Spreadsheet: 1ee096b7-a687-4983-8fc0-52e565813128
Sheet: GW Data MW-01 to MW-05

 | Sample Name | MW-01[09-03-10] |  |  | MW-01[11-01-10] |  |  | MW-01[02-14-11] |  |  | MW-01[04-05-11] |  |  | MW-01[11-18-11] |  |  | MW-01[12-22-11] |  |  | MW-01[06-20-12] |  |  | MW-01[09-20-12] |  |  | MW-01[03-21-13]
 | Sample Location | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01 |  |  | MW-01
 | Date Collected | 2010-09-03 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-18 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7' |  |  | 4.7'- 16.7'
 | Sample Type | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient
 | Overburden/Bedrock | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 | < | 5 |  | < | 5 |  |  | 5.9 |  | < | 5 |  | < | 5 |  | < | 5 |  |  | 2.1 |  |  | 3.1 |  |  | 3.6
Toluene | 108-88-3 | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  | 8 |  |  | 8.1 |  | < | 5 |  |  | 56 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  |  | 2.1
Xylenes (total) | 1330-20-7 | < | 10 |  | < | 5 |  |  | 22 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 | < | 5 |  | < | 5 |  |  | 8.3 |  |  | 9.5 |  | < | 5 |  |  | 5 |  | < | 2 |  |  | 2.4 |  |  | 4.4
Naphthalene | 91-20-3 | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 | < | 5 |  |  | 10 |  |  | 15 |  |  | 7.6 |  |  | 5.4 |  |  | 5.9 |  |  | 3.4 |  |  | 4.4 |  |  | 6.1
1,2,4-Trimethylbenzene | 95-63-6 |  | 26 |  |  | 9.9 |  | < | 5 |  |  | 7.8 |  |  | 6.8 |  |  | 6 |  | < | 2 |  | < | 2 |  |  | 8.1
1,3,5-Trimethylbenzene | 108-67-8 |  | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  | 6.26 |  |  | 6.4 |  |  | 5.57 |  |  | 6.38 |  |  | 7.15 |  |  | 6.62 |  |  | 6.33 |  |  | 6.42 |  |  | 6.58
Temperature | deg. C |  | 20.23 |  |  | 18.35 |  |  | 10.64 |  |  | 10.13 |  |  | 16.62 |  |  | 14.52 |  |  | 18.21 |  |  | 22.2 |  |  | 8.63
Conductivity | mS/cm |  | 0.348 |  |  | 0.321 |  |  | 0.572 |  |  | 0.856 |  |  | 0.291 |  |  | 0.387 |  |  | 0.374 |  |  | 0.562 |  |  | 0.304
[NAME] | mg/L |  | 0.22 |  |  | 0.72 |  |  | 0.63 |  |  | 0.55 |  |  | 0.33 |  |  | 0.32 |  |  | 0.23 |  |  | 0.55 |  |  | 0.22
Turbidity | NTU |  | 12.7 |  |  | 38.6 |  |  | 60.9 |  |  | 62.2 |  |  | 75.2 |  |  | 52.7 |  |  | 3.91 |  |  | 25 |  |  | 30.7
Oxidation Reduction Potential | mV |  | 3.1 |  |  | 1 |  |  | 30.5 |  |  | -22.7 |  |  | -81.8 |  |  | -100.6 |  |  | -138.1 |  |  | -13.1 |  |  | -3.1
Salinity | % |  | 0.18 |  |  | 0.18 |  |  | 0.39 |  |  | 0.42 |  |  | 0.17 |  |  | 0.23 |  |  | 0.21 |  |  | 0.28 |  |  | 0.21
Total Dissolved Solids | g/L |  | 0.249 |  |  | 0.239 |  |  | 0.509 |  |  | 0.556 |  |  | 0.225 |  |  | 0.316 |  |  | 0.279 |  |  | 0.382 |  |  | 0.287
Volume Purged | L |  | 9 |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 9
Purge rate | ml/min |  | 300 |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-02[09-03-10] |  |  | MW-02[11-01-10] |  |  | MW-02[02-14-11] |  |  | MW-02[04-05-11] |  |  | MW-02[11-18-11] |  |  | MW-02[12-23-11] |  |  | MW-02[06-21-12] |  |  | MW-02[09-20-12] |  |  | MW-02[03-22-13]
 | Sample Location |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME] |  |  | [NAME]
 | Date Collected |  |  | 2010-09-03 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-18 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-22 00:00:00
 | Screen Interval |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8' |  |  | 3.8'- 12.8'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  |  | 5 |  |  | 6.4 |  | < | 5 |  |  | 5.8 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  |  | 9 |  |  | 12 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 270 |  |  | 190 |  |  | 190 |  |  | 170 |  |  | 160 |  |  | 140 |  |  | 160 |  |  | 170 |  |  | 89
