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. Chevron Products Company 3 <br /> Chevron Service Station #9-8632, Tracy Boulevard, Tracy, CA t October 2, 2001 <br /> • Well Surveying and Groundwater Gradient Interpretation. A state-licensed <br /> surveyor will survey the newly installed wells. Depth to groundwater <br /> measurements will be collected during sampling activities and utilized for <br /> interpretation of groundwater flow and gradient beneath the site. <br /> i <br /> • Report. A report will be prepared after completion of necessary field work. <br /> The report will include soil boring logs, soil and groundwater analytical results, <br /> chain-of-custody documentation, groundwater gradient map, and conclusions . <br /> Field and laboratory procedures are presented as Attachment B . <br /> SCHEDULE <br /> SECOR is prepared to initiate fieldwork within 4 weeks following approval of this work <br /> plan by the San Joaquin County Environmental Health Department and issuance of <br /> permits by the City of Tracy and San Joaquin County. A report documenting the <br /> findings of the well installations is anticipated to be submitted approximately 8 to 10 <br /> weeks after the completion of the field work and upon receipt of all analytical data. <br /> If there are any questions regarding the contents of this work plan, please call Bill <br /> Brasher of SECOR at (916) 861-0400 extension 284 or Bob Cochran of Chevron at <br /> (925) 842-9655 . <br /> Sincerely, <br /> SECOR International Incorporated <br /> Brian Silva William E. Brasher, P.E. <br /> Staff Scientist Project Manager <br /> Attachments : Figure 1 - Site Location Map <br /> Figure 2 - Site Map with Proposed Monitoring Well Locations <br /> Attachment A - Summary of Previous Investigations <br /> Attachment B - Field and Laboratory Procedures <br /> cc : Bob Cochran, Chevron Products Company, San Ramon, CA <br /> Marty Hartzell, RWQCB — Central Valley Region, Sacramento, CA <br /> Stella Rickman , Tracy, CA <br /> Rudy Sanchez, Tracy Express Wash and Lube, Tracy, CA <br /> Kathryn Pudenz, San Francisco, CA <br /> 1AChevron\98632\Rcports\98632 well install WP 2001.doc <br />