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Minto Mine Environmental Monitoring, Surveillance and Reporting

1. ID Area Northing Easting Elevation Date Installed Reading m m m Frequency A210 Area 2 Pit south crest 6944268 42 384934 69 861 28 2011 07 01 Weekly A211 Area 2 Pit south crest 6944257 41 384891 47 869 88 2011 07 01 Weekly ASHO5 Airport road 6944280 52 385830 65 850 16 2011 03 07 Monthly ASHO6 Airport road 6944331 73 385623 79 824 17 2011 03 07 Monthly DSSH 06 Dry Stack Tailings 6944971 61 385553 16 773 83 2010 04 06 Weekly DSSH 10 Dry Stack Tailings 6944992 62 385807 51 763 12 2010 04 06 Weekly DSSH 12 Dry Stack Tailings 6944933 16 385704 30 773 99 2010 04 06 Weekly DSSH 14 Dry Stack Tailings 6944920 27 385606 55 782 88 2012 04 21 Weekly DSSH 15 Dry Stack Tailings 6944942 65 385503 43 782 61 2012 04 21 Weekly DSSH 17 Dry Stack Tailings 6944980 74 385896 26 772 07 2012 04 21 Weekly DSSH 18 Dry Stack Tailings 6945069 81 385522 12 771 39 2014 02 28 Weekly DSSH 19 Dry Stack Tailings 6945085 22 385642 14 769 16 2014 02 28 Weekly DSSH 20 Dry Stack Tailings 6945137 83 385730 25 765 83 2014 02 28 Weekly DSSH 21 Dry Stack Tailings 6945074 87 385735 67 767 74 2014 02 28 Weekly DSSH 22 Dry Stack Tailings 6945023 66 385710 13 770 65 2014 02 28 Weekly DSSH 23 Dry Stack Tailings 6944599 38 385491 13 797 40 2014 02 28 Weekly DSSH 24 Dry Stack Tailings 6944757 90 385712 10 792 07 2014 02 28 Weekly DSSH 25 Dry Stack Tailings 6944753 94 385894 65 793 38 2014 02 28
2. 8 Field Measurement of Water Quality Parameters eene enne nnn nente 8 Sample Goll amp CHo sioe oie ESI rrr 9 Field Notes and Photographic nn ennnnrnr nennen nr en nennen nnns 12 Sample Gustody be ted endete De i te e d ra 12 Data Managerriernt irte i et d Le ette De dese deg tese Dee ote dee sane Tende Perdu ep ce dut eh 13 6 Quality Assurance and Quality 14 M S 14 Quality Assuranc 15 MESI me ERR 16 8 RBefetences 16 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP TABLE OF APPENDICES Appendix 1 Current Maxxam Contact and Shipping Label Appendix 2 Minto Environment Water Quality Field Form Appendix 3 Sample Chain of Custody Form MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP 1 Purpose The standard operating procedures SOP in this document serve as a guideline for the collection of surface water quality samples from water bodies at Minto Mine Minto specified by Water Use Licence QZ96 006 The Minto Mine Water Quality Monitoring SOP follows methods and procedures described in
3. Acronym Definition A2P Area 2 Pit AAS GF Atomic Absorption Spectroscopy Graphite Furnace ABA Acid Base Accounting AP Acid generating potential ARD Acid Rock Drainage BMP Best management practices C T Total copper CALA Canadian Association for Laboratory Accreditation Capstone Capstone Mining Corporation CEQG Canadian Environmental Quality Guidelines Chain of command CPUE Catch per Unit Effort DOC Dissolved organic carbon DPP Drive point piezometer DRP Minto Mine Decommissioning and Reclamation Plan DSTSF Dry stack tailings storage facility EEM Environmental Effects Monitoring EMSRP Environmental Monitoring Surveillance and Reporting Plan ICP Inductively coupled plasma ICP MS Inductively coupled plasma mass spectrometry IROD Ice rich overburden dump MCDS Minto Creek Detention Structure Minto Minto Explorations Ltd MintoEx Minto Explorations Ltd MMER Metal Mine Effluent Regulations MVF Mill valley fill MWD Main waste dump NP Neutralizing potential QA QC Quality Assurance Quality Control QML Quartz Mining Licence RISS Regulatory Information Submission System ROD Reclamation overburden dump S T Total sulphur SFN Selkirk First Nation SOP Standard operating procedure SWD South West Dump TSS Total suspended solids WSP Water Storage Pond WUL Water Use Licence QZ96 006 YWB Yukon Water Board June 2014 V Minto Explorations Ltd Envi
4. 7 EEEE eta t D XML CC IR LX S c tree 7 Discharge Measurement using a Current Meter 4 nnne en 8 Rated Bell it AER 11 VolumetricMeasu rements mete Pe eure eec tete regt ter ce aet E 11 MB LICNdelnL Dme 11 Discharge Galculations 2 5 det PO ei er ii bei n ed ea eiu Ee SER ae RR 11 Continuous Water Level and Inline Pipe Flow Meter Data nennen nennen 13 Volumen Measurements tenet eb pen pete etu ge Elit ex hne 13 9 Quality Assurance and Quality 13 eden mU 13 Quality AsSUrariee h do a addi e diam gd ite 14 10 References oun eU e DIL Dcus 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP TABLE OF APPENDICES Appendix 1 Minto Environment Hydrology Field Form MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP 1 Purpose The standard operating procedures SOP in this document serve as a guideline for the collection of water quantity flow discharge data from water bodies at Minto Mine Minto specified by Water Use Licence QZ96 006 Water quantity data is critical for a variety of assessment and planning purposes at Minto and is used to interpret water quality data prepare site water balances create operating plans
5. Ground Temperature Cable Name Location Status DST 1 DSTSF area Destroyed DST 2 DSTSF area Destroyed DST 3 DSTSF area Operational DST 4 DSTSF area Operational DST 5 DSTSF area Destroyed DST 6 DSTSF area Operational DST 7 DSTSF area Destroyed DST 8 DSTSF area Destroyed DST 9 DSTSF area Destroyed DST 12 DSTSF area Operational 96 G08 DSTSF area Destroyed MWPT 1 Mill Water Pond area Operational MWPT 2 Mill Water Pond area Operational SDT 1 Southwest Dump area Operational SDT 2 Southwest Dump area Operational SDT 3 Southwest Dump area Operational SDT 4 Southwest Dump area Operational 08SWC271 Southwest Dump area Destroyed 08SWC274 Southwest Dump area Destroyed 08SWC275 Southwest Dump area Destroyed O8SWC277 Southwest Dump area Destroyed 08SWC278 Southwest Dump area Destroyed 08SWC280 Southwest Dump area Buried under Southwest Dump Note installations at the Main Water Dam are excluded from this table 3 Groundwater Monitoring Plan 3 1 Monitoring Objectives As stipulated in WUL QZ96 006 this groundwater monitoring plan is to provide for monitoring of potential impacts on groundwater from the mine components including but not necessarily limited to e Dry Stack Tailings Storage Facility e Mill area e Main Pit e Area 2 Pit e Main Waste Dump e Southwest Waste Dump and the e Water Storage Pond An additional objective of this groundwater monitoring plan is to provide for the development of b
6. esses 7 3 5 0 M M 7 3 6 REPOPtING 7 4 References 7 List of Tables Table 1 Summary of Groundwater Wells Minto Mine enne Table 2 Summary of Existing Vibrating Wire Piezometers Minto Mine eene Table 3 Summary of Existing Ground Temperature Cables Minto Table 4 Operational Groundwater Monitoring Table 5 Baseline Groundwater Monitoring enn List of Figures Te SILC E 1 Introduction Minto Explorations Ltd Minto was issued Water Use Licence QZ96 006 Amendment 8 on October 18 2012 Amendment 8 included a number of conditions including Condition 96 which requires Minto to file an updated Groundwater Monitoring Plan within 6 months of the effective date of the licence amendment This document constitutes the required updated plan For reference the text of Condition 96 is as follows Condition 96 Within 6 months of the effective date of Amendment 8 the Licensee shall submit to the Board an updated detailed Groundwater Monitoring Program Plan for the purpose of monitori
7. eec e re tec e 8 6 1 3 TRES TONS 10 6 1 4 Vibrating Wire 11 7 Procedures and Documentation esses sees E ne nest 12 7 1 Data Collection Schedule 5 5 1 0 12 7 2 Data Collectiori ProcedUres iei eti ei erre eere 12 7 3 Documentation scoir na a e a a R EE Raa E 12 8 Quality Assurance Quality 12 95 REPONN UL LLLI 13 List of Tables Table 1 Description of Structures Monitored at enne nnne nennen nnn 2 Table 2 Design Documents and Monitoring Inspection Guidance Documents 4 Tabl 3 Roles and Responsibilities rte eet ae 5 Table 4 nopein ge 6 Table 5 Inclinoreters z oct triente ee nte e ede Goede rn eoa e TEA 7 Table 6 Survey HUDS 8 Table 7 E 10 Table 8 Vibrating Wire 11 REDO IMB 13 List of Appendices Appendix A Instrumentation Plan Appendix B Data Collection and Input Manuals Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 1 Introduction The following document describes the instrumentation and monitoring p
8. 56 List of Tables Table 1 1 Summary of Regulatory Monitoring 1 Table 2 1 Minto Mine Monitoring Station Descriptions and Coordinates 5 Table 2 2 Water Quality and Hydrology Monitoring Program 10 Table 2 3 Metal Mine Effluent Monitoring Program Requirements and 12 Table 2 4 Operational Groundwater Monitoring 13 Table 2 5 Baseline Groundwater Monitoring 14 Table 2 6 Seepage Monitoring Station Locations and Sampling Frequency 16 Table 2 7 MCDS Seepage Monitoring Program 19 Table 2 8 MCDS Triggers and Responses enne en nenenn nnns ensi 20 Table 3 1 Acid Base Accounting Monitoring Program Requirements 24 Table 4 1 Snow Survey Course Locations 30 Table 5 1 Mine Infrastructure and Workings Monitoring Program 31 Table 5 2 Physical Inspection Roles and Responsibilities cesses eene 32 Table 6 1 Biological Monitoring Program Sample Locations and 33 T
9. a Merge amp Center fo 60 Eo Clipboard a Font P Alignment a Number 144 p A B D u x 2 AL MINTO MINE DRY STACK TAILINGS STORAGE FACILITY 3 4 Tab Use Instructions Note 5 1 Enter Date Barometer readings obtained fron 6 2 Enter Time VW Piezometer readings obtained 7 3 Enter Reading B and Temp Reading to corresponding piezo RED indicates assumed values 4 Enter Barometer Reading Grey row highlight indicates begin N A indicates a missing reading DSP 5B DSP 6A DSP 6B Temp Pessina 0 02 DSP 5A 0 7 2013 08 2013 16 2013 26 2013 27 2013 Apr 28 2013 Apr 30 2013 May 16 2013 Jun 17 2013 Jun 18 PEN Barometric pressure can be obtained from the site s weather monitoring stations Data is stored here X Environmental Environmental Monitoring Program 1 MASTER LOGS Meteorology Station Data Met Station 1 and 2 Data Summary xlsx Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 this page is left blank Invasiveness Rank 1 highly invasive may displace or replace native ecosystems 2 aggressive widespread persistent but may not replace native species or change ecosystem function 3 taxa present in the territory that area not known to be invasive here but have been found to be invasive in other jurisdictions 4 has been
10. N N a Number of Containers LIT TITEL Mp ee ee n mo c qp rr ima pL TE FE __ ee EE i ER RR RT RR ERG ERE ERG E RE ER ES DR GR E E 80 Print name and sign Print name and sign Laboratory Use Only Relinquished By _ Date yy mm dd Time 24hr Received by Date yy mm dd N Time 24 hr Time E on Receipt Custody Seal IT IS THE RESPONSIBILITY OF THE RELINQUISHER TO ENSURE THE ACCURACY OF THE CHAIN OF CUSTODY RECORDS CHAIN OF ae MAY RESULT IN ANALYTICAL LAYS frase BBY FCD 00077R2 C Maxxam Analytics Success Through Science CAPSTONE MINING CORP MINTO MINE MINTO MINE SURFACE WATER HYDROLOGY STANDARD OPERATING PROCEDURES Prepared by Minto Explorations Ltd October 2012 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP TABLE OF CONTENTS 1 PUrpOSOe volumi m II Rm MD eo eet erp di E MeL 4 2 Responhsibilities onines eU e agen 4 Field aun hieu 4 SUPESMVISOMS m ME cR 5 3 Hydrometric Station Installation 5 4 Jh E 6 GNE Ili rp UE 6 6 Field Notes and Photographic Record 6 Water Quantity Data Collection
11. Min to gis mxd S tudie sS eepMonitoring See pMonitoring 2013 20140108 mxd Last edited by mducharme 08 01 201 4 14 46 PM Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 2 5 Minto Creek Detention Structure MCDS Seepage Monitoring Program The Minto Creek Detention Structure MCDS is located to the northeast and downstream of the DSTSF Figure 2 5 The MCDS is proposed to be decommissioned following regulatory approval of the Phase V NI mine expansion Generally the objective of the MCDS Seepage Monitoring Program is to monitor the physical condition and performance of the MCDS The MCDS seepage monitoring program includes regular physical monitoring MCDS pond water level recording installation and monitoring of ground temperature cables and assessment of foundation thawing contaminant monitoring and transport assessment and the establishment of appropriate triggers and adaptive responses Monitoring at the MCDS is summarized in Table 2 7 When the MCDS is decommissioned a new facility of some kind will be constructed at the toe of the expanded Mill Valley Fill extension Appropriate monitoring for a new facility will be incorporated into the monitoring programs in the EMSRP Table 2 7 MCDS Seepage Monitoring Program Component Frequency 1 After the spring thaw period in T May J a Annual physical inspection av e Physical Monitoring 2 Prior to the on
12. e f reviewing new results in comparison to past trends suggests that results are suspect or if the results exceed the applicable standards for a particular parameter an investigation will be initiated The lab should be requested to review their QA QC for that batch and re run the sample or analyze waters from another sample bottle for the suspect parameter s e Unless it is obvious that the anomalous result that is over discharge criteria is false new samples should be taken and sent immediately 6 Quality Assurance and Quality Control The Minto Quality Assurance and Quality Control plan has been created to provide confidence in the data collected for all environmental monitoring and sampling programs QA QC is an integral component to quality surface water quality sampling General QA QC procedures that apply to the Water Quality Monitoring Program are described in this section Quality Control Quality control protocols are the set of routine procedures and methods designed to achieve and maintain a recognized level of quality Therefore the collection of reliable surface water quality field data at Minto is accomplished by following the procedures described in this document Quality assurance includes the procedures that keep track of those procedures and provide a check on the quality of the data produced Some of the most common quality related problems introduced in surface water quality sampling include the mislabelling or swit
13. Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 Structure Design Reports Geotechnical Design Proposed Southwest Waste Dump Minto Mine Yukon EBA File W14101068 005 September 2008 Southwest Waste Rock Dump SWD Geotechnical Design Tailings Water Dam Minto Project Yukon EBA File 0201 95 11509 Dec 1995 Water Storage Pond Dam WSP As built Construction Report Water Retention Dam Minto Mine Minto YT EBA File 1200173 001 April 2008 4 Roles and Responsbilities Monitoring Inspection Guidance Reports Geotechnical Design Proposed Southwest Waste Dump Minto Mine Yukon EBA File W14101068 005 September 2008 Draft Operation Maintenance and Surveillance Manual Water Retention Dam Minto Mine Minto YT EBA File W14101068 002 April 2008 The following table lists the roles and responsibilites for physical monitoring on the site Table 3 Roles and Responsibilities Role Responsibilities Collect instrumentation data at specified frequencies Geotechnical Technicians S Internal reporting of monitoring data Maintain equipment QA QC of data collection Input data into monitoring spreadsheets databases Ensure compliance with license requirements Geotechnical Engineers Monthly quarterly and annual water use license WUL reporting Visual inspections at specified frequencies Review and update Physical Monitoring Plan Environmental
14. 2 2 1 2 Vibrating Wire Piezometers esssssssessseeeeee eene enne nnne enne nenne nnne nnt gana assess nta nass 2 2 1 3 Ground Temperature 8 nennen nennen nnn nnns inen trina nasse 4 3 Groundwater Monitoring ganas nn 5 3 1 Monitoring ODbJeCLIVes qnia uaa eaten eae aiai ieii 5 3 2 Monitoring Requirements rere eren deed OPE ue Tees Pa epa cred 5 3 3 5 3 4 Analytical Suite for Groundwater Samples esses 7 3 5 0 M M 7 3 6 REPOPtING 7 4 References 7 List of Tables Table 1 Summary of Groundwater Wells Minto Mine enne Table 2 Summary of Existing Vibrating Wire Piezometers Minto Mine eene Table 3 Summary of Existing Ground Temperature Cables Minto Table 4 Operational Groundwater Monitoring Table 5 Baseline Groundwater Monitoring enn List of Figures Te SILC E 1 Introduction Minto Exploratio
15. communication equipment and wearing proper footwear and gloves for the job It also means that sampling is frequently completed by two field staff Field staff and supervisors should review all appropriate Job Hazard Analyses and Safe Work Procedures to ensure that the safety related elements of all tasks related to sampling are understood 4 General Guidelines for Surface Water Quality Monitoring Water samples field measurements and observation of site conditions are collected from the same area for every sampling event whenever possible to achieve representative results over time MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Standard field forms are used to document all the required details for each sampling event including thorough descriptions of unusual conditions and variations to the sample site or procedure This data is stored in the Minto Water Quality Database The following procedures practices and considerations will be followed by all staff involved in the Water Quality Monitoring Program e All field staff will have the appropriate training and experience with field equipment sampling procedures and objectives prior to performing monitoring duties or be accompanied by experienced staff e Organize a sufficient supply of bottles labels preservatives and filters to complete the sampling ahead of time Sufficient quantities of these items should be stocked at the mine at all times e Sample
16. for each point Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Downloading E 5 Connect USB cord from computer to the readout box Open the software Multi Readout Host Ll Multi Readout Host Turn on the power on the readout box The software will recognize the readout unit and prompt to download data Choose Yes to download the data from the readout unit Multi Readout Host 3 e Would you like to download TH2016 data Once data is downloaded you will have the option to save all data as csv file Choose Yes and the data will be stored in My Documents in a folder named TH2016data Multi Readout Host 83 Data download complete WEB Would you like to save the data into CSV file Multi Readout Host Config file TH Download Upload Display Add Export Delete Data Data sites Records Location CSV Selected Folder Instrument oe Location Sensor Thermistor Type Reading 13 DST 12 0 13 DST 10 WDT4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Input Spreadsheets for piezometer data input and tracking are stored here X Mine Technical 03 Monitoring Piezo and GTC 1 Open the spreadsheet for the area monitored JE gt Computer gt data min fs 01 X Mine Technical 03 Monitoring Piezo and GTC
17. 2 1 1 Groundwater Wells A variety of groundwater wells have been installed at the Minto Mine site over the life of the project These wells have been installed for a range of purposes and the information available for these wells varies case by case Table 1 provides summary information of the installed wells Individual reports describing the drilling results installation and preliminary testing results are provided in the Reference section of this GMP 2 1 2 Vibrating Wire Piezometers Several vibrating wire piezometers have been installed during geotechnical investigations at the Minto Mine These instruments provide measurements of both piezometric pressure and temperature the latter used to increase the accuracy of the calculated pressure measurements when temperatures are above 0 The instruments will also continue to provide temperature data when temperatures are below O C and the transducer is frozen Table 2 provides summary information about the existing vibrating wire piezometers Table 1 Summary of Groundwater Wells Minto Mine Groundwater Well Name Location Status P94 20 Main Water Dam area Destroyed P93 E Main Pit area Destroyed during mining 09 01 Main Waste Dump area Operational MW 09 02 DSTSF Area Destroyed MW 09 03 Minto North Pit area Operational MW 09 04 Main Pit area Destroyed MW11 01A Downgradient of Main Pit Operational someti
18. January 2006 EBA 2007 Construction Quality Assurance Manual for Waste Dumps Tailings Water Dam Mill Water Pond and Diversion Ditch Minto Project Yukon EBA File 0201 95 11509 August 1997 Minto Project Minto Creek Detention Structure Seepage Monitoring Program EBA File W14101068 001 October 25 2011 Reclamation Overburden Dump Expansion Geotechnical Design Report EBA File W14101068 0040 June 29 2010 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 Structure Design Reports Geotechnical Design Proposed Southwest Waste Dump Minto Mine Yukon EBA File W14101068 005 September 2008 Southwest Waste Rock Dump SWD Geotechnical Design Tailings Water Dam Minto Project Yukon EBA File 0201 95 11509 Dec 1995 Water Storage Pond Dam WSP As built Construction Report Water Retention Dam Minto Mine Minto YT EBA File 1200173 001 April 2008 4 Roles and Responsbilities Monitoring Inspection Guidance Reports Geotechnical Design Proposed Southwest Waste Dump Minto Mine Yukon EBA File W14101068 005 September 2008 Draft Operation Maintenance and Surveillance Manual Water Retention Dam Minto Mine Minto YT EBA File W14101068 002 April 2008 The following table lists the roles and responsibilites for physical monitoring on the site Table 3 Roles and Responsibilities Role Responsibilities Collect instrumentation data at spe
19. L Mint Creek Periphyton d ins Lower Wolverine Monitoring Program GU water Creek ETE quality station W2 Fisheries Monitoring Lower Minto Creek below Monthly during the open Lower Big Creek Program the canyon water season June 2014 33 62 40 0 N 137 20 0 W 137 10 0 W 137 0 0 W N Ls S 3 000 0 3 000 eter MAP INFORMATION Map Projection NAD 1983 Data Source Department of Natural Resources Canada All rights reserved Created By J Wilson Creation Date March 2013 Project No 2461 Features 32 mine Site SAMPLES COLLECTED B water Bl sediment Periphyton BllBenthos Fish 9 Water Quality Station Fish Barrier Water Flow Contours 30m interval Roads Figure 2 1 Monitoring Areas for the Minto Creek Sediment Periphyton and Benthic Invertebrate Community Assessment 2012 Created by nnow environmental inc E Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 6 1 1 Sediment Monitoring Program The objective of the Sediment Monitoring Program is to monitor the sediment quality of Minto Creek and to provide data to allow interpretation of the potential influence of the Minto Mine on sediment quality Sediment data analysis is performed using temporal comparisons spatial comparisons control impact design and comparisons to the Canadian
20. Minto Mine current uses a variety of techniques and instrumentation for the collection of hydrology data including continuous measurements using Solinst level loggers continuous measurements using inline flow meters measurements using a calibrated flume as well as volumetric measurements and manual measurements using a Hach FH950 Electromagnetic Velocity Meter For current meter measurements errors in the measurement of width depth and velocity as well as the lack of care in choosing the number of vertical measurements and observations in a vertical measurement all combine to reduce the overall accuracy of water quantity data To a large extent human errors can be avoided by careful attention to detail and by adhering to established and proven techniques and routines Systematic errors can be reduced significantly by proper maintenance and calibration of instruments and equipment and by adequate training However random errors will always occur A significant reduction in these errors can be achieved if field staff performing the measurement can recognize the potential problem areas and can take the appropriate precautionary measures to avoid or minimize them SOPs used as field guides have been prepared to minimize human error and manual measurements are conducted at the same location to minimize variability Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Standardized management of data col
21. Organize v Burn New folder 02 Reporting Name Date modified Type Size 03 Monitorin a 9 Ji Data downloads 2013 09 27 10 51 File folder a Data Input Information B rias sears Ground Temp and Piezo 2013 info 2013 11 20 7 20 File folder Ground Temp Cables 2008 2013 09 28 4 49 PM Filefolder Inclinometers a x old 2013 11 16 3 11 PM_ File folder Instrumentation Maps 2013 11 17645 MicrosoftExcel97 1 650 KB Piezo ant 3 GTC Piezometer Instrumentation Area 2 Pit 2013 09 27 9 25 AM Microsoft Excel 97 413 a Instrumentation Monitoring 3 pie BI GTC Piezometer Instrumentation DSTSF 2013 11 21 9 33 AM Microsoft Excel 97 2894 KB a E M 2013 11 16 5 53PM Microsoft 197 1017KB iui uox I Minto Master WSPD Instrumentation Spreadsheet 2013 11 17 8 41 Microsoft Excel 97 3842 KB zm Minto Pit Geotech Monitoring 2009 2010 05 27 5 19 PM Microsoft Excel 97 107 KB Pit Photo Monitoring Pit Wall Monitoring Logs WSP W12 W13 Water Elevations J 04 Long Term Planning 0 05 Mine Planning n 06 UG Mine Planning Jo 07 Drill amp Blast 08 Project Management J 09 Administration amp Safety J 11 How Tos Ji 13 Photos J 14 Geotechnical m 2 Openthe tab GTC Readings ATI IN me c a 1 3 4 270 5 5 a Minto Explora
22. Trip Blank A sealed container of deionized water sent from the laboratory used to detect any TB widespread contamination during transport and storage The trip blank is transported with the sample bottles for the entire duration of the sampling event Trip blanks indicate contamination within the bottle or from volatile compounds Field Blank A sample of deionized water that is prepared in the field using the same procedures as for FB collecting the field sample Preservative if required is added after the sample is collected Field blanks measure contamination from bottles collection methods the sampling environment and preservatives Duplicate Duplicate samples are independent samples collected from the same place and time to DUP determine the precision of environment and laboratory heterogeneity Duplicate samples measure the reproducibility of the sampling and analysis Field Spilt Aliquots taken from the same sample container and assumed to be identical Split samples FS can be sent to separate laboratories for analysis and the results can be used to determine inter lab variability Care must be taken to ensure that the samples are split homogeneously 9 3 Environmental Monitoring Programs QA QC 9 3 1 Hydrology QA QC The primary objective of hydrology data collection under the WUL is to monitor the quantity of water moving around Minto Mine as well as the quantity moving down the Minto Canyon watershed
23. be calculated and then the Average NP C T Average AP S T ratio value for the zone will be calculated June 2014 27 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine If the calculated bulk zone NP C T AP S T ratio is below the segregation criteria for the dump further sampling will be carried out to define the limits of the zone in three dimensions The non conforming material will be excavated and relocated to one of the waste rock dump locations that will ultimately be saturated no relocation will occur if the non conforming waste rock is already located where saturated conditions will exist in the long term i e in an in pit dump below the expected final water table elevation June 2014 28 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 4 Meteorological Monitoring Program Meteorological Monitoring at the Minto Mine consists of meteorological monitoring and data collecting including data on rainfall snowfall temperature evaporation wind speed and direction and total sunshine hours The Meteorological Monitoring Program is comprised of the Climate Monitoring Program section 4 1 and the Snow Survey Program section 4 2 Data collected under the Meteorological Monitoring Program along with baseline climatic data provides input for the following mine projects e Site water management e Prediction for yearly wat
24. conditions at Minto Thermistor strings consist of multiple temperature sensor nodes distributed along a single multi conductor cable installed within or attached to the outside of grouted PVC pipe EBA and RST thermistor strings have been installed on site EBA thermistors are read using a basic ohmmeter and RST thermistors are read using a RST TH2016B readout unit Table 7 Thermistors ID Area Northing Easting Elevation Thermistor Nodes Hole Date Reading m m m String No Depth Installed Frequency m A2T 1 Area 2 Pit 6944162 01 385305 61 822 39 3491 16 63 4 2013 04 21 Monthly DST 10 Dry Stack Tailings 6944584 06 385489 49 797 13 3492 16 63 4 2013 04 17 Monthly DST 11 Dry Stack Tailings 6944899 64 385538 89 787 66 3494 16 86 9 2013 04 05 Monthly DST 13 Dry Stack Tailings 6945014 60 386271 29 777 01 3495 16 101 5 2013 04 02 Monthly DST 14 Dry Stack Tailings 6944769 09 385713 42 791 47 3497 16 66 5 2013 04 12 Monthly DST 15 Dry Stack Tailings 6945033 78 385958 17 764 51 3493 16 64 0 2013 03 25 Monthly MWPT1 Mill Water Pond 6944992 23 385062 50 784 12 2070 16 23 8 2007 11 02 Quarterly MWPT2 Mill Water Pond 6945015 72 385113 61 784 22 2071 16 23 8 2007 11 02 Quarterly MW11 01 Water Pond 6945010 90 385097 00 784 50 2320 11 101 70 2011 11 20 Quarterly MW11 02 Ridgetop 6943887 385118 861 4 2322 7 30 79 2011 11 21 Quart
25. e Suite FP Field Parameters In situ parameters pH Conductivity and Temperature Groundwater samples will be submitted to an accredited laboratory for analysis 3 5 Quality Assurance Field duplicate samples will be collected at a frequency of one field duplicate sample per ten groundwater monitoring samples One field blank sample will be collected during each Spring Fall groundwater monitoring event Field blank samples will be collected from deionized water supplied by the analytical laboratory using the exact methods employed to collect groundwater monitoring samples including field filtration and preservation of the dissolved metals field blank 3 6 Reporting Results of the groundwater monitoring program will be included as part of the annual report for WUL QZ96 006 The groundwater monitoring program summary will also reference results of thermal and piezometric monitoring carried out under other site monitoring plans 4 References ASTM 2007 Standard Guide for Sampling Ground Water Monitoring Wells Designation D4448 01 Reapproved 2007 Minto Explorations Ltd 2011 Groundwater Monitoring Plan VERSION 2011 01 Dated Sept 2011 SRK 2008 Waste Dump Overburden Drilling Minto Mine Yukon Prepared for Minto Explorations Ltd May 2008 SRK 2012 Monitoring Well Installation Program 2011 Prepared for Minto Explorations Ltd February 2012 SRK 2013 2012 Minto Mine Groundwater Monitoring Well Installation Rep
26. errors will always occur A significant reduction in these errors can be achieved if field staff performing the measurement can recognize the potential problem areas and can take the appropriate precautionary measures to avoid or minimize them For a detailed description of common factors that lead to inaccuracies in current meter discharge measurements please refer to the Manual of British Columbia Hydrometric Standards RISC 2009 13 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Quality Assurance Quality assurance includes the procedures that provide a check on the quality of the data produced Minto Mine is continuously involved in consultation with professionals and technical experts regarding program design standard operating procedures and data review Ongoing staff training and inspections of staff especially new hires performing data collection activities help to ensure the results are consistent representative and high quality Standardized management of data collected in the field is important in hydrological monitoring programs Standard protocols and systems make the task of data processing easier and less likely prone to error Processing of data often involves returning to the original field notes to cross check suspicious values or to analyze site conditions that might have been responsible for anomalies in the logger records Therefore it is easiest to evaluate the quality of water quantity data successful
27. refrigerators equipped with thermometers Samples are maintained as close to 4 as possible from the time of collection until they are delivered to a laboratory After surface water quality samples have been transported back to the office field staff are responsible for inspecting the samples to ensure they are properly preserved labeled and sealed If the samples are to be analyzed on site they should be delivered to the Minto Lab as soon as possible Samples that require external analysis must be shipped to the appropriate laboratory with a completed chain of custody COC form An example of a COC form is provided in Appendix 3 This form is used to request sample analysis and track sample custody Filling out a COC should be done with field forms and samples on hand to confirm that all the sample containers for each station are accounted for and labeled correctly All samples must be submitted to the appropriate laboratory for analysis based on the maximum sample hold time Each parameter has a specific hold time that ensures the results generated are accurate However due to the remoteness of Minto Mine the maximum hold times for some samples will not be met For this reason it is essential that samples be shipped to the laboratory as soon as possible It may be necessary to ship samples on the same day as they are collected to preserve the accuracy of the sample analysis It is the responsibility of field staff to ensure the hold times are m
28. 1 3 Invasive Plants Reporting 42 7 2 Wildlife Monitoring Program 42 7 3 Erosion and Sedimentation Monitoring eee 46 8 Progressive Reclamation Effectiveness Monitoring Program 6 47 9 Quality Assurance and Quality 48 9 1 Quality Ass rance ie estere iude 48 9 2 QUALITY e E 48 9 3 Environmental Monitoring Programs QA QC csscccsssccsssseesececcecesseeesseeeesseceeseeesseeeenseeeeatecsees 49 9 3 1 Hydrology 49 9 3 2 Meteorology Monitoring Program nennen nnne 50 9 3 3 Hydrogeology Monitoring Program enne enne 50 9 4 External Laboratory entres ens 50 9 5 On site Laboratory darts eva aao ea REC RN ra TOC eO ON EUR Rd va 51 9 5 1 On site Lab VetificatiOn once teet 52 10 Data Evaluation and Reporting eii eoe uote nuno itn RR ERR RR RR bo 54 June 2014 ii Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 11 Referentes Ie
29. 13 DST 12 0 13 DST 10 WDT4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Input Spreadsheets for piezometer data input and tracking are stored here X Mine Technical 03 Monitoring Piezo and GTC 1 Open the spreadsheet for the area monitored JE gt Computer gt data min fs 01 X Mine Technical 03 Monitoring Piezo and GTC Organize v Burn New folder 02 Reporting Name Date modified Type Size 03 Monitorin a 9 Ji Data downloads 2013 09 27 10 51 File folder a Data Input Information B rias sears Ground Temp and Piezo 2013 info 2013 11 20 7 20 File folder Ground Temp Cables 2008 2013 09 28 4 49 PM Filefolder Inclinometers a x old 2013 11 16 3 11 PM_ File folder Instrumentation Maps 2013 11 17645 MicrosoftExcel97 1 650 KB Piezo ant 3 GTC Piezometer Instrumentation Area 2 Pit 2013 09 27 9 25 AM Microsoft Excel 97 413 a Instrumentation Monitoring 3 pie BI GTC Piezometer Instrumentation DSTSF 2013 11 21 9 33 AM Microsoft Excel 97 2894 KB a E M 2013 11 16 5 53PM Microsoft 197 1017KB iui uox I Minto Master WSPD Instrumentation Spreadsheet 2013 11 17 8 41 Microsoft Excel 97 3842 KB zm Minto Pit Geotech Monitoring 2009 2010 05 27 5 19 PM Microsoft Excel 97 107 KB Pit Pho
30. 1949 3 Mint family Galeopsis tetrahit var bifida Bifid Hemp nettle 1 50 revegetation horticulture 1980 4 Mint family Lamium amplexicaule Common Dead nettle R 3 nr horticulture 2007 7 Mint family Stachys pilosa Hedge nettle R 2 unknown 1 family Linaria dalmatica Dalmatian Toadflax X 3 58 unknown 2004 1 Figwort family Linaria vulgaris Butter and Eggs C 1 69 horticulture 1970 5 Figwort family Veronica arvensis Corn Speedwell R 3 unknown 1970 4 Figwort family Veronica longifolia Long leaf Speedwell R 2 nr agriculture horticulture 1980 5 Figwort family Veronica serpyllifolia Thyme leaf Dragonhead R 3 36 unknown 1970 Yukon Introduced Plants January 2012 Page 4 Abundance Persistence Date of first collection 5 Plantain family Plantago aristata Large bract Plantain X 3 unknown 1902 7 Plantain family Plantago major Great Plantain C 1 44 unknown 5 Bedstraw family Galium aparine Sticky willy X 3 agriculture birdseed 2007 6 Bedstraw family Galium palustre Common Marsh Bedstraw F 4 3 Valerian family Valeriana officinalis Garden Valerian or Allheal R 2 nr horticulture 2007 4 Sunflower family Achillea ptarmica Sneezeweed R 2 46 horticulture 2011 5 Sunflower family Anthemis cotula Stinking Chamomile X 3 41 agriculture 1902 7 Sunflower fam
31. 36 months after the day on which the interpretative report of the previous biological monitoring study water was required to be submitted OR if the results of the previous two consecutive biological monitoring studies indicate no effect within 72 months When invasive species are discovered Wildlife monitoring Annual Report Progressive effectiveness program reclamation monitoring Annual Report Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 11 References ASTM 2013 Standard Guide for Sampling Ground Water Monitoring Wells ASTM International CCME 2011 Protocols Manual for Water Quality Sampling in Canada Canadian Council of Ministers of the Environment Ottawa Canadian Council of Ministers of the Environment CCME 2014 January 15 Sediment Quality Guidelines for the Protection of Aquatic Life Retrieved February 12 2014 from Canadian Environmental Quality Guidelines Summary Table http st ts ccme ca Clark M 2003 British Columbia Field Sampling Manual Water Air and Climate Change Branch Ministry of Water Land and Air Protection Victoria Province of British Columbia Duncan D amp Bruynesteyn A 1979 Determination of acid production potential of waste materials p 10 Metallurgical Society of AIME paper A 79 29 Environment Canada 2011 Metal Mining EEM Guidance Document Chapter 4 Effects on Fish Habitat
32. 96 WDP 11 VW7201 712 96 2007 11 16 Monthly WDP 12 Water Storage Pond 6945523 386551 694 64 WDP 12 VW7209 694 64 2007 11 16 Monthly WDP 13 Water Storage Pond 6945533 386578 684 55 WDP 13 VW7205 684 55 2007 11 07 Monthly SDP 2A VW12912 843 414 SDP 2 Southwest Dump 6944595 06 383971 30 843 41 2010 01 31 Monthly SDP 2B VW12911 842 714 SDP 3A VW12906 854 266 SDP 3 Southwest Dump 6944333 87 383824 67 854 27 2010 01 28 Monthly SDP 3B VW12907 853 566 SDP 4A VW12908 858 494 SDP 4 Southwest Dump 6944163 62 383783 54 858 49 2010 01 30 Monthly SDP 4B VW12909 857 794 11 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 7 Procedures and Documentation 7 1 Data Collection Schedule Data is collected by geotechnical technicians in the mine technical department A regular schedule is followed and is used for tracking compliance with license requirements The schedule is stored in the following location X Mine Technical 03 Monitoring Monitoring To Do Frequency xlxs 7 2 Data Collection Procedures Data collection manuals for all monitoring devices are included in Appendix B 7 3 Documentation After collection data is input into a series of spreadsheets and databases used for storing tracking and plotting instrumentation data Instructions for data input are contained in the instrumentation manuals in Appendix B Data input files are stored in the following location X Mine Technical 03 Monitoring
33. Alaska Highway g Klondike Highway 3 Haines Road 4 Campbell Highway 5 Dempster Highway 8 Canol Road Atlin Road Tagish Road 9 Top of the World Highway t Silver Trail Stewart Cassiar Highway June 2014 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan 385000 390000 395000 6950000 Y Minto Creek Minto Open Pit lt i 400000 405000 Klondike gt Highway 6950000 s 8 8 8 18 s LS amp Legend Road Main Road Secondary Topo Contours River amp Creeks Minto Explorations Ltd 2 3 Airstrip Minto Landing Figure 2 Lakes E Rivers Major Minto Mine Minto Landing Location Plan 385000 Figure 1 2 Minto Mine Access Location June 2014 4 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 2 Water Monitoring Program Water quality and hydrology monitoring at the Minto Mine is conducted in accordance with the requirements outlined in WUL QZ96 006 and in the Metal Mine Effluent Regulations MMER Monitoring programs for water quality and hydrology at the Minto Mine McGinty Creek groundwater seepage Minto Creek Detention Structure MCDS seepage and under the MMER are detailed below in Sections 2 1 through 2 5 Monitoring stations are described in Table 2 1 and are shown in Figure 2 1 and Figure 2 2 As the Phase V VI mine plan incorporate
34. Analytical Requirement Representative samoin 1 Internal Laboratory Sampled when P li S T and C T Overburden ET whenever overburden is overburden is mined mined 2 External Laboratory ABA and trace element analyses in n paced 1 Internal Laboratory Each blast hole P S T and C T composite of blast hole cuttings Open Pit One composite sample Waste Rock tet ised One composite sample veo of 4 5 individual samples per waste class per 2 External Laboratory ABA n that are collected at a blast containing gt 25 and trace element analyses rate of approximately 1 waste sample for every 7 holes drilled le f npa ind Representative 1 Internal Laboratory Underground 50m of development I E S T and C T Waste Rock represents 3300 i from transfer pad pile tonnes of waste rock it e 1 External Laboratory ABA m per month comprised of Tailings Solids Monthly i and trace element analyses weekly final tailings sample 3 1 4 ABA Program Reporting Analytical results are added to the existing mine ABA database and will be reported on an annual basis as part of the WUL Annual Report The report will include acomparison between new and historical data including discussion e comparison of NP AP and sulphide sulphur log NP AP versus log percent sulphide sulphur graph June 2014 24 Minto Explorations Ltd Environmental Monitoring Surveillan
35. Benthic Invertebrate Community Structure Survey Ottawa Environment Canada 2001 Guidance Document for Flow Measurement of Metal Mining Effluent Ottawa Minister of Public Works and Government Services Canada Environment Canada 2001 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Ottawa Minister of Public Works and Government Services Canada Environment Canada 2011 Field Manual Wadeable Streams Canadian Aquatic Biomonitoring Network Science and Technology Branch Dartmouth Environment Canada Interstate Technology Regulatory Council 2010 August Mining Waste Treatment Technology Selection Retrieved February 11 2014 from http www itrcweb org miningwaste guidance Mathues P amp Omtzigt T 2013 Yukon Revegetation Manual Practical Approaches and Methods Retrieved January 22 2014 from http www yukoncollege yk ca downloads YEPbk reveg CH1 pdf MEND 1991 Mine Environment Neutral Drainage Program Acid Rock Drainage Prediction Manual MEND Project 1 16 1 b Prepared by Coastech Research Inc North Vancouver B C March 1991 Metal Mine Effluent Regulations SOR 2002 222 06 06 2002 Mills C 1997 An Assessment of the Results of Acid Base Accounting ABA and Mineralogical Test Work on Eight Samples from the Proposed Minto Project Yukon Territory Consulting Environmental amp Mineral Process Engineer for the Selkirk First Nation Pelly Crossing Yukon Territory Va
36. Data entered Data reviewed 20 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 3 Sample Chain of Custody Form 21 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Burnaby 4606 Canada Way Burnaby V5G 1K5 Ph 604 734 7276 Fax 604 731 2386 Toll Free 800 665 8566 CHAIN OF CUSTODY RECORD am Click here to get the COC number Maxxam Job EB530912 1 of 1 Invoice To Require Report Yes 0 Report To Company Name Explorations Ltd Company Name Minto Explorations Ltd PO 113796 Contact Name Elvina Wong Contact Name Minto Environment Quotation Address Suite 900 999 West Hastings St Address Suite 900 999 West Hastings St roject Vancouver B C Pc V6C 2W2 Vancovuer B C Pc V6C 2W2 Name Minto Env Monitoring Phone Ph 604 684 8894 Fax 604 688 2120 Phone Ph 604 684 8894 Fax 604 688 2120 Location Yukon E mail E mail minto environment mintomine com Sampled by REGULATORY REQUIREMENTS SERVICE REQUESTED CSR Regular Turn Around Time TAT CCME 5 days for most tests BC Water Quality RUSH Please contact the lab Other 1 Day Day C Day E 0 DRINKING WATER Date Required lt SPECIAL INSTRUCTIONS Return Cooler 7 Ship Sample Bottles please specify Field Filtered Diss d Organic Carbon Total Organic Carbon
37. E 12 8 Quality Assurance Quality 12 95 REPONN UL LLLI 13 List of Tables Table 1 Description of Structures Monitored at enne nnne nennen nnn 2 Table 2 Design Documents and Monitoring Inspection Guidance Documents 4 Tabl 3 Roles and Responsibilities rte eet ae 5 Table 4 nopein ge 6 Table 5 Inclinoreters z oct triente ee nte e ede Goede rn eoa e TEA 7 Table 6 Survey HUDS 8 Table 7 E 10 Table 8 Vibrating Wire 11 REDO IMB 13 List of Appendices Appendix A Instrumentation Plan Appendix B Data Collection and Input Manuals Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 1 Introduction The following document describes the instrumentation and monitoring program currently in place at Minto to monitor the stability of mining structures including waste rock tailings and water storage facilities The program consists of two main components instrumentation to measure ground conditions and deformation and regular geotechnical inspections The following sections summarize inspection and data collection frequencies instrument installation details and locations and data collection proce
