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BLAINE <br /> TECH SERVICES <br /> GROUNDWATER SAMPLING SPECIALISTS <br /> SENCE 1985 <br /> November 4, 2004 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P O Box 7869 <br /> Burbank, CA 91510-7869 <br /> Fourth Quarter 2004 Groundwater Monitoring at <br /> Former Shell Service Station <br /> 2575 Country Club <br /> Stockton, CA <br /> Monitoring performed on October 8, 2004 <br /> Groundwater Monitoring Report 041008-RM-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, 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 /> personnel are also enrolled in annual eight-hour refresher courses <br /> &M Jose awcwu "To LOS ANQ*= SM art00 <br /> 16EA SERE AVEHLtE sNt ,CA �a�iq-f 70a Iii 47a4)5U FAX Duel 673-*771 LIG 14"64 www biain•twcn com <br />