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Pollutant Load Reduction Model (PLRM)

1. m um um m um Gm GE Gm Gm mo Emo mo BASIN SWT Depth Gage and Staff Plate Vertical Passive Samplers Basin Inlet Basin Outlet PROFILE Bypass Outlet Water Quality Volume yp u Basin Inlet 1 _ 1 Treatment Outlet L Depth Gage and Staff Plate IL Basin Outlet Vertical Passive Samplers SITE INSTRUMENTATION Depth Gage installed in basin to record water depth continuously on 15 minute intervals and create surface water hydrology time series e Staff Plate is installed to QA QC depth data 4 8 Basin Passive Samplers are installed within basin 2 4 at inlet and 2 4 at outlet depending on basin depth at invert of bypass outlet Samplers are installed to collect samples at various water surface elevations to standardize sampling based on relative basin stage e Inlet and outlet sampler elevations are matched as closely as possible to create inlet outlet sample pairs This technique assumes that at the same basin stage the inlet outlet sampler pairs are collect
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3. Matrix spike 1 per 10 Laboratory Reagent Blank lt 2 2 MDL or Reprocess LRB 1096 of sample 1 per 20 or batch concentration Continuing Calibration MDL Correct problem Blank CCB after ICAL and all samples every 10 samples and end since last compliant of run CCB samples Lab Fortified Blank 1 per 15 Recalibrate batch 61 WETLAB Quality Assurance Plan Revision Dale Apr 2007 Origina Gate May 2002 Revision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROL ITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION Anions by IC Initial calibration curve r20 995 Rerun calibration standards Chloride Nitrate Nitrite Sulfate Instrument Performance 10 Reanalyze IPC if Check Sample IPC second analysis analyze after ICAL every still out recalibrate 10 samples and end of run and reanalyze samples since last compliant IPC Calibration Blank lt MDL Determine cause Analyze with each IPC of blank problem reanalyze all samples since last compliant calibration blank Lab Fortified Blank one 10 Correct problem per batch and reanalyze batch 20 If LFB OK flag sample suspect due to matrix Duplicates 25 RPD Reprep dups and reanalyze Spiked Samples TDS TSS Method Blank Reporting Limit Determine cause Total of blank problem Solids reanalyze set if T Vol
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5. gt c gt Site Time Date IN SITU WATER INSTRUMENT CHECKLIST PLEASE FILL OUT EVERY TIME INSTRUMENT IS SERVICED DOWNLOADED CHECKED ETC D Date Time Site Personnel Gage File Extracted Start Notes Capacity Changed EN Name Interval Mode Time __ C __ C i j j ooo j Oj C 1 eu Eom 2NDNATURE 321 Frederick Street Santa Cruz 95062 t 831 426 9119 f 831 421 9023 www 2ndnaturellc com PROJECT NAME AND JOB SEND CERTIFIED RESULTS TO ELECTRONIC DELIVERABLE FORMAT YES NO RELEASED BY Sampler Date SAMPLE CONTAINERS Sample Filtered i 2 5L bottle Other composite Chlorophyll Samples Date amp Time RECEIVED BY NO NH SRP DP DKN CHAIN OF CUSTODY RECORD PAGE OF LABORATORY TURNAROUND TIME Standard 24hr Rush 48hr Rush 72hr Rush GLOBAL I D REQUESTED ANALYSIS Additional Nutrients Analysis Filtered TSS Grain Size Date amp Time SAMPLE CONDITION circle one Ambient Refrigerated Ice Ambient Refrigerated Ice Ambient Refrigerated Ice Ambient Refrigerated Ice Ambient Refrigerated Ice 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personn
6. If gt 10 recalibrate and continue analysis If gt 15 recalibrate and reanalyze ail samples since last com pliant continuing cal standard samples and at end of run Calibration blank Rerun blank or after each continuing recalibrate and calibration standard rerun all samples since last compliant calibration blank Determine cause of problem redigest Laboratory Reagent Blank LRB 2 2 the analyte MDL 1 per 20 or batch or lt 10 sample set if necessary analyte level and reanalyze whichever is greater Spiked Samples Lab Fortified Sample Matrix one per 10 samples 30 Recovery not calculated if spike added is 3095 of sample conc Redigest or if LFB OK flag data as suspect due to matrix interference 60 WETEAB Quafity Assurance Plan Revislan Date 2007 Original Date May 2002 Revision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROL ITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION Mercury 245 1 Initial Calibration r20 995 Recalibrate 5 std 1 blank Continuing calibration Initial 5 Recalibrate Instrument Performance subsequent 10 reanalyze all Check IPC after ICAL samples since last every 10 samples and end compliant IPC of run 30 If LFB OK then flag sample result as suspect due to matrix interference Diaes See SQP
7. wuww 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 16 e Following completion of the simulation which takes approximately 2 5 minutes an additional 250mL of water is applied using a squirt bottle to rinse the collection pan and capture all material transported from the road to the collection pan into the sample e For each sample turbidity is measured in the field using a Hach 2100P or LaMotte 2020 portable turbidimeter e Collected water samples are then submitted to WETLAB for analysis following proper handling protocols e Field triplicates and a field blank are collected and submitted to WETLAB at least once during a sampling period to QA QC field techniques Road Shoulder Infiltration Infiltration and compaction measurements will be collected across a range of Lake Tahoe Basin road shoulder conditions to evaluate how well current PLRM algorithms predict average saturated hydraulic conductivity Ksat on road shoulders and whether Ksat is a reliable indicator of surface infiltration capacity The following protocols will be implemented e Select 15 road shoulders to perform infiltration and compaction tests For the same soil map unit or structural fill read shoulders will be selected to measure a range of compaction levels that will be categorized based on visual inspection as None Moderate and Severe o A total of 6 measurements will be made for primary roads 3 compaction levels
8. MONITORING WELL MW Z EL 6260 8 ONDNATURE LLC TEL 831 426 9119 FAx 831 421 9023 ELOISE BASIN MONITORING LOCATIONS FIGURE 2 10 wuww 2ndnaturellc com Ad 3 31 53 Photo Source Google Earth Note Photos are provided for orientation purposes only Following in depth site surveys improved graphics will be Depth Gage and Staff Plate provided in the technical report Flow Path Estimated SWT Boundary 7 ONDNATURE LLC 831 426 9119 Eum WILDWOOD BASIN MONITORING Locations FIGURE 2 11 endnaturellc com q3N591S3Q Trout Ave Brook Ave b d on o e e 4 Photo Source Google Earth Note Photos are provided for orientation purposes only LEGEND Following in depth site surveys improved graphics will be provided in the technical report Depth Gage and Staff Plate lt Flow Path Estimated SWT Boundary CNONATURE LLC TEL 831 426 9119 FAK 831 421 9028 COON STREET BASIN MONITORING Locations FIGURE 2 12 WwuwwWw 2ndnaturellc com GANSISAQG PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 31 Additional SWTs The 2NDNATURE team is investigating the inclusion of two additional SWTs into the Phase II monitoring and analysis Caltrans has been monitoring the stormwater treatment capability of the bed filters installed on Highway 50 between Meyers and South Lake Tahoe for several years The 2NDNATURE Team will coordin
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10. ips rans brags pa mer pya uges z ed I EDS 2 ACTES Ty ire eed bed beens IS TEE E3612 HET RSS ER HA i E tte 07294 it H 047 4 58 rice 75 5 90 overs Ht pya T ities sess eit HE ashe CIELO TG SO RUE innu RAIN re EEE ENST NW tr Shieh edt heres el tee 5 pres errire teiste NAISTES HA 11 Hip E Dant SUD CHERE RATES 32 4 R TE TETE SES eq PEL TE vasti on SESE 271415222 H d Que zit TP ltt urn stan grad mere JI rt ci eee pletion SENTE inzinliieisterneimunna Mun iiit reverses titres tices nat RATES HR PANNE bes rt pere 325 St 11 9242214114 PETET TH Pes pees edt baa irt SHAB i i Tele menn EACH Pen er EEL S Fae thawed 717 471 Feet ei frs 4 SUIS iUm c4 ak rh bard MUT IR D MEI Se Peep rede
11. AjsueqpiuyeJ oq 4l Lpeouog JICHILLpeosoqo edo speouoqo uonipsun gt d peouoq pudquauubesy va epooeisr a FIGURE 4 1 STUDY DATABASE STRUCTURE FAH 831 421 9023 TEL 831 426 9119 wuww 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 44 CHAPTER FIVE FIELD PROTOCOLS Keys to good field work Be safe Event sampling is by nature hazardous due to storm conditions Field personnel should always wear proper protective clothing when outside during a storm Personnel safety always comes first Use best professional judgment If conditions do not allow safe access to the sampler personnel should wait until safe conditions exist Be safer Road sampling is dangerous and some sites are in heavily trafficked areas Use traffic cones to alert divert traffic as necessary All field personnel should wear orange safety vests when conducting CRC evaluations Follow the protocols closely and review prior to each field mobilization Use the provided data sheets Take detailed field notes in a field notebook At the end of the field day spend several minutes reviewing notes and adding any additional information observations problems encountered suggestions etc Take photos detailing station condit
12. Douglas County 2 1 Ces PTT TT County wo 31 J e 2 af Twastoe T2 2 a 1 Table does not include the 2 commercial parking lot sites under private jurisdiction P Primary Road Secondary Road URBAN ROAD MONITORING ROAD SEGMENTS OVERVIEW G U R E 2 2 Round Hill Kingsbury A LEGEND Road Risk of Road Segment Elk Paint Grade SOUTH SHORE Edgewood Tahoe Golf d e s Course 9 High A Moderate A Low Stateline gt Hs Keller Canyon Camp Richardson EN KINGSBURY GRADE br i LA AN ut dl Meadow J e c ie fr d L 2d p 5 4 M L R ck Rd E m gt S imm k A s 6 E uM Sf Chimney NN 5 mu pen mm Y Kingsbury 1 L Paiewood Dr 9 E f 7 ig 18915 nopean HIGH MEADOW Jan z i um E a zi V ke Marshall Trail 1 2NDNATURE LLC TEL 891 426 9119 FAR 8814218028 URBAN ROAD SEGMENTS SOUTH SHORE FIGURE 2 3A Wwuww 2ndnaturellc com qaN9lSad Round Hill Kingsbury A LEGEND Road Risk of Road Segment Elk Paint Grade SOUTH SHORE Edgewood Taho
13. 18 1 4 Specific gravity if unusually high or low 18 1 5 Any difficulty in dispersing the fraction passing the No 10 2 00 mm sieve indicating any change in type and amount of dispersing agent and 18 1 6 The dispersion device used and the length of the dispersion period Note 16 This tabulation of graph represents the gradation of the sample tested If particles larger than those contained in the sample were removed before testing the report shall so state giving the amount and maximum size 18 2 For materials tested for compliance with definite speci fications the fractions called for in such specifications shall be reported The fractions smaller than the No 10 sieve shall be read from the graph 18 3 For materials for which compliance with definite specifications is not indicated and when the soil is composed almost entirely of particles passing the No 4 4 75 mm sieve the results read from the graph may be reported as follows 1 Gravel passing 3 in and retained on No 4 sieve 2 Sand passing No 4 sieve and retained on No 200 sieve J a Coarse sand passing No 4 sieve and retained 10 sieve b Medium sand passing No 10 sieve and retained on No 40 sieve c Fine sand passing No 40 sieve and retained No 200 sieve 3 Silt size 0 074 to 0 005 mm 22222 4 Clay size smallerthanO 005mm Colloids smaller than 0 001 mm 18
14. 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com ONCE EVERY 3 5 YEARS Lake Tahoe Basin C Road Segment 10 000 d40ad length gt road road shoulder shoulder I road width gt GIS analysis of A8 a3N9IlS3d Road Risk Category Characterized by T PHR PMR SHR PLR SMR SLR Rx Road Shoulder Condition Jurisdiction 53 Road Surface Integrity H M L EVENT BASED 1 x1 squares within Road Segment 10 0008 4 Material Accumulation Category Low Moderate High Dry Material Sampling from all 3 categories Volume Mass ml mg Particle Size Distribution 76 of mass 16um limited 51 Degree of Fines M L Road Surface Integrity H M Controlled Experiments obtain wet sample from 1 material accumulation category TSS and FSP Concentrations mg L Visual observations of Material Accumulation Categor Particle Size Distribution of TSS y Degree of Fines M L a 31 Road Surface Integrity M L Moderate J Low 1 PLRM defines the road shoulder to include the pervious area of the right of way For the purposes of this monitoring only the impervious portion of the road shoulder is considered part of the road segment CNONATURE LLC TEL 831 426 9119 FA 831 481
15. 6 ASS m A ua s 6 SVT Das us a at Cd does 19 PLRM Model VO AUC III oT 38 Chapter Three Sample Delivery and 40 Water Quality Samples uyu ai dd 40 uuu TTE 41 Chapter Four Data ManageMe nt ccccccsseccccssecccecesecccenscccsenececeuseceseusececsuecessuseceseuecessueceeeeueeeeenececseecessuaceeseaness 42 Chapter Hyer m 44 Attached TO LOC ONS nn 45 Date Neel it rie cities io een io ee ia aient non 45 a de un a m masa 46 PROTOCOLS FELD DATASHEET p APPENDIX A WETLab Quality Assurance Plan sees enne nnns APPENDIX B Cooper Laboratory Documentation 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p ii LIST OF TABLES 11 SNPLMA Monitoring Project Schedule 1 2 1 Urban Road Monitoring Road SEQMENtsS cccccssccccsssecccesseccccesececeuseccceececeeeeceseueceseuneeesenecessuneceetegeeeeees 8 2 2 SWT Monitoring Site Instrumenta
16. Complete only once at first site visit Data will generate RS field map and data table All field observations are conducted looking downslope along road segment length Road Segment RS ID Field Personnel Road Name Segment Boundaries Upslope Downslope Road Segment Length ft Road Segment Width ft Date Time Metadata Road Segment Slope H Le Road Segment Tilt Dominant Direction L R Severity H M L Road Surface Integrity H M L LEFT ROAD SHOULDER Protected Yes No Type Fencing Paving Boulders Other LRS Protected 0 25 25 50 50 75 75 100 Stabilized Yes No Dominant Type Curb and Gutter Rock Lined Other Distribution Curb and Gutter Rock Lined Other Severity of flow path erosion H M L Notes RIGHT ROAD SHOULDER Protected Yes No Type Fencing Paving Boulders Other RRS Protected 0 25 25 50 50 75 75 100 Stabilized Yes No Dominant Type Curb and Gutter Rock Lined Other Distribution Curb and Gutter Rock Lined Other Severity of flow path erosion 1 2NDNATURE LLC 321 Frederick Street Santa Cruz California 95062 phone 831 426 9119 fax 831 421 9023 email infoe2ndnaturellc com Lake Tahoe PLRM Database Refinement i May 15 2009 Final Sampling Plan page 2 Road Condition Visual Observations Dry Material Sampling and Wet Sediment Sampling Complete every site visit
17. If any of these results do not occur replace media Klebsiella pneumoniae 1 0 E Coli 1 1 BERNER MERI Autofluorescence Must not occur Replace media Sterility Check No growth accepted Replace containers Accuracy Check 2 5 Replace containers Fecal Coliform Method Blank No growth Determine cause of blank problem Reanalyze set if necessary Control Organism Pseudomonas If any of these Check aeruginosa 0 0 results do not occur replace Klebsiella media pneumoniae 1 0 E Coli 1 1 pH Check 7 4 0 2 SU Replace Media Replace media Sterility Check No growth accepted Replace containers Accuracy Check 2 5 containers filter funnels graduated cylinders 64 WETLAB Quality Assurance Plan Revislon Date Apr 2007 Original Date 2002 Revision Na 4 Appendix E Method Specific Calibration and QC Criteria cont METHOD CONTROL ACCEPTANCE CORRECTIVE ITEM CRITERIA ACTION 6010B Initial Calibration Minimum of a blank and one standard Initial Calibration 10 Recalibrate Verification ICV Continuing 10 Calibration Verification CCV last compliant CCV Calibration Blank lt 3 x IDL Recalibrate and after each ICV reanalyze all samples since last compliant calibration blank Not gt MDL Determine cause of problem redigest set if necessary and CCV 25 ANALYSIS ICP Metals Recalibrate verify calibratio
18. LIST OF STANDARD OPERATING PROCEDURES Continued TITLE COLOR SM 2120B THRESHOLD ODOR TEST EPA 140 1 ELECTRICAL CONDUCTIVITY SM 2510B FLUORIDE SM 4500 FL C METEORIC WATER MOBILTY PROCEDURE MWMP ASTM E2242 02 PERCENT MOISTUR SOLIDS IN SOILS EPA160 3 TOTAL DISSOLVED SOLIDS SM 2540C TOTAL SUSPENDED SOLIDS SM 2540 D EPA 160 2 TURBIDITY EPA 180 1 ALKALINITY SM 2320B ANIONS ION CHROMATOGRAPHY 300 0 TOTAL amp ORTHO PHOSPHOROUS EPA 365 3 4500P E PREPARATION OF SATURATED SOIL PASTE NITRITE SM 4500 NO2 B ACIDITY SM 2310B AMMONIA NITROGEN SM 4500 NH3 D EPA 350 3 TOTAL KJELDAHL NITROGEN EPA 351 3 TOTAL VOLATILE SOLIDS EPA 160 4 CYANATE SM 4500 L CYANIDE WEAK ACID DISSOCIABLE SM 4500 CN CYANIDE TOTAL SM 4500 CN C CYANIDE AMENABLE BY ISE SM 4500 CN F SW846 9213 47 SOP NO REV NO 8 38 REV 5 8 39 REV 0 8 40 REV 0 8 41 REV 0 8 43 REV 0 8 42 REV 0 8 44 REV 3 QUALITY ASSURANCE SOP NO REV NO 9 01 REV 0 9 04 REV 1 9 05 REV 0 9 06 REV 1 9 07 REV 0 9 09 REV 1 9 11 REV 0 9 12 REV 0 9 13 REV 0 WETLAB Quatity Assurance Plan Revisian Date Apr 2007 Original Dale May 2002 Revision 4 Western Environmental Testing Lab LIST OF STANDARD OPERATING PROCEDURES Continued GENERAL CHEMISTRY Continued DATE 01 25 06 08 08 03 09 29 03 09 30 03 05 03 04 06 16 06 04 18 07 DATE 09 26 03 02 17 04
19. ey Follow the instructions provided in the Nalgene Installation Guide briefly summarized below a Grate mounting Hang mounting tube from stormwater grate near the edge of the storm drain chamber using wire hanger provided in mounting kit cable or string b Ditch mounting i Dig a hole deep enough to set the sampler at grade Be sure to place dirt at the downstream end of the hole ii Drive mounting stake into downstream side of hole with open side of V facing upstream iii Set mounting tube at grade and secure to stake using screwdriver and clamp iv Backfill the hole ensuring that water is directed towards the passive sample If necessary secure Mounting Kit against vandalism using lock Test placement of Storm Water Sampler within Mounting Kit Use level to ensure sampler rests evenly on housing Make any adjustments necessary Installation Hanging Units with Stream Detention Basin etc Personnel Needed 1 2 experienced field personnel 6 8 hours per station to install passive samplers Equipment Needed three 3 Nalgene Stormwater Samplers Cat No 1100 1000 three 3 Nalgene Stormwater Mounting Kits includes mounting tube clamp wire hanger cable tie and mounting stake slot headed screwdriver flagging shovel digging bar Nalgene Installation Guide vertical steel sign fence post or rebar side braces ONONRTURE P some can lock post driver level radiator clamps tools drill Instal
20. repeated application of the process under specified conditions It is concerned with the closeness of results Primary Standard A substance or artifact the value of which can be accepted within specific limits without question when used to establish the value of the same or related property of another material Note that the primary standard for one user may have been a secondary standard of another Procedure A set of systematic instructions for using a method of measurement or the steps or operations associated with them Quality An estimation of acceptability or suitability for a given purpose of an object item or tangible or intangible thing Quality Assessment The overall system of activities whose purpose is to provide assurance that the quality control activities are done effectively It involves a continuing evaluation of performance of the production system and the quality of the product produced Quality Assurance A system of activities to provide to the producer user of a product service the assurance that it meets defined standards of quality utilizing quality control and quality assessment Quality Control The overall system to control the quality of a product or service so that it meets the needs of users The aim is to provide quality that is satisfactory adequate dependable and economic 38 WETLAB Quality Assurance Pian Revision Date Apr 2007 Original Date May 2002 Revision No 4 Relative Stan
21. 02 18 04 05 17 03 11 07 03 05 16 03 02 12 04 02 18 04 04 30 04 TITLE AND GREASE EPA 1664 CHEMICAL OXYGEN DEMAND SM 5220D RESIDUAL CHLORINE SM 4500 CL F ALKALINITY AND ACIDITY SM 2320B 2310B ACID GENERATING NUETRALIZING POTENTIAL QUALITATIVE SULFIDES TKN T P BY FLOW INJECTION ANALYSIS EPA 351 2 365 4 TITLE DAILY LAB QC amp PIPETTE CALIBRATION GLASSWARE CLEANING PREPARATION OF STANDARD OPERATING PROCEDURES CORRECTIVE ACTION AND DOCUMENTATION INTEGRATION OF CHROMATOGRAPHY PEAKS REVIEW OF DATA LAB RECORDS AND REPORTS MANAGEMENT ASSESSMENT PROGRAM CONTRACT REVIEW PERFORMANCE EVALUATION PROGRAM 48 WETLAB Quality Assurance Plan Revision Date Apr 2007 Orginal Date May 2002 Ravision No 4 Western Environmental Testing Lab LIST OF STANDARD OPERATING PROCEDURES Continued SOP NO REV NO DATE TITLE 9 14 REV 0 04 01 04 PERSONNELTRAINING AND CERTIFICATION 9 16 REV 1 05 16 03 REVIEWING AND DOCUMENTING CHANGES MADE TO DATA AFTER REPORT PREPARATION 9 17 REV 1 01 30 04 VALIDATION OF NON STANDARD OR LAB DEVELOPED METHODS MICROBIOLOGY 10 02 REV 2 10 27 04 FECAL COLIFORM BY MEMBRANE FILTRATION 10 03 REV 2 03 30 06 TOTAL COLIFORMS AND E COLI BY COLILERT QUANTITRAY SM 9223 B SAMPLE VANAGEMENT 11 01 REV 5 04 13 07 SAMPLE LOG IN 11 02 REV 1 05 16 03 WASTE DISPOSAL 11 03 REV 0 06 17 02 WASTEWATER SLUG DISCHARGE CONTROL PLAN 11 04 REV 0 09 30 03 SAMPLE BOTTLE AND EQU
22. Container Preservative Hold Time 200 6010 All metals 200 ml 1 500ml HNOs pH lt 2 6 months except P 6020 7000 Cr VI and Hg 20 g Solid 250m G 245 7470 Mercury 200 ml 1 500ml lt 2 28 days P 7471 20 g Solid 250ml 218 3500 Chromium hex 200 ml 1LP 2 6 C 24 hours 7196 7197 20 9 Solid 250mL G Organics Method Parameter Amount Container Preservative Hold Time 608 8081W Pesticides 1000 mL 2 1L G amber 2 6 C 252 7 40 days chlorinated pH 5 9 Organophosphorus pesticides W chlorinated 1 1 1 W chlorinated 418 1 W TPH in water 1000mL 1 1L G amber 2 6 1 1 H2SO4 484445 1009 18026 260 14days Notes For holding time 7 30 or X Y means 7 days for extraction plus 30 Y additional days for analysis P Plastic G Glass 25203 Sodium thiosulfate H2SO4 Sulfuric acid HCL Hydorchloric acid MCA Monochloroacetic acid 828085 Volatile Organics GC MS 43 WETLAS Quality Assurance Pian Revision Data Apr 2007 Original Dale May 2002 Revision No 4 TABLE 1 SAMPLE PRESERVATIVES AND HOLD TIMES RADIONUCLIDES Method Radiological all except Hold Time 2 1 2 Gallon P 250 None None 6 months 6 months 1 Gallon 50 g solid Rn222 and Tritium RN 222 Radon 222 2x40 mL amber 250 ml AQ 300 g sample size varies with solid moisture 1 250 mL
23. Continuing calibration usually includes measurement of the instrument response to fewer calibration standards and requires instrument response to compare with certain limits e g 1076 of the initial measured instrument response Continuing calibration may be used within an analytical sequence to verify stable calibration throughout the sequence and or to demonstrate that instrument response did not drift during a period of non use of the 16 6 0 5 2 5 3 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date 2002 Revision No 4 instrument Calibration Verification Required calibration verification frequency and criteria for inorganic and organic analyses are method specific and are delineated within the respective SOP and Appendix E No instrument calibration verification is employed in the methods for acidity alkalinity BOD color corrosivity DO gravimetric oil and grease hardness ignitability and all of the solids methods For microbiology total coliforms must be accompanied by a blank and for fecal coliforms a positive and negative control must be run with each new lot of media Instrument Maintenance Corrective action in the form of maintenance may be required in cases where an instrument either continues to fail initia calibration or drifts out of calibration Regularly scheduled preventive maintenance may also be used in accordance with the manufacturer s suggested program Each inst
24. Lake Tahoe Pollutant Loading Reduction Model PLRM Database Refinement Final Phase Monitoring Plan Prepared for USDA Forest Service Pacific Southwest Research Station July 2010 This research was supported through a grant with the USDA Forest Service Pacific Southwest Research Station and using funds provided by the Bureau of Land Management through the sale of public lands as authorized by the Southern Nevada Public Land Management Act http www fs fed us psw partnerships tahoescience The views in this report are those of the authors and do not nec ON N essary reflect those of the USDA Forest Service Pacific Southwest Research Station or the USDI Bureau of Land Management ES m ECOSYSTEM SCIENCE DESIGN nh 321 Frederick Street Santa Cruz California 95062 p 831 426 9119 f 831 421 9023 w 2ndnatureinc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p i TABLE OF CONTENTS Chapter One 1 SNPLMA Data Collection PUrPOSe cccscsesssssscsonssscccusuescessscncussscucuseuceceusucseussscneususeceusrcescussscnoususeseusrescesssensuaens 1 BACKOROUND Mmm eee rere un u ene cen 2 Goals of SNPLMA Data Ev edem n 5 Chapter Two Data Collection S IF dLOBy uuu uuu uuu l etu ES aem Q ate ae dea UE
25. Tool Box General Road Segment Site Set up Safety Field Protocols NOTE Field personnel safety is of utmost importance Use extreme caution when working on side of road 1 SAFETY a Field truck should be parked completely on road shoulder out of drive lane Park in area of high visibility avoid curves in road etc When parked put on 4 way flashers b All field personnel should wear brightly colored safety vests c Place traffic cones on side of road Cones should provide adequate warning to traffic up to 200 yards away in both directions for high speed roads Cones should be placed every 50 100 yards and extend a few feet into drive lane to create buffer for field personnel while minimizing motorist disturbance and without forcing cars into oncoming traffic lane d The orange cones create the safety zone i Never stand outside of safety zone Set up all equipment several feet within safety zone Unless absolutely necessary do not stand between equipment and edge of safety zone iv Unless absolutely necessary do not stand kneel with back to oncoming traffic e Look out for one another If someone has his her head down sweeping the road someone else should be looking out for traffic and providing warnings If someone yells Move don t think just move Check weather and highway conditions prior to starting the day to ensure access to road sites i NDOT http www nevadadot com traveler roads li Ca
26. 28 2 11 Wildwood Basin Monitoring 5 29 2 12 Street Basin Monitoring LOCATIONS 30 2 13 SWT EHI AUS 34 2 14 Cross Section Schematics of SWT Sample Collection Winter 2010 35 4 1 Study Ddtabase anti 43 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan 1 CHAPTER ONE INTRODUCTION PHASE DATA COLLECTION PURPOSE AND SCHEDULE The USDA Forest Service Pacific Southwest Research Station awarded 2NDNATURE a grant using SNPLMA Round 9 funding to build upon the data collection strategy and initial data collection efforts funded by the US Army Corps of Engineers ACOE during 2009 The ACOE research is Phase and the SNPLMA research Phase II of the PLRM Database Refinement Study The 2NDNATURE Team designed the data collection strategy to test and inform a number of assumptions within the current suite of Lake Tahoe urban stormwater management tools particularly PLRM but also the BMP RAM and Road RAM The Monitoring Plan for the ACOE Lake Tahoe PLRM Database Refinement Study 2NDNATURE 20093 was submitted to the ACOE in July 2009 following the completion of the Phase I data collection efforts to ensure an accurate summary of the complete data collection strategy The Phase I Monitoring Plan 2NDNATURE 20093 include
27. Bypass Channel PA1_IN Park Ave Inlet PALIN OU 2 6236 06 2 6235 79 1 6235 53 1 6235 37 OUT Source 2NDNATURE 2008 PA1_INB ONDNATURE LLC Rocky Point Inlet EEE PARK AVENUE BASINS MONITORING LOCATIONS FIGU RE 2 wuww 2ndnaturellc com A8 GANSISAG Depth Gage and Staff Plate Vertical Passive Samplers Flow Meter Flow Path Estimated SWT Boundary 1 x E Po 2 e JNDNRTURE LLC TEL 831 426 9119 FA 831 421 9023 wuww 2ndnaturellc com Rocky Point NORTH BASIN CONNECTION PIPE IPS OOT RPS Rocky Point A Srp SouTH BASIN Ro RPS_IN a RPS_IN RPS_C RPS_OUT Eom euer 310265 tow ramas T aa 10130 waist Ley o to Photo Source Google Earth Note Photos are provided for orientation purposes only Following in depth site surveys improved graphics will be provided in the technical report ROCKY POINT SOUTH BASIN MONITORING LOCATIONS G U R E 2 8 PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 26 Blue Lakes Basin Dry Basin Figure 2 9 Blue Lakes Basin monitoring will include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations The Blue Lakes Basin was selected because it has a classic design that allows for easy instrumentation and monitoring is unlikely to have significant groundwater impacts on infiltration
28. CHARACTERISTIC EFFLUENT CONCENTRATIONS The PLRM provides a function to estimate the performance of a stormwater treatment BMP SWT by assigning a characteristic effluent concentration CEC depending on the type of SWT and fundamental design parameters An SWT is defined as a Treatment BMP that reduces pollutants of concern from a concentrated stormwater flow path PLRM estimates the CEC from 6 specific SWT types dry basin wet basin infiltration basin treatment vault cartridge filter and bed filter Based on SWT type there are specific key design parameters the user inputs into the model and which affect the CEC estimates These key SWT design parameters include water quality volume 0 footprint ft infiltration rate in hr draw down time hr and minimum hydraulic residence time hr among others and vary with the SWT type see PLRM User Manual nhc et al 2009b for details PLRM provides some guidance and suggested ranges for each input parameter however the modeler chooses the specific inputs based on the average expected condition over the lifespan of the SWT based on anticipated maintenance practices PLRM assumes reasonable maintenance is performed to ensure acceptable water quality treatment function of each SWT There exists a significant lack of understanding of how SWT condition influences expected water quality treatment performance but Lake Tahoe resource managers and research personnel agree upon the need for continued
29. Field Datasheet Pen Data Collection 1 Ensure all equipment is clean and ideally store equipment together in bucket to avoid confusion with wet sampling equipment Avoid use of water but wipe down all equipment using paper towels rags If equipment is rinsed dry completely prior to collecting samples 2 Dry material sampling is conducted in each of the three material accumulation categories high moderate low as designated by road condition visual observations Select locations that are at a minimum 1 x1 a b d e Prepare location by sweeping dust and debris in a 1 2ft line Place 1 x1 square on road surface with plastic sheet on the downslope downtilt side Using tape secure inside edge of square to road surface to hold square in place and allow for easy removal of road sediment Ensure that tape does not reduce sampling area below 1 ft Using hand broom sweep all material from inside square on to plastic sheet Hold down edges of square as necessary to prevent movement Gather all material into center of plastic and carefully transfer volume to graduated cylinder 3 Record data on field datasheet a Sample ID Format is Site Code_AccumulationCategory amp Replicate Number i For example DD_H1 is the first sample taken in the high material accumulation area from Dale Drive Time of sample collection in 24 hour format Location on road flow path road shoulder drive lane Material accumulation c
30. No 200 75 No 8 2 36 3 7 Water Bath or Constant Temperature Room A water bath or constant temperature room for maintaining the soil suspension at a constant temperature during the hydrometer analysis A satisfactory water tank is an insulated tank that maintains the temperature of the suspension at a convenient constant temperature at or near 68 F 20 C Such a device is illustrated in Fig 4 In cases where the work is performed in a room at an automatically controlled constant temperature the water bath is not necessary 3 8 Beaker A beaker of 250 mL capacity 3 9 Timing Device A watch or clock with a second hand 4 Dispersing Agent 4 1 A solution of sodium hexametaphosphate sometimes called sodium metaphosphate shall be used in distilled or demineralized water at the rate of 40 g of sodium hexametaphosphate litre of solution Note 7 Note 7 Solutions of this salt if acidic slowly revert or hydrolyze back to the orthophosphate form with a resultant decrease in dispersive action Solutions should be prepared frequently at least once a month or adjusted to pH of 8 or 9 by means of sodium carbonate Bottles containing solutions should have the date of preparation marked on them 4 2 All water used shall be either distilled or demineralized water The water for a hydrometer test shall be brought to the temperature that is expected to prevail during the hydrometer test For example if the sedimentation cy
31. Results of both external and internal performance audits are distributed to laboratory management for review and action as appropriate After acceptable corrective action responses are received and verified for all noted deficiencies the audit is closed and management receives a written status report Audits 2 3 1 Internal Audits Planned and scheduled internal audits are performed to verify compliance with all aspects of the QA program and to determine its effectiveness It is intended that internal QA audits be utilized as a management too for enhancement of project operations functions and quality Internal systems audits for each department are performed on years when no external agency is auditing These audits are performed by QA personnel in accordance with written procedures and checklists The QA Manager performing these audits has stop work authority for the activities audited The scope of these audits include verification of compliance to the quality systems and technical evaluation in the areas of control of equipment personnel certification analytical SOPs sample ID and storage standards preparation and tracking and data documentation Audit results are reported in writing to responsible management for review and corrective action if necessary A maximum of 30 days is given to respond to the original report The original copy of the completed report with responses 15 kept on file by the QA Department QA personnel follow up
32. Standard Method A method or procedure of test developed by a standards writing organization based on a consensus opinion or other criteria by a collaborative testing procedure Standard Operating Procedure SOP A procedure adopted for repetitive use when performing a specific measurement or sampling operation Surrogate A compound that is added to each sample to monitor extraction and purge efficiency Travel Blank Reagent water that is placed in a sample container and treated like samples in terms of exposure to site conditions storage etc Generally analyzed for VOCs only Traceabilitv The ability to trace the source of uncertainty of a measurement or a measured value Warning Limits The limits shown on a control chart within which most of the test results are expected to lie within a 9596 probability while the system remains in a state of statistical control 39 WETLA Quality Assurance Plan Ravislon Dale Apr 2007 Original Date 2002 Revision Na 4 APPENDIX B CONTAINERS PRESERVATIVES amp HOLDING TIMES 40 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 SAMPLE PRESERVATIVES AND HOLD TIMES DRINKING WATER Method Hold Time 310 305 Alkalinity 100 ml 1 500m 2 6 14 days 5 2320 Acidi 48 hours 300 0 Chioride 500 ml 1 500ml P 2 6 28 days Bromide 300 0 Nitrate nitrite 100 ml 1 250 ml P 2 6 48 hours SM4500 35
33. T TABULIS Depth Gage and Staff Plate Vertical Passive Samplers Flow Meter Flow Path Estimated SWT Boundary CNONATURE LLC TEL 831 426 9119 FA 831 481 9083 wuww 2ndnaturellc com Height BL_IN BESOUT 2 N Emm ae Ad Photo Source Google Earth P Note Photos are provided for orientation purposes only Following in depth site surveys improved graphics will be provided in the technical report BLUE LAKES BASIN MONITORING LOCATIONS FIGURE 2 9 2 MW 9A is located approximately 125 downgradient N of Basin outlet TOC El 6256 84 amp PROJECT BENCHMARK EXISTING MONUMENT Y EL 6256 53 BASED ON ELEVATION AT MW 4C MONITORING WELLS TOP MW YB EL 6259 0 BOTTOM MW YA EL 6258 7 imn BASIN OUTLET RISER AND TRASH RACK INLET EL 6294 6 DEPTH GAUGE EL 6251 4 MONITORING WELLS TOP MW XB EL 6258 8 EXISTING MW 4C EL 6256 32 ELEVATION PROVIDED BY OTHERS SWMS INVERT EL 6252 1 GROUND EL 6255 8 LEGEND lt Existing Surface Water Drainage Existing Drainage Pipe approx Existing Drop Inlet approx 0 Existing Fence approx Existing Vegetation approx 297 Existing Building approx Q Monitoring Well Surface Water Monitoring Station swms Regional Groundwater Gradient Depth Gauge Detention Basin Boundary SCALE 1 480
34. the order of 2 ft min some small air compressors are not capable of supplying sufficient air to operate a cup Note 4 Another air type dispersion device known as a dispersion tube developed by Chu and Davidson at Iowa State College has been shown to give results equivalent to those secured by the air jet dispersion cups When it is used soaking of the sample can be done in the sedimentation cylinder thus eliminating the need for transferring the slurry When the air dispersion tube is used it shall be so indicated in the report Note 5 Water may condense in air lines when not in use This water must be removed either by using a water trap on the air line or by blowing the water out of the line before using any of the air for dispersion purposes 3 3 Hydrometer An ASTM hydrometer graduated to read in either specific gravity of the suspension or grams per litre of suspension and conforming to the requirements for hydrom eters 151 or 152H in Specifications E 100 Dimensions of both hydrometers are the same the scale being the only item of difference 3 4 Sedimentation Cylinder A glass cylinder essentially 18 in 457 mm in height and 2 in 63 5 mm in diameter and gt Detailed working drawings for this cup are available at a nominal cost from the American Society for Testing and Materials 100 Barr Harbor Drive West Conshohocken PA 19428 Order Adjunct No ADJD0422 Copyright ASTM International 100 Barr Harbo
35. 245 1 AND 7470A DETERMINATION OF TRACE ELEMENTS BY STABILIZED TEMPERATURE GRAPHITE FURNACE ATOMIC ABSORPTION EPA 200 9 279 2 3113B MERCURY DETERMINATION BY EPA 7471A DIGESTION OF AQUEOUS SAMPLES BY EPA METHOD 3010A DIGESTION OF SOLID SLUDGE SAMPLES BY EPA METHOD 3050A TOXICITY CHARACTERISTIC LEACHING PROCEDURE FOR METALS AND SEMI VOLATILES BY EPA METHOD 1311 ACID DIGESTION OF OILS FOR METALS ANALYSIS BY EPA METHOD 3031 INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY BY EPA 200 8 TITLE ANALYSIS OF LIQUIDS FOR PH BYSM 4500 B EPA150 1 ANALYSIS OF SOLIDS FOR PH BY EPA 9045B IGNITIBILITY FLASHPOINT OF LIQUIDS USEPA 1010 AND SOLIDS BIOCHEMICAL OXYGEN DEMAND SM 5210 B EPA 405 1 46 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 Western Environmental Testing Lab GENERAL CHEMISTRY Continued SOP NO 8 05 8 06 8 07 8 08 8 09 8 10 8 12 8 13 8 15 8 16 8 22 8 23 8 24 8 29 8 30 8 31 8 32 8 33 8 34 8 35 8 36 8 37 REV NO REV 1 REV 2 REV 3 REV 2 REV 0 REV 0 REV 6 REV 5 REV 1 REV 2 REV 5 REV 4 REV 1 REV 1 REV 1 REV 2 REV 3 REV 1 REV 1 REV 2 REV 3 REV 1 DATE 05 15 02 01 22 04 04 20 07 06 28 05 02 02 07 02 06 07 03 01 06 04 23 07 06 03 02 11 10 04 01 27 06 12 15 03 06 10 02 06 13 02 06 25 02 04 18 07 08 26 04 07 01 02 07 01 02 11 11 04 11 22 04 07 09 02
