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TABLE I <br /> MSTORICAL GROUNDWATER DATA <br /> Former Discovery Chevrolet <br /> 161511'Street <br /> Tracy, California <br /> WeR.Nod Date TotA Depth to Groundwater Floating Chlorinated <br /> Eley.t Sampled Dq$bl Waters Elevation Product TPM Benzene. Toluene Ethylbenzene Xylenes &ME TPHd O&G Halocarbons <br /> (ft ) (ft.) (f1.) (ft.) (ppb) (ppb) (ppb) (pph) (ppb) (Ppb) (Ppb) (ppb) -(Ppb) <br /> MW-3/ 09116194 19.5 10.49 35.10 - <50 <0.5 <0.5 <0.5 <0.5 as <50 10,00 na <br /> 45.59 03108/95 t9.5 10.65 34.94 - -- <50 <0.5 <0.5 <0.5 <0.5 na 200 <1,00 na <br /> 05117/95 19.5 10.65 34.93 -- - <50 <0.5 <0.5 <0.5 <2 na <50 <1,00 as <br /> 08107195 19.5 11.53 34.06 -- - <50 <0.5 <0.5 <0.5 <0.5 na <50 <1,00 na <br /> 02/20/96 19.5 10.18 35.41 <50 <0.5 <0.5 <0.5 <0.5 na 60 na ad <br /> 05113/96 19.5 10.51 35.08 --- <50 <0.5 <0.5 <0.5 <0.5 na <50 na ad <br /> 0811316 1915 11.48 34.11 - na na as na na na 60 na ad <br /> 11/21/96 19.5 10.46 35.13 na na na na na <5 <50 na ad <br /> 03118197 19.5 10.33 35.26 ---- <50 <0.5 <0.5 <0.5 <0.5 <5 <50 na na <br /> 06112/97 19.5 10.58 35.01 -- - monitored ody;groundwater sample not collected <br /> 09/17/97 19.5 10.72 34.87 - monitored only; groundwater sample not collected <br /> 12118/97 19.5 10.42 35.17 ---- monitored only; groundwater sample rat collected <br /> 03/06198 19.5 9.78 35.81 •-•-- na <0.5 <0.5 <0.5 <2 na <50 na na <br /> MW41 04/04197 20.0 10.75 34.81 ---- 415 1.1 0.5 10.9 35.5 na na na na <br /> 45.56 06112197 20.0 10.89 34.67 -- - <50 0.5 <0.5 2.0 3.7 <5 na na as <br /> 09/17/97 20.0 11.06 34.50 ---- <50 <0.5 <0.5 <0-5 <0.5 <52 na as na <br /> 12/18/97 20.0 10.72 34.84 - - <50 <0.5 <0.5 0.6 <2.0 <5, na na na <br /> 03/06/98 20.0 10.12 35.44 - - <50 0.8 1.1 1.2 4 <5 as na na <br /> MW-51 04104197 20.0 10.21 34.93 --- <50 <0.5 <0.5 <0.5 <0.5 na na na na <br /> 45.14 06/17/97 20.0 10.40 34.74 ---- <50 <0,5 <0.5 <0.5 <0.5 <5 na na as <br /> 09/17/97 20.0 10.55 34.59 ---- <50 <0.5 <0.5 <0.5 <0.5 <52 na na na <br /> 12/18/97 20.0 10.22 34.92 <50 <0.5 <0.5 <0.5 <2.0 <52 na na na <br /> 03/06/98 20.0 9.58 35.56 <50 <0.5 0.6 <0.5 <2.0 <5 na na na <br /> Trip Blank 06/12/97 -•-- ---- - - <50 <0.5 <0.5 <0.5 <0.5 <5 na na na <br /> 09117/97 ---- --- ---- <50 <0.5 <0.5 <0.5 <0.5 <5 na na na <br /> 03/06/98 --- --- ---- --•- as na na as na na na na na <br /> Refer vD Pane 3 for Ea i nation <br /> 8146.04-5 Ngo 2 or 3 <br />