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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> rr_•� waprcNT Ty�O <br /> (408)573-0555 PHONE <br /> v z <br /> 0 <br /> ff P <br /> �9Nn poc��w <br /> May 5, 1999 <br /> Scott Hooton <br /> BP Oil Company <br /> 295 SW 41st Street, Bldg. 13, Suite N <br /> Renton, WA 98055-4931 <br /> 1st Quarter 1999 Monitoring at 11195 <br /> First Quarter 1999 Groundwater Monitoring <br /> BP Service Station Number 1 l 195 <br /> 16500 1-5 <br /> Lathrop, CA <br /> -_ Monitoring Performed on March 22, 1999 <br /> Groundwater Sampling Report 990322-R-2 <br /> This report covers the routine monitoring of groundwater wells at this BP facility. Blaine Tech <br /> Services, Inc.'s work at the site includes inspection, gauging, evacuation, purgewater <br /> containment, sample collection and sample liandling in accordance with standard procedures that <br /> conform to Regional Water Quality Control Board requirements. <br /> Routine field data collection includes depth to water, total well depth, thickness of any separate <br /> immiscible layer, water column volume, the appropriate calculated purge volume, elapsed <br /> evacuation time, total volume of water removed, and standard water parameter instrument <br /> readings. Sample material is collected, contained, stored, and transported to the laboratory in <br /> conformance with EPA standards. Purgewater is, likewise, collected and transported to Scapori <br /> Petroleum Corporation for disposal. <br /> Basic field information is presented alongside analytical values excerpted from the laboratory <br /> report if) the cumulative table of WELL DATA AND ANALYTICAL, RESULTS. The I-Lill <br /> analytical report for (lie most recent samples is located in the Analytical Appendix. The <br /> Professional Engineering Appendix contains a Groundwater Elevation Map and a Dissolved <br /> .Petroleum Hvdrocarbon Concentration Map. <br /> Blaine Tech Services, Inc, Report No 990322-R-2 1 sl -d 1999 Monitoring at BP 1 1195 <br /> i <br /> i <br /> I <br />