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.22 |  |  | 6.31 |  |  | 5.41 |  |  | 6.24 |  |  | 7.08 |  |  | 6.48 |  |  | 6.12 |  |  | 6.17 |  |  | 6.15
Temperature | deg. C |  |  |  | 24.66 |  |  | 17.55 |  |  | 8.48 |  |  | 7.63 |  |  | 16.16 |  |  | 12.52 |  |  | 18.67 |  |  | 23.53 |  |  | 6.56
Conductivity | mS/cm |  |  |  | 0.753 |  |  | 0.651 |  |  | 0.928 |  |  | 1.015 |  |  | 0.681 |  |  | 0.793 |  |  | 0.692 |  |  | 1.242 |  |  | 0.488
[NAME] | mg/L |  |  |  | 0.47 |  |  | 0.44 |  |  | 0.79 |  |  | 0.54 |  |  | 0.24 |  |  | 0.42 |  |  | 0.97 |  |  | 0.47 |  |  | 0.34
Turbidity | NTU |  |  |  | 19.9 |  |  | 36.6 |  |  | 64.8 |  |  | 88.9 |  |  | 52.5 |  |  | 31.3 |  |  | 54.2 |  |  | 71.6 |  |  | 29.6
Oxidation Reduction Potential | mV |  |  |  | -29.8 |  |  | 14.5 |  |  | 28.7 |  |  | 11.7 |  |  | -49.8 |  |  | -51.7 |  |  | -137.7 |  |  | 2.4 |  |  | -31.1
Salinity | % |  |  |  | 0.37 |  |  | 0.37 |  |  | 0.68 |  |  | 0.5 |  |  | 0.41 |  |  | 0.52 |  |  | 0.39 |  |  | 0.64 |  |  | 0.37
Total Dissolved Solids | g/L |  |  |  | 0.493 |  |  | 0.499 |  |  | 0.879 |  |  | 0.66 |  |  | 0.534 |  |  | 0.678 |  |  | 0.511 |  |  | 0.835 |  |  | 0.489
Volume Purged | L |  |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 4.5 |  |  | 9 |  |  | 6.25 |  |  | 3 |  |  | 3
Purge rate | ml/min |  |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 150 |  |  | 300 |  |  | 250 |  |  | 100 |  |  | 100
 | Sample Name |  |  | MW-03[09-03-10] |  |  | MW-13[09-03-10] |  |  | MW-03[11-01-10] |  |  | MW-13[11-01-10] |  |  | MW-03[02-14-11] |  |  | MW-13[02-14-11] |  |  | MW-03[04-05-11] |  |  | MW-13[04-5-11] |  |  | MW-03[11-17-11]
 | Sample Location |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03
 | Date Collected |  |  | 2010-09-03 00:00:00 |  |  | 2010-09-03 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-17 00:00:00
 | Screen Interval |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  |  | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  |  | 7.8 |  |  | 7.6 |  | < | 5
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Xylenes (total) | 1330-20-7 |  |  | < | 10 |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Naphthalene | 91-20-3 |  |  | < | 10 |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 110 |  |  | 130 |  |  | 110 |  |  | 110 |  |  | 74 |  |  | 67 |  |  | 70 |  |  | 70 |  |  | 24
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.27 |  |  | NA |  |  | 6.33 |  |  | NA |  |  | 5.38 |  |  | NA |  |  | 6.27 |  |  | NA |  |  | 6.96
Temperature | deg. C |  |  |  | 28.18 |  |  | NA |  |  | 17.21 |  |  | NA |  |  | 8.86 |  |  | NA |  |  | 8.55 |  |  | NA |  |  | 16.17
Conductivity | mS/cm |  |  |  | 1.335 |  |  | NA |  |  | 0.896 |  |  | NA |  |  | 1.015 |  |  | NA |  |  | 1.471 |  |  | NA |  |  | 0.952
[NAME] | mg/L |  |  |  | 0.85 |  |  | NA |  |  | 0.65 |  |  | NA |  |  | 0.66 |  |  | NA |  |  | 0.36 |  |  | NA |  |  | 0.19
Turbidity | NTU |  |  |  | 28.5 |  |  | NA |  |  | 38.6 |  |  | NA |  |  | 62.6 |  |  | NA |  |  | 79.2 |  |  | NA |  |  | 89.6
Oxidation Reduction Potential | mV |  |  |  | -10.4 |  |  | NA |  |  | 14.4 |  |  | NA |  |  | 6.6 |  |  | NA |  |  | -22.9 |  |  | NA |  |  | -129.4
Salinity | % |  |  |  | 0.62 |  |  | NA |  |  | 0.52 |  |  | NA |  |  | 0.74 |  |  | NA |  |  | 0.74 |  |  | NA |  |  | 0.57
Total Dissolved Solids | g/L |  |  |  | 0.818 |  |  | NA |  |  | 0.684 |  |  | NA |  |  | 0.954 |  |  | NA |  |  | 0.956 |  |  | NA |  |  | 0.745
Volume Purged | L |  |  |  | 3 |  |  | NA |  |  | 3 |  |  | NA |  |  | 3 |  |  | NA |  |  | 3 |  |  | NA |  |  | 4.5