36. 9083 wuww 2ndnaturellc com URBAN ROAD MONITORING DATA COLLECTION SCHEMATIC FIG U R E 2 1 PLRM v1 Database Refinement FINAL Phase Monitoring Plan 8 Table 2 1 Urban Road Monitoring Road Segments Road TOT Road Risk Jurisdiction Responsible Road Type Segment Street Name estimate Code September 2009 Highway 50 CalTrans H281 Highway 28 CalTrans H28TC Highway 28 CalTrans H89S Highway 89 CalTrans Primary Highway 89 CalTrans SPP1 Highway 89 CalTrans Moderate Moderate El Dorado County NDOT Douglas County High High High Highway 28 NDOT O Highway 28 NDOT 1 Ski Run Boulevard CSLT Kingsbury Grade NDOT Douglas County Highway 28 Tahoe Blvd NDOT Washoe County Moderate CSLT Keller Road CSLT 3 Elwood Drive CSLT R O C W G3 Moderate G4 Moderate G5 R O J North Benjamin Drive Douglas County El Dorado County Placer County Placer County Placer County B1 Placer County Placer County Placer County Washoe County Washoe County DD Dalbrve Washoe County Moderate Washoe County Moderate 1 Moderate S BO1 K EW1 K K K HM3 El Dorado County MA Secondary 1 P Moderate K Moderate Douglas County Douglas County Moderate II Lee ca 05 ca 64 09 09 Road Data Collection Road sampling consists of a collection of visual observations as well as dry material and wet
37. CEC estimates based on SWT type and key design parameters and c Link average annual infiltration rates with measured CHP saturated hydraulic connectivity values to inform PLRM infiltration input requirements 4 Apply the PLRM to estimate and compare hydraulic capture among SWTs monitored Hydraulic capture can be estimated in the PLRM using basic design information for each SWT facility and the drainage conditions of the catchment s tributary to each SWT Information on hydraulic capture will allow the research team to estimate the frequency and magnitude of storm events that cause bypass to occur at each SWT which is a key consideration when developing improved CECs based on the monitoring data collected from this study 5 Collaborate with academic researchers in data and sample sharing for their development of appropriate numeric conversions from FSP concentrations and loads to of particles 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 6 CHAPTER TWO DATA COLLECTION STRATEGY LAND USE MONITORING PLRM estimates CRCs for urban land uses defined by the Lake Tahoe TMDL The Lake Tahoe TMDL and supporting tools have identified urban land uses and particularly roads as the main sources of pollutant loads to the Lake LRWQCB and NDEP 2008 nhc et al 2009a 2NDNATURE 2009c focused only on the collection of water qual
38. Check date and time Check battery level Set up instrument to start recording again on 15 minute intervals Fill out instrument maintenance log see Figure 6 11 attached at the end of this section Take photos 2 Clean sensor of any debris Check and maintain desiccants Replace as necessary 4 Place instrument back into housing and lock in place Sample Collection Personnel Needed 1 field personnel 1 2 hours per targeted event for pre event preparation of instrument 1 field personnel 1 2 hours per targeted event to collect samples following event Equipment Needed e sample analysis bottle computer cable sample analysis bottles distilled de ionized water ice cooler pens pencils field notebook camera sample labels chain of custody station monitoring log instrument logs Sample Collection 1 Pre event a Arrive at the station 24 hours prior to the targeted runoff event In the case of summer thunderstorms that come with little warning there may be insufficient time to deploy the samplers prior to the beginning of the event While not a preferred method sample bottles can be deployed QNONATURE B ecosystem Fa SCIENCE DESIGN 0 2 Pos a b and remain in the field in preparation for summer thunderstorm sampling However if this technique is used the sample bottles in the field must be checked and cleaned twice weekly to minimize the potential for contamination of
39. Date Apr 2007 Original Date 2002 Revision APPENDIX D EXAMPLE OF AN INTERNAL AUDIT CHECKLIST 54 INFERNAL AUDIT CHECKLIST Date of Audit Department QA QC Procedures Are analysts following procedures outlined in SOPs and methods Are standard curves prepared to adequately cover the expected concentration ranges of the sample Are standard curves prepared daily or verified daily Are new curves generated whenever out of control conditions are indicated or new reagents are prepared Is control chart data maintained and updated regularly Have method detection limits been determined for each matrix type and documented Have method detection limits been updated regularly according to method guidelines 1 Are the following run at a frequency consistent with the method and WETLAB standard operating procedures 1 1 Laboratory Control Samples 1 2 Method Blank 1 3 Calibration Blank 1 5 Spiked Duplicates 1 6 Duplicates Are trip and field blanks analyzed as needed Is the data reviewed by a supervisor peer and signed off before it leaves the department Are records kept of all lab observations and calculations and signed off by analyst or supervisor Are data review checklists used by all analyst Have contamination problems been encountered Were they documented and corrected Have any out of contro situations been encountered Was the corrective action plan documented Are SOPs and other refe
40. Monitoring Plan p 41 SWT AUTOMATED SAMPLER SAMPLES For samples collected by the automated sampler samples will be composited as follows see Protocols D F and G e All samples collected at the inlets will be composited e For short duration storms and or when the full hydrograph is not captured outflow samples will composited by lab into 1 sample e For long duration storms when the full hydrograph is captured outflow samples will be lab composited into 3 samples based on storm duration and flow intensity e Analytical replicates will be conducted regularly to document analytical precision SOIL SAMPLES All soil samples collected in the field will be submitted to Cooper Testing Laboratory for particle grain size distribution analysis Samples are submitted with the proper chain of custody forms see Protocols F and G A minimum mass of 50 grams approximately 30 mL is required for proper analysis The particle size analysis of soils ASTM D 422 63 includes a combination of sieves for particles gt 75um and a hydrometer particles lt 75um The resulting data is presented as the sample 96 finer than the following approximate particle sizes 9 5mm 3 8in sieve 4 76mm sieve 4 1 00mm 50um 35um 23um 13um 9um URBAN ROAD DRY SEDIMENT SAMPLES A fraction of the dry material samples collected from the urban road segments are kept and submitted for PSD analysis to refine the Road RAM and validate the degree of fin
41. Note 9 Add distilled or demineralized water if necessary so that the cup is more than half full Stir for a period of 1 min Note 9 A large size syringe is a convenient device for handling the water in the washing operation Other devices include the wash water bottle and a hose with nozzle connected to a pressurized distilled water tank 9 4 If stirring apparatus B Fig 3 is used remove the cover cap and connect the cup to a compressed air supply by means of a rubber hose A air gage must be on the line between the cup and the control valve Open the control valve so that the gage indicates 1 psi 7 kPa pressure Note 10 Transfer the soil water slurry from the beaker to the air jet dispersion cup by washing with distilled or demineralized water Add distilled or demineralized water if necessary so that the total volume in the cup is 250 mL but no more Note 10 initial air pressure of 1 psi is required to prevent the soil water mixture from entering the air jet chamber when the mixture is 2422 63 2002 transferred to the dispersion cup 9 5 Place the cover cap on the cup and open the air control valve until the gage pressure is 20 psi 140 kPa Disperse the soil according to the following schedule Plasticity Index Dispersion Period min Under 5 5 6 to 20 10 Over 20 15 Soils containing large percentages of mica need be dispersed for only 1 min After the dispersion period reduce the gage pressur
42. Plan Revision Date 2007 Original Date 2002 Revision Na 4 unknown is compared to the response of the standard Laboratory sample A sample intended for testing or analysis prepared from a gross sample or otherwise obtained The laboratory sample must retain the composition of the gross sample Often reduction in particle size is necessary in the course of reducing the quantity Limit of Quantitation LOQ The lower limit of concentration or amount of substance that must be present before a method is considered to provide quantitative results By convention LOQ 1050 where Sp is the estimate of the standard deviation at the lowest level of measurement Matrix Spike A known concentration of standard is added to a sample of known quantity and analyzed The purpose is to determine whether the sample matrix contributes bias to the results Matrix Spike Duplicate A second matrix spike analyzed on between the two results is calculated to measure precision Method An assemblage of measurement techniques and the order in which they are used Method Blank An aliquot of reagent water is treated exactly as the sample and analyzed the results must fall below the MDL Performance Audit A process to evaluate the proficiency of an analyst or laboratory by evaluation of the results obtained on a known test material Precision The degree of mutual agreement characteristic of independent measurements as the result of
43. Revision No 4 APPENDIX F CORRECTIVE ACTION REPORT 67 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 NONCONFORMANCE CORRECTIVE ACTION REPORT QC Batch ID Today s Date Analysis Date Originator Affected Sample Test Method Sample Analysis External Origin Duplicate Precision Client Issue Request Holding Time Expiration Agency Requirement LCS Recovery PE Results Blank Contamination Other Calibration SOP Method Deviation MS MSD Recovery Other Y N Comment on report YIN Contact client Y N Relssue report Problem Preventative Action Responsible Individual sign date QA sign date Report Comments Please circle letter for all that apply B Blank Contamination Analyte detected above the method reporting limit In an associated blank Sample J Analyte HT Sample held beyond the accepted holding time Sample Analyte Reported value Is estimated The sample matrix interfered with the analysis Sample Analyte There was insufficient sample available to perform a spike and or duplicate on this analytical batch Sample Analyte NC Not catculated due to matrix interference Sample Analyte Q Reported value Is estimated Tha value failed to mest QC criteria for either precision or accuracy Sample Analyte SA Reported value was calculated using the method of Standard Additions Sample 1 Analyte 68 W
44. Solids necessary Settleable Solids O amp G COD Lab Control samples 20 Reprep batch and reanalyze Duplicates 25 RPD Reprep batch and reanalyze WETLAB Quality Assurance Plan Revision Date 2007 Original Date May 2002 Ravision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROL ACCEPTANCE CORRECTIVE ITEM CRITERIA ACTION Alkalinity Method Blank lt Report limit Determine cause Fluoride of blank problem Turbidity Reanalyze set if necessary Lab Control 10 Reprep batch and samples reanalyze Duplicates 20 RPD Reprep batch and reanalyze 4500H B 9045 3 Buffers Within 0 05 pH Recalibrate unit of true value Lab 0 1 pH unit Recalibrate and sample reanalyze Duplicate 0 1 pH unit 1 per 20 or per Conductivity Reanalyze flag data if still outside limits Reanalyze batch Reanalyze flag data is still outside limits batch whichever is greater Lab Control 20 Samples Duplicates 15 RPD 63 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Dale May 2002 Revision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROLITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION Coliform Bacteria Method Blank No growth Determine cause of blank problem Reanalyze set if necessary Control Organism Pseudomonas Check aeruginosa 0 Q
45. TIME 28 days PRESERVATIVE HCI to pH lt 2 chill to 4 C CONTAINER Glass only INTERFERENCES 5 1 5 2 Solvents reagents glassware and other sample processing hardware may yield artifacts that affect results Specific selection of reagents and purification of solvents may be required Interferences extracted from samples will vary considerably from source to source depending upon the diversity of the site being sampled For those instances in which samples are thought to consist of complex matrices containing substances such as particulates or detergents that may interfere with the extraction procedure a smaller sample may need to be collected for analysis APPARATUS AND EQUIPMENT 6 1 Vacuum pump 6 2 Filtration apparatus SPE manifold Accuprep 7000 6 3 SPE disks NuePhase or equivalent 6 4 Glass screw top collection vials 6 5 Dessicator 6 6 Laboratory balance 6 7 1000mL graduated cylinder 6 8 Pre weighed aluminum evaporating tins Dry tins at 105 C and store in a dessicator until use 6 9 Sodium Sulfate drying cartridges REAGENTS 7 1 n Hexane 85 purity 99 0 min saturated C6 isomers residue lt 1 mg L 7 2 Acetone ACS reagent 7 3 N Hexadacane Stearic Acid standard 2 mg mL each purchased commercially from CPI Intl or equivalent vendor source 7 4 Methanol 85 purity 8 1 8 2 METHOD OIL AND GREASE Assemble SPE manifold with filter disks ripple or fuzzy side up Extraction Disk Co
46. Training and Certification Laboratory Facilities instrument Calibration Verification and Maintenance Reagent Standard and Procurement Control Test Methods and Standard Operating Procedures sample Management Data Handling Reporting and Record Keeping 10 Records 11 Statistical Quality Control 12 Laboratory Health and Safety and Waste Management pn Mu Dm Within the first 30 days of employment all new staff is oriented as to the basic elements of the QA Program QA Program orientation is documented and records are maintained by the QA Department As part of the basic orientation new personnel are required to read and understand the QA QC Plan It is also a requisite for all staff to read any new revision of the Pian to keep current with the QA Program Orientation as to specific requirements of each department is the responsibility of the department supervisory staff during training of new personnel The personnel certification procedure describes the specific requirements for obtaining maintaining and documenting certification of staff Analysts are assigned analytical duties commensurate with their education experience and training Only those personnel experienced in the use of analytical instrumentation are permitted to operate the equipment A person with the necessary expertise must supervise inexperienced personnel until the former have attained proficiency in the use of a particular piece of equipment Following an initi
47. a number of water samples at different stages of Sediment Surface the SWT inundation hydrograph Figure 2 13 provides a general Not To Scale schematic illustrating the sample collection approach Sample collection is standardized based on relative SWT stage and the event volume during collection can be estimated using the surface water budgets for each SWT Prior to installation the elevations of all SWT outlet features were determined using topographic survey techniques Passive samplers are installed at both the inlet and outlet to capture each of the following elevations 1 at grade with the base of the SWT 2 at the elevation of the treatment outlet 3 halfway between the treatment and bypass outlet elevations and 4 at the bypass outlet elevation In some instances the number of passive samplers may be less if elevation differences between the treatment and bypass outlet elevations are relatively small Figures 2 14A E illustrates the relative elevations and locations of the passive samplers specific to each of the 5 SWTs currently instrumented for passive water sample collection Field personnel will periodically collect grab samples from the SWT treatment outlet when outflow occurs noting the date and time of sample collection see Field Protocol These water quality results will be compared to the passive sampler results to address any bias introduced by the passive sampler monitoring technique Passive samplers coll
48. and is required immediately Our retrieval policy has been instituted to facilitate this process and to provide compensation for laboratory personnel removed from their current workload A request by the client for retrieval of past data is charged at a rate commensurate with the age of the report For data older than two years the retrieval is charged at the current secretarial rate per hour This rate is applied from the time physical removal from storage begins until the complete package is assembled and ready for pickup or delivery Should an analyst or group leader become involved in a retrieval project the charges increase to the billable chemist rate per hour The client is invoiced for all charges incurred with the data package 10 0 RECORDS Quality Assurance records are documents generated in support of quality related activities All original issues of controlled documents such as standard operating procedures and Quality 29 WETLAB Quality Assurance Pian Revision Data Apr 2007 Original Date May 2002 Revision No 4 Assurance manuals are lifetime records and are archived indefinitely Completed analytical records documented on controlled forms are non permanent and are archived for a minimum of five years prior to disposal The documents as well as data packages are organized by the appropriate department in uniquely numbered file boxes The distribution of controlled documents is monitored internally to the affected staff a
49. be discussed in the report cover letter or case narrative Examples of data qualifiers that may be used are shown below B Blank contamination Analyte detected above the method reporting limit in an associated method blank HT Sample heid beyond accepted holding time M Reported value is estimated the sample matrix interfered with the analysis N There was insufficient sample available to perform a spike and or duplicate on this analytical batch NC Not calculated due to matrix interference Q Reported value is estimated the value failed to meet QC criteria for either precision or accuracy SA Reported value was calculated using the method of standard additions SAMPLE MANAGEMENT 8 1 sample Receiving Appropriate measures are taken in the handling storage and shipping of samples and other chemical material to assure compliance with all regulatory requirements Samples for analysis may be delivered by the client picked up by a WETLAB employee or shipped to the laboratory in coolers with appropriate coolant via a commercial carrier such as UPS Federal Express or California Overnight If a common carrier is used the way bill number and the shipping documents will become part of the permanent project file Appropriate safety precautions are taken in the laboratory with samples which are classified as hazardous due to a variety of circumstances and or contaminants For samples of known hazard bottles are labeled identifying
50. busy road cars passed every 1 2 minutes li Moderate Busy road cars passed every 4 5 minutes ii Low Quiet road cars passed every 5 10 minutes 4 Record road shoulder observations for both left and right road shoulders a Record presence absence of road shoulder protection and type of protection Road shoulder protection includes any structural improvements made to minimize human and or automobile disturbance of native soils and subsequent erosion along the side of the road Types include e Boulders e Fencing e Paving e Slope dropoff e Slope hill b Record presence absence of road shoulder stabilization and type of stabilization Road shoulder stabilization includes any improvements made to minimize erosion on road shoulder within dominant flow path along road shoulder Types include e AC Dike e Curb and Gutter e Rock lined Channel c Record degree high moderate low of erosion in road shoulder flow path and average depth ft of channel i Degree of erosion 1 High Deep channel gt 6 and or active signs of erosion gullying bank cuts etc 2 Moderate Shallow channel lt 6 and few signs of active erosion 3 Low No channel development and no signs of erosion ii Use stadia rod to determine average channel depth of road shoulder flow path Road Condition Visual Observations Note Road condition observations and assessment is performed during every road segment visit 1 Identify side code Verify road
51. by verifying the effectiveness of the implemented corrective action Additionally all laboratory notebooks are routinely reviewed by the analyst and a second reviewer to assure correctness of sample and QC calculations All active laboratory data books and QC files are subject to periodic audits surveillances by QA personnel and or Supervisors 10 2 3 2 2 3 3 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 Raw data evaluations will be based on the following completed information as applicable Parameter and method Instrument ID and settings Date and initials of analyst Valid standard curve Frequency of QC QC calculations and recoveries Sample calculations Neatness and ease of data interpretation Reviewed data will be documented as reviewed by and signed initials and dated by the reviewer An effective Quality program provides rapid and thorough correction of QC problems Corrective Actions minimize the questionability of the data External Audits When the results from an external on site audit or performance evaluation study are received by the QA Department a summary of the results will be distributed to appropriate laboratory personnel i e the Lab Director and Group Leader s If deficiencies exist the Lab Director or Group Leader will issue a response addressing the findings and resultant steps to correct the deficiency Upon receipt of all correct
52. can be ruined We have set up our system with a backup compressor on line set to come on when the pressure drops below a predesignated pressure level EQUIPMENT MAINTENANCE AND CALIBRATION Equipment maintenance and calibration are an integral part of the testing process at CTL All applicable equipment scales load cells LVDTs etc is calibrated at least once every year by a senior CTL technician An independent calibration company with equipment traceable to NBS standards calibrates our calibration equipment annually Each piece of equipment is inspected when it is used for testing All testing equipment and instrumentation at CTL are regularly checked for signs of damage wear or being out of calibration Part of the job at CTL 15 to check the instrument each time it is used If the equipment is found to need service it 1s tagged out of service and reported to the laboratory manager The laboratory manager will assure the prompt repair of the equipment It is then recalibrated before being put back in service All equipment manuals schematics and calibration reports are maintained in the laboratory manager s files SELECTED LIST OF PROJECTS The following is a partial list of projects for which we have provided geotechnical laboratory services Dams Uvas Dam Calaveras Dam Bear Gulch Dam Mt Spring Reservoir Landfills Altamont Alameda County Scotia Scotia Casper Mendocino Fairhaven Fairhaven Tunnels Caldecott Tunn
53. conducted in accordance with the specifications of the American Society for Testing Materials ASTM U S Army Corps of Engineers Caltrans and other pertinent entities QUALITY CONTROL Quality control is of the utmost importance at CTL The laboratory managers continually monitor testing activities in the lab in order to assure that testing 1s proceeding in accordance with the appropriate standards Any discrepancies are reviewed and the test is rerun if appropriate A laboratory manager reviews all test results before they are released to the client If test result accuracy is suspect the entire test 1 reviewed and rerun if appropriate GEOTECHNICAL TESTING EXPERIENCE The staff at CTL has over 100 combined years of experience in the lab and in the field doing geotechnical testing All testing is performed by or under the direct supervision of an experienced geotechnical laboratory technician OUTSIDE AUDITS It is the policy of CTL to participate in testing audit activity 1 e Caltrans Reference Sample Program AASHTO Materials Reference Program etc Programs such as these allow us to see how our results compare with those from labs around the state and around the country SAMPLE CUSTODY PROCEDURES Samples are logged in on arrival At that time they are assigned a job number and start date and are cross checked with the request sheet or chain of custody to make sure all the samples are accounted for They are then inspected for
54. criteria as required 11 1Precision Precision and accuracy are determined from the results of the routine batch quality control QC samples The samples are duplicates or matrix spike duplicates and matrix spikes Precision is defined as the measure of the mutual agreement among_ individual measurements of the same chemical constituent in a sample duplicates secured under the same analytical protocols Laboratory precision will be expressed as relative percent difference RPD of the duplicate sample values 4 B 2 RPD A B x First sample value of duplicate analysis b Second sample value of duplicate analysis The acceptance limits are set based on the nature of the material being analyzed sample or standard and are found in each SOP Samples that fall outside the respective limits are reanalyzed at the advisement of the section supervisor and QA Manger Accuracy Accuracy is defined as the degree of agreement of a measured value with the true value of the quantity of concern Accuracy will be measured as percent recovery for lab control samples or matrix spikes as the primary criteria and percent recovery of the surrogate spikes as a secondary QC criteria for applicable analyses Percent Recovery SSR SR 100 SA Where SSR Spike sample result SR Sample result SA Spike added from spiking standard Contro Charts The use of control charts for statistical monitoring provides a visual interp
55. e f an un vented instrument is to be installed access to vented barometric pressure data is required A vented instrument can be set to record on same 15 minute interval and installed on site in the office or at another nearby station One BaroTroll instrument can be used to correct multiple unvented gages The In Situ software can link unvented instrument data and vented data to correct the water depth time series automatically The barometric corrections can also be conducted manually 2A Install un vented pressure transducers a Secure vertical sign post rebar in streambed buried 1 2ft in channel substrate If possible use a sign post already installed for passive samplers Place side braces into the stream bank to further secure housing if necessary b Attach PVC with perforations along bottom 1 2ft to post rebar using radiator clamps Radiator clamps should be spaced evenly along the length of PVC to properly secure it to the post rebar c Install pressure transducer within PVC Attach sufficient length of stainless cable to instrument to ensure placement at the bottom of PVC d Loop cable through PVC cap and lock cap to PVC to prevent theft or vandalism e One vented pressure transducer In Situ BaroTroll will need to be installed somewhere in the project area to record and allow correction for barometric pressure differences It is not necessary to install one at every station One vented transducer can be used for the entire
56. education experience and basic laboratory skills necessary to adequately perform their jobs The Laboratory Director QA Manager is responsible for the health and safety aspects of the laboratory operations including administration of the chemical hygiene and safety plans The Laboratory Director QA Manager has sufficient authority and organizational freedom to identify quality problems to initiate recommend or provide solutions to verify implementation of solutions and if necessary to stop work until the problem is resolved The duties of the Laboratory Director QA Manager include Overall direction and general administration 1 3 WETLAB Quality Assurance Plan Revision Date 2007 Original Date May 2002 Revision No 4 Review of analytical procedures and practices Training and professional development of staff Technical review of proposals bids and quotations Review of reports for compliance with WETLAB quality standards and client requirements Notifying the President of deficiencies in the quality system and monitoring of corrective actions a Monitor external audits write responses and ensure corrective actions e Development of QA procedures instructions and plans Maintain surveillance over all applications of the QA plan make recommendations for resolution of problems or further evaluation by management Initiate formal corrective action s Issue stop work orders for work which is
57. ice and complete chain of custody v Take photos Record staff plate measurement Complete necessary information in station visit monitoring log vi Deliver samples and completed chain of custody to appropriate laboratory within stated holding times Keep a copy of chain of custody for records QNONATURE B ecosystem Fa SCIENCE DESIGN NALGENE STORM WATER SAMPLERS Installation Single Unit Within Flow Path Personnel Needed 1 2 field personnel 4 6 hours to install 3 samplers Equipment Needed assumes use of Nalgene units three 3 Nalgene Storm Water Samplers Cat No 1100 1000 HDPE and or 1120 1000 Glass depending on targeted pollutants of concern three 3 Nalgene Storm Water Mounting Kits includes mounting tube clamp wire hanger cable tie and mounting stake slot headed screwdriver flagging shovel digging bar Nalgene Installation Guide lock Installation Note The most effective installation materials housing and configuration for each station will depend upon site conditions and limitations Trained and experienced field personnel should be used to ensure proper and safe installation of equipment Note The Storm Water Sampler should be used during installation of the Storm Water Mounting Kit to ensure the setup will properly collect a sample To avoid contamination the sampler should not be left on site It should be installed in the mounting tube just prior to an anticipated runoff event 1
58. is taken carefully remove the hydrometer and place it with a spinning motion in a graduate of clean distilled or demineralized water Note 12 is important to remove the hydrometer immediately after each reading Readings shall be taken at the top of the meniscus formed by the suspension around the stem since it is not possible to secure readings at the bottom of the meniscus 10 4 After each reading take the temperature of the suspen sion by inserting the thermometer into the suspension 11 Sieve Analysis 11 1 After taking the final hydrometer reading transfer the suspension to a No 200 75 um sieve and wash with tap water until the wash water is clear Transfer the material on the No 200 sieve to a suitable container dry in an oven at 230 9 F 110 5 C and make a sieve analysis of the portion retained using as many sieves as desired or required for the material or upon the specification of the material under test CALCULATIONS AND REPORT 12 Sieve Analysis Values for the Portion Coarser than the No 10 2 00 mm Sieve 12 1 Calculate the percentage passing the No 10 sieve by dividing the mass passing the No 10 sieve by the mass of soil originally split on the No 10 sieve and multiplying the result by 100 To obtain the mass passing the No 10 sieve subtract the mass retained on the No 10 sieve from the original mass 12 2 To secure the total mass of soil passing the No 4 4 75 mm sieve add to the mass of
59. low e Road segment width 3 Record segment measurements and characteristics a Depending on site safety concerns use visual estimates to determine i Road segment length parallel to flow of traffic in feet Average road segment width perpendicular to flow of traffic in feet Road segment width extends from far left most edge of left road shoulder across drive lane to far right most edge of right road shoulder If road shoulder is not stabilized edge of shoulder is determined by flow path edge of pavement etc Width is verified in the office using GIS tools b Note direction of observations The default is downslope however if that is not readily determined note direction of observations to determine rights and lefts using obvious landmarks other streets the lake etc c Determine road segment slope high low Slope is the longitudinal slope axis parallel with the flow of traffic along the length of the segment Slope is verified in the office using GIS tools i High Greater than 5 ll Low Less than 5 QNONATURE B ecosystem Fa SCIENCE DESIGN d Determine direction right left center crown and degree high moderate low of road segment tilt Tilt is the cross section slope axis perpendicular to the flow of traffic along the width of the segment and describes the routing of stormwater from the drive lane to the road shoulder i Direction is the dominant side to which stormwater flows from the dr
60. material on the bottle prior to the occurrence of a runoff event Connect computer to instruments Verify that both flow meter and automated sampler are working properly Check date time battery level desiccants probe conditions etc Based on anticipated event volume and duration program sampler to collect samples on specific volume intervals As necessary change interval of flow meter data collection Ensure bottles in sampler are clean and empty Verify that sampler is properly connected and will collect runoff from proper location Check intake tubing for kinks and dirt and distributor arm for proper alignment Complete instrument maintenance log Take photos t event Arrive at site within 12 hours after the event has ended Download sample history data i Connect sampler to computer and following instrument manual download the sampling history for the event ii Verify that number of samples collected by sampler match number reported by the instrument Check date and time of each collected sample iv Complete instrument maintenance log Collect samples i Composite samples according to project specifications ii If analyses require chemical preservation transfer sample to appropriate sample analysis bottle ii Complete label for each bottle and firmly secure to bottle Label should include at minimum project and station name date time and field personnel iv Place all bottles in Ziploc in cooler with
61. observations will be recorded entered into Palm Pilots during all sampling and instrument maintenance activities Upon return to the office all data will be QA QC d for accuracy and completeness and then integrated into the MS Access database Instrument downloads will be corrected for barometric pressure as necessary checked for inaccuracies and calibrated to the relevant spot measurements prior to database entry see Protocol C Results of lab analyses will be submitted electronically by the laboratory checked for data quality and completeness verified against the chain of custody record and then entered into the database 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com SAABUS yuIdeqbus Dduus Hus o3equaap 9415553544 ad 510 wunoooTaSdbus wunozdSdbus 551605 Apan qe 16us Aypigun Ipi q6us uu I 1equnp epopaisra jeonAjeuvo3oIm S9JONUUSuu 9 1 uiseg a 915939293 S 1ISO3O NMI 5 uunooorasd6us uunoorasdbus uunorasdbus 551605 Apan Lqe16us Apiqan pje 46us
62. on label Place all bottles in Ziploc in cooler with ice and complete chain of custody Take photos Complete necessary information in station visit monitoring log Deliver samples and completed chain of custody to appropriate laboratory within stated holding times Keep a copy of chain of custody for records pepe Some notes about nutrient sample handling Samples become contaminated if they are touched by skin If you touch the inside of the cap or the rim of the sample bottle please dump the sample rinse the bottle and start over If you sneeze or cough over the sample please dump it Please pay close attention and take care not to compromise sample ONONRTURE m ECOSYSTEM SCIENCE DESIGN SAMPLE BOTTLE LABELING All samples must be clearly and consistently labeled to ensure no data loss due to poor sampling handling All samples collected must be labeled with the following information The same information must be simultaneously entered onto the chain of custody to ensure reliable sample tracking Sample Labeling Example Sample Location A Sample Location Osgood KC3 Sample Type B Sample Type CEC Auto Bottle Composite C Bottle or Rep 1 4 composite Replicate D Replicate none Date E Date 052006 Time collected F Time collected 1402 Field Personnel G Field Personnel MM Example label indicates surface water outflow sample from outlet to Osgood Basin composite from bottles 1 4 from autosampler on
63. or instrument to report or eliminate by adjustment any variation deviation in the accuracy of the item being compared Certification See Accreditation Check Standard A standard originating from a separate source than the calibration standard This standard is analyzed at a minimum of every ten samples The results are generally plotted on a contro chart to evaluate the measurement process Control Chart A graphical plot of test results with respect to time or sequence of measurement together with limits within which they are expected to lie when the system is in a state of statistical control Control Limit The limits shown on a control chart beyond which it is highly improbably that a point could lie while the system remains in a state of statistical control Detection Limit The smallest concentration amount of some component of interest that can be measured by a single measurement with a stated level of confidence Duplicate Sample A second sample randomly selected from a population of interest to assist in the evaluation of sample variance Equipment Blank Reagent water that is used to rinse sampling equipment The results are used to verify the decontamination process between samples Error Difference between the true or expected value and the measured value of a quantity or parameter Internal Standard A standard added to each sample at the sample concentration response of the 37 WETLAB Quality Assurance
64. project area as long as data Is recorded on 15 minute intervals and widely available to all agencies operating instruments To install a programmed In Situ Baro Troll on site e Choose location above the high flow line to ensure instrument cannot be inundated e Bury a 3ft long 8 PVC piece in ground Place BaroTroll in PVC e Lock top in place to prevent theft and or vandalism OR 3B Install vented pressure transducer a Secure vertical steel sign post rebar in streambed buried 1 2ft in channel substrate If possible use a sign post already installed for passive samplers Place side braces into the stream bank to further secure housing if necessary b Attach PVC with perforations along bottom 1 2ft to post rebar using radiator clamps Radiator clamps should be spaced evenly along the length of PVC to properly secure it to the post rebar c Install pressure transducer within PVC Run instrument cable with PC attachment to bank e Ensure vented LevelTroll is purchased with sufficient length of cable to extend instrument to desired location in stream e Special care should be taken to ensure cable does not kink or bend e End of cable should be installed in location above the high flow line to ensure cable top is not inundated d Cable should be locked to prevent theft or vandalism of instrument e No BaroTroll is needed if all Level Trolls used are vented Download Procedure 1 Be sure you have Charged computer
65. proper containment 1 e sample bags are sealed and have no holes shelby tube end caps are taped to prevent moisture loss If there is a chance of significant moisture loss prior to testing samples will be stored in a wet room that is kept at over 90 relative humidity After testing is complete the samples are logged into the sample storage room and assigned a shelf number and date The samples are stored for a minimum of 30 days after the report goes out After 30 days the samples are returned to the sender for proper disposal if they are contaminated or discarded if they are not contaminated DATA FILING SYSTEM Separate files are maintained by client and project All original worksheets purchase orders test requests and or chain of custody documentation are kept in the client project file for a period of 7 years Additional copies of any test results can be provided upon request EQUIPMENT BACKUP SYSTEMS It is the policy at CTL to maintain redundant testing systems wherever possible This redundancy is designed to minimize the impacts on testing of events such as power outages or equipment failure It also allows us to run comparison testing as a check of the proper functioning of our equipment For example the majority of the equipment in the lab is run on compressed air Many of the tests such as permeability and consolidation are long duration tests taking up to two weeks to complete If the compressed air system goes down many tests
