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• Quarterly Sampling <br /> Monitoring Wells MW-1 through MW-4 and VEW-1 were sampled and analyzed for Total Purgeable <br /> Petroleum Hydrocarbons quantitated as gasoline (TPPH) according to EPA Method 8015 (Modified), <br /> benzene, toluene, ethylbenzene, and xylenes (BTEX), and methyl-tertiary-butyl-ether (MTBE) <br /> according to EPA Method 8020 Additionally, a duplicate sample and an equipment blank were <br /> prepared and analyzed for quality control purposes <br /> Field monitoring data and chemical analytical data are summarized in Table 1 Blaine's quarterly <br /> ground water monitoring report is presented in Appendix A <br /> If you have any questions regarding the contents of this document, please call <br /> Sincerely, <br /> Cambria Enviro ental Technology, Inc <br /> Jeff Gaarder <br /> Project Geologist QS�FEsslpy4� <br /> Diane M Lundquist, P E <br /> Senior Engineer NO C46725 <br /> C46725 4rEIIIOF G <br /> Attachments <br /> Table 1 Well Concentrations <br /> Plate 1 Vicinity Map <br /> Plate 2 Ground Water Contour/Chemical Concentration Map <br /> Appendix A <br /> Blaine Tech Service Inc - Quarterly Ground Water Monitoring Report <br /> cc Mr Harlin Knoll San Joaquin un <br /> q County Environmental Health Division <br /> Ms Pat Anderson, Central Valley Regional Water Quality Control Board <br /> • <br /> 373 2 <br />