Purge rate | ml/min |  |  |  | 100 |  |  | NA |  |  | 100 |  |  | NA |  |  | 100 |  |  | NA |  |  | 100 |  |  | NA |  |  | 150
 | Sample Name |  |  | MW-23[11-17-11] |  |  | MW-03[12-23-11] |  |  | MW-23[12-23-11] |  |  | MW-03[06-21-12] |  |  | MW-23[06-21-12] |  |  | MW-03[09-20-12] |  |  | MW-23[09-20-12] |  |  | MW-03[03-21-13] |  |  | MW-23[03-21-13]
 | Sample Location |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03 |  |  | MW-03
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8' |  |  | 3.8'- 13.8'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 24 |  |  | 41 |  |  | 41 |  |  | 82 |  |  | 79 |  |  | 90 |  |  | 120 |  |  | 41 |  |  | 37
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
TOC | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Ferrous Iron | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Nitrate as Nitrogen | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Sulfate | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Ammonia Nitrogen | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
[NAME] | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Total Dissolved Solids | mg/L |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
pH | s.u. |  |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA |  |  | NS |  |  | NA
Field Parameters (units as noted)
pH | std. units |  |  |  | NA |  |  | 6.33 |  |  | NA |  |  | 6.18 |  |  | NA |  |  | 6.2 |  |  | NA |  |  | 6.32 |  |  | NA
Temperature | deg. C |  |  |  | NA |  |  | 13.24 |  |  | NA |  |  | 19.42 |  |  | NA |  |  | 23.05 |  |  | NA |  |  | 5.24 |  |  | NA
Conductivity | mS/cm |  |  |  | NA |  |  | 1.106 |  |  | NA |  |  | 0.962 |  |  | NA |  |  | 1.526 |  |  | NA |  |  | 0.533 |  |  | NA
[NAME] | mg/L |  |  |  | NA |  |  | 1.15 |  |  | NA |  |  | 0.72 |  |  | NA |  |  | 0.55 |  |  | NA |  |  | 0.49 |  |  | NA
Turbidity | NTU |  |  |  | NA |  |  | 44.4 |  |  | NA |  |  | 15.1 |  |  | NA |  |  | 83 |  |  | NA |  |  | 19.7 |  |  | NA
Oxidation Reduction Potential | mV |  |  |  | NA |  |  | -43.1 |  |  | NA |  |  | -93.3 |  |  | NA |  |  | 1.7 |  |  | NA |  |  | -7.4 |  |  | NA
Salinity | % |  |  |  | NA |  |  | 0.72 |  |  | NA |  |  | 0.53 |  |  | NA |  |  | 0.8 |  |  | NA |  |  | 0.42 |  |  | NA
Total Dissolved Solids | g/L |  |  |  | NA |  |  | 0.928 |  |  | NA |  |  | 0.697 |  |  | NA |  |  | 1.032 |  |  | NA |  |  | 0.558 |  |  | NA
Volume Purged | L |  |  |  | NA |  |  | 9 |  |  | NA |  |  | 7.5 |  |  | NA |  |  | 3 |  |  | NA |  |  | 3 |  |  | NA
Purge rate | ml/min |  |  |  | NA |  |  | 300 |  |  | NA |  |  | 250 |  |  | NA |  |  | 100 |  |  | NA |  |  | 100 |  |  | NA
 | Sample Name |  |  | MW-04[09-03-10] |  |  | MW-04[11-01-10] |  |  | MW-04[02-14-11] |  |  | MW-04[04-05-11] |  |  | MW-04[11-18-11] |  |  | MW-04[12-23-11] |  |  | MW-04[06-21-12] |  |  | MW-04[09-20-12] |  |  | MW-04[03-22-13]
 | Sample Location |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04 |  |  | MW-04
 | Date Collected |  |  | 2010-09-03 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-18 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-22 00:00:00
 | Screen Interval |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0' |  |  | 4.0'- 14.0'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet |  |  | Downgradiet
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  |  | 24 |  |  | 9.8 |  |  | 17 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  |  | 3.8
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  |  | 7.6 |  | < | 5 |  |  | 9.5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 10 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 71 |  |  | 57 |  |  | 39 |  |  | 26 |  |  | 52 |  |  | 24 |  |  | 35 |  |  | 44 |  |  | 23