66. record files will be retained to allow reconstruction of the data reduction process at a later date if necessary System reviews are performed at all levels The individual analyst constantly reviews the quality of data through calibration checks QC sample results and performance evaluation samples The analyst is provided with set acceptance rejection criteria for the performance of each analytical method A listing of data acceptance criteria and corrective action procedures can be found in Appendix E Data that fails to meet the criteria specified is brought to the attention of the supervisor or Laboratory Director Reanalysis or flagging the data may be necessary If reanalysis is not possible due to insufficient sample or loss of holding time the client is notified If the client elects to have the data reported it will be flagged with a data qualifier that will appear on the final report describing the problem with the quality control These reviews are performed prior to submission to the supervisor laboratory director or another qualified analyst for a second level of review The supervisor and or the Laboratory Director review the data to ensure consistency with laboratory QC requirements to verify reasonableness with other generated data and to determine if program requirements have been satisfied A selected amount of the hard copy output of the data will be reviewed to ensure that results are interpreted correctly The review
67. the condition of a particular Treatment BMP relative to its observed condition at time of installation or immediately following complete maintenance Treatment BMP condition is based on the results of rapid field observations that serve as reliable proxies for the treatment processes relied upon by a distinct BMP Type The treatment processes include infiltration particle capture nutrient cycling and or media filtration The BMP RAM consists of six distinct STEPs implemented by the user each of which required data collection database population and decision making Field personnel will perform the BMP RAM tool regularly on each SWT to document the relative condition The BMP RAM results will begin to inform our understanding of how maintenance urgency may impact CECs and treatment volumes as well as how condition and the associated treatment performance change over time SWT INFILTRATION RATES PLRMv1 requires the user to input the average annual infiltration rate for the specific SWT types that rely upon infiltration to reduce stormwater loads i e dry basin infiltration basin and bed filters The calculation of an average annual infiltration rate for a SWT requires a long term continuous water budget and is difficult to measure instantaneously in the field Per the BMP RAM 2NDNATURE 2009b saturated hydraulic conductivity can be measured during dry conditions using a constant head permeameter CHP However the CHP values are over estimate
68. the material passing the No 10 sieve the mass of the fraction passing the No 4 sieve and retained on the No 10 sieve To secure the total mass of soil passing the in 9 5 mm sieve add to the total mass of soil passing the No 4 sieve the mass of the fraction passing the g in sieve and retained on the No 4 sieve For the remaining sieves continue the calculations in the same manner 12 3 To determine the total percentage passing for each sieve divide the total mass passing see 12 2 by the total mass of sample and multiply the result by 100 13 Hygroscopic Moisture Correction Factor 13 1 The hydroscopic moisture correction factor is the ratio between the mass of the oven dried sample and the air dry mass before drying It is a number less than one except when there is no hygroscopic moisture 14 Percentages of Soil in Suspension 14 1 Calculate the oven dry mass of soil used in the hydrometer analysis by multiplying the air dry mass by the hygroscopic moisture correction factor 14 2 Calculate the mass of a total sample represented by the mass of soil used in the hydrometer test by dividing the oven dry mass used by the percentage passing the No 10 2 00 mm sieve and multiplying the result by 100 This value is the weight W in the equation for percentage remaining in suspension 14 3 The percentage of soil remaining in suspension at the level at which the hydrometer is measuring the density of the suspension may be
69. weighed for weighing the material retained on a No 10 sieve This test method is under the jurisdiction of ASTM Committee D 18 on Soil and Rock and is the direct responsibility of Subcommittee D18 03 on Texture Plasticity and Density Characteristics of Soils Current edition approved Nov 10 2002 Published March 2003Originally published in 1935 Last previous edition approved in 1998 as D 422 63 1998 Annual Book of ASTM Standards Vol 04 08 Annual Book of ASTM Standards Vol 14 02 Annual Book of ASTM Standards Vol 14 03 3 2 Stirring Apparatus Either apparatus A or B may be used 3 2 1 Apparatus A shall consist of a mechanically operated stirring device in which a suitably mounted electric motor turns a vertical shaft at a speed of not less than 10 000 rpm without load The shaft shall be equipped with a replaceable stirring paddle made of metal plastic or hard rubber as shown in Fig 1 The shaft shall be of such length that the stirring paddle will operate not less than 3 4 in 19 0 mm nor more than 12 in 38 1 mm above the bottom of the dispersion cup A special dispersion cup conforming to either of the designs shown in Fig 2 shall be provided to hold the sample while it is being dispersed 3 2 2 Apparatus B shall consist of an air jet dispersion cup Note 3 conforming to the general details shown in Fig 3 Note 4 and Note 5 Note 3 The amount of air required by an air jet dispersion cup is of
70. will be selected and tested to constrain the probable factors contributing to Ksat variability e The total data set 50 total samples will be used to identify the primary factors causing variability in measured Ksat 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan 17 Road Maintenance Practice Documentation Accurate documentation by jurisdictions of road maintenance practices was identified as a significant data gap by 2NDNATURE 2009c The research team has identified road maintenance personnel contacts for 6 of the 7 jurisdictions and provided each with a simple data log to track their road maintenance practices at each of the urban road sampling locations The log includes both road abrasive application data frequency and amount applied per unit area and sweeping data frequency and sweeper type 2NDNATURE personnel plan to communicate biweekly to monthly with the identified personnel at each jurisdiction throughout the winter months to encourage accurate and standardized data collection and management Improved record keeping of road maintenance actions will greatly improve our understanding of the water quality benefits of pollutant recovery actions However identifying the appropriate personnel within each jurisdiction that has 1 the knowledge of existing road maintenance practices and 2 the inclination and time to d
71. 0 mm 3 in 19 0 mm 35 in 9 5 mm No 4 4 75 mm and No 10 sieves or as many as may be needed depending on the sample or upon the specifications for the material under test 6 2 Conduct the sieving operation by means of a lateral and vertical motion of the sieve accompanied by a jarring action in order to keep the sample moving continuously over the surface of the sieve In no case turn or manipulate fragments in the sample through the sieve by hand Continue sieving until not more than 1 mass of the residue on a sieve passes that sieve during 1 min of sieving When mechanical sieving is used test the thoroughness of sieving by using the hand method of sieving as described above 6 3 Determine the mass of each fraction on a balance conforming to the requirements of 3 1 At the end of weighing the sum of the masses retained on all the sieves used should equal closely the original mass of the quantity sieved HYDROMETER AND SIEVE ANALYSIS OF PORTION PASSING THE NO 10 2 00 mm SIEVE 7 Determination of Composite Correction for Hydrometer Reading 7 1 Equations for percentages of soil remaining in suspen sion as given in 14 3 are based on the use of distilled or demineralized water A dispersing agent is used in the water however and the specific gravity of the resulting liquid is appreciably greater than that of distilled or demineralized water 7 1 1 Both soil hydrometers are calibrated at 68 F 20 C and variati
72. 0 series were installed by March 2009 within the inlet and outlet of the Stormfilter Vault to collect flow weighted samples throughout targeted sampling events see Protocol D SWT Condition Assessments BMP RAM Field personnel will conduct condition evaluations for each SWT in accordance with the protocols developed for BMP RAM 2NDNATURE 2009b SWT condition will be evaluated for each relevant treatment process conveyance infiltration particle capture nutrient cycling media filtration associated with the SWT type In order to calculate BMP RAM scores BMP RAM STEP 5 SWT type must be properly identified BMP RAM STEP 2 and benchmark and threshold values BMP RAM STEP 3 must be set for each SWT 2NDNATURE personnel will work with the responsible jurisdictions to properly conduct these steps at each SWT 2NDNATURE will conduct discussions with jurisdictions to perform maintenance at SWT where potentially required This information would greatly improve our ability to evaluate the effects of maintenance on SWT water quality treatment performance 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 38 INFILTRATION RATES PLRM v1 requires the user to input an average annual infiltration rate for each SWT however infiltration rates vary both temporally based on soil saturation conditions and spatially based on frequency of soil
73. 1 0 01369 22 0 01421 0 01397 0 01374 0 01353 23 0 01404 0 01381 0 01358 0 01337 24 0 01388 0 01365 0 01342 0 01321 25 0 01372 0 01349 0 01327 0 01306 26 0 01357 0 01334 0 01312 0 01291 27 0 01342 0 01319 0 01297 0 01277 28 0 01327 0 01304 0 01283 0 01264 29 0 01312 0 01290 0 01269 0 01249 30 0 01298 0 01276 0 01256 0 01236 where K constant depending on the temperature of the suspen sion and the specific gravity of the soil particles Values of K for a range of temperatures and specific gravities are given in Table 3 The value of K does not change for a series of readings constituting a test while values of L and T do vary 15 3 Values of may be computed with sufficient accuracy using an ordinary 10 in slide rule Note 15 The value of L is divided by T using the A and B scales the square root being indicated on the D scale Without ascertaining the value of the square root it may be multiplied by K using either the C or CI scale 16 Sieve Analysis Values for Portion Finer than No 10 2 00 mm Sieve 16 1 Calculation of percentages passing the various sieves used in sieving the portion of the sample from the hydrometer test involves several steps The first step is to calculate the mass of the fraction that would have been retained on the No 10 sieve had it not been removed This mass is equal to the total percentage retained on the No 10 sieve 100 minus total percentage passing times the mass of the total sample rep
74. 3 Nitrate nitrite 2 6 C H2804 pH lt 2 28 days SM4500 4 T 335 2 6 C ascorbic acid if 14 days SM4500 chlorinated NaOH pH gt 12 300 0 Fluoride 300 ml 1 250ml P 28 days 340 SM4500 SM 2330B 500 ml 250ml P SM 9223 Total Coliform 100 ml 100m P sterile 2 6 C 25203 30 hours 525 2 Semi volatiles 2000 ml 2 11 amber 2 6 C Sodium sulfite HCI in 14 30 days field 531 1 8 days 547 4 days 548 1 14 days 549 1 21 days days 551 D DBP 2 40mL G vials 2 6 C Ammonium chloride 4 days pH 4 5 5 992 1 oe 150 ml 1 125 amber 2 6 Ammonium chloride 28 days Notes For holding time 7 30 or X Y means 7 X days for extraction plus 30 Y additional days for analysis P Plastic G Glass AQ aqueous 25203 Sodium thiosulfate H2SO4 Sulfuric acid HCL Hydorchloric acid MCA Monochloroacetic acid 200 8 Lead and 1000 ml 1 1LP None preserved at laboratory Copper with HNOs pH lt 2 1 6 C 30hous 524 2 120ml 2 40mi vials 2 6 C ascorbic acid HCI in 14 days field 504 1 EDB DBCP 2 40ml VOA vials 2 6 C Naz8203 14 days 1000 ml 11L amber G 2 6 C Na28203 7 14 days 515 1 1000 1 1L amber G 2 6 C NazS203 14 28 days 524 2 Volatiles 120 ml 2 40mL VOA 2 6 C ascorbic acid HCI in 14 days vials field 41 WETLAB Quality Assurance Pian Revision Date Apr 2007 Original Date May 2002 Revision Na 4 SAMPLE PRESERVATIVES AND HOLD TIMES I
75. 4 2 The COC will be filled out and signed by the field personnel in order to relinquish every shipment of samples to the respective analytical laboratories 4 3 One copy is made of the COC prior to shipment and is maintained with the field notes The COC makes provision for documenting sample integrity and the identity of any persons involved in sample or sample container transfer Other information entered on the COC includes Project name and number Sample field 1 0 number and number of samples Sampler s recorder s signature Name of person receiving the sample Inclusive dates of possession Date of sample receipt Project amp collection location Date and time of collection Sample type amp preservation information Laboratory name sample number and analyses requested 4 4 The original COC forms are sealed in the shipping cooler If samples are shipped by common carrier the sample custodian is responsible for ensuring the custody is formally transferred PLRM v1 Database Refinement FINAL Phase Monitoring Plan FIELD DATASHEETS Road Condition Evaluation Datasheets Instrument Logs Sigma InSitu Chain of Custody Labels 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com Lake Tahoe PLRM Database Refinement page 1 i May 15 2009 Final Sampling Plan Road Condition Initial Road Segment Characterization Field Datasheet
76. 4 For materials for which compliance with definite specifications is not indicated and when the soil contains Ally D 422 material retained on the No 4 sieve sufficient to require a sieve analysis on that portion the results may be reported as follows Note 17 SIEVE ANALYSIS Sieve Size Ll1 1 llll LL L LL LG 2L No 4 4 75 mm ee 63 2002 No 10 2 00 mm ee No 40 425 um No 200 75 um HYDROMETER ANALYSIS 0 074mm eh See pie hak a te ie Bk 0 001 mm Note 17 No 8 2 36 mm and No 50 300 um sieves may be substituted for No 10 and No 40 sieves 19 Keywords 19 1 grain size hydrometer analysis hygroscopic moisture particle size sieve analysis ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard Users of this standard are expressly advised that determination of the validity of any such patent rights and the risk of infringement of such rights are entirely their own responsibility This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised either reapproved or withdrawn Your comments are invited either for revision of this standard or for additional standards and should be addressed to AST
77. 9 fax 831 421 9023 email info 2ndnaturellc com Road Rapid Assessment Methodology Draft Protocols 1 ROAD RAM STEP 4B FIELD OBSERVATIONS DRAFT FIELD DATASHEET ROAD RAM STEP 4 Field Observation Datasheet RS ID Field Personnel Observation Date Observation Time 1 Road Segment RS Estimated Length ft Primary Flow Path Non Native Handful or greater of 3 Accumulation material easily obtained ow ow _ Beyond Primary Flow Path Impervious ee 2 Non Native Handful or greater of Surface NUN P Accumulation material obtained Percent Distribution Material Accumulation Area Segment Dry Material Collection MATERIAL ACCUMUNCATION AREA 1 Volume ml Dust Test Finger print Heigh Ns eight MATERIAL ACCUMUNCATION AREA 2 Volume ml Dust Test Print ana Height MATERIAL ACCUMUNCATION AREA 3 Volume ml Dust Test Finger Print as Height Yes 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com SIGMA AUTOMATED SAMPLER AND FLOW METER INSTRUMENT CHECKLIST PLEASE FILL OUT EVERY TIME INSTRUMENT IS SERVICED DOWNLOADED CHECKED ETC Settings Samples Collected Notes TD 2 ss Xu c Vol per Interval Sample per Bottle Interval Sample Event Trigger Sent to Lab individ or composited itBottles File Downloaded c c o o
78. For example 4 365 when rounded to three significant figures becomes 4 36 The number 4 355 would also round to the same value 4 36 if rounded to three significant figures Linear Regression Conversion of raw data into analytical results can be achieved by a variety of methods One of the more common means is linear regression also known as the method of least squares the process of forecasting future performance or relations based on past performance or relations WETLAB incorporates this method in the majority of its data conversion processes The execution of a linear regression calculation is normally performed using a scientific calculator preprogrammed for this function In linear regression data are usually expressed as pairs of variables that can be plotted on a graph The points are usually labeled as x and The objective is to determine the value of based on the known value of x If sufficient points are available and the functional relationship between the two variables is well defined a smooth curve can be drawn through the points If the function is not well 33 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Dale 2002 Revision No 4 defined linear regression will affix a straight line to the pattern The correlation coefficient should be calculated for each linear regression line An acceptable coefficient should be gt 0 995 A coefficient lt 0 995 requires re evaluation or re
79. G2 None None 6 months 6 250 mL G jar months 906 0 Tritium Ha P Plastic G Glass AQ aqueous 44 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Dale May 2002 Revision No 4 Appendix C Site Specific Information WETLAB Western Environmental Testing Laboratory QUALITY ASSURANCE PLAN This document contains information specific to the WETLAB facility and is organized in the following format 5 0 WETLAB Standard Operating Procedures 6 0 Facility Floor Plan 7 0 Instrumentation List 8 0 List of Certifications 9 0 Performance Evaluation Studies 45 METALS SOP NO 7 03 1 04 7 07 7 08 7 09 7 10 7 11 7 12 7 13 7 14 GENERAL CHEMISTRY SOP NO 8 01 8 02 8 03 8 04 REV NO REV 2 REV 6 REV 2 REV 2 REV 2 REV 2 REV 1 REV 4 REV 1 REV 1 REV NO REV 4 REV 2 REV 1 REV 4 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision Na 4 Western Environmental Testing Lab DATE 01 07 04 1 27 06 01 07 04 01 07 04 01 07 04 01 07 04 05 13 02 01 27 06 05 13 02 01 27 06 DATE 04 23 07 11 03 03 05 14 02 04 18 07 LIST OF STANDARD OPERATING PROCEDURES TITLE INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY BY EPA 6010B INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY BY EPA 200 7 MERCURY DETERMINATION BY EPA
80. IPMENT CLEANING PROCEDURE FOR ELDORADO COUNTY 11 05 0 01 23 06 ABBREVIATED CLEANING PROCEDURE FOR COMPOSITE SAMPLING EQUIPMENT USED FOR CALTRANS 49 6 0 WETLAB FACILITY WETEAB Quality Assurance Plan Ravislon Dale Apr 2007 Original Date 2002 Revision Na 4 The WETLAB facility located at 475 E Greg St Sparks Nevada is a 7 500 square foot building with individual laboratories for analyses in metals and wet chemistry A floor plan is shown in the following figure 50 FIGURE 3 1 WETLAB FACILITY FLOOR PLAN 1 Floor SHOOSHHSYM OFFICE 1 pez CONFERENCE RECEPTION AREA e 4 v o R A s FUTURE LABORATORY SPACE DOCUMENT STORAGE OPEN TO 1 FLOOR OPEN TO 1 k FLOOR E z 1 Bien jo or f L WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 WETLAB Quality Assurance Plan Revision Bate Apr 2007 Original Data May 2002 Revision No 4 TABLE 4 1 WETLAB INSTRUMENTATION LIST Analytical Equipment Miscellaneous wet chemistry glassware block digesters balances ovens Dionex DX120 lon Chromatograph Perkin Elmer UV VIS Lambda 2 Spectrophotometer Lachat Quickchem 8000 Flow Injection Analyzer Hach 2100 Turbidimeter Midivap Cyanide Distillation Unit Oil amp Grease Solid Phase Extraction System WESTCO Ammonia Dis
81. LAB Apr 2007 May 2002 Quality Assurance Pian Revision No loyment at lly reporting data values that are not the actual days and times of analyses that are not the actual Revision Date Original Date th their emp ther individual s work as ion wi They are also required to inform WETLAB of any fied data by themselves or other employees ing ano Chart iona izat ired to understand the high standards of integrity lly represent iona intent reporting of fals ing is requ tentiona in lly report and WETLAB Organ Ismissa 1 1 rformed and the data reported in connect The employee ies pe intent 1 tentiona ion d in FIGURE 1 tat the dut They understand that lied in WETLAB idental or ing orien acci WETLAB utilizes a clearly stated ethics policy which is discussed with all new employees dates and times of analyses their own will be cause for d values obtaine dur imp s vanmavz lws vk gt gt v avit CINCO CEST eter ert Amity gt TEMA LU IU cence auro Etam re Shee ork 15452 Pit 1 E mI 12739 5254212325 eU e ES inufunntine IBID ernis Sade it het dicis rat e Avira fhig
82. LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 40 CHAPTER THREE SAMPLE DELIVERY AND ANALYSES WATER QUALITY SAMPLES All samples collected in the field will be submitted to WETLab for TSS mg L and Particle Size Distribution PSD by mass for the following particle sizes lt 1um 10 um 16 um 20 um 63 um 100 um and 1000 analysis As resources allow samples will be submitted for SRP mg L as well TSS and SRP analyses are performed by WETLab see Appendix B for WETLab standard operating procedures PSD analysis is subcontracted to Desert Research Institute DRI and conducted using the laser optical backscatter Saturn Digisizer 5200 Thus DRI researchers will have access to all stormwater samples collected for this research effort Coordination and data sharing of necessary sample information will be provided to the DRI researchers if they choose to conduct any additional particle count analysis of any of the stormwater samples provided All samples will be properly labeled see Protocol F and submitted with the proper chain of custody forms see Protocol G to WETLab by field personnel within the proper holding times Table 3 1 Field quality control samples will include field blanks and composite replicate samples described above Lab quality control samples will include method blanks matrix spikes laborato
83. M International Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee which you may attend If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards at the address shown below This standard is copyrighted by ASTM International 100 Barr Harbor Drive PO Box C700 West Conshohocken PA 19428 2959 United States Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at 610 832 9585 phone 610 832 9555 fax or service astm org e mail or through the ASTM website www astm org
84. M algorithms and assumptions as appropriate Table 1 1 Phase Il Monitoring Project Schedule Task End Revise and update Phase I Monitoring Plan Complete 1 Conduct and summarize PAC meeting Complete Revise and finalize Phase Il Monitoring Plan July 10 Instrument stations Complete Maintain stations over course of project Jun 11 3 Draft Technical Report 4 Present Technical Report to PAC Produce Final Technical Report 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 2 The 2NDNATURE Team conducted some of the monitoring and site instrumentation for this SNPLMA research the Fall 2009 and Winter 2010 prior to the release of this Final Monitoring Plan The research team decided this action was warranted due to the urgency to ensure collection of Winter 2010 data and the identified cost effectiveness to complete and release the draft of ACOE funded Phase data analysis 2NDNATURE 2009c and technical report prior to finalizing the continued SNPLMA research approach and associated protocols BACKGROUND Northwest Hydraulic Consultants nhc 2NDNATURE and Geosyntec Consultants nhc et al 2009a 2009b released the initial version of the Pollutant Load Reduction Model PLRM v1 in October 2009 through grants provided by the US Army Corps of Engineers ACOE and the Nevada Division of Environmental Pr
85. May 20 2006 at 14 02 by field personnel with initials MM No field replicate was submitted A Sample location see Figures 1 3 and 4 for location and IDs PA1 IN Park Avenue Upper Basin Inflow PA1 OUT Park Avenue Upper Basin Outflow PA2 IN Park Avenue Lower Basin Inflow PA2 OUT Park Avenue Lower Basin Outflow KC2 Osgood Basin Inflow KC3 Osgood Basin Outflow SF_IN StormFilter Vault Inflow SF_OUT StormFilter Vault Outflow RSID Road Segment ID PS CRC Passive Sampler B Sample Type CEC Auto SWT autosampler CEC Pass SWT passive sampler CRC Road segment grab sample C Bottle Composite CEC Auto Autosampler bottle s CEC Pass Passive sampler bottle 1 4 1 is lowest elevation 4 is highest CRC Time elapsed since flow started ex t 10min If any of the samples are composited write composite or comp on label Replicate number if field replicate taken at site Date of collection Time of collection if collected from passive sampler enter FF first flush Initials of field personnel collecting sample CHAIN OF CUSTODY 1 0 PURPOSE AND SCOPE 1 1 This Standard Operating Procedure SOP describes the procedures to be used for documenting the history and possession of a sample from the time that sample containers are dispatched through its collection analysis and data reporting to its final disposition 2 0 RESPONSIBILITY 2 1 The principal investigator is responsible for ensuring t
86. NORGANICS Waste Water Surface Water Solls 15 Aqueous Method Parameter Amount Container Preservative Hold Time 14 days Ammonia TKN 1 500 ml P 2 6 C H2SO4 pH lt 2 28 days 353 365 total Phosphorus 50 g solid 2 6 C 24 hours 410 s50m 4 500 28 days 300 0 325 375 Chloride Sulfate Bromide Fluoride 50 ml AQ 20 g solid 28 days 340 SM 9221 Coliform fecal 100 ml 125ml P 2 6 C 252 sterile 6 hours O 6 C 8 hours 8 days 335 4500 Cyanide 500mL AQ 1 500 ml P 2 6 C NaOH pH gt 12 14 days amenable 208 125 G 2 6 9010 20g 125 ml G 2 6 C 50g 125 ml G 300 0 Nitrate nitrite 100mL AQ 1 250 ml P 2 6 C 48 hours immediatel Phenol 500mL AQ 2 6 H2SO4 pH 2 9065 100g solid 125 G 2 6 50g solid 125 G 2 6 C 2 6 C 2 6 C 2 6 C 2 6 C J O Sulfide 500 mL AQ 1LP 2 6 C NaOH gt 9 ZnAC days 50g solid 125 ml G 2 6 C 415 1 9060 TOC 100mL AQ 250 ml G amb 2 B C H2504 pH lt 2 2 6 C 28 days 50 Solid 125 ml G ar J 9020 TOX 500mL AQ 1 L G amb 125 2 6 H2SO4 head 28 days 50g Solid mL G jar space 2 6 C 180 1 Turbidit 100 mL 1 500ml P 48 hours P Plastic G Glass AQ aqueous WETLAB Quality Assurance Plan Revision Date Apr 2007 Originat Date May 2002 Revision No 4 TABLE 1 SAMPLE PRESERVATIVES AND HOLD TIMES METALS Method ___ Parameter Amount
87. Observations See Protocol A Visual observations will be made of the entire 10 000 road segment o percent distribution of each material accumulation category heavy moderate and light o degree of fine material within each accumulation category as determined by fines and dust test o evidence of recent road abrasive application Y N and o evidence of recent sweeping activity Y N e Material accumulation categories will be characterized relative to the specific road segment evaluated and not relative to all road segments during the sampling period The heavy and light accumulation categories of the specific road segment at the time of observation will set the bookend scales of the existing condition for these factors and then 96 distribution of each category will be estimated and confirmed by all field personnel e To properly QA QC the data the field observations will be conducted across the entire width of the road segment including the drive lane both road shoulders and both flow paths that consist of impervious coverage Pervious surfaces that extend beyond the concrete will not be included in the observations but the left and right road shoulder conditions for the complete road segment are documented e account for the potentially mobile unconsolidated material accumulated beyond the impervious edge of the road segment and or beyond the reach of a road sweeper visual observations are conducted to determine if a substantial amoun
88. RANCE GLOSSARY u 36 APPENDIX B CONTAINERS PRESERVATIVES amp HOLDING 40 APPENDIX C FACILITIES AND EQUIPMENT III I LLL 45 APPENDIX D INTERNAL AUDIT 54 APPENDIX E CALIBRATION QUALITY CONTROL CRITERIA 57 APPENDIX F CORRECTIVE ACTION REPORT d 67 WETLAB Quality Assurance Plan Ravision Dale Apr 2007 Original Date May 2002 Revision Na 4 INTRODUCTION Western Environmental Testing Laboratory WETLAB specializes in analytical chemistry and provides a range of services for the environmental industry These services include chemical analysis for microbiology inorganics and metals from sources such as surface water groundwater drinking water wastewater soil sludge vegetation and hazardous wastes The Quality Assurance Plan QAP describes the management policy organizational structure and the specific quality assurance QA requirements for inorganic metal and microbiological analyses performed at WETLAB The management at WETLAB advocates the development and use of the best analytical practices as mandated by each testing situation This QAP adheres to the applicable elements described in ISO IEC Guide 25 1990 General Requirements for the Competence of Calibration and Testing Laboratories and the current revision of the National Environmental Laborato
89. RP as resources allow b Field personnel will collect grab samples from the treatment outlet if outflow is occurring to compare water quality results to passive sample collection and address any bias introduced from the passive sample data collection approach Date and time of sample collection will be compared to the basin stage time series to determine the position on the hydrograph when the sample was collected and the associated outflow volume c Inform our understanding of the SWT water quality performance with respect to key fundamental design parameters for each SWT including infiltration rates water quality volume bypass volume draw down time and hydraulic residence times and how these parameters relate to catchment size land use distribution and land use condition d Outlet water quality data that represents the treated volume fraction of the SWT will be evaluated to directly inform PLRMv1 CEC estimates by SWT type and design parameters 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 20 3 Evaluate SWT condition using BMP RAM to a Inform our understanding of how maintenance urgency may impact CECs and treatment volumes as well as how condition and the associated treatment performance changes over time SELECTED SWT SITES Four Lake Tahoe SWTs were monitored during the Winter 2009 2NDNATURE 2009b Osg
90. RS AND AUTOMATED SAMPLERS Installation Personnel Needed 1 2 field personnel 20 hours to install equipment Equipment Needed e Sigma 950 Flow Meter including submerged area velocity sensor sensor cable power cable computer cable battery pack e optional flow meter mounting kits wall mounting suspension harness or manhole rung hanger Sigma 900 Max Portable Sampler including pump tubing intake line tubing connectors intake Strainer bottles battery pack 36 CMP housing lock drill computer instrument maintenance log Instrument Installation Note The most effective installation materials housing and configuration for each station will depend upon site conditions and limitations Trained and experienced field personnel should be used to ensure proper and safe installation of expensive equipment in stream 1 Install sampler per instructions provided in instrument manual a b f Install 36 CMP housing on level ground above and adjacent to sampling source Choose location where inside of CMP housing will remain dry Connect pump tube to body Consider the following issues when installing the intake tube e Tube should be as short in length as possible and free of kinks e Tube should slope downward from sampler to allow complete drainage between sampling e Tube should be placed in area of well mixed flow e Tube should be well placed vertically in water column to ensure sample collected is re
91. RTIFICATION All personnel meet the educational standard as determined by their job duties Personnel selected for performing laboratory activities shall have the experience or training commensurate with the scope complexity or special nature of the activities All new WETLAB personne must read the current QA documents and any subsequent revisions Orientation as to the specifics of the QA program at WETLAB is conducted and documented for ail new staff within the first few weeks of employment 3 1 3 2 3 3 3 4 3 5 Administrative Procedures The administrative procedures cover all aspects of sample management operation such as sample receipt login reporting purchasing and client services These procedures are readily available to all staff Laboratory Quality Assurance Plan In order to produce quality data it is essential that each employee be familiar with the quality assurance program A thorough presentation of the program can be found in the Quality Assurance Plan Each laboratory employee is issued a copy of the manual Health and Safety Orientation and Training The health and safety of our employees clients and the public is our greatest concern Each employee must comply with the safety requirements practices and procedures These criteria are drawn from EPA and OSHA requirements Good Laboratory Practices and requirements obtained from experience and mandated by management The Health and Safety manual is des
92. Tahoe CSLT and significant cost sharing opportunities exist to improve data collection and analysis efficiency CSLT agreed to share instrumentation and monitoring resources with the 2NDNATURE research team Osgood Basin currently accepts runoff from the Keller Canyon a natural drainage with sparse residential neighborhoods and densely wooded areas and Bijou Park Creek highly urbanized catchment Watersheds In November 2007 CSLT instrumented 3 locations Keller Canyon drainage outlet KC1 Osgood Basin inlet KC2 or OSGIN Osgood Basin outlet KC3 or OSGOUT with Sigma flow meters and automated samplers Continuous flow cfs measurements are recorded by Sigma 950 data loggers on 10 minute intervals to create annual hydrographs Sigma 900 series automated samplers are equipped with 24 1 liter bottles and are programmed to collect flow weighted samples throughout a storm event CSLT continues to monitor in accordance with the approved monitoring plan CSLT 2007 However in those cases when CSLT would not collect samples from the inlet KC2 or OSGIN and outlet KC3 or OSGOUT of Osgood Basin due to insufficient flow in the Keller Canyon watershed monitoring site KC1 the 2NDNATURE research team bears the costs to monitor and sample the storm event Results from all submitted samples will be shared between the parties 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com qaN9Isaq Lake Ta
93. This is done using narrow range test strips in a portion of that is disposed of after it is checked If the pH does not meet preservation requiremenis it is adjusted as per the method requirement The pH of all volatile samples is taken by the analyst immediately prior to analysis Water samples for cyanide analyses are also checked for residual chlorine prior to analysis by the analyst All exceptions are noted on a Corrective Action Report For samples that require thermal preservation the shipping chest is checked to verify that the sample containers are in adequate contact with wet or blue ice If a sample is received at the laboratory without preservatives the client is notified and a new sample is requested if the client requests that sample is to be analyzed preservatives are added in the prep lab If it is determined by laboratory personnel that the wrong preservative has been added the client should be advised and asked to resample A listing of the sample preservation requirements for each method is in appendix B Holding Times Once a sample has been taken it must reach the laboratory as soon as possible The time lapse between sample acquisition and analysis must not exceed the EPA required holding times for compliance samples Appendix B contains a list of sample preservation and holding time requirements for each method Samples beyond the holding time which are not for compliance use may be analyzed at the discr
94. Y FACILITIES The physical laboratory facility can adversely affect the quality of results unless it complies with minimum requirements set forth by EPA and OSHA or other legal requirements WETLAB s facility was constructed in accordance with local and state building and safety codes All fire extinguishers and hood velocities are monitored to ensure compliance with safety regulations Due to the fast paced growth of environmental chemistry and microbiology our facility plan is evaluated periodically as the demand for analyses increases Appendix G provides more detailed information about the specific laboratory facilities including a floor plan INSTRUMENT CALIBRATION VERIFICATION AND MAINTENANCE 9 1 Instrument Calibration All equipment is maintained in proper working order with a written log for maintenance repair and calibration Service is provided for much of the major instrumentation by the manufacturer and required maintenance is performed at regular intervals Where applicable reference materials certified by NIST including thermometers are used for calibration purposes WETLAB maintains the operating service and calibration manuals 15 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Data 2002 Revision No 4 provided by the manufacturer for all laboratory equipment Maintenance files and service records are maintained for all instruments The laboratory utilizes state of the art instrumentation
95. aboratory logbooks including instrument run logs maintenance logs calibration logs extraction logs and standard preparation logs The logbooks are bound labeled with the logbook number and have each page numbered A record is maintained of all logbooks including the control number date issued date completed Completed logbooks are archived in a central storage location Organic chromatograms and inorganic integrator printouts are maintained in files clearly labeled with the date instrument number and method The complete data folder is submitted with the sample data report forms to the QA Manager or designated technical staff for review After review the data folders are filed by instrument and by date STATISTICAL QUALITY CONTROL WETLAB s overall QA objectives are to meet the analytical needs of the client with respect to accuracy precision completeness representativeness comparability legal defensibility and timeliness EPA precision and accuracy criteria are used as method specific criteria to accept or reject analytical data When these criteria are either not available or not applicable WETLAB will 30 WETLAB Quality Assurance Plan Revision Dale Apr 2007 Original Date 2002 Revision No 4 base the accept reject criteria on the performance of similar methods and the historical performance at WETLAB WETLAB meets the needs of the client for precise accurate data by adhering to these criteria or other appropriate
