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BM- NE 9680 ROGERS AVENUE <br /> TECH SUMCES_ SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> z 9� CONTRACTOR'S LICENSE#746684 <br /> www bimnetech com <br /> 4 ppL�3a� <br /> May 1, 2002 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P.O Box 7869 <br /> Burbank, CA 91510-7869 <br /> Second Quarter 2002 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 4315 Waterloo Road <br /> Stockton, CA <br /> Monitoringperformed on April 18 2002 <br /> p P <br /> Groundwater Monitoring Report 020418-DW-1 <br /> Tlus 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 /> iAt a muumum, 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 1910 120 Field <br /> personnel are also enrolled in annual eight-hour refresher courses <br />