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i t <br /> a Separate phase product was not present in Well RW-IA this quarter <br /> 0 Ground water samples collected from deep wells MW-12 through MW-14 did not contain <br /> detectable levels of TPPH, benzene, and oxygenate compounds <br /> ® Ground water samples collected from the Caltrans irrigation well and the 5 domestic wells did not <br /> contain detectable levels of TPPH, benzene, and oxygenate compounds, with the exception of <br /> 120 ppb of TPPH in the 2468 Country Club Boulevard well, and 3 7 ppb of MTBE in the 2472 <br /> Country Club Boulevard well However, the EPA Method 8260 analysis for MTBE performed on <br /> the 2472 Country Club Boulevard well found MTBE to be ND at a detection limit of <2 0 ppb <br /> Additionally, the equipment blank collected during this sampling event contained 11 ppb MTBE <br /> (EPA Method 8020) These data are summarized on Table 2 <br /> Quarterly Sampling <br /> Ground water samples were analyzed for Total Purgeable Petroleum Hydrocarbons quantitated as <br /> gasoline (TPPH) according to EPA Method 8015 (Modified), and benzene, toluene, ethylbenzene, <br /> and xylenes (BTEX), and methyl-tertiary-butyl-ether (MTBE) according to EPA Method 8020, and <br /> oxygenate compounds according to EPA Method 8260 and EPA 8015 (Modified) Additionally, a <br /> duplicate sample and an equipment blank were prepared and analyzed for quality control purposes <br /> Field monitoring data and chemical analytical data are summarized in Tables I and 2 Blaine's ground <br /> water monitoring report is presented in Appendix A <br /> Ground water monitoring, sampling, and reporting will continue on the established schedule for the <br /> next quarter <br /> If you have any questions regarding the contents of this document, please call <br /> Sincerely, <br /> Cambria Environmental Technology, Inc <br /> Joe"WNeely <br /> Project cologist �QQRpFESS!{1,yq� <br /> L U,y e. <br /> Diane M Lundquist E in -' <br /> Senior Engineer NO C46725 <br /> C46725 sl CIV1t <br /> OF C \E4� <br /> 240-0783 2 <br />