96. act with bleach in the same way liquids are or placed in the UV sterilization box for a minimum of 10 minutes and then disposed of as an ordinary solid waste 7 0 ANALYTICAL METHODS AND STANDARD OPERATING PROCEDURES 7 1 Analytical Methods Whenever possible the analytical methods used by WETLAB have been approved and published by State or Federal agencies such as the U S Environmental Protection Agency USEPA Department of Energy DOE American Public Health Association American Society for Testing and Materials ASTM or the National Institute for Occupational Safety and Health NIOSH as described in WETLAB s SOPs list of selected but not exhaustive reference documents supported and used by WETLAB is as follows U S Environmental Protection Agency Methods for Chemical Analysis of Water and Wastes EPA 600 4 79 020 Environmental Monitoring and Support Laboratory Cincinnati Ohio revised March 1983 ibid Methods for the Determination of Metals in Environmental Samples Supplement EPA com Environmental Monitoring and Support Laboratory Cincinnati Ohio May 994 ibid Methods for the Determination of Inorganic Substances in Environmental Samples 19 7 2 WETLAB Quality Assurance Flan Revision Dale Apr 2007 Origina Date May 2002 Revision No 4 FPA 600 2 93 100 August 1993 ibid Prescribed Procedures for Measurement of Radioactivity in Drinking Water EPA 600 4 80 032 Envir
97. al training period laboratory personnel are evaluated by a certified analyst on all aspects of their position Each analyst must demonstrate the necessary working knowledge of the technical and theoretical aspects of his specialty and position An individual is authorized to perform only the functions in which they have 2 2 2 3 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date 2002 Revision No 4 demonstrated competence All equipment necessary for conducting laboratory analyses is maintained and calibrated orior to use Trained personnel analyze the samples and data and generate the reporis Within the analysis cycle there are specified inspection points beyond which analysis data do not progress until these data have been reviewed and approved Therefore data are continually checked throughout the analysis and report preparation cycle The QA program functions to ensure that the clients are provided with a product of documented quality The program is scrutinized and modified when necessary to fulfill the requiremenis of the client and to continually improve the program QA Reports io Management For day to day reporting a Corrective Action Report CAR Appendix F is initiated for situations requiring immediate attention Distribution of these documents includes the Laboratory Director and or Group Leaders who must acknowledge approve and sign corrective action s to remedy out of control situations
98. all four sides to create a 1 clean border around the square This will ensure a good seal for the sampler and prevent leaks ii On downslope side extend line 6 on each side This will be the downslope edge of the 1 x1 rainfall area square and where the edge of the collection pan will be taped to the road surface Clean road surface as completely as possible to ensure tape will stick to road Tape is extended 18 20 along downslope edge of sampling area as well as a 3 4 strip along either side to ensure the downslope corners of the sample area are fully protected Depending on road conditions there are 3 strategies to prepare sample location 1 Silicone e Apply silicone 12 15 along center of the downslope swept line as well as 3 4 along sides to protect corners from leaking Silicone is used to create waterproof seal under tape and to fill in any road surface cracks e Place gorilla tape over silica Wipe any excess silica that oozes out from tape edge 2 Propane Torch e n areas where road surface is mostly smooth tape can be used without silicone In these cases use propane torch to heat road surface and tape to mildly melt tape into road Do not use propane torch in combination with silicone as silicone is highly flammable 3 Plumber s Putty e n areas where road surface is moderate in fines and dust plumber s putty can be used in place of silicone road sites high in fines and dust cannot form a solid seal betwee
99. an accurate thermometer Are the water bath temperatures monitored and recorded when in use Are sample containers properly stored and routinely checked for contamination Comments A ITi o lt gt Comments 56 APPENDIX E WETLAS Quality Assurance Plan Ravisian Date Apr 2007 Original Dale May 2002 Revision 4 METHOD SPECIFIC CALIBRATION QC CRITERIA AND CORRECTIVE ACTIONS 57 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 Appendix E Method Specific Calibration and QC Criteria CONTROL ITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION Initial calibration r20 995 Recalibrate 4 std 1 blank Continuing calibration 1 daily 10 Recalibrate or every 10 samples reanalyze previous 20 samples Calibration blank after each Report Limit calibration check and end of run NO3 NO2 initial calibration r20 995 Recalibrate NO2 5 std 1 blank NO3 calc Continuing calibration 1 daily 10 Recalibrate or every 10 samples reanalyze previous 10 samples Reanalyze Matrix Spike per 10 samples 20 QC Check Standard 10 Recalibrate After ICAL Calibration blank after each lt Report Limit Recalibrate and calibration check and end of reanalyze all run samples gt RL 58 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Data 2002 Revision No 4 Appendix E Method Specific Ca
100. analysis of the calibration curve Manual computation of a linear regression equations is rarely required but may be accomplished using any comprehensive statistical reference Method of Standard Addition Occasionally the determination of analytical data becomes a difficult task due to the nature of a sample matrix and its inherent interferences The true concentration of the compounds of interest are masked to a point where an alternate analytical procedure must be employed i e the method of standard addition For example a particular sample is believed to contain about 10 ppm of copper An aliquot of the sample is taken and diluted 10 fold with water This would make the final concentration of copper 1 ppm A second aliquot of the sample is taken and copper standard added so the final diluted sample will contain copper at the unknown level plus 0 5 ppm A third aliquot of the sample is taken and copper standard added so that after dilution the sample will contain the unknown level of copper plus 1 0 ppm The signals from the three samples are now measured under the same conditions A graph is made of the signal obtained versus the concentration of copper added The three points must lie on the same straight line The line is now extended to the left of the signal axis into the region of the negative concentration The concentration of the unknown is read at the point where the calibration line intersects the negative concentration axis Instr
101. ance for the pollutants of concern The approach to SWT monitoring includes 1 Continuously monitor surface water hydrology to develop a detailed surface water budget for at least 95 5 The surface water budget will allow us to a Calculate event inlet treated and bypass volumes which when combined with sample concentrations to calculate event inflow treated and bypass outflow pollutant loads and SWT treatment performance i e load reduction b Inform our understanding of the SWT hydrologic function with respect to key fundamental design parameters for each SWT including infiltration rates water quality volume bypass volume draw down time and hydraulic residence times and how these parameters relate to catchment size land use distribution and land use condition c Where applicable calculate average annual infiltration rates and correlate to manual BMP RAM CHP measurements and inform PLRM v1 user infiltration rate input requirements 2 Collect event based surface water samples at the inlet and outlet of at least 8 SWTs to evaluate treatment performance based on SWT type a Samples are collected from passive samplers installed at fixed basin water surface elevations to characterize both treated and bypass volumes as defined by PLRM nhc et al 2009b Concentrations will be multiplied by event volumes to calculate treated and bypass pollutant loads and evaluate SWT treatment performance particularly with respect to FSP and S
102. and is in close proximity to the basins already instrumented for 2NDNATURE 2009b monitoring see Figure 2 5 The Blue Lakes Basin watershed will be characterized as part of this Monitoring Study and include area land use characterization and impervious The Blue Lakes Basin was constructed in 2005 as part of the Sierra Tract Phase 2 Erosion Control Project The key design parameters of the dry basin will be derived using Sierra Tract Phase 2 construction documents and a reconnaissance survey of the dry basin Eloise Basin Dry Basin Figure 2 10 Eloise Basin monitoring will include surface water hydrology monitoring and SWT condition evaluations Eloise Basin was selected for sampling due to the research team s familiarity with the site existing infrastructure to house instrumentation and the close proximity to 2NDNATURE 2009b monitoring locations see Figure 2 5 Eloise Basin was the monitored from November 2001 to December 2005 as part of two sequential event based and seasonal hydrologic and water quality monitoring studies conducted by 2NDNATURE personnel for Tahoe Regional Planning Agency TRPA and South Tahoe Public Utility District STPUD Flow meters and automated samplers were installed at the inlet and outlet from 2001 to 2003 however backwatering conditions at the inlet made the instrument of limited benefit Pressure transducers were installed intermittently from 2001 through 2005 to develop basin volume time series and de
103. and strategic maintenance of the SWT to maintain the expected pollutant load reductions When combined with continuous runoff hydrology from the PLRM CECs provide a representative estimate of average annual pollutant loading at the outlet of a SWT The ACOE research developed specific data collection and data analysis techniques to test validate and continue to improve PLRM CEC values based on SWT type and key design parameters The SNPLMA resources will be used to continue the implementation of these sampling techniques while expanding the number of SWTs monitored The Road RAM tool is being developed by the 2NDNATURE team funded by the California Tahoe Conservancy and Nevada Department of Environmental Protection with the initial version public release expected in the Fall of 2010 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan 4 The 2NDNATURE Team developed the Best Management Practice Maintenance Rapid Assessment Methodology BMP RAM to assist Lake Tahoe natural resource managers in determining the relative condition of urban stormwater Treatment BMPs 2NDNATURE 2009b The primary purpose of the BMP RAM is to inform the user of the relative urgency of water quality maintenance for Treatment BMPs The BMP RAM provides a practical consistent and reliable field observation and data management tool to track
104. artnerships tahoescience The views in this report are those of the authors and do not nec essary reflect those of the USDA Forest Service Pacific Southwest n h C CNONATURE ECOSYSTEM SCIENCE DESIGN 321 Frederick Street Santa Cruz California 95062 p 831 426 9119 f 831 421 9023 w 2ndnatureinc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan PROTOCOLS Protocol A Road Condition Evaluations Visual Observations and Dry Material Sampling Protocol B Controlled Urban Road Experiments Wet Sediment Sampling Protocol C InSitu Installation and Maintenance Protocol D Sigma Installation Maintenance and Sample Collection Protocol E Passive Sampler Installation Maintenance and Sample Collection Protocol F Sample Labeling Protocol G Chain of Custody 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com Urban Road Condition Evaluations Overview Road condition evaluations include visual assessment and dry material sampling methodologies Below the protocols are provided for all data collection techniques as well as General Safety and Site Set up Protocols Personnel Needed 2 field personnel 30 minutes per road segment for Road Condition Evaluation General Equioment Needed Large Traffic Cones 6 10 Orange Safety Vests Camera Sharpies Field Datasheets Palm Pilots Field Notebooks Field Maps Tahoe Street Map Pens Pencils
105. asin Rocky Point South Basin and Blue Lakes Basin An additional 1 3 flow meters may be available from CSLT If these flow meters are provided selection of the monitoring locations will be determined with input from the TAC The flow meter continuous inflow hydrographs will be used to QA QC the surface water budget calculations and inform our estimates of contributing catchment volumes and treated versus bypassed volumes Event Based Surface Water Sample Collection Passive samplers are the primary sampling technique to sample the influent and effluent water quality of selected SWTs see Table 2 2 PASSIVE STORMWATER SAMPLER Passive samplers are designed as a low cost method to simultaneously collect water samples associated with a specific basin water surface elevation at both the SWT inlet and outlet Bottles can Su Cap Siren Level s en Holes to pom Sampie be installed weeks prior to the targeted sampling events and collect a water sample on the rising limb of the hydrograph standardizing sample collection across all sites without the need for field personnel to be on site during the storm event Passive samplers are self sealing to preserve the sample until field personnel can safely retrieve the sample for laboratory analysis 2 Lter Sample Jar At each selected SWT a number of passive samplers are installed at the inlet and outlet placed vertically at distinct water surface elevations to collect
106. asin Stage Coon LT Summer 2010 Inlet Flow SFIN Stormfilter Vault ya Outlet Flow SFOUT Summer 2010 SWT Stage SF_LT 2 LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 32 Significant cost sharing for this monitoring study has been achieved through collaboration with both CSLT and TRPA To date CSLT has provided 8 In Situ LevelTrolls 1 In Situ BaroTroll 2 Sigma 950 Flow Meters and 2 Sigma Automated Samplers and may be providing an additional 1 3 Sigma Flow Meters and Automated Samplers TRPA has contributed 5 Sigma Flow Meters and 2 Sigma Automated Samplers to the monitoring efforts Site instrumentation will continue through January 2010 as instrumentation becomes available from our partners Wet Basin Dry Basin Monitoring Protocols C E PLRM modeling of Wet and Dry Basins PLRM v1 is designed to assign a static characteristic effluent concentration CEC for each pollutant of concern to the volume of the effluent water from a specific SWT has been treated When the SWT treated flow capacity is exceeded PLRM assumes the excess volume is bypass and the bypass CEC the inflow CEC PLRM v1 requirements for wet and infiltration Rate ccm els dry basins are different yet share similar concepts Draw Down Time for calculating treated and bypass flows The wet PLRM Dry Basin schematic illus
107. ate received and initials of the receiving party are noted on the label prior to storage It is the responsibility of the analyst to note the date opened and his her initials on the label Each standard is logged into the standard logbook for that department A unique WETLAB lot is assigned to each standard prepared This number is also written on the standard container In the case of organic standards which may arrive several vials to a box the date received and initials are marked on the outside of the box As each vial or ampule is used the analyst notes the date opened and initials the vial or ampule label If the entire contents are used the date opened is noted in the organic standards prep log with the lot number and analyst s initials If a vial or ampule is used as a reagent in an organic extraction and is entirely consumed the date opened initials lot number and manufacturer are noted in the extraction log Dilution s made from commercially prepared standards or reagents and solutions prepared 18 6 5 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 from dry chemicals are placed in containers consistent with the type of solution i e organics glass with Teflon lined lid or crimp top inorganics metals white Nalgene or glass bottle with a cap The required label information is as follows Date prepared initials unique standard ID chemical name concentration and expirat
108. ate with Caltrans and the contracted monitoring consultants to determine the applicability of the current monitoring dataset to the analysis of the Phase Il monitoring data Additionally 2NDNATURE field personnel are coordinating with Vail Resorts to obtain permission to monitor the treatment vault located in the Heavenly Ski Resort parking lot Once permission is obtained 2NDNATURE monitoring will include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations SWT INSTRUMENTATION AND SAMPLE COLLECTION APPROACH The instrumentation and sample collection approaches vary by SWT type dry basin wet basin cartridge filter Table 2 2 summarizes the instrumentation for each site Eight SWTs Osgood Basin Park Avenue Upper and Lower Basins Stormfilter Vault Rocky Point South Basin Blue Lakes Basin and 2 as of yet unselected SWTs have been will be instrumented for both detailed hydrologic monitoring and influent effluent sampling Figure 2 5 An additional 3 SWTs Eloise Basin Wildwood North Basin and Coon Basin have been instrumented for surface water hydrology monitoring only The specific instrumentation and sampling approach is discussed below by SWT type In addition to instrumentation at each site a topographic survey is necessary for all sites to obtain critical instrumentation and SWT elevations as well as to create a stage storage rating curve for each SWT where continuous water budg
109. ategory high moderate low as designated in road condition visual observations Road surface integrity high moderate low at sampling location i High Less than 5 of square shows signs of road surface distress ii Moderate 5 25 of square shows signs of road surface distress ii Low More than 25 of square shows signs of road surface distress pocks cracks etc Perform Fines Test i Locate appropriate site within material accumulation area 1 It should not be the same area where dry sample was collected ll Scrape road surface with hard edge sweep using moderate amount of pressure to remove top layer of coarser material from surface ii Wet finger using spray bottle Note Ensure finger is clean prior to performing test iv Using two fingers and with a moderate amount of pressure rub the pad of the fingers back and forth along 6 approximately the length of a hand of the road surface twice e g cover 24 of road surface NONBTURE _ B ecosystem Fa SCIENCE DESIGN h V Vi Look at finger surface Are fingerprints visible through the material on finger Record answer Yes No on field datasheet Wet finger with spray bottle and rub fingers together Do fingers feel slimy or gritty or both or neither Record answer on field datasheet Perform Dust Test Within unswept 1x1 foot square within material accumulation area 1 sweep road surface vigorously 5 sweeps in 3 seconds Within 2 seconds of sweeping es
110. calculated as follows Note 13 For hydrometer 151H 100 000 W x G G G G 1 Note 13 The bracketed portion of the equation for hydrometer 151H is constant for a series of readings and may be calculated first and then multiplied by the portion in the parentheses For hydrometer 152H RalW x 100 2 where correction faction to be applied to the reading of hydrometer 152H Values shown on the scale are computed using a specific gravity of 2 65 Correction factors are given in Table 1 P percentage of soil remaining in suspension at the level at which the hydrometer measures the density of the suspension hydrometer reading with composite correction ap plied Section 7 422 63 2002 W oven dry mass of soil in a total test sample repre TABLE 2 Values of Effective Depth Based on Hydrometer and s Sedimentation Cylinder of Specified Sizes sented by mass of soil dispersed see 14 2 g specific gravity of the soil particles and Myar maer TSM specific gravity of the liquid in which soil particles Actual Effective Actual Effective Actual Effective are suspended Use numerical value of one in both 5 Depth L cm m Depth L cm instances in the equation In the first instance any bl ati d 1 000 16 3 0 16 3 31 11 2 possible variation produces no significant effect an 1 001 160 161 30 11 1 in the second instance the composite correction
111. ck on View and select My Data Right click the recently downloaded file and 0200 Vi select Export to Csv Select the file under the Exported Data File and in the window to the right the location of the file on the C drive will be indicated Check details on Instrument Battery Capacity and Storage Capacity in the upper right corner Record these values in the field log If battery capacity is low the instrument will need to be sent back to In situ b Start new test To start new test old test must be deleted Right click old test and choose Delete This is why it is imperative that you check that gage has downloaded correctly and data is saved Deleting this should also clear out the data storage capacity Right click Tests and choose New Wizard will take you through the set up If you are unsure of any of the settings go to the data file just downloaded Beginning lines give description of setup including mode reference depths and sampling intervals When setting up both Level and BaroTrolls it is best to have them recording at same interval with same start times When finished double check details to make sure test will begin If you chose a manual start do not forget to start test before disconnecting iv Once you ve convinced yourself that recording will happen click on the icon in the right corner to disconnect the instrument and exit Win Situ software SIGMA FLOW METE
112. contracting of Analysis cccssssscssscessscosseccosssesnessscsassssssncaesacecsnossescessces cessanecessercees 27 9 0 DATA HANDLING REPORTING AND RECORD KEEPING cccccccssccsseccescessecocessessceeeees 27 9 1 Laboratory Reporting and Paperflow ccsccscsccsssescessscsesccsecsvenecccvcceacecassesessacseaeeanes 27 9 2 Data Validation Reduction and Reporting esee 28 9 2 1 Electronic Data Deliverables EDD File Verification 29 LA LT Transfer ooo tuebitur ue 29 9 2 1 2 Manual HORE ed 29 e e M EP 29 S Data ROME e EE 29 RECORDS E ELE rA 30 10 1 Laboratory Data Control 30 11 0 STATISTICAL QUALITY CONTROL 31 US eri aati dint ne Un 31 12 AGGN CY EM 31 COMO CAIUS EE 31 11 4 Expression OF Results 32 11 5 oo ua k c ED PIDE AM EE DET 32 En 33 NE 33 11 8 Method of Standard 34 11 9 Development of Detection 34 CONTRAQT EEVIEW unu QQ SS Rua uQ 35 TAATAI tia 36 APPENDIX A QUALITY ASSU
113. ct the invoice is submitted for payment All invoices for each vendor are collected and attached to a voucher apron for approval In the event an invoiced price does not coincide with the quoted price the package is returned to the purchasing agent for reconciliation with the vendor Once the paperwork has been corrected it is again submitted to the payables section for review and payment 6 1 1 Laboratory Reagents and Standards The quality of reagents used depends upon the nature of the analysis Analytical Reagent grade is used when no minimum requirement is stated When necessary 17 6 2 6 3 6 4 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Dale May 2002 Revision Na 4 for a particular procedure a higher grade reagent is obtained High purity acids and or solvents are used for digestions or extractions for trace level analyses Gases utilized for analyses are of several different grades depending on analytical and instrumental requirements The tanks are labeled according to the grade of gas in the cylinder Receiving All materials chemicals instrument and sample shipping and receiving are handled through the shipping and receiving area Non sample materials are distributed from the central storage area to the appropriate departments Organic solvents acids and dry chemicals are marked with the received date Material Safety Data Sheets MSDS that may accompany chemicals or standards are filed in bi
114. d Methodology nhc et al 2009a predicts likely road condition and associated CRCs from urban roadways The SNPLMA monitoring efforts will continue to expand the urban road data collection initiated by the ACOE funded efforts In addition the researchers may apply cost 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan 3 effective sampling techniques to other key urban land use types to improve our understanding of FSP generation and transport on urban lands ROAD RAM The Road Rapid Assessment Methodology Road RAM is a tool that is under development for the Lake Tahoe stormwater community to rapidly evaluate the relative condition of an urban roadway using simple repeatable and cost effective techniques The Road RAM will be complementary and consistent with PLRM terminology road characteristics pollutant source and sink factors and final road condition evaluation scores While PLRM provides likely average annual road condition scores the Road RAM allows discrete temporal and spatial condition evaluations of urban road segments The urban road monitoring efforts conducted during Phase data collection 2NDNATURE 2009c and to be continued under Phase II have been designed to directly inform many aspects of the Road RAM tool as well including road risk development RAM observation protocols and RAM scoring calculations CEC
115. d fitting DO NOT unscrew lid from sampler e Before beginning sample operation for the day check tubing nozzle etc for leaks and adjust as necessary 2 Create a clean environment while sampling We are analyzing samples for sediment and therefore everything must be kept as dirt free as possible a Rinse and dry all equipment between sampling and especially between road segments Ensure sampler water supply squirt bottle graduated cylinder etc are kept dirt free b Always place bottle lids with the bottom down when not being used c Always cap bottles when not being immediately used Even if it is just going to be for a second screw the lid back on the bottle 3 Set up sampler See Figure 2 as reference ONONRTURE a Select location on road surface in area of moderate material accumulation Note that sampler with bottle attached extends approximately 18 downslope Be sure there is enough room for sampler to rest evenly and completely on road surface b In close proximity to selected sampling location but not upslope pour water on road surface to determine direction of runoff c Attach sample bottle to sampler Screw bottle to lid tightly but avoid twisting lid fitting independently of sampler d Prepare sampling location i Place the 1 x1 inside square down in selected sampling location so orientation is perpendicular to the runoff direction Using hand broom and or wire brush sweep
116. dard Deviation The coefficient of variation expressed as a percentage Replicate A counterpart of another usually referring to an analytical sample or measurement for which duplicate is the special case consisting of two samples or measurements sample A portion of a population or lot It may consist of an individual or groups of individuals It may refer to objects materials or measurements conceivable as part of a larger group sensitivity Capability of methodology or instrumentation to discriminate between samples with differing concentrations or containing differing amounts of an analyte Significant Figure A figure s that remains to a number or decimal after the ciphers to the right or left are canceled Standard A substance or material with properties believed to be known with sufficient accuracy to permit its use to evaluate the same property of another In chemical measurements it often describes a solution or substance commonly prepared by the analyst to establish a calibration curve or the analytical response of an instrument Standardization The process whereby the value of a potential standard is fixed by measurement with respect to a standard s of known value Standard Addition A method in which small increments of a substance under measurement are added to a sample under test to establish a response function or to determine by extrapolation the amount of a constituent originally present in the test sample
117. date In addition special analytical problems and or any modifications of referenced methods will be noted Additional information may be included in reports upon request The number of significant figures reported will be consistent with the limits of uncertainty inherent in the analytical method Consequently most analytical results will be reported to no more than two or three significant figures 9 2 1 Electronic Data Deliverables EDD File Verification EDD verification ensures that measures are taken to provide clients with error free electronic data files There are two methods for generating the EDD Both methods required a 2nd person review to verify the EDD is consistent with the raw data and hard copy report 9 2 1 1 Electronic Transfer Transferring information directly from calculation software to electronic data transfer EDT file is ideal due to elimination of transcription errors 9 2 1 2 Manual Transfer Data entered into EDT file manually requires the person to verify that the information was transferred accurately The 2nd person verifying the electronic data file may do so by computer screen or hard copy 9 3 Storage An appropriate data storage facility is essential in maintaining the integrity of data generated for future use Each final report and associated data package are retained within the laboratory for five years 9 4 Data Retrieval The retrieval of previous data is often requested for legal purposes
118. destruction notifications are retained by the Safety Officer or Laboratory Director see the WETLAB Chemical Hygiene Plan and standard operating procedure for sample disposal and waste management 11 02 for details regarding handling and storage of waste products Subcontracting of Analysis 26 9 0 WETLAB Qualily Assurance Plan Revisian Date Apr 2007 Original Date May 2002 Revision No 4 Subcontracting laboratories will be reviewed with an emphasis on their overall quality control practices and compliance with the quality assurance requirements of ISO IEC Guide 25 1990 Any laboratory used for subcontracting shall be approved by the QA Department or Laboratory Director The subcontracting lab should be asked to submit a copy of their Quality Assurance Manual certification list and relevant proficiency study results If testing is subcontracted to another laboratory the client s documented verbal authorization is required prior to shipping DATA HANDLING REPORTING AND RECORD KEEPING The analytical laboratory business is by nature service oriented striving to provide a quality product analytical data on time and at a reasonable cost Important to our business and clients is the systematic approach used in handling the large amount of data that are generated This system must allow for rapid information access and retrieval maintenance and storage 9 1 Laboratory Reporting and Paper Flow An organized system of work
119. ducted by the local and state agencies These studies are procured from a National Institute of Standards and Technology NIST accredited laboratory A list of the current state certifications for the WETLAB facility is given in Appendix Corrective Actions In addition to providing acceptance criteria and specific protocols for corrective actions in the SOPs WETLAB implements general procedures to be followed to determine when departures from documented policies procedures and quality control have occurred These procedures identify 1 Individual s responsible for assessing each QC data type 2 Individual s responsible for initiating and or recommending corrective actions 3 Define how the analyst should treat a data set if the associated QC measurements are unacceptable 4 Specify how out of control situations and subsequent corrective actions are to be documented and 5 Specify procedures for management to review corrective action reports To the extent possible samples shall be reported only if all quality control measures are acceptable If a quality control measure is found to be out of control and the data are to be reported all samples associated with the failed quality control measure shall be reported with data qualifiers as appropriate and notations in the accompanying case narratives 2 4 1 Corrective Actions from Internal Indicators Monitoring systems in the laboratory are designed to help ensure not only that
120. e Golf d e s Course 9 High A Moderate A Low Stateline gt Hs Keller Canyon E KINGSBURY GRADE br i LA AN ut dl Meadow J e c ie fr d L L R ck Rd E m Fun 9 4 s c Men osea T g E uM Sf Chimney NN 5 Y Kingsbury 1 L Paiewood Dr 9 E f 7 ig 18915 nopean HIGH MEADOW Jan z i um E a zi V ke Marshall Trail 1 2NDNATURE LLC TEL 891 426 9119 FAR 8814218028 URBAN ROAD SEGMENTS SOUTH FIGURE 2 3B Wwuww 2ndnaturellc com qaN9lSad qaN9lSad z TAHOE CITY shoe State sel Tahoe City Golf Course GRANLIBAKKEN LEGEND Road Risk of Road Segment High Moderate A A A Low gt 2NDNATURE LLL TEL 831 426 9119 831 421 9023 Wwuww 2ndnaturellc com f WEST SHORE lt 2 Sunnyside 222 Tahoe Pines _ Homewood B Chambers COM Sugar Pine C vo dum x Meeks Bay 89 Cal su SE d Biss State Park URBAN ROAD SEGMENTS WEST SHORE FIGURE 2 3C PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 13 Visual
121. e PLRM v1 assumptions and algorithms particularly with respect to FSP to continue to improve the predictive power of this model LAND USE CRC CHARACTERISTIC RUNOFF CONCENTRATION The PLRM quantifies pollutant generation from an urban land use and associated land use condition Urban land use types include single family residential multi family residential commercial primary roads and secondary roads etc Condition is defined as the existing state of a land use relative to the pollutant generation risk during a subsequent storm and is the integration of physiographic characteristics pollutant source controls and the effectiveness of pollutant recovery efforts A wide range of pollutant source controls are implemented on urban land uses with the intention of improving condition and reducing the pollutant generation risk In the PLRM the condition of an urban land use is correlated to a characteristic runoff concentration CRC for pollutants of concern for lake clarity A CRC is a representative concentration for a pollutant of concern in stormwater runoff from a specific urban land use and its associated condition CRCs are combined with continuous runoff hydrology from the PLRM to provide a representative estimate of average annual pollutant loading for specific land use conditions PLRM v1 assumes that significant pollutant load reduction opportunities exist as a result of improving urban road management to protect water quality The PLRM Roa
122. e can 4 Record data on field datasheet a Sample ID Format is Site Code Location i For example DD LRS is the left road shoulder from Dale Drive b Time of sample collection in 24 hour format Location on road flow path road shoulder drive lane Default is the flow path Results of field turbidity test ntu rp SCIENCE DESIGN IN SITU LEVELTROLL amp BAROTROLL Installation Personnel Needed 1 2 experienced field personnel 2 4 hours per station to install Equipment Needed InSitu LevelTroll BaroTroll as needed digging bar vertical steel sign fence post or rebar side braces Baro Troll housing 3ft long 8 PVC top lock wire cable perforated PVC PVC end cap lock post driver level radiator clamps tools drill Installation Note The most effective installation materials housing and configuration for each station will depend upon site conditions and limitations Trained and experienced field personnel should be used to ensure proper and safe installation of expensive equipment in stream 1 Calibrate and setup instruments In Situ LevelTroll 500 In Situ BaroTroll if necessary in office a Follow software instructions provided in user manuals b Check that date and time are accurate c Setto record data on 15 minute intervals e Water depth as feet Calibrated and corrected for elevation barometric pressure differences e Pressure in psi Calibrated and corrected for elevation
123. e evaluated and documented prior to each controlled experiment The field verification of urban road condition Road RAM and subsequent standardized sampling of the associated road water quality will provide valuable qualitative and quantitative data to inform the PLRM Road Methodology and associated CRCs Figure 2 1 provides a visual orientation to summarize the suite of data collected from urban road segments during monitoring as developed by 2NDNATURE 2009a The field observations and sampling conducted under the SNPLMA Phase II study will improve the correlation between on the ground observations Road RAM and PLRMv1 predictions of likely average annual condition Road Segments and Characterization Consistent with the sites monitored by 2NDNATURE 2009c thirty four 34 road segments including thirty two 32 roads and two 2 commercial parking lots Table 2 1 Figures 2 2 2 3 were selected to represent a range of road type primary secondary road risk high moderate and low and jurisdictions in charge of maintenance The combination of roads selected based on the above characteristics represent a range of road conditions is consistent with the PLRM Road Methodology assumptions Each road segment is standardized to a sampling area of 1 000ft and characterized based on the PLRM Road Methodology nhc et al 2009a The top half of Figure 2 1 presents the spatial distribution of data collected during the road segment characterization
124. e material visual observation protocols ADDITIONAL LAND USE DRY SEDIMENT SAMPLES A fraction of the dry material samples collected from the impervious and pervious land use surfaces are kept and submitted for PSD analysis to refine the visual observation protocols SWT SOIL SAMPLES Soil samples collected from within the SWTs will be submitted for PSD analysis to improve our technical understanding of infiltration volumes CHP measurements and SWT treatment performance over time Table 3 1 Analytical Laboratory Sample Requirements per Analysis Yype perc Analysis Detection Sample Sample Holding Preservation Method Limit Volume s Bottle Time Method Total Suspended 160 2 1 L EN ZEN Saturn Digisizer On ice Distribution PSD lt 600mL HDPE 28 days 5200 4 C Water Samples Soluble Reactive On ice Particle Size Distribution PSD ASTM D 422 63 6 6 um 30mL 50g Ziploc N A N A Soil Samples 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 42 Table 3 2 Type and Frequency of QA QC Samples One per event rotate sampling site CHAPTER FOUR DATA MANAGEMENT All data collected under this Monitoring Plan will be managed in a digital Microsoft MS Access relational database PLRMDatabaseRefinement accdb Figure 4 1 Field site
125. e request form which is then submitted to Client Services where the necessary containers are prepared The quality and type of containers used for sampling can significantly impact the quality of the analytical results Sampling containers are purchased pre cleaned and certified by the manufacturer to ensure there is no induced contamination for metals volatile organics and semivolatile organics testing If a bottle is purchased that is not certified the appropriate laboratory analyses will be performed to ensure cleanliness The size of the sample bottle and the required preservative is mandated by EPA All sample bottles are prepared in the laboratory according to these instructions See Appendix B for listing of containers per analysis type A color coded label indicating the type of analysis is affixed to the bottle and the appropriate volume of preservative is added A Chain of Custody COC form and instruction for sampling are included with the shipment 24 8 5 8 6 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date 2002 Revislon No 4 Clients are responsible for proper sampling field filtration preservation hazardous sample notations temperature control and shipments of samples to WETLAB in a proper manner to meet the required holding times The pH should be tested on a representative preserved sample from each batch received by the lab with the exception of volatile organics and TOX
