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' BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> z 'per CONTRACTOR'S LICENSE#746684 <br /> 1 www.blainctech.com <br /> o <br /> 'G'gND �v�W <br /> August 13, 2003 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P.O.Box 7869 <br /> Burbank, CA 91510-7869 <br /> Third Quarter 2003 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 341 East Main Street <br /> Ripon, CA <br /> • Monitoring performed on May 9,June 30, <br /> and July 24, 2003 <br /> Groundwater Monitoring Report 030724-MS-2 <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,appropriate calculated purge volume (if <br /> applicable), elapsed evacuation time(if applicable),total volume of water removed (if <br /> applicable), and standard water parameter instrument readings. Sample material is collected, <br /> contained, stored, and transported to the laboratory in conformance with EPA standards. Purge <br /> water(if applicable) is, likewise, collected and transported to the Shell Martinez Manufacturing <br /> Complex. <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 />