38. Environmental Quality Guidelines CEQG for sediment CCME 2014 Specific monitoring areas include upper Minto Creek near water quality monitoring station W3 lower Minto Creek downstream of water quality station W2 and two reference areas Upper McGinty Creek and lower Wolverine Creek Sampling is to target deposits of fine sediments silt and clay in quiescent pools and wetted backwater locations i e depositional locations Each monitoring area is sampled five times and the five samples are to be separated by at least three creek bankfull widths Supporting water quality measures are recorded at each monitoring area including in situ temperature dissolved oxygen specific conductance and pH Samples are submitted to a Canadian Association for Laboratory Accreditation CALA accredited analytical laboratory for the analysis of particle size distribution gravel sand silt and clay total organic carbon metals and total Kjeldahl nitrogen Sampling methodology is detailed as follows 1 Forsamples in upper Minto Creek and the matched reference area e Collect sample using a stainless steel or Teflon spoon or scoop with only the top two centimeters of deposited sediment collected e Each sample to be made up of at least 10 scoops per sample 2 Forsamples in lower Minto Creek and the matched reference area e Collect sample using a petite ponar samples for particle size distribution characterization and a hand corer samples f
39. MINE SURFACE WATER HYDROLOGY SOP Surveying and Tracking Staff Gauge Drift Due to ice movement and natural freeze thaw cycles staff gauges are subject to move or drift over time If a staff gauge moves the reference elevation to which all other measurements and records at that site are compared to changes Always document conditions that may suggest the staff gauge moved in any direction Photos and any estimates of amount and direction of drift are very useful when correcting data records and planning repairs Annual surveying of staff gauge elevation typically in the spring tracks changes in staff gauge location and allows for correction of water level records if needed Detailed procedures for level surveys are not provided in this SOP however the following elevation points must be collected e Elevation of 0 000m on the staff gauge should be relative to an arbitrary elevation assigned to a benchmark in the area typically a spike in the base of a large nearby tree e Elevations of at least two benchmarks and e Elevation of the water surface at the gauge Bench marks are permanent reference points with known elevations They are established at each station in a stable location close enough to the gauge to allow for efficient surveying anchored where they are not likely to move or be damaged The ability of the benchmark to maintain its position in the local environment is essential At Minto benchmarks are typically a spike or lag bol
40. Maxxam Contact and Shipping Label Appendix 2 Minto Environment Water Quality Field Form Appendix 3 Sample Chain of Custody Form MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP 1 Purpose The standard operating procedures SOP in this document serve as a guideline for the collection of surface water quality samples from water bodies at Minto Mine Minto specified by Water Use Licence QZ96 006 The Minto Mine Water Quality Monitoring SOP follows methods and procedures described in Protocols Manual for Water Quality Sampling in Canada CCME 2011 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Environment Canada 2001 and Ambient Freshwater and Effluent Sampling Manual RISC 2003 This document is intended for Minto Mine employees familiar with the location of water quality sites at Minto and who are knowledgeable in surface water sampling methods Along with on the job training the purpose of this document is to ensure the Minto Mine Water Quality Monitoring Program is carried out consistently and that all surface water samples are representative of the environmental conditions at the time of sampling 2 Responsibilities The reliability and quality of data generated by the Water Quality Monitoring Program is dependent on the staff involved and attention given to the sampling procedures quality control protocols and field equipment It is crucial that water quality samples be collec
41. Officers Review annual WUL report Chief Engineer Compile Monthly quarterly and annual water use license WUL reports Ensure compliance with license requirements Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 5 Inspections Table 4 lists the regular required inspections for each mining structure Table 4 Inspections Structure Frequency Description Dry stack tailings facility Mill Valley Fill Main waste rock dump Southwest waste dump Reclamation Overburden dump Ice rich overburden dump Mill water pond Water storage pond dam Area 1 Pit South wall buttress Mill and Camp Minto Creek detention structure Big Creek bridge South diversion ditch Area 2 and Area 118 pit walls Water storage pond dam Mill water pond Waste rock and overburden dumps Diversion Ditch May June and September Weekly during active mining Weekly daily during filling Weekly daily during filling Inspection and data review by geotechnical engineer as per QZ96 006 Clause 11 Visual inspection by geotechnical engineer geologist mine engineer Visual inspection and inspection for water seepage flows as per QZ96 006 Appendix 2 Visual inspection and inspection for water seepage flows as per QZ96 006 Appendix 2 Visual inspection as per QZ96 006 Appendix 2 Visual inspection as per QZ96 006 Appendix 2 Minto Explorations Ltd Minto Mine Physic
42. Pennycress C 1 42 agriculture 1949 5 Rose family Potentilla biennis Biennial Cinquefoil X 3 nr unknown 1902 2 Rose family Prunus padus Maytree or European Bird Cherry C 2 74 horticulture 2003 2 Rose family Sorbaria sorbifolia False Spiraea R 2 nr horticulture 1992 2 Pea family Astragalus cicer Chick pea Milk vetch R 2 nr revegetation 1995 Page 3 Date of Rank Species Common Name Abundance Persistence Alaska Rank first collection 2 Pea family Caragana arborescens Siberian Peashrub R 2 74 horticulture 1949 3 Pea family Lotus corniculatus Garden Bird s foot Trefoil R 3 63 revegetation 2000 1 Pea family Medicago falcata Lucerne 1 64 argiculture 1967 3 Pea family Medicago lupulina Black Medick R 2 48 transportation 2007 2 Pea family Medicago sativa Alfalfa 1 59 agriculture revegetation 1980 1 Pea family Melilotus alba White Sweetclover 1 81 agriculture 1935 1 Pea family Melilotus officinalis Yellow Sweetclover C 1 69 argiculture 1980 3 Pea family Onobrychis viciifolia Common Sainfoin R 2 nr revegetation 1980 5 Pea family Trifolium cyathiferum Cup Clover X 3 agriculture 1902 2 Pea family Trifolium hybridum Alsike Clover 1 57 agriculture revegetation 1902 2 Pea family Trifolium pratense Red Clover 1 53 agriculture revegetation 1902 2 Pea family Trifolium repens White Clover C 1 59 agriculture revegetation 1916 7 Pea family
43. Prickly Sow thsitle R 2 46 horticulture 1904 6 Sunflower family Sonchus oleraceus Common Sow thistle F 4 46 1 Sunflower family Tanacetum vulgare Common Tansy U 2 60 horticulture transportation 1995 4 Sunflower family Taraxacum erythrospermum Red seeded Dandelion X 2 unknown 1949 2 Sunflower family Taraxacum officinale Common Dandelion C 1 58 unknown 1943 2 Sunflower family Tragopogon dubius Yellow Goat sbeard R 2 50 transportation 1995 Yukon Introduced Plants January 2012 Page 5 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP CAPSTONE MINING CORP MINTO MINE MINTO MINE SURFACE WATER QUALITY MONITORING STANDARD OPERATING PROCEDURES Prepared by Minto Explorations Ltd October 2012 TABLE OF CONTENTS T ese UL 4 AME CIeqmirge 4 Field Stalt ti ieri Ponte te ai EE re A DURS i eee Hc id ee ee 4 utc tree eR Oe i t RE 5 EK ic ED ES 5 4 General Guidelines for Surface Water Quality eren nnne 5 5 Surface Water Sampling Procedures 7 7 Maintenance of Field Instruments
44. Sampling During winter months water quality monitoring stations will freeze over and water quality samples will need to be collected from under snow and or ice Only field staff specifically trained in ice safety will follow these procedures Store and transport chisels axes and augers in clean environments to limit contamination e When sampling on ice always work with a partner and proceed with caution at all times If the ice is unsafe or you are unsure stop work immediately e Ice thickness must be tested with an axe or chisel prior to walking onto a frozen water body and every few steps afterwards Special care must be taken at outflow and inflow areas e Clear snow and loose ice away from the sampling location and drill through the ice with an ice auger either motorized or a hand auger The area around the drill hole should be kept clean and free from potential contamination such as gas dirt from the drill or work boots etc 11 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Once the hole is drilled all the ice chips and slush should be removed from the hole using a slotted spoon etc Allow several minutes for the water to flow freely under the ice allowing potential contaminants to clear before taking a sample Field Notes and Photographic Record In addition to recording water quality field parameters and the samples collected at each site trained field staff must document all r
45. Stability Monitoring Plan Minto Explorations Ltd May 2014 Minto Mine 4 Remove excess water inside the probe and the cable connector Probe is very sensitive and susceptible to vibration DO NOT BANG THE PROBE Use a paper towel to wipe it 5 Apply silicon lubricant to probe and cable connector when needed 6 Connectthe inclinometer cable to the probe by aligning the keyways and threading the connector onto the probe Turn the threaded ring but not the cable Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 7 Turn on the power of the reel A green light indicates that the power is on This energizes the Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 9 Always start with UPPER Wheel in the A direction 10 Lower the probe gently and carefully When it gets close to the bottom lower it very gently to avoid bouncing the probe off the bottom of the hole The cable has aluminum sleeve marks which are spaced at 0 5m and it has a red measure mark with label every 5m Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 11 Lower the probe gently to ensure the bottom of the hole is encountered Slightly passed the designated depth Double check your correct depth by pulling out reel to the next 5m mark and counting back each 0 5 for each increment 12 Place the cable grip on top of the casing and hang the cab
46. Status Reeonnect Monitor Options E B ii V Grid Lines Logging Options i Download Upload Display Add Export Delete Data Readout Options Data sites Records Location CSV Selected Folder ID Location Previous Record Date Time Prev Record Value Units Reading 1 DSP 3A kPa 4 12 A DSP 4A kPa 0 1212 DSP 4B kPa 1 1213 DSP 5A 2 1214 DSP 5B 1 1215 DSP 6A 5 1216 Port status Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 Data Input Spreadsheets for piezometer data input and tracking are stored here X Mine Technical 03 Monitorin Piezo and GTC 4 Open the spreadsheet for the area monitored GO JE Computer gt data min fs 01 06 gt Mine Technical gt 03 Monitoring gt PiezoandGTC gt Organize v Burn New folder 02 Reporting 03 Monitoring a Data Input Information Hubs and Prisms Unclinometers a Instrumentation Maps Ji Piezo and GTC instrumentation Monitoring Archive a GroundProbe Radar a Misc Pit Photo Monitoring Pit Wall Monitoring Logs WSP W12 W13 Water Elevations J 04 Long Term Planning 0 05 Mine Planning n 06 UG Mine Planning Jo 07 Drill amp Blast 7 08 Project Management 09 Administration amp Safety J 11 How Tos J 13 Photos J 14 Geotechnical m Name Data downloads Ground Temp and Piezo 2013 i
47. True Forget me not 3 54 horticulture 2000 7 Forget me not family Plagiobothrys scouleri Scouler s Popcornflower R 3 unknown 6 Verbena family Verbena hastata var scabra Simpler s Joy 4 5 Mint family Dracocephalum thymiflorum Thyme flowered Dragonhead 3 nr agriculture 1949 3 Mint family Galeopsis tetrahit var bifida Bifid Hemp nettle 1 50 revegetation horticulture 1980 4 Mint family Lamium amplexicaule Common Dead nettle R 3 nr horticulture 2007 7 Mint family Stachys pilosa Hedge nettle R 2 unknown 1 family Linaria dalmatica Dalmatian Toadflax X 3 58 unknown 2004 1 Figwort family Linaria vulgaris Butter and Eggs C 1 69 horticulture 1970 5 Figwort family Veronica arvensis Corn Speedwell R 3 unknown 1970 4 Figwort family Veronica longifolia Long leaf Speedwell R 2 nr agriculture horticulture 1980 5 Figwort family Veronica serpyllifolia Thyme leaf Dragonhead R 3 36 unknown 1970 Yukon Introduced Plants January 2012 Page 4 Abundance Persistence Date of first collection 5 Plantain family Plantago aristata Large bract Plantain X 3 unknown 1902 7 Plantain family Plantago major Great Plantain C 1 44 unknown 5 Bedstraw family Galium aparine Sticky willy X 3 agriculture birdseed 2007 6 Bedstraw family Galium palustre Common Marsh Be
48. Weekly M73 6944723 57 384312 30 840 77 2011 05 23 Semi weekly wall buttress M74 AES L Pit south 6944670 85 38440118 838 65 2011 05 23 Semi weekly wall buttress M75 Area L Pit south 6944639 43 384475 64 837 55 2011 05 23 Semi weekly wall buttress M76 Area 6944623 10 384560 12 835 27 2011 05 23 Semi weekly wall buttress M79 Area 1 Pit south 6944846 97 384208 90 847 66 2011 09 04 Semi weekly wall buttress M80 Area LAES SOUR 6944931 70 384256 33 842 06 2011 09 04 Semi weekly wall buttress M81 Arpa BP 6944971 63 384890 13 806 83 2012 05 08 Semi weekly wall buttress SWDO1 Southwest Dump 6944760 85 384077 86 859 07 2011 03 07 Monthly SWDO01A Southwest Dump 6944762 95 384187 87 837 49 2011 03 07 Monthly SWDO02 Southwest Dump 6944570 23 383884 64 870 82 2011 03 07 Monthly SWDO02A Southwest Dump 6944741 35 384108 95 840 78 2011 03 07 Monthly SWDO03A Southwest Dump 6944510 77 383917 28 850 16 2011 03 07 Monthly SWDO04A Southwest Dump 6944161 48 383793 96 861 32 2011 03 07 Monthly Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 ID Area Northing Easting Elevation Date Installed Reading m m m Frequency SWDO05A Southwest Dump 6943939 94 383837 70 869 16 2011 03 07 Monthly WSP1 Water Storage Pond Dam 6945613 04 386480 98 723 31 2011 06 09 Monthly WSP2 Water Storage Pond Dam 6945644 59 386545 46 724 42 2011 06 09 Monthly WSP3 Water Storage Pond Dam 6945551 85 3
49. a larger failure occurred in 2011 after completion of Stage 5 Continued sloughing and creep movement of the south wall led to the design and construction of a waste rock e buttress known as the South Wall Buttress in the pit along the south wall completed in 2013 Instrumentation is currently monitored along the south rim of the pit to detect any continued movement of the wall and buttress Survey hubs Inclinometer The Area 2 Pit is completed to the extents licensed under Phase IV the pit will be extended to the south as part of Phase V VI As part of Phase IV a portal was created at the bottom of the pit to access an underground ore zone Monitoring is therefore ongoing The highwall crest is monitored via survey hubs to measure large scale stability of the wall The highwall is monitored by realtime radar based slope stability measurements and a program of weekly inspections and prism readings monitors those portions of the wall not actively scanned by the radar Survey hubs Prisms Radar Mining of the Area 118 Pit commenced in January 2014 Survey hubs are monitored along the northeast crest of the pit between Area 118 and Area 2 In pit monitoring currently consists of regular inspections Prisms will be installed along catch benches as mining progresses Survey hubs Prisms Tailings placement was completed in November 2012 subsequently a layer of overburden was placed over the stack as part of progressive reclamation acti
50. adequate QA QC is being incorporated into the program 3 Safety Safety is the most important component of any field program All staff must be aware of all potential safety hazards and personal protective equipment PPE requirements for any task they are completing At no time should field staff feel unsafe and all questions or concerns about safety must be brought to the attention of a supervisor It is crucial that monitoring activities are completed in a safe manner This includes having first aid equipment communication equipment and wearing proper footwear and gloves for the job It also means that sampling is frequently completed by two field staff Field staff and supervisors should review all appropriate Job Hazard Analyses and Safe Work Procedures to ensure that the safety related elements of all tasks related to sampling are understood 4 General Guidelines for Surface Water Quality Monitoring Water samples field measurements and observation of site conditions are collected from the same area for every sampling event whenever possible to achieve representative results over time MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Standard field forms are used to document all the required details for each sampling event including thorough descriptions of unusual conditions and variations to the sample site or procedure This data is stored in the Minto Water Quality Database The following procedures pra
51. boots etc 11 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Once the hole is drilled all the ice chips and slush should be removed from the hole using a slotted spoon etc Allow several minutes for the water to flow freely under the ice allowing potential contaminants to clear before taking a sample Field Notes and Photographic Record In addition to recording water quality field parameters and the samples collected at each site trained field staff must document all relevant environmental conditions observed at the time of sampling and any unusual occurrences Deviations from standard protocols whether deliberate or accidental e g samples taken from a different location due to safety or access considerations procedures used that differ from those outlined in this SOP must be recorded in the field notes Standard field forms are used as much as possible to ensure all the required information water samples and field parameters are collected A current copy of the Minto Water Quality Field Form is provided in Appendix 2 If a field notebook is used as a minimum the field notes must include the following information e Station name date time and names of field staff present e Weather conditions and observations on the physical conditions at the sampling location e GPS coordinates for new sites or when the sampling location has changed more specific to winter sampling and Details of any ot
52. concentrations are less than 0 10 ug L in 12 consecutive samples Acute lethality testing on Rainbow Trout and Daphnia magna is conducted at least once per month during effluent discharges with samples taken greater than 15 days apart Government of Canada 2002 Acute lethality testing is also required immediately if a deposit occurs outside the normal course of events and twice per month if a sample of effluent is determined to be acutely lethal Conversely if 12 acute lethality tests conducted on effluent are determined to be not acutely lethal the testing frequency can be reduced to once per quarter Government of Canada 2002 Reporting of the water quality results and discharge volumes is required quarterly and annually to Environment Canada under the Regulatory Information Submission System RISS Table 2 3 Metal Mine Effluent Monitoring Program Requirements and Frequency Water Quality Monitoring Stations Monitoring Frequency Analytical Parameters 1 Effluent Volume Weekly 2 Water Quality in situ field parameters physical parameters nutrients and total and dissolved W3 Compliance Point metals 3 Water Quality Radium 226 and acute toxicity Quarterly Monthly tests on both Daphnia magna and Rainbow during discharge trout Oncorhynchus mykiss 2 3 Groundwater Monitoring Program The objective of the Groundwater Monitoring Program is to monitor potential impacts on groundwater from the mine p
53. etc The Minto Mine Hydrology SOP follows methods and procedures described in Guidance Document for Flow Measurement of Metal Mining Effluents Environment Canada 2001 and Manual of British Columbia Hydrometric Standards RISC 2009 This document is intended for Minto Mine employees familiar with the location of hydrology stations and the data collection methods outlined in this document Along with on the job training this SOP will to ensure that surface water hydrology data at Minto Mine is collected consistently and the data produced is reliable and representative 2 Responsibilities The quality of flow measurements and water quantity data collected at Minto Mine is dependent on the staff involved and the attention given to field procedures field equipment and quality control protocols It is crucial that flow measurements be carried out in a consistent manner with the appropriate equipment to generate the most accurate results The following is a typical allocation of responsibilities associated with the collection of surface water hydrology data at Minto Field Staff Field staff must have the appropriate knowledge and training to take precise flow measurements and collect representative data while minimizing field error as much as possible This includes following all procedures correctly and consistently correct use of field equipment and completion of detailed field notes Field staff are responsible for coordinating all station
54. for collecting Survey hubs precipitation and surface water runoff at the site Maximum depth of water at the face of Thermistors This dump stores waste released during the mining of the first three stages of the Main Main Waste pit The dump is founded on bedrock Movement below the toe is monitored by a single Dump I Inclinometers MWD inclinometer Table 5 2 Physical Inspection Roles and Responsibilities Role Responsibilities e Collect instrumentation data at specified frequencies e Input data into monitoring spreadsheets databases e Internal reporting of monitoring data e Maintain equipment e QA QC of data collection e Ensure compliance with license requirements Geotechnical Engineer e Monthly quarterly and annual water use license WUL reporting e Visual inspections at specified frequencies e Review and update Physical Monitoring Plan Geotechnical technicians e Review annual WUL QML report Chief Engineer na e Ensure compliance with license requirements June 2014 32 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 6 Aquatic Environmental Monitoring Program The Aquatic Environmental Monitoring Program at Minto Mine is comprised of a Biological Monitoring Program and an Environmental Effects Monitoring Program The Biological Monitoring Program is a requirement of WUL clause 86 and outlines the monitoring program for sediment periphyto
55. gt Ccapstone MINTO MINE OPERATED BY MINTO EXPLORATIONS LTD Minto Mine Environmental Monitoring Surveillance and Reporting Plan Prepared by Minto Explorations Ltd Minto Mine June 2014 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Table of Contents LEM CPUS n 1 1 1 Project DescriptiOD Eu seedeheens 2 2 Water Monitoring Program ccciccesccscsssccovsccccssessssccacseosssnsstesctessoosssssetacosecscasssassccosstscadacassessesssees 5 2 1 Surface Water Surveillance Program c sccccccccssssssssceeceeesesesesaeeeeeessessesaaaeceeecsseeseseaeeeeeeeseuseaaeas 9 2 2 Metal Mine Effluent Monitoring 12 2 3 Groundwater Monitoring rennen 12 2 4 Seepage Monitoring 16 2 5 Minto Creek Detention Structure MCDS Seepage Monitoring 19 2 5 1 Physical Monitoring 19 2 5 2 ISTFUMMENTAUION 19 2 5 3 Groundwater Quality Monitoring 20 2 5 4 Triggers and Response S soinen enee eaa esii ee 20 3 Geochemical Monitoring Program sssssccoscsssssscessssesoeescosoessssccsensssecoenssseccessscecoessssconnsssscoenss
56. including field filtration and preservation of the dissolved metals field blank 3 6 Reporting Results of the groundwater monitoring program will be included as part of the annual report for WUL QZ96 006 The groundwater monitoring program summary will also reference results of thermal and piezometric monitoring carried out under other site monitoring plans 4 References ASTM 2007 Standard Guide for Sampling Ground Water Monitoring Wells Designation D4448 01 Reapproved 2007 Minto Explorations Ltd 2011 Groundwater Monitoring Plan VERSION 2011 01 Dated Sept 2011 SRK 2008 Waste Dump Overburden Drilling Minto Mine Yukon Prepared for Minto Explorations Ltd May 2008 SRK 2012 Monitoring Well Installation Program 2011 Prepared for Minto Explorations Ltd February 2012 SRK 2013 2012 Minto Mine Groundwater Monitoring Well Installation Report Prepared for Minto Explorations Ltd February 2013 383000 384000 385000 386000 387000 6946000 Water Storage Pond 6945000 Dry Stacl Tailings Storage 7 edi Facility f Overburden io EVE EET 6944000 Legend MP Well Functional MP Well Non functional 4 i ter with thermistor Functional Ridg top South Piezometer wi ermistor Functiona Drivepoint Functional CAPSTONE i Notes MINING CORP SiteMap 500 Meters 1 Data presented in NAD 1983 UTM Zone 8N MINTO MINE Showing Well Locations 2 Base a
57. installations at the Main Water Dam are excluded from this table 3 Groundwater Monitoring Plan 3 1 Monitoring Objectives As stipulated in WUL QZ96 006 this groundwater monitoring plan is to provide for monitoring of potential impacts on groundwater from the mine components including but not necessarily limited to e Dry Stack Tailings Storage Facility e Mill area e Main Pit e Area 2 Pit e Main Waste Dump e Southwest Waste Dump and the e Water Storage Pond An additional objective of this groundwater monitoring plan is to provide for the development of baseline hydrogeological conditions in areas where future mine components are being planned This groundwater monitoring plan contains provision for baseline monitoring of the following planned future mine components e Minto North Pit e Ridgetop North Pit e Ridgetop South Pit Monitoring well locations are shown in Figure 1 3 2 Monitoring Requirements Monitoring will be comprised of operational and baseline monitoring Table 4 summarizes the operational monitoring requirements and Table 5 summarizes the baseline monitoring requirements All monitoring systems have been installed down gradient of the expected final design footprint of the respective mine components 3 3 Sampling Protocol Groundwater samples will be collected according to the procedures summarized in ASTM D4448 01 Standard Guide for Sampling Ground Water Monitoring Wells ASTM 2007
58. manufacturers specifications The on site lab commenced testing samples in March 2012 and began establishing Standard Operating Procedures SOPs and a program The SOPs that formed the basis of the lab QA QC program are e Lab QA QC Guidelines SOP e AAS GF Set up and Operation SOP e Replacing and or Aligning a Hallow Cathode or D2 Lamp SOP e Replacing a Graphite Tube and Aligning the graphite furnace SOP e Alignment of the PSD 120 SOP Dilutions and Standards SOP e Preparation of Dissolved and Total Metals Cu Al Cd SOP and e Preparation of Dissolved and Total Selenium SOP and Total Suspended Solids SOP Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine All of the aforementioned SOPs are stored in the on site lab for immediate reference The SOPs are updated as required to maintain consistency with manufacturers specifications 9 5 1 On site Lab Verification The intent of on site lab verification is to demonstrate the ability of the Minto Mine on site water quality laboratory to produce results from water analysis that are reasonably comparable to those results obtained at an accredited external lab and verify that on site results are reliably reported at or below WUL discharge criteria for most metals The verification of the on site laboratory was initiated in March 2012 to demonstrate compatibility between the results obtained at the Minto Mine on site laborator
59. of Stage 5 Continued sloughing and creep Survey hubs movement of the south wall led to the design and construction of a waste rock buttress Inclinometer known as the South Wall Buttress in the pit along the south wall completed in 2013 Instrumentation is currently monitored along the south rim of the pit to detect any continued movement of the wall and buttress Area 1 Pit Main Pit The Area 2 Pit is completed to the extents licensed under Phase IV the pit will be extended to the south as part of Phase V VI As part of Phase IV a portal was created at the bottom of the pit to access an underground ore zone Monitoring is therefore Survey hubs ongoing The highwall crest is monitored via survey hubs to measure large scale stability Prisms of the wall The highwall is monitored by realtime radar based slope stability Radar measurements and a program of weekly inspections and prism readings monitors those portions of the wall not actively scanned by the radar Area 2 Pit Mining of the Area 118 Pit commenced in January 2014 Survey hubs are monitored along the northeast crest of the pit between Area 118 and Area 2 In pit monitoring currently Survey hubs Area 118 Pit consists of regular inspections Prisms will be installed along catch benches as mining Prisms progresses Tailings placement was completed in November 2012 subsequently a layer of overburden was placed over the stack as part of progressive reclamation activities
60. operating procedures and data review Ongoing staff training and inspections of staff especially new hires performing data collection activities help to ensure the results are consistent representative and high quality Standardized management of data collected in the field is important in hydrological monitoring programs Standard protocols and systems make the task of data processing easier and less likely prone to error Processing of data often involves returning to the original field notes to cross check suspicious values or to analyze site conditions that might have been responsible for anomalies in the logger records Therefore it is easiest to evaluate the quality of water quantity data successfully when supportive values and observations have been well documented The steady improvement of quality assurance protocols involves developing more detailed and program specific verification processes and automated checks as well as peer reviews and audits by external professionals on a regular basis Effective quality assurance will identify potential problem areas and necessary corrections to procedures and data management and facilitates evaluation and improvement of the monitoring program Quality Assurance on Data Examination and evaluation of field data and data entry is an integral part of quality control All data should be reviewed to determine if it is comparable to past recordings While it is not possible to check all aspects of inp
61. set of winter in September Monthly inspection Monthly during non winter months Water quality analysis for in situ field Groundwater sampling parameters physical parameters nutrients and Semi annual spring amp fall dissolved metals As part of the Phase V Vi licencing Minto suggests that bi annual inspections be reduced to once per year and to be completed after the spring thaw period 2 5 1 Physical Monitoring Physical monitoring and reporting on the MCDS is performed on a bi annual basis as part of the annual physical inspections The annual physical inspection is completed after the spring thaw period in May June of each year and again prior to the on set of winter in September and is done by a qualified professional engineer licensed to practice in the Yukon In conjunction with the annual physical inspections Minto performs a monthly inspection during non winter months based on the inspection checklist provided in Figure 2 6 The purpose of the inspection is to identify early signs of settlement erosion and piping as well ensuring the spillway remains clear of debris Any signs of physical degradation of the MCDS will be passed onto a qualified engineer for further inspection and remedial recommendations with follow up actions conducted as recommended 2 5 2 Instrumentation The current MCDS is a temporary installation pending the approval and construction of the extended Mill Valley Fill Extension the
62. should be collected from the stream bank reaching as far out into the stream as safely possible When field staff are able to safely wade into a stream the sampling location should be approached from downstream Samples are always collected upstream of the sampler The following surface water sampling procedures are followed by trained Minto staff Locate the station using a station map or GPS coordinates then select an area representative of the stream to collect the sample Clearly label all sample bottles with station name date time 24 hour clock and analysis code provided in Table 1 Put on clean nitrile gloves prior to collecting the sample Handle sample bottles and caps appropriately to avoid contact with internal surfaces Plunge the bottle under the water with the mouth facing upstream away from the sampler s hand MINTO EXPLORATIONS LTD All bottles will be triple rinsed MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Ensure that samples requiring filtering are rinsed with filtered water only e Collect the water sample until the bottle is full and remove it from the water Pour some water out to make room for preservatives if needed Use new syringes and filters for every station Filter at the sampling location whenever possible and otherwise from a sub sample taken in a separate container in a clean environment as soon as possible after sample collection e Add preservatives to the required
63. vegetation study plots The first phase i e information gathering of a constructed wetland treatment system study took place in 2013 future phases will include the construction of pilot scale testing at a laboratory and eventually pilot scale testing on site The processes for identifying optimal reclamation design is based on the BMPs discussed in guidance documents such as the Mining Waste Treatment Technology Selection Website Interstate Technology Regulatory Council 2010 and the Yukon Revegetation Manual Practical Approaches and Methods Mathues amp Omtzigt 2013 Further information on reclamation research can be found in the Minto Mine Reclamation and Closure Plan Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 9 Quality Assurance and Quality Control A primary objective of quality assurance and quality control QA QC programs is to ensure that data collected analyzed and evaluated through environmental monitoring programs at Minto Mine is representative and of high quality and to provide confidence in the data collected for all environmental monitoring and sampling programs QA QC procedures at Minto Mine have been designed after generally recognized QA QC protocols This section summarizes the use of duplicate field and trip blanks on site laboratory and field equipment calibration external and on site laboratory QA QC on site laboratory verification and a description of QA QC
64. visits in accordance with the requirements of the current WUL including sampling locations sampling frequency etc Staff performing station visits shall ensure that all site conditions and other required information are clearly documented and that all quality assurance and quality control QA QC protocols are being followed Field staff must be experienced in the operation and maintenance of all field instruments and the equipment used for measuring water quantity data They are responsible for maintaining equipment and identifying equipment malfunction Field staff are also responsible for performing data entry related to surface water hydrology on site MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Supervisors Supervisors are responsible for ensuring field staff understand the requirements of the WUL and that all procedures and protocols are being followed and documented Supervisors are responsible for ensuring data collection and data management procedures are being carried out consistently and identifying variance from standard procedures Supervisors are responsible for providing appropriate levels of training to all field staff and ensuring that all field staff are proficient to carry out their responsibilities or are adequately supervised This is especially important when field staff are processing data and completing field activities such as station installs and surveying It is the responsibility of supervisors
65. water storage pond and dam are located east of the mine along Minto Creek The dam was constructed in 2006 as a clay core water retention dam for collecting Survey hubs Water Storage Pond Dam WSP precipitation and surface water runoff at the site Maximum depth of water at the face Thermistors of the dam is approximately 15 m Piezometers This dump stores waste released during the mining of the first three stages of the Main Main Waste Dump pit The dump is founded on bedrock Movement below the toe is monitored by a Inclinometers MWD single inclinometer Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 3 Design References Table 2 Design Documents and Monitoring Inspection Guidance Documents Structure Area 1 Pit Main Pit Area 2 Pit Area 118 Pit Dry Stack Tailings Storage Facility DSTSF Mill Valley Fill Extension MVFE Ice rich Overburden Dump IROD Mill Water Pond MWP Minto Creek Detention Structure MCDS Reclamation Overburden Dump ROD Design Reports Area 1 South Wall Buttress Design Report Minto Mine Yukon EBA File W141010668 012 July 2011 Prefeasibility Geotechnical Evaluation Phase IV Minto Mine SRK December 2009 Review of Minto Area 2 West Wall Stability SRK September 11 2012 Review of Minto Area 2 West Wall Stability April 2013 SRK April 18 2013 Review of Minto Area 2 West Wall Stability Sep
66. while discharging DOC Dissolved organic carbon Cdw Continuous when dewatering 96 hr LT50 LT50 Rainbow trout static bioassay 96 hrs at 10096 pH non adjusted WL surface water level elevation 48 hr LT50 LT50 Daphnia magna static bioassay 96 hrs at 100 pH non adjusted TV Track tailings volume CD 7d chronic toxicity Ceriodaphnia dubia 7 day test June 2014 11 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 2 2 Metal Mine Effluent Monitoring Program The Metal Mine Effluent Regulations MMER Government of Canada 2002 outline requirements for monitoring and reporting of discharged effluent volume and quality under the MMER to Environment Canada The Metal Mine Effluent Program aims to maintain compliance with the MMER and the program will be revised should regulation amendments occur Specifically the Metal Mine Effluent Program requires sampling at station W3 downstream of the end of pipe discharge Figure 2 1 with monitoring requirements outlined in Table 2 3 Effluent water quality samples are collected weekly during discharge and the sub lethal toxicity sample is collected quarterly or monthly during discharge Water quality samples are analyzed for hardness alkalinity conductivity temperature and for the concentrations of aluminum cadmium iron mercury molybdenum selenium ammonia and nitrate Mercury analysis can be discontinued if the
67. 0 12 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Continuous Water Level and Inline Pipe Flow Meter Data Continuous water level readings from pressure sensors and inline flow meters are downloaded and compensated as needed using the manufacturer s software At this time instructions for compensating this data are not included in this SOP All continuous water level readings from pressure sensors require reference to the water level during station visits Therefore staff gauge readings must be accurate and always documented including the time of the observation Basically water level data is compensated by calculating the difference between the pressure sensor water depth and staff gauge reading for each point in time and the average of all these differences can be applied to the entire data record as a single offset adjustment Volumetric Measurements To calculate discharge from a volumetric measurement the following formula is used Discharge Volume of container litres Average time to fill seconds 9 Quality Assurance and Quality Control The Minto Quality Assurance and Quality Control plan has been created to provide confidence in the data collected for all environmental monitoring and sampling programs QA QC is an integral component to quality surface water hydrology data Quality Control Quality control protocols are the set of routine procedures and methods designed to achieve and maintain a recogniz
68. 00 CAPSTONE MINING CORP MINTO MINE OPERATED BY MINTO EXPLORATIONS O ACCESS 386 000 387 000 MCGINTY CREEK WATER QUALITY CHARACTERIZATION MAY 2009 JULY 2012 FIGURE 2 1 MCGINTY CREEK MONITORING STATION LOCATIONS JUNE 2013 Minto gis mxd Overview_Maps 04 WaterQuality 02 McGuinty Creek Monitoring_Stations_May_2013 mxd Last edited by jlindeman 21 06 2013 16 25 PM 6 954 000 6 953 000 6 952 000 6 951 000 6 950 000 6 949 000 6 948 000 6 947 000 6 946 000 6 945 000 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 2 1 Surface Water Surveillance Program The objective of the Surface Water Surveillance Program is to monitor surface water quality and hydrological conditions at stations within the operational mine area downstream stations which are influenced by mine effluent discharge and downstream reference stations which are not exposed to effluent Water quality and hydrology monitoring is conducted in accordance with the requirements outlined in the WUL QZ96 006 with monitoring variations associated Phase V VI facilities and activities as reflected in Table 2 2 Monitoring areas can generally be characterized as sites at or near the active mine site and associated facilities and on Minto Creek the Yukon River McGinty Creek and non impacted drainages Sampling locations and coordinates are updated annually as part of the WUL QZ
69. 010 01 28 Monthly SDT 4 Southwest Dump 6944163 62 383783 54 860 99 2223 16 13 1 2010 01 30 Monthly 10 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 4 Vibrating Wire Piezometers Vibrating wire piezometer strings are used to measure pore water pressure profiles in boreholes They consist of mutltiple vibrating wire sensors installed on PVC pipe in grouted boreholes RST vibrating wire piezometers are installed on site and data is collected with an RST VW2106 readout unit Table 8 Vibrating Wire Piezometers ID Area Northing Easting Elevation Sensor No Sensor Date Reading m m m Elevation Installed Frequency m DSP 5A VW24851 765 47 DSP 5 Dry Stack Tailings 6944769 385713 791 47 2013 04 16 Monthly DSP 5B VW24853 761 47 DSP 6A VW24850 769 56 DSP 6 Dry Stack Tailings 6944900 385539 787 66 2013 04 05 Monthly DSP 6B VW24852 765 56 WDP 2 Water Storage Pond 6945632 386545 701 67 WDP 2 VW7212 701 67 2007 11 04 Monthly WDP 3A Water Storage Pond 6945618 386498 712 62 WDP 3A VW7557 712 62 2007 11 28 Monthly WDP 3 Water Storage Pond 6945609 386500 712 60 WDP 3 VW7202 712 60 2007 11 12 Monthly WDP 4 Water Storage Pond 6945609 386500 702 60 WD 4 VW7210 702 60 2007 11 14 Monthly WDP 5 Water Storage Pond 6945605 386526 712 35 WDP 5 VW7204 712 35 2007 11 20 Monthly WDP 6 Water Storage Pond 6945605 386526
70. 120 Phone Ph 604 684 8894 Fax 604 688 2120 Location Yukon E mail E mail minto environment mintomine com Sampled by REGULATORY REQUIREMENTS SERVICE REQUESTED CSR Regular Turn Around Time TAT CCME 5 days for most tests BC Water Quality RUSH Please contact the lab Other 1 Day Day C Day E 0 DRINKING WATER Date Required lt SPECIAL INSTRUCTIONS Return Cooler 7 Ship Sample Bottles please specify Field Filtered Diss d Organic Carbon Total Organic Carbon N N a Number of Containers LIT TITEL Mp ee ee n mo c qp rr ima pL TE FE __ ee EE i ER RR RT RR ERG ERE ERG E RE ER ES DR GR E E 80 Print name and sign Print name and sign Laboratory Use Only Relinquished By _ Date yy mm dd Time 24hr Received by Date yy mm dd N Time 24 hr Time E on Receipt Custody Seal IT IS THE RESPONSIBILITY OF THE RELINQUISHER TO ENSURE THE ACCURACY OF THE CHAIN OF CUSTODY RECORDS CHAIN OF ae MAY RESULT IN ANALYTICAL LAYS frase BBY FCD 00077R2 C Maxxam Analytics Success Through Science Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Appendix 2 Minto Mine Surface Water Hydrology Monitoring Standard Operating June 2014 CAPSTONE MINING CORP MINTO MINE MINTO MINE SURFACE WATER HYDROLOGY STANDARD O
71. 134 135 136 137 138 133 ol 1 Ready a gt gt Wm X ful Date modified 2013 09 27 10 51 2013 11 20 7 20 AM 2013 09 28 4 49 PM 2013 11 16 311 PM 2013 11 17 6 45 AM 2013 09 27 9 25 AM 2013 11 21 9 33 AM 2013 11 16 5 53 PM 2013 11 17 8 41 AM 2010 05 27 5 19 PM Type File folder File folder File folder File folder Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Size 1 650 413 KB 2 894 1 017 KB 3 842 KB 107 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 6 Inanew row input the date time barometric pressure B unit and temperature readings for each instrument STC Pi Home Insert Page Layout Formulas Data Review View Cut B amp Cu Tahoma 110 lA A Wrap Text General a a M cs e aste E 0 4 o is df Format Painter Bgiu a Merge amp Center fo 60 Eo Clipboard a Font P Alignment a Number 144 p A B D u x 2 AL MINTO MINE DRY STACK TAILINGS STORAGE FACILITY 3 4 Tab Use Instructions Note 5 1 Enter Date Barometer readings obtained fron 6 2 Enter Time VW Piezometer readings obtained 7 3 Enter Reading B and Temp Reading to corresponding piezo RED indicates assumed valu