126. e select samples 8 Record data on field datasheet a Sample ID Format is Site Code_AccumulationCategory amp Replicate Number i For example DD_H1 is the first sample taken in the high material accumulation area from Dale Drive Time of sample collection in 24 hour format Location on road flow path road shoulder drive lane Material accumulation category high moderate low as designated in road condition visual observations Wet samples are usually collected in areas of moderate accumulation Road surface integrity high moderate low at sampling location i High Less than 5 of square shows signs of road surface distress ll Moderate 5 25 of square shows signs of road surface distress ii Low More than 25 of square shows signs of road surface distress pocks cracks etc Amount of fines within sample high moderate low High A significant amount of fines are present in sample When sweeping a lot of dust is generated and may cause field personnel to cough sneeze or blink a lot Moderate Some fines are present in sample When sweeping a little bit of dust is generated into air iii Low Very few fines are present in sample Little to no dust is generated while sweeping the sample Time min of rainfall simulation Average pressure psi during simulation Volume ml applied for sample collection Default is 1000ml 750ml through pump 250 ml in squirt bottle Ir CNDNATURE _ Approxi
127. e to psi preparatory to transfer of soil water slurry to the sedimentation cylinder 10 Hydrometer Test 10 1 Immediately after dispersion transfer the soil water slurry to the glass sedimentation cylinder and add distilled or demineralized water until the total volume is 1000 mL 10 2 Using the palm of the hand over the open end of the cylinder or a rubber stopper in the open end turn the cylinder upside down and back for a period of 1 min to complete the agitation of the slurry Note 11 At the end of 1 min set the cylinder in a convenient location and take hydrometer readings at the following intervals of time measured from the beginning of sedimentation or as many as may be needed depending on the sample or the specification for the material under test 2 5 15 30 60 250 and 1440 min If the controlled water bath is used the sedimentation cylinder should be placed in the bath between the 2 and 5 min readings Note 11 The number of turns during this minute should be approxi mately 60 counting the turn upside down and back as two turns Any soil remaining in the bottom of the cylinder during the first few turns should be loosened by vigorous shaking of the cylinder while it is in the inverted position 10 3 When it is desired to take a hydrometer reading carefully insert the hydrometer about 20 to 25 s before the reading is due to approximately the depth it will have when the reading is taken As soon as the reading
128. ect water at a fixed water surface elevation during the rising limb of the hydrograph The grab sample timing will be compared to the SWT stage time series to determine the hydrograph position These samples will provide a more complete picture of the SWT treated pollutant loads 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com BASIN SWT PASSIVE SAMPLER DESIGN Hanging 2 Passive Sampler stream flow stormwater runoff Coupler e Grate and screen Position of ball after amp PVC sample collected Sample bottle Buoyant ball prior to End cap Ground Surface sample collection Design adapted from Thurston 1999 Passive samplers can be custom fabricated to meet site specific needs but typically are Nalgene Stormwater Samplers Passive samplers can be 1 buried in the flow path to collect sample at grade or 2 secured to vertical sign post to collect a sample at a targeted stage elevation i e hanging Sample is collected when water surface exceeds elevation of top of sampler Sample flows over grate through funnel and into bottle As bottle fills with water during the event the ping pong ball floats to the top and plugs the hole in the lid and seals the sample until it is collected by field personnel
129. ection Factor Vs 67 0 cm 2 2 For hydrometer 151H 280 0 97 L 10 5 a reading of 1 000 2 75 0 98 2 3 for reading of 1 031 2 70 0 99 2 65 1 00 For hydrometer 152 2 60 1 01 L 10 5 cm for a reading of 0 g litre 2 55 1 02 2 3 for a reading of 50 g litre 2 50 1 03 2 45 1 05 For use in equation for percentage of soil remaining in suspension when using Hydrometer 152H D K LIT 4 422 63 2002 TABLE 3 Values of K for Use in Equation for Computing Diameter of Particle in Hydrometer Analysis Temperature Specific Gravity of Soil Particles 2 65 2 70 2 75 2 80 2 85 0 01435 0 01414 0 01394 0 01374 0 01356 0 01417 0 01396 0 01376 0 01356 0 01338 0 01399 0 01378 0 01359 0 01339 0 01321 0 01382 0 01361 0 01342 0 1323 0 01305 0 01365 0 01344 0 01325 0 01307 0 01289 0 01348 0 01328 0 01309 0 01291 0 01273 0 01332 0 01312 0 01294 0 01276 0 01258 0 01317 0 01297 0 01279 0 01261 0 01243 0 01301 0 01282 0 01264 0 01246 0 01229 0 01286 0 01267 0 01249 0 01232 0 01215 0 01272 0 01253 0 01235 0 01218 0 01201 0 01258 0 01239 0 01221 0 01204 0 01188 0 01244 0 01255 0 01208 0 01191 0 01175 0 01230 0 01212 0 01195 0 01178 0 01162 0 01217 0 01199 0 01182 0 01165 0 01149 2 45 2 50 2 55 2 60 16 0 01510 0 01505 0 01481 0 01457 17 0 01511 0 01486 0 01462 0 01439 18 0 01492 0 01467 0 01443 0 01421 19 0 01474 0 01449 0 01425 0 01403 20 0 01456 0 01431 0 01408 0 01386 21 0 01438 0 01414 0 0139
130. edures The procedures are written according to established format guidelines The following outline is observed to incorporate all relevant information in the procedure Scope and Application Summary of Method Safety Sample Handling and Preservation Interferences Apparatus Reagents Procedure Quality Control Calculations Reporting Format References Vo TID NEA uci Appendix contains list of analytical procedures with the associated reference method Analytical Quality Control QC In order to assess the validity of a reported result QC indicators are placed in the measurement system to provide a tool for evaluating how well the method worked There are QC indicators to evaluate the method performance at both the preparation and the measurement steps and QC indicators to evaluate matrix effects Most samples to be analyzed in the laboratory require some pre treatment before a measurement can be made This may include extraction digestion distillation etc During ihe pre treatment step samples are arranged into discreet manageable batches to facilitate and control uniform treatment for all samples Each batch will have a maximum of 20 investigative samples of the same matrix e g soil or water In addition QC indicators such as blanks spikes and duplicates are added to each prep batch to monitor the performance of the system All QC associated with a batch will be carried through the entire ana
131. eio isa ism MR dE 15 9 2 Calibration Verification Te 17 9 3 Instrument Maintenance J 17 6 0 REAGENT STANDARD AND PROCUREMENT CONTR Ola eee 17 6 1 Purchasing Selection of Vendors 17 6 1 1 Laboratory Reagents and Standards 18 said eer mH 18 om EE ei a da le dt le 1 5 N 18 6 4 Chemical and Standard Tracking eese eee 18 9 9 BISBOSBI ossi wordt cmt Lex EE 19 7 0 ANALYTICAL METHODS AND STANDARD OPERATING PROCEDURES 19 7 1 Analytical ees 19 7 2 Standard Operating 20 7 3 Analytical Quality Control J l I lu 21 WETLAB Quality Assurance Plan Revision Dale Apr 2007 Original Date May 2002 Revision No 4 TABLE OF CONTENTS 8 0 SAMPLE MANAGEMENT cccccscccccsscsssssccsscessssesssssecersceserseesceeserseesesusesauserszaececsssanuers 22 S Sample 23 n EOGI x uu uu u E 24 8 3 Sample Management and Tracking eese nennen 24 8 4 Sample Containers and Preservation n 25 sts ae NE u REN 25 8 6 Packing and Shipping 26 8 7 Chain ems 26 Sample Disposal Em 26 8 9 Sub
132. el 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep 1f Date Time Collected Field Personnel 08 570 SNPLMA PLRM SAMPLING Site Location Sample Type Bottle Composite Rep 1f Date Time Collected Field Personnel PLRM v1 Database Refinement FINAL Phase II Monitoring Plan APPENDIX A WETLAB QUALITY ASSURANCE PLAN 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com WETLAB Western Environmental Testing Laboratory QUALITY ASSURANCE PLAN Prepared by Western Environmental Testing Laboratory 475 E Greg Street 119 Sparks NV 89431 Foruse by Wester
133. el Polhemus Tunnel Nuclear Power Plants Diablo Canyon Other Geotechnical Projects Modesto Reservoir Outlet Works Gilroy Morgan Hill Wastewater Treatment Facility Danville Reservoir Leland Reservoir Willow Lake Dam Vikery Reservoir Eastlake Clear Lake Maui Confidential Hillside Colma Sacramento Landfill King City Landfill Lenihan Dam Humbolt Los Vaqueros Water Conveyance Project Travis AFB Black Butte Hydroelectric Project Sunset Reservoir Tongue River Dam Lenihan Dam Sunnyvale Landfill Koppers Oroville Superfund Mesquite Landfill Crystal Springs Lake Tap Shaft Tunnel amp Pipeline Stanford Linear Accelerator Altamont Pipeline amp Water Treatment Plant Copyright 1997 2008 Cooper Testing Laboratory Designation D 422 63 Reapproved 2002 INTERNATIONAL Standard Test Method for m m m m 1 Particle Size Analysis of Soils This standard is issued under the fixed designation D 422 the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision A number in parentheses indicates the year of last reapproval A superscript epsilon indicates an editorial change since the last revision or reapproval 1 Scope 1 1 This test method covers the quantitative determination of the distribution of particle sizes in soils The distribution of particle sizes larger than 75 um retained on the N
134. eneral comments specific comments and a data qualifier legend Analytical results reported by sample and by test with appropriate significant figures and appropriate report limits that have been adjusted for dilution if necessary Appropriate information such as dates of analysis date sampled analysis method date received and date reported If requested by the client quality control information including laboratory performance checks LCS and method blanks and matrix specific QC matrix spike matrix spike duplicate may be included in the report as requested by the client 27 9 2 WETLAB Quality Assurance Flan Revision Dale Apr 2007 Original Date May 2002 Ravision No 4 copy of the COC form Other deliverables may also be included such as raw data packages electronic data transfer or disk deliverables Data Validation Reduction and Reporting Data reduction is performed by the WETLAB analysts and consists of calculating concentrations in samples from the raw data obtained from the measuring instruments The complexity of the data reduction will be dependent on the specific analytical method and the number of discrete operations e g extractions dilutions or concentrations involved in obtaining a sample that can be measured The analyst will reduce or calculate all raw data into the final reportable values Copies of all raw data and the laboratory notebooks strip charts chromatograms spreadsheets and
135. er checks the following items e Data calculations and quantitation of compounds including any dilution factors e Sample holding times e Calibration and Quality control acceptability e Interpretation of chromatograms identification of compounds Unusual or unexpected results will be reviewed and a resolution will be made as to whether the analysis should be repeated Prior to final review and sign off by the Laboratory Director or a designee a third level administrative review is performed for compliance to the laboratory and client QC requirements and to ensure that the case narrative covers any noted deficiencies An invoice any necessary QC reports data packages or EDDs are generated at this time The Laboratory Director performs the final review prior to reporting the results to the client Daia audits are also performed by regulatory agencies client representatives or third party data validators The frequency level of detail and the areas of concern during these reviews are dependent on the specific program requirements Third party data validation done by or at the request of a regulatory agency or client will generally be conducted according to specific technical review protocols such as EPA s Laboratory Data Validation Functional Guidelines 28 WETLAB Quality Assurance Pian Revision Date Apr 2007 Original Date May 2002 Revision No 4 Reports will contain final results units date time collected and analysis
136. erson to relinquish the samples Lab personnel should sign and date each COC form A unique Laboratory ID is assigned and affixed to each container This number must also be written on the COC that corresponds to each sample 8 1 2 Bacteriological Analysis Microbiological samples must be submitted is sterilized containers These are provided to the client upon request The client must complete a Microbiological form for each sample This form should include client address system name system location PWS sample date sample time collection point sample collector s name source type and sample type The sample collector should be the first person to relinquish the samples Lab personnel should date and time each Bac T form The samples are assigned unique Laboratory ID numbers and the ID number is affixed to the sample container The samples are taken directly to the microbiologist for analysis 8 1 3 Other Analyses each client should complete a COC form for each set of samples If a client sends samples by delivery mail and neglects to include a completed COC one should be faxed to the client to fili out and sign then it should be faxed back for login Before signing the COC lab personnel should insure the COC contains clients mailing and billing address phone number required analysis sample collectors name client s sample ID s sample dates and locations The sample collector should be the first person to relinquish the sa
137. es are conducted using standards spikes and duplicate samples as controls A SOP is also prepared which documents and describes the analytical method Once the procedure is properly understood by the analyst and acceptable quality contro data detection limits precision and accuracy is achieved the method is placed in the laboratory for use Quality Control requirements are within individual analytical procedures Standard Operating Procedures WETLAB maintains several types of procedures general laboratory practice procedures program specific procedures data tracking and reporting procedures laboratory equipment control procedures analytical procedures and personnel certification and training procedures All analytical SOPs are reviewed every three years lab equipment and administrative SOPs are reviewed as needed All personnel are responsible for conducting quality related activities in compliance with these documents All forms utilized for recording analytical records are controlled by the program The references used for developing the analytical methods are acknowledged in the written SOP All procedures and forms require review and approval by supervisory staff as well as the QA Department prior to 20 7 3 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 implementation Procedures are prepared approved and reviewed in accordance with procedure 9 05 Standard Operating Proc
138. es are kept on file As pertaining to quality the specific duties and responsibilities of WETLAB s key personnel i e President Laboratory Director Operations Manager and Technical staff are described below President The President is responsible for the oversight of quality and performance of WETLAB The Laboratory Director reports directly to the President and the President has responsibility for all laboratory activities including implementation of the QA program The President is also responsible for Providing technical assistance on quality issues to ensure that WETLAB is in compliance with regulatory programs and with the QA program Providing guidance and approving changes in laboratory quality assurance staff Implementation of the Quality Assurance Manual Company policy and strategy for quality Providing necessary leadership to assure that corporate policy is met Providing resources to implement the formal Quality Assurance QA program Assures that all samples are properly labeled stored and logged into the sample tracking system Laboratory Director QA Manager The Laboratory Director QA Manager is responsible for the implementation of the WETLAB QA program and compliance with standard operating procedures SOP The Laboratory Director QA Manager or an approved designee reviews all analytical data and signs all laboratory reports The Laboratory Director QA Manager assures that all laboratory staff has the
139. estern Environmental Testing Laboratory SOP NO 8 38 Rev NO 6 PAGE 1 OF 5 STANDARD OPERATING PROCEDURE TITLE Oil and Grease METHOD NUMBER EPA 1664 MATRIX WASTE WATER AND OTHER LIQUID MATRICES APPROVAL DATE ISSUED May 30 2007 PREPARED BY Andrew Smith TECHNICAL APPROVAL LAB DIRECTOR APPROVAL LI 1 0 SCOPE AND APPLICATION This method is used to determine n hexane extractable materials HEM in surface waters and industrial aqueous wastes Extractable materials that can be determined are vegetable oils animal fats waxes soaps greases and other related materials 2 0 SUMMARY OF METHOD An acidified 1 liter sample is passed through an activated solid phase extraction SPE disk The activated disk is able to bind up and hold any extractable material The extractable materials will be released from the disk upon the rinsing with n hexane The n hexane along with extracted materials is retrieved in a pre weighed collection vessel The n hexane is evaporated while extracted materials remain in the vessel The amount of extracted materials oil and grease are determined gravimetrically 3 0 SAFETY Use proper precautions when handling unknown samples Wear appropriate protective equipment including lab coat gloves and safety glasses Western Environmental Testing Laboratory SOP NO 8 38 4 0 5 0 6 0 7 0 8 0 Rev NO 6 PAGE 2 OF 5 SAMPLE HANDLING AND PRESERVATION HOLD
140. etion of the client A disclaimer is placed on the final report to this effect Holding time is defined as the time from sample collection until initiation of analysis The chain of custody form must include the date and time sampled For analyses that have the maximum allowable holding time expressed as days the holding time is expressed in calendar days measured from the date sampled Analyses with short holding times expressed in hours have the holding time measured in hours from the date and time collected short hold time parameters such as nitrate nitrite pH hexavalent chromium turbidity orthophosphate and bacteriological samples are logged in promptly upon arrival The technical staff are advised immediately by the login staff if a required hold time is missed due to negligence on the part of the laboratory the client is apprised of the situation Resampling and reanalysis expenses may be negotiated and borne by the laboratory with approval of the Laboratory Director Packing and Shipping The integrity of a sample is only as reliable as the means used to obtain it At the center of any sampling procedure is the sample container and packaging Sampling containers are requested by the client through Client Services A sample bottle request form is completed by the Client Services Representative and fonwarded to the responsible party in the 25 8 7 8 8 8 9 WETLAB Quality Assurance Plan Ravislon Gate Apr 2007 O
141. ets will be created Table 2 2 SWT Monitoring Site Instrumentation See Figures 2 6 through 2 12 for site specific instrumentation locations Instrumentation in grey was previously installed under a separate monitoring contract Descriptions indicate the following instrumentation Flow Sigma 950 Flow Meter Stage InSitu LevelTroll 500 Auto Sigma 900 Series Automated Sampler PS Passive Sampler Instrumentation Event Based Surface Water Sample Collection Site ID SWT Topographic Surface Hydrology Survey Completion Site ID Date SWT SWT Type Inlet Auto OGIN ASC Outlet Auto OGOUT ASC Inlet Flow OGIN Osgood Basin Wet Basin Inlet PS1 2 OGIN PS Outlet Flow OGOUT Summer 2009 Basin PS1 3 OGB PS Basin Stage OG LT Outlet PS1 3 OGOUT PS Park Avenue Upper Inlet PS1 2 PA1IN PS Inlet Flow PA1INB Wet B S 2007 ANR Outlet PS1 2 PALOUT_PS Basin Stage PA1_LT didi Park Avenue Lower Inlet PS1 2 PA21N PS Dry B ES B St PA2 LT S 2007 Basin PA2 ry Basin Outlet PS1 3 PA2OUT PS asin stage s Sn Inlet PS2 4 RPSIN PS Rocky P h Inlet FI RPSIN Sy inia aout Dry Basin Outlet PS1 4 RPSOUT PS Ba I m summer 2010 Connection PS2 3 RPSC PS 3 Inlet PS1 4 BLIN PS Inlet Flow BLIN Blue Lakes B Dry B p Fall 2009 Y Basin outlet PS1 4 BLOUT PS Basin Stage BL LT 2 Eloise Basin Dry Basin Basin Stage EL LT Summer 2003 Wildwood North Basin Basin Stage WWN LT Summer 2010 Coon Basin B
142. flow through the laboratory is essential to satisfying analytical criteria and laboratory reporting policies The paperwork process may begin as a price quote This information is kept as part of the client file Many samples arrive in the laboratory without notice and are handled by the sample login section Analyses are completed as described in the sampie tracking system All analytical and quality control data are reviewed by the Laboratory Manger or designee prior to report generation Once all data have been approved and released for printing the client file information is assembled and a final report is prepared The complete package is submitted to the Laboratory Director for final review and approval Invoicing occurs as a function of report generation Prices are determined based on laboratory list prices or a prearranged discount schedule quote or contract Approved methodologies and reporting formats are specified by the appropriate agency for all certified laboratories Drinking water parameters reported to the state are processed on a form approved by the EPA or applicable state agency The form lists the maximum contaminant levels MCL for those parameters that are regulated The standard analytical report will in general contain the following Cover letter with information on method references client information sample order ID and Lab Director signature A secondary page with pertinent report comments including g
143. for R 1 002 15 8 2 16 0 33 10 9 is based on a value of one for 1 008 s 3 oe 94 112 1 004 15 2 4 15 6 35 10 6 1 005 15 0 5 15 5 1 006 14 7 6 15 3 36 10 4 15 Diameter of Soil Particles 1 007 14 4 7 15 2 37 10 2 15 1 The diameter of a particle corresponding to the per 5 i c es p centage indicated by a given hydrometer reading shall be 1 010 137 10 147 40 97 calculated according to Stokes law Note 14 on the basis that 1 011 13 4 11 14 5 41 9 6 a particle of this diameter was at the surface of the suspension ja p e at the beginning of sedimentation and had settled to the level at 1014 126 14 140 9 1 which the hydrometer is measuring the density of the suspen 1 015 12 3 15 13 8 45 8 9 1 016 12 1 16 13 7 46 8 8 sion According to Stokes law see Table 2 pes j i d pa BE D N 30n 980 G lt X LIT 3 1 018 11 5 18 13 3 48 8 4 1 019 11 3 19 13 2 49 8 3 1 020 11 0 20 13 0 50 8 1 where 1 021 10 7 21 12 9 51 7 9 D diameter of particle mm 1 022 10 5 22 12 7 52 7 8 n coefficient of viscosity of the suspending medium in 1 023 10 2 23 12 5 53 7 6 this case water in poises varies with changes in 15961 08 1 025 9 7 25 122 55 7 3 temperature of the suspending medium 1 026 94 26 120 56 71 L distance from the surface of suspension to the 1 027 9 2 27 11 9 57 7 0 level at which the density of the suspension is being 1225 8 9 28 gt 2 1 029 8 6 29 11 5 59 6 6 measured cm F
144. for dry road material and wet simulated runoff sample collection All field observations are conducted looking downslope along road segment length Road Segment RS ID Days since Precip Field Personnel Evidence of Abrasives yes no Date Evidence of Sweeping yes no Weather Site Dustiness M L DRY Road Material Sample Collection High Accumulation Moderate Accumulation Low Accumulation Of RS Of RS Of RS Sample ID Sample ID Sample ID Sample Time Sample Time Sample Time Location Location Location Flow Path Road Shoulder Flow Path Road Shoulder Flow Path Road Shoulder Drive Lane Drive Lane Drive Lane Surface Integrity H M L Surface Integrity H M L Surface Integrity H M L Fines H M L Fines H M L Fines H M L Sample Volume Sample Volume Sample Volume Kept yes no Kept yes no Kept yes no WET Simulated Runoff Sample Collection Sample ID Surface Integrity H M L Volume Recovered Sample Time Fines M L Material Mobilized H M L Accumulation H L Experiment Time Turbidity Location Average Pressure Flow Path Road Shoulder Volume Applied Drive Lane Spot Turbidity Measurements Sample ID Location Sample Time Flow Path Road Shoulder Drive Lane Turbidity Additional Information Traffic Density H M L Notes 2NDNATURE LLC 321 Frederick Street Santa Cruz California 95062 phone 831 426 911
145. for multi matrix chemical analyses Appendix C provides more detailed information about the specific laboratory equipment Instrumentation is controlled calibrated and maintained according to specified schedules to verify acceptable instrument performance at the time the instrument is used for the generation of analytical data All instruments must be calibrated prior to use with known certified traceable reference materials The manner in which various instruments are calibrated is dependent on the particular type of instrument and its intended use All sample measurements are made within the calibrated range of the instrument Preparation of ail reference materials used for calibration will be documented in a standards preparation notebook Calibration information may be documented in any of several locations The requirements for calibration vary with each instrument thus necessitating flexibility in the recording of such information The calibration data may be documented in an instrument logbook on the raw data on equipment specific forms It is the responsibility of the analyst using the instrument to perform and document the required calibration Calibration must be done on or before the due date Calibration records are maintained by the group responsible for the equipment if the calibration schedule has not been observed or the required level of accuracy cannot be attained for a specific instrument the supervisor is notified and the i
146. ges across both the entire length and width of the road segment to determine overall road segment percentages b Within each accumulation category determine the degree high moderate low of fine sediment using the finger test Lick finger and wipe road surface High Finger is black and sediment feels clayey silty There is little to no grit in teeth ii Moderate Finger is grey to light brown feels slightly clayey with some grit iii Low Little to no sediment on finger and any sediment adhered to finger is very gritty 6 Follow additional draft Road RAM protocols and complete Road RAM datasheet as necessary PRIMARY FLOW PATH Road RAM Datasheet Row 3 a ldentify primary flow path East or North West or South Equal based field indicators relative size road tilt etc Record answers Yes No to following questions concerning primary flow path on field datasheet b Is the road shoulder flow path accessible by a passing road sweeper If flow paths are equal and the answer for either flow path is no record NO c If answer to above is YES move to Datasheet Row 4 If answer to above is NO is there non native material i e road abrasives accumulation in the flow path If flow paths are equal and the answer for either flow path is yes record YES d If answer to above is NO move to Datasheet Row 4 If answer to above is YES can a handful or more of material be easily grabbed from a 1 sq ft area If flow paths a
147. gure 2 5 Park Avenue Basins were the site for event based and seasonal hydrologic and water quality monitoring from November 2005 to December 2007 by 2NDNATURE under contract with CSLT Flow meters and automated samplers were installed at both inlets to the Upper Basin to monitor inflow hydrology and water quality and pressure transducers were installed within both the Upper and Lower Basins to develop basin volume time series and determine outflow frequency duration and volumes Although all instrumentation was removed in January 2008 the housing remains Given the research team s knowledge of the site and the existing infrastructure instrumenting the Park Avenue Basins for monitoring has been relatively efficient The 2NDNATURE 2009b monitoring efforts will be continued at the Stormfilter Vault and include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations The Stormfilter Vault was selected for sampling due to the team s familiarity with the site existing infrastructure to house instrumentation and the close proximity to Osgood and Park Avenue Basins see Figure 2 5 The Stormfilter Vault was installed in the Ski Run Marina parking lot in 2001 as a passive flow through stormwater filtration system containing rechargeable cartridges designed to reduce effluent particulate and dissolved pollutant loads CSLT instrumented the inlet and outlet of the treatment vault with flow me
148. han a single doubtful digit is carried the extra digit or digits are not significant If an analytical result is reported as 75 6 mg L the analyst should be quite certain of the 75 but may be uncertain as to whether the 6 should be 5 or 7 or even 4 or 8 because of unavoidable uncertainty in the analytical procedure If the standard deviation is known from previous work to be 2 mg L the analyst should round off the result to 76 mg L before reporting it Alternately if the method is so efficient that a result of 75 61 mg L can be conscientiously reported then the analyst should not round it off to 75 6 Any digit that is necessary to define the specific value or quantity is said to be significant When measured to the nearest 1 m a distance may be recorded as 157 m this number has three significant figures If the measurement had been made to the nearest 0 1 m the distance may have been 157 4 m this number has four significant figures 32 WETLAB Qualily Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision Na 4 11 5 1 Zeros are significant when they occur in the middle of a number or at the end of a number on the right hand side of the decimal point For example the following significant zeros are underlined 106 0 0106 0 106 0 1060 11 5 2 If a series of operations is to be performed addition subtraction multiplication division all figures are carried through the calculations then the f
149. hat all project personnel are aware of this SOP The project hydrogeologist and or his her designee will be responsible for ensuring that all sample custody procedures will be performed in accordance with this SOP and the study protocol 3 0 FIELD CUSTODY PROCEDURES 3 1 Field documentation will include sample labels groundwater or surface water sampling information forms daily field activities logbook and chain of custody and analysis request forms These documents will be filled out in indelible ink Any corrections to the document will be made by drawing a line through the error and entering the correct value without obliterating the original entry Persons correcting the original document will be expected to initial any changes made The documents are described below 3 2 Sample Labels will be used to identify samples Labels will be covered with transparent plastic tape to protect the label The sample label to be filled out using waterproof ink will be completed as described in the Bottle Labeling Protocol 4 0 CHAIN OF CUSTODY 4 1 The chain of custody COC form is filled out for groups of samples collected at a given location on a given day and is routinely provided by the contract laboratory which signs the COC first to relinquish the pre cleaned sample containers A project COC form will be used for those occasions when the contract laboratory COC form is not available and sample containers are purchased from a commercial vendor
150. hoe San Francisco CALIFORNIA D re Dg p aa PA Cur 4 p CNONATURE LLC TEL 831 426 9119 FRH 831 421 9023 wuww 2ndnaturellc com LEGEND Major Roads Minor Roads SWT Storm Filter SWT MONITORING SITE LOCATION MAP FIGURE 2 5 qaN9lSad 0 Depth Gage and Staff Plate Vertical Passive Samplers Automated Samplers and Flow Meters 100 Contour Flow Path feet C S S 0 25 50 100 A ONONATURE wuww 2ndnaturellc com 2 103 30 mi 102 02 2 102 05 Middle 1 103 2 101 30 1 101 33 Shaded topographic contours of Osgood Basin plotted over a 2001 IKONOS image Elevations values are in feet with a contour interval of 0 5 feet Elevation is relative to Oft on staff plate where Oft staff LOOft elevation OSGOOD BASIN MONITORING LOCATIONS FI G U R E 2 6 PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 23 Park Avenue Basins Upper Wet Basin and Lower Dry Basin Basins Figure 2 7 Monitoring at both Park Avenue Basins will extend 2NDNATURE 2009b data collection and include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations The Park Avenue Basins were selected for sampling due to the research team s familiarity with the site existing infrastructure to house instrumentation and the close proximity to Osgood Basin see Fi
151. igned to be dynamic documents open to revisions and or additions as needed All laboratory personnel undergo a health and safety training class based on the requirements of 29 CFR 1910 1200 and 29 CFR 1910 1450 as applicable to laboratory operations Procedure Manuals The quality of the data produced is directly related to the methods employed and the training of the analysts and staff A vital part of our training program involves the complete familiarization of each analyst and staff member to the methods being performed Procedure manuals Standard Operating Procedures SOPs are available in each analytical section of the laboratory and the administrative areas These procedures are reviewed when necessary at a frequency of at least every three years by the technical staff and Lab Director Changes are made with the approval of the technical staff Lab Director and QA Initial Demonstration of Performance Method Validation All technical laboratory staff must complete an initial demonstration of method performance 14 4 0 9 0 3 6 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision Na 4 in conformance with relevant industry regulatory guidelines for each method they perform Acceptance criteria are specified in the standard operating procedures Training Qualifications Documentation Training files are maintained for each employee that includes documentation of attendance at trai
152. inal answer is rounded to the proper number of significant figures The final result is expressed in terms of the number that has the least significant figures For example 39 3 x 3 5 137 55 but since 3 5 has only two significant figures the final result should be expressed at 140 11 5 3 Unless otherwise specified in the contract WETLAB routinely reports two significant figures for analytical results and three significant figures for quality control samples Rounding Rounding off of digits is a necessary operation in all analytical areas However when it is applied in calculations incorrectly or prematurely it can adversely affect the final results Rounding off is done only as described in the following 11 6 1 When the first digit discarded is less than five the last digit retained should not be changed For example 3 46325 if rounded to four significant figures would be 3 463 if rounded to three significant figures 3 46 11 6 2 When the first digit discarded is greater than five or if it is a five followed by at least one digit other than zero the last digit retained should be increased by one unit For example 8 37652 if rounded to three significant figures would be 8 38 if rounded to four digits would be 8 377 11 6 3 When the first digit discarded is exactly five followed only by zeros the last digit retained should be rounded upward if it is an odd number but no adjustment should be made if it is an even number
153. ing samples at a similar location on the storm hydrograph and observed water quality differences between the samples is the result of flow through and interaction with the SWT CNONATURE LLC TEL 831 426 9119 FAH 881 481 9088 swr SAMPLING FIGURE 2 13 wuww 2ndnaturellc com Ad 3 3153 A OSGIN_PS2 OSGB_PS3 Water Quality Volume OSGOUT_PS2 7 s OSGB_PS2 OSGOUT PS1 s ES 51 lt BASIN LE OSGOUT PS3 m treatment outlet 51 park avenue inlet PS2 summ B Park AvENuE Upper Basin PA1 _ bypass outlets _ _ Water Quality Volume _ _ _ _ _ PA1OUT PS2 SE PAT1OUT PS1 treatment outlet C A8 GANSISAG PARK AVENUE Lower Basin 2 Water Quality Volume aS ES PA2IN PS2 PA2OUT PS2 treatment outlet a gt PA2IN PS1 PA2OUT 51 LEGEND Conveyance Structure CNONATURE LLC TEL 831 426 9119 FA 831 421 9023 wuww 2ndnaturellc com Note Schematics drawn to show relative elevation within each SWT Horizontal dimension is not drawn to scale lt gt Passive Sampler CROSS SECTION SCHEMATICS OF SWT SAMPLE COLLECTION FIGURE 2 14 WINTER 2010 Rocky Point SoutH BASIN BASIN Water Quality Volume RPSOUT_PS3 bypass outlet gt RPSOUT_PS4 gt RPSOUT_PS2 treatme
154. inundation within the SWT Data collection to inform the PLRM user input requirements will include e Hydraulic conductivity analyses of discrete sediment samples collected from the base and sides of dry and wet basins e CHP measurements conducted according to the BMP RAM protocols described above and e Solving EQ1 for event seasonal and annual infiltration volumes based on the detailed SWT hydrology monitoring To improve our spatial understanding at least once per year during dry conditions discrete soil samples collection and simultaneous CHP measurements will be conducted from various locations within each basin that represent assumed differences in annual inundation characteristics The soil samples will be submitted to the Cooper Laboratory for particle grain size distribution analysis to improve the technical basis of PLRM and BMP RAM with respect to annual basin infiltration volumes basin soil properties and discrete spatial CHP measurements To improve our temporal understanding of infiltration rate variability between dry and saturated soil conditions the SWT surface water elevation and volume time series and the water budget mass balance equation EQ1 will be used to determine event seasonal and annual infiltration volumes and derive a continuous infiltration volume time series This continuous infiltration volume time series will improve estimates of average annual infiltration rates in SWTs by including times of both saturated and un
155. ion discharge events Establish photo points location camera orientation and repeat every field visit to document changes over time Detail the locations of each photo on field datasheet or in field notebook All field work is referenced by view context looking downstream downslope e g right road shoulder is defined as the road shoulder on right when looking downslope Take all precautions to avoid sample contamination Be aware of the pollutant of concern and take all precautions to avoid contamination Sources of contamination vary with different pollutants Clean sample bottles field equipment etc with distilled de ionized DI water Properly label samples according to protocols and accurately complete chain of custody forms Key Phone Numbers 2NDNATURE Office 831 426 9119 info 2ndnaturellc com Maggie Mathias Field Coordination 831 345 5103 maggie 2ndnaturellc com WETLAB Office 775 355 0202 Raph Townsend Field Sampling 530 386 2454 raph townsend 9 yahoo com Cory Hunt Field Sampling 530 541 2980 or 775 530 7319 chunt enviroincentives com 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 45 ATTACHED PROTOCOLS Protocol A Road Condition Evaluations Visual Observations and Dry Material Sampling Protocol B Controlled Urban Road Experiments Wet Sediment Sampling Protocol C InSitu I
