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t <br /> BLAINE 1680 ROGERS AVENUE <br /> TECH 5EPMCEs. SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> b 'moo a (408)573-0555 PHONE <br /> CONTRACTOR'S LICENSE#746684 <br /> www blainetech com <br /> February 25, 2002 <br /> Karen Petryna <br /> Equiva Services LLC <br /> P.O. Box 7869 <br /> Burbank, CA 91510-7869 <br /> First Quarter 2002 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 4315 Waterloo Road <br /> Stockton, CA <br /> Monitoringperformed P on January 23 and February 5, 2002 <br /> Groundwater Monitoring Report 020123-EF-2 <br /> -2 <br /> This report covers the routine monitoring of groundwater wells at this Shell-branded facility. In <br /> accordance with standard procedures that conform to Regional Water Quality Control Board <br /> requirements, routine field data collection includes depth to water, total well depth, thickness of any <br /> separate immiscible layer, water column volume, calculated purge volume(if applicable), elapsed <br /> evacuation time (if applicable), total volume of water removed (if applicable), and standard water <br /> parameter instrument readings Sample material is collected, contained, stored, and transported to <br /> the laboratory in conformance with EPA standards. Purgewater(if applicable) is, likewise, <br /> collected and transported to the Martinez Refining Company. <br /> Basic field information is presented alongside analytical values excerpted from the laboratory report <br /> in the cumulative table of WELL CONCENTRATIONS. The full analytical report for the most <br /> recent samples and the field data sheets are attached to this report. <br /> At a minimum, Blaine Tech Services, Inc. field personnel are certified on completion of a forty hour <br /> Hazardous Materials and Emergency Response training course per 29 CFR 1910120. Field <br /> persoiutel are also enrolIediri aitauaTeigghtYoer re�resfier courses. <br />