72. 1980 5 Grass family Secale cereale Common Rye R 3 nr agriculture transportation 1949 5 Grass family Setaria viridis Green Bristle Grass X 3 nr transportation 1998 4 Grass family Thinopyrum intermedium Intermediate Wheat Grass R 2 transportation 1999 2 Grass family Thinopyrum ponticum Tall Wheat Grass R 1 nr agriculture 2000 5 Grass Family Triticum aestivum Common Wheat X 3 nr agriculture transportation 1943 5 Grass family Vulpia myuros Rat tail Six weeks Grass X 3 nr unknown 1902 5 Nettle family Urtica urens Burning Nettle X 3 nr unknown 1904 5 Goosefoot family Atriplex patula Spear Saltbush X 3 nr unknown 5 Knotweed family Fagopyrum esculentum Buckwheat X 3 nr agriculture birdseed 1997 2 Knotweed family Polygonum achoreum Leathery Knotweed U 1 transportation 1997 y Knotweed family Polygonum buxiforme Prairie Knotweed C 1 45 transportation 3 Knotweed family Fallopia convolvulus Eurasian Black bindweed C 1 50 horticulture 1975 5 Knotweed family Polygonum fowleri Fowler s Knotweed X 3 unknown 1943 6 Knotweed family Persicaria maculosa Spotted Lady s Thumb F 4 47 3 Knotweed family Rheum rhaponticum Rhubarb C 1 nr agriculture 1999 4 Knotweed family Rumex acetosella Sheep Sorrel R 2 51 unknown 1994 3 Knotweed family Rumex crispus Curled Dock R 2 48 unknown 1980 3 Knotweed family Rumex longifolius Door yard Dock R 2 48 transportation 1980 3 Knotweed family Rumex pseudonatronatus Field Dock R 2 nr transportation 2004 Yukon Introduced Plants January 2012 Pa
73. 23 3 1 Acid Base Accounting ABA Monitoring 23 3 1 1 Internal On site Monitoring osason iosia innan ranas 23 3 1 2 External Off site Verification eene 23 3 1 3 Summary of Sampling and Analytical Frequency cesses nennen 24 3 1 4 ABA Program 24 3 1 5 Overburden and Waste enn 25 3 1 5 1 Open Pit Waste oe tete i ed hr iit i adito ene Ong borea 25 3 1 5 2 Underground Development nnne nennt nnns annee nian 26 3 1 6 TAINS Solids yeae 26 3 1 7 Construction Materials terrere an E ange PREX XML Fr eee eee eB EE neu reus 26 3 2 Waste Rock Management Verification Program nnne nnn nnne 27 4 Meteorological Monitoring Program eeee ee ee eene eene nennen st ness 29 4 1 Climate Monitoring Program 29 4 2 SNOW Survey UU DTI 29 5 Physical Monitoring Program isssccccssscsecccsscesccsscsseccccsosscedbessvesdobseccocsbscsedesossscetbossvecooess
74. 3 79 824 17 2011 03 07 Monthly DSSH 06 Dry Stack Tailings 6944971 61 385553 16 773 83 2010 04 06 Weekly DSSH 10 Dry Stack Tailings 6944992 62 385807 51 763 12 2010 04 06 Weekly DSSH 12 Dry Stack Tailings 6944933 16 385704 30 773 99 2010 04 06 Weekly DSSH 14 Dry Stack Tailings 6944920 27 385606 55 782 88 2012 04 21 Weekly DSSH 15 Dry Stack Tailings 6944942 65 385503 43 782 61 2012 04 21 Weekly DSSH 17 Dry Stack Tailings 6944980 74 385896 26 772 07 2012 04 21 Weekly DSSH 18 Dry Stack Tailings 6945069 81 385522 12 771 39 2014 02 28 Weekly DSSH 19 Dry Stack Tailings 6945085 22 385642 14 769 16 2014 02 28 Weekly DSSH 20 Dry Stack Tailings 6945137 83 385730 25 765 83 2014 02 28 Weekly DSSH 21 Dry Stack Tailings 6945074 87 385735 67 767 74 2014 02 28 Weekly DSSH 22 Dry Stack Tailings 6945023 66 385710 13 770 65 2014 02 28 Weekly DSSH 23 Dry Stack Tailings 6944599 38 385491 13 797 40 2014 02 28 Weekly DSSH 24 Dry Stack Tailings 6944757 90 385712 10 792 07 2014 02 28 Weekly DSSH 25 Dry Stack Tailings 6944753 94 385894 65 793 38 2014 02 28 Weekly M73 6944723 57 384312 30 840 77 2011 05 23 Semi weekly wall buttress M74 AES L Pit south 6944670 85 38440118 838 65 2011 05 23 Semi weekly wall buttress M75 Area L Pit south 6944639 43 384475 64 837 55 2011 05 23 Semi weekly wall buttress M76 Area 6944623 10 384560 12 835 27 2011 05 23 Semi weekly wall buttress M79 Area 1 Pit south 6944846 97 384208 90 847 66 2011 09 04 Semi weekly wall buttress M
75. 3 Invasive Plants Reporting Should any invasive plant species listed by the Yukon Invasive Species Council be encountered Minto will report the findings to Yukon Government by e mail invasives gov yk ca or to the Northern Tutchone Regional Biologist 867 996 2162 7 2 Wildlife Monitoring Program The Minto Mine Wildlife Protection Plan establishes guidelines for minimizing wildlife disturbance at the Minto Mine site and along the development corridor and has developed a monitoring program to yield information about wildlife use in the area Monitoring program results will be used in closure planning activities and will help refine closure objectives related to ensuring unobstructed passage through the area by wildlife The activities under the Wildlife Monitoring Program are summarized in Table 7 2 including the area monitored and the frequency of monitoring Wildlife monitoring logs are kept in the Environmental Department office and stored in an Excel spreadsheet An example Wildlife Sighting Log form is provided in Figure 7 1 Interactions with dangerous wildlife are tracked through completion of a Nuisance or Potentially Dangerous Animal Observation Form provided in Figure 7 2 Wildlife Sighting Logs are posted at all main offices and around camp and all staff are encouraged to record all wildlife observations These are collected regularly and entered into an Excel spreadsheet A review of the data is conducted annually in order to build
76. 386114 98 780 13 85 2010 11 12 Bi monthly DSI 14 Dry Stack Tailings 6945107 35 385579 80 768 23 62 53 2013 04 08 Bi weekly DSI 16 Dry Stack Tailings 6944843 36 385919 57 792 51 354 92 5 2013 04 15 Bi weekly DSI 17 Dry Stack Tailings 6945034 51 385963 96 764 53 352 57 2013 04 09 Bi weekly DSI 18 DryStackTailings 6945090 95 386132 08 764 60 322 101 5 2013 04 08 Quarterly 051 19 Dry Stack Tailings 6945218 17 386262 61 747 76 321 43 5 2013 04 08 Quarterly DSI 20 Dry Stack Tailings 6944989 60 385394 56 780 47 35 32 5 2013 04 19 Bi weekly 051 21 Dry Stack Tailings 6944587 73 385679 34 793 15 22 27 2013 04 21 Bi weekly moi 2 Area Pit Main 94501 08 38421720 858 67 93 50 5 2010 02 10 Monthly Waste Dump SDI 1 Southwest Dump 6944770 08 384174 61 836 46 0 59 5 2010 02 10 Bi weekly SDI 3 Southwest Dump 6944591 11 383966 00 847 42 90 46 5 2010 02 11 Bi weekly SDI 5 Southwest Dump 6944328 87 383823 17 860 57 2 59 5 2011 10 24 Bi weekly Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 2 Survey H ubs Survey hubs are used to monitor surface movement of structures and are comprised of steel posts cemented into waste rock or bedrock and equipped with a threaded base to which a high precision RTK corrected GPS instrument is attached The GPS currently used on site is a Trimble R8 Table 6 Survey Hubs
77. 46 M A N DOC W47 Cdw W WL M M A N W50 M Wd M Wd A N DOC Wd M M M MC 1 M Wd M Wd A N DOC WTP Wd Wd A N DOC Wd W51 Cdw W WL M M A N W52 W WL TV M M A N W53 Cdw W WL M M A N W54 C M M A N W55 M M M A N C4 M M M A N DOC June 2014 10 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Station Water Field External Analytical Internal 96 Hr 48 Hr Level Parameters Suite Suite LT50 LT50 Chronic C10 M M M A N DOC 2 z MN Cdw W WL M M A N MN 0 2 M M M A N MN 0 5 M M M A N s MN 1 5 C M M A N 2 MN 2 5 C MN 4 5 M A N UG 1 Cdw M M A N UG 2 Cdw M M A N UG 3 Cdw M M A N x UG 4 Cdw M M AN C Continuously W Weekly Wd Weekly while discharging A Physical parameters conductivity total suspended solids total dissolved solids sulphate ICP scan total metals ICP dissolved metals N Nutrients Ammonia N Nitrate N Nitrite N hardness alkalinity M Monthly Field parameters in situ pH conductivity temperature Dissolved Oxygen Mnf Monthly when not frozen Internal lab parameters copper aluminum cadmium selenium ammonia nitrite nitrate and total suspended solids Md Monthly
78. 701 50 WDP 6 VW7214 701 50 2007 11 20 Monthly WDP 7 Water Storage Pond 6945605 386526 689 20 WDP 7 VW7208 689 20 2007 11 20 Monthly WDP 8 Water Storage Pond 6945554 386542 693 10 WDP 8 VW7200 693 10 2007 11 18 Monthly WDP 9 Water Storage Pond 6945554 386542 687 93 WDP 9 VW7206 687 93 2007 11 18 Monthly WDP 10 Water Storage Pond 6945554 386542 676 17 WDP 10 VW7211 676 17 2007 11 18 Monthly WDP 11 Water Storage Pond 6945523 386551 712 96 WDP 11 VW7201 712 96 2007 11 16 Monthly WDP 12 Water Storage Pond 6945523 386551 694 64 WDP 12 VW7209 694 64 2007 11 16 Monthly WDP 13 Water Storage Pond 6945533 386578 684 55 WDP 13 VW7205 684 55 2007 11 07 Monthly SDP 2A VW12912 843 414 SDP 2 Southwest Dump 6944595 06 383971 30 843 41 2010 01 31 Monthly SDP 2B VW12911 842 714 SDP 3A VW12906 854 266 SDP 3 Southwest Dump 6944333 87 383824 67 854 27 2010 01 28 Monthly SDP 3B VW12907 853 566 SDP 4A VW12908 858 494 SDP 4 Southwest Dump 6944163 62 383783 54 858 49 2010 01 30 Monthly SDP 4B VW12909 857 794 11 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 7 Procedures and Documentation 7 1 Data Collection Schedule Data is collected by geotechnical technicians in the mine technical department A regular schedule is followed and is used for tracking compliance with license requirements The schedule is stored in the following location X Mine Technical 03 Monitoring Monitoring To Do Frequency xlxs 7 2 Data Collecti
79. 8 Quality Assurance Quality Control Task observations are routinely performed on monitoring technicians to verify data collection is consistent with the designed procedures These reviews are documented as Job Observations Data collection equipment is returned to the manufacturers as per their recommended calibration schedules typically annually All data is reviewed and summarized by the Geotechnical Engineer monthly as part of the monthly Water Use Licence submission 12 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 9 Reporting Regular processing and review of monitoring data is completed and presented in the following documents as mandated in QZ96 006 Amendment 8 Table 9 Reporting Frequency Submission Pit Wall Inspection Report Minto Mine Water Licence QZ96 006 Monthly Report Clause 11 Minto Mine Water Licence QZ96 006 Quarterly Report Clause 15 Minto Mine Water Licence QZ96 006 Annual Report Clause17 Semi Annual Geotechnical Review Report Clause 82 Weekly Monthly Quarterly Annually Semi annually after spring melt May June and before freeze up September Submitted internally every Sunday Submitted to Yukon Water Board maximum 30 days following each month Submitted to Yukon Water Board maximum 90 days following each quarter Submitted to Yukon Water Board by March 31 each year Submitted to Yukon Water Board within 45 days of
80. 80 Area LAES SOUR 6944931 70 384256 33 842 06 2011 09 04 Semi weekly wall buttress M81 Arpa BP 6944971 63 384890 13 806 83 2012 05 08 Semi weekly wall buttress SWDO1 Southwest Dump 6944760 85 384077 86 859 07 2011 03 07 Monthly SWDO01A Southwest Dump 6944762 95 384187 87 837 49 2011 03 07 Monthly SWDO02 Southwest Dump 6944570 23 383884 64 870 82 2011 03 07 Monthly SWDO02A Southwest Dump 6944741 35 384108 95 840 78 2011 03 07 Monthly SWDO03A Southwest Dump 6944510 77 383917 28 850 16 2011 03 07 Monthly SWDO04A Southwest Dump 6944161 48 383793 96 861 32 2011 03 07 Monthly Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 ID Area Northing Easting Elevation Date Installed Reading m m m Frequency SWDO05A Southwest Dump 6943939 94 383837 70 869 16 2011 03 07 Monthly WSP1 Water Storage Pond Dam 6945613 04 386480 98 723 31 2011 06 09 Monthly WSP2 Water Storage Pond Dam 6945644 59 386545 46 724 42 2011 06 09 Monthly WSP3 Water Storage Pond Dam 6945551 85 386548 62 719 73 2011 06 09 Monthly WSP4 Water Storage Pond Dam 6945531 56 386555 22 719 93 2011 06 09 Monthly WSP5 Water Storage Pond Dam 6945504 74 386560 23 721 02 2011 06 09 Monthly Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 3 Thermistors Thermistor strings are used to measure ground temperature profiles in boreholes and in particular permafrost
81. 86548 62 719 73 2011 06 09 Monthly WSP4 Water Storage Pond Dam 6945531 56 386555 22 719 93 2011 06 09 Monthly WSP5 Water Storage Pond Dam 6945504 74 386560 23 721 02 2011 06 09 Monthly Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 3 Thermistors Thermistor strings are used to measure ground temperature profiles in boreholes and in particular permafrost conditions at Minto Thermistor strings consist of multiple temperature sensor nodes distributed along a single multi conductor cable installed within or attached to the outside of grouted PVC pipe EBA and RST thermistor strings have been installed on site EBA thermistors are read using a basic ohmmeter and RST thermistors are read using a RST TH2016B readout unit Table 7 Thermistors ID Area Northing Easting Elevation Thermistor Nodes Hole Date Reading m m m String No Depth Installed Frequency m A2T 1 Area 2 Pit 6944162 01 385305 61 822 39 3491 16 63 4 2013 04 21 Monthly DST 10 Dry Stack Tailings 6944584 06 385489 49 797 13 3492 16 63 4 2013 04 17 Monthly DST 11 Dry Stack Tailings 6944899 64 385538 89 787 66 3494 16 86 9 2013 04 05 Monthly DST 13 Dry Stack Tailings 6945014 60 386271 29 777 01 3495 16 101 5 2013 04 02 Monthly DST 14 Dry Stack Tailings 6944769 09 385713 42 791 47 3497 16 66 5 2013 04 12
82. 96 006 Annual Report The Surface Water Surveillance Program monitoring schedule contains weekly and monthly water quality monitoring requirements and continuous weekly and monthly monitoring requirements for surface water hydrology and water conveyance flows Table 2 2 Analytical requirements include in situ field parameters physical parameters nutrients total and dissolved metals dissolved organic carbon and bioassays Water quality analysis is performed by an external laboratory for physical parameters nutrients total and dissolved metals and DOC and the Minto Mine internal laboratory for copper aluminum cadmium selenium ammonia nitrite nitrate and total suspended solids A combination of continuous water level indicators and inline flow metering systems are used for sites that require continuous monitoring Calculated flow measurements determined using the mid section method with a current meter are used for sites that require weekly and monthly monitoring Monitoring procedures for the water quality monitoring are guided by the Minto Mine Surface Water Quality Monitoring Standard Operating Procedures Appendix 1 The water quality SOPs were developed in accordance with the best management practices BMP found in the Protocols Manual for Water Quality Sampling in Canada CCME 2011 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Environment Canada 2001 and Ambient Freshwater and Effluent Samplin
83. Communication System and protective end cap Reel Carrying Case oempummm PmNr r S B w Na Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 1 Make sure the battery for the reel and the Field PC are charged 2 Lift up protective box with two hands and put it on side as a work bench 3 Remove cap from inclinometer casing and look for Ag marking black mark UT Physical Stability Monitoring Plan Minto Explorations Ltd May 2014 Minto Mine 4 Remove excess water inside the probe and the cable connector Probe is very sensitive and susceptible to vibration DO NOT BANG THE PROBE Use a paper towel to wipe it 5 Apply silicon lubricant to probe and cable connector when needed 6 Connectthe inclinometer cable to the probe by aligning the keyways and threading the connector onto the probe Turn the threaded ring but not the cable Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 7 Turn on the power of the reel A green light indicates that the power is on This energizes the Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 9 Always start with UPPER Wheel in the A direction 10 Lower the probe gently and carefully When it gets close to the bottom lower it very gently to avoid bouncing the probe off the bottom of the hole The cable has aluminum sleeve marks which are spaced at 0 5m and i
84. Facility DSTSF Mill Valley Fill Extension MFVE Ice rich Overburden Dump IROD Mill Water Pond MWP Minto Creek Detention Structure MCDS Mining in the Area 1 Pit is complete and the pit is now used as a tailings storage facility As such no in pit deformation monitoring is carried out Instability in the south wall of the pit occurred in 2009 during mining of Stage 3 of the pit and subsequently a larger failure occurred in 2011 after completion of Stage 5 Continued sloughing and creep movement of the south wall led to the design and construction of a waste rock e buttress known as the South Wall Buttress in the pit along the south wall completed in 2013 Instrumentation is currently monitored along the south rim of the pit to detect any continued movement of the wall and buttress Survey hubs Inclinometer The Area 2 Pit is completed to the extents licensed under Phase IV the pit will be extended to the south as part of Phase V VI As part of Phase IV a portal was created at the bottom of the pit to access an underground ore zone Monitoring is therefore ongoing The highwall crest is monitored via survey hubs to measure large scale stability of the wall The highwall is monitored by realtime radar based slope stability measurements and a program of weekly inspections and prism readings monitors those portions of the wall not actively scanned by the radar Survey hubs Prisms Radar Mining of the A
85. For Nitrite the on site laboratory and ALS have good correlation while the correlation with Maxxam is poor most likely because of a difference in the detection limits between the labs Ammonia has poor correlation across all labs this correlation may be due to differences in testing time and detection limits Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Table 9 3 Correlation between Minto Mine On site Laboratory Maxxam and ALS for Nutrients and TSS Lab Comparisons Ammonia Nitrate Nitrite Maxxam vs On site 0 32 0 81 0 37 0 92 Maxxam vs ALS 0 22 1 00 0 89 0 99 On site vs ALS 0 15 0 75 0 99 0 98 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 10 Data Evaluation and Reporting The OML requires that the Licensee provide as part of the annual report a summary of the program undertaken for environmental monitoring and surveillance as outlined in the Environmental Monitoring Plan and the Wildlife Protection Plan including an analysis of these data and any action taken or adaptive management strategies implemented to monitor or address any changes in environmental performance Additionally WUL QZ96 006 requires that the Licensee submit the data that is compiled as a result of these programs and studies as a component of the required monthly data submissions quarterly reports and annual reports All data
86. K DETENTION STRUCTURE SEEPAGE MONITORING PROGRAM MINTO MINE YT MINTO CREEK DETENTION STRUCTURE PLAN AND PROFILE Traner no om w 1014101068 EXPLORATIONS LTD June 2014 21 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine nspector ope Berm Conditions ettlement sink holes bulges sloughing racking rosion rills gullies ip Rap Movement Hg 5 15 5 S olf a oreign materials obstructions Settlement Cracks atthe bottom ofthe pond o0 00000000 O Abnormal and continuous water bubbles inlet and Outlet Conditions Proprwaterflowsininiet Water in Outlet Down Stream Obstruction Vegetation clog outlet inlet_ J _______ qoo Do o Cracks Settlement Soil Collapse on outlet inlet slopes Pump and Pipe Conditions o o LLLI Proper pump operation Foreign materials obstructions Damage Leakage on Pipelines MEME Figure 2 6 MCDS Inspection Form June 2014 22 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 3 Geochemical Monitoring Program Geochemical monitoring is required under the existing version of WUL QZ96 006 in particular in Appendix 6 ABA Test Program and the Geochemical Monitoring Program described here is intended to replace the monitoring described in the existing Amendment 8 licence The Geochemical Mo
87. LOGY SOP including staff stage readings stream characteristics up and downstream of the flow measurement site weather conditions deviation from standard procedures and any other significant details about the visit Standard field forms are used to ensure all the required information is collected A current copy of the Minto Mine Hydrology Field Form is provided in Appendix 1 All field notes should be completed at the station immediately following the observations Field notes must be clear concise and include the station name date and time It is good practice to refrain from erasing mistakes when recording field notes Crossing out the error and rerecording the data is preferred Field notes are entered into the Minto Water Quantity Database upon return from the field and all field notes and field forms are stored on site Data logger files downloaded from the pressure sensors should be transferred immediately from the field laptop or Solinst handheld and saved with the correct file names to the appropriate location on the server Photographs should be taken to document current conditions at each station At a minimum photos must be taken to show changes in physical conditions around the station Photos from one station visit will typically include one upstream and one downstream facing shot Aerial photos should also be taken when the opportunity is available Photographs are stored in digital format and must be accurately labelled by field s
88. MCDS will be decommissioned The planned location of a ground temperature cable was at station GTC 1 on Figure 2 5 To date the installation of the ground June 2014 19 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine temperature cable has not be completed due to the temporary nature of the current MCDS A ground temperature cable if required by the final design will be installed at the proposed new location and structure 2 5 3 Groundwater Quality Monitoring Drive point piezometers DPP were installed in 2012 and 2013 at stations DP 1 and DP 2 respectively on Figure 2 5 The purpose of groundwater sampling downstream of the MCDS is to compare downstream groundwater quality to other groundwater sampling sites and to surface water quality in the MCDS Water quality data gathered from groundwater well MW12 06 Table 2 4 located downstream of the MCDS will be analyzed in conjunction with the data collected from the drive point piezometers surface water downgradient of the MCDS W37 station and the MCDS pond W36 station 2 5 4 Triggers and Responses WUL QZ96 006 requires appropriate triggers and responses for the MCDS The monitoring requirement triggers and corresponding potential responses are summarized in Table 2 8 Table 2 8 MCDS Triggers and Responses Monitoring Triggers Response Physical Monitoring Engineer to develop a remedial action plan to manage the Obse
89. Meadow rue R 2 agriculture 1991 4 Buttercup family Thalictrum venulosum Veiny Meadow rue R 2 unknown 1949 4 Poppy family Papaver croceum Saffron Poppy U 2 39 horticulture 1949 4 Mustard family Arabis caucasica Gray Rockcress R 2 horticulture 2001 4 Mustard family Arabis glabra Tower Mustard R 2 nr transportation 1977 6 Mustard family Armoracia rusticana Horse Radish F 4 3 Mustard family Brassica rapa Bird s Rape R 1 50 agriculture revegetation 1980 4 Mustard family Camelina microcarpa Little pod False Flax R 2 nr unknown 1943 5 Mustard family Camelina sativa Large seeded False Flax R 3 nr agriculture 2007 3 Mustard family Capsella bursa pastoris Shepherd s Purse C 1 40 agriculture 1916 4 Mustard family Descurainia Sophia Herb Sophia U 2 41 unknown 1943 5 Mustard family Erysimum cheiri Wallflower X 3 horticulture 2001 3 Mustard family Hesperis matronalis Dames Rocket R 2 41 horticulture 2010 3 Mustard family Lepidium ramosissimum Branched Pepperwort C 1 nr unknown 1979 5 Mustard family Lepidium sativum Garden Pepperwort X 3 nr horticulture 1902 5 Mustard family Neslia paniculata Yellow Ball mustard X 3 nr agriculture 1904 5 Mustard family Rorippa curvipes var truncata Blunt leaved Yellowcress R 3 unknown 1982 5 Mustard family Sinapis alba White Mustard X 3 nr unknown 1902 5 Mustard family Sinapis arvensis Corn Mustard R 3 36 unknown 2002 5 Mustard family Sisymbrium altissimum Tall Hedge Mustard R 3 nr unknown 1916 3 Mustard family Thlaspi arvense Field
90. Monthly DST 15 Dry Stack Tailings 6945033 78 385958 17 764 51 3493 16 64 0 2013 03 25 Monthly MWPT1 Mill Water Pond 6944992 23 385062 50 784 12 2070 16 23 8 2007 11 02 Quarterly MWPT2 Mill Water Pond 6945015 72 385113 61 784 22 2071 16 23 8 2007 11 02 Quarterly MW11 01 Water Pond 6945010 90 385097 00 784 50 2320 11 101 70 2011 11 20 Quarterly MW11 02 Ridgetop 6943887 385118 861 4 2322 7 30 79 2011 11 21 Quarterly MW11 03 Ridgetop 6943730 385159 868 2 2321 7 30 79 2011 11 21 Quarterly WDT 1 Water Storage Pond 6945523 08 386550 83 720 03 2072 16 42 49 2007 11 16 Monthly WDT 2 Water Storage Pond 6945532 89 38657477 713 66 2073 6 44 50 2007 11 07 Monthly WDT 3 Water Storage Pond 6945544 10 386544 43 719 78 2074 16 49 42 2007 11 11 Monthly WDT 4 Water Storage Pond 6945534 98 386547 90 719 85 2075 16 49 42 2007 11 10 Monthly WDT 5 Water Storage Pond 6945504 57 386557 50 721 03 2076 16 35 13 2007 11 13 Monthly WDT 6 Water Storage Pond 6945505 55 386556 32 721 03 2077 16 33 72 2007 11 13 Monthly WDT 7 Water Storage Pond 6945504 65 386556 39 721 08 2078 16 33 92 2007 11 13 Monthly WDT 8 Water Storage Pond 6945532 89 386574 77 713 66 2079 16 34 14 2007 11 07 Monthly SDT 1 Southwest Dump 6944766 71 384779 13 836 36 2220 16 59 1 2010 02 04 Monthly SDT 2 Southwest Dump 6944595 06 383971 30 847 11 2221 16 14 6 2010 01 31 Monthly SDT 3 Southwest Dump 6944333 87 383824 67 860 17 2222 16 15 8 2
91. ORATIONS LTD Sample Site Lab Analysis Photos NUT 120 ml MINTO MINE SURFACE WATER QUALITY MONITORING SOP Minto Water Quality Field Form TT N QA QC taken DUP YSI Callibration DOC 120 TM 120 ml ml TOC 120 ml Ra 226 1L Bioassay various Flow Recorded Y SPC us cm EC us cm Staff Gauge m Flume RIGHT ft Notes site conditions or variations from normal i e ice cover sediment flows etc Turb NTU Flume LEFT L S Data entered Data reviewed 20 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 3 Sample Chain of Custody Form 21 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Burnaby 4606 Canada Way Burnaby V5G 1K5 Ph 604 734 7276 Fax 604 731 2386 Toll Free 800 665 8566 CHAIN OF CUSTODY RECORD am Click here to get the COC number Maxxam Job EB530912 1 of 1 Invoice To Require Report Yes 0 Report To Company Name Explorations Ltd Company Name Minto Explorations Ltd PO 113796 Contact Name Elvina Wong Contact Name Minto Environment Quotation Address Suite 900 999 West Hastings St Address Suite 900 999 West Hastings St roject Vancouver B C Pc V6C 2W2 Vancovuer B C Pc V6C 2W2 Name Minto Env Monitoring Phone Ph 604 684 8894 Fax 604 688 2
92. PERATING PROCEDURES Prepared by Minto Explorations Ltd October 2012 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP TABLE OF CONTENTS 1 PUrpOSOe volumi m II Rm MD eo eet erp di E MeL 4 2 Responhsibilities onines eU e agen 4 Field aun hieu 4 SUPESMVISOMS m ME cR 5 3 Hydrometric Station Installation 5 4 Jh E 6 GNE Ili rp UE 6 6 Field Notes and Photographic Record 6 Water Quantity Data Collection 7 EEEE eta t D XML CC IR LX S c tree 7 Discharge Measurement using a Current Meter 4 nnne en 8 Rated Bell it AER 11 VolumetricMeasu rements mete Pe eure eec tete regt ter ce aet E 11 MB LICNdelnL Dme 11 Discharge Galculations 2 5 det PO ei er ii bei n ed ea eiu Ee SER ae RR 11 Continuous Water Level and Inline Pipe Flow Meter Data nennen nennen 13 Volumen Measurements tenet eb pen pete etu ge Elit ex hne 13 9 Quality Assurance and Quality 13 eden mU 13 Quality AsSUrariee h d
93. PS e Flagging tape e Multi tool e First aid kit e Appropriate clothing e Water and food Maintenance of Field Instruments All instruments used for performing field measurements are stored and calibrated in accordance with manufacturer s specifications Proper maintenance of field instruments is very important as instruments must be in good working condition in order to produce accurate readings Field staff are trained how to calibrate and use all water quality field instruments prior to going in the field Minto primarily uses an YSI Professional Plus handheld multi parameter meter YSI for monitoring water quality field parameters Performance of the meter is tracked and verified through daily checks and regular calibrations Calibration checks are recorded to identify problems and to review in the event of equipment malfunction Alternatively a Eutech Oakton PCTestr 35 handheld meter is used for monitoring sites W13 and W14 The meter measures temperature pH and conductivity only and is checked prior to use and calibrated according to the manufacturer s specifications Routine maintenance on all field instruments is performed according to the manufacturer with a record of all repairs and maintenance stored on site Field Measurement of Water Quality Parameters Water quality field parameters are recorded with every water sample including water temperature pH conductivity dissolved oxygen DO and oxidation reduction potenti
94. Protocols Manual for Water Quality Sampling in Canada CCME 2011 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Environment Canada 2001 and Ambient Freshwater and Effluent Sampling Manual RISC 2003 This document is intended for Minto Mine employees familiar with the location of water quality sites at Minto and who are knowledgeable in surface water sampling methods Along with on the job training the purpose of this document is to ensure the Minto Mine Water Quality Monitoring Program is carried out consistently and that all surface water samples are representative of the environmental conditions at the time of sampling 2 Responsibilities The reliability and quality of data generated by the Water Quality Monitoring Program is dependent on the staff involved and attention given to the sampling procedures quality control protocols and field equipment It is crucial that water quality samples be collected in a consistent manner with the appropriate equipment to generate the most accurate field measurements and analytical results Erroneous results which do not represent the water body being sampled can lead to inaccurate conclusions about water quality and have the potential to influence management actions The following is a typical allocation of responsibilities associated with the Water Quality Monitoring Program at Minto Field Staff Field staff must have the appropriate knowledge to collect representativ
95. Ra 226 1L Not required 4 mL Nitric Acid HNO3 Table 2 Sample Requirements for Samples Analyzed by Minto Lab Analysis Name Analysis Parameters Bottle Filter Preservative Code plastic Physical RAW TSS NO2 NO NH 1L Not required Not required Parameters Nutrients Total Metals TM Al Cd Cu Se 120mL Not required 1 mL Nitric Acid HNO3 Dissolved metals DM Al Cd Cu Se 120mL Required 1 mL Nitric Acid 0 45 um filter HNO3 Under Snow or Ice Sampling During winter months water quality monitoring stations will freeze over and water quality samples will need to be collected from under snow and or ice Only field staff specifically trained in ice safety will follow these procedures Store and transport chisels axes and augers in clean environments to limit contamination e When sampling on ice always work with a partner and proceed with caution at all times If the ice is unsafe or you are unsure stop work immediately e Ice thickness must be tested with an axe or chisel prior to walking onto a frozen water body and every few steps afterwards Special care must be taken at outflow and inflow areas e Clear snow and loose ice away from the sampling location and drill through the ice with an ice auger either motorized or a hand auger The area around the drill hole should be kept clean and free from potential contamination such as gas dirt from the drill or work
96. SOP If a particular parameter cannot be completed for the site e g the pH probe is not working a note must be made on the field data form explaining why it could not be taken e As much as possible at a mine site sample containers should be kept in a clean environment Bottles must be capped at all times Vehicle cleanliness is an important factor in minimizing the risk of contamination e All samples should be kept upright and as close as possible to 4 C at all times until they are delivered to the laboratory They must not be allowed to freeze unless freezing is part of the preservation protocol e Ship samples to the external laboratory as soon as reasonably possible Samples should be analyzed within the time limits specified by the analytical laboratory 5 Surface Water Sampling Procedures Preparation Prior to departure for sampling staff will ensure that all field equipment is checked for functionality and cleanliness and that sample bottles are clean and unopened All equipment calibration standards preservatives sampling gear and sample bottles will be organized and stored in a clean environment and transported in clean dry containers Field instruments should be tested to ensure batteries are charged and all parts are accounted for Sample bottles preservatives syringes filters and coolers are currently supplied by Maxxam Analytics Current contact information and shipping label for Maxxam Analytics is provided in Appe
97. T vibrating wire piezometers are installed on site and data is collected with an RST VW2106 readout unit Table 8 Vibrating Wire Piezometers ID Area Northing Easting Elevation Sensor No Sensor Date Reading m m m Elevation Installed Frequency m DSP 5A VW24851 765 47 DSP 5 Dry Stack Tailings 6944769 385713 791 47 2013 04 16 Monthly DSP 5B VW24853 761 47 DSP 6A VW24850 769 56 DSP 6 Dry Stack Tailings 6944900 385539 787 66 2013 04 05 Monthly DSP 6B VW24852 765 56 WDP 2 Water Storage Pond 6945632 386545 701 67 WDP 2 VW7212 701 67 2007 11 04 Monthly WDP 3A Water Storage Pond 6945618 386498 712 62 WDP 3A VW7557 712 62 2007 11 28 Monthly WDP 3 Water Storage Pond 6945609 386500 712 60 WDP 3 VW7202 712 60 2007 11 12 Monthly WDP 4 Water Storage Pond 6945609 386500 702 60 WD 4 VW7210 702 60 2007 11 14 Monthly WDP 5 Water Storage Pond 6945605 386526 712 35 WDP 5 VW7204 712 35 2007 11 20 Monthly WDP 6 Water Storage Pond 6945605 386526 701 50 WDP 6 VW7214 701 50 2007 11 20 Monthly WDP 7 Water Storage Pond 6945605 386526 689 20 WDP 7 VW7208 689 20 2007 11 20 Monthly WDP 8 Water Storage Pond 6945554 386542 693 10 WDP 8 VW7200 693 10 2007 11 18 Monthly WDP 9 Water Storage Pond 6945554 386542 687 93 WDP 9 VW7206 687 93 2007 11 18 Monthly WDP 10 Water Storage Pond 6945554 386542 676 17 WDP 10 VW7211 676 17 2007 11 18 Monthly WDP 11 Water Storage Pond 6945523 386551 712
98. Table4 Operational Groundwater Monitoring Requirements Mine Project Component Monitoring Monitoring Monitoring Installation Required Frequency Main Waste Dump MW 09 01 Water Level Spring Fall Water Quality Southwest Waste Dump MW12 DP1 Water Level Spring Fall MW12 DP2 Water Quality MW12 DP3 Dry Stack Tailings Storage Facility MW12 DP4 Water Level Spring Fall and Mill Valley Fill Expansion MW12 06 Water Quality Main Pit MW12 07 Water Level Spring Fall Water Quality Water Storage Pond MW12 05 Water Level Spring Fall Water Quality Table5 Baseline Groundwater Monitoring Requirements Baseline Monitoring Location Monitoring Monitoring Monitoring Installation Required Frequency North of Proposed Minto North Pit MW 09 03 Water Level Spring Fall Water Quality East of Proposed Ridgetop North Pit MW11 02 Water Level Spring Fall MW11 03 Water Quality South of Proposed Ridgetop South MW11 04 Water Level Spring Fall Pit Water Quality 3 4 Analytical Suite for Groundwater Samples Groundwater samples will be collected and analyzed for the parameters identified as suites B N and FP in Appendix 3 of Water Use Licence QZ96 006 Amendment 8 These analytical suites are defined as follows e Suite B Physical Parameters Conductivity Total Dissolved Solids Alkalinity Sulphate ICP Scan Dissolved Metals e Suite N Nutrients Ammonia N Nitrate N Nitrite N and Phosphorous
99. Tailings 6945218 17 386262 61 747 76 321 43 5 2013 04 08 Quarterly DSI 20 Dry Stack Tailings 6944989 60 385394 56 780 47 35 32 5 2013 04 19 Bi weekly 051 21 Dry Stack Tailings 6944587 73 385679 34 793 15 22 27 2013 04 21 Bi weekly moi 2 Area Pit Main 94501 08 38421720 858 67 93 50 5 2010 02 10 Monthly Waste Dump SDI 1 Southwest Dump 6944770 08 384174 61 836 46 0 59 5 2010 02 10 Bi weekly SDI 3 Southwest Dump 6944591 11 383966 00 847 42 90 46 5 2010 02 11 Bi weekly SDI 5 Southwest Dump 6944328 87 383823 17 860 57 2 59 5 2011 10 24 Bi weekly Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 2 Survey H ubs Survey hubs are used to monitor surface movement of structures and are comprised of steel posts cemented into waste rock or bedrock and equipped with a threaded base to which a high precision RTK corrected GPS instrument is attached The GPS currently used on site is a Trimble R8 Table 6 Survey Hubs ID Area Northing Easting Elevation Date Installed Reading m m m Frequency A210 Area 2 Pit south crest 6944268 42 384934 69 861 28 2011 07 01 Weekly A211 Area 2 Pit south crest 6944257 41 384891 47 869 88 2011 07 01 Weekly ASHO5 Airport road 6944280 52 385830 65 850 16 2011 03 07 Monthly ASHO6 Airport road 6944331 73 38562
100. The DSTSF began showing deformation in 2009 the movement has been monitored continuously since then via inclinometers which are typically short lived due to the rate Survey hubs of deformation and survey hubs Ground temperature cables and piezometers have also Thermistors been installed to better understand foundation conditions and to provide data for Inclinometers analytical work The deformation is interpreted as primarily horizontal sliding towards the Piezometers north northeast on an ice rich layer in the underlying overburden several meters above bedrock Dry Stack Tailings Storage Facility DSTSF Mill Valley Fill A waste rock buttress to the north of the DSTSF constructed from January 2012 to March Survey hubs Extension 2013 in an attempt to prevent or decrease further movement of the DSTSF Inclinometers MFVE June 2014 31 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Structure Description Instrumentation Originally constructed as a free standing rockfill structure to contain a volume of ice rich Ice rich i overburden It is now entirely surrounded by the Southwest Dump rockfill which extends Overburden AA Dum a minimum 210m down slope The crest and contents of the IROD are visually inspected once per year No instrumentation is installed in the IROD IROD Mill Water The mill water pond is a small water storage pond used for excess proces
101. Vicia americana American Vetch R 1 unknown 3 Pea family Vicia angustifolia Garden Vetch R 2 unknown 1992 1 Pea family Vicia cracca Tufted Vetch C 2 73 nd 1943 5 Pea family Vicia villosa Wolly Vetch X 3 53 unknown 1916 3 Maple family Acer negundo Manitoba or Ash leaf Maple R 2 nr horticulture 1998 1 Euphorbia family Euphorbia esula Leafy Spurge R 2 84 argiculture 1992 4 Violet family Viola tricolor Johnny jump up C 1 34 horticulture 1995 4 Oleaster family Hippophae rhamnoides Sea Buckthorn R 2 horticulture 2007 3 Carrot family Heracleum sibiricum Siberian Cow parsnip R 2 unknown 1991 5 Carrot family Pastinaca sativa Wild parsnip R 3 nr agriculture 1949 3 Mallow family Malva neglecta Common Mallow R 2 nr agriculture 2008 5 Jacob s ladder family Gilia capitata Blue headed Gily Flower X 3 unknown 1902 3 Forget me not family Amsinckia menziesii Menzies Fiddleneck R 2 nr unknown 1943 5 Forget me not family procumbens German Mad wort X 3 nr horticulture 1949 7 Forget me not family Hackelia deflexa Nodding Stickseed X 3 unknown 3 Forget me not family Lappula squarrosa European Stickseed U 2 44 unknown 1973 5 Forget me not family Myosotis scorpioides True Forget me not 3 54 horticulture 2000 7 Forget me not family Plagiobothrys scouleri Scouler s Popcornflower R 3 unknown 6 Verbena family Verbena hastata var scabra Simpler s Joy 4 5 Mint family Dracocephalum thymiflorum Thyme flowered Dragonhead 3 nr agriculture
102. a is reviewed and evaluated by Minto Mine staff on a monthly and annual basis by cross checking the database with the sample tracking and log spreadsheet The database is frequently audited by Minto Mine personnel and a professional consultant on an annual basis If inconsistences are found further investigation is performed using field notes COCs and lab result files depending on the nature of the error 9 2 Quality Control Quality control protocols are the set of routine procedures and methods designed to achieve and maintain a recognized level of quality Some of the most common quality related problems introduced in surface water quality sampling include the mislabeling or switching of bottles failure to add proper preservatives improper storage conditions and sample contamination from sampling equipment or other sources Quality control samples are collected and analyzed to verify the integrity of water Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine samples and detect errors introduced during sampling Quality control samples represent 1096 of the total number of samples collected and consist of a random combination of the types provided in Table 9 1 Field staff are responsible for documenting when and where quality control samples are prepared on the field forms and in the Minto Water Quality Database Table 9 1 Quality Control Sample Descriptions Type Description and Sample Purpose
103. a picture of wildlife use in the area to inform wildlife protection activities and to evaluate any effects that the mining operation may be having on wildlife values identified in baseline studies Further details of the wildlife protection measures are found in the Minto Mine Wildlife Protection Plan June 2014 42 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Table 7 2 Wildlife Monitoring Activities Area Monitoring Activities Monitored Frequency Wildlife e Maintaining a wildlife observation log onsite reporting wildlife Ongoing Monitoring encounters monitoring measures to ensure birds do not settle on tailings facilities Environmental personnel on site will monitor project activities and modify operations to address wildlife concerns e Monitoring of planned areas of disturbance prior to work to ensure nesting birds are not present Migratory e Monitoring to ensure waterfowl and shorebirds do not settle on Seasonal Birds impacted water bodies such as the Mill Water Storage Pond or the during Main Pit Environmental personnel on site will monitor project migratory activities and modify operations to address wildlife concerns periods Species at e Any caribou observations will be reported to the Conservation Officer in As Risk of Carmacks necessary Concern e Bank swallows have been observed to nest in residuum piles in the summer months in w
104. able 7 1 Common and Scientific Names of Common Yukon Invasive Plant Species 42 Table 7 2 Wildlife Monitoring Activities 43 Table 7 3 Erosion and Sediment Monitoring Schedule eese eene enne 46 Table 9 1 Quality Control Sample 49 Table 9 2 Coefficient of Correlation between Minto Mine On site Laboratory and Maxxam for Total 2 52 Table 9 3 Correlation between Minto Mine On site Laboratory Maxxam and ALS for Nutrients and TSS June 2014 iii Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Table 10 2 Monitoring Program Reporting 54 List of Figures Figure 1 1 Minto Mine Location eene n nnne nnne nenne nnn nsns nsns sans 3 Figure 1 2 Minto Mine Access hri rara rris riri niii 4 Figure 2 1 Water Quality Monitoring Station 1 eene nennen nnn nnns 7 Figure 2 2 Water Quality Monitoring Station Locations McGinty 8 Figure 2 3 Groundwater Monitoring Site Locations esses nennen nennen nennt nnns 15 Figure 2 4 Seepage Moni
105. adout unit Vibrating wire piezometer strings are used to measure pore water pressure profiles in boreholes They consist of multiple vibrating wire sensors installed on PVC pipe in grouted boreholes RST vibrating wire piezometers are installed on site and data is collected with the RST VW2106 readout unit The groundwater monitoring station locations water quality analysis and monitoring frequencies are provided in Table 2 4 Operational Groundwater Monitoring Table 2 4 for operational monitoring and in Table 2 5 for baseline groundwater monitoring The Minto Mine Groundwater Monitoring Program has been included as Appendix 3 Table 2 4 Operational Groundwater Monitoring Mine Project Component Monitoring an Monitoring Required Monitoring Frequency Main Waste Dump MW 09 01 1 Water MW12 DP1 ae Quality Analysis Southwest Waste Dump MW12 DP2 Physica parameters MW12 DP3 Conductivity Total Dissolved Solids Dry Stack Tailings Storage Alkalinity sulphate ICP Facility and Mill Valley Fill MWI2ZDP4 y sulp Twi MW12 06 Scan Dissolved Metals ow ob M Expansion Nittate N spring and once in fall Main Pit MW12 07 Nitrite N Phosphorous In situ parameters pH Water Storage Pond MW12 05 Conductivity and Temperature June 2014 13 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Table 2 5 Base
106. ails about on site monitoring and waste handling procedures can be found in the WROMP Minto Explorations Ltd 2014 3 1 2 External Off site Verification Composite samples from each waste class for each blast are formed from the individual samples that are subject to on site monitoring for S T and C T These composite samples are both tested on site and sent off site to a commercial laboratory to provide external verification for quality control purposes The external verification samples will be analysed for a broader range of parameters including paste pH total sulphur sulphate sulphur total inorganic carbon modified neutralization potential Modified NP and metals by aqua regia digestion with ICP finish Modified NP will be analysed using the MEND 1991 method to allow direct comparison with pre production characterization MEND 1991 June 2014 23 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan 3 1 3 Summary of Sampling and Analytical Frequency A summary of the ABA sampling methods that are used by the mine for collection of overburden waste rock tailings solids and construction materials are summarized in sections 3 1 5 3 1 6 and 3 1 7 respectively ABA sample frequency sample type and analysis requirements are summarized in Table 3 1 Table 3 1 Acid Base Accounting Monitoring Program Requirements Material Sample Frequency Sampling Type