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.22 |  |  | 6.29 |  |  | 5.47 |  |  | 6.5 |  |  | 7.12 |  |  | 6.45 |  |  | 6.24 |  |  | 6.23 |  |  | 6.32
Temperature | deg. C |  |  |  | 26.5 |  |  | 17 |  |  | 9 |  |  | 8.06 |  |  | 16.3 |  |  | 12.44 |  |  | 18.01 |  |  | 22.71 |  |  | 6.69
Conductivity | mS/cm |  |  |  | 1.514 |  |  | 1.147 |  |  | 2.288 |  |  | 2.529 |  |  | 0.861 |  |  | 1.241 |  |  | 1.116 |  |  | 1.89 |  |  | 0.747
[NAME] | mg/L |  |  |  | 0.45 |  |  | 0.46 |  |  | 0.42 |  |  | 0.42 |  |  | 0.42 |  |  | 0.38 |  |  | 0.18 |  |  | 0.43 |  |  | 0.27
Turbidity | NTU |  |  |  | 47.4 |  |  | 69.4 |  |  | 90 |  |  | 97.8 |  |  | 31.8 |  |  | 42.6 |  |  | 34.8 |  |  | 19.4 |  |  | 70.8
Oxidation Reduction Potential | mV |  |  |  | 5.4 |  |  | -4.3 |  |  | -19.3 |  |  | -56.2 |  |  | -12.9 |  |  | -110.7 |  |  | -131.4 |  |  | -23.6 |  |  | -51.3
Salinity | % |  |  |  | 0.74 |  |  | 0.68 |  |  | 1.73 |  |  | 1.31 |  |  | 0.51 |  |  | 0.83 |  |  | 0.65 |  |  | 1.01 |  |  | 0.57
Total Dissolved Solids | g/L |  |  |  | 0.957 |  |  | 0.88 |  |  | 2.143 |  |  | 1.639 |  |  | 0.671 |  |  | 1.061 |  |  | 0.837 |  |  | 1.283 |  |  | 0.746
Volume Purged | L |  |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 4.5 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 6
Purge rate | ml/min |  |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 150 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 200
 | Sample Name |  |  | MW-05[09-03-10] |  |  | MW-05[11-01-10] |  |  | MW-05[02-14-11] |  |  | MW-05[04-05-11] |  |  | MW-05[11-18-11] |  |  | MW-05[12-23-11] |  |  | MW-05[06-21-12] |  |  | MW-05[09-20-12] |  |  | MW-05[03-22-13]
 | Sample Location |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05 |  |  | MW-05
 | Date Collected |  |  | 2010-09-03 00:00:00 |  |  | 2010-11-01 00:00:00 |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-18 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-22 00:00:00
 | Screen Interval |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9' |  |  | 3.9'- 13.9'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  |  | 200 |  |  | 130 |  |  | 190 |  |  | 260 |  |  | 7.2 |  |  | 23 |  |  | 12 |  | < | 2 |  |  | 120
Toluene | 108-88-3 |  |  |  | 5 |  |  | 5.3 |  | < | 5 |  |  | 5.4 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  |  | 2.4
Ethylbenzene | 100-41-4 |  |  |  | 18 |  |  | 16 |  |  | 42 |  |  | 61 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  |  | 2.8
Xylenes (total) | 1330-20-7 |  |  | < | 10 |  | < | 5 |  |  | 6 |  |  | 7.6 |  | < | 5 |  | < | 5 |  | < | 2 |  |  | 2 |  |  | 26
Cumene | 98-82-8 |  |  |  | 15 |  |  | 20 |  |  | 36 |  |  | 49 |  |  | 5.8 |  |  | 12 |  |  | 8.2 |  |  | 4.8 |  |  | 12
Naphthalene | 91-20-3 |  |  | < | 10 |  | < | 5 |  | < | 5 |  |  | 5.8 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 330 |  |  | 250 |  |  | 260 |  |  | 270 |  |  | 270 |  |  | 260 |  |  | 260 |  |  | 230 |  |  | 260
1,2,4-Trimethylbenzene | 95-63-6 |  |  |  | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  |  | 2.8 |  |  | 3 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  |  | 2.3 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.42 |  |  | 6.62 |  |  | 5.64 |  |  | 6.7 |  |  | 7.19 |  |  | 6.81 |  |  | 6.46 |  |  | 6.47 |  |  | 6.66
Temperature | deg. C |  |  |  | 26.62 |  |  | 19.03 |  |  | 9.65 |  |  | 9.09 |  |  | 17.75 |  |  | 14.39 |  |  | 17.21 |  |  | 22.38 |  |  | 7.58
Conductivity | mS/cm |  |  |  | 1.185 |  |  | 0.856 |  |  | 0.908 |  |  | 1.241 |  |  | 0.699 |  |  | 0.901 |  |  | 0.689 |  |  | 1.109 |  |  | 0.446
