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' TABLE 4 <br /> ANALYTICAL RESULTS OF WATER SAMPLES <br /> parts per million (mg/L) <br /> Sample Ethyl- TPH as TPH as <br />' I D Date Benzene Toluene Benzene Xylene Gasoline Diesel <br /> MW-1 2-22-94 11 890 160 .640 9.2 NA <br /> I MW-2 2-22-94 26 43 38 12 110 NA <br /> MW-3 2-22-94 53 14 490 1400 14 NA <br />' MW-4 2-22-94 56 83 83 27 420 1.2 <br /> Not all <br /> I <br /> of the hydrocarbons in groundwater has not been determined, GeoAudit believes the San <br />' Joaquin PHS/EHD will require further assessment of the groundwater contamination ` <br /> Recommended locations of additional monitoring wells are as follows (1) north of the ✓ <br /> former tank designated Tank A, (2) east of MW-4, (3) west of MW-4 to serve as an up- <br /> gradient well for former tanks designated as Tanks B and C, and (4) south of MW-2 within <br /> the parking area, to serve as an up-gradient well for the former tank designated as Tank A <br /> 6.0 LIMITATIONS <br /> IOur professional services were performed using that degree of care and skill ordinarily <br /> exercised by environmental consultants practicing in this or similar localities The fundings <br />' were based upon analytical results provided by an independent laboratory Evaluations of <br /> the geologic/hydrogeologic conditions at the site for the purpose of this investigation are <br /> made from a limited number of available data points (i a monitoring wells, soil samples) <br />' and subsurface conditions may vary away from these data points No other warranty, <br /> expressed or implied, is made as to the professional recommendations contained in this <br /> report <br /> I <br /> G.I.r.]Ada S.wom l.Q 14 <br /> Lan,-A.-o rq.0 QR12 9017 S <br />