107. ain Main Waste Dump pit The dump is founded on bedrock Movement below the toe is monitored by a Inclinometers MWD single inclinometer Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 3 Design References Table 2 Design Documents and Monitoring Inspection Guidance Documents Structure Area 1 Pit Main Pit Area 2 Pit Area 118 Pit Dry Stack Tailings Storage Facility DSTSF Mill Valley Fill Extension MVFE Ice rich Overburden Dump IROD Mill Water Pond MWP Minto Creek Detention Structure MCDS Reclamation Overburden Dump ROD Design Reports Area 1 South Wall Buttress Design Report Minto Mine Yukon EBA File W141010668 012 July 2011 Prefeasibility Geotechnical Evaluation Phase IV Minto Mine SRK December 2009 Review of Minto Area 2 West Wall Stability SRK September 11 2012 Review of Minto Area 2 West Wall Stability April 2013 SRK April 18 2013 Review of Minto Area 2 West Wall Stability September 2013 SRK September 30 2013 Prefeasibility Geotechnical Evaluation Phase IV Minto Mine SRK December 2009 Geotechnical Design Report Dry Stack Tailings Storage Facility Minto Mine Yukon EBA File 1200173 January 2007 Waste Rock and Overburden Management Plan Phase IV Development Minto Mine YT EBA File W14101068 015 September 9 2011 Upstream Water Management for the Mill Valley Fill Expansion a
108. al ORP Water quality meters are used MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP according to the instructions provided by the manufacturer for greatest efficiency The following procedures and considerations are followed by trained Minto staff Field measurements are always made in situ in the water body or using a sub sample taken in a separate container which is discarded once the measurements are recorded Sub samples are not used for further chemical analyses Instrumentation must display stable in situ parameters before field staff record parameters For example field staff will allow the YSI to stabilize in situ for 10 15 minutes ensuring that dissolved oxygen readings are stable Dissolved oxygen measurements are always taken in situ rather than from a sample container Field parameters are measured just below the water surface 0 1 m depth Water quality data is screened on site during sample collection and suspicious readings are re measured to prevent the recording of false information Any indication of malfunctioning equipment is recorded in the notes for that station Sample Collection Surface water samples should be collected mid stream whenever possible to reduce potential contamination from foreign material sediments and or other effects from stream banks back eddies seepage areas etc When the stream is small the current is too strong water too deep or ice is too thin samples
109. al Stability Monitoring Plan May 2014 6 Instrumentation A map of sitewide active and inactive damaged or destroyed instrumentation is shown in Appendix A Installation information data collection schedules procedures documentation and reporting for active instrumentation are contained in the following sections 6 1 Location and Installation Information 6 1 1 Inclinometers Inclinometers are used to measure lateral differential ground movement in a borehole Inclinometer stations consist of grouted slotted PVC pipe into which the inclinometer probe is lowered and deflection is measured at 0 5m intervals The current probe used on site is an RST digital MEMS inclinometer system Table 5 Inclinometers ID Area Northing Easting Elevation Hole Depth Date Reading m m m Azimuth m Installed Frequency 21 1 DryStackTailings 6944164 73 385298 95 822 46 302 55 5 2013 04 26 Quarterly DSI 10 Dry Stack Tailings 6944926 43 386114 98 780 13 85 2010 11 12 Bi monthly DSI 14 Dry Stack Tailings 6945107 35 385579 80 768 23 62 53 2013 04 08 Bi weekly DSI 16 Dry Stack Tailings 6944843 36 385919 57 792 51 354 92 5 2013 04 15 Bi weekly DSI 17 Dry Stack Tailings 6945034 51 385963 96 764 53 352 57 2013 04 09 Bi weekly DSI 18 DryStackTailings 6945090 95 386132 08 764 60 322 101 5 2013 04 08 Quarterly 051 19 Dry Stack
110. alsely reported 2 local P possible but not yet documented 3 not persistent R rare known from only 1 or two localities 4 falsely reported U unknown X possibly not persistent possibly native Alaska Invasiveness Rank not ranked lt 40 Very Weakly Invasive 40 49 Weakly Invasive 50 59 Modestly Invasive 60 69 Moderately Invasive 70 79 Highly Invasive gt 80 Extremely Invasive Ranking from Matthew L Carlson Irina V Lapina Michael Shephard Jeffery S Conn Roseann Densmore Page Spencer Jeff Heys Julie Riley and Jamie Nielsen 2008 Invasiveness Ranking System for non native plants if Alaska USDA Forest Service Alaska Region R10 TP 143 http www fs fed us r1 0 spf fhp invasive invasiveness 20ranking 20report pdf Introduced Plants of the Yukon Source Cody 1996 cody et al 1998 2000 2001 2002 2003 2004 2005 Bennett B et al 2008 revised by B A Bennett December 2011 this is a tentative list for review purpose only pde Species Abundance Persistence Alaska Rank Source que i collection 1 Grass family Agropyron cristatum Crested Wheat Grass C 1 nr revegetation 1947 4 Grass family Agropyron fragile Siberian Wheat Grass U 2 nr revegetation 1949 4 Grass family Agrostis capillaris Colonial Bent Grass R 2 nr agriculture revegetation 1993 3 Grass family Agrostis gigantea Redtop R 2 nr revegetation 1916 P Grass fami
111. amily Elymus sibiricus Siberian Wild Rye 1 53 revegetation 1980 3 Grass family Festuca rubra ssp rubra Red Fescue C 1 revegetation 4 Grass family Festuca trachyphylla Hard Fescue R 2 agriculture 1949 5 Grass family Hordeum vulgare Common Barley R 39 agriculture 1983 1 Grass family Leymus angustus Narrow leaved Altai Lyme Grass R 2 nr revegetation 1998 4 Grass family Lolium multiflorum Annual Rye Grass R 1 41 revegetation 1902 2 Grass family Lolium perenne Perennial Rye Grass R 1 52 revegetation 1994 5 Grass family Lolium temulentum Bearded Rye Grass X 3 nr unknown 1902 1 Grass family Phalaris arundinacea Reed Canary Grass 1 83 agriculture revegetation 1979 5 Grass family Phalaris canariensis Common Canary Grass X 3 nr agriculture 1941 4 Grass family Phleum pratense Common Timothy C 1 54 agriculture 1902 3 Grass family Poa annua Annual Blue Grass C 1 46 transportation 1968 3 Grass family Poa compressa Canada Blue Grass U 1 39 revegetation 1980 7 Grass family Poa nemoralis Forest Blue Grass 2 revegetation 2 Grass family Poa pratensis ssp pratensis Kentucky Blue Grass C 1 52 unknown 3 Grass family Poa trivialis Rough Blue Grass U 1 52 revegetation 1902 5 Grass family Polypogon monospeliensis Rabbit s foot Grass X 3 unknown 1902 3 Grass family Psathyrostachys Russian Wild Rye R 2 nr agriculture 1960 7 Grass family Puccinellia distans Spreading Alkali Grass C 1 3 Grass family Schedonorus arundinaceus Tall Fescue R 2 66 revegetation
112. any direction e Install staff gauges so they are protected from damage by floating debris and ice and are not affected by drawdown or pileup of water It is typically easiest to read the staff gauge with the face parallel to the current MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP e ideally the depth and velocity of the stream should be fairly uniform with good cross sections for flow measurements using a flow meter e g single channel no undercut banks minimal obstructions no backwater eddies and e No tributaries exist between the hydrometric station and wading cross sections 4 Field Instruments All instruments used for collecting water quantity data are used and maintained according to the manufacturer s specifications Prior to departure for sampling staff will ensure that all field equipment is checked for functionality Minto currently uses a Hach FH950 Electromagnetic Velocity Meter current meter with a top setting wading rod to perform manual discharge measurements whenever possible Electromagnetic current meters are factory calibrated and require little maintenance The Hach FH950 current meter performs a diagnostic self test each time it is powered on and instructions for checking zero velocity settings are provided in the user manual Records of all checks and maintenance are stored on site Continuous water level readings and barometric pressure are recorded using Solinst data loggers for open chann
113. are the set of routine procedures and methods designed to achieve and maintain a recognized level of quality Therefore the collection of reliable surface water quality field data at Minto is accomplished by following the procedures described in this document Quality assurance includes the procedures that keep track of those procedures and provide a check on the quality of the data produced Some of the most common quality related problems introduced in surface water quality sampling include the mislabelling or switching of bottles failure to add proper preservatives improper storage conditions and sample contamination from sampling equipment or other sources Quality control samples are collected and analyzed to verify the integrity of water samples detect errors introduced during sampling Quality control samples represent 1096 of the total number of samples collected and consist of a random combination of the types provided in Table 3 Field staff are responsible for documenting where quality control samples are prepared on the field forms and in the Minto Water Quality Database 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Table 3 Quality Control Sample Descriptions Type Description and Sample Purpose Trip Blank A sealed container of deionized water sent from the laboratory used to detect any widespread TB contamination during transport and storage The trip blank is transported with the sample bo
114. ary crossing before stringing the tagline Try to obtain an overall impression of the depths and velocities while wading Select an appropriate cross section where the bed and banks of the watercourse are straight and uniform and the channel bed is free from vegetation immovable rocks and other obstructions Avoid muddy and sandy bottoms backwater eddies obstacles etc as much as possible Improve the cross section by removing boulders and debris from the section and the area immediately above it Remove significant vegetation from the area upstream and downstream from the section On smaller watercourses it may be possible to construct small dikes to cut off sections of shallow flows and dead water Once complete allow sufficient time for conditions to stabilize before proceeding with the measurement Improvements should not affect the staff gauge reading Do not make changes to the cross section during the course of the discharge measurement Performing the measurement Proceed with the measurement as follows 1 Note the date and time and record the staff gauge reading This step is absolutely essential for plotting the results of the discharge measurement 2 Secure the tagline measuring tape on either shore and string it across channel perpendicular to the direction of flow Determine the overall width of the metering section Assess the approximate spacing of the verticals according to the channel width and flow pattern 3 Record the
115. aseline hydrogeological conditions in areas where future mine components are being planned This groundwater monitoring plan contains provision for baseline monitoring of the following planned future mine components e Minto North Pit e Ridgetop North Pit e Ridgetop South Pit Monitoring well locations are shown in Figure 1 3 2 Monitoring Requirements Monitoring will be comprised of operational and baseline monitoring Table 4 summarizes the operational monitoring requirements and Table 5 summarizes the baseline monitoring requirements All monitoring systems have been installed down gradient of the expected final design footprint of the respective mine components 3 3 Sampling Protocol Groundwater samples will be collected according to the procedures summarized in ASTM D4448 01 Standard Guide for Sampling Ground Water Monitoring Wells ASTM 2007 Table4 Operational Groundwater Monitoring Requirements Mine Project Component Monitoring Monitoring Monitoring Installation Required Frequency Main Waste Dump MW 09 01 Water Level Spring Fall Water Quality Southwest Waste Dump MW12 DP1 Water Level Spring Fall MW12 DP2 Water Quality MW12 DP3 Dry Stack Tailings Storage Facility MW12 DP4 Water Level Spring Fall and Mill Valley Fill Expansion MW12 06 Water Quality Main Pit MW12 07 Water Level Spring Fall Water Quality Water Storage Pond MW12 05 Water Level Spring Fall Water Qual
116. asurement can begin Always assess and mitigate safety risks When the stream is too high and or too swift for wading then either an alternative method should be used or the measurement should not be taken If conditions do not seem safe or you are unsure do not attempt to wade the stream If it is possible to take a measurement from shore always ensure safe footing and solid points of contact 6 Field Notes and Photographic Record Detailed documentation of conditions and observations during station visits is necessary to ensure the quality and accuracy of the data collected Field staff are responsible for thoroughly documenting site conditions MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP including staff stage readings stream characteristics up and downstream of the flow measurement site weather conditions deviation from standard procedures and any other significant details about the visit Standard field forms are used to ensure all the required information is collected A current copy of the Minto Mine Hydrology Field Form is provided in Appendix 1 All field notes should be completed at the station immediately following the observations Field notes must be clear concise and include the station name date and time It is good practice to refrain from erasing mistakes when recording field notes Crossing out the error and rerecording the data is preferred Field notes are entered into the Minto Water Quantity Databas
117. at the Minto Mine These instruments provide measurements of both piezometric pressure and temperature the latter used to increase the accuracy of the calculated pressure measurements when temperatures are above 0 The instruments will also continue to provide temperature data when temperatures are below O C and the transducer is frozen Table 2 provides summary information about the existing vibrating wire piezometers Table 1 Summary of Groundwater Wells Minto Mine Groundwater Well Name Location Status P94 20 Main Water Dam area Destroyed P93 E Main Pit area Destroyed during mining 09 01 Main Waste Dump area Operational MW 09 02 DSTSF Area Destroyed MW 09 03 Minto North Pit area Operational MW 09 04 Main Pit area Destroyed MW11 01A Downgradient of Main Pit Operational sometimes frozen MW11 02 NE of Ridgetop North Pit Operational sometimes frozen MW11 03 SE of Ridgetop North Pit Operational sometimes frozen MW11 04A S of Ridgetop South Pit Operational MW12 DP1 West of Southwest Waste Dump Operational MW12 DP2 West of Southwest Waste Dump Operational MW12 DP3 West of Southwest Waste Dump Operational MW12 DP4 Downgradient of MVF DSTSF Operational MW12 05 Downgradient of WSP Operational MW12 06 Downgradient of MVF DSTSF Operational MW12 07 Downgradient of Main Pit Operational Unnamed auxiliary well near mill Mill area Operational Unnamed camp water
118. ation must display stable in situ parameters before field staff record parameters For example field staff will allow the YSI to stabilize in situ for 10 15 minutes ensuring that dissolved oxygen readings are stable Dissolved oxygen measurements are always taken in situ rather than from a sample container Field parameters are measured just below the water surface 0 1 m depth Water quality data is screened on site during sample collection and suspicious readings are re measured to prevent the recording of false information Any indication of malfunctioning equipment is recorded in the notes for that station Sample Collection Surface water samples should be collected mid stream whenever possible to reduce potential contamination from foreign material sediments and or other effects from stream banks back eddies seepage areas etc When the stream is small the current is too strong water too deep or ice is too thin samples should be collected from the stream bank reaching as far out into the stream as safely possible When field staff are able to safely wade into a stream the sampling location should be approached from downstream Samples are always collected upstream of the sampler The following surface water sampling procedures are followed by trained Minto staff Locate the station using a station map or GPS coordinates then select an area representative of the stream to collect the sample Clearly label all sample bot
119. be found by searching for deposition of soil particles at the bottom of slopes and depressions Riling gullying pedestalling unusual compaction hoof shearing and trailing are also indicators of erosion problems Ditches will be examined during heavy runoff events and the outlets of culverts and pipes visually inspected regularly to ensure that roads and other permanent structures are not being compromised and sediment loads are not becoming excessive Movement of the lighter and finer top soils before vegetation has taken root on reclamation plots will be monitored closely and mitigation efforts employed to prevent compromising the seed and soil Further details of the erosion and sedimentation control methods and areas of concern at the Minto Mine are provided in the Minto Mine Sediment and Erosion Control Plan Table 7 3 Erosion and Sediment Monitoring Schedule Activity Location Frequency Visual inspections Bottoms of slopes and As needed following heavy rain depressions of large events and during freshet structures Road routes ditches and As needed following heavy rain outlets of culverts and pipes events and during freshet Water quality monitoring for total Water quality monitoring Weekly and during heavy runoff suspended solids TSS stations W2 W50 and W17 periods Physical inspection of surface Water Storage Pond Dam After the spring thaw period in facilities by a Yukon registered Mill Water Pond all was
120. caria hispanica Cowcockle R 3 nr agriculture birdseed 1902 2 Buttercup family Clematis tangutica Golden Clematis R 1 nr horticulture 1958 5 Buttercup family Ranunculus repens Creeping Buttercup X 3 54 transportation 1977 4 Buttercup family Thalictrum dasycarpum Purple Meadow rue R 2 agriculture 1991 4 Buttercup family Thalictrum venulosum Veiny Meadow rue R 2 unknown 1949 4 Poppy family Papaver croceum Saffron Poppy U 2 39 horticulture 1949 4 Mustard family Arabis caucasica Gray Rockcress R 2 horticulture 2001 4 Mustard family Arabis glabra Tower Mustard R 2 nr transportation 1977 6 Mustard family Armoracia rusticana Horse Radish F 4 3 Mustard family Brassica rapa Bird s Rape R 1 50 agriculture revegetation 1980 4 Mustard family Camelina microcarpa Little pod False Flax R 2 nr unknown 1943 5 Mustard family Camelina sativa Large seeded False Flax R 3 nr agriculture 2007 3 Mustard family Capsella bursa pastoris Shepherd s Purse C 1 40 agriculture 1916 4 Mustard family Descurainia Sophia Herb Sophia U 2 41 unknown 1943 5 Mustard family Erysimum cheiri Wallflower X 3 horticulture 2001 3 Mustard family Hesperis matronalis Dames Rocket R 2 41 horticulture 2010 3 Mustard family Lepidium ramosissimum Branched Pepperwort C 1 nr unknown 1979 5 Mustard family Lepidium sativum Garden Pepperwort X 3 nr horticulture 1902 5 Mustard family Neslia paniculata Yellow Ball mustard X 3 nr agriculture 1904 5 Mustard family Rorippa curvipes var truncata Blunt leaved Yellow
121. cdusoeseveubo eres 31 6 Aquatic Environmental Monitoring Programm sssccccssssccccsssscecccssscccenssceccecssceccacssseccacssseeeonens 33 June 2014 i Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 6 1 Biological Monitoring sse 33 6 1 1 Sediment Monitoring Program nsns enne ann ns 35 6 1 2 Benthic Invertebrate Monitoring Program enne nnne 35 6 1 3 Minto Creek Annual Fisheries Monitoring Program eese enne 36 6 1 4 Periphyton Monitoring 37 6 2 Environmental Effects Monitoring nnne nnn nnns 38 6 2 1 EEM Water Quality Monitoring nnne enne nnns nnn 38 6 2 2 EEM Biological Monitoring 39 7 Terrestrial Environment Monitoring Program eee nennen n nnne nantes senate nena no 40 7 1 Invasive Plant Species Monitoring Program esses ennemi 40 7 1 1 Invasive Plants Mitlgation 40 LELI Se ICOS RR 40 7 1 1 2 Plant Selection reed ites R E 40 FLT Erosion Control rate aaa aden a e aces 40 PETA SOM SalVaBeuss E iE 41 7 1 2 Invasive Plants 41 7
122. ce and Reporting Plan Minto Mine 3 1 5 Overburden and Waste Rock The objective of the overburden and waste rock ABA test program is to classify all overburden waste rock and low grade partially oxidized material mined at the Minto Mine and disposed of on surface Classification is done through a combination of logging of lithology and related characteristics by the mine geologist during sample collection and subsequent chemical analysis determination of copper sulphur and carbon content Further details of the segregation of waste rock at Minto Mine is detailed in the Minto Mine Phase V VI Expansion Waste Rock and Overburden Management Plan submitted as part of Phase V VI Project Proposal SOPs support the execution of the program and ensure that consistent field observations and sampling protocols are followed Brief summaries of sampling procedures for open pit and underground waste rock are included in the following two subsections for reference 3 1 5 1 Open Pit Waste Rock The sampling procedure for sampling for open pit development waste is summarized in Figure 3 1 Selected ABA Samples Approximately 1 in every 7 drill holes in a waste blast Dry Samples Samples are air dried and held for ABA Crushed and Pulverized Composite Preparation Select samples to composite to represent waste zones within an individual blast NAG and SAT material is composited as separate ABA samples riffle down composite sample to 1 2kg Ext
123. ching of bottles failure to add proper preservatives improper storage conditions and sample contamination from sampling equipment or other sources Quality control samples are collected and analyzed to verify the integrity of water samples detect errors introduced during sampling Quality control samples represent 1096 of the total number of samples collected and consist of a random combination of the types provided in Table 3 Field staff are responsible for documenting where quality control samples are prepared on the field forms and in the Minto Water Quality Database 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Table 3 Quality Control Sample Descriptions Type Description and Sample Purpose Trip Blank A sealed container of deionized water sent from the laboratory used to detect any widespread TB contamination during transport and storage The trip blank is transported with the sample bottles for the entire duration of the sampling event Trip blanks indicate contamination within the bottle or from volatile compounds Field Blank A sample of deionized water that is prepared in the field using the same procedures for collecting FB the field sample Preservative is added after the sample is collected Field blanks measure contamination from bottles collection methods the sampling environment and preservatives Duplicate Duplicate samples are independent samples collected from the same plac
124. cified frequencies Geotechnical Technicians S Internal reporting of monitoring data Maintain equipment QA QC of data collection Input data into monitoring spreadsheets databases Ensure compliance with license requirements Geotechnical Engineers Monthly quarterly and annual water use license WUL reporting Visual inspections at specified frequencies Review and update Physical Monitoring Plan Environmental Officers Review annual WUL report Chief Engineer Compile Monthly quarterly and annual water use license WUL reports Ensure compliance with license requirements Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 5 Inspections Table 4 lists the regular required inspections for each mining structure Table 4 Inspections Structure Frequency Description Dry stack tailings facility Mill Valley Fill Main waste rock dump Southwest waste dump Reclamation Overburden dump Ice rich overburden dump Mill water pond Water storage pond dam Area 1 Pit South wall buttress Mill and Camp Minto Creek detention structure Big Creek bridge South diversion ditch Area 2 and Area 118 pit walls Water storage pond dam Mill water pond Waste rock and overburden dumps Diversion Ditch May June and September Weekly during active mining Weekly daily during filling Weekly daily during filling Inspection and data review by geotechnical engin
125. collected in the previous year is submitted to the Yukon Government Energy Mines and Resources Branch and to the Yukon Water Board as a single report by March 31 of the following year WUL monthly data submission and quarterly and annual report requirements are summarized in Table 10 1 Monitoring data included in the annual report is summarized in Table 10 2 and summarizes of the data to be presented are provided below Table 10 1 WUL QZ96 006 Reporting Requirements Frequency Requirements Requirement WUL 11 14 Monthly Data Submission of water quality surveillance data water withdrawals Submissions from all water sources water use and conveyance flow data site meteorological data records physical stability instrumentation data records geochemical testing records WUL 15 16 Quarterly Summaries of all data generated as a result of the monitoring Report requirements of the licence including preliminary discussion of any variances from expected or required performance and any data collected in the quarter WUL 17 18 Annual Report Summaries of the annual activities conducted in the licence and summarized in the EMSRP Minto intends to request to remove redundancy of preparing both monthly and quarterly reports as part of the Phase V VI licencing process Table 10 2 Monitoring Program Reporting Requirements Reporting Requirements Monitoring Program Internal Exter
126. containers are supplied by the analytical laboratory pre cleaned and capped Hands should be clean prior to sampling and clean gloves worn Metal jewellery should not be worn on hands or wrists and smoking is not permitted while sampling e Do not use a preservative after the expiry date and always store preservatives where they will not freeze or overheat Return expired preservatives to the laboratory for proper disposal e Do not take a sample or wade into a stream if conditions are unsafe Ensure safe footing and solid points if contact when sampling from shore e Rinsing of bottles should be done slightly downstream from the actual sample location to prevent contaminants from entering the sample bottle e Sampling ponded water should be avoided as it will not provide accurate representation of water quality Avoid collecting sediment and surface films if present e When wading to sample always collect the sample while facing upstream to ensure that contaminants that may be on the sampler do not flow into the container Care must be taken to avoid stirring up any sediment e During sample collection the inner portion of sample bottles and caps must not be touched with anything other than sample water Filter and or add preservatives immediately or as soon as possible after sample collection e Gloves syringes and filters will be kept in clean sealed plastic bags MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING
127. cress R 3 unknown 1982 5 Mustard family Sinapis alba White Mustard X 3 nr unknown 1902 5 Mustard family Sinapis arvensis Corn Mustard R 3 36 unknown 2002 5 Mustard family Sisymbrium altissimum Tall Hedge Mustard R 3 nr unknown 1916 3 Mustard family Thlaspi arvense Field Pennycress C 1 42 agriculture 1949 5 Rose family Potentilla biennis Biennial Cinquefoil X 3 nr unknown 1902 2 Rose family Prunus padus Maytree or European Bird Cherry C 2 74 horticulture 2003 2 Rose family Sorbaria sorbifolia False Spiraea R 2 nr horticulture 1992 2 Pea family Astragalus cicer Chick pea Milk vetch R 2 nr revegetation 1995 Page 3 Date of Rank Species Common Name Abundance Persistence Alaska Rank first collection 2 Pea family Caragana arborescens Siberian Peashrub R 2 74 horticulture 1949 3 Pea family Lotus corniculatus Garden Bird s foot Trefoil R 3 63 revegetation 2000 1 Pea family Medicago falcata Lucerne 1 64 argiculture 1967 3 Pea family Medicago lupulina Black Medick R 2 48 transportation 2007 2 Pea family Medicago sativa Alfalfa 1 59 agriculture revegetation 1980 1 Pea family Melilotus alba White Sweetclover 1 81 agriculture 1935 1 Pea family Melilotus officinalis Yellow Sweetclover C 1 69 argiculture 1980 3 Pea family Onobrychis viciifolia Common Sainfoin R 2 nr revegetation 1980 5 Pea family Trifolium cyathiferum Cup Clover X 3 agricult
128. ctices and considerations will be followed by all staff involved in the Water Quality Monitoring Program e All field staff will have the appropriate training and experience with field equipment sampling procedures and objectives prior to performing monitoring duties or be accompanied by experienced staff e Organize a sufficient supply of bottles labels preservatives and filters to complete the sampling ahead of time Sufficient quantities of these items should be stocked at the mine at all times e Sample containers are supplied by the analytical laboratory pre cleaned and capped Hands should be clean prior to sampling and clean gloves worn Metal jewellery should not be worn on hands or wrists and smoking is not permitted while sampling e Do not use a preservative after the expiry date and always store preservatives where they will not freeze or overheat Return expired preservatives to the laboratory for proper disposal e Do not take a sample or wade into a stream if conditions are unsafe Ensure safe footing and solid points if contact when sampling from shore e Rinsing of bottles should be done slightly downstream from the actual sample location to prevent contaminants from entering the sample bottle e Sampling ponded water should be avoided as it will not provide accurate representation of water quality Avoid collecting sediment and surface films if present e When wading to sample always collect the sample while facing upst
129. d Minto primarily uses an YSI Professional Plus handheld multi parameter meter YSI for monitoring water quality field parameters Performance of the meter is tracked and verified through daily checks and regular calibrations Calibration checks are recorded to identify problems and to review in the event of equipment malfunction Alternatively a Eutech Oakton PCTestr 35 handheld meter is used for monitoring sites W13 and W14 The meter measures temperature pH and conductivity only and is checked prior to use and calibrated according to the manufacturer s specifications Routine maintenance on all field instruments is performed according to the manufacturer with a record of all repairs and maintenance stored on site Field Measurement of Water Quality Parameters Water quality field parameters are recorded with every water sample including water temperature pH conductivity dissolved oxygen DO and oxidation reduction potential ORP Water quality meters are used MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP according to the instructions provided by the manufacturer for greatest efficiency The following procedures and considerations are followed by trained Minto staff Field measurements are always made in situ in the water body or using a sub sample taken in a separate container which is discarded once the measurements are recorded Sub samples are not used for further chemical analyses Instrument
130. d Copper aluminum and cadmium are analyzed using a graphite tube atomizer Selenium is analyzed using a Hydride vapour gas accessory Ammonia nitrite and nitrates are analyzed using a Hach DR2800 spectrophotometer Total solids are determined gravimetrically The parameter specific methods used to establish the above criteria are as follows e Ammonia Hach Method 8155 Nitrogen Ammonia Salicylate Method e Nitrites Hach Method 8507 USEPA Diazotization Method e Nitrates Hach Method 8039 Nitrogen Nitrates Cadmium Reduction Method TSS Method Derived from Standard Methods for Water and Wastewater Treatment e Copper Graphite Furnace Atomic Absorption Spectrometer Operation and Maintenance e Aluminum Graphite Furnace Atomic Absorption Spectrometer Operation and Maintenance e Cadmium Graphite Furnace Atomic Absorption Spectrometer Operation and Maintenance e Selenium VGA 77 gas generator for Hydride Generation using Varian Atomic Absorption Spectrophotometers The on site lab and field instrumentation calibrations are performed using the manufacturers specifications Laboratory atomic absorption spectrometry and spectrophotometer equipment require calibration which is conducted by on site lab personnel that are trained in the use of the equipment Field instrumentation the two YSI in situ multi parameter meters and a Eutech Oakton PCTestr 35 handheld meter also require calibration which is conducted by field staff according to
131. d data and data entry is an integral part of quality control While it is not possible to check all aspects of input data calculations and interpretations checks can be performed on selected sets of data at appropriate intervals A review of work procedures and data collection methods will identify potential sources of error Reported water quality data is reviewed and evaluated by Minto Mine staff on a monthly and annual basis The water quality database is audited by Minto Mine and a professional consultant on an annual basis As mentioned previously the Minto water quality database is checked on a monthly basis and is completed by cross checking 15 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP the database with the sample tracking and log spreadsheet If inconsistences are found further investigation is performed using field notes COC and lab result files depending on the nature of the error 7 Closure Not all of the situations encountered by field staff have been included in this document e g water column depth profile sampling as they are not part of routine sampling events A JHA should be conducted prior to completing any new or irregular task to identify what work will take place list all of the potential hazards that could be encountered during the work and the measures necessary to avoid or mitigate the hazards 8 References Resources Information Standards Committee RISC 2003 Ambient Fres
132. distance along the tagline of the left or right bank Left and right bank are determined facing downstream If there is a steep drop at the edge of the stream the first vertical depth and velocity observation should be taken as close to the edge as possible 4 Begin the measurement at the first vertical along the tagline Record the distance of the reading along the tagline then measure and record the water depth at each location using the wading rod The water depth is the point where the water surface intersects the rod Observations should be made to the nearest centimeter This is used to calculate the total cross sectional area 5 Where water depth in the vertical is 1 0 m observations are made at 0 6 depth from the water surface To position the current meter sensor correctly adjust the sliding rod to line up the scale on the rod to the value of the observed depth Detailed instructions on how to adjust the rod are provided by the manufacturer 6 Where water depth in the vertical is 21 0 m the velocity is measured at both 0 2 and 0 8 depth from the water surface and the mean velocity is calculated To set the current meter on 0 2 depth position double MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP the value of the observed depth and adjust the sliding rod to line up the scale to read this value For 0 8 depth position the scale to read half of the observed depth Note The 0 2 0 8 method is not entirely satisfactor
133. drainage and metal leaching conditions at the Minto Mine The program includes a survey for seepage of all project components including the ore stockpile area overburden dump waste rock dumps including low grade medium grade and high grade waste storage area dry stack tailing storage facility DSTSF mill valley fill MVF area mill area and other known seepage locations The monitoring locations and monitoring frequency are summarized in Table 2 6 and the analytical parameters required for water quality samples taken are also detailed in Table 2 6 Seepage survey locations and routes are shown on Figure 2 4 Table 2 6 Seepage Monitoring Station Locations and Sampling Frequency Relevant Water Quality Monitoring L TORR i Survey Locations Monitoring Stations Frequency Analytical Parameters Ore stockpile areas W8 W8A W36 W37 Twice yearly Physical parameters Conductivity Total Overburden dumps W32 W38 W39 W40 once in spring Dissolved Solids Alkalinity Sulphate ICP Waste rock dumps W32 W38 W39 W40 runoff conditions scan Dissolved Metals Drystack tailings early to mid gi Ws WBA W36 W37 May and once in Ammonia N Nitrate N Nitrite N and storage facility early fall Phosphorous Mill Area W8 W8A W36 W37 conditions late NS F n situ parameters pH Conductivity an Mill Valley Fill W38 W8A W36 W37 September early October Temperature Dam Seepage W17 Seepage surveys are carr
134. ds Committee RISC 2009 Standard Operating Protocol Surface Water Hydrology Data Collection and Management Access Consulting Group 2010 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Appendix 1 Minto Environment Mine Hydrology Field Form 15 MINTO EXPLORATIONS LTD Site MINTO MINE SURFACE WATER HYDROLOGY SOP Minto Hydrology Field Form Initials Start Time Start Staff Gauge End Time Datalogger download Y End Staff Gauge Photos Taken Y N Notes precipitation changes to site conditions datalogger info etc Left amp right banks chosen looking downstream Left Bank Measurement Left Bank Depth Right Bank Measurement Right Bank Depth Section Tape Distance m Depth m Velocity m s 1 2 3 4 5 6 7 8 9 16 CAPSTONE MINING CORP MINTO MINE MiNTO MINE Groundwater Monitoring PLAN VERSION 2013 01 Prepared for Minto Mine Prepared by Minto Explorations Limited with contributions from SRK Consulting Vancouver British Columbia March 2013 Table of Contents 1 JntrodUctiOn c ee pear te rete ee gie Eee e RERO EE EE DETENER 2 2 Groundwater related MONitoring ccccccccccccssssssececececsesesseseeescessesuaeeeeeessesesaeseeeescessesaeaeseeeseseseaaeas 2 2 1 1 Groundwater Wells 5 5 erret pe teet ERE
135. dstraw F 4 3 Valerian family Valeriana officinalis Garden Valerian or Allheal R 2 nr horticulture 2007 4 Sunflower family Achillea ptarmica Sneezeweed R 2 46 horticulture 2011 5 Sunflower family Anthemis cotula Stinking Chamomile X 3 41 agriculture 1902 7 Sunflower family Artemisia biennis Biennial Wormwood R 4 nr unknown 5 Sunflower family Centaurea cyanus Cornflower X 3 horticulture 1998 1 Sunflower family Centaurea stoebe Spotted Knapweed X 3 86 unknown 1995 5 Sunflower family Chrysanthemum Early Daisy X 3 unknown 1949 1 Sunflower family Leucanthemum vulgare Oxeye daisy R 1 61 horticulture transportation 1980 1 Sunflower family Cirsium arvense Creeping Canada Thistle R 2 76 transportation 1995 5 Sunflower family Crepis capillaris Smooth Hawksbeard X 3 nr transportation 1998 1 Sunflower family Crepis tectorum Narrow leaved Hawksbeard C 1 56 transportation 1957 4 Sunflower family Gaillardia aristata Great Blanket flower R 2 nr agriculture 1973 7 Sunflower family Gnaphalium uliginosum Marsh Cudweed R 2 nr unknown 5 Sunflower family Helianthus subrhomboideus Stiff Sunflower X 3 unknown 1904 1 Sunflower family Hieracium caespitosum Field Hawkweed R 2 79 transportation 2009 5 Sunflower family Madia glomerata Mountain Tarplant X 3 nr unknown 1902 3 Sunflower family Matricaria discoidea Pineapple Weed C 1 32 unknown 1902 1 Sunflower family Tripleurospermum inodoratum Scentless Chamomile R 1 48 unknown 1980 5 Sunflower family Senec
136. dures Mining and monitoring activities at Minto are licensed under water use license 0296 006 Mining structures at Minto are shown in Figure 1 1 and described in the following section E Main Waste 4 s Water Storage Pond Reclaim Overburden Dump Water Storage Pond Dam Ice Rich Overburden Underground Operations Dry Warehouse and Maintenance Shop Area 118 Fresh Air Raise 169 118 Portal Southwest Waste Dump Ridgetop z M Deposit PA i Re 4 NB ve X Airstrip Figure 1 1 Minto site plan August 2013 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 2 Structures Monitored Mining structures currently being monitored at Minto include the following shown in Figure 1 1 Table 1 Description of Structures Monitored at Minto Structure Description Instrumentation Area 1 Pit Main Pit Area 2 Pit Area 118 Pit Dry Stack Tailings Storage Facility DSTSF Mill Valley Fill Extension MFVE Ice rich Overburden Dump IROD Mill Water Pond MWP Minto Creek Detention Structure MCDS Mining in the Area 1 Pit is complete and the pit is now used as a tailings storage facility As such no in pit deformation monitoring is carried out Instability in the south wall of the pit occurred in 2009 during mining of Stage 3 of the pit and subsequently
137. e Abundance Persistence Alaska Rank Date of first collection 2 Grass family Elymus repens Creeping Wild Rye U 2 59 revegetation 1949 2 Grass family Elymus sibiricus Siberian Wild Rye 1 53 revegetation 1980 3 Grass family Festuca rubra ssp rubra Red Fescue C 1 revegetation 4 Grass family Festuca trachyphylla Hard Fescue R 2 agriculture 1949 5 Grass family Hordeum vulgare Common Barley R 39 agriculture 1983 1 Grass family Leymus angustus Narrow leaved Altai Lyme Grass R 2 nr revegetation 1998 4 Grass family Lolium multiflorum Annual Rye Grass R 1 41 revegetation 1902 2 Grass family Lolium perenne Perennial Rye Grass R 1 52 revegetation 1994 5 Grass family Lolium temulentum Bearded Rye Grass X 3 nr unknown 1902 1 Grass family Phalaris arundinacea Reed Canary Grass 1 83 agriculture revegetation 1979 5 Grass family Phalaris canariensis Common Canary Grass X 3 nr agriculture 1941 4 Grass family Phleum pratense Common Timothy C 1 54 agriculture 1902 3 Grass family Poa annua Annual Blue Grass C 1 46 transportation 1968 3 Grass family Poa compressa Canada Blue Grass U 1 39 revegetation 1980 7 Grass family Poa nemoralis Forest Blue Grass 2 revegetation 2 Grass family Poa pratensis ssp pratensis Kentucky Blue Grass C 1 52 unknown 3 Grass family Poa trivialis Rough Blue Grass U 1 52 revegetation 1902 5 Grass family Polypogon mo
138. e Distance m Depth m Velocity m s 1 2 3 4 5 6 7 8 9 16 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Appendix 3 Minto Mine Groundwater Monitoring Plan June 2014 CAPSTONE MINING CORP MINTO MINE MiNTO MINE Groundwater Monitoring PLAN VERSION 2013 01 Prepared for Minto Mine Prepared by Minto Explorations Limited with contributions from SRK Consulting Vancouver British Columbia March 2013 Table of Contents 1 JntrodUctiOn c ee pear te rete ee gie Eee e RERO EE EE DETENER 2 2 Groundwater related MONitoring ccccccccccccssssssececececsesesseseeescessesuaeeeeeessesesaeseeeescessesaeaeseeeseseseaaeas 2 2 1 1 Groundwater Wells 5 5 erret pe teet ERE 2 2 1 2 Vibrating Wire Piezometers esssssssessseeeeee eene enne nnne enne nenne nnne nnt gana assess nta nass 2 2 1 3 Ground Temperature 8 nennen nennen nnn nnns inen trina nasse 4 3 Groundwater Monitoring ganas nn 5 3 1 Monitoring ODbJeCLIVes qnia uaa eaten eae aiai ieii 5 3 2 Monitoring Requirements rere eren deed OPE ue Tees Pa epa cred 5 3 3 5 3 4 Analytical Suite for Groundwater Samples
139. e and time to determine DUP the precision of environment and laboratory heterogeneity Duplicate samples measure the reproducibility of the sampling and analysis Field Split Aliquots taken from the same sample container and assumed to be identical Split samples can be FS sent to separate laboratories for analysis and the results can be used to determine inter lab variability Care must be taken to ensure that the samples are split homogeneously Quality Assurance Quality assurance protocols help ensure that the Minto Water Quality Monitoring Program is quantifiable and able to produce quality data Minto Mine is continuously involved in consultation with professionals and technical experts regarding program design standard operating procedures and data review Ongoing staff training and inspections of staff especially new hires performing monitoring activities ensure data collection and results are consistent representative and high quality The steady improvement of quality assurance protocols involves developing more detailed and program specific verification processes and automated checks as well as peer reviews and audits by external professionals on a regular basis Effective quality assurance will identify potential problem areas and necessary corrections to procedures and data management and facilitates evaluation and improvement of the monitoring program Quality Assurance on Data Examination and evaluation of fiel
140. e conducted on all mined materials proposed for use in construction Testing of potential construction material will occur during routine pit operations as described in Section 3 1 5 and will be carried out on site Construction material must meet the following requirements to be used for construction June 2014 26 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine e NP C T AP S T gt 3 e Total sulphur content lt 0 3 3 2 Waste Rock Management Verification Program The Waste Rock Management Verification Program supports the waste rock management procedures at the mine The program was developed to address clause 95 of WUL96 006 Amendment 8 and results of this program will be detailed in the annual report The program includes detailed record keeping on the types and quantity of waste rock placed at each location and monitoring and verification of the characteristics of the waste rock stored at each location as per the Waste Rock and Overburden Management Plan Minto tracks all material dispatched between sources and destinations generated using the mine s production tracking database system This data is based on load count sheets compiled by the mining contractor Monthly dump sampling program has also been initiated The procedure is as follows 1 At monthly intervals mine personnel will visit every dump crest that was active over the preceding month as determined by an analy
