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l <br /> en viros® <br /> First Quarter Sampling <br /> Monitoring Wells MW-1 through MW-4 were sampled and analyzed for Total Purgeable <br /> Petroleum Hydrocarbons (TPPH) according to EPA Method 8015 (Modified) and <br /> Benzene, Toluene, Ethylbenzene and Xylenes (BTEX) according to EPA Method 8020 <br /> Additionally, a duplicate sample and an equipment blank were prepared and analyzed for <br /> quality control purposes <br /> Field monitoring data and this quarter's chemical analytical data for TPPH and BTEX are <br /> summarized in Table 1 Blaine's quarterly ground water monitoring report is presented in <br /> Appendix A <br /> If you have any questions regarding the contents of this document, please call <br /> Sincerely, <br /> Enviros, Inc <br /> Greg L Vaughan <br /> Staff Engineer <br /> LU,�OQROF�SSIpygl <br /> e. <br /> 14W <br /> �� � rM <br /> ' <br /> Diane M Lundquist, P E 4 q <br /> Senior Engineer Na 046725 <br /> C46725 <br /> �fiJ <br /> Attachments <br /> �lqT£ CA�FO�a�� <br /> Table 1 Well Concentrations <br /> Plate 1 Vicinity Map <br /> Plate 2 Ground Water Contour/Benzene Concentration Map <br /> Appendix A <br /> Blaine Quarterly Ground Water Monitoring Report <br /> cc Ms Diane Hinson, San Joaquin County Environmental Health Division <br /> Ms Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br /> 2 <br />