[NAME] | mg/L |  |  |  | 0.38 |  |  | 0.38 |  |  | 0.32 |  |  | 0.23 |  |  | 0.15 |  |  | 0.23 |  |  | 1.34 |  |  | 0.48 |  |  | 0.31
Turbidity | NTU |  |  |  | 24.3 |  |  | 29.4 |  |  | 61.8 |  |  | 41.9 |  |  | 32.9 |  |  | 49.6 |  |  | 26 |  |  | 36 |  |  | 72.5
Oxidation Reduction Potential | mV |  |  |  | -88.7 |  |  | -99 |  |  | -117.4 |  |  | -119.6 |  |  | -152.1 |  |  | -118.6 |  |  | -91 |  |  | -33.9 |  |  | -36.5
Salinity | % |  |  |  | 0.57 |  |  | 0.48 |  |  | 0.65 |  |  | 0.62 |  |  | 0.4 |  |  | 0.56 |  |  | 0.38 |  |  | 0.58 |  |  | 0.33
Total Dissolved Solids | g/L |  |  |  | 0.747 |  |  | 0.628 |  |  | 0.835 |  |  | 0.803 |  |  | 0.528 |  |  | 0.734 |  |  | 0.499 |  |  | 0.758 |  |  | 0.434
Volume Purged | L |  |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 4.5 |  |  | 9 |  |  | 7.5 |  |  | 3 |  |  | 6
Purge rate | ml/min |  |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 100 |  |  | 150 |  |  | 300 |  |  | 250 |  |  | 100 |  |  | 200
 | Sample Name |  |  | MW-06[02-14-11] |  |  | MW-06[04-05-11] |  |  | MW-06[11-17-11] |  |  | MW-06[12-22-11] |  |  | MW-06[06-20-12] |  |  | MW-06[09-20-12] |  |  | MW-06[03-21-13]
 | Sample Location |  |  | MW-06 |  |  | MW-06 |  |  | MW-06 |  |  | MW-06 |  |  | MW-06 |  |  | MW-06 |  |  | MW-06
 | Date Collected |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5' |  |  | 4.0'- 13.5'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 5.82 |  |  | 6.35 |  |  | 7.03 |  |  | 6.61 |  |  | 6.36 |  |  | 6.29 |  |  | 6.54
Temperature | deg. C |  |  |  | 7.95 |  |  | 7.75 |  |  | 17.55 |  |  | 14.03 |  |  | 19.99 |  |  | 20.42 |  |  | 56.52
Conductivity | mS/cm |  |  |  | 0.248 |  |  | 0.342 |  |  | 0.143 |  |  | 0.16 |  |  | 0.158 |  |  | 0.339 |  |  | 0.154
[NAME] | mg/L |  |  |  | 1.5 |  |  | 0.2 |  |  | 0.39 |  |  | 0.38 |  |  | 0.17 |  |  | 0.39 |  |  | 0.24
Turbidity | NTU |  |  |  | 74.4 |  |  | 81.6 |  |  | 98.7 |  |  | 51.8 |  |  | 40.2 |  |  | 20.6 |  |  | 10.3
Oxidation Reduction Potential | mV |  |  |  | 72.8 |  |  | 65.7 |  |  | -37 |  |  | -41.4 |  |  | -162 |  |  | 5.5 |  |  | -3.9
Salinity | % |  |  |  | 0.18 |  |  | 0.16 |  |  | 0.08 |  |  | 0.09 |  |  | 0.08 |  |  | 0.16 |  |  | 0.11
Total Dissolved Solids | g/L |  |  |  | 0.239 |  |  | 0.222 |  |  | 0.108 |  |  | 0.133 |  |  | 0.114 |  |  | 0.22 |  |  | 0.155
Volume Purged | L |  |  |  | 12 |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 10 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-07[02-14-11] |  |  | MW-07[04-05-11] |  |  | MW-07[11-17-11] |  |  | MW-07[12-22-11] |  |  | MW-07[06-20-12] |  |  | MW-07[09-20-12] |  |  | MW-07[03-21-13]
 | Sample Location |  |  | MW-07 |  |  | MW-07 |  |  | MW-07 |  |  | MW-07 |  |  | MW-07 |  |  | MW-07 |  |  | MW-07
 | Date Collected |  |  | 2011-02-14 00:00:00 |  |  | 2011-04-05 00:00:00 |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3' |  |  | 4.3'- 15.3'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source |  |  | Source
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 77 |  |  | 78 |  |  | 64 |  |  | 59 |  |  | 69 |  |  | 71 |  |  | 40
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 7.57 |  |  | 6.42 |  |  | 7.01 |  |  | 6.52 |  |  | 6.13 |  |  | 6.19 |  |  | 6.42
Temperature | deg. C |  |  |  | 9.46 |  |  | 8.63 |  |  | 15.61 |  |  | 12.98 |  |  | 17.18 |  |  | 20.25 |  |  | 7.01
Conductivity | mS/cm |  |  |  | 2.791 |  |  | 0.713 |  |  | 0.405 |  |  | 0.541 |  |  | 0.481 |  |  | 0.772 |  |  | 0.345
[NAME] | mg/L |  |  |  | 2.02 |  |  | 0.55 |  |  | 0.23 |  |  | 0.38 |  |  | 0.26 |  |  | 0.6 |  |  | 0.31
Turbidity | NTU |  |  |  | 60.6 |  |  | 64.6 |  |  | 74.5 |  |  | 41.8 |  |  | 59.2 |  |  | 28.2 |  |  | 7.94