141. e for ensuring sample and data collection and management procedures are being carried out consistently and identifying variance from standard procedures This includes ensuring digital copies of all field data and laboratory results are saved with the correct file names to the appropriate location on the server The first step in ensuring proper sampling techniques is to provide staff with training for the sampling conditions they encounter Supervisors are responsible for providing appropriate levels of training to all field staff and ensuring that all samplers are proficient to carry out their responsibilities or are adequately supervised It is the responsibility of supervisors to compare water quality data to the applicable standards and to previously collected data to review trends outliers etc Supervisors must also periodically review sampling procedures and the content of this SOP to ensure the best methods are being used and that adequate QA QC is being incorporated into the program 3 Safety Safety is the most important component of any field program All staff must be aware of all potential safety hazards and personal protective equipment PPE requirements for any task they are completing At no time should field staff feel unsafe and all questions or concerns about safety must be brought to the attention of a supervisor It is crucial that monitoring activities are completed in a safe manner This includes having first aid equipment
142. e related water quality effect a Reference Condition Approach RCA and upstream downstream gradient of sites within Minto Creek will be measured This will better characterize the regional range of benthic invertebrate community and determine whether water chemistry is a potential cause The third study design will include details such as e Site characterization including Effluent mixing details in the exposure area including an estimate of concentrations 250 m from the final discharge point A description of the reference and exposure areas A description of production processes used at Minto Mine and the environmental protection practices in place at the mine A summary of federal and territorial laws applicable to the mine in respect of effluent and environmental monitoring A description of other factors that may be expected to contribute to any observed effect additional information relevant to the site characterization A description of the benthic invertebrate study including a description and the scientific rational for Sampling areas selected Sampling season selected Sample size selected and Field and laboratory methodologies selected e Dates and times that the samples will be collected e A description of QA QC measures e Asummary of previous biological monitoring studies conducted at the Minto Mine June 2014 39 Minto Explorations Ltd Environmental Monitoring Sur
143. e samples and protect samples from contamination and deterioration sampler is responsible for minimizing field error and collecting the best sample possible This includes consistency in sampling procedure correct use of sampling equipment accurate labelling and completion of detailed field notes Field staff are responsible for coordinating all sampling events in accordance with the requirements of the current WUL including sampling locations sampling frequency and parameter requirements Staff performing sampling and monitoring duties shall ensure that all site and sample specific details are clearly documented and that all quality assurance and quality control QA QC protocols are being followed Field staff must be experienced in the operation and safety requirements for all field instruments sampling gear equipment and reagents used for sampling They are responsible for maintaining equipment and maintaining stock and inventory of sampling supplies MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Field staff are also responsible for submitting all samples to the appropriate laboratory for analysis in a timely manner and performing data entry related to the Water Quality Monitoring Program Supervisors Supervisors are responsible for ensuring field staff understand the requirements of the WUL and that all WUL requirements and internal QA QC protocols are being met and documented Supervisors are responsibl
144. e substrate through scraping or brushing e Measure the surface area sampled at each station e Transfer sample material to filter paper e Place folded filter paper in a labeled opaque centrifuge tube e Store sample jars in a cool dark place e Samples are shipped to the analytical laboratory 6 2 Environmental Effects Monitoring Program The Environmental Effects Monitoring EEM Program was developed in accordance with Schedule 5 of the MMER Government of Canada 2002 and its objectives are to characterize the impact of effluent on the receiving environment through water quality and biological monitoring The EEM Program is comprised of the EEM Water Quality Program section 6 2 1 and the EEM Biological Monitoring Program section 6 2 2 6 2 1 EEM Water Quality Monitoring Program The EEM Water Quality Monitoring Program is designed to characterize water quality in the exposure area surrounding the point of entry of effluent and compares the results to those in reference un impacted areas Water quality samples must be collected four times a year not less than one month apart while the mine is discharging effluent Water quality samples are also collected concurrently with the Biological Monitoring Program samples Samples are collected at receiving environment station W2 and reference station W7 Water quality measurements and analysis are as follows In situ measurements Analytical Measurements Temperature Concentratio
145. e te ai EE re A DURS i eee Hc id ee ee 4 utc tree eR Oe i t RE 5 EK ic ED ES 5 4 General Guidelines for Surface Water Quality eren nnne 5 5 Surface Water Sampling Procedures 7 7 Maintenance of Field Instruments 8 Field Measurement of Water Quality Parameters eene enne nnn nente 8 Sample Goll amp CHo sioe oie ESI rrr 9 Field Notes and Photographic nn ennnnrnr nennen nr en nennen nnns 12 Sample Gustody be ted endete De i te e d ra 12 Data Managerriernt irte i et d Le ette De dese deg tese Dee ote dee sane Tende Perdu ep ce dut eh 13 6 Quality Assurance and Quality 14 M S 14 Quality Assuranc 15 MESI me ERR 16 8 RBefetences 16 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP TABLE OF APPENDICES Appendix 1 Current
146. e upon return from the field and all field notes and field forms are stored on site Data logger files downloaded from the pressure sensors should be transferred immediately from the field laptop or Solinst handheld and saved with the correct file names to the appropriate location on the server Photographs should be taken to document current conditions at each station At a minimum photos must be taken to show changes in physical conditions around the station Photos from one station visit will typically include one upstream and one downstream facing shot Aerial photos should also be taken when the opportunity is available Photographs are stored in digital format and must be accurately labelled by field staff upon return from the field 7 Water Quantity Data Collection Methods An explanation of the water quantity data collection methods carried out at Minto Mine and detailed procedures for each method are described in this section Staff Gauges Staff gauges are used to record the stage water level of a water body All discharge measurements and continuous water level readings are referenced to the staff gauge therefore it is extremely important to read the staff gauge carefully and correctly each visit Taking a photograph of the water level on the staff gauge is a useful reference in the field for ensuring accurate readings Staff gauge readings should be taken before and after flow measurements as water levels can change in a small amoun
147. e wire eg 5 and P5b 5 Alternatively the data can be stored in the readout box a Scroll with the Up Down arrows to the Memory screen and press enter arrow key audio 0060080 b Scroll with the Up Down arrows to the Store Data screen and press enter Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 C Scroll with the Up Down arrows to the station being monitored and press enter to store the reading audio UN OOO d The data is now stored and the readout box can be turned off by pressing the escape button ESC three times to get back to the main menu and scrolling to Power Off Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Downloading 7 Connect USB cord from computer to the readout box 8 Open the software Multi Readout Host Multi Readout Host 9 Turn on the power on the readout box 10 The software will recognize the readout unit and prompt to download data Choose Yes to download the data from the readout unit Multi Readout Host zs o Would you like to download VW2106 data 11 Once data is downloaded you will have the option to save all data as csv file Choose Yes and the data will be stored in My Documents in a folder named VW2016data Multi Readout Host 2 S Data download complete Would you like to save the data into CSV file
148. ected once per year No instrumentation is installed in the IROD None The mill water pond is a small water storage pond used for excess process water and e Thermistors recirculation of mill process water Detains surface water considered impacted from upstream sub catchment areas and directs it to the Area 1 pit or water treatment plant Extensive instrumentation related to the MVFE is near the MCDS however no instrumentation specific to the MCDS is installed None NA Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Structure Description Instrumentation Received the bulk of the overburden released as part of Phase IV and earlier mining of the Main pit Due to the nature of the material placed within the dump small scale sloughs are expected and have been noted Annual visual inspections have not noted large tension cracks that could be indicative of differential settlement The dump is inspected annually and contains no survey hubs or instrumentation The material in the ROD is available for use in reclamation of the mine at closure Reclamation Overburden Dump ROD None Survey hubs Inclinometers Thermistors Piezometers The southwest waste rock dump SWD is currently the main active waste rock dump at Minto Design details on the SWD are contained in the report Waste Rock and Overburden Management Plan for Phase IV mining Southwest Waste Rock Dump SWD The
149. ed in this SOP Discharge Calculations Discharge is defined as the volume of water flowing through a given cross section of a stream over a given period of time Discharge is typically expressed in L s or m3 s For any stream location there is a correlation between water level and discharge called the stage discharge relationship Once this is established discharge can be estimated from recorded water levels and staff gauge readings to create a continuous discharge record To develop this relationship manual discharge measurements are obtained at the hydrometric station over the 11 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP maximum range of stage possible These corresponding points are graphed then a stage discharge curve can be drawn that best represents these points All field data from station visits is entered into the Minto Water Quantity Database and processed into discharge values using a template and standard formulas in Excel Care must be taken to ensure the formulas are not modified during data entry Current Meter Measurements The mid section method allows for mean discharge Q to be calculated by multiplying the mean stream velocity V and the cross sectional area A thus Q VA In this method the stream is divided into a number of panels The flow in each panel is calculated by multiplying the mean velocity measured at each vertical by the corresponding width measured along the surface tape or cord Th
150. ed level of quality Therefore the collection of reliable surface water hydrology data at Minto is accomplished by following the procedures described in this document For current meter measurements errors in the measurement of width depth and velocity as well as the lack of care in choosing the number of verticals and observations in a vertical all combine to reduce the overall accuracy of water quantity data To a large extent human errors can be avoided by careful attention to detail and by adhering to established and proven techniques and routines Systematic errors can be reduced significantly by proper maintenance and calibration of instruments and equipment and by adequate training However random errors will always occur A significant reduction in these errors can be achieved if field staff performing the measurement can recognize the potential problem areas and can take the appropriate precautionary measures to avoid or minimize them For a detailed description of common factors that lead to inaccuracies in current meter discharge measurements please refer to the Manual of British Columbia Hydrometric Standards RISC 2009 13 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Quality Assurance Quality assurance includes the procedures that provide a check on the quality of the data produced Minto Mine is continuously involved in consultation with professionals and technical experts regarding program design standard
151. eer as per QZ96 006 Clause 11 Visual inspection by geotechnical engineer geologist mine engineer Visual inspection and inspection for water seepage flows as per QZ96 006 Appendix 2 Visual inspection and inspection for water seepage flows as per QZ96 006 Appendix 2 Visual inspection as per QZ96 006 Appendix 2 Visual inspection as per QZ96 006 Appendix 2 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 Instrumentation A map of sitewide active and inactive damaged or destroyed instrumentation is shown in Appendix A Installation information data collection schedules procedures documentation and reporting for active instrumentation are contained in the following sections 6 1 Location and Installation Information 6 1 1 Inclinometers Inclinometers are used to measure lateral differential ground movement in a borehole Inclinometer stations consist of grouted slotted PVC pipe into which the inclinometer probe is lowered and deflection is measured at 0 5m intervals The current probe used on site is an RST digital MEMS inclinometer system Table 5 Inclinometers ID Area Northing Easting Elevation Hole Depth Date Reading m m m Azimuth m Installed Frequency 21 1 DryStackTailings 6944164 73 385298 95 822 46 302 55 5 2013 04 26 Quarterly DSI 10 Dry Stack Tailings 6944926 43
152. elevant environmental conditions observed at the time of sampling and any unusual occurrences Deviations from standard protocols whether deliberate or accidental e g samples taken from a different location due to safety or access considerations procedures used that differ from those outlined in this SOP must be recorded in the field notes Standard field forms are used as much as possible to ensure all the required information water samples and field parameters are collected A current copy of the Minto Water Quality Field Form is provided in Appendix 2 If a field notebook is used as a minimum the field notes must include the following information e Station name date time and names of field staff present e Weather conditions and observations on the physical conditions at the sampling location e GPS coordinates for new sites or when the sampling location has changed more specific to winter sampling and Details of any other site specific information relevant to the sampling event Field notes must always be clear concise and include the station name and date field notes should be completed on site Finally it is good practice to refrain from erasing mistakes when recording field notes Crossing out the error and rerecording the data is preferred Field notes are entered into the Minto Water Quality Database upon return from the field and all field notes and field forms are stored on site Photographs can be taken during an
153. els and inline flow meters for pipe flows These instruments are received factory tested and calibrated and are installed programmed and maintained according to the manufacturer All information provided with the flow measurement equipment is kept and stored on site 5 Safety Wading is the most common method for taking flow measurements at Minto and can also be one of the most dangerous It is strongly recommended that two people conduct flow measurements particularly during high flows Waders with wading belts safety lines and life vests are available for all staff Always explore the streambed for large obstacles or holes while wading carefully into the stream Stream substrates are often slippery If it is safe to wade the stream then the measurement can begin Always assess and mitigate safety risks When the stream is too high and or too swift for wading then either an alternative method should be used or the measurement should not be taken If conditions do not seem safe or you are unsure do not attempt to wade the stream If it is possible to take a measurement from shore always ensure safe footing and solid points of contact 6 Field Notes and Photographic Record Detailed documentation of conditions and observations during station visits is necessary to ensure the quality and accuracy of the data collected Field staff are responsible for thoroughly documenting site conditions MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDRO
154. ention Be careful not to allow the bottom of the wading rod to sink into soft channel bed material If the channel bed is very rough take time to adjust the width of verticals so the observed depths so reflect the tops of the boulders and the depths between them Rated Structure Minto currently has a prefabricated flume combined with a pressure sensor constructed in a four season shelter at W3 Water levels are read off an embedded staff gauge on the flume during each visit For optimal performance the flume floor and walls should be kept clean and free of sediment and algae growth and upstream of the structure should be kept free of sediment accumulation and debris Volumetric Measurements Volumetric measurements are taken at the outlets of elevated pipes and culverts and periodically at select stations when appropriate This method involves collecting water in a container of known volume and recording the time it takes to fill in seconds There must be a minimum of three trials to produce an average time Volumetric containers should be calibrated and stopwatches should be water resistant 8 Data Processing Hydrology data is compiled by Minto Mine staff on a monthly and yearly basis including discharge calculations and water level record corrections Processing data into stage discharge curves hydrographs and other discharge records is presently completed or largely supported by a third party Access Consulting Group and is not includ
155. er events e g freshet e Design of water storage conveyance and discharge systems and e Design of flood control structures on the road network 4 1 Climate Monitoring Program The objective of the Climate Monitoring Program is to collect climatic data specifically for the Minto Mine site The monitoring areas consist of a meteorology station located north east of the Minto Mine airstrip The meteorological station logs parameters at hourly intervals The loggers are downloaded twice per month During the download process staff inspect the meteorological station for inoperative equipment The meteorology station is a research grade Campbell Scientific station that records the following parameters maximum wind speed minimum wind speed average wind speed wind direction precipitation rain and snow temperature relative humidity barometric pressure solar radiation and calculated evapotranspiration Data is downloaded compiled and reported in monthly and annual water use licence reporting 4 2 Snow Survey Program The objective of the Snow Survey Program is to collect snow data used for calculating the snow water equivalent specifically at the Minto Mine Snow water equivalents are inputs to the Minto Mine Site Water Balance models Three courses are surveyed during the first week of February March amp April each year These courses are East facing near the Dyno compound North facing near the airstrip and South facing above t
156. erly MW11 03 Ridgetop 6943730 385159 868 2 2321 7 30 79 2011 11 21 Quarterly WDT 1 Water Storage Pond 6945523 08 386550 83 720 03 2072 16 42 49 2007 11 16 Monthly WDT 2 Water Storage Pond 6945532 89 38657477 713 66 2073 6 44 50 2007 11 07 Monthly WDT 3 Water Storage Pond 6945544 10 386544 43 719 78 2074 16 49 42 2007 11 11 Monthly WDT 4 Water Storage Pond 6945534 98 386547 90 719 85 2075 16 49 42 2007 11 10 Monthly WDT 5 Water Storage Pond 6945504 57 386557 50 721 03 2076 16 35 13 2007 11 13 Monthly WDT 6 Water Storage Pond 6945505 55 386556 32 721 03 2077 16 33 72 2007 11 13 Monthly WDT 7 Water Storage Pond 6945504 65 386556 39 721 08 2078 16 33 92 2007 11 13 Monthly WDT 8 Water Storage Pond 6945532 89 386574 77 713 66 2079 16 34 14 2007 11 07 Monthly SDT 1 Southwest Dump 6944766 71 384779 13 836 36 2220 16 59 1 2010 02 04 Monthly SDT 2 Southwest Dump 6944595 06 383971 30 847 11 2221 16 14 6 2010 01 31 Monthly SDT 3 Southwest Dump 6944333 87 383824 67 860 17 2222 16 15 8 2010 01 28 Monthly SDT 4 Southwest Dump 6944163 62 383783 54 860 99 2223 16 13 1 2010 01 30 Monthly 10 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 6 1 4 Vibrating Wire Piezometers Vibrating wire piezometer strings are used to measure pore water pressure profiles in boreholes They consist of mutltiple vibrating wire sensors installed on PVC pipe in grouted boreholes RS
157. ernal Lab Ship ABA composite sample to accredited external lab for ABA and trace element analyses Figure 3 1 Open Pit Drill Hole ABA Sampling Flow Chart June 2014 25 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 3 1 5 2 Underground Development Waste The sampling procedure for sampling for underground development waste is summarized in Figure 3 2 and is detailed below Selected ABA Samples Grab sample collected every 50 m of development from transfer pad Dry Samples Samples are air dried and held for ABA Crushed and Pulverized External Lab Ship Underground ABA grab samples to accredited external lab for ABA and trace element analyses Figure 3 2 Underground Waste Rock ABA Sampling Flow Chart 3 1 6 Tailings Solids The objective of the tailings solids monitoring program is to maintain an inventory of the geochemical properties of the tailings produced during the project life This is achieved through analysis of monthly composite tailings samples that are formed by combining weekly grab samples Each week a grab sample is collected which contributes the monthly composite sample The monthly composite is air dried and sent to an accredited laboratory for ABA and trace element analysis Analytical results are added to the existing mine database and reported on an annual basis as part of the WUL Annual Report 3 1 7 Construction Materials ABA test work must b
158. es 4 Enter Barometer Reading Grey row highlight indicates begin N A indicates a missing reading DSP 5B DSP 6A DSP 6B Temp Pessina 0 02 DSP 5A 0 7 2013 08 2013 16 2013 26 2013 27 2013 Apr 28 2013 Apr 30 2013 May 16 2013 Jun 17 2013 Jun 18 PEN Barometric pressure can be obtained from the site s weather monitoring stations Data is stored here X Environmental Environmental Monitoring Program 1 MASTER LOGS Meteorology Station Data Met Station 1 and 2 Data Summary xlsx Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 this page is left blank Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Appendix 5 Yukon Invasive Plants by Taxonomy June 2014 Invasiveness Rank 1 highly invasive may displace or replace native ecosystems 2 aggressive widespread persistent but may not replace native species or change ecosystem function 3 taxa present in the territory that area not known to be invasive here but have been found to be invasive in other jurisdictions 4 has been reported in the territory Has not been shown to be problematic may not persist 5 species that likely don t persist 6 false reports 7 native and introduced populations exist General Abundance Persistence C common widespread established 1 widespread F f
159. es field equipment and quality control protocols It is crucial that flow measurements be carried out in a consistent manner with the appropriate equipment to generate the most accurate results The following is a typical allocation of responsibilities associated with the collection of surface water hydrology data at Minto Field Staff Field staff must have the appropriate knowledge and training to take precise flow measurements and collect representative data while minimizing field error as much as possible This includes following all procedures correctly and consistently correct use of field equipment and completion of detailed field notes Field staff are responsible for coordinating all station visits in accordance with the requirements of the current WUL including sampling locations sampling frequency etc Staff performing station visits shall ensure that all site conditions and other required information are clearly documented and that all quality assurance and quality control QA QC protocols are being followed Field staff must be experienced in the operation and maintenance of all field instruments and the equipment used for measuring water quantity data They are responsible for maintaining equipment and identifying equipment malfunction Field staff are also responsible for performing data entry related to surface water hydrology on site MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Supervisors Superv
160. et where possible All samples must be well sealed and packed with paper bubble wrap etc to prevent spills or breakage Pack each cooler with sufficient ice packs to maintain the samples at 4 Samples collected during the winter will be cooler and will not require the same amount of packaging and ice packs as samples collected in the summer Samples must not be permitted to freeze If samples are being shipped in temperatures significantly below freezing collapsible jugs of warm water may need to be added to the packaging Enclose a printed copy of the COC form in a sealed plastic bag or envelope and place it inside one of the coolers with the sample shipment Label all coolers or shipping containers with the address of the laboratory and the sender and attach it with enough clear tape to protect the label An example of a laboratory shipping label is provided in Appendix 1 Data Management All water quality data including field notes photographs completed COC forms and laboratory results are carefully handled organized and stored to ensure the information can be located for future use The information collected during water quality sampling events is critical to the interpretation of the data in some cases even several months or years after the sampling event has taken place The following surface data management procedures are followed by trained Minto staff e After completing COC form an electronic copy is saved with the appropr
161. ever the following elevation points must be collected e Elevation of 0 000m on the staff gauge should be relative to an arbitrary elevation assigned to a benchmark in the area typically a spike in the base of a large nearby tree e Elevations of at least two benchmarks and e Elevation of the water surface at the gauge Bench marks are permanent reference points with known elevations They are established at each station in a stable location close enough to the gauge to allow for efficient surveying anchored where they are not likely to move or be damaged The ability of the benchmark to maintain its position in the local environment is essential At Minto benchmarks are typically a spike or lag bolt in a mature tree Discharge Measurement using a Current Meter Minto uses the mid section method for measuring flows using a current meter This is a standard discharge measurement technique where the depth and velocity are measured at a number of verticals along a cross section Velocity measurements at a percentage of the stream depth are assumed to represent the average velocity through the vertical water column Accurate current metering is critical to the accuracy of the discharge measurement Preparation Upon arrival at the site field staff will conduct an overall station inspection Observing and documenting the overall channel conditions will help identify conditions that may affect the measurement and the stage discharge relations
162. f gauge reading for each point in time and the average of all these differences can be applied to the entire data record as a single offset adjustment Volumetric Measurements To calculate discharge from a volumetric measurement the following formula is used Discharge Volume of container litres Average time to fill seconds 9 Quality Assurance and Quality Control The Minto Quality Assurance and Quality Control plan has been created to provide confidence in the data collected for all environmental monitoring and sampling programs QA QC is an integral component to quality surface water hydrology data Quality Control Quality control protocols are the set of routine procedures and methods designed to achieve and maintain a recognized level of quality Therefore the collection of reliable surface water hydrology data at Minto is accomplished by following the procedures described in this document For current meter measurements errors in the measurement of width depth and velocity as well as the lack of care in choosing the number of verticals and observations in a vertical all combine to reduce the overall accuracy of water quantity data To a large extent human errors can be avoided by careful attention to detail and by adhering to established and proven techniques and routines Systematic errors can be reduced significantly by proper maintenance and calibration of instruments and equipment and by adequate training However random
163. g Manual Clark 2003 Monitoring procedures for the hydrological monitoring are guided by the Minto Mine Surface Water Hydrology Standard Operating Procedure Appendix 2 The hydrology SOPs were developed in accordance with the BMPs found in the Guidance Document for Flow Measurement of Metal Mining Effluents Environment Canada 2001 and in the Manual of British Columbia Hydrometric Standards Ministry of Environment 2009 June 2014 9 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Table 2 2 Water Quality and Hydrology Monitoring Program Requirements External Analytical Internal Station Flow DE sulle sulle a uA Frequency _ Frequency Frequency DE BEC Toxicity Suite w1 C 5 W2 2 M Wd M Wd A N DOC Wd Md w3 C M Wd M Wd A N DOC Wd Md Md WA Q Q w5 Q Q A N W7 M M A N DOC W8 W8A M M A N W10 W12 W WL TV M M A N W14 M M A N W15 C M M A N Wd W16 W WL Mnf Wd Mnf Wd A N Wd W16A Cd 5 Wd Wd A N DOC Wd Md Md W17 C M Wd M Wd A N Wd W30 M M M A N W33 M W35 C M M A N Wd W36 C D M M A N W37 M 2 M M A N 45 W WL TV M M A N W
164. ge 19 7 to 24 3 4 696 Sampling conditions Av core to snow depth 8196 Difficult Station 9 discarded outlier Figure 4 1 Sample Snow Survey Field Form June 2014 30 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 5 Physical Monitoring Program The objective of the Mine Infrastructure and Workings Physical Monitoring Program is to monitor the performance of key mine infrastructure and workings Mine infrastructure that requires monitoring under the Mine Infrastructure and Workings Monitoring Program the infrastructure descriptions and instrumentation in place are outlined in Table 5 1 The program consists of two main components instrumentation to measure ground conditions and deformation and regular geotechnical inspections The roles and responsibilities for each component of the program are summarized in Table 5 2 More details regarding the components of the program can be found in Appendix 4 the Minto Mine Physical Monitoring Plan Table 5 1 Mine Infrastructure and Workings Monitoring Program Requirements Structure Description Instrumentation Mining in the Area 1 Pit is complete and the pit is now used as a tailings storage facility As such no in pit deformation monitoring is carried out Instability in the south wall of the pit occurred in 2009 during mining of Stage 3 of the pit and subsequently larger failure occurred in 2011 after completion
165. ge 2 Species Common Name Abundance Persistence Alaska Rank Date of first collection Yukon Introduced Plants January 2012 3 Goosefoot family Chenopodium album Lamb s Quarter C 1 37 unknown 1883 4 Pink family Cerastium fontanum Common Mouse ear Chickweed U 1 36 unknown 1968 4 Goosefoot family Spinacia oleracea Spinach R 2 agriculture 1980 4 Pink family Cerastium glomeratum Sticky Mouse ear Chickweed R 2 36 horticulture 2004 4 Pink family Cerastium nutans Nodding Chickweed R 2 horticulture 1996 5 Pink family Dianthus plumarius Carnation R 3 horticulture 1994 5 Pink family Gypsophila elegans Showy Baby s breath R 3 nr unknown 1980 3 Pink family Silene noctiflora Night flowering Catchfly R 2 43 revegetation 1996 2 Pink family Silene vulgaris Bladder Campion R 2 42 agriculture horticulture 1984 5 Pink family Spergula arvensis Corn Spurry X 3 32 unknown 1902 4 Pink family Spergularia rubra Red Sandspurry R 2 34 unknown 1977 2 Pink family Stellaria media Common Chickweed 1 42 agriculture horticulture 1943 5 Pink family Vaccaria hispanica Cowcockle R 3 nr agriculture birdseed 1902 2 Buttercup family Clematis tangutica Golden Clematis R 1 nr horticulture 1958 5 Buttercup family Ranunculus repens Creeping Buttercup X 3 54 transportation 1977 4 Buttercup family Thalictrum dasycarpum Purple
166. he Minto Mine Table 1 1 summarizes the regulatory monitoring requirements and key personnel involved with the management of the requirements as well as the section of the EMSRP which provides details of the monitoring programs This EMSRP replaces the previous Environmental Management Plan submitted in June 2011 by Minto Explorations Ltd and approved in October 2011 The content of this EMSRP is derived from the Plan Requirement Guidance for Quartz Mining Projects Yukon Government 2013 and has been prepared to meet the requirements of the WUL and the OML Time to time monitoring plans require updating and will be resubmitted Minto acknowledges that should adjustments to the EMSRP and associated monitoring be determined during the licensing process for the Phase V VI the licence conditions will supersede this document Table 1 1 Summary of Regulatory Monitoring Requirements A z EN sociated Regulatory Monitoring EMSPRP Regulatory Monitoring Programs Licence or 3 Programs Key Managers Section Regulation Water Monitoring Program WUL 75 Surface Water Surveillance Program uU Environment Manager 2 1 Appendix 3 Metal Mine Effluent Monitoring Program MMER Environment Manager 2 2 Groundwater Monitoring Program WUL 96 97 Environment Manager 2 3 Seepage Monitoring Program WUL 76 Environment Manager 2 4 Minto Creek Detention Structure MCDS Seepage WUL 84 85 25 Monitoring Program Geochemical Mo
167. he Tank Farm detailed in Table 4 1 Along each course ten stations are sampled using a machined core tube with cutting end and scale with assembly The parameters collected during the surveys include snow depth core length core weight snow density weather site conditions snow conditions crust layers and snow temperature June 2014 29 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Table 4 1 Snow Survey Course Locations e Description Location Easting Northing East of the Dyno compound on an east facing Dyno slope along a cut line surrounded by East Facing 8V 383 594 694 3377 moderately densely tree area North of the Minto Mine fuel farm on a south Fuel Farm facing slope in a sparse to moderately densely South Facing 8V 385 061 694 5318 treed area Airstrip Northeast of the Minto Mine airstrip on a north North Facing 8V 386 255 694 4284 facing slope in a sparsely treed area Snow sampling procedures are conducted following a standard operating procedure developed in accordance with the BC Ministry of Environment s Snow Survey Sampling Guide Ministry of Environment 1981 A sample field data sheet is provided in Figure 4 1 Driving wrench used Y N Snow Water Equivalent Checkedby initials amp date Field Notes Weather Clear amp sunny Surface snow conditions Density ran
168. he packaging Enclose a printed copy of the COC form in a sealed plastic bag or envelope and place it inside one of the coolers with the sample shipment Label all coolers or shipping containers with the address of the laboratory and the sender and attach it with enough clear tape to protect the label An example of a laboratory shipping label is provided in Appendix 1 Data Management All water quality data including field notes photographs completed COC forms and laboratory results are carefully handled organized and stored to ensure the information can be located for future use The information collected during water quality sampling events is critical to the interpretation of the data in some cases even several months or years after the sampling event has taken place The following surface data management procedures are followed by trained Minto staff e After completing COC form an electronic copy is saved with the appropriate file name to the designated location on the server 13 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP When samples are received at the lab an automated confirmation email is sent to Minto environment staff The lab job number is entered into the Minto Water Quality Database e When lab results are received by email they are reviewed by supervising staff at the earliest opportunity Supervisors are responsible for importing the data into the Minto Water Quality Database regularly
169. her site specific information relevant to the sampling event Field notes must always be clear concise and include the station name and date field notes should be completed on site Finally it is good practice to refrain from erasing mistakes when recording field notes Crossing out the error and rerecording the data is preferred Field notes are entered into the Minto Water Quality Database upon return from the field and all field notes and field forms are stored on site Photographs can be taken during any sampling event to document current conditions at each station At a minimum photos must be taken to show changes in physical conditions at the sampling location Photos from one sampling event will typically include one upstream and one downstream facing shot Aerial photos should also be taken when the opportunity is available Photographs are an important tool to assist with data interpretation Photos are stored in digital format and must be accurately labeled by field staff upon return from the field Sample Custody and Shipment Water quality samples are handled at all times to prevent damage and potential sample loss thereby reducing the risk of contamination Samples are transported around the mine site in sealed coolers with sufficient ice packs until they are placed in a sample fridge or delivered to the Minto Lab Samples are stored upright in clean 12 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP
170. hich case these piles are cordoned off and left undisturbed until after the late summer migration or resloped prior to nesting season to deter nesting June 2014 43 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Date Time Type of Animal of individuals Location Description Size Color Markings and Additional Notes Reportable Incident Yes EXAMPLES 12 00 3 Km 17 access road Cubs Chocolate Small Sow Dark brown Tan 4 1 2013 430PM Blackbear 1 wy O Nob yS D aspon 5 40 Moose and OO Figure 7 1 Wildlife Monitoring Log Form June 2014 44 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine ting binder Figure 7 2 Nuisance or Potentially Dangerous Animal Observation Form June 2014 45 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 7 3 Erosion and Sedimentation Monitoring Program Monitoring of surface structures and of the receiving environment for evidence of erosion and sediment accumulation is required by WULQZ96 006 and monitoring activities are summarized in Table 7 3 Initial erosion can be visually inspected by searching for light surface material litter or soil movement while sedimentation resulting from erosion can
171. hip Assessing channel conditions is also important in deciding whether or not it is safe to complete the measurement This includes the presence of aquatic plants and floating debris any obstructions in the stream and signs of channel bank erosion and deposition in vicinity of the station Field staff are responsible for selecting the best cross section to carry out discharge measurements during each station visit The location of the cross section often varies with changes in water levels or channel conditions MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP The best sections for low medium and high flow measurements should be established and used as much as possible Make a preliminary crossing before stringing the tagline Try to obtain an overall impression of the depths and velocities while wading Select an appropriate cross section where the bed and banks of the watercourse are straight and uniform and the channel bed is free from vegetation immovable rocks and other obstructions Avoid muddy and sandy bottoms backwater eddies obstacles etc as much as possible Improve the cross section by removing boulders and debris from the section and the area immediately above it Remove significant vegetation from the area upstream and downstream from the section On smaller watercourses it may be possible to construct small dikes to cut off sections of shallow flows and dead water Once complete allow sufficient time for condit
172. hwater and Effluent Sampling Manual Environment Canada 2001 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Canadian Council of Ministers of the Environment CCME 2011 Protocols Manual for Water Quality Sampling in Canada 16 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 1 Current Maxxam Contact and Shipping Label 17 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Minto Explorations Ltd COC Suite 900 999 West Hastings Street Vancouver BC V6C 2W2 Mine Tel 604 759 0860 Maxxam Analytics Inc attn Kelly Janda 4606 Canada Way Burnaby BC V5G 1K5 Ph 604 638 5019 Air North Cargo Please deliver to address above c o Air North Account 15979218 Regular Delivery 18 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 2 Minto Environment Water Quality Field Form 19 MINTO EXPLORATIONS LTD Sample Site Lab Analysis Photos NUT 120 ml MINTO MINE SURFACE WATER QUALITY MONITORING SOP Minto Water Quality Field Form TT N QA QC taken DUP YSI Callibration DOC 120 TM 120 ml ml TOC 120 ml Ra 226 1L Bioassay various Flow Recorded Y SPC us cm EC us cm Staff Gauge m Flume RIGHT ft Notes site conditions or variations from normal i e ice cover sediment flows etc Turb NTU Flume LEFT L S
173. iate file name to the designated location on the server 13 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP When samples are received at the lab an automated confirmation email is sent to Minto environment staff The lab job number is entered into the Minto Water Quality Database e When lab results are received by email they are reviewed by supervising staff at the earliest opportunity Supervisors are responsible for importing the data into the Minto Water Quality Database regularly e f reviewing new results in comparison to past trends suggests that results are suspect or if the results exceed the applicable standards for a particular parameter an investigation will be initiated The lab should be requested to review their QA QC for that batch and re run the sample or analyze waters from another sample bottle for the suspect parameter s e Unless it is obvious that the anomalous result that is over discharge criteria is false new samples should be taken and sent immediately 6 Quality Assurance and Quality Control The Minto Quality Assurance and Quality Control plan has been created to provide confidence in the data collected for all environmental monitoring and sampling programs QA QC is an integral component to quality surface water quality sampling General QA QC procedures that apply to the Water Quality Monitoring Program are described in this section Quality Control Quality control protocols
174. ied out along the toe of each location shown on Figure 2 4 For each seepage monitoring event survey routes are recorded using the tracking function of a GPS Where actively flowing seepage is encountered a sample is collected according to the following protocols 1 Record sample location using GPS 2 Take three photos at each station one close up photograph showing the substrate the seepage is interacting with one upgradient photograph showing the area from which the seepage is flowing and one downgradient photograph showing the seepage flow path and area that the seepage reports to 3 Take water quality sampling using standard sampling techniques For each sample field data and observations are recorded on a purpose designed form This form includes fields for the following information e Date and time of sample collection e Coordinates of station location e Weather at time of sample collection June 2014 16 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine e Reference numbers of photographs taken e Field measurements of pH conductivity temperature e Sketch of the sampling location showing any relevant features e g location of toe pools of water trace of surface water flow site features such as roads ditches sumps e Water colour turbidity and presence of any precipitates or mineral staining and e Colour of sediment on filter and number of filters