156. ion date Other information such as exact preparation instructions lot number and solvent used can be cross referenced in the solutions standards prep logs by name and date prepared Disposal Proper disposal of expired standards chemicals biological materials reagents and solutions is imperative Most standards reagents solutions and chemicals are deemed expired by the manufacturers supplied expiration date If no date is available laboratory determined date is given by the user based on the known stability of the chemical These wastes and their containers if required are deposited in appropriately labeled satellite receptacles in accordance with 29 CFR Part 1910 As these satellites become full they are transferred to permanent disposal containers as liquid waste by type or lab packed solid wastes or biological materials sharps Refer to WETLAB Chemical Hygiene Pian for methods of transfer personal protection required and documentation and to SOP 11 02 Sample Disposal and Waste Management Wastes are removed from the laboratory facility on a regular basis Copies of all manifests and analytical resuits are retained by the Laboratory Director Liquid biological wastes such as total coliform samples are sterilized by contact with bleach for a minimum of 10 minutes and then disposed of as ordinary liquid waste Solid biological waste such as fecal coliform plates or Quantitray trays are sterilized by either cont
157. ired at the time of the very first visit to the road segment and includes a general inventory of road segment characteristics and road factors The quicker road condition assessment is performed during every road segment visit Personnel Needed Initially 1 field personnel 15 minutes per road segment Subsequent Observations 1 field personnel 5 minutes per road segment Equipment Needed e Survey Tape Stadia Rod Pavement Distress Identification Guide Field Datasheet Pen Initial Road Segment Characterization Note Initial assessment is performed once the first time the road segment is monitored and includes collection of metadata which will be field verified during subsequent road segment visits 1 Determine location and assign road segment site code a Record name of road Note cross streets b Identify and record start upslope and end downslope boundaries of road segment using conspicuous permanent landmarks street signs fire hydrants fencing drop inlets etc Mark location on a map street map field map etc d Assign unique site code using name of road and letter as necessary Example DD is on Dale Drive H89A is one of many road segments on Highway 89 2 Record segment metadata estimating as necessary This information will be verified with phone calls and GIS data e Jurisdiction in charge of road segment maintenance e Road segment type primary or secondary e Road segment risk high moderate
158. iscuss those practices and complete the weekly log has been challenging Requests to complete the log have been met with some resistance and will require persistent communication from 2NDNATURE staff ADDITIONAL LAND USE MONITORING Objectives The Parcel Methodology is used to estimate the CRCs generated from urban parcels such as single family and multi family residential and commercial land uses The Parcel Methodology defines land use condition based on the presence absence of private party pollutant source control and or hydrologic source control implementation The research team will conduct initial dry material collection and controlled experiments on a collection of land uses commercial multi family residential single family residential etc throughout the Lake Tahoe Basin to ground truth the current PLRMv1 assumptions on particle grain size distribution and potential pollutant generation risk of the associated land uses Draft Protocols Similar to the development strategy for the Phase protocols 2NDNATURE 2009a the 2NDNATURE team anticipates the full development of the Land Use Monitoring protocols to be an iterative process The draft protocols are presented below however we expect to modify and refine these protocols as new information is gained Final protocols will be produced with the Draft Technical Report 2NDNATURE will select monitoring sites based on the following criteria e Typify the range of urban land uses c
159. iteria Appendix F Corrective Action Report 35 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision Na 4 APPENDIX A QUALITY ASSURANCE GLOSSARY 36 WETLAB Quality Assurance Plan Revislon Date Apr 2007 Original Date 2002 Revisian No 4 Quality Assurance Glossary Accreditation A formal process by which a laboratory is evaluated for its competence to perform a specified kind s of measurement Also the decision based upon such a process When a certificate is issued the process is often called certification Accuracy The degree of agreement of a measured quality of concern Aliquot A part which is a definite fraction of a whole as aliquot samples for testing or analysis Analvte The specific component measured in a chemical analysis Blank The measured value obtained when a specified component of a sample is not present during the measurement In such a case the measured value signal for the component is believed to be due to artifacts hence it should be deducted from a measured value to give a net value due to the component contained in a sample The blank measurement must be made so that the correction process is valid Blind Sample A sample submitted for analysis whose composition is known to the submitter but unknown to the analyst A blind sample is one way to test proficiency Calibration Comparison of a measurement standard or instrument with another standard
160. ity data for primary and secondary roads however this SNPLMA funded monitoring effort will expand data collection to include some limited sampling of additional urban land use types included in PLRMv1 This monitoring plan will remain consistent with the urban road monitoring protocols and data collection strategies developed by the Phase study 2NDNATURE 2009c The sampling locations sample collection protocols and data analysis will continue as established by 2NDNATURE 2009a Monitoring on other urban land uses will be phased based on preliminary findings and will use cost effective techniques conducted in a manner consistent with the established urban road monitoring procedures URBAN ROAD MONITORING The urban road monitoring will continue to evaluate the influence various factors may have urban road condition improve and validate PLRM CRCs for urban roads and improve the empirical linkage between CRCs and likely road condition The effort will continue to focus upon FSP and TSS with a select number of samples based on available resources analyzed for SRP as well The 2NDNATURE research team will combine documentation of key road segment factors as defined in the PLRM and Road RAM observations of relative roadway condition and cost effective roadway sampling efforts over a range of urban road conditions that exist in Lake Tahoe Basin Urban road sampling will consist of controlled experiments and the contributing roadway condition will b
161. ive action responses a formal corrective action report will be forwarded to the respective outside client or agency Management Review The laboratory management conducts a review of its quality system and its testing and calibration activities to ensure its continuing suitability and effectiveness and to introduce any necessary changes or improvements in the quality system and laboratory operations The following criteria are reviewed Internal audit results and responses External audit results and responses Interlaboratory comparison tests Client concerns and or complaints Corrective action reports EH amp S incidents having the potential of affecting client analyses Assessment of current certifications Within 10 working days of performing the review a copy of the review will be distributed as necessary to departmental staff in order to correct any findings or deficiencies associated with their department All deficiencies must be responded to within 30 calendar days after receipt All records are maintained by the QA Department 11 2 4 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 2 3 4 Performance Evaluation Audits As part of an on going laboratory QA QC program WET LAB routinely participates in semi annual Water Pollution WP Water Supply WS and Soils Performance Evaluation Studies and in round robin proficiency testing and laboratory certification programs con
162. ive lane 1 Left Right looking downslope or the view described in step 3b above 2 Center Crown water is routed equally to both road shoulders 3 Possible field indicators include e Relative size of flow paths dominant side is larger e Presence absence of stabilization features e g curb and gutter dominant side more likely stabilized e Evidence of flow dominant side more likely to have flow li Degree describes the percentage of flow routed to the dominant side 1 High 95 100 of runoff is directed to one side 2 Moderate 75 95 of runoff is directed to one side 3 Low Runoff is evenly distributed 50 or up to 75 of runoff is directed to one side e Determine road surface integrity high moderate low Observe overall integrity of road segment surface pavement observing distribution and intensity of cracks pocks etc i High Less than 10 of surface shows signs of deterioration ll Moderate 10 25 of surface shows signs of deterioration ili Low Greater than 25 of surface shows signs of physical deterioration f Visually assess the percent of the road segment area that is distressed and note dominant distress type i Block Cracking pattern that divides asphalt into rectangular pieces li Crack Long narrow deteriorations in asphalt can be longitudinal or transverse iii Pock Circular depressions in pavement surface e g potholes g Determine relative traffic density high moderate low i High Very
163. ject last three digits If there is more than one sample in a project a two digit extension is added to the Lab Number example 903 001 01 All samples are labeled with the sample number The information on the clients sample bottle label is checked for consistency with the chain of custody form Any inconsistencies are corrected by the client sample Management and Tracking The WETLAB Laboratory ID Numbers are assigned in order to group samples which were received together as a set When all samples are logged in the samples are placed in the appropriate refrigerator and the proper lab is notified of any RUSH samples or any short holding times Because the facility is secured and the entrance by the clientele and general public is very restricted it is not necessary to have an internal Chain of Custody procedure unless requested by the client Any sample projects which have specia handling or rush turnaround time requirements are rapidly identified and the information is communicated immediately to the appropriate lab personnel The status of all projects are reviewed daily by technical staff and customer service representatives to assure that all projects get handled as requested by the client or as required by the circumstances Sample Containers and Preservation After consultation with the client a sample bottle request is initiated The type of sample container volume and required preservatives are indicated on the bottl
164. land use monitoring will include e Visual observations consistent with urban road protocols will include degree of sediment accumulation percent distribution of sediment accumulation categories and degree of fines of the sites e Dry material samples will be collected from a 1ft x 1ft square using a hand broom and a comparison of total and fine sediment will be made relative to land use type native soil type and sediment accumulation category e Controlled experiments wet sediment sampling using the portable simulator will be conducted on impervious surface to generate standardized TSS and FSP water quality concentrations with SRP as resources allow to compare relative risk to downslope water quality from the range of land uses For pervious surfaces visual observations and dry material sampling will be consistent with the draft protocols developed for the pervious road shoulder monitoring Pervious land use monitoring will include e Visual comparisons of the degree of disturbance e g soil compaction and human traffic will be estimated for the entire sampling segment similar to the percentages of high moderate and low sediment accumulation on urban road segments e Dry sediment sampling of 100 mL of material will be collected within each disturbance category similar to the urban road protocols on the pervious road shoulder The sampling will standardize sample collection techniques from site to site Samples will be submitted for grai
165. lation Note The most effective installation materials housing and configuration for each station will depend upon site conditions and limitations Trained and experienced field personnel should be used to ensure proper and safe installation of expensive equipment in stream Note For best results samplers should be installed during low flow conditions when access to the channel is the greatest To avoid contamination Storm Water Samplers should not be left at site between sampling events 1 Installation and housing must be secure and sturdy enough to remain in place during high flow events and potential collisions with debris e Secure vertical steel sign post rebar in stream bed so it is buried 1 2ft in channel substrate for stabilization f possible place side braces into the stream bank to further secure vertical post e Depending on the differences in stage between targeted discharges it may be possible to secure more than one sampler to a single vertical sign post Install Nalgene Mounting Kit according to the details in the Nalgene Installation Guide for stream mounting Install kit on upstream side of sign post to reduce obstruction of sample Test placement of Storm Water Sampler at station Use level to ensure that sampler will rest evenly on housing Make any adjustments necessary Sample Collection Deploy Storm Water Sampler 1 e 6 7 Arrive at station 24 48 hours prior to anticipated runoff event In
166. le Be careful not to tilt sampler too quickly and lose water from the collection pan DO NOT rest sampler on bottle as this may damage the bottle lid fitting ii Person 2 grabs edges of road tape extending beyond sampler and helps lift sampler off road loosening tape where stuck to road While Person 1 holds sampler Person 2 uses squirt bottle filled with 250ml to rinse sampler and transfer all sediment into bottle This is all the water you get so use judiciously If necessary transfer sample to a sample analysis bottle Swirl sample to mobilize sediment Carefully transfer to other bottle to avoid losing sample volume It will be necessary to transfer water back and forth a few times to get all sediment from collection bottle to analysis bottle 7 Measure sample turbidity following instructions in turbidimeter user manual A couple of notes a b f Always run 2 3 validation tests with provided gels with known turbidity prior to testing any sample Record validation results Never touch the outside of the glass vial with fingers Use the black cloth provided Have at least 2 vials for samples one for cleaner samplers one for dirtier samples Rinse with sample prior to analysis to condition the vial Pour sample back into analysis bottle following measurement Throw out vials at the end of the sampling period Record out of range samples as 1000NTU and ensure lab completes turbidity analysis for thes
167. libration and QC Criteria cont METHOD CONTROL ITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION ICP Metals 200 7 Initial Calibration Rerun calibration Minimum of a blank and one standard Rerun blank if second CCB analysis out recalibrate and reanalyze all samples since last compliant CCB Laboratory Reagent Blank Method blank 1 per 20 or batch reanalyze standards Continuing calibration After initial cal Reanalyze standard Instrument Performance 5 if second analysis Check after subsequent out recalibrate IPC cal 10 rerun all samples since last compliant IPC after each IPC solution 2 2 the analyte Determine cause of MDL problem redigest Laboratory Fortified Blank 15 Recalibrate LFB 1 per 20 or batch Rerun batch set if necessary and Spiked Samples 30 Redigest or if LFB Lab Fortified Sample OK flag data as Matrix suspect due to one per 10 samples matrix interference 59 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Ravision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROL ITEM ACCEPTANCE CORRECTIVE CRITERIA ACTION ICP Metals 200 8 Initial Calibration ICAL r20 995 Rerun calibration Minimum of a blank and one standard standards Continuing calibration 10 After ICAL after every 10
168. linder is to be placed in the water bath the distilled or demineralized water to be used shall be brought to the temperature of the controlled water bath or if the sedimentation cylinder is used in a room with controlled temperature the water for the test shall be at the temperature of the room The basic temperature for the 2422 63 2002 wn ge S S PRESSURE GAGE NEEDLE VALVE BAFFLE CUP CONTAINER AIR SUPPLY CUP CROSS SECTION CUP A CONTAINER CROSS SECTION CUP B FIG 3 Air Jet Dispersion Cups of Apparatus B Galvanized Sheet Metal eee rm 2 Wood Casing EMI ane 2 Cork Insufafion Lo Metric Equivalents in 7 8 1 mm 22 2 25 4 76 2 61 4 14 37 158 2 356 940 FIG 4 Insulated Water Bath hydrometer test is 68 F 20 C Small variations of tempera ture do not introduce differences that are of practical signifi cance and do not prevent the use of corrections derived as prescribed 5 Test Sample 5 1 Prepare the test sample for mechanical analysis as outlined in Practice D 421 During the preparation procedure the sample is divided into two portions One portion contains only particles retained on the No 10 2 00 mm sieve while the other portion contains only particles passing the No 10 sieve The mass of air dried soil selected for purpose of tests as prescribed in Practice D421 shall be
169. ltrans http Awww dot ca gov cgi bin roads cqi Weather http Awww weather gov 2 FIELD NOTES a b C d 3 CON a Field notes can never be too detailed Follow the protocols and complete field datasheets completely Field personnel must ensure all critical information is recorded during observations Each field personnel should carry a field notebook to document any additional observations problems encountered equipment needs etc Make it standard practice before leaving road segment to take time to write down and detail any of these notes Take lots of photos TAMINATION Always be aware of potential contamination and continually take actions to avoid contamination The pollutant of concern with this project is sediment dirt and dust Manage 2NDNRTURE equipment samples and sample containers to minimize contamination The quality of the research is dependent upon the quality of the observations and samples collected b Take efforts to minimize contamination of inadvertent dirt in all sample bottles equipment etc c Wipe down all dry material sampling equipment between samples and especially between road segments d Rinse and dry all wet sampling equipment Be sure the water supply squirt bottle and graduated cylinder remain dirt free e Place all bottle caps with open side down whenever they are removed from the bottle Road Condition Visual Assessment An initial characterization is requ
170. lytical procedure from preparation to final analysis A blank or reagent blank is used to monitor potential contamination from the sample preparation process The reagent blank volume or weight must be approximately equal to the sample volumes or sample weights being processed In the absence of a suitable solid matrix for soil blanks reagents will be added to an empty flask and carried through the entire analytical scheme Results will be calculated based on starting with a blank soil approximately equal to the weight of the samples specific QC guidelines are given in departmental analytical procedures Appendix E contains QC criteria by method for inorganics and organics Occasionally problems are encountered in meeting the QC requirements In some cases data may be outside the criteria and still be reported e g when insufficient volume remains to reanalyze In these cases a Nonconformance corrective Action Report must be generated by the analyst and approved by the Laboratory Director or QA Manager Additionally client contact may be necessary to explain the QC problem If acceptance criteria are still not met after corrective actions have been taken and no further corrective actions are indicated the data is reported with a qualifier or flag Any 21 8 0 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Dale 2002 Revision No 4 data qualifiers used will appear on the applicable data report form and will
171. mate volume ml recovered in sample analysis bottle Degree of material on road surface mobilized during rainfall simulation high moderate low Look at square where rainfall simulation occurred and compare to adjacent road surface i High Most to all sediment was removed during sample collection ii Moderate 75 90 of the sediment was mobilized during sample collection iii Low Less than 75 of sediment was mobilized during sample collection Results of field turbidity test ntu 9 All wet samples are submitted to laboratory for analysis a b C Label bottles in sharpie with Sample ID Date and Time Place upright in cooler on ice Never store or freeze water samples on side Complete chain of custody Samples are submitted for the following analyses i TSS mg L li Particle Grain Size Distribution as of mass lum 10 um 16 um 20 um 63 um 100 um 1000 um ii Turbidity 1000ntu for those samples that were out of range on field turbidity test QA QC Requirements i Field triplicates should be collected and submitted to the laboratory at a minimum of one site per sampling period Ideally triplicates are performed at two sites one relatively dirty and one relatively clean road segment li One field blank should be submitted to laboratory per sampling period 1 Use same water source used for controlled experiments 2 Transfer water to sample collection bottle and then sample analysis b
172. mples In some cases an analysis must be submitted to another laboratory sample Login The Sample Custodian will unpack the samples and check sample preservation pH temperature etc in accordance with WETLAB s sample receipt and log in procedures The custodian will record any problems encountered and contact the Lab Director for instructions A written job file is kept which includes copies of the COCs with cross referencing information for all samples received and distributed Any sample projects that have special handling or rush turnaround time requirements are rapidly identified and the information is communicated immediately to the appropriate lab personnel Custody seal s on shipping container s are inspected for evidence of tampering and noted The sample bottles are counted and verified against the client COC record Discrepancies in receipt are 23 8 3 8 4 WETLAB Quality Assurance Pian Revision Date Apr 2007 Original Dale May 2002 Revision No 4 documented The COC is signed and dated by the sample custodian A unique Laboratory ID Number is assigned in order to group samples that were received together as a set example 903 001 The WETLAB ID number is recorded in the Sample Log In Book along with the clients name date sample type and project name number For WETLAB s purposes the number designations delineate the year first digit the month second amp third digits and the lab number for this pro
173. n rerun all samples since Method blank 1 per 20 or batch Spiked Samples 5 one per 20 samples or each batch if 20 samples Flag data as suspect due to matrix interference 20 RPD if sample value gt 10 x IDL Matrix duplicates Re prep samples and reanalyze Interference Check Sample ICS Beginning amp every Recalibrate amp 8 hours rerun all samples R 80 120 since last compliant check sample LCS every 20 See Method samples 65 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 Appendix E Method Specific Calibration and QC Criteria cont ANALYSIS METHOD CONTROL ACCEPTANCE CORRECTIVE ITEM CRITERIA ACTION Mercury 7470 7471A Initial Calibration gt 0 995 Recalibrate 5 std 1 blank Continuing 20 calibration after every 10 samples previous 10 and end of run samples Matrix spike 15 Reanalyze batch 1 per batch or run by MSA Matrix Spike See SOP Duplicates Method Blank 2 2 MDL Reprocess 1 per 20 or samples batch Continuing MDL Calibration Blank CCB after Ical every 10 samples and end of run Recalibrate reanalyze Check 10 Recalibrate Standard after each calibration LCS 1 per batch 10 Reprep batch and reanalyze 66 WET Quality Assurance Pian Revision Date Apr 2007 Original Date May 2002
174. n Environmental Testing Laboratory 475 E Greg Street 119 Sparks NV 89431 April 2007 WETLAB Quality Assurance Plan Revision Dale Apr 2007 Original Date 2002 Ravision 4 WETLAB Western Environmental Testing Laboratory WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 LABORATORY QUALITY ASSURANCE PROGRAM REVISION 4 April 2007 Signature of the authorized individuals below constitutes approval of the general format _ composition of this manual Individual sections are coordinated with the parties responsible for their implementation Date Approved B uf e 07 Andrew Smith Laboratory Director Michelle Sherven President Date 4225 05 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 TABLE OF CONTENTS INTRODUCTION QUAI POLICY u u l l u A N 5 1 0 LABORATORY ORGANIZATION AND MANAGEMENT tente etas 6 1 7 WETLAB organizational ede 6 1 2 Management RespoDSIDIIIUBS cu va RE vae dde Fa eda 6 To EIOS POM GY De veta de Du Qusaqa 8 Figure 1 1 1 WETLAB Corporate Organizational Chart iii eere 8 9 2 1 Quality Assurance Program rtr ss etras a eR nds 9 2 2 Quality Assurance Report
175. n funnel If the pH is not lt 2 add HCL until the pH is lt 2 Pour the 1 liter sample into the reservoir and apply minimum vacuum to the waste side This sample extraction should take at least 10 minutes to achieve best results Once extraction is finished allow vacuum to dry disk for 10 minutes While vacuum is open to waste add 4mls of acetone to the reservoir and disk or attach sodium sulfate drying cartridges to the SPE manifold to remove any remaining water Apply max vacuum for 5 minutes Sample Elution 8 4 1 8 4 2 Add 10mls of n hexane to sample container to rinse remaining sample and add to reservoir This n hexane is added in order to elute residue from disk When adding the solvent rinse down the sides of the reservoir Carefully apply vacuum to the elute side and pull a few drops of solvent through and release the vacuum Allow the disk to soak for 2 minutes before collecting the solvent Repeat this step once more Remove the collection vessels from the manifold transfer solvent to the pre weighed aluminum evaporating tins and place them in a laboratory hood to slowly evaporate the solvent When all apparent traces of the solvent has been evaporated and only that Western Environmental Testing Laboratory SOP NO 8 38 9 0 8 5 Rev 6 PAGE 4 5 residue which is present is observable allow the evaporating tins to stand in the laboratory hood for an additional 30 minutes 8 4 3 Place sam
176. n size distribution analysis during preliminary evaluations to determine if analyses yield any valuable information concerning FSP generation based on land use and native soil types 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 19 SWT MONITORING SWT monitoring protocols and data collection strategy will build upon sites and protocols developed by 2NDNATURE 2009a and expand monitoring spatially temporally and in terms of data collected for analysis Spatially SWT monitoring will include the four SWTs evaluated under 2NDNATURE 2009c as well as an additional 5 SWTs The research team will conduct monitoring from Fall 2009 through Summer 2011 to add 2 complete years to the Winter 2009 Phase dataset Expanded data collection will include SRP analysis of selected samples as resources allow the implementation of the BMP RAMv1 tool 2NDNATURE 2009b repeatedly on each of the selected SWTs to track condition and frequent CHP measurements and soil samples for comparison to the average annual infiltration rates observed from the continuous water budgets at each SWT as appropriate Collectively these data will directly inform the PLRM v1 CEC values improve our ability to link CHP measured values with PLRM infiltration rate inputs and increase our understanding of design parameters as well as SWT condition on SWT treatment perform
177. n the putty and the road Apply a generous amount of putty along downslope swept line as well as 3 4 along sides to protect corners from leaking No tape is used in this step sampler is placed directly on to plumber s putty e Place sampler over selected location with collection pan on the downslope end Looking down on sampler line front edge of rainfall area square with upslope edge of tape putty to standardize the rainfall area to 1 x1 When done correctly approximately 4 of tape putty will be exposed along edge of collection pan f Place batteries on each sampler wing Using rope and carabiners distribute weight of batteries on sampler edges Make sure rope goes over top of sampler bar and will not disturb water application on rainfall square g Tape collection pan to road surface i If using plumber s putty push the excess putty over the collection pan edge forming a barrier and seal between the ground and sampler li Use gorilla tape to secure collection pan edge to tape on road surface Use a straight edge to smooth the tape at the corners of the sampler to prevent leaks out the side and corners of the sampler It may be helpful to angle the tape towards the inside of the rainfall square to create seal To prevent pooling in the collection pan near the tape cut tape on downslope corners and smooth to sides of collection pan 4 Attach pump and prepare for sampling a Fill graduated sampler to 750 ml Ensure intake pipe in
178. nce level see table 5 Standard deviation Soil sample MDL determinations for organics may be performed using muffled sand an appropriate salt or other soil matrix substitute The instrument detection limit IDL is defined to be three times the average of the standard deviations obtained on three nonconsecutive days from the analysis of a standard solution with seven consecutive measurements of that solution per day The standard solutions analyzed shall be prepared at a concentration of 3 to 5 times instrument manufacturer s estimated IDL Where no such estimated IDL exists the procedure specific method detection limit may be used MDL studies are not required for acidity alkalinity BOD color corrosivity DO gravimetric oil and grease hardness ignitability pH titrimetric sulfide conductivity any of the solids methods or turbidity 12 0 CONTRACT REVIEW Prior to accepting a contract or order for work the contractual materials are reviewed to ensure that the clients project requirements are adequately defined and understood and that the laboratory can meet those requirements The review process is defined in the procedure for Contract Review 09 12 APPENDICES Appendix A Quality Assurance Glossary Appendix B Containers Preservatives amp Holding Times Appendix C Site Specific Information for W E T LAB Facility Appendix D Example of an Internal Audit Checklist Appendix E Method Specific Calibration and QC Cr
179. nd externally to individuals requiring the information Changes to controlled documents are subject to approval of the QA Department 10 1 Laboratory Data Control Raw data are retained for a minimum of five years and disposed of thereafter Exceptions are clients who specify in the contract document that raw data is to be transferred to their custody at the end of the five year period Each analytical section of the laboratory is issued laboratory notebooks specific to an instrument and or method The following information must be included for each analysis Analysts signature once page and day The instrument used in the analysis lf a laboratory has more than one instrument of a particular model a unique designation must be given to each Calibration curve correlation coefficient if applicable Calibration and Spiking Standards Identification Analytical procedure used Date and time WETLAB laboratory sample number Any deviations from standard analysis procedures such as dilutions Any blank sections left open on a page will be crossed out All entries will be in dark colored ink that can be easily photocopied To ensure that all raw data is documented completely a notebook audit is performed by the QA department or Laboratory Director a minimum of once per quarter This audit encompasses a check for ail required quality control and documentation procedures outlined in the SOPs A unique control number is issued for all l
180. nders and are stored on a bookshelf in the main lab as a central reference source available to all employees Standard certificates are sequentially numbered logged into a standard database maintained by the QA department and retained by the group leaders Items received broken or missing pieces are noted in the log and then given to the purchasing agent for reconciliation otorage Proper chemical storage is essential to the quality of the data generated as well as the safety of the analysts and staff All stock organic solvents and acids are stored in fire proof OSHA approved metal storage cabinets Dry chemicals in use are stored in a cool dry area in each laboratory Chemicals and standards requiring refrigeration are retained in a unit temperature controlled at 4 C 2 C Stock cultures are stored in a freezer at 26 C and working cultures are stored at 4 C 2 C To prevent cross contamination refrigerated chemicals and standards must be stored in a separate unit from samples and sample extracts Chemical and Standard Labeling and Tracking A standard format for labeling of reagents stock cultures chemicals and standards is necessary to provide traceability consistent information maintenance of current solutions and an orderly appearance Upon arrival each solvent acid chemical and standard container is labeled with the following information in plain view without obscuring any information on the original container label The d
181. nditioning 8 2 1 Wash reservoir and disk with 10ml of n hexane Apply light vacuum to waste side and pull about 1 through the disk Vent the vacuum and allow disk to soak for 2 minutes Apply light vacuum Western Environmental Testing Laboratory SOP 8 38 8 3 8 4 8 2 2 8 2 3 Rev 6 PAGE OF 5 to pull remaining solvent through the disk and allow to dry Repeat this step once more Add 10mls methanol to the reservoir Pull 1 ml through disk then allow to soak as above Apply vacuum to waste side and pull methanoi through until it is 1 2 mm above the surface of the disk Do not let the disk dry out Add 10mls of reagent grade water to the reservoir Apply vacuum to waste side and pull the water through disk until the surface of disk is covered by 1 2mm of water Repeat once more Never let disk dry out before introducing the sample Sample Extraction 8 3 1 8 3 2 8 3 3 With a marker mark sample bottle at volume level for subsequent true volume determination Check the pH of each sample using the following procedure Dip a minimal portion of glass stirring rod into the well mixed sample Withdraw the stirring rod and touch it to the narrow range pH test strips Retain the glass rod until until the end of the extraction period and the rinse the stirring rod with a small portion of n hexane to ensure no extractable material is lost on the stirring rod Collect the rinsate in the extractio
182. nformation in station visit monitoring log Collect Samples 1 2 3 Arrive at the station within 6 12 hours of the onset of stormwater runoff and anticipated sample collection Remove Storm Water Sampler from mounting tube and immediately seal top with lid Sample must have been properly collected in order to be submitted to lab QNONATURE _ B ecosystem Fa SCIENCE DESIGN If sample has exceeded the proper holding time in the passive sampler then samples cannot be submitted to lab Sediment holding times are lengthy Samples to be submitted for nutrients hydrocarbons trace metals and pesticides can remain at site up to 4 days if water air temperatures are below 38 C Evaluations of sample condition must be made in field based on conditions prior to submission to laboratory If the runoff volume was not great enough to fill the bottle and properly seal the lid sample in unusable the exception being that field personnel arrived within an hour of sample collection In this case sample can be submitted to lab but must be flagged as unsealed 4 If analyses require chemical preservation transfer sample to appropriate sample analysis bottle 5 Complete label for each bottle and firmly secure to bottle Label should include at minimum project name station name date time and field personnel 6 For field triplicates transfer samples into appropriate analysis bottles as necessary and include replicate number
183. ning seminars a listing of method certifications successfully completed and checklists for method specific training requirements Documentation of personnel qualifications resumes are also maintained on file To be certified to perform sample analysis each analyst must demonstrate a working knowledge of the technical and theoretical aspects of their specialty and position Each analyst is required to undergo individual training in his or her department prior to unsupervised analysis of any samples The training consists of at least the following points 1 The trainee shall become familiar with the procedures to be performed along with the reagents and equipment used 2 Successful initial demonstration of method performance is required Under the direction of a certified analyst the trainee shall analyze a set of known samples to demonstrate a good working knowledge of the analysis that will be performed Exceptions to this requirement are microbiology and tests for which spiking solutions are not available for example solids analyses pH color or turbidity 3 Finally the trainee shall go through all the steps of the analysis including the preparation of standards and reagents When the trainee has proven competence of the specific analysis paperwork is completed documenting the trainee s certification The originals of current employee technical certifications are kept on file Certifications are updated as needed LABORATOR
184. not in compliance with requirements Direct and maintain records of laboratory certification programs Implementation of the Quality Assurance Manual Operations Manager The Operations Manager reports directly to the President The Operations Manager has sufficient authority and organizational freedom to identify efficiency or personnel problems to initiate recommend or provide solutions and to verify implementation of solutions The duties and responsibilities of the Operations Manager are as follows e Direct and coordinate the overall operation of the laboratory Ensure the effective utilization of staff adherence to technical requirements schedules and budgets in order to maximize profits and satisfy clients Responsible for laboratory productivity and turnaround times e Supervise group leaders whose responsibilities include assigning laboratory priorities Administer LIMS Ensure the adherence to quality requirements on a daily basis by technical staff Technical Staff All WETLAB analysts have the primary responsibility for performing their jobs in accordance with the WETLAB SOP s and QA manual They work together with their co workers and supervisor to ensure that the company s high standard for quality is upheld They perform and document calibration preventative maintenance data processing and data review procedures Report any nonconformance to their supervisor and QA Manager Ethics Policy 4 WET
185. nstallation and Maintenance Protocol D Sigma Installation Maintenance and Sample Collection Protocol E Passive Sampler Installation Maintenance and Sample Collection Protocol F Sample Labeling Protocol G Chain of Custody ATTACHED DATASHEETS Road Condition Evaluation Datasheets Instrument Logs Sigma InSitu Chain of Custody Labels 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 46 CHAPTER SIX REFERENCES 2NDNATURE 2006 Lake Tahoe BMP Monitoring Evaluation Process Synthesis of Existing Research Final Report Prepared for USFS Lake Tahoe Basin Management Unit October 2006 2NDNATURE 2008 Water Quality Performance Evaluation of Park Avenue Detention Basins South Lake Tahoe CA Prepared for City of South Lake Tahoe Engineering Division Final Technical Report August 15 2008 2NDNATURE 2009a Lake Tahoe PLRM Database Refinement Phase Monitoring Plan July 2009 2NDNATURE 2009b BMP Maintenance Rapid Assesment Methodology Technical Document and Users Manual Lake Tahoe CA Prepared for the Army Corps of Engineers September 2009 ftp www 2ndnaturellc com 2ndnature 2NDNATURE Reports Lake 20Tahoe BMP 20RAM 2NDNATURE 2009c Lake Tahoe PLRM Database Refinement Phase Technical Report Draft Product submitted to Pollutant Load Reduction Model Project Advisory Committee December 2009 City
