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n <br /> MPDS-UN5098-03 <br /> July 28 , 1994 <br /> Page 2 <br /> i <br /> 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 Table 3 The concentrations of Total Petroleum Hydrocarbons <br /> (TPH) as gasoline and benzene detected in the ground water samples <br /> collected from the Unocal wells this quarter are shown on the attached <br /> Figure 2 Copies of the laboratory analytical results and the Chain of <br /> Custody documentation for the Unocal wells are attached to 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, and to the Regional Water Quality Control Board, <br /> Central Valley Region <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 /> Sarki Karkarian r— -- <br /> Staff Engineer <br /> W EG If-3� �s <br /> CEGB KT) ' <br /> Joel G Greger, C E.G BOUT.Ff I �' <br /> Senior Engineering Geologist <br /> l�pL�u,k� <br /> License No EG 1633 C' <br /> ' y <br /> Exp Date 8/31/96 T <br /> /dlh <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 />