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Appendix A - 0 Appendix A SITE LOCATION PLAN & PROPOSED

1. February 2003 1 79 p with additions March 2003 142 41 97 a 1 95 42 65 18th Morch 2003 2 16 4256 Mh Hem First Issue Client Project REDROW BRIDGE ROAD LYMINGTON oite Survey Plan grid is arbitrary Levels are to Ordnance datum Northampton NN6 8LD TEL 01604 842 888 FAX 01604 842 666 E Mail northampton hydrock com or visit www hydrock com Drawing Status Job No C 07418 Drawn Checked Scale at A1 Drawing No 07418 D004 Issue Date 1 500 04 12 07 04 12 07 Hydrock Consultants Unit 3 Hawthorn Park Holdenby Road Spratton INFORMATION Revision A 1 SAS Upstream by Weir River Sample Shell and Auger and Dynamic Sample Boreholes Hydrock 2007 08 Trial Pits Hydrock 2007 08 Shell and Auger Boreholes Site Analytical Services 2003 Trial Pits Site Analytical Services 2003 Previous Borehole Unknown investigation River Sample Locations Hydrock 2007 08 amp Site Analytical Services 2003 STP1 Hydrock River Sample 1 STP17 First Issue STP6 HWS11 A HTP11 seus HWS6 4 HWS5 HWS1 HTP2 seu P J 1 SAS Downstream by Marina River Sample Client REDROW HOMES Project BRIDGE ROAD LYMINGTON NS Exploratory Hole Location Plan TT 2 SAS Outlet Pipe River Sample Hydrock River Sample 2 Hydrock g Consultants Unit 3 Hawthorn Park
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3. Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0E 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance concentration graph Ogata Banks From calculation sheet Distance 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 Concentration mg l 1 0E 02 1 00 02 1 00 02 1 00 02 1 00 02 9 99 01 9 97 01 9 93 01 9 89 01 9 83 01 9 77 01 9 69 01 9 62 01 9 53 01
4. 1 0E 02 1 002 1 06402 1 08402 Calculated concentration mg l 1 08402 1 05402 o 2 4 8 10 12 Distance m Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance concentration graph Ogata Banks From calculation sheet Concentration Distance 0 5 1 0 15 2 0 25 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 8 5 9 0 9 5 10 0 mg l 1 0E 02 1
5. Longitudinal dispersivity 1 57E 00 m see options The measured groundwater concentration should be compared Transverse dispersivity 1 57E 01 m see options with the Level 3 remedial target to determine the need for further action Vertical dispersivity 1 57E 02 m see options Note if contaminant is not subject to first order degradation then set half life as 9 0 99 Calculated Parameters Variable This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such Groundwater fow V 2 945400 md as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Retardation factor Rf 1 53 03 fraction Decayrateused 4 53E 104 d Rate of contaminant flow due to retardation 1 92E 03 mid Contaminant concentration at distance x assuming one way vertical dispersion 8 91E 01 mg l Attenuation factor one way vertical dispersion CO CED 1 125400 Remedial Targets Remedial Target 1 57E 01 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 20 m Concentration of contaminant at compliance poin Cep Co 8 91E 01 mg l Ogata Banks after 1 0 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the
6. M 218 2026 4113 colt qas Ld i 1 78 c iN 209 1 16 M e Y i 1 63 9171 291 114 1995 X a 4 is dz 1 8297 ET 1 EA per 9 Ojas in 183 BTN di pies 2 06 station 1 92 e 6 hw m 1 59 779 50 TN 254 419 p ge 19 Y 1 08 concrete p i 7 Daal 41 12 buo s b 51 82 281 E e 61 50 22 92s 1 21 1 45 m 1 59 e 41 99 BA 1 55 1 58286 Y E uit M s i 42 1 08 4 Who 1 66 1 22 a T 242 p cd 1 58 246 17 2491 00 7 202 42 09 n 1 1 66 noon 18th Morch 2005 M 4 Generator uly 2 concrete for lel 0 98 2 4 41 96 40 bia i F 09 2 06 29 A j 1 61 4244 ERA m 0 78 22 0 2 8 e i v x 1 04 3 Heim Briega 1 05 i pumping 9 station A 122 4 1 18 VH ILIA NI 0 76 082 N 136 1 4 tit floor level oy A3 1 86 1 0 89 216 n N 41 28 Ofer Y 0 83 4 E 2 1 20 5 0 1 98 4 0 83 80 1 88 eu p foor 1 j 1 3 m 529 0 94 0 76 wm 4242 145 y 20 41 59 116 4 ads 5A e 6 081 1 8 42 16 E E concrete f 27 59 21 88 1 46 T i 55 ei floor 421 00 1 36 0 t 409 089 w 122 1 038
7. Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 18 2 2008 16 06 RT Worksheet Nickel xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Level 1 Soil 4 ene Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant Nickel Target concentration 0 86 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry Water filled soil porosity Ow 3 49E 01 traction Porosity Calculator This sheet calculates the Level 1 remedial target for soils mg kg based a selected target concentration and theoretical calculation of soil water partitioning Air filled soil porosity 0 00 00 traction Porosity Calculator Three options are included for determining the partition coefficient Bulk density of soil zone material p 1 81E 00 Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H
8. Level 3 Groundwater Input Parameters using pull down menu Variable Contaminant Target Concentration See Note ient using pull down menu Value Unit Source Select Method for deriving Partition Co ef User specified value for partition coefficient Chromium from Level 1 4 30E 01 mgl from Level 1 Entry if specify partition coefficient option fraction fraction Calc value Xu amp Eckstein 1 57 00 1 57 01 1 57 02 Soil water partition coefficient Kd 6 70 01 Entry for non polar organic chemicals option Select analytical solution click on brown cell below then on pull down menu Fraction of organic carbon in aquifer foc Ogata Banks _ Equations in HRA publication Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Approach for simulating vertical dispersion _ Simulate vertical dispersion in 1 direction Sorption coefficient for related species Koon Sorption coefficient for ionised species Koci Select nature of decay rate click on brown cell below then on pull down menu pH value pH Approach for simulating degradation of pollutants degradation rate to dissolved pollutants only 0 acid dissociation constant pKa So
9. We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Bridge Road Lymington AC 29 Feb 08 Version 3 1 Contaminant Copper Target Concentration 0 14 mg l Origin of Using level 4 dilution factor see report section 5 5 1 This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the origin
10. 0 00E 00 dimensionless remedial target to determine the need for further action Entry if specify partition coefficient option Soil water partition coefficient Kd 4 00 02 Consim Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon l kg Sorption coefficient for ionised species l kg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 4 00E 02 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 3 44E 02 for comparison with soil analyses or 0 86 for comparison with leachate test results Remedial targets worksheet v3 1 18 2 2008 16 06 RT Worksheet Nickel xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant Nickel from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration Cr 0 86 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 20
11. 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 1 00 02 9 99 01 9 99 01 9 99 01 9 98 01 18 2 2008 16 05 RT Worksheet Lead xlsLevel3 Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences o
12. 141 55 96 HA T 0 1 68 mys 8 A i Y 091 1 03 148 1 42 0 99 2 PIE 081 _080 96 1 81 gt PATRE 41 08 29 gt peli 19724 1 93 T EN b at 1 22 2 1 25 E ox 2 86 1 65 2 Urn 129 FT 5 185 157 145 E EA cr E 1 86 2 MI 716 y 4257 ae 202 v 1487 o 0 9 5 w 42 00 d 1 05 41 06 1 80 v 188 9 97 0 94 1 02 14 d v J 42 21 2 N 42 06 mum 2 51 0 92 112 x 1 06 x2 n 6 1 fer ni 0 82 240 42 55 ty 1 96 porch 138 borehole 1 32 1 30 n e 2g 7 206 Masi Los 1 37 135 Y 125 gt 145 E Y 1 0 2 14 1 97 180 n s 41 17 f T4 e D 1 60 1 55 0 036 97 caers 4254 18N 4198 7 285 v 245 jw 123 ya 4153 TM Mm 2or I 255 i f Holm Ook tress k N aoe 1 48 Y 1 59 i tn o y 4210 Bn j 157 2 02 em eios 2 v 147 208 3205 2 20 143 lt 182 y 20 el iu 2 1 58 2 68 m 4 T4 M63 Vl ru me Topographical survey ae at 4237 P d Webb s Factory Site Lymington 1 83 concrete by 06 41 75 3 Wessex Land Surveyors 41 92 178 140 Tel 01590 642232 1 80 Drawing 030720 1 87 December 2002 g 249 with additions February 2003 with additions
13. 85 0 90 0 95 0 100 0 ncentration graph ition sheet Concentration mg l 1 0E 02 9 44 01 8 23 01 7 30 01 6 60 01 6 07 01 5 64 01 5 30 01 5 00 01 76 01 4 54E 01 4 35E 01 4 19E 01 4 04 01 3 90 01 3 78E 01 3 67E 01 3 57E 01 3 47E 01 3 39E 01 3 31E 01 14 2 2008 12 10 RT Worksheet TPH Ali C16 C35 xlsLevel3 Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely r
14. 9 45 01 9 36 01 9 27 01 9 18 01 9 09 01 9 00 01 8 91 01 18 2 2008 15 59 RT Worksheet Chromium xlsLevel3 Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet
15. Kd 2 70E 02 Consim Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon l kg Sorption coefficient for ionised species l kg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 2 70E 02 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 1 95E 02 for comparison with soil analyses or 0 72 for comparison with leachate test results Remedial targets worksheet v3 1 18 2 2008 16 05 RT Worksheet Lead xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant Lead from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 0 72 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf 6 55E 04 m d fem www nwl ac uk 2
16. Level 1 Henry s Law constant H dimensionless TPHCWG at 10 25 C remedial target to determine the need for further action LTPHCWG 1102 55 Entry if specify partition coefficient option Soil water partition coefficient Kd RIVM 711701015 Appendix 6 Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc 9 Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon Vkg Sorption coefficient for ionised species Vkg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 1 60E 07 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 4 37E 07 mg kg for comparison with soil analyses or 2 73 mg l for comparison with leachate test results Remedial targets worksheet v3 1 14 2 2008 12 10 RT Worksheet TPH Ali C16 C35 xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant TPH Aliphatic C16 C35 from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 2 73 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further
17. Simulate vertical dispersion in 1 direction Sorption coefficient for related species Keown Sorption coefficient for ionised species Koci Select nature of decay rate click on brown cell below then on pull down menu pH value pH Approach for simulating degradation of pollutants degradation rate to dissolved pollutants only 0 acid dissociation constant pKa Source of parameter value Fraction of organic carbon in aquifer foc Initial contaminant concentration in groundwater at plume core 1 00 02 mg l Half life for degradation of contaminant in water 2 1 00E 100 days New Zealand Ministry for the Environment Soil water partition coefficient Kd 4 00E 02 Calculated decay rate 6 93E 101 days Width of plume in aquifer at source perpendicular to flow 52 1 50 02 m Site Data Plume thickness at source Sy 1 27 00 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials 1 81E 00 g cm Maximum sand value Consim Dispersivity based on Xu amp Eckstein 1995 Effective porosity of aquifer 3 49 01 fraction Calculator Hydraulic gradient 1 98E 03 fraction Site Data Enter value Hydraulic conductivity of aquifer 5 18E 02 md Minimum gravel value Consim Longitudinal dispersivity ax Distance to compliance point 2 00E 01 m Site Data Transverse dispersivity az Distance la
18. any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Version Contaminant Target Concentration Origin of This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origi
19. forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 14 2 2008 12 13 RT Worksheet TPH Aro C21 C35 xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Agency Level 1 Soil 4 Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant TPH Aromatic C21 C35 Target concentration 1 4 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry This sheet calculates the Level 1 remedial target for soils mg kg based on a selected target concentration and theoretical calculation of soil water partitioning fraction Porosity Calculator Three options are included for determining the partition coefficient Water filled soil porosity Ow fraction Porosity Calculator Air filled soil porosity 0a Bulk density of soil zone material p g cm Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H dimensionless TPHCWG at 1
20. only 0 00E 00 mgl 0 Remedial targets worksheet v3 1 18 2 2008 16 05 RT Worksheet Lead xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Level 3 Groundwater Input Parameters using pull down menu Variable Contaminant Target Concentration See Note ient using pull down menu Value Unit Source Select Method for deriving Partition Co ef User specified value for partition coefficient Lead from Level 1 7 20E 01 mgl from Level 1 Entry if specify partition coefficient option fraction fraction Calc value Xu amp Eckstein m 8 30 01 8 30 02 m 8 30 03 Soil water partition coefficient Kd 270E 02 kg Entry for non polar organic chemicals option Select analytical solution click on brown cell below then on pull down menu Fraction of organic carbon in aquifer foc _ Ogata Banks __ Equations in HRA publication Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Approach for simulating vertical dispersion _ Simulate vertical dispersion 1 direction Sorption coefficient for related species Koon Sorption coefficient for ionised species Koci Select nature of decay rate click on brown cell below then o
21. out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Bridge Road Lymington AC 29 Feb 08 Version 3 1 Contaminant Chromium Target Concentration 0 43 mg l Origin of Using level 4 dilution factor see report section 5 5 1 This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simpl
22. overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 Environment ency 1 05402 1 08402 4 9 8E401 9 6E401 94E401 928101 Calculated concentration mg l 9 0E401 8 8E401 o 5 10 15 20 25 Distance m Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0E 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance concen
23. sheets 12 0 9 62E 01 Effective porosity of aquifer 3 49E 01 fraction Porosity Calculator 13 0 9 53E 01 Hydraulic gradient i 1 98E 03 fraction Site Data Enter value Calc value Xu amp Eckstein m 14 0 9 45E 01 Hydraulic conductivity of aquifer 5 18E 02 mid Minimum gravel value Consim Longitudinal dispersivity ax 157E 00 m Note 15 0 9 36E 01 Distance to compliance point 2 00 01 m Site Data Transverse dispersivity az 157E01 m 16 0 9 27E 01 Distance lateral to compliance point perpendicular to flow direction 2 0 00E 00 m Vertical dispersivity ay 1 57 02 This sheet calculates the Level 3 remedial target for groundwater based on the distance to 17 0 9 18E 01 Distance depth to compliance point perpendicular to flow direction 0 00E 00 m Note values of dispersivity must be gt 0 the receptor or compliance located down hydraulic gradient of the source Three solution 18 0 9 09E 01 Time since pollutant entered groundwater 1 00 100 days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x methods are included the preferred option is Ogata Banks 19 0 9 00E 01 Parameters values determined from options ID Xu amp Eckstein 1995 report ax 0 83 logox az 10 100 are assumed By setting a long travel time it will give the steady state solution which should be used to 20 0 8 91E 01 Partition coefficient 2 95E 02 lkg see options calculate remedial targets
24. thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list solution assuming the centre of the plume is located at the mid depth of the aquifer is 11 0 9 69 01 Bulk density of aquifer materiale 1 1 00 g cm Maximum sand value Consim Dispersivity based Xu amp Eckstein 1995 presented Inthe calculation Sheets 12 0 9 62 01 Effective porosity of aquifer 3 49E 01 fraction Porosity Calculator 13 0 9 53E 01 Hydraulic gradient i 1 98E 03 fraction Site Data Enter value Calc value Xu amp Eckstein m 14 0 9 45E 01 Hydraulic conductivity of aquifer 5 18 02 mid Minimum gravel value Consim Longitudinal dispersivity ax 157E 00 m Note 15 0 9 36E 01 Distance to compliance point 2 00 01 m Site Data Transverse dispersivity az 157E01 m 16 0 9 27E 01 Distance lateral to compliance point perpendicular to flow direction 2 0 00E 00 m Vertical dispersivity ay 1 57 02 This sheet calculates the Level 3 remedial target for groundwater based on the distance to 17 0 9 18E 01 Distance depth to compliance point perpendicular to flow direction 0 00E 00 m Note values of dispersivity must be gt 0 the receptor or compliance located down hydraulic gradient of the source Three solution 18 0 9 09 01 Time since pollutant entered groundwater 1 00 100 days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x methods are included the preferred option is
25. to compliance point perpendicular to flow direction 2 m Vertical dispersivity Distance depth to compliance point perpendicular to flow direction m Note values of dispersivity must be gt 0 Time since pollutant entered groundwater t days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x Parameters values determined from options Partition coefficient 1 60 07 lkg see options Longitudinal dispersivity 4 42E 00 see options Transverse dispersivity az 4 42E 01 m see options Vertical dispersivity 4 42E 02 m see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 8 30 07 fraction Decayrateused 8 35E 109 Rate of contaminant flow due to retardation 3 54E 08 mid Contaminant concentration at distance x assuming one way vertical dispersion 3 31E 01 mg l Attenuation factor one way vertical dispersion CO CED 3 02E 00 Remedial Targets Remedial Target 8 26E 00 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 100 m Concentration of contaminant at compliance point Cep Co 3 31E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial target