175. ifications Prior to departure for sampling staff will ensure that all field equipment is checked for functionality Minto currently uses a Hach FH950 Electromagnetic Velocity Meter current meter with a top setting wading rod to perform manual discharge measurements whenever possible Electromagnetic current meters are factory calibrated and require little maintenance The Hach FH950 current meter performs a diagnostic self test each time it is powered on and instructions for checking zero velocity settings are provided in the user manual Records of all checks and maintenance are stored on site Continuous water level readings and barometric pressure are recorded using Solinst data loggers for open channels and inline flow meters for pipe flows These instruments are received factory tested and calibrated and are installed programmed and maintained according to the manufacturer All information provided with the flow measurement equipment is kept and stored on site 5 Safety Wading is the most common method for taking flow measurements at Minto and can also be one of the most dangerous It is strongly recommended that two people conduct flow measurements particularly during high flows Waders with wading belts safety lines and life vests are available for all staff Always explore the streambed for large obstacles or holes while wading carefully into the stream Stream substrates are often slippery If it is safe to wade the stream then the me
176. ily Artemisia biennis Biennial Wormwood R 4 nr unknown 5 Sunflower family Centaurea cyanus Cornflower X 3 horticulture 1998 1 Sunflower family Centaurea stoebe Spotted Knapweed X 3 86 unknown 1995 5 Sunflower family Chrysanthemum Early Daisy X 3 unknown 1949 1 Sunflower family Leucanthemum vulgare Oxeye daisy R 1 61 horticulture transportation 1980 1 Sunflower family Cirsium arvense Creeping Canada Thistle R 2 76 transportation 1995 5 Sunflower family Crepis capillaris Smooth Hawksbeard X 3 nr transportation 1998 1 Sunflower family Crepis tectorum Narrow leaved Hawksbeard C 1 56 transportation 1957 4 Sunflower family Gaillardia aristata Great Blanket flower R 2 nr agriculture 1973 7 Sunflower family Gnaphalium uliginosum Marsh Cudweed R 2 nr unknown 5 Sunflower family Helianthus subrhomboideus Stiff Sunflower X 3 unknown 1904 1 Sunflower family Hieracium caespitosum Field Hawkweed R 2 79 transportation 2009 5 Sunflower family Madia glomerata Mountain Tarplant X 3 nr unknown 1902 3 Sunflower family Matricaria discoidea Pineapple Weed C 1 32 unknown 1902 1 Sunflower family Tripleurospermum inodoratum Scentless Chamomile R 1 48 unknown 1980 5 Sunflower family Senecio eremophilus Dryland Ragwort R 3 transportation 1968 3 Sunflower family Senecio vulgaris Common Ragwort R 2 36 horticulture agriculture 1902 1 Sunflower family Sonchus arvensis ssp uliginosus Field Sow thistle C 1 73 unknown 1980 2 Sunflower family Sonchus asper
177. imes using a Hess sampler Each sample is a composite of three grabs Supporting habitat measures and in situ water quality parameters are recorded at each monitoring area A water quality sample for physical parameters nutrients total metals dissolved metals and dissolved organic carbon is performed concurrent with periphyton sampling Taxonomy to be performed to lowest practical level and data to be summarized using the endpoints specified in Environment Canada 2011 Collect supporting habitat and water quality measures Habitat measures Supporting water quality measures Substrate characterization 100 pebble count Temperature Water velocity Dissolved oxygen Sample depth Specific conductance Creek width wetted and bankfull pH Cover description Habitat measures are recorded as per the Canadian Aquatic Biomonitoring Network Field Manual Environment Canada 2011 6 1 3 Minto Creek Annual Fisheries Monitoring Program The objective of the Minto Creek Annual Fisheries Monitoring Program is to monitor assess and characterize fish usage in Minto Creek and to provide data to allow interpretation of the potential influence of the Minto Mine on the fish community The Minto Creek Annual Fisheries Monitoring Program focuses on Chinook salmon however characterization of other species such as slimy sculpin arctic grayling and round whitefish also takes place Usage and characterization is primarily f
178. inspections 13 Appendix A Instrumentation Water Storage Pond Dam Detail 22 694598 lt GPS Survey Hub dq Inclinometer Plezometer X Ground Temperature Cable Ccapstone MINTO MINE Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Appendix B Data Collection and Input Manuals Inclinometer Measurements Please refer to RST MEMS Digital Inclinometer System Instruction Manual for complete instruction System Overview Figure 1 System Overview Soft Shell Case Digital Inclinometer Probe w protective end cap Reel Battery Charger 70mm 2 75 OD Cable Grip 85mm 3 34 OD Cable Grip Ultra Rugged Field PC 12V DC car adapter for Reel Battery Charger or Ultra Rugged Field PC Spare Reel Battery Silicone Lubricant for use on connectors 10 USB Cable for Ultra Rugged Field PC AC Adapter 110 240V for Reel Battery Charger AC Adapter 110 240V for Ultra Rugged Field PC Cable Reel with Wireless Communication System and protective end cap Reel Carrying Case oempummm PmNr r S B w Na Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 1 Make sure the battery for the reel and the Field PC are charged 2 Lift up protective box with two hands and put it on side as a work bench 3 Remove cap from inclinometer casing and look for Ag marking black mark UT Physical
179. io eremophilus Dryland Ragwort R 3 transportation 1968 3 Sunflower family Senecio vulgaris Common Ragwort R 2 36 horticulture agriculture 1902 1 Sunflower family Sonchus arvensis ssp uliginosus Field Sow thistle C 1 73 unknown 1980 2 Sunflower family Sonchus asper Prickly Sow thsitle R 2 46 horticulture 1904 6 Sunflower family Sonchus oleraceus Common Sow thistle F 4 46 1 Sunflower family Tanacetum vulgare Common Tansy U 2 60 horticulture transportation 1995 4 Sunflower family Taraxacum erythrospermum Red seeded Dandelion X 2 unknown 1949 2 Sunflower family Taraxacum officinale Common Dandelion C 1 58 unknown 1943 2 Sunflower family Tragopogon dubius Yellow Goat sbeard R 2 50 transportation 1995 Yukon Introduced Plants January 2012 Page 5
180. ions to stabilize before proceeding with the measurement Improvements should not affect the staff gauge reading Do not make changes to the cross section during the course of the discharge measurement Performing the measurement Proceed with the measurement as follows 1 Note the date and time and record the staff gauge reading This step is absolutely essential for plotting the results of the discharge measurement 2 Secure the tagline measuring tape on either shore and string it across channel perpendicular to the direction of flow Determine the overall width of the metering section Assess the approximate spacing of the verticals according to the channel width and flow pattern 3 Record the distance along the tagline of the left or right bank Left and right bank are determined facing downstream If there is a steep drop at the edge of the stream the first vertical depth and velocity observation should be taken as close to the edge as possible 4 Begin the measurement at the first vertical along the tagline Record the distance of the reading along the tagline then measure and record the water depth at each location using the wading rod The water depth is the point where the water surface intersects the rod Observations should be made to the nearest centimeter This is used to calculate the total cross sectional area 5 Where water depth in the vertical is 1 0 m observations are made at 0 6 depth from the water surface To po
181. irphoto flown August 2012 3 Future pit designs from October 2012 7 MINTO MINE Date March 2013 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Appendix 4 Physical Monitoring Plan June 2014 capstone MINTO MINE Physical Monitoring Plan Prepared by Minto Explorations Ltd Minto Mine May 2014 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Table of Contents 1 e ERE ETT DSL ODDO LLLI 1 2 Str ct res Monitored ii op reato ae 2 3 Design References RUE ERI a PE PEU EREER 4 4 Rolesand tr teet eee 5 5 dnspectlonDsc ie ce roter dera eater te alas eae teen aaa eRe et 6 EM JNSCFUMENT ALON 7 6 1 Location and Installation Information 7 6 1 1 ree 7 6 1 2 eec e re tec e 8 6 1 3 TRES TONS 10 6 1 4 Vibrating Wire 11 7 Procedures and Documentation esses sees E ne nest 12 7 1 Data Collection Schedule 5 5 1 0 12 7 2 Data Collectiori ProcedUres iei eti ei erre eere 12 7 3 Documentation scoir na a e a a R EE Raa
182. is width should be equal to the sum of half the distance between adjacent verticals The velocity in the two half widths next to the banks can be estimated For a detailed description of the mid section method of computing discharge measurements please refer to the Manual of British Columbia Hydrometric Standards RISC 2009 Table 1 illustrates an example of a completed discharge calculation for a current meter measurement Table 1 Discharge Calculation Site Start Time d Gauge 0 249 Date Observations CB PE Tape Velocity Discharge Distance m Depth m Width m Area m 2 m 3 s 0 46 L 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1 30 140 1 50 1 60 1 70 ss 1 80 1 90 2 00 Total Discharge m9 00320 12 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Continuous Water Level and Inline Pipe Flow Meter Data Continuous water level readings from pressure sensors and inline flow meters are downloaded and compensated as needed using the manufacturer s software At this time instructions for compensating this data are not included in this SOP All continuous water level readings from pressure sensors require reference to the water level during station visits Therefore staff gauge readings must be accurate and always documented including the time of the observation Basically water level data is compensated by calculating the difference between the pressure sensor water depth and staf
183. isors are responsible for ensuring field staff understand the requirements of the WUL and that all procedures and protocols are being followed and documented Supervisors are responsible for ensuring data collection and data management procedures are being carried out consistently and identifying variance from standard procedures Supervisors are responsible for providing appropriate levels of training to all field staff and ensuring that all field staff are proficient to carry out their responsibilities or are adequately supervised This is especially important when field staff are processing data and completing field activities such as station installs and surveying It is the responsibility of supervisors to compare water quantity data collected throughout the year and review trends outliers etc This is often completed with input from external professionals Supervisors must also periodically review data collection procedures including the content of this SOP to ensure the best methods are being used and that adequate QA QC is being incorporated into the program 3 Hydrometric Station Installation There are many factors to consider when selecting and installing a hydrometric station in an open channel Hydrometric stations at Minto typically consist of a pressure sensor and data logger installed in a perforated PVC tube This instrumentation is accompanied by a staff gauge All components are attached to a wooden frame and anchored to shore Mi
184. ity Table5 Baseline Groundwater Monitoring Requirements Baseline Monitoring Location Monitoring Monitoring Monitoring Installation Required Frequency North of Proposed Minto North Pit MW 09 03 Water Level Spring Fall Water Quality East of Proposed Ridgetop North Pit MW11 02 Water Level Spring Fall MW11 03 Water Quality South of Proposed Ridgetop South MW11 04 Water Level Spring Fall Pit Water Quality 3 4 Analytical Suite for Groundwater Samples Groundwater samples will be collected and analyzed for the parameters identified as suites B N and FP in Appendix 3 of Water Use Licence QZ96 006 Amendment 8 These analytical suites are defined as follows e Suite B Physical Parameters Conductivity Total Dissolved Solids Alkalinity Sulphate ICP Scan Dissolved Metals e Suite N Nutrients Ammonia N Nitrate N Nitrite N and Phosphorous e Suite FP Field Parameters In situ parameters pH Conductivity and Temperature Groundwater samples will be submitted to an accredited laboratory for analysis 3 5 Quality Assurance Field duplicate samples will be collected at a frequency of one field duplicate sample per ten groundwater monitoring samples One field blank sample will be collected during each Spring Fall groundwater monitoring event Field blank samples will be collected from deionized water supplied by the analytical laboratory using the exact methods employed to collect groundwater monitoring samples
185. le by the aluminum crimps 3 vk SETA Ce OS lt E i Teo 13 Connect the Field PC to the reel Use the pen attached to the field PC and press Connections 1 9 ense Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 14 Once connected hit Readings 15 At each depth allow the A and B readings as well as the noise level become stabilized before you accept the readings Ideally noise level should be at or below 30 pV Digital Inclinor Eh GP 2 5 26 16 Wear gloves as the Envirobind inside the inclinometer casing can be sticky and irritable Pull up gently to the next marker and let the aluminum crimp to sit on the metal grip Wait for the readings and noise level to stabilize and then hit Accept lt d a E v s 4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 17 If you accidentally pull the probe too far more than an inch lower the probe back down to the previous bead then pull up to the bead you want to measure This will ensure that the readings remain consistent 18 At each 5m mark check that you are at the right location If you miss or overpass a reading go back to the previous 5m depth For examples if something goes wrong at 41 5m go back to 45m and drop the cable to 45 5m Then gently pull up to 45m and hit Accept again There are arrow keys on the Field PC which allow you to adjust y
186. lected in the field is important in hydrological monitoring programs Standard protocols and systems are in place to ensure ease of data processing and less likely prone to error Processing of data can involve returning to the original field notes to cross check suspicious values or to analyze site conditions that might have been responsible for anomalies in the logger records Therefore supportive values and observations are well documented by field staff All water quantity data including field notes photographs and datalogger download files are carefully handled organized and stored to ensure the information can be located for future use 9 3 2 Meteorology Monitoring Program QA QC Monitoring of meteorological parameters is done with a research grade weather station containing Campbell Scientific meteorology instrumentation a data logger and a 10 m tower The station is located approximately 100m northeast of the airstrip and has been operating since 2005 Data from the station has been collected regularly and is used for prediction and operational planning purposes QA QC of data by Minto staff includes validation of equipment by comparing trends in the data sets for the meteorological station Furthermore a monthly review of the data takes place as a result of monthly reporting activities Along with the QA QC performed by Minto staff the compiled data is frequently sent to external consultants for further QA QC to ensure the data is represen
187. line Groundwater Monitoring Baseline Monon Monton Monitoring Required Monitoring location Installation Frequency North of Proposed 09 03 Minto North Pit East of Proposed MW11 02 1 Water Level Twice yearly Ridgetop North Pit MW11 03 2 Water Quality Once TH spring 1 and once in fall South of Proposed MW11 04 Ridgetop South Pit June 2014 14 6946000 6945000 6944000 383000 amp ox 4 So th est tl DN d 4 x Of ii E d i on ee P a 2 p XE ea a y j 1 13 000 384000 385000 386000 387000 d Water Storage Pond E e fi CH out ii Main Pit LL Sa Dry Stack ae UR Tailings Storage j ATA F wt 4 4 YF A EY 118 A N Ridgetop North e cad 7 9 Legend MP Well Functional MP Well Non functional Piezometer with thermistor Functional S V Ridg top t ME ib j 0 A TA Drivepoint Functional X2 Notes Ca pstone Site Map 500 Meters 1 Data presented in NAD 1983 UTM Zone 8N MINTO MINE Showing Well Locations OPERATED BY MINTO EXPLORATIONS LTD 2 Base airphoto flown August 2012 3 Future pit designs from October 2012 MINTO MINE Date January 2014 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 2 4 Seepage Monitoring Program The objective of the Seepage Monitoring Program is to assess and monitor potential acid rock
188. located within Selkirk First Nation SFN Category A Settlement Land Parcel R 6A approximately 240 km northwest of Whitehorse Yukon and 41 km southwest of Pelly Crossing Figure 1 1 After crossing the Yukon River either by summer barge or winter ice bridge access to the mine site is via a 27 km access road along the Yukon River and up the Minto Creek drainage Figure 1 2 Crews and supplies are transported by air during the spring thaw and fall freeze up The Minto Mine is an existing and fully operational copper and gold mine The Minto Mine is currently an open pit and underground mining operation with conventional crushing grinding and flotation to produce copper concentrates with significant gold and silver credits Concentrates are exported internationally via the Port of Skagway Alaska for smelting and sale Minto Mine is currently in Phase IV of development and is currently in assessment and subsequent permitting for Phase V VI expansion June 2014 2 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Alaska t t A Sy MINTO MINE Figure 1 1 Minto Mine Location 2 j Northwest Territories LEGEND o Capital City Yukon O Yukon Townsite Dk Capital City Alaska Alaska Highway Primary Highway Unpaved Road Ice Road Ferry Route National Territorial Park Yukon Highways
189. losure Not all of the situations encountered by field staff have been included in this document e g water column depth profile sampling as they are not part of routine sampling events A JHA should be conducted prior to completing any new or irregular task to identify what work will take place list all of the potential hazards that could be encountered during the work and the measures necessary to avoid or mitigate the hazards 8 References Resources Information Standards Committee RISC 2003 Ambient Freshwater and Effluent Sampling Manual Environment Canada 2001 Guidance Document for the Sampling and Analysis of Metal Mining Effluents Canadian Council of Ministers of the Environment CCME 2011 Protocols Manual for Water Quality Sampling in Canada 16 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 1 Current Maxxam Contact and Shipping Label 17 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Minto Explorations Ltd COC Suite 900 999 West Hastings Street Vancouver BC V6C 2W2 Mine Tel 604 759 0860 Maxxam Analytics Inc attn Kelly Janda 4606 Canada Way Burnaby BC V5G 1K5 Ph 604 638 5019 Air North Cargo Please deliver to address above c o Air North Account 15979218 Regular Delivery 18 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Appendix 2 Minto Environment Water Quality Field Form 19 MINTO EXPL
190. ly Agrostis stolonifera Creeping Bent Grass P P nr revegetation 5 Grass family Aira caryophyllea Silver Hair Grass X 3 nr transportation 1946 5 Grass family Alopecurus geniculatus Water Foxtail R 2 49 agriculture 1899 3 Grass family Alopecurus pratensis Meadow Foxtail C 1 52 agriculture 1947 3 Grass family Avena fatua Wild Oasts R 8 nr agriculture 1943 5 Grass family Avena sativa Cultivated Oats X 3 nr agriculture transportation 1949 4 Grass family Bromus carinatus California Brome R 2 revegetation 1995 5 Grass family Bromus japonicus Japanese Brome X 3 revegetation 2003 5 Grass family Bromus racemosus Bald Brome X 3 agriculture 1902 1 Grass family Bromus inermis Smooth Brome C 1 62 agriculture revegetation 1943 5 Grass family Bromus secalinus Rye Brome X 3 nr agriculture 1902 5 Grass family Bromus tectorum Downy Brome X 3 78 agriculture 1916 2 Grass family Dactylis glomerata Orchard Grass R 3 53 revegetation 2000 5 Grass family Deschampsia danthonioides Annual Hairgrass X 3 nr unknown 1902 5 Grass family Deschampsia elongata Slender Hairgrass X 3 35 transportation railway 1902 Yukon Introduced Plants January 2012 Page 1 Species Common Name Abundance Persistence Alaska Rank Date of first collection 2 Grass family Elymus repens Creeping Wild Rye U 2 59 revegetation 1949 2 Grass f
191. ly when supportive values and observations have been well documented The steady improvement of quality assurance protocols involves developing more detailed and program specific verification processes and automated checks as well as peer reviews and audits by external professionals on a regular basis Effective quality assurance will identify potential problem areas and necessary corrections to procedures and data management and facilitates evaluation and improvement of the monitoring program Quality Assurance on Data Examination and evaluation of field data and data entry is an integral part of quality control All data should be reviewed to determine if it is comparable to past recordings While it is not possible to check all aspects of input data calculations and interpretations checks can be performed on selected sets of data at appropriate intervals A review of work procedures and data collection methods will identify potential sources of error All water quantity data including field notes photographs and datalogger download files are carefully handled organized and stored to ensure the information can be located for future use Corrections or adjustments to abnormal or inaccurate data logger records rely on the availability of complete documentation 10 References Guidance Document for Flow Measurement of Metal Mining Effluents Environment Canada 2001 Manual of British Columbia Hydrometric Standards Resources Information Standar
192. mes frozen MW11 02 NE of Ridgetop North Pit Operational sometimes frozen MW11 03 SE of Ridgetop North Pit Operational sometimes frozen MW11 04A S of Ridgetop South Pit Operational MW12 DP1 West of Southwest Waste Dump Operational MW12 DP2 West of Southwest Waste Dump Operational MW12 DP3 West of Southwest Waste Dump Operational MW12 DP4 Downgradient of MVF DSTSF Operational MW12 05 Downgradient of WSP Operational MW12 06 Downgradient of MVF DSTSF Operational MW12 07 Downgradient of Main Pit Operational Unnamed auxiliary well near mill Mill area Operational Unnamed camp water well Camp area Operational 08SWC270 Southwest Waste Dump area Destroyed 08 271 Southwest Waste Dump area Destroyed 08SWC272 Southwest Waste Dumparea Destroyed Buried by waste rock 08 273 Southwest Waste Dump area Destroyed 08SWC274 Southwest Waste Dump area Destroyed O08SWC275 Southwest Waste Dump area Destroyed O08SWC277 Southwest Waste Dump area Destroyed 08SWC278 Southwest Waste Dump area Destroyed 08SWC280 Southwest Waste Dumparea Destroyed Buried by waste rock Table2 Summary of Existing Vibrating Wire Piezometers Minto Mine Vibrating Wire Piezometer Name Location Status DSP 1 DSTSF area Operational DSP 2 DSTSF area Operational DSP 3 DSTSF area Operational DSP 4 DSTSF area Operational SDP 1 Southwest Dump area Destroyed SDP 2 Southwest Dump area Operational SDP 3 Southwest Dump area Operational SDP 4 Southwest Du
193. mon roe Data is collected on the fish caught including the following parameters Captured fish data Trapping location information In situ water quality Fish identification GPS coordinates Temperature Number of fish caught Physical description Dissolved oxygen Fork length mm or total length mm Photo of site Conductivity Abnormalities Weather conditions How Total length measurement is for sculpins or burbot e Following data collection all fish are released at the same location as where they were trapped e Data analysis will be performed to quantify relative use of Minto Creek and will be reported through determination of Catch Per Unit Effort CPUE Annual reporting will also include a description of water chemistry in the receiving environment and mine discharge actions during the open water period 6 1 4 Periphyton Monitoring Program The objective of the Periphyton Monitoring Program is to monitor the condition of the periphyton community in Minto Creek Periphyton is the assemblage of algae bacteria fungi and meiofauna attached to submerged substrate in freshwaters However periphyton communities are generally characterized on the basis of the attached algae community Attached algal communities are representative of the lowest trophic level and are indicators of productivity Periphyton data analysis is performed using temporal and spatial comparisons control impact desig
194. mp area Operational Note installations at the Main Water Dam are excluded from this table 2 1 3 Ground Temperature Monitoring Several thermistors ground temperature cables have been installed during geotechnical investigations at Minto Mine These instruments provide measurements of temperature at various depths below ground at each location but do not provide any piezometric data Table 3 provides summary information about the existing thermistor cables Table3 Summary of Existing Ground Temperature Cables Minto Mine Ground Temperature Cable Name Location Status DST 1 DSTSF area Destroyed DST 2 DSTSF area Destroyed DST 3 DSTSF area Operational DST 4 DSTSF area Operational DST 5 DSTSF area Destroyed DST 6 DSTSF area Operational DST 7 DSTSF area Destroyed DST 8 DSTSF area Destroyed DST 9 DSTSF area Destroyed DST 12 DSTSF area Operational 96 G08 DSTSF area Destroyed MWPT 1 Mill Water Pond area Operational MWPT 2 Mill Water Pond area Operational SDT 1 Southwest Dump area Operational SDT 2 Southwest Dump area Operational SDT 3 Southwest Dump area Operational SDT 4 Southwest Dump area Operational 08SWC271 Southwest Dump area Destroyed 08SWC274 Southwest Dump area Destroyed 08SWC275 Southwest Dump area Destroyed O8SWC277 Southwest Dump area Destroyed 08SWC278 Southwest Dump area Destroyed 08SWC280 Southwest Dump area Buried under Southwest Dump Note
195. n Periphyton sampling for community assessment is conducted by collecting randomly selected rocks on suitable substrate cobbles Periphyton samples are collected from Lower Minto Creek in the vicinity of water quality station W2 and at a reference area with similar habitat characteristics i e substrate texture water velocity water depth At each station approximately 2 5 grams of periphyton sample is collected Chlorophyll a density is measured in periphyton Supporting habitat measures and in situ water quality parameters is measured concurrent with benthic invertebrate samples and described above in Section 6 1 2 Sampling methodology for community assessment is as follows e Collect sample from suitable substrate through scraping or brushing June 2014 37 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine e Samples from each station are combined till approximately 2 5 grams of periphyton sample is collected e Repeat sample procedure at the same sample site and target five replicate samples e Place scraped sampled into jars preserve with Lugol s iodine solution labeled with station name and replicate number e Store sample jars in a cool dark place e Samples are shipped to a plant taxonomist for identification e Laboratory taxonomy is conducted to the lowest practical level Sampling methodology for Chlorophyll a is as follows e Collect sample from suitabl
196. n benthic invertebrates and fish and fish habitat The Environmental Effects Monitoring Program is required under the MMER of the federal Fisheries Act Government of Canada 2002 Both programs focus on aquatic effects of mine effluent in Upper Minto Creek discharge sites Lower Minto Creek receiving environment sites and comparable unaffected areas reference sites 6 1 Biological Monitoring Program The Biological Monitoring Plan includes monitoring for sediment benthic invertebrates periphyton and fisheries and each program is detailed below Monitoring is conducted during the open water season on the Minto Creek watershed and reference systems where applicable Biological monitoring program sampling locations and frequencies are summarized in Table 6 1 and the sample stations are shown on Figure 6 1 Monitoring and measurements are taken according to the Canadian Aquatic Biomonitoring Network Field Manual Environment Canada 2011 Table 6 1 Biological Monitoring Program Sample Locations and Frequency Monitoring Locations Frequency Requirement Affected Area Reference Area Upper Minto Creek near water quality station W3 Sediment Monitoring Lower Minto Creek downstream of water quality station W2 Upper McGinty Lower Wolverine Creek Annually late August or Benthic Invertebrate Lower Minto Creek Lower Wolverine early September Community downstream of water Creek Monitoring quality station W2
197. n collected during any striping activities will allow for a natural seed bank and reduce the need for imported seed mixes and fertilizers when reclamation is required Stripping activities should be monitored by an environmental employee to ensure that quality material is being stored separately Suitable soils should be placed directly on reclamation slopes whenever possible to reduce re handling and increase viability of natural seed reserves within the soil matrix Salvaged soils storage should be planned with the Mine Technical department to ensure it is stored in such a manner that do not require temporary seeding vegetated in order to prevent erosion 7 1 2 Invasive Plants Monitoring Currently the extent and location to which invasive plants may exist at the Minto Mine is unknown Vegetation surveys have been completed since September 2012 on the Main Waste Dump MWD and monitoring will be expanded to include areas where there is high visitor traffic recently exposed areas and areas that have high recently reclaimed This will allow Minto to better track locations and distribution of any established invasive species Vegetation surveys will be conducted annually in high risk areas and frequency will be reduced once areas are no longer considered high risk e g low traffic or some amount of time after reclamation has been completed Vegetation surveys will identify vegetative cover and species types within the dry land seed mix and
198. nal Reporting Reporting Surface water quality and Monthly data Monthly data submission hydrology compilation Quarterly report Annual report McGinty Creek surface water quality and flow ian Seepage Annual report Vibrating wire piezometer and Monthly data submission thermistor Quarterly report Groundwater Annual report MCDS seepage Annual report Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan Monitoring Program Internal Reporting Reporting Requirements External Reporting Metal Mine Effluent Regulations ABA monitoring program Quarterly amp Annually to Environment Canada s Regulatory Information Submission System RISS basis March and YWB a semi annual September Any divergence from the program must be reported within 30 days Waste rock management verification program Climate Annual report Monthly data submission Quarterly report Annual report Snow surveys Annual report Deformation monitoring Annual report program Weekly Highwall inspection Every Sunday report Semi annual geotechnical review report Biological monitoring program EEM Program Invasive species monitoring Semi annually after spring melt May June and before freeze up September Annual report Subsequent Interpretative Reports are to be submitted within
199. nclusive Bottle Filter Preservative Code plastic Physical Parameters RAW TSS TDS pH EC hardness 1L Not required Not required alkalinity Nutrients Anions RAW SO Cl Fl NO NO3 500 mL Not required Not required Nutrients Anions TP NH3 120 mL Not Required 1 mL Sulphuric Acid H2SO4 Total Metals TM Al As Cd Cr Cu Fe Hg Pb 120 mL Not required 1 mL Nitric Acid Mn Mo Ni Se U Zn Na K Ca HNO3 Mg S Dissolved metals DM Al As Cd Cr Cu Fe Hg Pb 120mL Required 1 mL Nitric Acid Mn Mo Ni Se U Zn Na K Ca 0 45 um filter HNO3 Mg S Dissolved Organic DOC DOC 120 mL Required 1 mL Sulphuric Acid Carbon 0 45 um filter H2SO4 Total Organic TOC TOC 120mL Not required 1 mL Sulphuric Acid 10 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Carbon H2SO4 Cyanide CN CN 120mL Not Required 1 mL Sodium Hydroxide NaOH Radium Ra 226 Ra 226 1L Not required 4 mL Nitric Acid HNO3 Table 2 Sample Requirements for Samples Analyzed by Minto Lab Analysis Name Analysis Parameters Bottle Filter Preservative Code plastic Physical RAW TSS NO2 NO NH 1L Not required Not required Parameters Nutrients Total Metals TM Al Cd Cu Se 120mL Not required 1 mL Nitric Acid HNO3 Dissolved metals DM Al Cd Cu Se 120mL Required 1 mL Nitric Acid 0 45 um filter HNO3 Under Snow or Ice
200. ncouver Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Ministry of Environment 1981 Snow Survey Sampling Guide Province of British Columbia Water Management Branch Surface Water Section Victoria Ministry of Environment 2009 Manual of British Columbia Hydrometric Standards Science and Information Branch Victoria Resources Information Standards Committee Minto Explorations Ltd 2014 Minto Mine Phase V VI Expansion Waste Rock and Overburden Management Plan Yukon Government 2002 Contaminated Sites Regulations O 1 C 2002 171 Yukon Government 2013 August Plan Requirement Guidance for Quartz Mining Projects Retrieved from http www yukonwaterboard ca forms quartz Plan 20Requirement 20Guideline 20for 20 Quartz 20Mining 20Projects 20 20August 202013 kh pdf Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Appendix 1 Minto Mine Surface Water Quality Monitoring Standard Operating June 2014 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP CAPSTONE MINING CORP MINTO MINE MINTO MINE SURFACE WATER QUALITY MONITORING STANDARD OPERATING PROCEDURES Prepared by Minto Explorations Ltd October 2012 TABLE OF CONTENTS T ese UL 4 AME CIeqmirge 4 Field Stalt ti ieri Pont
201. nd 386402 6945559 Discharge from the Water Storage Pond 386679 6945664 Water Storage Pond dam seepage 386679 6945664 Headwaters Minto Creek north west fork 383693 6945026 Upgradiant of South Diversion Ditch 385351 6944072 W35 South Diversion Ditch 385223 6944427 392584 6948402 387546 6946034 384181 6944708 June 2014 5 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine UTM Coordinates Station Description Zone 8 Easting Northing Minto Creek detention structure MCDS 385892 6945191 100 m downstream of MCDS W37 collection sump and upstream of Water Storage Pond Area 2 Pit and Area 2 Pit Tailings Management Facility 384912 6944068 Minto Creek downstream of W7 and W6 tributaries 387873 6946301 Area 118 Pit water 386180 6945294 Minto Creek approximately 50 m downstream of the toe of the Water Storage Pond Dam and downstream of the inflow of the 386747 6945682 treated water Minto Creek upstream of Canyon 390967 6947528 Treated water from water treatment plant 385126 6945154 Area 2 Stage 3 Pit Ridgetop North Pit and Ridgetop North Pit Tailings Management Facility Ridgetop South Pit Main Dam seepage Tailings Diversion Ditch Tributary on the south side of Minto Creek downstream of W3 Tributary on the south side of Minto Creek downstream
202. nd Dry Stack Tailings Storage Facility EBA File W14101168 013 September 14 2011 Geotechnical Design Ice Rich Overburden Dump Minto Mine Minto YT EBA file 1200173 January 2006 Ice Rich Overburden Dump Containment Berm Inspection Report Minto Mine Site Minto Yukon EBA File 1200173 001 June 19 2007 Minto Project Minto Creek Detention Structure Seepage Monitoring Program EBA File W14101068 001 October 25 2011 Geotechnical Design Proposed Reclamation Overburden Dump Minto Mine Yukon EBA File W14101068 004 February 2008 Reclamation Overburden Dump Expansion Geotechnical Design Report EBA File W14101068 0040 June 29 2010 Monitoring Inspection Guidance Reports SWP Area 2 Pit Wall and Crown Pillar Monitoring Minto January 30 2014 Operation Maintenance and Surveillance Manual Dry Stack Tailings Storage Facility Minto Mine YT Revision 2011 1 EBA File W14101068 001 January 2011 Geotechnical Design Ice Rich Overburden Dump Minto Mine Minto YT EBA file 1200173 January 2006 EBA 2007 Construction Quality Assurance Manual for Waste Dumps Tailings Water Dam Mill Water Pond and Diversion Ditch Minto Project Yukon EBA File 0201 95 11509 August 1997 Minto Project Minto Creek Detention Structure Seepage Monitoring Program EBA File W14101068 001 October 25 2011 Reclamation Overburden Dump Expansion Geotechnical Design Report EBA File W14101068 0040 June 29 2010
203. ndix 1 Preparation for water quality sampling must also include provision for quality control samples The number of quality control samples taken must correspond to a minimum of 1096 of the total number of samples taken for all sampling events The following is a list of equipment and sampling supplies regularly used to complete surface water quality monitoring e Sample bottles and labels e Field notebook and or field forms e Water quality meter e Nitrile gloves e Syringes and filters e Sample preservatives e Cooler and sufficient ice packs e Deionized water MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Cooler labels and laboratory Chain Of Custody e Chisel axe and or ice auger when sampling under ice e Spare parts and batteries General field gear typically includes e PPE e Radio e Rubber boots or waders e Camera e Pencils pens permanent marker e Sample site map GPS e Flagging tape e Multi tool e First aid kit e Appropriate clothing e Water and food Maintenance of Field Instruments All instruments used for performing field measurements are stored and calibrated in accordance with manufacturer s specifications Proper maintenance of field instruments is very important as instruments must be in good working condition in order to produce accurate readings Field staff are trained how to calibrate and use all water quality field instruments prior to going in the fiel
204. nfo Ji Ground Temp Cables 2008 J eld meat BI GTC Piezometer Instrumentation Area 2 Pit 3 GTC Piezometer Instrumentation DSTSF E Minto Master MWP Instrumentation Spreadsheet E Minto Master WSPD Instrumentation Spreadsheet E Minto Pit Geotech Monitoring 2009 5 Open the tab Piezo Readings n 15 16 i 18 120 Yai 122 123 124 125 125 127 128 123 130 11 132 13 134 135 136 137 138 133 ol 1 Ready a gt gt Wm X ful Date modified 2013 09 27 10 51 2013 11 20 7 20 AM 2013 09 28 4 49 PM 2013 11 16 311 PM 2013 11 17 6 45 AM 2013 09 27 9 25 AM 2013 11 21 9 33 AM 2013 11 16 5 53 PM 2013 11 17 8 41 AM 2010 05 27 5 19 PM Type File folder File folder File folder File folder Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Microsoft Excel 97 Size 1 650 413 KB 2 894 1 017 KB 3 842 KB 107 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 6 Inanew row input the date time barometric pressure B unit and temperature readings for each instrument STC Pi Home Insert Page Layout Formulas Data Review View Cut B amp Cu Tahoma 110 lA A Wrap Text General a a M cs e aste E 0 4 o is df Format Painter Bgiu
205. ng potential impacts on groundwater from the mine project components including but not necessarily limited to the DSTSF mill area Main Pit Area 2 Pit waste rock dumps and Water Storage Pond a The monitoring network shall include stations down gradient of the Water Storage Pond as well as stations down gradient of the pits to provide for the adequate assessment of the potential impacts of the long term storage of tailings in the pits on the downstream environment b The plan must be developed by a qualified professional specializing in hydrogeology and shall include specific groundwater monitoring locations monitoring schedule and parameters This updated Groundwater Monitoring Plan GMP provides details of the current monitoring system and monitoring schedule designed to meet the requirements of Water Use Licence QZ96 006 2 Groundwater related Monitoring 2 1 1 Groundwater Wells A variety of groundwater wells have been installed at the Minto Mine site over the life of the project These wells have been installed for a range of purposes and the information available for these wells varies case by case Table 1 provides summary information of the installed wells Individual reports describing the drilling results installation and preliminary testing results are provided in the Reference section of this GMP 2 1 2 Vibrating Wire Piezometers Several vibrating wire piezometers have been installed during geotechnical investigations
206. nitoring Program e WUL 87 ABA Monitoring Program Appendix 6 Chief Geologist 3 1 Waste Rock Verification Program WUL 95 Chief Engineer 3 2 Meteorological Monitoring Program June 2014 1 Minto Explorations Ltd Minto Mine Environmental Monitoring Surveillance and Reporting Plan T Regulatory Monitoring EMSPRP Regulatory Monitoring Programs Licence or lt Section Regulation Climate Monitoring Program WUL 79 Environment Manager 4 1 Snow Survey Program WUL 79 Environment Manager 4 2 Mine Infrastructure and Workings Monitoring Program WUL 80 81 Physical Monitoring Plan 82 90 Chief Engineer 5 Appendix 2 Aquatic Environmental Monitoring Biological Monitorin Environment Manager 6 1 8 86 Environment Effects Monitoring MMER Environment Manager 6 2 Terrestrial Environmental Monitoring Invasive Species Monitoring Program QML Environment Manager 7 1 Wildlife Monitoring Program QML Environment Manager 7 2 Erosion and Sediment Control Program QML Environment Manager 7 3 Reclamation Effectiveness Monitoring Program QML Environment Manager 8 1 1 Project Description The Minto Mine is a copper gold mine owned 100 by Minto Explorations Ltd Minto a wholly owned subsidiary of Capstone Mining Corporation Capstone The Minto Mine commenced commercial production in October 2007 The Minto Mine is
207. nitoring Program is comprised of two main components e The Acid Base Accounting ABA Program which provides for monitoring of overburden and waste rock derived from the underground and open pit mining operations and tailings from milling and e The Waste Rock Management Verification Program These programs are detailed in sections 3 1 and 3 2 Details relating to the waste rock sampling and analysis is provided in the Minto Mine Phase V VI Expansion Waste Rock and Overburden Management Plan WROMP Minto Explorations Ltd 2014 3 1 Acid Base Accounting ABA Monitoring Program 3 1 1 Internal On site Monitoring On site ABA monitoring will be carried out on drill cuttings from every blast hole as is currently the practice for Phase IV operations Samples are collected for grade control purposes and a portion of each sample is sent for total sulphur S T and total carbon C T analyses at the on site laboratory Following analysis S T and C T results are converted into equivalent acid potential AP S T and neutralization potential NP C T values and NP C T AP S T ratios are calculated for each sample The NP C T AP S T values are plotted for each drill hole in a given blast pattern along with other assay results and mine geologists use the mine s grade control software to define polygons outlining contiguous zones of waste rock types either bulk waste or waste with an NP C T AP S T ratio less than 3 0 Additional det
208. nospeliensis Rabbit s foot Grass X 3 unknown 1902 3 Grass family Psathyrostachys Russian Wild Rye R 2 nr agriculture 1960 7 Grass family Puccinellia distans Spreading Alkali Grass C 1 3 Grass family Schedonorus arundinaceus Tall Fescue R 2 66 revegetation 1980 5 Grass family Secale cereale Common Rye R 3 nr agriculture transportation 1949 5 Grass family Setaria viridis Green Bristle Grass X 3 nr transportation 1998 4 Grass family Thinopyrum intermedium Intermediate Wheat Grass R 2 transportation 1999 2 Grass family Thinopyrum ponticum Tall Wheat Grass R 1 nr agriculture 2000 5 Grass Family Triticum aestivum Common Wheat X 3 nr agriculture transportation 1943 5 Grass family Vulpia myuros Rat tail Six weeks Grass X 3 nr unknown 1902 5 Nettle family Urtica urens Burning Nettle X 3 nr unknown 1904 5 Goosefoot family Atriplex patula Spear Saltbush X 3 nr unknown 5 Knotweed family Fagopyrum esculentum Buckwheat X 3 nr agriculture birdseed 1997 2 Knotweed family Polygonum achoreum Leathery Knotweed U 1 transportation 1997 y Knotweed family Polygonum buxiforme Prairie Knotweed C 1 45 transportation 3 Knotweed family Fallopia convolvulus Eurasian Black bindweed C 1 50 horticulture 1975 5 Knotweed family Polygonum fowleri Fowler s Knotweed X 3 unknown 1943 6 Knotweed family Persicaria maculosa Spotted Lady s Thumb F 4 47 3 Knotweed family Rheum rhaponticum Rhubarb C 1 nr agriculture 1999 4 Knotweed family Rumex acetosella Sheep Sorrel R 2 51 unkn
209. nr revegetation 1947 4 Grass family Agropyron fragile Siberian Wheat Grass U 2 nr revegetation 1949 4 Grass family Agrostis capillaris Colonial Bent Grass R 2 nr agriculture revegetation 1993 3 Grass family Agrostis gigantea Redtop R 2 nr revegetation 1916 P Grass family Agrostis stolonifera Creeping Bent Grass P P nr revegetation 5 Grass family Aira caryophyllea Silver Hair Grass X 3 nr transportation 1946 5 Grass family Alopecurus geniculatus Water Foxtail R 2 49 agriculture 1899 3 Grass family Alopecurus pratensis Meadow Foxtail C 1 52 agriculture 1947 3 Grass family Avena fatua Wild Oasts R 8 nr agriculture 1943 5 Grass family Avena sativa Cultivated Oats X 3 nr agriculture transportation 1949 4 Grass family Bromus carinatus California Brome R 2 revegetation 1995 5 Grass family Bromus japonicus Japanese Brome X 3 revegetation 2003 5 Grass family Bromus racemosus Bald Brome X 3 agriculture 1902 1 Grass family Bromus inermis Smooth Brome C 1 62 agriculture revegetation 1943 5 Grass family Bromus secalinus Rye Brome X 3 nr agriculture 1902 5 Grass family Bromus tectorum Downy Brome X 3 78 agriculture 1916 2 Grass family Dactylis glomerata Orchard Grass R 3 53 revegetation 2000 5 Grass family Deschampsia danthonioides Annual Hairgrass X 3 nr unknown 1902 5 Grass family Deschampsia elongata Slender Hairgrass X 3 35 transportation railway 1902 Yukon Introduced Plants January 2012 Page 1 Species Common Nam