186. nstrument is placed on HOLD and is unavailable for use until the specifications are attained This is indicated by a HOLD sticker placed on the instrument The instrument logbook shall document the HOLD status of the instrument and the effective dates Should an instrument be found to be out of calibration all data obtained subsequently to the last successful calibration is evaluated by the Group Leader and appropriate corrective action is taken as deemed necessary Instrument calibration typically consists of two types initial calibration and continuing calibration Initial calibration procedures establish the calibration range of the instrument and determine instrument response over that range Typically three to five analyte concentrations are used to establish instrument response over a concentration range A blank must be analyzed as well as a calibration check for verification The calibration curve must meet the linearity requirements of the method which are listed by method in appendix E and described in the standard operating procedures If a linear regression is used the coefficient of variation CV should be no less than 0 995 The concentrations of standards used for calibration must be appropriate for the samples to be analyzed Samples more concentrated than the highest standard are diluted to the working range of the curve Drinking water analyses must include a low calibration standard at the reporting level concentration
187. nt outlet RPSOUT 51 CONNECTION TO ROCKY POINT NORTH BASIN gt RPSC PSs lt gt RPSC 52 connecting pipe ee ss d3N9IS3G E BLUE Lakes BASIN UA Water Quality Volume _ _ _ 5 l y BLIN PS3 bypass outlet BLOUT2S2 3 5 BLIN_PS2 BLOUT PS4 treatment outlet BLIN 54 BLOUT PS1 In et BLIN PS1 LEGEND Cc Conveyance Structure Note Schematics drawn to show relative elevation within each SWT Horizontal dimension is not drawn to scale x lt gt Passive Sampler TEL 881 426 9119 9 831 421 9023 CROSS SECTION SCHEMATICS OF SWT SAMPLE COLLECTION FIGURE 2 14 wuww 2ndnaturellc com WINTER 2010 PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 37 Due to resource limitations not all SWTs can be simultaneously instrumented with Sigma Automated Samplers at the inlet and outlet Currently Osgood Basin is the only SWT with automated samplers at both the inlet and outlet This equipment has been installed by CSLT and will be used to compare and correlate the data collected by the passive samplers Due to cost restrictions automated samplers are currently not installed at any of the other SWTs however 1 3 samplers may be available from CSLT If these instruments are provided selection of the appropriate monitoring locations will be determined with input from the TAC Cartridge Filter PLRM Modeling of Cartridge Filter PLRM
188. nt s approval to restart the method For cases where suspension of the method was imposed by QA QA sign off is required prior to reinstatement of the affected method The Laboratory Director and Group Leaders are responsible for correcting out of control situations placing highest priority on this endeavor 2 4 2 Corrective Actions on Analytical Reports The product or material that WETLAB provides to its clients are the completed analytical reports If an out of tolerance condition error is discovered the affected areas are identified and segregated when possible The department must determine the extent to which any analytical data may have been affected by the out of tolerance condition Documentation of this may appear in the case narrative report cover letter corrected report whichever is appropriate Several key areas within the laboratory may be affected If the analytical results are affected the department group leader issues a corrective report and if appropriate a case narrative may be included 2 4 3 Client Complaints and Concerns 13 3 0 WETLAB Quality Assurance Plan Revisian Date Apr 2007 Original Date May 2002 Revision No 4 The President and Lab Director are responsible for directly dealing with client complaints about data quality or incompleteness of data reports The QA Manager or Lab Director is responsible for initiation of any required formal corrective actions PERSONNEL TRAINING AND CE
189. nto the road to ensure native material is collected o 100mL of dry material samples will be collected for submission to Cooper Testing Laboratory for grain size distribution following proper handling protocols 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan p 14 Pervious road surface samples will initially be collected one time to ground truth our current assumptions on the potential FSP generation risk associated with erodible road shoulders Depending upon results from the initial data collection additional samples may be collected and or the technique may be modified Controlled Urban Road Experiments See Protocol B 2NDNATURE 2009 designed and fabricated a portable simulator that applies a standardized volume of water at a constant intensity over a controlled area of an urban road surface Figure 2 4 The runoff experiment design meets the following needs e Ability to sample over 30 Lake Tahoe urban roads using 2 field personnel in 3 days e In order to remain cost effective the road evaluations which include the controlled experiments should take no more than 30 minutes to complete per road segment e Aminimum of 600 mL of volume must be recovered from the simulation for proper analysis and QA QC by the analytical laboratory e Consistently sample a number of urban roads while keeping water application rate intensi
190. o 200 sieve is determined by sieving while the distribution of particle sizes smaller than 75 um is determined by a sedimentation process using a hydrometer to secure the necessary data Note 1 and Note 2 Note 1 5 may be made on the No 4 4 75 mm No 40 425 um No 200 75 um sieve instead of the No 10 For whatever sieve used the size shall be indicated in the report Note 2 Two types of dispersion devices are provided 7 a high speed mechanical stirrer and 2 air dispersion Extensive investigations indicate that air dispersion devices produce a more positive dispersion of plastic soils below the 20 um size and appreciably less degradation on all sizes when used with sandy soils Because of the definite advantages favoring air dispersion its use is recommended The results from the two types of devices differ in magnitude depending upon soil type leading to marked differences in particle size distribution especially for sizes finer than 20 um 2 Referenced Documents 2 ASTM Standards D 42 Practice for Dry Preparation of Soil Samples for Particle Size Analysis and Determination of Soil Con stants E 11 Specification for Wire Cloth Sieves for Testing Pur poses E 100 Specification for ASTM Hydrometers 3 Apparatus 3 Balances A balance sensitive to 0 01 g for weighing the material passing a No 10 2 00 mm sieve and a balance sensitive to 0 1 of the mass of the sample to be
191. of South Lake Tahoe 2007 Monitoring Plan for Keller Canyon Drainage Erosion Control Project October 31 2007 nhc et al 2009a Northwest Hydraulic Consultants Geosyntec Consultants and 2NDNATURE 2009 PLRM Model Development Document Prepared for Lake Tahoe Basin Storm Water Quality Improvement Committee South Lake Tahoe CA Available for download as well as full source code and other supporting documents from www tiims org nhc et al 2009b Northwest Hydraulic Consultants Geosyntec Consultants and 2NDNATURE 2009 PLRM Users Manual Prepared for Lake Tahoe Basin Storm Water Quality Improvement Committee South Lake Tahoe CA Available for download as well as full source code and other supporting documents from www tiims org Rosgen D 1996 Applied River Morphology Lakewood Co Wildland Hydrology 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com Lake Tahoe Pollutant Loading Reduction Model PLRM Database Refinement Final Phase II Monitoring Plan Protocols Field Datasheets amp Appendices Prepared for USDA Forest Service Pacific Southwest Research Station July 2010 This research was supported through a grant with the USDA For est Service Pacific Southwest Research Station and using funds provided by the Bureau of Land Management through the sale of public lands as authorized by the Southern Nevada Public Land Management Act http www fs fed us psw p
192. ommercial multi family residential single family residential to address the land uses represented in PLRMv1 e Include both pervious and impervious surfaces to allow dry material sampling and controlled experiments consistent with the urban road monitoring and e Represent typical Lake Tahoe Basin native soils of both granitic and volcanic origin to evaluate the potential fine sediment particle distribution differences generated from land uses The total number of sites selected will depend upon a balance between cost effectiveness and the likely value of the data collection results The research team will characterize each site including sampling area native soil type based on existing USGS soil mapping and presence absence of private party pollutant source control and or 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 18 hydrologic source control implementation Field personnel will conduct monitoring on both the impervious and pervious surfaces at each site For the impervious surfaces visual observations dry sampling and controlled experiment protocols at each monitoring site will remain consistent with those performed on the urban roads Phase data collection efforts 2NDNATURE 2009c included 2 impervious commercial sites RSLT and RIV in Table 2 1 and provided comparable results across urban land use types Impervious
193. onmental Monitoring and Support Laboratory Cincinnati Ohio August 1980 ibid Methods for the Determination of Organic Compounds in Drinking Water EPA 600 4 88 039 Environmental Monitoring and Support Laboratory Cincinnati Ohio July 1991 ibid Methods for the Determination of Organic Compounds in Drinking Water Supplement EPA 600 4 90 Environmental Monitoring and Support Laboratory Cincinnati Ohio August 1992 ibid Methods for the Determination of Organic Compounds in Drinking Water Supplement ll EPA 600 R 92 129 Environmental Monitoring and Support Laboratory Cincinnati Ohio April 1990 and updated September 1992 and March 1997 ibid Manual for the Certification of Laboratories Analyzing Drinking Water 4 Edition EPA 57 9 90 008 Environmental Monitoring and Support Laboratory Cincinnati Ohio April 1990 and updated September 1992 and March 1997 ibid Test Methods for Evaluating Solid Waste SW 846 3 Edition Office of Solid Waste and Emergency Response Washington DC September 1986 and updated September 1994 Standard Methods for the Examination of Water and Wastewater 19 Edition APHA AWWA WPCF Washington DC 1995 Hach Chemical Company Hach Handbook of Water Analysis Loveland Colorado 1979 Code of Federal Regulations Appendix A to Part 136 Methods for Organic Chemical Analysis of Municipal and Industrial Wastewater 40 CFR Part 136 1996 Prior to implementing new procedures analys
194. ons in temperature from this standard temperature produce inaccuracies in the actual hydrometer readings The amount of the inaccuracy increases as the variation from the standard temperature increases 7 1 2 Hydrometers are graduated by the manufacturer to be read at the bottom of the meniscus formed by the liquid on the stem Since it is not possible to secure readings of soil suspensions at the bottom of the meniscus readings must be taken at the top and a correction applied 7 1 3 The net amount of the corrections for the three items enumerated is designated as the composite correction and may be determined experimentally 7 2 For convenience a graph or table of composite correc tions for a series of 1 temperature differences for the range of expected test temperatures may be prepared and used as needed Measurement of the composite corrections may be made at two temperatures spanning the range of expected test temperatures and corrections for the intermediate temperatures calculated assuming a straight line relationship between the two observed values 7 3 Prepare 1000 mL of liquid composed of distilled or demineralized water and dispersing agent in the same propor tion as will prevail in the sedimentation hydrometer test Place the liquid in a sedimentation cylinder and the cylinder in the constant temperature water bath set for one of the two temperatures to be used When the temperature of the liquid becomes constant insert
195. ood Basin Park Avenue Upper and Lower Basins and the Stormfilter Vault The 2 wet basins 1 dry basin and 1 cartridge filter had been previously instrumented and monitored by the 2NDNATURE team which limited the need for extensive site reconnaissance prior to instrumentation improved data collection and analysis efficiency by building upon previous knowledge and provided cost sharing opportunities with other monitoring agencies The SNPLMA funding will allow for the continuation of monitoring at the existing 4 SWTs plus the expansion of monitoring efforts to include an additional 5 SWTs Detailed surface water hydrology monitoring and water quality sample collection will be conducted at 4 additional SWTs To date 2 dry basins Blue Lakes Basin and Rocky Point South Basin have been selected and are currently instrumented Surface water hydrology monitoring only will be conducted at 3 SWTs Eloise Basin Wildwood North Basin and Coon Basin The concentration of sites in South Lake Tahoe will drastically reduce field personnel travel time during stormwater runoff events Figure 2 5 Osgood Basin Wet Basin Figure 2 6 Monitoring at Osgood Basin will build upon the 2NDNATURE 2009b monitoring and include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations Osgood Basin was selected by the research team for SWT monitoring because it is currently being monitored by the City of South Lake
196. or given hydrometer sedimen 1 030 84 30 114 60 65 tation cylinder values vary according to the hydrom 1 031 8 1 eter readings This distance is known as effective ee ps 1 033 7 6 depth see Table 2 1 034 7 3 T interval of time from beginning of sedimentation to 1 035 7 0 the taking of the reading min ipe ie G specific gravity of soil particles and 1 038 specific gravity relative density of suspending me z di 1 b d 1 000 f Il eal Values of effective depth are calculated from the equation ium value may be used as 1 or all practica L L 1 2 L VA 5 purposes where Note 14 Since Stokes law considers the terminal velocity of a single L effective depth cm sphere falling in an infinity of liquid the sizes calculated represent the L distance along the stem of the hydrometer from the top of the bulb to diameter of spheres that would fall at the same rate as the soil particles the mark for a hydrometer reading cm Lo overall length of the hydrometer bulb cm 15 2 For convenience in calculations the above equation Vs volume of hydrometer bulb cm and may be written as follows see Table 3 A cross sectional area of sedimentation cylinder cm Values used in calculating the values in Table 2 are as follows TABLE 1 Values of Correction Factor a for Different Specific For both hydiometers 151H and 1524 Gravities of Soil Particles L 14 0 cm Specific Gravity Corr
197. otection NDEP The latest versions of the PLRM software and supporting documentation area available for download at http www tiims org TIIMS Sub Sites PLRM docs downloads aspx The PLRM provides Lake Tahoe resource managers with a tool to compare urban stormwater quality improvement alternatives in an urban catchment based on the predicted load reductions of the pollutants of concern The PLRM estimates pollutant concentrations in urban catchments using two primary water quality algorithms Characteristic Runoff Concentrations CRCs and Characteristic Effluent Concentrations CECs These concentrations are multiplied by the predicted runoff volumes at either the catchment outlet using CRCs or the outlet of a stormwater treatment BMP SWT using CECs to estimate average annual pollutant loads for each modeled alternative water quality improvement project The priority limitation with respect to water quality algorithms in the initial version of the PLRM is minimal fine sediment particle FSP lt 16um stormwater data available to inform the PLRM CRCs and CECs The primary data sources used to inform PLRM v1 included previous Lake Tahoe stormwater quality monitoring datasets compiled and integrated from a variety of sources The available stormwater data was collected to meet a myriad of data collection goals and objectives and therefore does not perfectly align with the goals and objectives of the PLRM This research is intended to directly inform th
198. otocols within the Road Condition Evaluation protocols to ensure data collection is conducted safely accurately and completely Personnel Needed 2 field personnel 10 20 minutes per road segment Equipment Needed Rainfall Simulator Sampler includes metal frame tubing sprinkler nozzle 2L graduated cylinder 2 Charged 12V Batteries GeoTech Geopump 2 peristaltic pump Extra Pump Tubing Hach 2100P Portable Turbidimeter including clean vials wipe cloth cleaning drops calibration solutions manual Chem Wipes Rags Paper Towels Duct Tape Gorilla Tape Concrete Tape Silica Gel and Caulking Gun Plumber s Putty Leatherman Straight Edge Wire Brush 1x1 inside square Stopwatch 5 gallon buckets of water Cooler with ice Chain of Custodies Sample Bottles 1L wide mouth Nalgene HDPE Pipettes and Pipette Bulbs Propane Torch and Extra Propane Squirt Bottle marked at 250ml volume Bungees Carabiners Towel Allen Wrench Data Collection 1 Handle rainfall simulator sampler with care See Figure 2 in Sampling Plan as reference a Sampler can be rested on bottom or back edge so bottle end is up in air b Carry sampler by top bar or edge near bottle Avoid grabbing by sprinkler nozzle or pressure gage c DONOT grab sampler by the flexible metal edge of collection pan It is important that this is kept as smooth as possible with no kinks to ensure a good fit with the road surface d Bevery careful with the bottle li
199. ottle 3 Label sample analysis bottle as BLK1 with date and time collected Deliver samples and completed chain of custody to appropriate laboratory within stated holding times 7 days Keep a copy of chain of custody for records NO Optional Spot Turbidity Measurements Personnel Needed 1 field personnel 5 10 minutes per road segment Equipment Needed e Hach 2100P Portable Turbidimeter including clean vials wipe cloth cleaning drops calibration solutions manual e Chem Wipes Rags Paper Towels e Pipettes and Pipette Bulbs Data Collection 1 If there is runoff at the road segment spot turbidity measurements should be collected from the primary flow paths and from both road shoulders if there is runoff in each 2 Using pipette collect at least 100ml of volume from primary flow path 3 Measure sample turbidity following instructions in turbidimeter user manual A couple of notes a C d e f Always run 2 3 calibration tests prior to testing sample and record values Never touch the outside of the glass vial with fingers Use the black cloth provided Have at least 2 vials for samples one for cleaner samplers one for dirtier samples Rinse with sample prior to analysis to condition the vial Discard sample Throw out vials at the end of the sampling trip Record out of range samples as 1000NTU and submit those samples to lab for turbidity analysis ONONRTURE P som
200. owing steps to ensure a closed loop corrective action system Define the problem Assign responsibility for investigating the problem Determine a corrective action to eliminate the problem Assign and accept responsibility for implementing the corrective action Establish effectiveness of the corrective action and implement the correction Verify that the corrective action has eliminated the problem The initial responsibility to monitor the quality of a function or analytical system lies with the individual performing the task or test Quality indicators are evaluated against laboratory established or client specified QC requirements If the assessment reveals that any of the QC acceptance criteria are not met the analyst must immediately assess the analytical system to correct the problem When an acceptable resolution cannot be met and or data quality is negatively impacted the analyst wiil notify the Group Leader or Laboratory Director When the appropriate corrective action measures have been defined and the analytical system is determined to be in control or the measures required to put the system in control have been identified and scheduled the problem and resolution or planned action is documented on the appropriate form The QA Department has the authority to stop the analysis and to hold all analyses of samples affected by an out of control situation The method cannot be restarted without documentation leading to the QA Departme
201. ples in a dessicator and obtain gross weight to the nearest 0 1 mg Repeat the cycle of desiccating and weighing until the weight loss is less than 4 of the previous weight or less than 0 5 mg whichever is less Record weight in log book Determine true sample volume by filling sample container to previous volume mark with water Pour water into 1000mL graduated cylinder and record volume in log book QUALITY CONTROL 9 1 1 9 2 9 3 9 4 Set one blank per run Blank consists of 1000mL of DI water acidified with 2 mls of 1 1 The Blank recovery must be lower than the reporting limit or the source of contamination must be eliminated before continuing Analyze a Matrix Spike MS with each batch of 10 or fewer samples The spike is a standard purchased commercially at a concentration of 2 mg mL each SmL of the standard is added to 1 liter of client sample for a final concentration of 20 mg mL total Recovery should be 79 114 or corrective action must be taken Analyze a Laboratory Contro Sample LCS with each batch of 20 or fewer samples The control is a standard purchased commercially at a concentration of 2 mg mL each 5mL of the standard is added to 1 liter of reagent grade water acidified with 1 1 for a final concentration of 20 mg mL total Recovery should be 78 114 or corrective action must be taken Due to the quality control requirements of EPA 1664 the analyst shall confirm the accuracy of the analy
202. plus extra battery Extra adaptor port for computer with 9 pin serial port Instrument cable A C adapter to run computer off car if necessary Wrench tool to open PVC housing and during the winter season warm water to unfreeze open PVC housing 2 Tasks to do a Download data i Clean off instrument Remove debris organisms from around the probes ii Connect instrument to cable to computer Open Win Situ 5 Software if no response check cables assuring there is a tight connection with the computer iv If device is still not connecting click on Preferences on the top toolbar and select Comm Settings Select 9600 Baud rate and then click ok The instrument should connect at this Baud Rate Once the connection between the computer and instrument is made change the Baud rate back to 57600 iv Instrument should appear under connection In bottom right corner the two plugs inserted into each other indicates a connection v Click on Logging icon second from left Window will show active log indicated by an icon of a man jogging You must stop the active log in order to download the data Right click and select Stop Right click again and select Download choose to download all data vi View data to assure that instrument was working correctly and collected data for the full duration and collected all the required parameters during the deployment vi Downloaded data will be saved to My Data To access data cli
203. presentative of entire water column Set up bottles Install and align distributor arm Install full bottle shutoff device Connect to power source 2 Install area velocity sensor per instructions provided in instrument manual a b C Mount device Consider the following e Sensor should be installed in area of uniform flow with minimal turbidity e Sensor should be installed where channel area can be confined e Sensor and sampler must be in close proximity for proper connection Connect to power source Connect to sampler 3 Program and calibrate area velocity meter per instructions provided in instrument manual Level in feet Velocity in feet per second Flow as liters per second 15 minute intervals Submerged area velocity Enter appropriate channel criteria to calculate flow 4 Secure housing with lock QNONATURE B ecosystem Fa SCIENCE DESIGN Monthly Maintenance Personnel Needed 1 field personnel 1 2 hours to download data calibrate and maintain instruments Equipment Needed e charged computer appropriate instrument cables extra computer battery calibration materials camera field notebook pens pencils instrument logs instrument batteries if replaceable Monthly Maintenance 1 Connect flow meter to field computer per instrument operations manual a Download data to computer Check data to ensure there are no data gaps and the data seems accurate Recalibrate sensor as necessary
204. put data on the drainage conditions for the catchment s draining to each SWT to simulate runoff in the PLRM Input data will be derived from planning documents construction plan sets GIS resources Google street view and reconnaissance level field investigations 3 Using PLRM generate and evaluate information on the performance of each SWT In particular interpret the hydraulic capture of each SWT facility to improve understanding regarding the function of the SWT Assess the function of each SWT relative to the methods locations and timing of water quality monitoring data collection efforts 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 39 4 Using PLRM models and collected monitoring data complete a preliminary assessment of the potential effects that variable hydrology and SWT hydraulics have on CECs Develop approaches that can be used in a subsequent effort potential USACE funded effort to directly predict water quality treatment performance of individual storm water runoff events at each SWT Note that PLRM models will not be used in this study to directly predict water quality treatment performance of individual storm water runoff events at each SWT This type of analysis would require significantly more work than proposed to estimate antecedent conditions in the drainage catchment s and SWT facilities 2NDNATURE
205. r Drive PO Box C700 West Conshohocken PA 19428 2959 United States Ally D 422 3 4 5 Chrome Plated 63 2002 C No 18 8W Go 0 049 Punch 0 203 0 001 a b Metric Equivalents in 0 001 0 049 0 203 1 2 3 4 mm 0 03 1 24 5 16 12 7 19 0 FIG 1 Detail of Stirring Paddles 2750 Note 6 A set of sieves giving uniform spacing of points for the graph Removable Baffle Permanent Baffle Rods Baffle Location Plan 60 I 26 dam Metric Equivalents in 1 3 2 6 3 75 mm 33 66 95 2 FIG 2 Dispersion Cups of Apparatus marked for a volume of 1000 mL The inside diameter shall be such that the 1000 mL mark is 36 2 cm from the bottom on the inside 3 5 Thermometer A thermometer accurate to 1 F 0 5 C 3 6 Sieves A series of sieves of square mesh woven wire cloth conforming to the requirements of Specification E 11 A full set of sieves includes the following Note 6 3 in 75 mm No 10 2 00 mm 2 in 50 20 850 11 2 in 37 5 mm No 40 425 um 1 in 25 0 mm No 60 250 34 in 19 0 mm 140 106 e in 9 5 mm No 200 75 um No 4 4 75 mm as required in Section 17 may be used if desired This set consists of the following sieves 3 in 75 mm No 16 1 18 mm 11 in 37 5 mm 30 600 34 19 0 mm 50 300 e in 9 5 mm No 100 150 No 4 4 75 mm
206. r data collection effort funded by SNPLMA Round 9 will build upon the initial datasets for urban roadways and SWTs 2NDNATURE 2009c in order to address the priority data gaps and test key assumptions within the current suite of Lake Tahoe urban stormwater tools Specifically SNPLMA data collection will 1 Expand and apply the urban road monitoring dataset to a Test refine the PLRM Road Methodology assumptions regarding the role urban road factors may have on urban roadway water quality condition b Inform PLRM estimates of the total TSS and fine sediment particles FSP TSS lt 164m CRCs from roads varying in condition with inclusion of soluble reactive phosphorous SRP analyses as resources allow c Improve the breadth and quality of urban stormwater data on the generation fate and transport of TSS and FSP as well as SRP where resources allow and d Collect focused and controlled data from urban roads to inform and improve the Road RAM tool 2 Apply cost effective and comparable sampling techniques to increase our understanding of FSP generation from other urban land use types including commercial and residential surfaces and their variability of condition 3 Expand and apply the SWT monitoring dataset to a Improve the understanding of water quality treatment performance specifically with respect to primarily FSP and SRP as resources allow based on SWT type and key design parameters b Inform and improve the PLRMv1
207. re sented by the mass of soil used as calculated in 14 2 and the result divided by 100 16 2 Calculate next the total mass passing the No 200 sieve Add together the fractional masses retained on all the sieves including the No 10 sieve and subtract this sum from the mass of the total sample as calculated in 14 2 16 3 Calculate next the total masses passing each of the other sieves in a manner similar to that given in 12 2 16 4 Calculate last the total percentages passing by dividing the total mass passing as calculated in 16 3 by the total mass of sample as calculated in 14 2 and multiply the result by 100 17 Graph 17 1 When the hydrometer analysis is performed a graph of the test results shall be made plotting the diameters of the particles on a logarithmic scale as the abscissa and the percentages smaller than the corresponding diameters to an arithmetic scale as the ordinate When the hydrometer analysis is not made on a portion of the soil the preparation of the graph is optional since values may be secured directly from tabulated data 18 Report 18 1 The report shall include the following 18 1 1 Maximum size of particles 18 1 2 Percentage passing or retained on each sieve which may be tabulated or presented by plotting on a graph Note 16 18 1 3 Description of sand and gravel particles 18 1 3 1 Shape rounded or angular 18 1 3 2 Hardness hard and durable soft or weathered and friable
208. re equal and the answer for either flow path is yes record YES BEYOND PRIMARY FLOW PATH Road RAM Datasheet Row 4 a Examine area beyond primary flow path Record answers Yes No to following questions concerning primary flow path on field datasheet b Arethere impervious surfaces e g sidewalks bike paths beyond the primary flow paths If flow paths are equal and the answer for either side of road is yes record YES c If answer to above is NO move to Datasheet Row 5 If answer to above is YES are these areas accessible by a road sweeper If flow paths are equal and the answer for either side of road is no record NO d lf answer to above is YES move to Datasheet Row 5 If answer to above is NO is there non native material i e road abrasives accumulation in these areas If flow paths are equal and the answer for either side of road is yes record YES e lf answer to above is NO move to Datasheet Row 5 If answer to above is YES can a handful or more of material be collected in a 1 sq ft area If flow paths are equal and the answer for either side of road is yes record YES Dry Material Sampling CNDNATURE _ Personnel Needed 1 field personnel 10 15 minutes per road segment Equipment Needed 1 x 1 Square with Plastic Sheet Dust Pan Hand Broom Graduated Cylinders 10ml 100ml 1000ml Wire Brush Hard Edge Spray Bottle Camera Funnel Bucket Ziplocs Paper Towels Rags Chain of Custody
209. remade as necessary Values showing a trend over time may be an indication of a deteriorating standard or instrument malfunction A method exhibiting a bias of seven consecutive points above or below the mean is considered out of control and corrective action must be taken Any out of control situation should be brought to the attention of the group leader and or the QA Manager New cumulative contro limits are generated and maintained in each department on an annual basis Expression of Results An integral part of producing quality data is reporting the data in the units applicable to the method used and the matrix analyzed It is imperative that the correct units and or conversion factors be used to ensure that the final result is not misleading Units versus method and matrix should be checked at each step of the review process Any errors detected should be reviewed with the group leader or analyst to determine the correct result and units Significant Figures A primary objective in reporting analytical data is to present the data so it may be interpreted properly with reference to the accuracy of the analytical method used To avoid ambiguity in reporting results or in presenting directions for a procedure it is necessary to use significant figures All the digits in a reported result are expected to be known definitely except the last digit which may be in doubt Such a number is said to contain only significant figures If more t
210. rence materials up to date Is lab equipment properly maintained and maintenance documented Are preventative maintenance procedures documented Are instrument run logs maintained and signed off by the supervisor Are instrument operating manuals available to the analyst Are calibration records kept for equipment Are standards traceable to NIST or EPA standards Are fresh standards prepared at a frequency consistent with good QC Are standard preparation logs maintained 55 m a Audited by lt gt WETLAB Quality Assurance Flan Ravision Date Apr 2007 Original Date May 2002 Revision No 4 Comments ETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision No 4 QA QC Procedures Are instrumentation gas logs maintained Are standards properly labeled with concentrations date of preparation expiration date and person who prepared the reagent Are all hoods functional hood flow monitored and documented 15 the pH meter calibrated daily with two buffers in the range of interest Is fresh buffer used daily Are the conductivity meters calibrated with 0 01M KCI before each use Is the analytical balance calibrated with a set of class S or S1 weights quarterly Have the S class weights been calibrated within the past three ears Are refrigerator temperatures monitored daily with an accurate thermometer Are incubator temperatures monitored daily with
211. reported data are of known and documentable quality but also that the quality reflects the degree of excellence expected and demanded by WETLAB personnel and clients Quality indicators for the effectiveness of these monitoring systems include both internal and external audits and or surveillances to measure performance against established criteria for good laboratory practices When evaluation of these quality indicators shows an unsatisfactory condition affecting the quality of services provided a Corrective Action Report CAR must be initiated Immediate corrective action to correct or repair non conforming equipment and systems 15 generally initiated as the result of QC procedures An analyst will know immediately for example that an instrument has drifted out of calibration if it does not meet the allowable QC criteria and can take immediate action to repair the system Corrective action may also be initiated due to QA issues These are most often identified during audits Corrective action in this case involves an investigation into 12 WETLAB Quality Assurance Plan Revision Dale Apr 2007 Original Dale May 2002 Revision No 4 the root cause of the non conformance and may take much longer to identify and resolve Staff training SOP revision replacement of equipment and LIMS reprogramming are among the many types of long term corrective action that may result from a QA audit All corrective actions will comprise the foll
212. retation of the precision and or accuracy of an analytical method Control charts enable the analyst to detect a trend or bias in a procedure at the time the analysis is performed The ability to identify a deviation in the performance of a method may prevent the need for reanalysis later or be an indication of impending instrument malfunction When used correctly and consistently control charts provide a means of validating analytical methods 31 WETLAB Qualily Assurance Plan Revision Date Apr 2007 Original Dale May 2002 Revision Na 4 The applicability of control chart techniques is based on the assumption that the laboratory data approximates a normal distribution The chart for standards is constructed from the target and standard deviation of a standard It includes upper and lower warning levels WL and upper and lower control levels CL Common practice is to use 2s and 3s limits for the WL and CL respectively where s represents standard deviation The chart can be set up by using either the calculated values or by using percentages Percentage is necessary if the concentration varies Control charting is performed using appropriate software The monthly values are entered for a standard or calibration check and are used by the system to generate the limits and mean of the control chart Each subsequent value emerged is plotted on the chart Values exceeding the control limits are unacceptable These standards are rerun or
213. riginal Date May 2002 Revision No 4 laboratory for same day shipment Sample bottles requested for pickup from the laboratory or delivery to a client or site contain the necessary preservatives noted on the labels These containers are packaged to prevent shifting during transport is suggested that clients pack ice chests with sufficient wet ice to ensure that all sample containers stay in contact with ice in the ice chest Chain of Custody Procedures In order that an analytical process is legally defensible it must follow a chain of custody procedure When sample containers are supplied by the laboratory a COC form accompanies each set to begin the tracking process Samples seals and tags are available on request Upon return to the laboratory the form is checked for completion and cross checked against the samples submitted Any discrepancies are immediately resolved with the client The COC form is signed dated and time noted by the party relinquishing the samples The form is signed and dated by laboratory sample receiving personnel to complete the transfer The original is retained in the client file until released with the final report The form also includes the following information identification of tests to be performed on each sample sample matrix and laboratory sample identification numbers The samples are now in the custody of the laboratory where they are stored in a controlled storage area until disposal occurs Acces