26. 0 25 C remedial target to determine the need for further action LTPHCWG 1102 55 Entry if specify partition coefficient option Soil water partition coefficient Kd RIVM 711701015 Appendix 6 Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc 9 Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon Vkg Sorption coefficient for ionised species Vkg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 2 02E 03 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 2 82E 03 mg kg for comparison with soil analyses or 1 4 mg l for comparison with leachate test results Remedial targets worksheet v3 1 14 2 2008 12 13 RT Worksheet TPH Aro C21 C35 xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant TPH Aromatic C21 C35 from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 1 4 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment
27. 0 of rainfall plus 10 for Area of contaminant source A 7 50E 03 m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L 2 06E 02 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K 5 18E 02 m d Minimum Gravel value Consim Hydraulic gradient of water table i 1 98E 03 fraction Site Data Width of contaminant source perpendicular to groundwater flow w 1 50E 02 m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu 0 00E 00 mg l Define mixing zone depth by specifying or calculating depth using pull down list Calculate Enter mixing zone thickness Mz Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 7 94E 00 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 2 15E 03 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 0 00E 00 mg l Calculated concentration within receptor dilution
28. 06 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf 6 55E 04 m d fem www nwl ac uk 20 of rainfall plus 10 for Area of contaminant source A 7 50E 03 m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L 2 06E 02 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K 5 18E 02 m d Minimum Gravel value Consim Hydraulic gradient of water table i 1 98E 03 fraction Site Data Width of contaminant source perpendicular to groundwater flow w 1 50E 02 m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu 0 00E 00 mg l Define mixing zone depth by specifying or calculating depth using pull down list Calculate Enter mixing zone thickness Mz Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 9 49E 00 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 3 80E 03 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation
29. 2 1 05402 8 0E401 6 0E 01 40E401 Calculated concentration mg l 2 0E401 0 0E400 o 20 40 80 100 120 Distance m Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0E 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance concentration graph Ogata Banks From calculation sheet Distance 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 Concent
30. 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 ncentration graph ition sheet Concentration mg l 1 0E 02 9 44 01 8 23 01 7 30 01 6 60 01 6 07 01 5 64 01 5 30 01 5 00 01 76 01 4 54E 01 4 35E 01 4 19E 01 4 04 01 3 90 01 3 78E 01 3 67E 01 3 57E 01 3 47E 01 3 39E 01 3 31E 01 14 2 2008 12 08 RT Worksheet TPH Ali C12 C16 xlsLevel Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure th
31. Holdenby Road Spratton Northampton NN6 8LD TEL 01604 842 888 FAX 01604 842 666 E Mail northampton hydrock com or visit www hydrock com Drawing Status INFORMATION R C 07418 Drawn Checked Scale at A3 Date Issue Date 1 1000 04 02 08 04 02 08 Drawing No Revision 07418 D008 A Redrow Homes Southern Limited Groundwater Risk Assessment at Bridge Road Lymington R 07418 005 Appendix C CONCEPTUAL MODEL AND GROUNDWATER CONTOUR MODELING Appendix C 0 There are 2 separate hydrogeological units consisting of e Made Ground flowing southeast and e Alluvial Sequence and Bracklesham and Bagshot Beds flowing east flowing south Offsite Migration of Contaminated Railway Line 5 groundwater throught the Made Ground Hydrocarbon and metal contamination within the Made Ground Made Ground Lymington River Alluvial Clay Pp o o0 0 90 90 0 0 0 9 o AlluvialGravel 9 6 9 97 Alluvial Clay acts as a partial aquiclude preventing the downwards migration of groundwater and contaminants Bracklesham and Bagshot Beds Client REDROW Hydrock Consultants Unit 3 Hawthorn Park Holdenby Road Spratton Project Northampton NN6 8LD TEL 01604 842 666 BRIDGE ROAD FAX 01604 667 810 E Mail northampton hydrock com or visit www hydrock com LYM Drawing Status INFORMATIO
32. N ME C 07418 Conce tual Model Drawn Checked Scale at Date Issue Date P AB 1 500 14 02 08 14 02 08 14 02 08 First Issue Drawing No Revision ee 17 074180012 Made Ground Alluvial Clay Gradient 0 00198 Gradient 0 0048 HWS12 Hws12 ost 48 ET a HERR Se dead NNNM 1 HAMM HWS6 HWS7 HWS1 HWS5 Alluvial Gravel Gradient 0 00388 Bracklesham Beds Gradient 0 00624 HBH9 HWS12 T Ne Xx TERT e DAN HBH10 07 Xy X Ca X LL SEN CC SIMO HWS1 Hws5 REDROW HOMES Notes Hydrock Consultants Unit 3 Hawthorn Park Holdenby Road Spratton Northampton NN6 8LD Project BRI DG E ROAD TEL 01604 842 888 FAX 0180 842 666 LYMINGTON Freue Drawing Status ALL IN CAPS Job No C 07418 G rou ndwater Contou r Drawn Checked Scale at Date Issue Date Modeling 05 02 08 05 02 08 Drawing No Revision 07418 D011 Insufficient monitoring data is available for accurate modelling of the Bracklesham Beds Groundwater flow direction in the Bracklesham Beds is assumed to be the same as the Alluvial Deposits Title First Issue Redrow Homes Southern Limited Groundwater Risk Assessment at Bridge Road Lymington R 07418 005 Appendix D GROUNDWATER RISK ASSESSMENT REMEDIAL TARGETS WORKSHEETS Appendix D 0 Environment AW Agency Hydrogeological risk assessment for land conta
33. N STORES LAUNDRY ETC 8 BLOCK G PUMPING STATION X PRC FEWSTER ARCHITECTS ARCHITECTURE PLANNING URBAN DESIGN ENGINEERING LANDSCAPE INTERIORS ACCES STORE RAILWAY STATION SURBITON rohitacts ore group com w prc group com Client PAXTON HOLDINGS Project AL O 2 Bridge Road Q Lymington Drawing Tile AX Colour C womaton Approval C Construction C Project Co ordinator ADM Stage Drawing No PL 12 101 Offices also at LONDON FARNHAM CORK MLIONKENNES M WARSAW Redrow Homes Southern Limited Groundwater Risk Assessment at Bridge Road Lymington R 07418 005 Appendix B CURRENT SITE LAYOUT AND EXPLORATORY HOLE LOCATION PLAN Appendix B 0 LEGEND 41 38 9 7 41 44 145 143 41 48 1 64 1208 Oo 18 04 12 07 Riverside ar bock foce YA ak Company met rend 226 e 2 29 Ww E 25 N H Yot Grot 2 aga 22 t ROS 26 f 205 102 2 4248227 MN 245 205 203 wy 1 18 TM 9242 VV d Ny 7529 moon 18th Morch 2003 2 12 iX 1 i 05 nda dde Ee ES 254 N ae 3 252 228 onn 228 4230 A N mimos 21 242 Nim 212 REUS fa ymin T y 257 um 2 Ry oon Tn high pe b18 27 209 Bem v ida ade 2 919 gg 42 56 NA 2p
34. Ogata Banks 19 0 9 00E 01 Parameters values determined from options Xu amp Eckstein 1995 report 0 83 logox az 10 100 assumed By setting a long travel time it will give the steady state solution which should be used to 20 0 8 91E 01 Partition coefficient 2 00E 02 lkg options calculate remedial targets Longitudinal dispersivity 1 57E 00 m see options The measured groundwater concentration should be compared Transverse dispersivity 1 57E 01 m see options with the Level 3 remedial target to determine the need for further action Vertical dispersivity 1 57E 02 m see options Note if contaminant is not subject to first order degradation then set half life as 9 0 99 Calculated Parameters Variable This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such Groundwater 2 2 946400 oxidation by O2 SO4 etc than alternative solution should be used Retardation factor Rf 1 04 03 fraction Decayrateused 6 68E 104 d Rate of contaminant flow due to retardation 2 83E 03 mid Contaminant concentration at distance x assuming one way vertical dispersion 8 91E 01 mg l Attenuation factor one way vertical dispersion CO CED 1 125400 Remedial Targets Remedial Target 1 29E 00 mg l For comparison with measured groun
