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MPDS-UN5098-04 <br /> October 18, 1994 <br /> Page 2 <br /> 1P ANALYTICAL RESULTS <br /> The ground water samples collected from the Unocal wells were analyzed <br /> at Sequoia Analytical Laboratory and were accompanied by properly <br /> executed Chain of Custody documentation The analytical results of the <br /> ground water samples collected from the Unocal wells to date are summa- <br /> rized in Tables 3 and 4 The concentrations of Total Petroleum <br /> Hydrocarbons (TPH) as gasoline and benzene detected in the ground water <br /> samples collected from the Unocal wells this quarter are shown on the <br /> attached Figure 2 Copies of the laboratory analytical results and the <br /> Chain of Custody documentation for the Unocal wells are attached to <br /> this report <br /> LIMITATIONS <br /> Environmental changes , either naturally-occurring or artificially- <br /> induced, may cause changes in ground water levels and flow paths, <br /> thereby changing the extent and concentration of any contaminants <br /> DISTRIBUTION <br /> A copy of this report should be sent to the San Joaquin County Public <br /> Health Services, to the Regional Water Quality Control Board, Central <br /> Valley Region, and to Mr Frank Muramoto of Environmental Audit , Inc <br /> If you have any questions regarding this report, please do not hesitate <br /> to call at (510) 602-5120 <br /> Sincerely, <br /> MPDS Services, Inc <br /> Sark Karkarian <br /> Sta f EngineerARM <br /> ��' usi1 <br /> 4 <br /> Joel G Greger, C E G <br /> Senior Engineering GeologistCA�f' <br /> License No EG 1633 <br /> Exp Date 8/31/96 <br /> /bp <br /> Attachments Tables 1 through 4 <br /> Location Map <br /> Figures 1 & 2 <br /> Laboratory Analyses <br /> Chain of Custody documentation <br /> cc Mr Thomas J Berkins, Kaprealian Engineering, Inc <br />