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Each of the four monitoring wells (MW-6, MW-7, VW-1 and VW-2) was purged of at least three <br /> well volumes using a decontaminated� bailer. Following purging and recharge, groundwater_ <br /> 9 <br /> samples were collected from the four wells using dedicated and disposable sampling bailers. <br /> i <br /> Irrigation Well#2 was allowed to flow at the wellhead until the downhole pump was automatically <br /> activated. A groundwater sample was collected directly at the wellhead through a sample port. <br /> The groundwater samples were contained in laboratory-supplied glassware, labeled, and <br /> packed in an iced cooler for transport with chain-of-custody documentation to Kiff Analytical, LLC <br /> (Kiff) a state of California certified analytical laboratory (#2236). <br /> Kiff analyzed the groundwater samples for Total Petroleum Hydrocarbons (TPH)-as-gasoline, <br /> benzene, toluene, ethylbenzene, xylenes (BTEX), methyl-t-butyl ether (MTBE), diisopropyl ether } <br /> (DIPE), ethyl-t-butyl ether(ETBE), tert-amyl methyl ether (TAME), tert-butanol (TBA) and 1,2- <br /> dichloroethane (1,2-DCA) by EPA Method 82606. The laboratory reports and chain-of-custody <br /> documents are included as Appendix A. <br /> Analytical results of the groundwater samples indicate that dissolved concentrations of <br /> F gasoline <br /> 4 hydrocarbons continue to exist in groundwater beneath the site. Groundwater sampled from <br /> VW-2 contained 180 parts per billion (ppb) of TPH-as-gasoline, 16 ppb of ethylbenzene, 280 <br /> Lppb of MTBE, 21 ppb of TBA and 32 ppb of 1,2-DCA. Groundwater sampled from VW-1 was <br /> non-detect for TPH-as-gasoline, but contained 1.8 ppb of MTBE and 0.56 ppb of 1,2-DCA. <br /> Groundwater sampled from Irrigation Well#2 was also non-detect to TPH-as-gasoline, but <br /> contained 1.5 ppb of xylenes. Groundwater sampled from MW-6 and MW-7 did not contain <br /> Ldetectable concentrations of TPH-as-gasoline, BTEX, oxygenates (MTBE, DIPE, ETRE, TAME, <br /> r TBA), or 1,2-DCA. The historical analytical results from (1990 through 1998) are summarized in <br /> L <br /> Table 2. The most recent analytical results (1999 through 2000) are summarized in Table 3. <br /> k <br /> M <br /> F <br /> I <br /> 1 5 <br /> f <br />