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F' <br />BLAINE <br />TECH SERVICES— <br />� O <br />January 7, 2002 <br />1680 ROGERS AVENUE <br />SAN JOSE, CA 951124105 <br />(408) 573-7771 FAX <br />(408) 573-0555 PHONE <br />CONTRACTOR'S LICENSE #746684 <br />www.biainetech.com <br />Karen Petryna <br />Equiva Services LLC <br />P.4. Box 7869 <br />Burbank, CA 91510-7869 <br />JAN 0 9 2002 <br />Fourth Quarter 2001 Groundwater Monitoring at <br />Former Texaco Service Station <br />440 West Charter Way <br />Stockton, CA <br />Monitoring performed on December 6, 2001 <br />Groundwater Monitoring Report 01.1206 -BM -1 <br />This report covers the routine monitoring of groundwater wells at this former Texaco 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 <br />any separate immiscible layer, water column volume, calculated purge volume (if applicable), <br />elapsed evacuation time (if applicable), total volume of water removed (if applicable), and <br />standard water parameter instrument readings. Sample material is collected, contained, stored, <br />and transported to the laboratory in conformance with EPA standards. Purgewater (if applicable) <br />is, likewise, collected and transported to the Martinez Refining Company. <br />Basic field information is presented alongside analytical values excerpted from the laboratory <br />report in the cumulative table of WELL CONCENTRATIONS. The full analytical report for <br />the most 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 <br />hour Hazardous Materials and Emergency Response training course per 29 CFR 1910.120. Field <br />CJ personnel are also enrolled in annual eight hour refresher courses. <br />