210. ns Ltd Minto was issued Water Use Licence QZ96 006 Amendment 8 on October 18 2012 Amendment 8 included a number of conditions including Condition 96 which requires Minto to file an updated Groundwater Monitoring Plan within 6 months of the effective date of the licence amendment This document constitutes the required updated plan For reference the text of Condition 96 is as follows Condition 96 Within 6 months of the effective date of Amendment 8 the Licensee shall submit to the Board an updated detailed Groundwater Monitoring Program Plan for the purpose of monitoring potential impacts on groundwater from the mine project components including but not necessarily limited to the DSTSF mill area Main Pit Area 2 Pit waste rock dumps and Water Storage Pond a The monitoring network shall include stations down gradient of the Water Storage Pond as well as stations down gradient of the pits to provide for the adequate assessment of the potential impacts of the long term storage of tailings in the pits on the downstream environment b The plan must be developed by a qualified professional specializing in hydrogeology and shall include specific groundwater monitoring locations monitoring schedule and parameters This updated Groundwater Monitoring Plan GMP provides details of the current monitoring system and monitoring schedule designed to meet the requirements of Water Use Licence QZ96 006 2 Groundwater related Monitoring
211. ns of As Cu CN Pb Ni Zn TSS Ra226 Dissolved oxygen Cyanide analysis is not required if cyanide is not used as June 2014 38 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine pH process reagent Hardness Ra226 analysis may be reduced to quarterly if the concentration Alkalinity is 0 037 Bq L in 10 consecutive tests Conductivity Water quality monitoring results are reported annually through Environment Canada s RISS website 6 2 2 EEM Biological Monitoring Program The EEM Biological Monitoring Program outlines fish population fish tissue and benthic invertebrate tests conducted under Schedule 5 Part 2 of the MMER Government of Canada 2002 Minto Mine has submitted the results of the First Study Design and one subsequent study design and has submitted details of a third study design This third study will be conducted in the 2014 field season and the results reported to Environment Canada in early 2015 The study design is currently under review by Environment Canada The Cycle 3 EEM is an Investigation of Cause IOC into the consistent difference in benthic invertebrate community composition in Minto Creek relative to reference creeks as detected by the Bray Curtis Index of Dissimilarity Bray Curtis distance To determine if differences are due to the comparison of the exposure site to a small number of reference sites or to a slight min
212. ntative and high quality The steady improvement of quality assurance protocols involves developing more detailed and program specific verification processes and automated checks as well as peer reviews and audits by external professionals on a regular basis Effective quality assurance will identify potential problem areas and necessary corrections to procedures and data management and facilitates evaluation and improvement of the monitoring program Quality Assurance on Data Examination and evaluation of field data and data entry is an integral part of quality control While it is not possible to check all aspects of input data calculations and interpretations checks can be performed on selected sets of data at appropriate intervals A review of work procedures and data collection methods will identify potential sources of error Reported water quality data is reviewed and evaluated by Minto Mine staff on a monthly and annual basis The water quality database is audited by Minto Mine and a professional consultant on an annual basis As mentioned previously the Minto water quality database is checked on a monthly basis and is completed by cross checking 15 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP the database with the sample tracking and log spreadsheet If inconsistences are found further investigation is performed using field notes COC and lab result files depending on the nature of the error 7 C
213. nto currently consults with external professionals regarding the establishment of new stations however the following guidelines will be considered by trained Minto staff when selecting and installing hydrometric stations e Site can be accessed safely by field staff through the full range of stage e Siteislocated where the stream cross section is stable typically in a pool or run avoiding turbulent riffle or cascade sections e The staff gauge and pressure sensor are able to record accurate water levels through the full range of stage and discharge can be accurately measured at all stages using acceptable flow measurement methods e Allstation components are structurally sound and will not move in any direction e Install staff gauges so they are protected from damage by floating debris and ice and are not affected by drawdown or pileup of water It is typically easiest to read the staff gauge with the face parallel to the current MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP e ideally the depth and velocity of the stream should be fairly uniform with good cross sections for flow measurements using a flow meter e g single channel no undercut banks minimal obstructions no backwater eddies and e No tributaries exist between the hydrometric station and wading cross sections 4 Field Instruments All instruments used for collecting water quantity data are used and maintained according to the manufacturer s spec
214. o a addi e diam gd ite 14 10 References oun eU e DIL Dcus 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP TABLE OF APPENDICES Appendix 1 Minto Environment Hydrology Field Form MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP 1 Purpose The standard operating procedures SOP in this document serve as a guideline for the collection of water quantity flow discharge data from water bodies at Minto Mine Minto specified by Water Use Licence QZ96 006 Water quantity data is critical for a variety of assessment and planning purposes at Minto and is used to interpret water quality data prepare site water balances create operating plans etc The Minto Mine Hydrology SOP follows methods and procedures described in Guidance Document for Flow Measurement of Metal Mining Effluents Environment Canada 2001 and Manual of British Columbia Hydrometric Standards RISC 2009 This document is intended for Minto Mine employees familiar with the location of hydrology stations and the data collection methods outlined in this document Along with on the job training this SOP will to ensure that surface water hydrology data at Minto Mine is collected consistently and the data produced is reliable and representative 2 Responsibilities The quality of flow measurements and water quantity data collected at Minto Mine is dependent on the staff involved and the attention given to field procedur
215. o instrumentation specific to the MCDS is installed None NA Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Structure Description Instrumentation Received the bulk of the overburden released as part of Phase IV and earlier mining of the Main pit Due to the nature of the material placed within the dump small scale sloughs are expected and have been noted Annual visual inspections have not noted large tension cracks that could be indicative of differential settlement The dump is inspected annually and contains no survey hubs or instrumentation The material in the ROD is available for use in reclamation of the mine at closure Reclamation Overburden Dump ROD None Survey hubs Inclinometers Thermistors Piezometers The southwest waste rock dump SWD is currently the main active waste rock dump at Minto Design details on the SWD are contained in the report Waste Rock and Overburden Management Plan for Phase IV mining Southwest Waste Rock Dump SWD The water storage pond and dam are located east of the mine along Minto Creek The dam was constructed in 2006 as a clay core water retention dam for collecting Survey hubs Water Storage Pond Dam WSP precipitation and surface water runoff at the site Maximum depth of water at the face Thermistors of the dam is approximately 15 m Piezometers This dump stores waste released during the mining of the first three stages of the M
216. o the appropriate laboratory with a completed chain of custody COC form An example of a COC form is provided in Appendix 3 This form is used to request sample analysis and track sample custody Filling out a COC should be done with field forms and samples on hand to confirm that all the sample containers for each station are accounted for and labeled correctly All samples must be submitted to the appropriate laboratory for analysis based on the maximum sample hold time Each parameter has a specific hold time that ensures the results generated are accurate However due to the remoteness of Minto Mine the maximum hold times for some samples will not be met For this reason it is essential that samples be shipped to the laboratory as soon as possible It may be necessary to ship samples on the same day as they are collected to preserve the accuracy of the sample analysis It is the responsibility of field staff to ensure the hold times are met where possible All samples must be well sealed and packed with paper bubble wrap etc to prevent spills or breakage Pack each cooler with sufficient ice packs to maintain the samples at 4 Samples collected during the winter will be cooler and will not require the same amount of packaging and ice packs as samples collected in the summer Samples must not be permitted to freeze If samples are being shipped in temperatures significantly below freezing collapsible jugs of warm water may need to be added to t
217. ocused on extent and timing of use as well as quantitative use While the EEM program Government of Canada 2002 requires fisheries monitoring every two to three years the Minto Creek Fisheries Monitoring Program is conducted annually to establish consistent reports on usage and characterization Specific monitoring areas include lower Minto Creek below the canyon Figure 6 1 as it is known that only lower Minto Creek below the canyon is used by fish during the open water season Further a natural barrier to fish passage was confirmed during a 2010 study at approximately 1 2 km up from the Yukon River Past observations have indicated that the area at the confluence of Minto Creek and the Yukon River is not used by spawning salmon or other species The annual fisheries program will however continue to observe for and report on the use of the confluence zone by spawning salmon and other species Sampling methodology is as follows e Sampling is conducted monthly during the open water season from late June early July through November June 2014 36 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine e Known juvenile habitat is targeted such as eddies deep pools and calmer waters with shady areas and or woody debris e Gee type Minnow traps with mesh are placed at monitoring site locations and left to soak for 24 hours e Traps are baited using Yukon River origin Chinook sal
218. of W3 Minto North pit water Upper west arm of McGinty Creek Reference Station West arm of McGinty Creek just upstream of the confluence with the east arm Upper east arm of McGinty Creek downstream of the Minto North deposit East arm of McGinty Creek just upstream of confluence with the west arm Lower mainstream McGinty Creek near confluence with Yukon River Minto South underground mine dewatering Wildfire underground mine dewatering Copper Keel underground mine dewatering Minto East underground mine dewatering June 2014 6 382000 383000 384000 385000 6949000 6948000 6947000 6946000 6945000 6944000 6943000 6942000 382000 383000 385000 National Topographic Data Base NTDB compiled by Natural Resources Canada at scale of 1 50 000 Cadastral data compiled by Natural Resources Canada Reproduced underlicense from Her Majesty the Queen in Right of Canada Department of Natural Resources Canada All rights reserved Datum NAD 83 Map Projection UTM Zone 8N This drawing has been prepared for the use of Access Mining Consultants Ltd s client and may not be used reproduced or relied upon by third parties except as agreed by Access Mining Consultants Ltd and its client as required by law for use of governmental reviewing agencies AccessMining Consultants Ltd accepts no responsibility and denies any liability whatsoever to any party that modifies this d
219. of elevated pipes and culverts and periodically at select stations when appropriate This method involves collecting water in a container of known volume and recording the time it takes to fill in seconds There must be a minimum of three trials to produce an average time Volumetric containers should be calibrated and stopwatches should be water resistant 8 Data Processing Hydrology data is compiled by Minto Mine staff on a monthly and yearly basis including discharge calculations and water level record corrections Processing data into stage discharge curves hydrographs and other discharge records is presently completed or largely supported by a third party Access Consulting Group and is not included in this SOP Discharge Calculations Discharge is defined as the volume of water flowing through a given cross section of a stream over a given period of time Discharge is typically expressed in L s or m3 s For any stream location there is a correlation between water level and discharge called the stage discharge relationship Once this is established discharge can be estimated from recorded water levels and staff gauge readings to create a continuous discharge record To develop this relationship manual discharge measurements are obtained at the hydrometric station over the 11 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP maximum range of stage possible These corresponding points are graphed then a stage discharge cu
220. on Procedures Data collection manuals for all monitoring devices are included in Appendix B 7 3 Documentation After collection data is input into a series of spreadsheets and databases used for storing tracking and plotting instrumentation data Instructions for data input are contained in the instrumentation manuals in Appendix B Data input files are stored in the following location X Mine Technical 03 Monitoring 8 Quality Assurance Quality Control Task observations are routinely performed on monitoring technicians to verify data collection is consistent with the designed procedures These reviews are documented as Job Observations Data collection equipment is returned to the manufacturers as per their recommended calibration schedules typically annually All data is reviewed and summarized by the Geotechnical Engineer monthly as part of the monthly Water Use Licence submission 12 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 9 Reporting Regular processing and review of monitoring data is completed and presented in the following documents as mandated in QZ96 006 Amendment 8 Table 9 Reporting Frequency Submission Pit Wall Inspection Report Minto Mine Water Licence QZ96 006 Monthly Report Clause 11 Minto Mine Water Licence QZ96 006 Quarterly Report Clause 15 Minto Mine Water Licence QZ96 006 Annual Report Clause17 Semi Annual Geotechnical Review Repo
221. on the tagline After taking the discharge measurement record the second staff gauge reading and the time 9 After the measurement download data logger readings record real time data from the Solinst data logger and service the instrument by checking the battery voltage and inspecting all of the cables and connections During every visit to a hydrometric station a complete inspection of the data logger and all related components should be conducted Any sign of malfunction or deterioration of the station components must be recorded and repaired as soon as possible To obtain accurate measurements by wading field staff must pay attention to detail and technique There are many things to consider and numerous opportunities for error The following guidelines will help obtain reliable results Number and Spacing of Verticals All discharge measurements should include 20 verticals with no less than 10 observations of both depth and velocity for most cross sections The distance between verticals must be at least 5 cm when using the Hach FH950 current meter equal to or greater than the width of the current meter The spacing of verticals along the metering section is not usually uniform Where the water is shallow and or slow moving the spacing will be greater than where the water is deep and swift Spacing depends largely on the several factors including overall width of the stream unevenness of the channel bed and variation in velocity across
222. or chemical characterization e Only the top two centimeters of deposited sediment to be collected to form the sample using a stainless steel or Teflon spoon or scoop for the samples collected by petite ponar and a core extruder and core knife for the sample collected by coring e Each sample to be comprised of three grabs particle size or cores chemistry 6 1 2 Benthic Invertebrate Monitoring Program The objective of the Benthic Invertebrate Monitoring Program is to monitor the condition of the benthic invertebrate community of Minto Creek and to provide data to allow interpretation of the potential influence of the Minto Mine on the benthic invertebrate community using temporal comparisons and spatial comparisons control impact design This monitoring is to be conducted in addition to benthic invertebrate community monitoring required every three years as part of Environmental Effects Monitoring EEM under the Metal Mining Effluent Regulation of the federal Fisheries Act Government June 2014 35 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine of Canada 2002 An effects assessment on benthic invertebrates is also required under the MMER EEM program on the same cycle as the EEM monitoring occurs section 6 2 Specific monitoring areas include lower Minto Creek downstream of water quality station W2 and Lower Wolverine Creek reference site Each monitoring area is sampled five t
223. ored and press enter to store the reading audio UN OOO d The data is now stored and the readout box can be turned off by pressing the escape button ESC three times to get back to the main menu and scrolling to Power Off Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Downloading 7 Connect USB cord from computer to the readout box 8 Open the software Multi Readout Host Multi Readout Host 9 Turn on the power on the readout box 10 The software will recognize the readout unit and prompt to download data Choose Yes to download the data from the readout unit Multi Readout Host zs o Would you like to download VW2106 data 11 Once data is downloaded you will have the option to save all data as csv file Choose Yes and the data will be stored in My Documents in a folder named VW2016data Multi Readout Host 2 S Data download complete Would you like to save the data into CSV file Status Reeonnect Monitor Options E B ii V Grid Lines Logging Options i Download Upload Display Add Export Delete Data Readout Options Data sites Records Location CSV Selected Folder ID Location Previous Record Date Time Prev Record Value Units Reading 1 DSP 3A kPa 4 12 A DSP 4A kPa 0 1212 DSP 4B kPa 1 1213 DSP 5A 2 1214 DSP 5B 1 1215 DSP 6A 5 1216 Port status Minto E
224. ored here X Mine Technical 03 MonitoringM Inclinometers Master Database 4 File Import Import RPP file Navigate to the mobile device and select the rpp file for the appropriate monitoring station and date The data will then import and save in the database automatically Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Thermistor Readings Two different types of thermistors are currently installed on site RST and thermistors To read RST thermistors 1 Connect adapter cord to the TH2016B Readout Box 2 Record the resistivity Ohms for each thermistor node on paper or store the data in the readout box with the following steps a Scroll with the Up Down arrows to the Memory screen and press enter arrow key O OOO b Scroll with the Up Down arrows to the Store Data screen and press enter Scroll with the Up Down arrows to the station being monitored and press enter to store the reading d The data is now stored and the readbox can be turned off by pressing the escape button ESC three times to get back to the main menu and scrolling to Power Off Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 To read EBA thermistors 1 Connect the 16 Point Ground Temperature Dial into the thermistor cable 2 Connect the multi meter to the 16 Point Ground Temperature Dial 3 Record on paper the resistance in Ohm s
225. ort Prepared for Minto Explorations Ltd February 2013 383000 384000 385000 386000 387000 6946000 Water Storage Pond 6945000 Dry Stacl Tailings Storage 7 edi Facility f Overburden io EVE EET 6944000 Legend MP Well Functional MP Well Non functional 4 i ter with thermistor Functional Ridg top South Piezometer wi ermistor Functiona Drivepoint Functional CAPSTONE i Notes MINING CORP SiteMap 500 Meters 1 Data presented in NAD 1983 UTM Zone 8N MINTO MINE Showing Well Locations 2 Base airphoto flown August 2012 3 Future pit designs from October 2012 7 MINTO MINE Date March 2013 capstone MINTO MINE Physical Monitoring Plan Prepared by Minto Explorations Ltd Minto Mine May 2014 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Table of Contents 1 e ERE ETT DSL ODDO LLLI 1 2 Str ct res Monitored ii op reato ae 2 3 Design References RUE ERI a PE PEU EREER 4 4 Rolesand tr teet eee 5 5 dnspectlonDsc ie ce roter dera eater te alas eae teen aaa eRe et 6 EM JNSCFUMENT ALON 7 6 1 Location and Installation Information 7 6 1 1 ree 7 6 1 2
226. our depth Digital Inclinor 4 5 26 bk is now in the A direction 20 Go back gently to the bottom of hole and take the second set of readings Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 21 22 23 During the measurement of the second set of readings checksum data will appear in a smaller font below the current readings Checksum should be reasonably small and consistent Ideally it should be somewhere between 0 0035m to 0 0045m If the checksum is large 0 01m and inconsistent check the following Is the probe at the right depth Is the probe in the correct direction Lower the probe to the previous depth and retake the reading again It is possible that checksum is high due to differential pressure in the ground In that case continue measurement and keep monitoring checksum Once readings are completed take out the probe and wipe away the Envirobind gently Put the caps back onto the probe and connector 75 s il Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Input Note Windows Mobile Device Center must be installed on the computer in order to collect the readout unit to the computer s Windows Mobile Connect the USB cable from the readout unit to the computer and turn the power on Open DMM for Windows 3 File Open Project Database The database for all inclinometer data is st
227. own 1994 3 Knotweed family Rumex crispus Curled Dock R 2 48 unknown 1980 3 Knotweed family Rumex longifolius Door yard Dock R 2 48 transportation 1980 3 Knotweed family Rumex pseudonatronatus Field Dock R 2 nr transportation 2004 Yukon Introduced Plants January 2012 Page 2 Species Common Name Abundance Persistence Alaska Rank Date of first collection Yukon Introduced Plants January 2012 3 Goosefoot family Chenopodium album Lamb s Quarter C 1 37 unknown 1883 4 Pink family Cerastium fontanum Common Mouse ear Chickweed U 1 36 unknown 1968 4 Goosefoot family Spinacia oleracea Spinach R 2 agriculture 1980 4 Pink family Cerastium glomeratum Sticky Mouse ear Chickweed R 2 36 horticulture 2004 4 Pink family Cerastium nutans Nodding Chickweed R 2 horticulture 1996 5 Pink family Dianthus plumarius Carnation R 3 horticulture 1994 5 Pink family Gypsophila elegans Showy Baby s breath R 3 nr unknown 1980 3 Pink family Silene noctiflora Night flowering Catchfly R 2 43 revegetation 1996 2 Pink family Silene vulgaris Bladder Campion R 2 42 agriculture horticulture 1984 5 Pink family Spergula arvensis Corn Spurry X 3 32 unknown 1902 4 Pink family Spergularia rubra Red Sandspurry R 2 34 unknown 1977 2 Pink family Stellaria media Common Chickweed 1 42 agriculture horticulture 1943 5 Pink family Vac
228. p to the bead you want to measure This will ensure that the readings remain consistent 18 At each 5m mark check that you are at the right location If you miss or overpass a reading go back to the previous 5m depth For examples if something goes wrong at 41 5m go back to 45m and drop the cable to 45 5m Then gently pull up to 45m and hit Accept again There are arrow keys on the Field PC which allow you to adjust your depth Digital Inclinor 4 5 26 bk is now in the A direction 20 Go back gently to the bottom of hole and take the second set of readings Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 21 22 23 During the measurement of the second set of readings checksum data will appear in a smaller font below the current readings Checksum should be reasonably small and consistent Ideally it should be somewhere between 0 0035m to 0 0045m If the checksum is large 0 01m and inconsistent check the following Is the probe at the right depth Is the probe in the correct direction Lower the probe to the previous depth and retake the reading again It is possible that checksum is high due to differential pressure in the ground In that case continue measurement and keep monitoring checksum Once readings are completed take out the probe and wipe away the Envirobind gently Put the caps back onto the probe and connector 75 s il Minto Explo
229. protocols for other site monitoring activities including meteorology hydrology and hydrogeology with respect to the Minto Mine 9 1 Quality Assurance Quality assurance protocols help ensure that the Minto Monitoring Programs are quantifiable and able to produce quality data Minto Mine is continuously involved in consultation with professionals and technical experts regarding program design standard operating procedures and data review Ongoing staff training and job observations of staff new hires and experienced employees performing monitoring activities ensure that data collection and results are consistent representative and of high quality The steady improvement of quality assurance protocols involves developing more detailed and program specific verification processes and automated checks as well as peer reviews and audits by external professionals on a regular basis Effective quality assurance will identify potential problem areas and necessary corrections to procedures and data management and facilitates evaluation and improvement of the monitoring program Examination and evaluation of field data and data entry is an integral part of quality assurance While it is not possible to check all aspects of input data calculations and interpretations checks can be performed on selected sets of data at appropriate intervals A review of work procedures and data collection methods will identify potential sources of error Reported dat
230. rations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Input Note Windows Mobile Device Center must be installed on the computer in order to collect the readout unit to the computer s Windows Mobile Connect the USB cable from the readout unit to the computer and turn the power on Open DMM for Windows 3 File Open Project Database The database for all inclinometer data is stored here X Mine Technical 03 MonitoringM Inclinometers Master Database 4 File Import Import RPP file Navigate to the mobile device and select the rpp file for the appropriate monitoring station and date The data will then import and save in the database automatically Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Thermistor Readings Two different types of thermistors are currently installed on site RST and thermistors To read RST thermistors 1 Connect adapter cord to the TH2016B Readout Box 2 Record the resistivity Ohms for each thermistor node on paper or store the data in the readout box with the following steps a Scroll with the Up Down arrows to the Memory screen and press enter arrow key O OOO b Scroll with the Up Down arrows to the Store Data screen and press enter Scroll with the Up Down arrows to the station being monitored and press enter to store the reading d The data is now stored and the readbox can be
231. rawing without Access Mining Consultants Ltd s express written consent 386000 387000 388000 389000 386000 387000 388000 389000 A Surface Water Quality Station Current Mine Footprint August 2012 Ld Minto Creek Catchment Contours 100 ft 390000 391000 392000 392000 1 35 000 when printed on 11 x17 inch paper Kilometres 2 CAPSTONE MINING OPERATED BY MINTO EXPLORATIONS LTD ACCESS ee reste 393000 395000 6949000 6946000 6945000 6944000 6943000 6942000 393000 395000 MINTO CREEK WATER QUALITY CHARACTERIZATION FIGURE 2 1 MINTO CREEK MONITORING STATION LOCATIONS JUNE 2013 Minto gis mxd Ph 6 Permitti Last edited by 21 06 2013 10 32 AM 381 000 382 000 6 954 000 6 953 000 6 952 000 6 950 000 E o 6 948 000 6 947 000 6 946 000 6 945 000 381 000 382 000 0 500 1 000 1 500 SSE Meters 1 30 000 When printed on 11 by 17 Inch paper National topographic Data Base NTDB compiled by Natural Resources Canada at a scale of 1 50 000 Reproduced under license from Her Majesty the Queen as represented by the Minister of Natural Resources Canada All rights reserved Datum NAD 83 Projection UTM Zone 8N 383 000 384 000 386 000 387 000 383 000 384 000 Monitoring Station MineFeatureArea Contour 100 ft interval McGinty Creek Catchment Waterbody 385 0
232. rea 118 Pit commenced in January 2014 Survey hubs are monitored along the northeast crest of the pit between Area 118 and Area 2 In pit monitoring currently consists of regular inspections Prisms will be installed along catch benches as mining progresses Survey hubs Prisms Tailings placement was completed in November 2012 subsequently a layer of overburden was placed over the stack as part of progressive reclamation activities The DSTSF began showing deformation in 2009 the movement has been monitored continuously since then via inclinometers which are typically short lived due to the rate of deformation and survey hubs Ground temperature cables and piezometers have also been installed to better understand foundation conditions and to provide data for analytical work The deformation is interpreted as primarily horizontal sliding towards the north northeast on an ice rich layer in the underlying overburden several meters above bedrock Survey hubs Thermistors Inclinometers Piezometers A waste rock buttress to the north of the DSTSF constructed from January 2012 to March 2013 in an attempt to prevent or decrease further movement of the DSTSF Survey hubs Inclinometers Originally constructed as a free standing rockfill structure to contain a volume of ice rich overburden It is now entirely surrounded by the Southwest Dump rockfill which extends a minimum 210m down slope The crest and contents of the IROD are visually insp
233. ream to ensure that contaminants that may be on the sampler do not flow into the container Care must be taken to avoid stirring up any sediment e During sample collection the inner portion of sample bottles and caps must not be touched with anything other than sample water Filter and or add preservatives immediately or as soon as possible after sample collection e Gloves syringes and filters will be kept in clean sealed plastic bags MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP If a particular parameter cannot be completed for the site e g the pH probe is not working a note must be made on the field data form explaining why it could not be taken e As much as possible at a mine site sample containers should be kept in a clean environment Bottles must be capped at all times Vehicle cleanliness is an important factor in minimizing the risk of contamination e All samples should be kept upright and as close as possible to 4 C at all times until they are delivered to the laboratory They must not be allowed to freeze unless freezing is part of the preservation protocol e Ship samples to the external laboratory as soon as reasonably possible Samples should be analyzed within the time limits specified by the analytical laboratory 5 Surface Water Sampling Procedures Preparation Prior to departure for sampling staff will ensure that all field equipment is checked for functionality and cleanline
234. reported in the territory Has not been shown to be problematic may not persist 5 species that likely don t persist 6 false reports 7 native and introduced populations exist General Abundance Persistence C common widespread established 1 widespread F falsely reported 2 local P possible but not yet documented 3 not persistent R rare known from only 1 or two localities 4 falsely reported U unknown X possibly not persistent possibly native Alaska Invasiveness Rank not ranked lt 40 Very Weakly Invasive 40 49 Weakly Invasive 50 59 Modestly Invasive 60 69 Moderately Invasive 70 79 Highly Invasive gt 80 Extremely Invasive Ranking from Matthew L Carlson Irina V Lapina Michael Shephard Jeffery S Conn Roseann Densmore Page Spencer Jeff Heys Julie Riley and Jamie Nielsen 2008 Invasiveness Ranking System for non native plants if Alaska USDA Forest Service Alaska Region R10 TP 143 http www fs fed us r1 0 spf fhp invasive invasiveness 20ranking 20report pdf Introduced Plants of the Yukon Source Cody 1996 cody et al 1998 2000 2001 2002 2003 2004 2005 Bennett B et al 2008 revised by B A Bennett December 2011 this is a tentative list for review purpose only pde Species Abundance Persistence Alaska Rank Source que i collection 1 Grass family Agropyron cristatum Crested Wheat Grass C 1
235. rogram currently in place at Minto to monitor the stability of mining structures including waste rock tailings and water storage facilities The program consists of two main components instrumentation to measure ground conditions and deformation and regular geotechnical inspections The following sections summarize inspection and data collection frequencies instrument installation details and locations and data collection procedures Mining and monitoring activities at Minto are licensed under water use license 0296 006 Mining structures at Minto are shown in Figure 1 1 and described in the following section E Main Waste 4 s Water Storage Pond Reclaim Overburden Dump Water Storage Pond Dam Ice Rich Overburden Underground Operations Dry Warehouse and Maintenance Shop Area 118 Fresh Air Raise 169 118 Portal Southwest Waste Dump Ridgetop z M Deposit PA i Re 4 NB ve X Airstrip Figure 1 1 Minto site plan August 2013 Minto Explorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 2 Structures Monitored Mining structures currently being monitored at Minto include the following shown in Figure 1 1 Table 1 Description of Structures Monitored at Minto Structure Description Instrumentation Area 1 Pit Main Pit Area 2 Pit Area 118 Pit Dry Stack Tailings Storage
236. roject components Groundwater related monitoring at Minto is accomplished through monitoring groundwater wells vibrating wire piezometers and thermistors Monitoring areas include but are not limited to the dry stack tailings storage facility DSTSF mill area Main Pit Area 2 Pit waste rock dumps water storage pond WSP and areas where future mine components are planned An June 2014 12 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine additional objective of this groundwater monitoring plan is to provide for the development of baseline hydrogeological conditions in areas where future mine components are being planned such as Minto North Pit Ridgetop North Pit and Ridgetop South Pit Groundwater monitoring instrumentation locations are shown on Figure 2 3 Groundwater wells are sampled for water quality monitoring as per the procedures summarized in the Standard Guide for Sampling Ground Water Monitoring Wells ASTM 2013 Thermistor strings are used to measure ground temperature profiles in boreholes and in particular permafrost conditions at Minto Thermistor strings consist of multiple temperature sensor nodes distributed along a single multi conductor cable installed within or attached to the outside of grouted PVC pipe EBA and RST thermistor strings have been installed on site Thermistors are read using a basic ohmmeter and RST thermistors are read using the RST TH2016B re
237. ronmental Monitoring Surveillance and Reporting Plan Minto Mine 1 Introduction The Environmental Monitoring Surveillance and Reporting Plan EMSRP is a requirement of Quartz Mining Licence QML 0001 QML which requires plan that describes methods and techniques for collecting monitoring information regarding environmental conditions at the Undertaking as well as quantitative thresholds which trigger the implementation of adaptive management strategies The contents of the EMSRP include requirements under the Type A Water Use Licence QZ96 006 WUL Part G such as the water quality surveillance program the meteorological monitoring program the physical monitoring program the annual biological monitoring plan the acid base accounting test program and the groundwater monitoring program Additionally as a metal mine in the Yukon the Minto Mine is required to comply with the Metal Mine Effluent Regulations MMER Government of Canada 2002 which regulates the monitoring frequency and reporting of effluent discharged from the Minto Mine The Environmental Effects Monitoring EEM program under Section 7 of the MMER outlines requirements for monitoring studies of the potential effects of effluent on the fish population on fish tissue and on the benthic invertebrate community Government of Canada 2002 and details of the EEM program are detailed in Schedule 5 of the MMER These requirements are summarized below as they pertain to t
238. rous opportunities for error The following guidelines will help obtain reliable results Number and Spacing of Verticals All discharge measurements should include 20 verticals with no less than 10 observations of both depth and velocity for most cross sections The distance between verticals must be at least 5 cm when using the Hach FH950 current meter equal to or greater than the width of the current meter The spacing of verticals along the metering section is not usually uniform Where the water is shallow and or slow moving the spacing will be greater than where the water is deep and swift Spacing depends largely on the several factors including overall width of the stream unevenness of the channel bed and variation in velocity across the channel Position of Field Staff Field staff should stand to the side and downstream of the current meter to prevent any interference or effect on velocity readings In very small channels the presence of a person in the water may significantly affect the flow measurement In this case a plank can be placed across the stream for field staff to stand on 10 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Position of the current meter Hold the wading rod in a vertical position and the current meter parallel to the direction of flow while measuring velocity Uneven Channel Bed Measuring depths in a channel bed that is extremely soft or scattered with boulders requires extra att
239. rt Clause 82 Weekly Monthly Quarterly Annually Semi annually after spring melt May June and before freeze up September Submitted internally every Sunday Submitted to Yukon Water Board maximum 30 days following each month Submitted to Yukon Water Board maximum 90 days following each quarter Submitted to Yukon Water Board by March 31 each year Submitted to Yukon Water Board within 45 days of inspections 13 Appendix A Instrumentation Water Storage Pond Dam Detail 22 694598 lt GPS Survey Hub dq Inclinometer Plezometer X Ground Temperature Cable Ccapstone MINTO MINE Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Appendix B Data Collection and Input Manuals Inclinometer Measurements Please refer to RST MEMS Digital Inclinometer System Instruction Manual for complete instruction System Overview Figure 1 System Overview Soft Shell Case Digital Inclinometer Probe w protective end cap Reel Battery Charger 70mm 2 75 OD Cable Grip 85mm 3 34 OD Cable Grip Ultra Rugged Field PC 12V DC car adapter for Reel Battery Charger or Ultra Rugged Field PC Spare Reel Battery Silicone Lubricant for use on connectors 10 USB Cable for Ultra Rugged Field PC AC Adapter 110 240V for Reel Battery Charger AC Adapter 110 240V for Ultra Rugged Field PC Cable Reel with Wireless
240. rvations by Engineer p j observed deficiencies Lack of freeboard to Pond Levels manage large storm events or freshet Water to be pumped to the Area 1 Pit if the Water Storage Pond levels reach the point where freeboard is limited Groundwater Quality trends towards that contained in the MCDS Groundwater Quality Reassess functionality of MCDS in terms of its water retention capabilities June 2014 20 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine TOP OF STRUCTURE ELEV 731 15 m EXISTING GROUND SPILLWAY 730 75 ELEVATION m MAX HEIGHT 24 0 40 amp N SCALE 1 500 MAXIMUM PONDED WATER ELEV 730 75 m SPILLWAY MINTO CREEK DETENTION STRUCTURE WATER COLLECTION SUMP SURGE POND VOLUME 670 m MINTO CREEK DETENTION STRUCTURE PLAN SCALE 1 500 LEGEND GTC 1 INDICATES GROUND TEMPERATURE CABLE Wi 1 INDICATES DRIVE POINT PIEZOMETER Figure 2 5 Minto Creek Detention Structure Plan and Profile TS4 OFFSET 1 FROM SECTION MAX HEIGHT SEE INSET 24m EXISTING GROUND NOTE DEPTH OF TS 1 IS APPROXIMATELY 5 m TO BE DETERMINED FROM FIELD OBSERVATIONS BX SECTION B SCALE 1 200 e v GEOSYNTHETIC LINER 45 NOTE RESIOUUM COMPACTED TO 90 PROCTOR VALUE NOTE RESIDUUM COMPACTED TO 90 PROCTOR VALUE INSET A INSET SCALE 1 50 SCALE 1 50 MINTO CREE
241. rve can be drawn that best represents these points All field data from station visits is entered into the Minto Water Quantity Database and processed into discharge values using a template and standard formulas in Excel Care must be taken to ensure the formulas are not modified during data entry Current Meter Measurements The mid section method allows for mean discharge Q to be calculated by multiplying the mean stream velocity V and the cross sectional area A thus Q VA In this method the stream is divided into a number of panels The flow in each panel is calculated by multiplying the mean velocity measured at each vertical by the corresponding width measured along the surface tape or cord This width should be equal to the sum of half the distance between adjacent verticals The velocity in the two half widths next to the banks can be estimated For a detailed description of the mid section method of computing discharge measurements please refer to the Manual of British Columbia Hydrometric Standards RISC 2009 Table 1 illustrates an example of a completed discharge calculation for a current meter measurement Table 1 Discharge Calculation Site Start Time d Gauge 0 249 Date Observations CB PE Tape Velocity Discharge Distance m Depth m Width m Area m 2 m 3 s 0 46 L 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1 30 140 1 50 1 60 1 70 ss 1 80 1 90 2 00 Total Discharge m9 0032
242. s new areas of disturbance several locations have been identified as appropriate candidates for an expanded monitoring network The location description and expected frequency of monitoring are summarized in the tables within this section It is anticipated that during the water licencing process there may be adjustments to the frequency and locations selected in which case the monitoring outlined in a revised WUL96 006 will supersede the EMSRP Table 2 1 Minto Mine Monitoring Station Descriptions and Coordinates UTM Coordinates Station Description Zone 8 Easting Northing Lower Reach of Minto Creek 392445 6948251 Minto Creek upstream of the Minto Creek Yukon River confluence where the access road crosses Minto Creek Minto Creek at the federal MMER compliance point 387000 6945778 Yukon River upstream of the confluence with Minto Creek 394070 6948203 Yukon River downstream of the confluence with Minto Creek 392583 6949119 Tributary on the south side of Minto Creek approximately 0 8 km downstream of W3 Western collection sump from the DSTSF 385629 6945076 Eastern collection sump from the DSTSF 385716 6945012 Headwaters of Minto Creek south west fork at headwaters 383855 6943364 Main pit and Main Pit Tailings Management Facility 384544 6945137 Tailings thickener overflow 385223 6945089 Upper Minto Creek storm water collection sump downstream of the overburden dump just upstream of Main pit Water Storage Po
