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i 'BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES_ SAN,LOSE, CA 95112-1105 <br /> (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> CONTRACTOR'S LICENSE#746684 <br /> www.biainetech.com <br /> . F <br /> August 9, 2002 <br /> 1, Karen Petryna <br /> Shell Oil Products US <br /> P.O. Box 7569 <br /> Burbank, CA 91510-7869 <br /> i - <br /> Third Quarter 2002 Groundwater Monitoring at <br /> Shell-branded Service Station l <br /> 3725 South Tracy Boulevard <br /> Tracy, CA <br /> Monitoring performed on July 15, 2002 <br /> i <br /> Groundwater Monitoring Report 020715-JK-1 <br /> k <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. 4 <br /> 4 <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. F <br /> i Jr <br /> 7 <br /> J <br /> .r 1 <br />