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1 <br /> Mr Travis Bryant October 5, 2000 <br /> • Page 3 Project No 2002-1426-01 <br /> Histoncal and second quarter 2000 groundwater analytical data are summarized in Tables 1 & 2 <br /> Certified analytical reports and chain-of-custody records are included in Appendix C <br /> Petroleum hydrocarbons were detected in the samples collected from both monitoring wells <br /> TPHG was detected in MW-1 at 0 076 milligrams per liter (mg/1) and in MW-2 at 0 11 mg/l <br /> Benzene and MTBE were not reported in samples collected from either well TBA was reported <br /> at 12 micrograms per liter in well MW-2 <br /> CONCLUSIONS <br /> Low concentrations of petroleum hydrocarbons were detected in both monitoring wells during <br /> the second quarter 2000 sampling event Petroleum hydrocarbon concentrations have declined <br /> since the Initial sampling event performed in March 1997 <br /> STATEMENT OF LIMITATIONS <br /> The services described in this report were performed consistent with generally accepted <br /> professional consulting principles and practices No other warranty, expressed or Implied, is <br /> made These services were performed consistent with our agreement with our client This report <br /> is solely for the use and information of our client unless otherwise noted Any reliance on this <br /> report by a third party is at such party's sole risk <br /> 1f you have any questions, please call me at (530) 676-6000 <br /> Sincerely <br /> ST 5 VIR tAL, NC. <br /> J R has G <br /> role t M ger <br /> Attachments Table 1 Groundwater Monitonng Data <br /> Table 2 Groundwater Analytical Results for Oxygenates <br /> Figure 1 Site Location Map <br /> Figure 2 Site Map <br /> Appendix A Field Data Sheets <br /> Appendix B Sampling Procedures <br /> Appendix C Certified Analytical Reports and Chain-of-Custody <br /> Records for Groundwatei Samples <br /> Ron Rowe, San-Joaquin-County--Public Health-Services <br />• <br /> C Trojeet HeA B Clstocktonaeports12Q04 doc 5TRATu3 <br />