35. Redrow Homes Southern Limited Groundwater Risk Assessment at Bridge Road Lymington R 07418 005 Appendix A SITE LOCATION PLAN amp PROPOSED DEVELOPMENT PLAN Appendix A 0 3 Vm ams se SER 5 y INSET PLAN NOT TO SCALE c ZIRIN 7 la eS an a 7 Coprthome ee BRIDGE ROAD REDROW HOMES 8 LYMINGTON SOUTHERN LIMITED Hydrock Consultants Unit 3 Hawthorn Park Drawing Status Maud Road pratton INFORMATION Northampton NN6 8LD Title S ite L ti PI TEL 01604 842 888 FAX 01604 842 666 Location Flan ob No C 07418 E Mail northampton hydrock com or visit www hydrock com Revisions A Site plan adjusted ADM 13 10 04 B Adjustments to allow for EA 6 0mADM to allow for EA 6 0m4DM16 12 04 zone outside tree canopy KEY 8 Slab paving EH Recon granite coloured paving units Tegula paving Tarmac Bound gravel RIVERSIDE PROMENADE Proposed shrub planting Lawn Proposed tree planting Existing trees Proposed native ree species E native marginal species shrub planting CENTRAL BOULEVARD RECEPTION BB LOUNGE ws OT HESS FOYER HOTEL RESTAURANT OFFICES ADU RIVERSIDE PROMENADE LIVE WORK UNITS KITCHE
36. action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf m d www nwl ac uk 10 of rainfall plus 10 for arai Area of contaminant source A m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L m Site Data Saturated aquifer thickness da m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K m d Minimum Gravel value Consim Hydraulic gradient of water table i fraction Site Data Width of contaminant source perpendicular to groundwater flow w m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu mg l Define mixing zone depth by specifying or calculating depth using pull down list Enter mixing zone thickness Mz m Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 3 01E 01 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 4 82E 08 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impac
37. al worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 18 2 2008 16 02 RT Worksheet Copper xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Level 1 Soil 4 es Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant Copper Target concentration 0 14 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry Water filled soil porosity Ow 3 49E 01 traction Porosity Calculator This sheet calculates the Level 1 remedial target for soils mg kg based a selected target concentration and theoretical calculation of soil water partitioning Air filled soil porosity 0 00 00 traction Porosity Calculator Three options are included for determining the partition coefficient Bulk density of soil zone material p 1 81E 00 Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H 0 00E 00 dimensionless remedial target to determine the need for further action Entry if specify partition coefficient option Soil w
38. and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 14 2 2008 12 10 RT Worksheet TPH Ali C16 C35 xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Agency Level 1 Soil 4 Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant TPH Aliphatic C16 C35 Target concentration 2 73 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry This sheet calculates the Level 1 remedial target for soils mg kg based on a selected target concentration and theoretical calculation of soil water partitioning fraction Porosity Calculator Three options are included for determining the partition coefficient Water filled soil porosity Ow fraction Porosity Calculator Air filled soil porosity 0a Bulk density of soil zone material g cm Maximum sand value Consim The measured soil concentration as mg kg should be compared with the
39. anic carbon in aquifer Kd Entry for non polar organic chemicals option foc Koc Koci pH pKa foc Kd LEES uo fraction fraction 2 02E 03 Dispersivity based on Xu amp Eckstein 1995 ax az ay Enter value Calc value amp Eckstein m 4 42 00 m 4 42 01 m 4 42E 02 Xu amp Eckstein 1995 report ax 0 83 logox az ax 10 ay 100 are assumed Initial contaminant concentration in groundwater at plume core mg l Half life for degradation of contaminant in water 12 days New Zealand Ministry for the Environment Soil water partition coefficient Calculated decay rate days Width of plume in aquifer at source perpendicular to flow 52 Site Data Plume thickness at source Sy m Site Data Saturated aquifer thickness m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials g cm Maximum sand value Consim Effective porosity of aquifer fraction Porosity Calculator Hydraulic gradient fraction Site Data Hydraulic conductivity of aquifer m d Minimum gravel value Consim Longitudinal dispersivity Distance to compliance point m Site Data Transverse dispersivity Distance lateral to compliance point perpendicular to flow direction 2 m V
40. at the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Version Contaminant Target Concentration Origin of This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow
41. ater partition coefficient Kd 2 95 02 Consim Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon l kg Sorption coefficient for ionised species l kg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 2 95E 02 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 4 13E 01 for comparison with soil analyses or 0 14 for comparison with leachate test results Remedial targets worksheet v3 1 18 2 2008 16 02 RT Worksheet Copper xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant Copper from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 0 14 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source o
42. based on Target Concentra or 2 54E 03 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 0 00E 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 Remedial targets worksheet v3 1 18 2 2008 16 09 RT Worksheet Zinc xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Environment V Agency Level 3 Groundwater See Note Input Parameters using pull down menu Variable Value Unit Source Select Method for deriving Partition Co efficient using pull down menu User specified value for partition coefficient L Calculated concentrations for Contaminant Zinc Level 1 distance concentration graph Target Concentration 1 15E 00 mgl from Level 1 Entry if specify partition coefficient option MEHR T Soil water partition coefficient Kd 2 00 02 Ogata Banks Entry for non polar organic chemicals option 395097 From calculation sheet Select analytical solution click on brown cell below then on pull down menu Fractio
43. concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf 6 55E 04 m d fem www nwl ac uk 20 of rainfall plus 10 for Area of contaminant source A 7 50E 03 m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L 2 06E 02 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K 5 18E 02 m d Minimum Gravel value Consim Hydraulic gradient of water table i 1 98E 03 fraction Site Data Width of contaminant source perpendicular to groundwater flow w 1 50E 02 m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu 0 00E 00 mg l Define mixing zone depth by specifying or calculating depth using pull down list Calculate Enter mixing zone thickness Mz Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 1 27E 01 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is
44. constant Source of parameter value Fraction of organic carbon in aquifer Kd Entry for non polar organic chemicals option foc Koc Koci pH pKa foc Kd EEG fraction fraction 1 60 07 Dispersivity based on Xu amp Eckstein 1995 ax az ay Enter value Calc value Xu amp Eckstein m 4 42 00 m 4 42 01 m 4 42 02 Xu amp Eckstein 1995 report ax 0 83 logox az 10 ay 100 are assumed Initial contaminant concentration in groundwater at plume core mg l Half life for degradation of contaminant in water 12 days New Zealand Ministry for the Environment Soil water partition coefficient Calculated decay rate days Width of plume in aquifer at source perpendicular to flow 52 Site Data Plume thickness at source m Site Data Saturated aquifer thickness m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials g cm Maximum sand value Consim Effective porosity of aquifer fraction Porosity Calculator Hydraulic gradient i fraction Site Data Hydraulic conductivity of aquifer m d Minimum gravel value Consim Longitudinal dispersivity Distance to compliance point m Site Data Transverse dispersivity Distance lateral
45. culating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 Environment gency 128402 1 05402 8 0E401 6 0E 01 40E401 Calculated concentration mg l 2 0E401 0 0E400 o 20 40 80 Distance m 100 120 Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0E 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance coi Ogata Banks From calcula Distance 5 0 10 0 15 0 20 0 25 0 30 0
