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f <br /> BLAINE 1680 ROGERS AVENUE <br /> , <br /> SAN JOSE,CA 95112-1105 <br /> TECH SERVICES <br /> { (408)573-7771 FAX <br /> � µr Ty�Ro (408)573-0555 PHONE <br /> � O <br /> n F <br /> Cl � <br /> { 'G` <br /> It, <br /> February 23, 1999 = 1 j <br /> 3 Karen Petryna �,_' �•-_ <br /> Equiva Services LLC - f <br /> P.O. Box 6249 <br /> Carson, CA 90749-6249 <br /> Fust Quarter 1999 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 2575 Country Club <br /> Stockton, CA <br /> Monitoring performed on January 27, 1999 <br /> Groundwater Monitoring Report 990127-J-1 <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 <br /> any separate immiscible layer, water column volume, apprioriate calculated purge volume (if <br /> F applicable), elapsed evacuation time (if applicable), total volume of water removed(if <br /> applicable), and standard water parameter instrument readings. Sample material is collected, <br /> contained, stored, and transported to the laboratory in conformance with EPA standards. <br /> Purgewater (if applicable) is, likewise, collected and transported to the Martinez Refining <br /> 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. 5 <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 F <br /> personnel are also enrolled in annual eight hour refresher courses. <br /> 1 <br />