Oxidation Reduction Potential | mV |  |  |  | 111.6 |  |  | 27.8 |  |  | -56.2 |  |  | -49.9 |  |  | -158.7 |  |  | -29.1 |  |  | 2.7
Salinity | % |  |  |  | 2.1 |  |  | 0.35 |  |  | 0.24 |  |  | 0.35 |  |  | 0.28 |  |  | 0.42 |  |  | 0.25
Total Dissolved Solids | g/L |  |  |  | 2.567 |  |  | 0.464 |  |  | 0.321 |  |  | 0.457 |  |  | 0.368 |  |  | 0.551 |  |  | 0.341
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-08[11-17-11] |  |  | MW-08[12-22-11] |  |  | MW-08[06-20-12] |  |  | MW-08[09-20-12] |  |  | MW-08[03-21-13]
 | Sample Location |  |  | MW-08 |  |  | MW-08 |  |  | MW-08 |  |  | MW-08 |  |  | MW-08
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 2.3'- 13.3' |  |  | 2.3'- 13.3' |  |  | 2.3'- 13.3' |  |  | 2.3'- 13.3' |  |  | 2.3'- 13.3'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  | < | 5 |  | < | 5 |  |  | 4.5 |  |  | 6.6 |  |  | 3.8
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.9 |  |  | 6.56 |  |  | 6.4 |  |  | 6.37 |  |  | 6.33
Temperature | deg. C |  |  |  | 12.9 |  |  | 9.74 |  |  | 19.99 |  |  | 21.09 |  |  | 3.49
Conductivity | mS/cm |  |  |  | 1.202 |  |  | 1.398 |  |  | 1.379 |  |  | 1.653 |  |  | 0.646
[NAME] | mg/L |  |  |  | 0.31 |  |  | 0.32 |  |  | 2.05 |  |  | 0.69 |  |  | 0.39
Turbidity | NTU |  |  |  | 91.6 |  |  | 47.6 |  |  | 44.7 |  |  | 51.3 |  |  | 12.8
Oxidation Reduction Potential | mV |  |  |  | 14.1 |  |  | -24.2 |  |  | -133.5 |  |  | -30.7 |  |  | -30.6
Salinity | % |  |  |  | 0.79 |  |  | 1.01 |  |  | 0.77 |  |  | 0.89 |  |  | 0.54
Total Dissolved Solids | g/L |  |  |  | 1.016 |  |  | 1.285 |  |  | 0.991 |  |  | 1.146 |  |  | 0.713
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 8.75 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-09[11-17-11] |  |  | MW-09[12-22-11] |  |  | MW-09[06-20-12] |  |  | MW-09[09-20-12] |  |  | MW-09[03-21-13]
 | Sample Location |  |  | MW-09 |  |  | MW-09 |  |  | MW-09 |  |  | MW-09 |  |  | MW-09
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 3.2'- 11.2' |  |  | 3.2'- 11.2' |  |  | 3.2'- 11.2' |  |  | 3.2'- 11.2' |  |  | 3.2'- 11.2'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 38 |  |  | 9.6 |  |  | 5.1 |  |  | 36 |  | < | 2
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.92 |  |  | 6.53 |  |  | 6.46 |  |  | 6.12 |  |  | 6.17
Temperature | deg. C |  |  |  | 13.99 |  |  | 11.35 |  |  | 28.28 |  |  | 18.51 |  |  | 3.81
Conductivity | mS/cm |  |  |  | 1.178 |  |  | 1.339 |  |  | 1.768 |  |  | 1.397 |  |  | 0.652
[NAME] | mg/L |  |  |  | 0.89 |  |  | 1.7 |  |  | 0.57 |  |  | 0.95 |  |  | 4.21
Turbidity | NTU |  |  |  | 59.9 |  |  | 42.6 |  |  | 19.1 |  |  | 60 |  |  | 32.7
Oxidation Reduction Potential | mV |  |  |  | 17.4 |  |  | -24.1 |  |  | -105.5 |  |  | -42.3 |  |  | -17.2
Salinity | % |  |  |  | 0.75 |  |  | 0.92 |  |  | 0.83 |  |  | 0.81 |  |  | 0.54
Total Dissolved Solids | g/L |  |  |  | 0.969 |  |  | 1.177 |  |  | 1.081 |  |  | 1.038 |  |  | 0.713
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-10[11-17-11] |  |  | MW-10[12-22-11] |  |  | MW-10[06-20-12] |  |  | MW-10[09-20-12] |  |  | MW-10[03-21-13]
 | Sample Location |  |  | MW-10 |  |  | MW-10 |  |  | MW-10 |  |  | MW-10 |  |  | MW-10
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 3.5'- 15.5' |  |  | 3.5'- 15.5' |  |  | 3.5'- 15.5' |  |  | 3.5'- 15.5' |  |  | 3.5'- 15.5'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 14 |  |  | 7 |  |  | 16 |  |  | 34 |  |  | 8.4
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 5.88 |  |  | 6.65 |  |  | 6.34 |  |  | 6.26 |  |  | 69.31
Temperature | deg. C |  |  |  | 11.86 |  |  | 12.48 |  |  | 22.59 |  |  | 19.57 |  |  | 5.68
Conductivity | mS/cm |  |  |  | 1.079 |  |  | 1.444 |  |  | 1.41 |  |  | 1.69 |  |  | 0.72