214. rument has its own maintenance log that is used to document ail maintenance activities performed on the instrument REAGENT STANDARD AND PROCUREMENT CONTROL At the center of all analytical procedures are the reagents chemicals stock cultures and other materials The quality of these items is directly related to the quality of the data produced To ensure that our analysts are using the most current reagents and chemicals our laboratory has a cross check system that begins with purchasing and continues through disposal This system provides minimum standards to ensure our analytical results are not compromised 6 1 Purchasing It is the responsibility of each analyst to ensure that all depleted reagents chemicals and materials in his her area are ordered correctly and in a timely manner so there is always a sufficient supply The request is written on a Purchase Order form P O and submitted to the Laboratory Director for final written approval Following final approval the purchasing agent assigns a sequential purchase order number from the P O log to the request and places the order A copy of the purchase order is given to shipping and receiving The quoted prices from the vendor are verified then each P O is filed in numerical order in the Purchase Order file When the materials are received the packing list is compared with the purchase order by the shipping and receiving personnel If all packing slips invoices and prices are corre
215. ry Accreditation Conference NELAC Quality Systems document QUALITY POLICY The objective of WETLAB is to produce the highest quality data which is accurate precise legally defensible and meets our client s data requirements in a timely and cost effective manner The Quality Assurance program provides guidelines and rules to ensure that all data produced meets or exceeds WETLAB standards The quality control program of the laboratory ensures the maintenance of the controlled analytical processes The quality assessment program incorporates all the necessary elements to ensure that the quality control system is functioning effectively Implementation of the quality assurance program is based on documentation of all aspects of the program validation and statistical control and periodic verification and inspection WETLAB is committed to continuous improvement and to providing analytical services that are of the highest quality WETLAB believes that client satisfaction is the most important service our employees can provide 1 0 WETLAB Qualify Assurance Plan Revision Date Apr 2007 Original Dale 2002 Revisian No 4 LABORATORY ORGANIZATION AND MANAGEMENT 1 1 1 2 Organizational Charts The organization of WETLAB including QA and reporting functions is shown in Figure 1 1 1 Management Responsibilities Professional qualifications and experience of the individuals filling these positions are maintained and resum
216. ry duplicates and external standards Table 3 2 URBAN ROAD CONTROLLED EXPERIMENT SAMPLES For samples collected during the controlled experiments field personnel will submit the 1L samples see Protocols B F and G directly to WETLab for analysis Once per sampling period a field triplicate and a field blank will be submitted and analyzed by the laboratory ADDITIONAL LAND USE CONTROLLED EXPERIMENT SAMPLES For samples collected during the controlled experiments on impervious surfaces field personnel will submit the 1L samples see Protocols B F and G directly to WETLab for analysis Once per sampling period a field triplicate and a field blank will be submitted and analyzed by the laboratory SWT PASSIVE SAMPLER SAMPLES For SWT samples collected from the passive samplers field personnel will submit the 1L sample see Protocols E F and G directly to WETLab for analysis Once per event a field replicate will be analyzed by the laboratory by splitting a passive sampler sample into two equal sample volumes SWT GRAB SAMPLES For SWT grab samples collected from outflow from the treatment outlet field personnel will submit the 1L sample see Protocols F G and 1 directly to WETLab for analysis Once per sampling event a field replicate will be submitted and analyzed by the laboratory 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase
217. s monitoring goals and objectives site selection justification detailed instrumentation and field monitoring protocols sample QA QC requirements and data management specifications The Phase data collection effort was limited extending from December 2008 through July 2009 and the PLRM Technical Advisory Committee PLRM TAC is currently reviewing the draft Phase Technical Report 2NDNATURE 2009c The greatest value of the ACOE effort was the initiation of a focused and cost effective data collection data management and data analysis strategy to begin to directly inform PLRM and the supporting stormwater rapid assessment tools BMP RAM and Road RAM This SNPLMA funded Phase Il Lake Tahoe PLRM Database Refinement Monitoring Plan builds directly upon the Phase I research effort and the monitoring project schedule is provided in Table 1 1 Urban road and SWT monitoring methods and protocols will be implemented through the Spring of 2011 to expand the dataset and continue to improve the science underlying the current versions of the Lake Tahoe urban stormwater management tools This document provides the rationale and details the data collection protocols that will be implemented by the 2NDNATURE team to achieve the goals of Phase 11 of the PLRM Database Refinement Study The final product will be a technical report that synthesizes the data collection provides analysis of key findings and presents potential recommendations for refinements to the PLR
218. s of average annual infiltration rates which include completely saturated conditions of all surrounding soils Building upon the existing Lake Tahoe SWT data collection strategies employed to improve PLRM CECs the researchers will expand the monitoring of continuous water budgets of specific SWTs to develop an empirical correlation between average annual infiltration rates and the instantaneous manual CHP measurements obtained within the SWT during dry conditions The results will provide direction to PLRM users on how to translate measurable CHP values into the PLRM input requirement of an average annual infiltration rate Infiltration rates are a key design parameter input into PLRM for dry basins infiltration basins and bed filters Infiltration rates will be calculated as part of the continuous surface water hydrology budget throughout the monitoring study and therefore can be directly linked to event specific treatment performance and existing SWT condition as determined by BMP RAM The variability in measured infiltration rates will be used to link observed SWT treatment performance with respect to FSP and SRP to the differences in both SWT design and maintenance This data will be used to improve PLRM CEC loading estimates 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase Monitoring Plan 5 GOALS SNPLMA DATA COLLECTION The urban stormwate
219. s to Management iii 10 so nuq eof chests Ss 10 2 0 M EU IP AUCIS 10 2 0 2 TS re 11 2 3 3 Management Review l 11 2 3 4 Performance Evaluation Audits sisi 12 24 6 25 12 2 4 1 Corrective Actions from Internal Indicators 12 2 4 2 Corrective Actions on Analytical Reports esee 13 2 4 3 Client Complaints and Concerns 4 04 8 eene nennt 14 3 0 PERSONNEL TRAINING AND CERTIFICATION eere 6100 14 3 1 Administrative Procedures vorov nsn sasana 14 3 2 Laboratory Quality Assurance 0 14 3 3 Health amp Safety Orientation and Training iii creer 14 34 Procedure WAMU c 14 3 5 Initial Demonstration of Performance Method Validation 15 3 6 Training Qualifications Documentation erem 15 4 0 LABORATORY FACILITY u Dt tasses ons eat ns 15 9 0 INSTRUMENT CALIBRATION VERIFICATION AND 4 15 3 1 Instrument s
220. s to the storage area is limited to laboratory personnel All samples remain in the storage area when not in use Any aliquots of the original samples that are digested or extracted are retained in the designated prep areas for analysis Samples transferred to another laboratory are transferred under chain of custody A copy of the completed chain of custody form is maintained in the laboratory project file Samples are not subcontracted to another laboratory without client approval sample Disposal It is necessary for the safety of all individuals in the laboratory and compliance with DOT and NRC regulations that all laboratory waste be handled appropriately In an effort to minimize exposure of laboratory personnel to extremely hazardous materials hazardous samples are returned to the client for disposal The sample storage area s is routinely purged of expired samples Expiration is determined by holding time or a laboratory imposed date of thirty days following release of the final report unless otherwise directed by the client Samples are segregated by matrix type and placed in the appropriate disposal container for transport All clean water samples are flushed to the sewer with abundant quantities of water The final disposal site of hazardous materials is determined by the contracted waste disposal company All containers transported are manifested in accordance with DOT regulations A copy of the manifest analytical results and
221. saturated soil conditions Additionally if resources permit discrete soil samples and CHP measurements will be conducted during more frequently than annually to develop and improve the relationship between what can be measured rapidly and cost effectively CHP measurements and the PLRM user input requirements PLRM MODEL DEVELOPMENT PLRM models will be developed to estimate performance among the SWTs being monitored for water quality by 2NDNATURE Modeled performance estimates will be compared and evaluated against monitored performance estimates to allow for better interpretation of monitoring data to validate and or modify PLRM CECs Modeled estimates of key performance metrics such as hydraulic capture will allow the 2NDNATURE team to estimate the frequency and magnitude of storm events that cause bypass to occur at each SWT which is a key consideration when developing improved CECs based on the monitoring data collected from this study This task involves developing 5 PLRM models one for each SWT facility monitored for water quality which includes 1 Osgood Basin 2 Upper and Lower Park Avenue Basins 3 Rocky Point South Basin 4 Blue Lakes Basin and 5 Ski Run StormFilter Vault PLRM model development as part of this study will include the following tasks 1 Derive design parameters necessary to simulate each SWT facility in the PLRM from field surveys completed by 2NDNATURE and reconnaissance level field investigations 2 Develop in
222. sediment sampling at each site The field crew consisting of 2 3 trained personnel evaluates the road segment condition during urban road sampling to document road condition Road condition will be determined by both visual observations and dry material collection and validated by the wet sample results At road segments characterized with erodible road shoulders field personnel will collect additional dry material samples from the pervious portion of the road shoulder to evaluate any sampling bias introduced by conducting controlled experiments only on the impervious areas of the road segment Field personnel safety is the priority at any road segment site Hazard cones are placed to surround the sampling location and field personnel Field personnel must wear hazard vests and be acutely aware of traffic conditions at all times Sampling locations and visual observations will be dictated by both field personnel safety and minimization of disturbance or distractions to motorists 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com A 1 300 000 Road Risk of Road Segment A High A Moderate A Low qaN9lSad 2NDNATURE LLC TEL 831 426 9119 wuww 2ndnaturellc com FAH 831 421 9023 Road Segment Sampling Sites by Jurisdiction and Primary and Secondary Road Risk as calculated September 2009 High Mod k meme 3 Leme ppp City of South Lake Tahoe
223. segment metadata collected during initial road segment characterization and note any changes on field datasheet CNDNATURE _ 2 Record date field personnel initials weather cloudy rainy sunny and estimate number of days since last precipitation event 3 Note any evidence of recent road abrasive application and or road sweeping a Potential signs of road abrasive application e Presence of rounded non native particles and or abrasives in road shoulder flow path b Potential signs of road sweeping e Sweeper broom marks on road surface e Observe active sweeping in neighborhood during sampling 4 Record degree high moderate low of dustiness at road segment a High Visible thick dust in air especially obvious with passing traffic Vision is obviously impaired Lots of sneezing and eye irritation b Moderate Visible dust in air with traffic Vision slightly impaired Some sneezing and eye irritation c Low No visible dust in air with traffic 5 Estimate 96 of road segment per material accumulation category and determine level of fines per category a Determine locations and percent of each material accumulation category High moderate and low accumulation is determined specific to the road segment and is not relative to observations made elsewhere Every road segment will have some percentage of each of the 3 categories Relative percentage is based on the entire area of the road segment Observe percenta
224. side cylinder is downslope b Attach tubing to pump c Attach pump to battery Red is positive black is negative d Ensure pump direction is the same as from the pump to the sampler 5 Run rainfall simulation a One person stands on edges of collection pan to weight edges and improve sampler s seal to road surface NONATURE MY some can Turn on pump Begin timer when water starts coming out of sprinkler nozzle Monitor pressure to maintain 25 psi Adjust pump speed as necessary Watch water flow Using clean straight edge encourage water to flow into collection pan instead of pooling around tape With clean fingers press down on collection pan edge as necessary Stop timer when no more water comes out of sprinkler nozzle Duration should be around 2min 50sec 6 Collect sample a b C Scrape any sediment on tape into collection pan using clean straight edge If water is pooling around tape or in rainfall square use pipette to transfer water to bottle Person standing on sampler may have to stay in place to prevent seepage out the sides of sampler Two people are needed to lift sampler and transfer sample to bottle Field personnel safety is very important As personnel lift sampler they should move away from drive lane maintaining a safe distance from traffic as sample is recovered i Person 1 lifts sampler from back and holds vertically to transfer sample from collection pan to bott
225. sire Th pre e iri pini EILEEN orit 2 0 WETLAB Qualily Assurance Plan Revisian Date Apr 2007 Original Date May 2002 Revision No 4 QUALITY SYSTEMS 2 1 Quality Assurance Program The purpose of this laboratory QA QC Plan is to provide an overview of the quality systems in effect at WETLAB The QA program is documented by written policies and procedures The policies and practices of the quality system presented in this plan are set forth as minimums Additional quality measures may be required for specific projects The principle objective of the QA Program at WETLAB is to provide a product of documented quality which fulfills the requirements of each client s project The QA program was developed to follow the intent of the ISO IEC Guide 25 1990 General Requirements for the Competence of Calibration and Testing Laboratories and the National Environmental Laboratory Accreditation Conference NELAC Quality Systems manual Both laboratory management and clientele as means of reviewing analytical results for accuracy and reliability utilize the QA program The basic philosophy regarding quality as detailed in these documents has been used as a guideline for the development of the QA Program at WETLAB The Program addresses general activity in the following areas Laboratory Organization and Management Quality Systems Personnel
226. sonnel to select a location in a different accumulation category e To improve the sediment capture efficiency of both the dry material sampling and the controlled experiments field personnel will conduct dry material collection and controlled experiments on the same 1ft by 1ft square noting the material accumulation category of the location The square will first be swept to collect the dry material mass on the road surface following the protocols describe above Then the controlled experiment will be conducted to collect the smaller size particles not collected by the hand broom The double sampling of the road segment will more accurately measure the total sediment and associated pollutant concentration accumulated on the road surface e Awater volume of 750mL is be applied by the simulator and field personnel will monitor both water pressure and application time to maintain consistency across sampling 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com AIN9IS30 SIMULATOR IN ACTION IN THE FIELD site set up 15 E PORTABLE SIMULATOR FRONT VIEW 12V batteries simulation F a i p yum collection pan A id peristaltic pump ated cylinder NAM collection bottle transfer to collection b LED CNONATURE LLC TEL 831 426 9119 FA 831 421 9023 PORTABLE SIMULATOR USED IN CONTROLLED URBAN ROAD FIGU RE 2 4 EXPERIMENTS
227. sufficient to yield quantities for mechanical analysis as follows 5 1 1 The size of the portion retained on the No 10 sieve shall depend on the maximum size of particle according to the following schedule Approximate Minimum Mass of Portion g Nominal Diameter of Largest Particles in mm 9 5 500 34 19 0 1000 1 25 4 2000 1 38 1 3000 2 50 8 4000 3 76 2 5000 5 1 2 The size of the portion passing the No 10 sieve shall be approximately 115 g for sandy soils and approximately 65 for silt and clay soils 5 2 Provision is made in Section 5 of Practice D 421 for weighing of the air dry soil selected for purpose of tests the separation of the soil on the No 10 sieve by dry sieving and washing and the weighing of the washed and dried fraction retained on the No 10 sieve From these two masses the D 422 63 2002 percentages retained and passing the No 10 sieve can be calculated in accordance with 12 1 Notre 8 check on the mass values and the thoroughness of pulveri zation of the clods may be secured by weighing the portion passing the No 10 sieve and adding this value to the mass of the washed and oven dried portion retained on the No 10 sieve SIEVE ANALYSIS OF PORTION RETAINED ON NO 10 2 00 mm SIEVE 6 Procedure 6 1 Separate the portion retained on the No 10 2 00 mm sieve into a series of fractions using the 3 in 75 mm 2 in 50 mm 1 5 in 37 5 mm 1 25
228. t of material is present and therefore represents a downslope water quality risk during a subsequent runoff event Dry Material Collection Impervious Surface See Protocol A e Dry material samples will be collected from the heavy moderate and light material accumulation areas to represent the entire road segment o Dry material samples will be collected using a hand broom and wire brush from a 1ft by 1ft road surface area to measure the volume of material potentially available for subsequent transport o Volume will be measured by immediate transfer into a graduated cylinder and field personnel entered the measurements on field datasheets o Dry material samples will be converted to mass using an assumed density of 1 7 g mL for all samples o Most samples will be immediately discarded after measurements are recorded however a subset will be saved and submitted to Cooper Testing Laboratory following proper handling protocols Dry Material Collection Pervious Surface e Dry material samples will be collected from the pervious portion of the road shoulder at road segments characterized by an erodible or unstable road shoulder road shoulder condition score 1 or 3 o Visual observations of the relative degree of disturbance e g soil compaction and human traffic will be estimated for the length of the road shoulder o Field personnel will scrape the top 1 2 of material from the surface to remove any road generated material blown o
229. termine outflow frequency duration and volumes All instrumentation was removed in December 2005 Given the research team s knowledge of the site and the existing infrastructure instrumenting and monitoring Eloise Basin will be relatively efficient Wildwood North Basin monitoring will include surface water hydrology monitoring and SWT condition evaluations The Wildwood North Basin was selected for monitoring due to the significant volume of runoff routed to it the relative unlikelihood that local groundwater will significantly impact the basin s infiltration capability and its proximity to the previously instrumented 2NDNATURE 2009b SWTs see Figure 2 5 Wildwood Basin has been previously monitored by CSLT and receives runoff from at least 3 separate catchments including one inlet that receives runoff directly from Highway 50 a primary high risk road PHR maintained by Caltrans Coon Basin Dry Basin Figure 2 12 Coon Basin monitoring will include surface water hydrology monitoring and SWT condition evaluations Coon Basin has been previously surveyed by DRI and the research team will use this existing data to develop the stage to storage volume rating curve for the dry basin SWT Additionally Coon Basin can provide information concerning treatment performance factors outside of the south shore of Lake Tahoe 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com 99 91 3
230. ters and automated samplers to quantify the nutrient fine sediment and iron retention capability of the proprietary SWT from November 2001 to January 2004 The research team has determined the original cartridges in the Stormfilter were replaced in Summer 2008 CSLT pers comm 2009 Rocky Point South Basin monitoring will include event based surface water sample collection surface water hydrology monitoring and SWT condition evaluations The Rocky Point South Basin was selected because it has a classic design that allows for easy instrumentation and monitoring is unlikely to have significant groundwater impacts on infiltration and is in close proximity to the basins already instrumented for 2NDNATURE 2009b monitoring see Figure 2 5 The Rocky Point Basin watershed is a relatively small area dominated by urban land use As part of the Monitoring Study the contributing catchment will be characterized in GIS and include area land use characterization and impervious Additionally 2NDNATURE will research the design construction and monitoring history of the site and determine the key design parameters of the basin 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com qaN9lSad EP ce PA2 OUT _ 3 6234 95 2 6233 80 2 6233 78 1 6232 85 1 6232 86 va Depth Gage and Staff Plate Staff Plate Only Vertical Passive Samplers Flow Meter Flow Path
231. the case of summer thunderstorms that come with little warning there may be insufficient time to deploy the samplers prior to the beginning of the event While not a preferred method sample bottles can be deployed and remain in the field in preparation for summer thunderstorm sampling However if this technique is used the sample bottles in the field must be checked and cleaned twice weekly to minimize the potential contamination of material in the bottle prior to the occurrence of a runoff event Check condition of each mounting tube to ensure the sampler is properly and securely installed to collect stormwater runoff from catchment If there are any problems fix if possible If it cannot be fixed immediately or prior to runoff event describe problem on station visit log and report to project manager Housing should be fixed prior to any subsequent sampling to ensure the catchment runoff is being sampled properly Avoid contamination Place all materials on tarp while prepping station Rinse materials with distilled de ionized water as necessary Based on targeted pollutants of concerns install proper sampler HDPE or glass in mounting tube Depending on volume and field triplicate requirements more than one Storm Water Sampler may need to be deployed for an event Ensure stormwater runoff will be routed into the sampler s Remove any obstructions in flowpath and adjust installation as necessary Take photos Complete necessary i
232. the hazard Special care is taken in the handling storage and disposal of these samples The login staff laboratory personnel properly trained to handle samples of evidentiary nature are responsible for maintaining custody of the samples during the login and distribution processes and for assuring that all records documenting that possession are properly completed Samples that require refrigeration will not be allowed to warm to room temperature during the login and distribution processes The date time and sample integrity upon receipt is documented by the login staff After verification that all samples listed on the COC form are in possession the Received By Laboratory space on the COC is signed The samples are then placed in the secure sample storage area Standard Operating Procedure No 11 01 provides additional information regarding sample log in 22 8 2 WETLAB Quality Assurance Plan Revision Date Apr 2007 Original Date May 2002 Revision 4 procedures There are three major types of samples the laboratory accepts The procedure and required paperwork for each type are as follows 8 1 1 Analysis required for compliance with SDWA each sample must be submitted with a Chain of Custody COC The client must provide address system name PWS Public Water System ID sample date sample time collection point sample collector s name collection source type and sample type The sample collector should be the first p
233. the hydrometer and after a short interval to permit the hydrometer to come to the temperature of the liquid read the hydrometer at the top of the meniscus formed on the stem For hydrometer 151H the composite correction is the difference between this reading and one for hydrometer 152H it is the difference between the reading and zero Bring the liquid and the hydrometer to the other tempera ture to be used and secure the composite correction as before 8 Hygroscopic Moisture 8 1 When the sample is weighed for the hydrometer test weigh out an auxiliary portion of from 10 to 15 g in a small metal or glass container dry the sample to a constant mass in an oven at 230 9 F 110 5 C and weigh again Record the masses 9 Dispersion of Soil Sample 9 1 When the soil is mostly of the clay and silt sizes weigh out a sample of air dry soil of approximately 50 g When the soil is mostly sand the sample should be approximately 100 g 9 2 Place the sample in the 250 mL beaker and cover with 125 mL of sodium hexametaphosphate solution 40 g L Stir until the soil is thoroughly wetted Allow to soak for at least 16 h 9 3 At the end of the soaking period disperse the sample further using either stirring apparatus A or B If stirring apparatus A is used transfer the soil water slurry from the beaker into the special dispersion cup shown in Fig 2 washing any residue from the beaker into the cup with distilled or demineralized water
234. tical balance before pre weighing the aluminum evaporating tin and after the final weighing This is done by measuring the weight of certified 2 00g and 0 002g 2mg weights The weights should be accurate to 0 01g for the 2 00g weight and 0 0002g 0 2mg or corrective action must be taken 10 0 CALCULATIONS Oil and Grease mg L Flask final q Flask initial x 1 000 000 sample volume mL 110 REPORTING FORMAT Report results as mg L Western Environmental Testing Laboratory SOP NO 8 38 Rev NO 6 PAGE 5 OF 5 12 0 REFERENCES 12 1 12 2 EPA Methods for Chemical Analysis of Water and Wastes EPA 600 4 79 020 U S Environmental Protection Agency EMSL Cincinnati Ohio 45268 March 1983 Method 160 3 Improved Procedure with Optimized Prefilter in the Determination of n Hexane extractable Materials Oil and Grease for EPA Method 1664 Revision A CPI International Santa Rosa CA 95403 PLRM v1 Database Refinement FINAL Phase II Monitoring Plan APPENDIX B COOPER LABORATORY DOCUMENTATION 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com COOPER TESTING LABS STATEMENT OF QUALIFICATIONS ACCREDITATION Cooper Testing Labs has been inspected and accredited by AASHTO American Association of State Highway amp Transportation Officials The US Army Corps of Engineers and Caltrans for Geotechnical Laboratory testing TESTING PROCEDURES All testing at CTL is
235. tillation Unit Perkin Elmer Optima 4300 DV ICP Perkin Elmer Elan DRC e ICP MS CETAC M 6000A Mercury Analyzer 52 8 0 STATE CERTIFICATIONS WETLAS Quality Assurance Plan Revision Date Apr 2007 Original Date 2002 Revision No 4 WETLAB holds certifications in Nevada and California Following is a list of certifications which are current at the time of issuance of this document Agency Nevada California 9 0 PERFORMANCE EVALUATION STUDIES Analytes Microbiology SDWA inorganics CWA inorganics RCRA inorganics Microbiology SDWA inorganics CWA inorganics RCRA inorganics As part of an on going laboratory QA QC program WETLAB routinely participates in semi annual Water Pollution WP and Water Supply WS Performance Evaluation Studies and in round robin proficiency testing and laboratory certification programs conducted by the local and state agencies These studies are procured from a National Institute of Standards and Technology NIST accredited laboratory Performance Evaluation Stud Water Supply WS PE Study Water Pollution WP PE Study SOIL PE Study Bacteria Inorganics Alkalinity pH Phosphate Turbidity Nitrite Meials Coliform Bacteria Nutrients Demand Minerals Inorganics Nitrite Metals Ignitability Corrosivity Metals Semi annually Cyanide Frequenc semi annually semi annually 53 WETLAB Quality Assurance Pian Ravision
236. timate the height of the resulting dust cloud Height is estimated based on the body parts of the sweeper It is easiest if one person sweeps and the other field personnel records observations Record height ankles knee waist on field datasheet Estimate duration of time in seconds the dust cloud is visible Record of seconds on field datasheet Volume of material ml collected from 1 x1 square to nearest ml If value was less than 3 ml record as 3ml 4 At least one dry material sample is kept per road segment for laboratory analysis All other samples are disposed on site Typically moderate accumulation sample is kept or whichever accumulation category represents where the wet sediment sample is collected If sample is kept Transfer sample from graduated cylinder to Ziploc bag and securely close bag Label bag with Sample ID Date Time and Volume Place in larger Ziploc with other dry samples Complete chain of custody Samples are submitted for the following analyses a b C d Mass mg Particle Grain Size Distribution as of mass 1 lt 1 um lt 10 um lt 16 um lt 20 um lt 63 um lt 100 um lt 1000 um QUO QI I0 ONONRTURE m ECOSYSTEM SCIENCE DESIGN Controlled Urban Road Experiment Wet Sediment Sampling Overview Controlled urban road experiments are always conducted in conjunction with a Road Condition Evaluation Please review the Road Segment Site Set up and Safety Pr
237. times 2 soil map units or structural fill o A total of 9 measurements will be made for secondary roads 3 compaction levels times 3 soil map units or structural fill e Surface infiltration will be measured using a double ring infiltrometer and compared to Ksat measurements using the Constant Head Permeameter CHP designed by NRCS Compaction and soil resistance will be measured using a cone penetrometer e Ksat will be predicted for each road shoulder using PLRM and compared to field measured Ksat and surface infiltration rates Assuming the research confirms that current PLRM road shoulder algorithms are in need of improvement a second stage of research will be conducted to determine the key factors contributing to variability in road shoulder infiltration The results of the second stage of research will be used to develop guidelines for others to use when estimating road shoulder infiltration for input into PLRM Additionally the technical framework for incorporating improved road shoulder infiltration algorithms into the PLRM will be developed The second stage protocols include e probable factors contributing to variable Ksat will be identified based on insight gained from Task 1 2 e g sandy vs clayey soils volcanic vs granitic soils presence or absence of road structural fill primary vs secondary roads vegetation degree of compaction plugging of surface soils by fine sediments etc Upto 35 additional road shoulders
238. tion vie umb 31 3 1 Analytical Laboratory Sample Requirements per Analysis Type 41 32 Type and Frequency Of GA OC Samples uuu uu L uu uq a dr g a A PAR MURS RESUME este SARI ERR 42 LIST OF FIGURES 2 1 Urban Road Monitoring Data Collection Schematic ss 7 2 2 Urban Road Monitoring Road Segments OVErVieW cssccccsseccccseccceesececeeceeeeneceeeuseceseuseceesenecetseaeeeeees 9 2 3 Urban Road Segments South Shore A East amp North Shore B West Shore 10 2 4 Portable Simulator Used in Controlled Urban Road Experiments ss 15 2 5 SWT Monitoring Site Location Map r 21 2 6 Osgood Basin Monitoring 5 nennen eene nennen nennen snnt esses 22 2 7 Park Avenue Basins Monitoring Locations 24 2 8 Rocky Point South Basin Monitoring 5 02 nennen nenne 25 2 9 Blue Lakes Basin Monitoring Locations ccccccsseccccsecccesececesececeesececeuececeuececsunecessuseceseueecessenecetsuaeeetees 27 2 10 Eloise Basin Monitoring LOCAtIONS uu uuu uuu lu u saus Guau ama
239. tion of all critical basin features inlet s outlet s stage recorder staff plate etc Basin topographic data will be tied to continuous stage data to create a depth to volume rating curve and continuous basin storage volume time series The basin volume s at outflow will be determined using the depth to volume rating curve and surveyed outlet elevations The basin volume time series will be compared to outflow volume s and change in basin water storage will be used to create a detailed surface water budget and determine event seasonal and annual inflow and outflow volumes using the following equation Change in Storage volume Water Inputs volume Water Losses volume EQ1 where change in basin water storage at any one time is the net balance of inputs minus losses over the same duration Water inputs include all surface water runoff entering the SWT through constructed inlets and direct 2NDNATURE LLC 500 Seabright Avenue Suite 205 Santa Cruz CA 95062 p 831 426 9119 w 2ndnaturellc com PLRM v1 Database Refinement FINAL Phase II Monitoring Plan p 33 precipitation Water losses include water exiting the SWT through infiltration outflow through one or more of the SWT outlet features and or evapotranspiration Only Osgood Basin has been instrumented with Sigma 950 Flow Meters at both the inlet and outlet due to on going CSLT monitoring at the SWT Flow meters were installed in the Fall 2009 at the inlets of Park Avenue Upper B
240. trating water quality volume bypass pool volume wet basin and water quality volume flow through the bypass outlet structure and treated flow through the dry basin is defined by the storage capacity of the treatment outlet Wet Basin requirements include wet pool volume not water quality volume and hydraulic residence time not brim full draw down time See PLRM nhc et al 2009b for complete discussion and for water quality treatment The treated water definition of terms SWT below the bypass outlet structure designed quality volume is assigned a static CEC that assumes proper treatment within the SWT and improved water quality The CEC assigned in PLRM varies by SWT type and pollutant of concern One of the primary challenges of this SWT research is to identify appropriate field sampling protocols as well as data analysis techniques of SWT specific and temporally specific data to inform PLRM CEC values for water quality volumes by SWT type Surface Water Hydrology A continuous water budget is created at each dry and wet basin using a stage recorder In Situ LevelTroll 500 and detailed topographic elevation data The stage recorders are installed within the SWT to record water depth on 15 minute intervals see Protocol C In conjunction with the recorder staff plates are installed and used to manually verify and QA QC stage recorder data Topographic surveys will be completed by Summer 2010 for all SWTs including specific eleva
241. ty contributing area and water sample collection methods constant The constraint of these primary hydrologic parameters increase our confidence that computed differences in water quality constituents TSS FSP SRP are due to differences in roadway condition and not due to natural hydrologic or sampling variability The above needs require that the portable simulator be run at an estimated intensity of 5 in hr While this intensity is higher than most rain events in Lake Tahoe this increased rate is necessary to minimize the sampling duration and remain cost effective The relatively high intensity of simulated rainfall to some degree compensates for the lack of material transport downslope by flowing stormwater over the road surface that occurs during actual stormwater runoff events on impervious surfaces A summary of the portable simulator protocols include e Due to field personnel safety and resource limitations only one wet sample is obtained from each road segment during each sampling period unless field triplicates are performed for QA QC procedures Wet samples are typically collected on the shoulder margin of the drive lane and sites are selected to be visually representative of the condition of that location over the entire road segment Typically an area of moderate material accumulation is selected to reduce sampling variability across sites and sampling periods Personal safety and actual road condition occasionally require field per
242. ument manuals and SOPs provide the analysts with instructions on how to perform the method of standard addition Development of Detection Limits The method detection limit MDL is defined as the point at which the observed signal can reliably be considered to be caused by the analyte being measured WETLAB follows the specification in 40 CFR Part 136 Appendix B to determine method detection limits MDL The procedure is further described in W E T LAB SOP 9 10 MDL determinations shall be performed annually using standard solutions at approximately 3 5 times the published IDL or MDL for each method or the concentration value that corresponds to known instrumental limitations Preparation of the standard solutions shall include ail preparation steps digestion filtration extraction distillation etc that would be used in the preparation of environmental samples MDLs shall be determined by running the Standard solutions seven to ten times determining the standard deviation of the results and multiplying the standard deviation by the appropriate t statistic from the chart below taken from Chapter 1 Section 5 of SW 846 34 WETLAB Quality Assurance Pian Revision Date Apr 2007 Originat Date May 2002 Revision 4 STUDENTS t VALUES AT THE 99 PERCENT CONFIDENCE LEVEL Number of Replicates Degrees of Freedom n 1 n 1 0 99 MDL is calculated as follows MDL txS Where t student s t values at the 99 confide
243. v1 requires the user to input the maximum treated flow for a cartridge filter SWT Maximum Bypass Flow treatment flow is defined as the maximum flow rate temo anani through the cartridge filter that provides effective treatment nhc et al 2009b In proprietary filters this Treated is typically estimated as unit rate per cartridge number of cartridges Stormwater runoff that flows Maximum through the cartridges is considered treated flow Treatment Flew while all flows which exceed the maximum treatment PLRM Cartridge Filter schematic illustrating bypass flow when the flow are considered bypass flow The treated flow is maximum treatment flow is exceeded and treated flow through the SWT See PLRM nhc et al 2009b for complete discussion and assigned a static CEC that assumes proper treatment definition of terms within the SWT and improved water quality Surface Water Hydrology A Sigma 950 flow meter was installed at the inlet and outlet of the Stormfilter Vault in March 2009 to monitor the hydrology associated with this SWT see Protocol D To supplement this data a LevelTroll 500 pressure transducer was installed within the outlet in July 2009 to continuously monitoring outflow water depths Pipe dimensions have been measured and outflow volumes will be calculated on event seasonal and annual time scales Water Quality Sample Collection Automated samplers Sigma 90

Pollutant Load Reduction Model (PLRM)

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