46. d all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 18 2 2008 16 05 RT Worksheet Lead xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Level 1 Soil 4 ene Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant Lead Target concentration 0 72 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry Water filled soil porosity Ow 3 49E 01 traction Porosity Calculator This sheet calculates the Level 1 remedial target for soils mg kg based a selected target concentration and theoretical calculation of soil water partitioning Air filled soil porosity 0 00 00 fraction Porosity Calculator Three options are included for determining the partition coefficient Bulk density of soil zone material p 1 81E 00 Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H 0 00E 00 dimensionless remedial target to determine the need for further action Entry if specify partition coefficient option Soil water partition coefficient
47. d soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H dimensionless TPHCWG at 10 25 C remedial target to determine the need for further action LTPHCWG 1102 55 Entry if specify partition coefficient option Soil water partition coefficient Kd RIVM 711701015 Appendix 6 Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc 9 Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon Vkg Sorption coefficient for ionised species Vkg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 8 02E 04 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 6 89E 04 mg kg for comparison with soil analyses or 0 86 mg l for comparison with leachate test results Remedial targets worksheet v3 1 14 2 2008 12 08 RT Worksheet TPH Ali C12 C16 xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant TPH Aliphatic C12 C16 from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 0 86 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the L
48. dwater concentration Ogata Banks Distance to compliance point 20 m Concentration of contaminant at compliance poin 8 91E 01 mg l Ogata Banks after 1 0 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 18 2 2008 16 09 RT Worksheet Zinc xlsLevel Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide
49. e hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 18 2 2008 15 59 RT Worksheet Chromium xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Level 1 Soil 4 ene Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant Chromium Target concentration 0 43 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry Water filled soil porosity Ow 3 49E 01 traction Porosity Calculator This sheet calculates the Level 1 remedial target for soils mg kg based a selected target concentration and theoretical calculation of soil water partitioning Air filled soil porosity 0 00 00 fraction Porosity Calculator Three options are included for determining the partition coefficient Bulk density of soil zone material p 1 81E 00 Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H 0 00E 00 dimensionless remedial target to determine the need for further action Entry if specify partition coefficient option Soil water partition coefficient Kd 6 70 01 Consim Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc E
50. e that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Bridge Road Lymington AC 29 Feb 08 Version 3 1 Contaminant Lead Target Concentration 0 72 mg l Origin of Using level 4 dilution factor see report section 5 5 1 This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is save
51. efficient for related species 1 1 0 1 00 00 Sorption coefficient for ionised species kg g 926 01 2 0 1 00E 00 Select nature of decay rate click on brown cell below then on pull down menu pH value pH 3 0 1 00E 00 Approach for simulating degradation of pollutants degradation rate to dissolved p mes dissociation constant pKa 4 0 1 00E 00 Source of parameter value Fraction of organic carbon in aquifer foc fraction 5 0 9 99E 01 Initial contaminant concentration in groundwater at plume core 1 00E 00 mg l 2 M ja x amp 6 0 9 97 01 Half life for degradation of contaminant in water 112 1 00 100 days New Zealand Ministry for the Environmeni Soil water partition coefficient Kd 2 95E 02 Distance m 70 9 93E 01 Calculated decay rate 6 93E 101 days 8 0 9 89E 01 Width of plume in aquifer at source perpendicular to flow 52 1 50E 02 m Site Data 9 0 9 83E 01 Plume thickness at source Sy 1 27E 00 m Site Data Note graph assumes plume disperses vertically in one direction only An alternative 10 0 9 77E 01 Saturated aquifer thickness da 1 82E 00 m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list solution assuming the centre of the plume is located at the mid depth of the aquifer is 11 0 9 69E 01 Bulk density of aquifer materiale 1 1 00 g cm Maximum sand value Consim Dispersivity based Xu amp Eckstein 1995 presented In the calculation
52. ertical dispersivity Distance depth to compliance point perpendicular to flow direction m Note values of dispersivity must be gt 0 Time since pollutant entered groundwater t days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x Parameters values determined from options Partition coefficient 2 02E 03 Vkg see options Longitudinal dispersivity 4 42E 00 m see options Transverse dispersivity 4 42E 01 m see options Vertical dispersivity 4 42 02 see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 1 05E 04 fraction Decayrateused 6 63E 105 Rate of contaminant flow due to retardation 2 81E 04 mid Contaminant concentration at distance x assuming one way vertical dispersion 3 31E 01 mg l Attenuation factor one way vertical dispersion CO CED 3 02E 00 Remedial Targets Remedial Target 4 23 00 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 100 m Concentration of contaminant at compliance poin Cep Co 3 31E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 Environment gency 12840
53. esponsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Version Contaminant Target Concentration Origin of This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried
54. evel 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf www nwl ac uk 20 of rainfall plus 10 for arai Area of contaminant source A m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L m Site Data Saturated aquifer thickness da m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K m d Minimum Gravel value Consim Hydraulic gradient of water table i fraction Site Data Width of contaminant source perpendicular to groundwater flow w m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu mg l Define mixing zone depth by specifying or calculating depth using pull down list Enter mixing zone thickness Mz m Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 9 49E 00 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 7 61E 05 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calcu
55. f any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Bridge Road Lymington AC 29 Feb 08 Version 3 1 Contaminant Nickel Target Concentration 0 86 mg l Origin of Using level 4 dilution factor see report section 5 5 1 This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identified by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports
56. f parameter value Standard entry Infiltration Inf 6 55E 04 m d www nwl ac uk 20 of rainfall plus 10 for aa Area of contaminant source A 7 50E 03 m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow b 2 00E 01 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K 5 18E 02 m d Minimum Gravel value Consim Hydraulic gradient of water table i 1 98E 03 fraction Site Data Width of contaminant source perpendicular to groundwater flow w 1 50E 02 m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu 0 00E 00 mg l Define mixing zone depth by specifying or calculating depth using pull down list Calculate Enter mixing zone thickness Mz m Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 04E 02 Level 2 Remedial Target 1 46E 01 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 4 31E 03 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 0 00E 00 mg l Calculated concent
57. for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf www nwl ac uk 20 of rainfall plus 10 for arai Area of contaminant source A m Site Data Not used in calculation Entry for groundwater flow below site Length of contaminant source in direction of groundwater flow L m Site Data Saturated aquifer thickness da m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K m d Minimum Gravel value Consim Hydraulic gradient of water table i fraction Site Data Width of contaminant source perpendicular to groundwater flow w m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu mg l Define mixing zone depth by specifying or calculating depth using pull down list Enter mixing zone thickness Mz m Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 10E 01 Level 2 Remedial Target 1 54E 01 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 3 11E 04 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contami
