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BLAINE 1680 ROGERS AVENUE <br /> TECH SEWrZS— SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> • T (408)573-0555 PHONE <br /> y CONTRACTOR'S LICENSE#746684 <br /> = www blainetech com <br /> r <br /> March 25, 2003 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P O Box 7869 <br /> Burbank, CA 91510-7869 <br /> First Quarter 2003 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 620 West Charter Way <br /> Stockton, CA <br /> Monitoring performed on February 11,2003 <br /> Groundwater Monitoring Report 030211-DW-1 <br /> This report covers the routine monitoring of groundwater wells at this Shellbranded 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 apphcable), <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 excerptdd 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 />