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. Ms Margaret Lagono Apnl 6, 2001 <br /> Page 3 Project No 2002-1426-01 <br /> Groundwater samples were analyzed for TPHG using United States Environmental <br /> Protection Agency (USEPA) Method 8015B DHS LUFT Manual and for benzene, <br /> toluene, ethylbenzene and total xylenes (BTEX), methyl tertiary butyl ether (MTBE), <br /> tertiary amyl methyl ether (TAME), tertiary butyl alcohol (TBA), di-isopropyl ether <br /> (DIPE), ethyl tertiary butyl ether (ETBE) and 1,2-dichloroethane (1,2-DCA) using <br /> USEPA Method 8260B Certified Laboratory Reports and chain-of-custody <br /> documentation are presented in Appendix C <br /> Concentrations of TPHG and TBA were detected in the sample collected from <br /> monitoring well MW-2 at 0 051 milligrams per liter (mg/L) and 13 gg/L, respectively <br /> No petroleum hydrocarbons or fuel additives were detected in the sample collected from <br /> monitoring well MW-1, consistent with the previous sampling event <br /> CONCLUSIONS <br /> Concentrations of petroleum hydrocarbons and fuel additives are generally consistent <br /> with previous sampling events Petroleum hydrocarbon concentrations have declined <br /> since the initial sampling event performed in March 1997 The next sampling event is <br /> . scheduled for June 2001 <br /> If you have any questions, please contact Jay Johnson at (530) 676-6000 <br /> Sincerely, <br /> STRATUS ENVIRONMENTAL, INC <br /> dA <br /> L <br /> S ott ittinger R <br /> Staff eologist Proje <br /> Attachments Table 1 Groundwater Monitoring Data <br /> Table 2 Additional Groundwater Analytical Results <br /> Figure 1 Site Location Map <br /> Figure 2 Site Map <br /> Appendix A Field Data Sheets <br /> Appendix B Sampling and Analysis Procedures <br /> Appendix C Certified Analytical Reports and Chain-of-Custody <br /> Documentation <br /> cc Mr Travis Bryant, Interstate Brands Corporation <br /> C Troject Files\l B C1Stockton\Qrtlylibc-Stockton-]QO1 doe 5rRATu5 <br />