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CUARTERLY GROUND WATER MONITORING REPORT <br /> 1799 E.Yosemite Avenue.Mameca.Caldornw <br /> 2.2 Groundwater AnaNais <br /> On 1 February 1991, groundwater samples were collected from the three on site <br /> groundwater monitoring wells (MW-1A, MW-2, & MW-3). Groundwater samples were <br /> collected according to the methods described in Aegis SOP, Appendix A. The samples <br /> were submitted to Coast-to-Coast Analytical Services of San Luis Obispo for a fuel <br /> fingerprint analysis. Constituents analyzed included total purgeable petroleum <br /> hydrocarbons (fPPH) as weathered gasoline, benzene, toluene, ethyl benzene, and <br /> xylenes (BTEX), 1,2-dichloroethane (EDC) and ethylene dibromide (EDB). The samples <br /> were extracted by EPA method 5030 (purge-and-trap) and analyzed by a gas <br /> chromatograph/mass spectrometer (GC/MS), EPA Method 8240. Table 3 summarizes <br /> the groundwater analytical results performed to date. Copies of the certified analytical <br /> results and chain-of-custody records are included in Appendix B. <br /> i <br /> 37�S90A.RPT -5- <br /> _ r <br /> f <br />