[NAME] | mg/L |  |  |  | 0.35 |  |  | 0.66 |  |  | 0.61 |  |  | 0.62 |  |  | 0.35
Turbidity | NTU |  |  |  | 94.8 |  |  | 36.2 |  |  | 76.2 |  |  | 42.3 |  |  | 64.9
Oxidation Reduction Potential | mV |  |  |  | -18 |  |  | -31.2 |  |  | -156.2 |  |  | -38.7 |  |  | -1.7
Salinity | % |  |  |  | 0.73 |  |  | 0.97 |  |  | 0.74 |  |  | 0.96 |  |  | 0.57
Total Dissolved Solids | g/L |  |  |  | 0.937 |  |  | 1.234 |  |  | 0.963 |  |  | 1.226 |  |  | 0.742
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 17.5 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-11[11-18-11] |  |  | MW-11[12-23-11] |  |  | MW-11[06-21-12] |  |  | MW-11[09-20-12] |  |  | MW-11[03-22-13]
 | Sample Location |  |  | MW-11 |  |  | MW-11 |  |  | MW-11 |  |  | MW-11 |  |  | MW-11
 | Date Collected |  |  | 2011-11-18 00:00:00 |  |  | 2011-12-23 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-22 00:00:00
 | Screen Interval |  |  | 4.2'- 11.2' |  |  | 4.2'- 11.2' |  |  | 4.2'- 11.2' |  |  | 4.2'- 11.2' |  |  | 4.2'- 11.2'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient |  |  | Upgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  |  | 29 |  |  | 42 |  |  | 25 |  |  | 16 |  |  | 54
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  |  | 2.6 |  |  | 2.5 |  |  | 3
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  |  | 2.5 |  |  | 2.6 |  |  | 4.9
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  |  | 2.4 |  |  | 2.6 |  |  | 3.4
Cumene | 98-82-8 |  |  |  | 42 |  |  | 68 |  |  | 59 |  |  | 55 |  |  | 79
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 86 |  |  | 81 |  |  | 89 |  |  | 100 |  |  | 62
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 7.22 |  |  | 7.01 |  |  | 6.65 |  |  | 6.66 |  |  | 6.82
Temperature | deg. C |  |  |  | 16.19 |  |  | 10.39 |  |  | 20.43 |  |  | 22.65 |  |  | 5.19
Conductivity | mS/cm |  |  |  | 0.743 |  |  | 0.929 |  |  | 0.845 |  |  | 1.13 |  |  | 0.488
[NAME] | mg/L |  |  |  | 0.18 |  |  | 0.28 |  |  | 0.22 |  |  | 0.65 |  |  | 0.31
Turbidity | NTU |  |  |  | 42.5 |  |  | 36.5 |  |  | 5.43 |  |  | 27.6 |  |  | 35.2
Oxidation Reduction Potential | mV |  |  |  | -159.9 |  |  | -99.8 |  |  | -139.5 |  |  | -66.4 |  |  | -34.8
Salinity | % |  |  |  | 0.44 |  |  | 0.65 |  |  | 0.46 |  |  | 0.59 |  |  | 0.38
Total Dissolved Solids | g/L |  |  |  | 0.581 |  |  | 0.838 |  |  | 0.602 |  |  | 0.768 |  |  | 0.511
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 6
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 200
 | Sample Name |  |  | MW-12[11-17-11] |  |  | MW-12[12-22-11] |  |  | MW-12[06-20-12] |  |  | MW-12[09-20-12] |  |  | MW-12[03-21-13]
 | Sample Location |  |  | MW-12 |  |  | MW-12 |  |  | MW-12 |  |  | MW-12 |  |  | MW-12
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-20 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 3.9'- 12.9' |  |  | 3.9'- 12.9' |  |  | 3.9'- 12.9' |  |  | 3.9'- 12.9' |  |  | 3.9'- 12.9'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site |  |  | Off-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 410 |  |  | 320 |  |  | 240 |  |  | 220 |  |  | 230
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 6.23 |  |  | 6.95 |  |  | 6.64 |  |  | 6.71 |  |  | 6.57
Temperature | deg. C |  |  |  | 13.92 |  |  | 12.2 |  |  | 20.99 |  |  | 19.81 |  |  | 5.12
Conductivity | mS/cm |  |  |  | 0.56 |  |  | 0.719 |  |  | 0.676 |  |  | 0.846 |  |  | 0.406
[NAME] | mg/L |  |  |  | 0.33 |  |  | 0.3 |  |  | 0.33 |  |  | 0.57 |  |  | 0.41
Turbidity | NTU |  |  |  | 67.5 |  |  | 40.8 |  |  | 53.2 |  |  | 29.2 |  |  | 30.8
Oxidation Reduction Potential | mV |  |  |  | -136.3 |  |  | -122.9 |  |  | -144.9 |  |  | -30.3 |  |  | 11.1