243. s water and e Thermistors Pond recirculation of mill process water MWP Detains surface water considered impacted from upstream sub catchment areas and directs it to the Area 1 pit or water treatment plant Extensive instrumentation related to the MVFE is near the MCDS however no instrumentation specific to the MCDS is installed Minto Creek Detention Structure MCDS Received the bulk of the overburden released as part of Phase IV and earlier mining of the Reclamation Main pit Due to the nature of the material placed within the dump small scale sloughs Overburden are expected and have been noted Annual visual inspections have not noted large Dump tension cracks that could be indicative of differential settlement The dump is inspected ROD annually and contains no survey hubs or instrumentation The material in the ROD is available for use in reclamation of the mine at closure Southwest e Survey hubs The southwest waste rock dump SWD is currently the main active waste rock dump at Waste Rock Inclinometers Minto Design details on the SWD are contained in the report Waste Rock and Dump s Thermistors Overburden Management Plan for Phase IV mining SWD Piezometers The water storage pond and dam are located east of the mine along Minto Creek The Water Storage Pond Dam WSP the dam is approximately 15 m Piezometers dam was constructed in 2006 as a clay core water retention dam
244. samples as soon as possible after sample collection and filtering Replace caps immediately and tightly to prevent sample loss Invert bottles to mix preserved samples Place samples in a cooler with sufficient ice packs The following tables list the current requirements for water quality samples sent to Maxxam Analytics and the Minto On Site Laboratory Minto Lab Table 1 Sample Requirements for Samples Analyzed by Maxxam Analytics Analysis Name Analysis Parameters inclusive Bottle Filter Preservative Code plastic Physical Parameters RAW TSS TDS pH EC hardness 1L Not required Not required alkalinity Nutrients Anions RAW SO Cl Fl NO NO3 500 mL Not required Not required Nutrients Anions TP NH3 120 mL Not Required 1 mL Sulphuric Acid H2SO4 Total Metals TM Al As Cd Cr Cu Fe Hg Pb 120 mL Not required 1 mL Nitric Acid Mn Mo Ni Se U Zn Na K Ca HNO3 Mg S Dissolved metals DM Al As Cd Cr Cu Fe Hg Pb 120mL Required 1 mL Nitric Acid Mn Mo Ni Se U Zn Na K Ca 0 45 um filter HNO3 Mg S Dissolved Organic DOC DOC 120 mL Required 1 mL Sulphuric Acid Carbon 0 45 um filter H2SO4 Total Organic TOC TOC 120mL Not required 1 mL Sulphuric Acid 10 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Carbon H2SO4 Cyanide CN CN 120mL Not Required 1 mL Sodium Hydroxide NaOH Radium Ra 226
245. should invasive species be detected the following information should be included in the survey e Location Species Name e Health and size of the plant e Pictures for verification ensure pictures of taken of the plant as well as reference points so the location can be more easily found in the future and e Percent coverage in the area The top 19 most problematic species in the Yukon are summarized in Table 7 1 A full list of invasive species found in the Yukon by taxonomy is provided in Appendix 5 June 2014 41 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Table 7 1 Common and Scientific Names of Common Yukon Invasive Plant Species Latin Name Common Name Latin Name Common tansy Tanacetum vulgare Smooth brome Bromus inermis Creeping thistle Cirsium arvense Spotted knapweed Centaurea stoebe Dalmatian toadflax Linaria dalmatica Scentless chamomile Tripleurospermum perforata Great butter and eggs Linaria vulgaris Foxtail barley Hordeum jubatum Hawkweeds Crepis tectorum Altai wild rye Leymus angustus Leafy spurge Euphorbia esula Crested wheat grass Agropyron cristatum Oxeye daisy Leucanthemum vulgare Quackgrass Elymus repens Perennial sow thistle Sonchus arvensis Reed canary grass Phalaris arundinacea Sweetclover Melilotus alba white Bird vetch Vicia cracca officinale ellow Lucerne Medicago falcata 7 1
246. sis of the production tracking database system 2 25 intervals along each active dump crest the waste rock will be manually sampled 3 For each sample one shovel full of material will be collected and labelled Particles greater than fist size will be manually rejected at the time of sampling 4 The resulting samples will be crushed pulverized and split in Minto s assay lab such that a representative sample is obtained 5 Each sample will be analyzed at site for copper total sulphur S T and total carbon C T content using an Eltra CS 800 induction furnace with infrared detectors 6 S T and C T values are converted into equivalent acid potential AP S T and neutralization potential NP C T values and NP C T AP S T ratios are calculated for each sample 7 Resulting NP C T AP S T ratio values are compared to the segregation criteria and assigned Pass or Fail verification designations The results of both the inventory update and the as built monitoring and verification will be presented in Minto s annual report to the Yukon Water Board Isolated failures will be accepted with no further action two or more adjacent failures occur the crest will be resampled at 5 intervals over each 25 crest section represented by the failed samples Sampling and analysis will follow steps 3 through 6 in the procedure described above The average copper grade and NP C T and AP S T for the suspect zone will
247. sition the current meter sensor correctly adjust the sliding rod to line up the scale on the rod to the value of the observed depth Detailed instructions on how to adjust the rod are provided by the manufacturer 6 Where water depth in the vertical is 21 0 m the velocity is measured at both 0 2 and 0 8 depth from the water surface and the mean velocity is calculated To set the current meter on 0 2 depth position double MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP the value of the observed depth and adjust the sliding rod to line up the scale to read this value For 0 8 depth position the scale to read half of the observed depth Note The 0 2 0 8 method is not entirely satisfactory if the channel bed is very rough irregular or covered with aquatic growth These conditions will often produce erratic results for the observation at the 0 8 depth In some situations more reliable results will be obtained by computing the average velocity on the basis of the 0 2 and 0 8 depths and averaging the computed value with the velocity from the 0 6 depth This is known as the three point method 7 Allow sufficient time for the current meter to adjust to water conditions Observe velocities for a minimum of forty seconds The adjustment time will be a relatively short at high velocities and significantly longer at low velocities 8 Continue the measurements across the stream until you reach the opposite bank and record the distance
248. spread of invasive plant propagules This will be monitored as part of the walk around inspection done prior to site access 7 1 1 2 Plant Selection Ensure plants for reclamation are not included in the list of Yukon invasive species Ensure any straw used for erosion control or other projects around site is certified to be weed free or at a minimum is locally sourced Use locally gathered seed whenever possible Establish woody species early in reclamation This will give woody species time to establish and grow above the height where they will be affected invasive plants grasses and non woody plants Ensure seedlings brought to site were grown in sterile potting mixes ex potting soil and perlite and not from regional sources 7 1 1 3 Erosion Control Exposed soil will be managed in such a manner as to discourage the production of fugitive dust and colonization by invasive plant species e g covers dust suppressants temporary or permanent planting June 2014 40 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine Reduce the amount of seed that sown on site If seed is necessary it will be limited to weed free certified seed mix Reduce the amount of areas that require fast growing grasses for erosion control by planning lower angle slopes Plant local colonizing species on exposed slopes 7 1 1 4 Soil Salvage Properly segregated topsoil and woody overburde
249. ss and that sample bottles are clean and unopened All equipment calibration standards preservatives sampling gear and sample bottles will be organized and stored in a clean environment and transported in clean dry containers Field instruments should be tested to ensure batteries are charged and all parts are accounted for Sample bottles preservatives syringes filters and coolers are currently supplied by Maxxam Analytics Current contact information and shipping label for Maxxam Analytics is provided in Appendix 1 Preparation for water quality sampling must also include provision for quality control samples The number of quality control samples taken must correspond to a minimum of 1096 of the total number of samples taken for all sampling events The following is a list of equipment and sampling supplies regularly used to complete surface water quality monitoring e Sample bottles and labels e Field notebook and or field forms e Water quality meter e Nitrile gloves e Syringes and filters e Sample preservatives e Cooler and sufficient ice packs e Deionized water MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Cooler labels and laboratory Chain Of Custody e Chisel axe and or ice auger when sampling under ice e Spare parts and batteries General field gear typically includes e PPE e Radio e Rubber boots or waders e Camera e Pencils pens permanent marker e Sample site map G
250. t has a red measure mark with label every 5m Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 11 Lower the probe gently to ensure the bottom of the hole is encountered Slightly passed the designated depth Double check your correct depth by pulling out reel to the next 5m mark and counting back each 0 5 for each increment 12 Place the cable grip on top of the casing and hang the cable by the aluminum crimps 3 vk SETA Ce OS lt E i Teo 13 Connect the Field PC to the reel Use the pen attached to the field PC and press Connections 1 9 ense Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 14 Once connected hit Readings 15 At each depth allow the A and B readings as well as the noise level become stabilized before you accept the readings Ideally noise level should be at or below 30 pV Digital Inclinor Eh GP 2 5 26 16 Wear gloves as the Envirobind inside the inclinometer casing can be sticky and irritable Pull up gently to the next marker and let the aluminum crimp to sit on the metal grip Wait for the readings and noise level to stabilize and then hit Accept lt d a E v s 4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 17 If you accidentally pull the probe too far more than an inch lower the probe back down to the previous bead then pull u
251. t in a mature tree Discharge Measurement using a Current Meter Minto uses the mid section method for measuring flows using a current meter This is a standard discharge measurement technique where the depth and velocity are measured at a number of verticals along a cross section Velocity measurements at a percentage of the stream depth are assumed to represent the average velocity through the vertical water column Accurate current metering is critical to the accuracy of the discharge measurement Preparation Upon arrival at the site field staff will conduct an overall station inspection Observing and documenting the overall channel conditions will help identify conditions that may affect the measurement and the stage discharge relationship Assessing channel conditions is also important in deciding whether or not it is safe to complete the measurement This includes the presence of aquatic plants and floating debris any obstructions in the stream and signs of channel bank erosion and deposition in vicinity of the station Field staff are responsible for selecting the best cross section to carry out discharge measurements during each station visit The location of the cross section often varies with changes in water levels or channel conditions MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP The best sections for low medium and high flow measurements should be established and used as much as possible Make a prelimin
252. t of time Always record stage to three decimal places and document the exact time the reading was taken Depending on the orientation of the staff gauge high flow conditions may sometimes result in water stacking up on the gauge Readings should be taken at the downstream side of the gauge where the water is calmer It is also possible to have no surface flow when the station is visited These conditions are very important to developing accurate discharge records Zero flow conditions must be thoroughly documented and photographed It is also possible to read a water level on a staff gauge when there is no visible flow This must also be thoroughly documented if encountered MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Surveying and Tracking Staff Gauge Drift Due to ice movement and natural freeze thaw cycles staff gauges are subject to move or drift over time If a staff gauge moves the reference elevation to which all other measurements and records at that site are compared to changes Always document conditions that may suggest the staff gauge moved in any direction Photos and any estimates of amount and direction of drift are very useful when correcting data records and planning repairs Annual surveying of staff gauge elevation typically in the spring tracks changes in staff gauge location and allows for correction of water level records if needed Detailed procedures for level surveys are not provided in this SOP how
253. taff upon return from the field 7 Water Quantity Data Collection Methods An explanation of the water quantity data collection methods carried out at Minto Mine and detailed procedures for each method are described in this section Staff Gauges Staff gauges are used to record the stage water level of a water body All discharge measurements and continuous water level readings are referenced to the staff gauge therefore it is extremely important to read the staff gauge carefully and correctly each visit Taking a photograph of the water level on the staff gauge is a useful reference in the field for ensuring accurate readings Staff gauge readings should be taken before and after flow measurements as water levels can change in a small amount of time Always record stage to three decimal places and document the exact time the reading was taken Depending on the orientation of the staff gauge high flow conditions may sometimes result in water stacking up on the gauge Readings should be taken at the downstream side of the gauge where the water is calmer It is also possible to have no surface flow when the station is visited These conditions are very important to developing accurate discharge records Zero flow conditions must be thoroughly documented and photographed It is also possible to read a water level on a staff gauge when there is no visible flow This must also be thoroughly documented if encountered MINTO EXPLORATIONS LTD MINTO
254. tative of the meteorological condition that occur at Minto Mine 9 3 3 Hydrogeology Monitoring Program QA QC QA QC for groundwater well monitoring includes field duplicate samples that are collected at a frequency of one field duplicate sample per ten groundwater monitoring samples 10 One field blank sample is collected during each Spring Fall groundwater monitoring event Field blank samples are collected from deionized water supplied by the analytical laboratory using the methods as similar as possible employed to collect groundwater monitoring samples including field filtration and preservation of the dissolved metals field blank 9 4 External Laboratory QA QC Every sample report received from an external lab is accompanied by a Quality Assurance Report which includes a calculated percent recovery for all applicable parameters as well as QC limits The QC tests include matrix spike within 80 12096 recovery spiked blank 80 12096 recovery method blank value and Relative Percent Difference for duplicates less than 2096 Each report also details any deviations from procedure including exceeding standard holding time A QC batch number is assigned to each sample for traceability Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 9 5 On site Laboratory QA QC In the on site laboratory metals are analyzed using an atomic absorption spectrometer specifically a Varian 240 G is use
255. te May June of each year Engineer rock and overburden dumps all water diversion and conveyance structures and the dry stack tailings storage facility 1 Monitoring locations and frequency dictated by Water Use Licence QZ96 006 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine 8 Progressive Reclamation Effectiveness Monitoring Program The Progressive Reclamation Effectiveness Monitoring Program is a requirement of the EMSRP Plan and is required to monitor the effectiveness of progressive reclamation and post closure reclamation at the Minto Mine Additionally WUL QZ96 006 requires a Reclamation Research Plan and progressive reclamation activities that are detailed in the Minto Mine Reclamation and Closure Plan RCP The Progressive Reclamation Effectiveness Monitoring Program is used to support the progressive reclamation activities that occur during mine operation and post closure monitoring is described in the RCP The objective of the Progressive Reclamation Effectiveness Monitoring Program is to identify and evaluate reclamation and remediation technologies that are considered both promising and feasible for incorporation into the evolving mine DRP Reclamation research at the Minto Mine has focused primarily on key closure methods proposed for the site including soil covers vegetation and semi passive treatment 2013 monitoring areas included the Main Waste Dump MWD
256. ted in a consistent manner with the appropriate equipment to generate the most accurate field measurements and analytical results Erroneous results which do not represent the water body being sampled can lead to inaccurate conclusions about water quality and have the potential to influence management actions The following is a typical allocation of responsibilities associated with the Water Quality Monitoring Program at Minto Field Staff Field staff must have the appropriate knowledge to collect representative samples and protect samples from contamination and deterioration sampler is responsible for minimizing field error and collecting the best sample possible This includes consistency in sampling procedure correct use of sampling equipment accurate labelling and completion of detailed field notes Field staff are responsible for coordinating all sampling events in accordance with the requirements of the current WUL including sampling locations sampling frequency and parameter requirements Staff performing sampling and monitoring duties shall ensure that all site and sample specific details are clearly documented and that all quality assurance and quality control QA QC protocols are being followed Field staff must be experienced in the operation and safety requirements for all field instruments sampling gear equipment and reagents used for sampling They are responsible for maintaining equipment and maintaining stock and inven
257. tember 2013 SRK September 30 2013 Prefeasibility Geotechnical Evaluation Phase IV Minto Mine SRK December 2009 Geotechnical Design Report Dry Stack Tailings Storage Facility Minto Mine Yukon EBA File 1200173 January 2007 Waste Rock and Overburden Management Plan Phase IV Development Minto Mine YT EBA File W14101068 015 September 9 2011 Upstream Water Management for the Mill Valley Fill Expansion and Dry Stack Tailings Storage Facility EBA File W14101168 013 September 14 2011 Geotechnical Design Ice Rich Overburden Dump Minto Mine Minto YT EBA file 1200173 January 2006 Ice Rich Overburden Dump Containment Berm Inspection Report Minto Mine Site Minto Yukon EBA File 1200173 001 June 19 2007 Minto Project Minto Creek Detention Structure Seepage Monitoring Program EBA File W14101068 001 October 25 2011 Geotechnical Design Proposed Reclamation Overburden Dump Minto Mine Yukon EBA File W14101068 004 February 2008 Reclamation Overburden Dump Expansion Geotechnical Design Report EBA File W14101068 0040 June 29 2010 Monitoring Inspection Guidance Reports SWP Area 2 Pit Wall and Crown Pillar Monitoring Minto January 30 2014 Operation Maintenance and Surveillance Manual Dry Stack Tailings Storage Facility Minto Mine YT Revision 2011 1 EBA File W14101068 001 January 2011 Geotechnical Design Ice Rich Overburden Dump Minto Mine Minto YT EBA file 1200173
258. the channel Position of Field Staff Field staff should stand to the side and downstream of the current meter to prevent any interference or effect on velocity readings In very small channels the presence of a person in the water may significantly affect the flow measurement In this case a plank can be placed across the stream for field staff to stand on 10 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Position of the current meter Hold the wading rod in a vertical position and the current meter parallel to the direction of flow while measuring velocity Uneven Channel Bed Measuring depths in a channel bed that is extremely soft or scattered with boulders requires extra attention Be careful not to allow the bottom of the wading rod to sink into soft channel bed material If the channel bed is very rough take time to adjust the width of verticals so the observed depths so reflect the tops of the boulders and the depths between them Rated Structure Minto currently has a prefabricated flume combined with a pressure sensor constructed in a four season shelter at W3 Water levels are read off an embedded staff gauge on the flume during each visit For optimal performance the flume floor and walls should be kept clean and free of sediment and algae growth and upstream of the structure should be kept free of sediment accumulation and debris Volumetric Measurements Volumetric measurements are taken at the outlets
259. tions Ltd Physical Stability Monitoring Plan Minto Mine May 2014 3 Inanew column enter the date and copy the resistivity data Ohms from the paper records or from the csv file saved in either TH2016data or VW2016data saved in My Documents Dac Miser 5 Oct 11 24 Nov 11 28 Feb 12 27 Mar 12 11 Apr 12 18 Apr 12 14 May 12 aud 1 2 3 4 5 6 Li 8 9 Piezo Graphs GIC Readings 3191297 GTC Graphs GTC Graph 4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Vibrating Wire Piezometer Readings Connect adapter cord to the VW2106 Readout Box Connect the coloured wires to the correct wire clips on the extension cable Make sure the wires do not touch each other 3 Record the DATE and TIME as barometric pressure will be needed to calibrate the water level Record the measurement between 7000B to 9000B and the temperature C for each piezometer The piezometer ID should be labeled on the wire eg 5 and P5b 5 Alternatively the data can be stored in the readout box a Scroll with the Up Down arrows to the Memory screen and press enter arrow key audio 0060080 b Scroll with the Up Down arrows to the Store Data screen and press enter Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 C Scroll with the Up Down arrows to the station being monit
260. tles with station name date time 24 hour clock and analysis code provided in Table 1 Put on clean nitrile gloves prior to collecting the sample Handle sample bottles and caps appropriately to avoid contact with internal surfaces Plunge the bottle under the water with the mouth facing upstream away from the sampler s hand MINTO EXPLORATIONS LTD All bottles will be triple rinsed MINTO MINE SURFACE WATER QUALITY MONITORING SOP e Ensure that samples requiring filtering are rinsed with filtered water only e Collect the water sample until the bottle is full and remove it from the water Pour some water out to make room for preservatives if needed Use new syringes and filters for every station Filter at the sampling location whenever possible and otherwise from a sub sample taken in a separate container in a clean environment as soon as possible after sample collection e Add preservatives to the required samples as soon as possible after sample collection and filtering Replace caps immediately and tightly to prevent sample loss Invert bottles to mix preserved samples Place samples in a cooler with sufficient ice packs The following tables list the current requirements for water quality samples sent to Maxxam Analytics and the Minto On Site Laboratory Minto Lab Table 1 Sample Requirements for Samples Analyzed by Maxxam Analytics Analysis Name Analysis Parameters i
261. to Monitoring Pit Wall Monitoring Logs WSP W12 W13 Water Elevations J 04 Long Term Planning 0 05 Mine Planning n 06 UG Mine Planning Jo 07 Drill amp Blast 08 Project Management J 09 Administration amp Safety J 11 How Tos Ji 13 Photos J 14 Geotechnical m 2 Openthe tab GTC Readings ATI IN me c a 1 3 4 270 5 5 a Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 3 Inanew column enter the date and copy the resistivity data Ohms from the paper records or from the csv file saved in either TH2016data or VW2016data saved in My Documents Dac Miser 5 Oct 11 24 Nov 11 28 Feb 12 27 Mar 12 11 Apr 12 18 Apr 12 14 May 12 aud 1 2 3 4 5 6 Li 8 9 Piezo Graphs GIC Readings 3191297 GTC Graphs GTC Graph 4 Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Vibrating Wire Piezometer Readings Connect adapter cord to the VW2106 Readout Box Connect the coloured wires to the correct wire clips on the extension cable Make sure the wires do not touch each other 3 Record the DATE and TIME as barometric pressure will be needed to calibrate the water level Record the measurement between 7000B to 9000B and the temperature C for each piezometer The piezometer ID should be labeled on th
262. to compare water quantity data collected throughout the year and review trends outliers etc This is often completed with input from external professionals Supervisors must also periodically review data collection procedures including the content of this SOP to ensure the best methods are being used and that adequate QA QC is being incorporated into the program 3 Hydrometric Station Installation There are many factors to consider when selecting and installing a hydrometric station in an open channel Hydrometric stations at Minto typically consist of a pressure sensor and data logger installed in a perforated PVC tube This instrumentation is accompanied by a staff gauge All components are attached to a wooden frame and anchored to shore Minto currently consults with external professionals regarding the establishment of new stations however the following guidelines will be considered by trained Minto staff when selecting and installing hydrometric stations e Site can be accessed safely by field staff through the full range of stage e Siteislocated where the stream cross section is stable typically in a pool or run avoiding turbulent riffle or cascade sections e The staff gauge and pressure sensor are able to record accurate water levels through the full range of stage and discharge can be accurately measured at all stages using acceptable flow measurement methods e Allstation components are structurally sound and will not move in
263. toring Site 1 5 rains 18 Figure 2 5 Minto Creek Detention Structure Plan and Profile esses 21 Figure 2 6 MCDS Inspection Form raria rariss riis saisi rina inn 22 Figure 3 1 Open Pit Drill Hole ABA Sampling Flow nennen ennemis 25 Figure 3 2 Underground Waste Rock ABA Sampling Flow Chart essen 26 Figure 4 1 Sample Snow Survey Field 30 Figure 6 1 Biological Monitoring Program Sample 34 Figure 7 1 Wildlife Monitoring Log 44 Figure 7 2 Nuisance or Potentially Dangerous Animal Observation 45 List of Appendices Appendix 1 Appendix 2 Appendix 3 Appendix 4 Appendix 5 Minto Mine Surface Water Quality Monitoring Standard Operating Minto Mine Surface Water Hydrology Monitoring Standard Operating Minto Mine Groundwater Monitoring Plan Physical Monitoring Plan Yukon Invasive Plants by Taxonomy June 2014 Minto Explorations Ltd Environmental Monitoring Surveillance and Reporting Plan Minto Mine List of Acronyms
264. tory of sampling supplies MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP Field staff are also responsible for submitting all samples to the appropriate laboratory for analysis in a timely manner and performing data entry related to the Water Quality Monitoring Program Supervisors Supervisors are responsible for ensuring field staff understand the requirements of the WUL and that all WUL requirements and internal QA QC protocols are being met and documented Supervisors are responsible for ensuring sample and data collection and management procedures are being carried out consistently and identifying variance from standard procedures This includes ensuring digital copies of all field data and laboratory results are saved with the correct file names to the appropriate location on the server The first step in ensuring proper sampling techniques is to provide staff with training for the sampling conditions they encounter Supervisors are responsible for providing appropriate levels of training to all field staff and ensuring that all samplers are proficient to carry out their responsibilities or are adequately supervised It is the responsibility of supervisors to compare water quality data to the applicable standards and to previously collected data to review trends outliers etc Supervisors must also periodically review sampling procedures and the content of this SOP to ensure the best methods are being used and that
265. ttles for the entire duration of the sampling event Trip blanks indicate contamination within the bottle or from volatile compounds Field Blank A sample of deionized water that is prepared in the field using the same procedures for collecting FB the field sample Preservative is added after the sample is collected Field blanks measure contamination from bottles collection methods the sampling environment and preservatives Duplicate Duplicate samples are independent samples collected from the same place and time to determine DUP the precision of environment and laboratory heterogeneity Duplicate samples measure the reproducibility of the sampling and analysis Field Split Aliquots taken from the same sample container and assumed to be identical Split samples can be FS sent to separate laboratories for analysis and the results can be used to determine inter lab variability Care must be taken to ensure that the samples are split homogeneously Quality Assurance Quality assurance protocols help ensure that the Minto Water Quality Monitoring Program is quantifiable and able to produce quality data Minto Mine is continuously involved in consultation with professionals and technical experts regarding program design standard operating procedures and data review Ongoing staff training and inspections of staff especially new hires performing monitoring activities ensure data collection and results are consistent represe
266. turned off by pressing the escape button ESC three times to get back to the main menu and scrolling to Power Off Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 To read EBA thermistors 1 Connect the 16 Point Ground Temperature Dial into the thermistor cable 2 Connect the multi meter to the 16 Point Ground Temperature Dial 3 Record on paper the resistance in Ohm s for each point Minto Explorations Ltd Physical Stability Monitoring Plan Minto Mine May 2014 Data Downloading E 5 Connect USB cord from computer to the readout box Open the software Multi Readout Host Ll Multi Readout Host Turn on the power on the readout box The software will recognize the readout unit and prompt to download data Choose Yes to download the data from the readout unit Multi Readout Host 3 e Would you like to download TH2016 data Once data is downloaded you will have the option to save all data as csv file Choose Yes and the data will be stored in My Documents in a folder named TH2016data Multi Readout Host 83 Data download complete WEB Would you like to save the data into CSV file Multi Readout Host Config file TH Download Upload Display Add Export Delete Data Data sites Records Location CSV Selected Folder Instrument oe Location Sensor Thermistor Type Reading
267. ure 1902 2 Pea family Trifolium hybridum Alsike Clover 1 57 agriculture revegetation 1902 2 Pea family Trifolium pratense Red Clover 1 53 agriculture revegetation 1902 2 Pea family Trifolium repens White Clover C 1 59 agriculture revegetation 1916 7 Pea family Vicia americana American Vetch R 1 unknown 3 Pea family Vicia angustifolia Garden Vetch R 2 unknown 1992 1 Pea family Vicia cracca Tufted Vetch C 2 73 nd 1943 5 Pea family Vicia villosa Wolly Vetch X 3 53 unknown 1916 3 Maple family Acer negundo Manitoba or Ash leaf Maple R 2 nr horticulture 1998 1 Euphorbia family Euphorbia esula Leafy Spurge R 2 84 argiculture 1992 4 Violet family Viola tricolor Johnny jump up C 1 34 horticulture 1995 4 Oleaster family Hippophae rhamnoides Sea Buckthorn R 2 horticulture 2007 3 Carrot family Heracleum sibiricum Siberian Cow parsnip R 2 unknown 1991 5 Carrot family Pastinaca sativa Wild parsnip R 3 nr agriculture 1949 3 Mallow family Malva neglecta Common Mallow R 2 nr agriculture 2008 5 Jacob s ladder family Gilia capitata Blue headed Gily Flower X 3 unknown 1902 3 Forget me not family Amsinckia menziesii Menzies Fiddleneck R 2 nr unknown 1943 5 Forget me not family procumbens German Mad wort X 3 nr horticulture 1949 7 Forget me not family Hackelia deflexa Nodding Stickseed X 3 unknown 3 Forget me not family Lappula squarrosa European Stickseed U 2 44 unknown 1973 5 Forget me not family Myosotis scorpioides
268. used Where the location of the downgradient toe of the monitoring location changes over time the route surveyed will change such that for any given monitoring event monitoring will be carried out along the downgradient toe June 2014 17 6946000 6945000 6944000 6943000 383000 384000 385000 386000 ORE STOCKPILE AREAS OVERBURDEN DUMPS WASTE ROCK DUMPS DRY STACK TAILING STORAGE FACILITY MILL AREA MILL VALLEY FILL DAM SEEPAGE 6946000 6945000 6944000 6943000 MINTO MINE capstone MINTO MINE SEEPAGE MONITORING PROGRAM JANUARY 2014 MONITORING STATIONS Seepage Point WUL Seepage Water Quality Station SURVEY TRACKS Summer Seep Monitoring Survey Fall Seep Monitoring Survey 1 13 000 when printed on 11 x 17 inch paper 100 200 300 400 500 Meters Aerial imagery obtained from Challenger Geomatics Imagery acquired August 11 2013 Datum NAD 83 Projection UTM Zone 8N This drawing has been prepared for the use of Access Mining Consultants Ltd s client and may not be used reproduced or relied upon by third parties except as agreed by Access Mining Consultants Ltd and its client as required by law or for use of governmental reviewing agencies Access Mining Consultants Ltd accepts no responsibility and denies any liability whatsoever to any party that modifies this drawing without Access Mining Consultants Ltd s express written consent
269. ut data calculations and interpretations checks can be performed on selected sets of data at appropriate intervals A review of work procedures and data collection methods will identify potential sources of error All water quantity data including field notes photographs and datalogger download files are carefully handled organized and stored to ensure the information can be located for future use Corrections or adjustments to abnormal or inaccurate data logger records rely on the availability of complete documentation 10 References Guidance Document for Flow Measurement of Metal Mining Effluents Environment Canada 2001 Manual of British Columbia Hydrometric Standards Resources Information Standards Committee RISC 2009 Standard Operating Protocol Surface Water Hydrology Data Collection and Management Access Consulting Group 2010 14 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER HYDROLOGY SOP Appendix 1 Minto Environment Mine Hydrology Field Form 15 MINTO EXPLORATIONS LTD Site MINTO MINE SURFACE WATER HYDROLOGY SOP Minto Hydrology Field Form Initials Start Time Start Staff Gauge End Time Datalogger download Y End Staff Gauge Photos Taken Y N Notes precipitation changes to site conditions datalogger info etc Left amp right banks chosen looking downstream Left Bank Measurement Left Bank Depth Right Bank Measurement Right Bank Depth Section Tap
270. veillance and Reporting Plan Minto Mine 7 Terrestrial Environment Monitoring Program The Terrestrial Environment Monitoring Program is designed to monitor terrestrial features of the Minto Mine and surrounding environment The objective of the program is to monitor invasive plant species wildlife and erosion and sedimentation occurring in and around the mine site These programs are detailed in sections 7 1 through 7 3 7 1 Invasive Plant Species Monitoring Program Invasive species largely refer to non native foreign or exotic species although a few native species if introduced into new and suitable environments can become problematic e g Foxtail barley It is important to note that the term invasive species includes plant animal fungus and bacterium The main pathways by which invasive species may be introduced to the Minto Mine site include distribution through reclamation efforts and introduction though vehicle traffic to the mine site 7 1 1 Invasive Plants Mitigation 7 1 1 1 Site access The following mitigation measures will be implemented in order to reduce the possibility of propagules spreading across site by means of vehicles and equipment Wherever possible vehicle use including ATVs will be restricted to roads and existing pathways so as to limit additional disturbance to ecosystems and plants Wherever possible vehicles entering site will be clean e g no large obvious clods of mud so as to limit the
271. vities The DSTSF began showing deformation in 2009 the movement has been monitored continuously since then via inclinometers which are typically short lived due to the rate of deformation and survey hubs Ground temperature cables and piezometers have also been installed to better understand foundation conditions and to provide data for analytical work The deformation is interpreted as primarily horizontal sliding towards the north northeast on an ice rich layer in the underlying overburden several meters above bedrock Survey hubs Thermistors Inclinometers Piezometers A waste rock buttress to the north of the DSTSF constructed from January 2012 to March 2013 in an attempt to prevent or decrease further movement of the DSTSF Survey hubs Inclinometers Originally constructed as a free standing rockfill structure to contain a volume of ice rich overburden It is now entirely surrounded by the Southwest Dump rockfill which extends a minimum 210m down slope The crest and contents of the IROD are visually inspected once per year No instrumentation is installed in the IROD None The mill water pond is a small water storage pond used for excess process water and e Thermistors recirculation of mill process water Detains surface water considered impacted from upstream sub catchment areas and directs it to the Area 1 pit or water treatment plant Extensive instrumentation related to the MVFE is near the MCDS however n
272. well Camp area Operational 08SWC270 Southwest Waste Dump area Destroyed 08 271 Southwest Waste Dump area Destroyed 08SWC272 Southwest Waste Dumparea Destroyed Buried by waste rock 08 273 Southwest Waste Dump area Destroyed 08SWC274 Southwest Waste Dump area Destroyed O08SWC275 Southwest Waste Dump area Destroyed O08SWC277 Southwest Waste Dump area Destroyed 08SWC278 Southwest Waste Dump area Destroyed 08SWC280 Southwest Waste Dumparea Destroyed Buried by waste rock Table2 Summary of Existing Vibrating Wire Piezometers Minto Mine Vibrating Wire Piezometer Name Location Status DSP 1 DSTSF area Operational DSP 2 DSTSF area Operational DSP 3 DSTSF area Operational DSP 4 DSTSF area Operational SDP 1 Southwest Dump area Destroyed SDP 2 Southwest Dump area Operational SDP 3 Southwest Dump area Operational SDP 4 Southwest Dump area Operational Note installations at the Main Water Dam are excluded from this table 2 1 3 Ground Temperature Monitoring Several thermistors ground temperature cables have been installed during geotechnical investigations at Minto Mine These instruments provide measurements of temperature at various depths below ground at each location but do not provide any piezometric data Table 3 provides summary information about the existing thermistor cables Table3 Summary of Existing Ground Temperature Cables Minto Mine
273. xplorations Ltd Minto Mine Physical Stability Monitoring Plan May 2014 Data Input Spreadsheets for piezometer data input and tracking are stored here X Mine Technical 03 Monitorin Piezo and GTC 4 Open the spreadsheet for the area monitored GO JE Computer gt data min fs 01 06 gt Mine Technical gt 03 Monitoring gt PiezoandGTC gt Organize v Burn New folder 02 Reporting 03 Monitoring a Data Input Information Hubs and Prisms Unclinometers a Instrumentation Maps Ji Piezo and GTC instrumentation Monitoring Archive a GroundProbe Radar a Misc Pit Photo Monitoring Pit Wall Monitoring Logs WSP W12 W13 Water Elevations J 04 Long Term Planning 0 05 Mine Planning n 06 UG Mine Planning Jo 07 Drill amp Blast 7 08 Project Management 09 Administration amp Safety J 11 How Tos J 13 Photos J 14 Geotechnical m Name Data downloads Ground Temp and Piezo 2013 info Ji Ground Temp Cables 2008 J eld meat BI GTC Piezometer Instrumentation Area 2 Pit 3 GTC Piezometer Instrumentation DSTSF E Minto Master MWP Instrumentation Spreadsheet E Minto Master WSPD Instrumentation Spreadsheet E Minto Pit Geotech Monitoring 2009 5 Open the tab Piezo Readings n 15 16 i 18 120 Yai 122 123 124 125 125 127 128 123 130 11 132 13
274. y and accredited external labs Two external CALA certified laboratories were used Maxxam Analytics and ALS Environmental It is to be noted there is as expected variation in the results due to method and instrumentation differences The detection limits reported by the external labs using Inductively Coupled Plasma Mass Spectroscopy ICP MS can be as much as an order of magnitude lower than an Atomic Absorption Spectroscopy Graphite Furnace AAS GF Table 9 2 demonstrates the ability of Minto Mine Laboratory to reasonably correlate with an external accredited lab Maxxam Analytics for metal analysis with the exception of cadmium It is important to note that the poor correlation with cadmium is due to the difference in instrumentation AAS GF and ICP MS Unfortunately this correlation cannot be resolved to a greater degree as the majority of the variance comes from the superior capability of an ICP MS to discern trace amounts of cadmium Table 9 2 Coefficient of Correlation between Minto Mine On site Laboratory and Maxxam for Total Metals Metal Coefficient of Correlation Cu Dissolved 0 8 Cu Total 0 9 Al Dissolved 0 8 Al Total 0 6 Cd Dissolved 0 04 Cd total 0 2 Se dissolved 0 9 Se total 0 9 Nutrient and TSS coefficients of correlation between on site and external laboratories are provided in Table 9 3 Nitrate and TSS correlations are reasonable indicating that the labs resolve these in a similar fashion
275. y if the channel bed is very rough irregular or covered with aquatic growth These conditions will often produce erratic results for the observation at the 0 8 depth In some situations more reliable results will be obtained by computing the average velocity on the basis of the 0 2 and 0 8 depths and averaging the computed value with the velocity from the 0 6 depth This is known as the three point method 7 Allow sufficient time for the current meter to adjust to water conditions Observe velocities for a minimum of forty seconds The adjustment time will be a relatively short at high velocities and significantly longer at low velocities 8 Continue the measurements across the stream until you reach the opposite bank and record the distance on the tagline After taking the discharge measurement record the second staff gauge reading and the time 9 After the measurement download data logger readings record real time data from the Solinst data logger and service the instrument by checking the battery voltage and inspecting all of the cables and connections During every visit to a hydrometric station a complete inspection of the data logger and all related components should be conducted Any sign of malfunction or deterioration of the station components must be recorded and repaired as soon as possible To obtain accurate measurements by wading field staff must pay attention to detail and technique There are many things to consider and nume
276. y sampling event to document current conditions at each station At a minimum photos must be taken to show changes in physical conditions at the sampling location Photos from one sampling event will typically include one upstream and one downstream facing shot Aerial photos should also be taken when the opportunity is available Photographs are an important tool to assist with data interpretation Photos are stored in digital format and must be accurately labeled by field staff upon return from the field Sample Custody and Shipment Water quality samples are handled at all times to prevent damage and potential sample loss thereby reducing the risk of contamination Samples are transported around the mine site in sealed coolers with sufficient ice packs until they are placed in a sample fridge or delivered to the Minto Lab Samples are stored upright in clean 12 MINTO EXPLORATIONS LTD MINTO MINE SURFACE WATER QUALITY MONITORING SOP refrigerators equipped with thermometers Samples are maintained as close to 4 as possible from the time of collection until they are delivered to a laboratory After surface water quality samples have been transported back to the office field staff are responsible for inspecting the samples to ensure they are properly preserved labeled and sealed If the samples are to be analyzed on site they should be delivered to the Minto Lab as soon as possible Samples that require external analysis must be shipped t

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