58. he partition coefficient Bulk density of soil zone material p 1 81E 00 Maximum sand value Consim The measured soil concentration as mg kg should be compared with the Level 1 Henry s Law constant H 0 00E 00 dimensionless remedial target to determine the need for further action Entry if specify partition coefficient option Soil water partition coefficient Kd 2 00 02 Entry for non polar organic chemicals option Fraction of organic carbon in soil foc fraction Organic carbon partition coefficient Koc Entry for ionic organic chemicals option Sorption coefficient for neutral species Koon l kg Sorption coefficient for ionised species l kg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 2 00E 02 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 2 30E 02 for comparison with soil analyses or 1 15 for comparison with leachate test results Remedial targets worksheet v3 1 18 2 2008 16 09 RT Worksheet Zinc xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant Zinc from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 1 15 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water
59. ied by brown background and employ a pull down menus Data entry are identified as blue background Data origin justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 18 2 2008 16 09 RT Worksheet Zinc xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Level 1 Soil 4 ene Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant Zinc Target concentration 1 15 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry Water filled soil porosity Ow 3 49E 01 traction Porosity Calculator This sheet calculates the Level 1 remedial target for soils mg kg based a selected target concentration and theoretical calculation of soil water partitioning Air filled soil porosity 0 00 00 traction Porosity Calculator Three options are included for determining t
60. lated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 00 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 14 2 2008 12 08 Remedial targets worksheet v3 1 RT Worksheet TPH Ali C12 C16 xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Level 3 Groundwater See Note Input Parameters using pull down menu Variable Value Unit Contaminant Aliphatic C12 C16 Target Concentration 8 60E 01 mg l Select analytical solution click on brown cell below then on pull down menu Source Select Method for deriving Partition Co efficient using pull down menu User specified value for partition coefficient Level 1 from Level 1 Entry if specify partition coefficient option Soil water partition coefficient Fraction of organic carbon in aquifer Ogata Banks Equations in HRA publication Organic carbon partition coefficient Entry for ionic organic chemicals option Approach for simulating vertical dispersion Simulate vertical dis persion in 1 direction Sorption coefficient for related species Select nature of decay rate click on brown cell below then on pull down menu Sorption coefficient for ionised species pH value Approach for simulating degradation of pollutants Apply deg
61. lues of dispersivity must be gt 0 Time since pollutant entered groundwater t 1 00 100 days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x Parameters values determined from options BE Xu amp Eckstein 1995 report ax 0 83 logox az 10 100 are assumed Partition coefficient 2 70E 02 Vkg see options Longitudinal dispersivity 8 30E 01 see options Transverse dispersivity 8 30 02 see options Vertical dispersivity 8 30 03 see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 1 40E 03 fraction Decayrateused 4 95E 104 Rate of contaminant flow due to retardation 2 10E 03 mid Contaminant concentration at distance x assuming one way vertical dispersion 9 98E 01 mg l Attenuation factor one way vertical dispersion CO CED 1 00E 00 Remedial Targets Remedial Target 7 21E 01 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 10 m Concentration of contaminant at compliance poin 9 98E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 Environment ency
62. m Site Data Transverse dispersivity Distance lateral to compliance point perpendicular to flow direction 2 m Vertical dispersivity Distance depth to compliance point perpendicular to flow direction m Note values of dispersivity must be gt 0 Time since pollutant entered groundwater t days variant options only For calculated value assumes ax 0 1 x az 0 01 x ay 0 001 x Parameters values determined from options Partition coefficient 8 02E 04 lkg see options Longitudinal dispersivity 4 42E 00 m see options Transverse dispersivity 4 42E 01 m see options Vertical dispersivity 4 42 02 see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 4 16E 05 fraction Decayrateused 1 67E 106 Rate of contaminant flow due to retardation 7 07E 06 mid Contaminant concentration at distance x assuming one way vertical dispersion 3 31E 01 mg l Attenuation factor one way vertical dispersion CO CED 3 02E 00 Remedial Targets Remedial Target 2 60E 00 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 100 m Concentration of contaminant at compliance point Cep Co 3 31E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when cal
63. mination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry
64. n justification should be noted in cells coloured yellow and fully documented in subsequent reports Data carried forward from an earlier worksheet are identified by a light green background It is recommended that a copy of the original worksheet is saved all data fields in the original copy are blank The spreadsheet also includes a porosity calculation worksheet a soil impact calculation worksheet and a worksheet that performs some simple hydrogeological calculations Environment Agency Publication 20 Remedial Targets worksheet v3 1 14 2 2008 12 08 RT Worksheet TPH Ali C12 C16 xlsIntroduction Remedial Targets Worksheet Release 3 1 Environment Agency Level 1 Soil 4 Select the method of calculating the soil water Partition Co efficient by using the pull down menu below User specified value for partition coefficient Contaminant TPH Aliphatic C12 C16 Target concentration Cr 0 86 mg l Input Parameters Variable Value Unit Source of parameter value Standard entry This sheet calculates the Level 1 remedial target for soils mg kg based on a selected target concentration and theoretical calculation of soil water partitioning fraction Porosity Calculator Three options are included for determining the partition coefficient Water filled soil porosity Ow fraction Porosity Calculator Air filled soil porosity 0a Bulk density of soil zone material g cm Maximum sand value Consim The measure
65. n of organic carbon in aquifer foc fraction m Distance Concentration Ogata Banks _ Equations in HRA publication Organic carbon partition coefficient Koc H mgl Entry for ionic organic chemicals option 8 9 4E 01 0 1 0E 02 Approach for simulating vertical dispersion _ Simulate vertical dispersion in 1 direction T Sorption coefficient for related species Keen 3 1 0 1 00E 02 Sorption coefficient for ionised species 8 92 01 2 0 1 00E 02 Select nature of decay rate click on brown cell below then on pull down menu pH value pH 3 0 1 00E 02 Approach for simulating degradation of pollutants gradation rate to dissolved p mes dissociation constant pKa oput 4 0 1 00 02 Source of parameter value Fraction of organic carbon in aquifer foc fraction 5 0 9 99E 01 Initial contaminant concentration in groundwater at plume core 1 00 02 2 M ja x amp 6 0 9 97 01 Half life for degradation of contaminant in water 112 1 00 100 days New Zealand Ministry for the Soil water partition coefficient Kd 2 00 02 Distance m 70 9 93E 01 Calculated decay rate 6 93E 101 days 8 0 9 89E 01 Width of plume in aquifer at source perpendicular to flow 52 1 50E 02 m Site Data 9 0 9 83E 01 Plume thickness at source Sy 1 27E 00 m Site Data Note graph assumes plume disperses vertically in one direction only An alternative 10 0 9 77E 01 Saturated aquifer thickness da 1 82E 00 m MG
66. n pull down menu pH value pH Approach for simulating degradation of pollutants degradation rate to dissolved pollutants only 0 acid dissociation constant pKa Source of parameter value Fraction of organic carbon in aquifer foc Initial contaminant concentration in groundwater at plume core 1 00E 02 mg l Half life for degradation of contaminant in water 1 00 100 days New Zealand Ministry for the Environment Soil water partition coefficient Kd 2 70E 02 Calculated decay rate 6 93E 101 days Width of plume in aquifer at source perpendicular to flow 52 1 50 02 m Site Data Plume thickness at source Sy 1 27 00 m Site Data Saturated aquifer thickness 1 32 00 m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials 1 81E 00 g cm Maximum sand value Consim Dispersivity based on Xu amp Eckstein 1995 Effective porosity of aquifer 3 49 01 fraction Calculator Hydraulic gradient 1 98E 03 fraction Site Data Enter value Hydraulic conductivity of aquifer 5 18E 02 mid Minimum gravel value Consim Longitudinal dispersivity ax Distance to compliance point 1 00E 01 m Site Data Transverse dispersivity az Distance lateral to compliance point perpendicular to flow direction 2 0 00E 00 m Vertical dispersivity ay Distance depth to compliance point perpendicular to flow direction 0 00E 00 m Note va
