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1 <br /> 13 December 1999 <br /> AGE-NC Project No 95-0137 <br /> ' Page 2 of 5 <br /> from wells VW-IA and VW-2A <br /> Temperature,pH, and conductivity were measured at regular Intervals using a Hydac water analyzer <br /> or an ICM water analyzer Model No 5200 Purged water was stored on-site in 55-gallon drums The <br /> field data sheets are Included In Appendix A <br /> 22 GROUND WATER SAMPLE COLLECTION <br /> ' After purging and allowing a minimum of 80%recharge recovery of the water level, samples were <br /> collected from each well using new, clean, disposable plastic bailers The samples were transferred <br /> Into 40-m1 EPA-approved volatile organic analysis (VOA) vials and Into 1-liter amber bottles <br /> 1 Samples were stored in a chilled container and transported under chain-of-custody to McCampbell <br /> Analytical Laboratories (MAI) In Pacheco, California, a State of California Department of Health <br /> Services (DHS)-certified laboratory <br /> ' Each sample was analyzed In accordance with the following <br /> • EPA Method 8015 Modified for total petroleum hydrocarbons quantified as gasoline (TPH- <br /> g), <br /> t • EPA Method 8015 Modified for total petroleum hydrocarbons quantified as diesel (TPH-d), <br /> • EPA Method 8020 for benzene, toluene, ethylbenzene, and total xylenes (BTEX) and <br /> ' • EPA Method 8260 Modified for methyl-tert butyl ether (MTBE), tertiary butyl alcohol <br /> (TBA), dl-Isopropyl ether(DIPS), ethyl tertiary butyl ether(ETBE) and tertiary amyl methyl <br /> ether(TAME) <br /> 23 DOMESTIC WELL SAMPLE COLLECTION <br /> A water sample was collected from the domestic drinking water well located on the Jlmco site The <br /> well pump was operated for one minute A sample was collected from the dedicated sample tap on <br /> ' the well head, the sample was collected In three 40-m1 EPA-approved volatile organic analysis <br /> (VOA) vials and one 1-liter amber bottle <br /> ' The sample was stored in a chilled container and transported under chain-of-custody to McCampbell <br /> Analytical Laboratories (MAI) in Pacheco, California, a State of California Department of Health <br /> Services(DHS)-certified laboratory The sample was analyzed for constituents listed In Section 2 2 <br /> 1 <br /> Advanced GeoEnvvonmental,Inc <br />