Salinity | % |  |  |  | 0.35 |  |  | 0.47 |  |  | 0.36 |  |  | 0.46 |  |  | 0.32
Total Dissolved Solids | g/L |  |  |  | 0.461 |  |  | 0.618 |  |  | 0.476 |  |  | 0.609 |  |  | 0.427
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 7.5 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
 | Sample Name |  |  | MW-13[11-17-11] |  |  | MW-13[12-22-11] |  |  | MW-13[06-20-12] |  |  | MW-13[09-20-12] |  |  | MW-13[03-21-13]
 | Sample Location |  |  | MW-13 |  |  | MW-13 |  |  | MW-13 |  |  | MW-13 |  |  | MW-13
 | Date Collected |  |  | 2011-11-17 00:00:00 |  |  | 2011-12-22 00:00:00 |  |  | 2012-06-21 00:00:00 |  |  | 2012-09-20 00:00:00 |  |  | 2013-03-21 00:00:00
 | Screen Interval |  |  | 3.7'- 15.7' |  |  | 3.7'- 15.7' |  |  | 3.7'- 15.7' |  |  | 3.7'- 15.7' |  |  | 3.7'- 15.7'
 | Sample Type |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation |  |  | Investigation
 | On-Site/Off-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site |  |  | On-Site
 | Upgradient/Source/Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient |  |  | Downgradient
 | Overburden/Bedrock |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden |  |  | Overburden
Chemical | CAS No.
Unleaded Gasoline Parameters (ug/L)
Benzene | 71-43-2 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Toluene | 108-88-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Ethylbenzene | 100-41-4 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Xylenes (total) | 1330-20-7 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Cumene | 98-82-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Naphthalene | 91-20-3 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Methyl tert-butyl ether | 1634-04-4 |  |  |  | 63 |  |  | 58 |  |  | 47 |  |  | 74 |  |  | 34
1,2,4-Trimethylbenzene | 95-63-6 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
1,3,5-Trimethylbenzene | 108-67-8 |  |  | < | 5 |  | < | 5 |  | < | 2 |  | < | 2 |  | < | 2
Natural Attenuation Parameters (units as noted)
Methane | ug/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
TOC | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ferrous Iron | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Nitrate as Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Sulfate | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Ammonia Nitrogen | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
[NAME] | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Total Dissolved Solids | mg/L |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
pH | s.u. |  |  |  | NS |  |  | NS |  |  | NS |  |  | NS |  |  | NS
Field Parameters (units as noted)
pH | std. units |  |  |  | 7.16 |  |  | 6.81 |  |  | 6.7 |  |  | 6.59 |  |  | 6.46
Temperature | deg. C |  |  |  | 17.8 |  |  | 14.99 |  |  | 17.07 |  |  | 22.67 |  |  | 7.87
Conductivity | mS/cm |  |  |  | 0.756 |  |  | 1.137 |  |  | 0.743 |  |  | 1.335 |  |  | 1.001
[NAME] | mg/L |  |  |  | 0.16 |  |  | 0.21 |  |  | 0.16 |  |  | 0.39 |  |  | 0.22
Turbidity | NTU |  |  |  | 107.7 |  |  | 91.6 |  |  | 40.4 |  |  | 22.2 |  |  | 40.9
Oxidation Reduction Potential | mV |  |  |  | -69.2 |  |  | -88.9 |  |  | -145.9 |  |  | -11 |  |  | -3.2
Salinity | % |  |  |  | 0.43 |  |  | 0.7 |  |  | 0.43 |  |  | 0.7 |  |  | 0.75
Total Dissolved Solids | g/L |  |  |  | 0.568 |  |  | 0.909 |  |  | 0.57 |  |  | 0.908 |  |  | 0.967
Volume Purged | L |  |  |  | 9 |  |  | 9 |  |  | 13.75 |  |  | 9 |  |  | 9
Purge rate | ml/min |  |  |  | 300 |  |  | 300 |  |  | 250 |  |  | 300 |  |  | 300
Notes:
NA - not applicable
NS - not sampled
NOC - Not of Concern (as defined by the [NAME] and [NAME])