67. nated discharge entering receptor Cc 00 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 14 2 2008 12 13 Remedial targets worksheet v3 1 RT Worksheet TPH Aro C21 C35 xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Level 3 Groundwater See Note Input Parameters using pull down menu Variable Value Unit Contaminant Aromatic C21 C35 Target Concentration 1 40 00 mg l Select analytical solution click on brown cell below then on pull down menu Source Select Method for deriving Partition Co efficient using pull down menu User specified value for partition coefficient Level 1 from Level 1 Entry if specify partition coefficient option Soil water partition coefficient Fraction of organic carbon in aquifer Ogata Banks Equations in HRA publication Organic carbon partition coefficient Entry for ionic organic chemicals option Approach for simulating vertical dispersion Simulate vertical dis persion in 1 direction Sorption coefficient for related species Select nature of decay rate click on brown cell below then on pull down menu Sorption coefficient for ionised species pH value Approach for simulating degradation of pollutants Apply degradation rate to dissolved pollutants only acid dissociation constant Source of parameter value Fraction of org
68. ntry for ionic organic chemicals option Sorption coefficient for neutral species Koon l kg Sorption coefficient for ionised species l kg pH value pH pH units Acid dissociation constant pKa Fraction of organic carbon in soil foc fraction Soil water partition coefficient used in Level Assessment Kd 6 70E 01 l kg Specified value Level 1 Remedial Target Level 1 Remedial Target 2 89E 01 for comparison with soil analyses or 0 43 for comparison with leachate test results Remedial targets worksheet v3 1 18 2 2008 15 59 RT Worksheet Chromium xlsLevel1 Soil Remedial Targets Worksheet Release 3 1 Environment Level 2 Soil AW Agency Contaminant Chromium from Level 1 This sheet calculates the Level 2 remedial target for soils mg kg or for pore water Target concentration 0 43 mg l from Level 1 mg l The measured soil concentration as mg kg or pore water concentration should be compared with the Level 2 remedial target to determine the need for further action Equations presented in Hydrogeological risk assessment for land contamiantion Environment Agency 2006 Input Parameters Variable Value Unit Source of parameter value Standard entry Infiltration Inf 6 55E 04 m d www nwl ac uk 20 of rainfall plus 10 for aa Area of contaminant source A 7 50E 03 m Site Data Not used in calculation Entry for g
69. ny particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promise that the media will always be free from defects computer viruses software locks or other similar code or that the operation of the worksheet will be uninterrupted or error free You should carry out all necessary virus checks prior to installing on your computing system Details to be completed for each assessment Bridge Road Lymington AC 29 Feb 08 Version 3 1 Contaminant Zinc Target Concentration 1 15 mg l Origin of Using level 4 dilution factor see report section 5 5 1 This worksheet can be used to determine remedial targets for soils Worksheets Level 1 Soil Level 2 and Level 3 Soil or to determine remedial targets for groundwater Level 3 Groundwater For Level 3 parameter values must be entered separately dependent on whether the assessment is for soil or groundwater For soil remedial targets are calculated as either mg kg for comparision with soil measurements or mg l for comparison with leaching tests or pore water concentrations Site details entered on this page are automatically copied to Level 1 2 and 3 Worksheets Worksheet options are identif
70. of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 0 00E 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 Remedial targets worksheet v3 1 18 2 2008 16 06 RT Worksheet Nickel xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Level 3 Groundwater Input Parameters using pull down menu Variable Contaminant Target Concentration See Note Value Unit Source Nickel from Level 1 8 60E 01 mgl from Level 1 Select analytical solution click on brown cell below then on pull down menu imm Ogata Banks Equations in HRA publication Select Method for deriving Partition Co ef User specified value for partition coefficient Entry if specify partition coefficient option Soil water partition coefficient Kd 2 00 02 Entry for non polar organic chemicals option Fraction of organic carbon in aquifer foc Organic carbon partition coefficient Koc Entry for ionic organic chemicals option ient using pull down menu fraction fraction 1kg Calc value Xu amp Eckstein m 1 57E 00 m 1 57 01 1 57 02 Approach for simulating vertical dispersion
71. radation rate to dissolved pollutants only acid dissociation constant Source of parameter value Fraction of organic carbon in aquifer Kd Entry for non polar organic chemicals option foc Koc Koci pH pKa foc Kd LEES uo fraction kg fraction 8 02E 04 kg Dispersivity based on Xu amp Eckstein 1995 ax az ay Enter value Calc value amp Eckstein m 4 42 00 m 4 42 01 m 4 42E 02 Xu amp Eckstein 1995 report ax 0 83 logox az ax 10 ay 100 are assumed Initial contaminant concentration in groundwater at plume core mg l Half life for degradation of contaminant in water 12 days New Zealand Ministry for the Environment Soil water partition coefficient Calculated decay rate days Width of plume in aquifer at source perpendicular to flow 52 Site Data Plume thickness at source Sy m Site Data Saturated aquifer thickness m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials g cm Maximum sand value Consim Effective porosity of aquifer fraction Porosity Calculator Hydraulic gradient fraction Site Data Hydraulic conductivity of aquifer m d Minimum gravel value Consim Longitudinal dispersivity Distance to compliance point
72. ration mg l 1 0E 02 9 44 01 8 23 01 7 30 01 6 60 01 6 07 01 5 64 01 5 30 01 5 00 01 76 01 4 54E 01 4 35E 01 4 19E 01 4 04 01 3 90 01 3 78E 01 3 67E 01 3 57E 01 3 47E 01 3 39E 01 3 31E 01 14 2 2008 12 13 RT Worksheet TPH Aro C21 C35 xlsLevel3 Groundwater
73. ration within receptor dilution only 0 00E 00 mgl 0 Remedial targets worksheet v3 1 18 2 2008 16 02 RT Worksheet Copper xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Environment Level 3 Groundwater See Note LY Agency Input Parameters using pull down menu Variable Value Unit Source Select Method for deriving Partition Co efficient using pull down menu User specified value for partition coefficient 1060 Calculated concentrations for Contaminant Copper Level 1 distance concentration graph Target Concentration 1 40 01 mgl from Level 1 Entry if specify partition coefficient option Soil water partition coefficient Kd 295E 02 Ogata Banks Entry for non polar organic chemicals option E SERI From calculation sheet Select analytical solution click on brown cell below then on pull down menu Fraction of organic carbon in aquifer foc fraction Distance Concentration __ Equations in HRA publication Organic carbon partition coefficient Koc H Entry for ionic organic chemicals option 8 94E0 0 1 0E 00 Approach for simulating vertical dispersion _ Simulate vertical dispersion in 1 direction Sorption co
74. remedial target is 9 9 99 Remedial targets worksheet v3 1 18 2 2008 16 02 RT Worksheet Copper xlsLevel3 Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide any particular facilities or functions You must ensure that the worksheet meets your needs and you remain solely responsible for the competent use of the worksheet You are entirely responsible for the consequences of any use of the worksheet and the Agency provides no warranty about the fitness for purpose or performance of any part of the worksheet We do not promis
75. roundwater flow below site Length of contaminant source in direction of groundwater flow b 2 00E 01 m Site Data Saturated aquifer thickness da 1 32E 00 m Av MG thickness minus Av Groundwater depth Hydraulic Conductivity of aquifer in which dilution occurs K 5 18E 02 m d Minimum Gravel value Consim Hydraulic gradient of water table i 1 98E 03 fraction Site Data Width of contaminant source perpendicular to groundwater flow w 1 50E 02 m Site Data Not used in calculation Background concentration of contaminant in groundwater beneath site Cu 0 00E 00 mg l Define mixing zone depth by specifying or calculating depth using pull down list Calculate Enter mixing zone thickness Mz m Calculated mixing zone thickness Mz 1 32E 00 m Calculated Parameters Dilution Factor DF 1 04E 02 Level 2 Remedial Target 4 49E 01 mg l For comparison with measured pore water concentration This assumes Level 1 Remedial Target is based on Target Concentra or 3 01E 03 mg kg For comparison with measured soil concentration This assumes Level 1 Remedial Target calculated from soil water Additional option Calculation of impact on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 0 00E 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 Remedial targets worksheet v3 1 18 2 2008 15 59 RT Worksheet Chromium xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1
