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Mr.Harlin Knoll August 18,2000 <br /> San Joaquin County Public Health Services Project No.2007-25D0 O1 <br /> Environmental Health Division <br /> Page 3 <br /> and'�S-2. TBA was detected in the samples collected from M W-$ S-1, S-2 at <br /> concentrations of 210, 5,000, and 400 µg/l, respectively. TAME was detected in the <br /> samples collected from MW-8, S-1, and S-2 at concentrations of 11, 18, and 47 pg/l, w <br /> respectively. <br /> CONCLUSIONS <br /> The 'highest concentration of TPHG, TBA, MTBE, and benzene were detected in the <br /> sample collected from S-1 and the highest concentrations of toluene, ethylbenzene, total <br /> xylenes and TAME were detected in the sample collected from S-2. Dissolved phase <br /> petroleum hydrocarbons were also detected in the samples collected from MW-3 and <br /> MW=B. Groundwater flow is toward the south with an average gradient of 0.004 ft./ft. <br /> l <br /> STATEMENT OF LIMITATIONS <br /> The services described in this report were performed consistent with the generally <br /> F <br /> accepted professional consulting principals and practices. No other warranty, expressed <br /> or implied, is made. These services were performed consistent with our agreement with <br /> our client. This report is solely for the use of our client unless otherwise noted. Any <br /> reliance on this report by a third party is at such party's sole risk. <br /> I <br /> 1 If you have any questions, please contact Gowri Kowtha at (530) 676-6001. <br /> Sincerely, <br /> C <br /> 5TRATU5 ENVIRONMENTAL, wc. <br /> IG <br /> G wri owtha a nson, R.G. <br /> r rojeat anager of Geologist <br /> E <br /> Attachments: Table 1 Historical Groundwater Elevation Data Second Quarter <br /> 2000 <br /> Table 2 Historical Analytical Data Second Quarter 2000 <br /> Figure 1 Site Location Map f <br /> Figure 2 Groundwater Elevation Contour Map 5/17/00 <br /> Appendix A Field Data Sheets <br /> f Appendix B Sampling and Analysis Procedures <br /> Appendix C Certified Analytical Reports <br /> Chain-of-Custody Records for Groundwater Samples <br /> { cc: Srikanth Dasappa, USA Gasoline Corporation <br /> CAMy DoCumenf0JSA Gas 1in6065%Q1rIyN065g200-dcc Sr�f;rUrJ' <br />