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BLAINE 1680 ROGERS AVENUE <br /> TECH SUmcES.� SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> 'w (408) 573-0555 PHONE <br /> '� CONTRACTOR'S LICENSE x#746684 <br /> www blainatech.com <br /> j T <br /> +nra <br /> June 16,2004 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P.O Box 7569 <br /> Burbank, CA 91510.7869 <br /> Second Quarter 2004 Groundwater Momtonng at <br /> Shell-branded Service Station <br /> 2575 Country Club <br /> Stockton, CA <br /> Monitoring performed on February 5,March 3, and <br /> April 27, 2004 <br /> Groundwater Monitoring Report 040427-RM-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, 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 mmmmum, Blaine Tech Services, Inc field personnel are certified on completion of a forty- <br /> hour Hazardous Materials and Emergency Response traimmg course per 29 CFR 1910 120 Field <br />