76. s worksheet v3 1 Environment gency 128402 1 05402 8 0E401 6 0E 01 40E401 Calculated concentration mg l 2 0E401 0 0E400 o 20 40 80 Distance m 100 120 Note graph assumes plume disperses vertically in one direction only An alternative solution assuming the centre of the plume is located at the mid depth of the aquifer is presented in the calculation sheets Note This sheet calculates the Level 3 remedial target for groundwater based on the distance to the receptor or compliance located down hydraulic gradient of the source Three solution methods are included the preferred option is Ogata Banks By setting a long travel time it will give the steady state solution which should be used to calculate remedial targets The measured groundwater concentration should be compared with the Level 3 remedial target to determine the need for further action Note if contaminant is not subject to first order degradation then set half life as 9 0E 99 This worksheet should be used if pollutant transport and degradation is best described by first order reaction If degradation is best desribed by an electron limited degradation such as oxidation by O2 NO3 SO4 etc than an alternative solution should be used Calculated concentrations for distance coi Ogata Banks From calcula Distance 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0
77. t on receptor Concentration of contaminant in contaminated discharge entering receptor Cc 00 00 mg l Calculated concentration within receptor dilution only 0 00E 00 mgl 0 14 2 2008 12 10 Remedial targets worksheet v3 1 RT Worksheet TPH Ali C16 C35 xlsLevel2 Soil R amp D Publication 20 Remedial Targets Worksheet Release 3 1 Level 3 Groundwater See Note Input Parameters using pull down menu Variable Value Unit Contaminant Aliphatic C16 C35 Target Concentration 2 73 00 mg l Select analytical solution click on brown cell below then on pull down menu Source Select Method for deriving Partition Co efficient using pull down menu User specified value for partition coefficient Level 1 from Level 1 Entry if specify partition coefficient option Soil water partition coefficient Fraction of organic carbon in aquifer Ogata Banks Equations in HRA publication Organic carbon partition coefficient Entry for ionic organic chemicals option Approach for simulating vertical dispersion Simulate vertical dis persion in 1 direction Sorption coefficient for related species Select nature of decay rate click on brown cell below then on pull down menu Sorption coefficient for ionised species pH value Approach for simulating degradation of pollutants Apply degradation rate to dissolved pollutants only acid dissociation
78. teral to compliance point perpendicular to flow direction 2 0 00E 00 m Vertical dispersivity ay Distance depth to compliance point perpendicular to flow direction 0 00E 00 m Note values of dispersivity must be gt 0 Time since pollutant entered groundwater t 1 00E 100 days variant options only For calculated value assumes 0 1 x az 0 01 x ay 0 001 x Parameters values determined from options Xu amp Eckstein 1995 report ax 0 83 logox az 10 ay 100 are assumed Partition coefficient 4 00E 02 Vkg see options Longitudinal dispersivity 1 57E 00 see options Transverse dispersivity az 1 57 01 see options Vertical dispersivity 1 57 02 see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 2 08E 03 fraction Decayrateused 3 34 104 d Rate of contaminant flow due to retardation 1 42E 03 mid Contaminant concentration at distance x assuming one way vertical dispersion 8 91E 01 mg l Attenuation factor one way vertical dispersion CO CED 1 12E 00 Remedial Targets Remedial Target 9 65E 01 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 20 m Concentration of contaminant at compliance poin 8 91E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an
79. tration graph Ogata Banks From calculation sheet Concentration Distance 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 mg l 1 0E 02 1 00 02 1 00 02 1 00 02 1 00 02 9 99 01 9 97 01 9 93 01 9 89 01 9 83 01 9 77 01 9 69 01 9 62 01 9 53 01 9 45 01 9 36 01 9 27 01 9 18 01 9 09 01 9 00 01 8 91 01 18 2 2008 16 06 RT Worksheet Nickel xisLevel3 Groundwater Environment AW Agency Hydrogeological risk assessment for land contamination Remedial Targets Worksheet Release 3 1 Date of Workbook Issue October 2006 This worksheet has been produced in combination with the document Remedial Targets Methodology Hydrogeological risk assessment for land contamination Environment Agency 2006 Users of this worksheet should always refer to the User Manual to the Remedial Targets Methodology and to relevant guidance on UK legislation and policy in order to understand how this procedure should be applied in an appropriate context Environment Agency 2006 Produced by the Environment Agency s Science Group The calculation of equations in this worksheet has been independently checked by Entec UK Ltd on behalf of the Environment Agency All rights reserved You will not modify reverse compile or otherwise dis assemble the worksheet Liability The Environment Agency does not promise that the worksheet will provide a
80. urce of parameter value Fraction of organic carbon in aquifer foc Initial contaminant concentration in groundwater at plume core 1 00E 02 mg l Half life for degradation of contaminant in water 1 00E 100 days New Zealand Ministry for the Environmeni Soil water partition coefficient Kd 6 70E 01 Calculated decay rate 6 93E 101 days Width of plume in aquifer at source perpendicular to flow 52 1 40E 02 m Site Data Plume thickness at source Sy 1 27 00 m Site Data Saturated aquifer thickness 1 32 00 m MG thickness minus Av Groundwater d Define dispersivity click brown cell and use pull down list Bulk density of aquifer materials 1 81E 00 g cm Maximum sand value Consim ___Dispersivity based on Xu amp Eckstein 1995 Effective porosity of aquifer 3 49E 01 fraction Porosity Calculator Hydraulic gradient 1 98E 03 fraction Site Data Enter value Hydraulic conductivity of aquifer 5 18E 02 mid Minimum gravel value Consim Longitudinal dispersivity ax Distance to compliance point 2 00E 01 m Site Data Transverse dispersivity az Distance lateral to compliance point perpendicular to flow direction 2 0 00E 00 m Vertical dispersivity ay Distance depth to compliance point perpendicular to flow direction 0 00E 00 m Note values of dispersivity must be gt 0 Time since pollutant entered groundwater t 1 00E 100 days variant options only For calculated value assumes 0 1 x az 0 01
81. x ay 0 001 x Parameters values determined from options ee Xu amp Eckstein 1995 report ax 0 83 logox az 10 ay 100 are assumed Partition coefficient 6 70E 01 Vkg see options Longitudinal dispersivity 1 57E 00 m see options Transverse dispersivity 1 57 01 m see options Vertical dispersivity 1 57E 02 m see options Calculated Parameters Variable Groundwater flow velocity 2 94 00 mid Retardation factor 48 02 fraction Decayrateused 1 99E 103 d Rate of contaminant flow due to retardation 8 43E 03 mid Contaminant concentration at distance x assuming one way vertical dispersion 8 91E 01 mg l Attenuation factor one way vertical dispersion CO CED 1 12E 00 Remedial Targets Remedial Target 4 82E 01 mg l For comparison with measured groundwater concentration Ogata Banks Distance to compliance point 20 m Concentration of contaminant at compliance poin 8 91E 01 mg l Ogata Banks after 1 0E 100 days Care should be used when calculating remedial targets using the time variant options as this may result in an overestimate of the remedial target The recommended value for time when calculating the remedial target is 9 9E 99 Remedial targets worksheet v3 1 m m m Environment ency 1 05402 1 08402 4 9 8E401 9 6E401 94E401 928101 Calculated concentration mg l 9 0E401 8 8E401 o 5 10 15 20 25 Distance m

Appendix A - 0 Appendix A SITE LOCATION PLAN & PROPOSED

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Appendix A - 0 Appendix A SITE LOCATION PLAN &amp; PROPOSED

Contents

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Appendix A - 0 Appendix A SITE LOCATION PLAN & PROPOSED