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BLAINE 1680 ROGERS AVENUE <br /> TEcH SmmcEs— SAN JOSE, CA 95112-1105 <br /> (408)573-7771 FAX <br /> 'g (408)573-0555 PHONE <br /> y <br /> CONTRACTOR'S UCENSE#746684 <br /> www.blainetech com <br /> ++vb <br /> July 31,2003 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P.O. Box 7869 <br /> Burbank, CA 91510-7869 <br /> Third Quarter 2003 Groundwater Monitoring at <br /> Former Shell Service Station <br /> 1313 East Charter Way <br /> . Stockton, CA <br /> Monitoring performed on July 11,2003 <br /> Groundwater Monitoring Report 030711-SH-1 <br /> This report covers the routine monitoring of groundwater wells at this former Shell facility In <br /> accordance with standard procedures that conform to Regional Water Quality Control Board <br /> requirements,routme 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 Refiring 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 mirvmum,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 /> personnel are also enrolled in annual eight-hour refresher courses <br />