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en vtroso <br /> Quarterly Sampling <br /> Monitoring Wells MW-1 through MW-4 were sampled and analyzed for Total Purgeable <br /> Petroleum Hydrocarbons quantified as Gasoline (TPPH) according to EPA Method 8015 <br /> (Modified), Benzene, Toluene, Ethylbenzene and Xylenes (BTEX) according to EPA <br /> Method 8020, and Methyl-tertiary-butyl ether 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, BTEX, and <br /> MTBE are summarized in Table I The Blaine Quarterly Ground Water Monitoring Report <br /> is presented in Appendix A <br /> If you have any questions regarding the contents of this document, please call <br /> Sincerely, <br /> Enviros, Inc <br /> *Clyde J Galantine <br /> Projec Geologist oQRpFESSlpy�� <br /> Diane M Lundquist, E NO C46725 x} <br /> Senior Engineer <br /> C46725 JPIrqT£Off <br /> Attachments <br /> Table I 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 Margaret Lagorio, San Joaquin County Environmental Health Division <br /> Ms Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br />• <br /> 96373 2 <br />