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ATTACHMENT F <br /> TABLE 4.1 <br /> HISTORICAL GROUNDWATER MONITORING DATA AND ANALYTICAL RESULTS <br /> BEGINNING DECEMBER 1,2010 <br /> Former Texaco Service Station <br /> Chevron Site ID 3U9075 <br /> 3978 South Highway 99 <br /> Stockton,California <br /> TPH-MO TPH-DRO <br /> TOC Well Depth to Groundwater with with Total <br /> Elevation Water Elevation TPH-MO SGC TPH-DRO SGC TPH-GRO Benzene Toluene Ethylbenzene Xylenes <br /> Well ID Date (feet MSL) (feet) (feet MSL) (Ng/L) (H92) WIL) (Vg/L) (P91L-) (Ng/-) (P91L) (Pg/L) (V92) <br /> MW-1 12/1/2010 30.74 55.95 -25.21 2,200 - 1,900 - 180 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 30.74 51.13 -20.39 850 990 710 64 500 <0.5 <0.5 <0.5 <0.5 / <br /> 10/14/2011 30.74 51.96 -21.22 490 <40 720 <50 180 <0.5 <0.5 <0.5 <0.5 <br /> MW-2 12/1/2010 30.90 56.08 -25.18 840 - 490 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 30.90 52.28 -21.38 490 190 200 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 30.90 52.10 -21.20 3,000 85 760 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> MW-3 12/1/2010 29.85 55.15 -25.30 1,900 - 1,900 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 29.85 51.34 -21.49 680 410 190 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 29.85 51.17 -21.32 780 66 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> MW-4 12/1/2010 30.12 55.40 -25.28 1,300 - 490 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 30.12 51.58 -21.46 520 490 280 61 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 30.12 51.45 -21.33 4,100 44 84 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> MW-5 12/1/2010 30.96 56.22 -25.26 1,800 - 910 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 30.96 52.38 -21.42 510 180 •250 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 30.96 52.24 -21.28 590 93 77 <50 <50 <0.5 1 <0.5 <0.5 <0.5 <br /> MW-6 12/1/2010 29.70 54.90 -25.20 81 -- 130 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/7/2011 29.70 51.05 -21.35 160 48 60 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 29.70 50.91 -21.21 1,300 <40 120 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> MW-6D 12/1/2010 29.98 55.20 -25.22 7,300 - 4,100 - <50 2 <0.5 <0.5 <0.5 <br /> 4/712011 29.98 51.35 -21.37 7,600 430 3,700 92 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/14/2011 29.98 51.12 -21.14 7,400 420 4,100 120 <50 0.6 1 <0.5 <0.5 1 <0.5 <br /> G:V"ject\ENV\CHEVR0N\309075\6 Deliverables\Perlodic Monaoring\201112SA11\TempPDFWttachments\Atlaehment F-Table 4.xlsx i of 2 <br /> I i <br />