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Geological Tecl"ics Inc. <br /> s 1101 7"Street <br /> Modesto,California 95354 <br /> 209-522-4119/522-4227 <br /> June 28, 2002 <br /> Project No.: 770.2 .r:. <br /> Project Name: 1Vlarci Property � <br /> Ms. Linda Sanborn �" ��,�•. <br /> State Water Resources Control Board �- <br /> 2014 T Street, Suite 130 , <br /> P.O. Box 944212 <br /> Sacramento, CA 94244-2120 !� <br /> RE: Cost Pre-Approval for Soil and Purge Water Disposal <br /> Location: Marci Property, 2969 Loomis Road, Stockton, CA <br /> County Site Code: 2015; USTCFP Claim#007709 <br /> Dear Ms. Sanborn: <br /> Diesel contamination from an underground storage; tank release has been detected in <br /> groundwater at the site. In their September. 6, 2001 letter, the San Joaquin County Public <br /> Health Services/Environmental Health Division (SJC PHS/EHD) directed the submittal of a <br /> work plan to install additional deep-screened monitoring wells. In Geological Technics <br /> Inc.'s October 25, 2002 "Additional Site Characterization- Soil Boring and Monitoring Well <br /> Installation" work plan we.proposed the installation of additional monitoring wells at the <br /> site. The work plan and subsequent addenda were approved by the SJC PHS/EHD on <br /> December 6, 2001. On May 8 & 9, 2002, four additional monitoring wells were installed at <br /> the site. This work generated approximately 34 drums of drill cuttings and 12 drums of <br /> purge/decon water. The work proposed herein is the coordination, supervision and disposal <br /> of these drums of soil and water. <br /> Copies of the work plan and addendum's to the Work,Plan, SJC PHS/EHD correspondence, <br /> disposal bids and an itemized budget spreadsheet of costs for performing this work is <br /> enclosed for your review. <br /> Proposed Bidding of Project <br /> To remain in compliance with the USTCFP, Geological Technics Inc. requested bids from <br /> Del-Tech and American Valley Waste Oil to.dispose of the soil and water, respectively. The <br /> Del Tech bid is attached and American Valley Waste Oil responded via telephone with a <br /> price of$1.25/gallon. <br /> These costs have been included in the attached opinion of cost spreadsheet prepared giving <br /> estimated costs for performing the work approved by SJC PHS/EHD. The opinion of cost <br /> spreadsheet shows itemized cost for the tasks proposed. In an attempt to make this Pre- <br /> Approval flow smoothly, GTI has used the.same unit costs for this work that has previously <br /> been approved by the USTCFP for other projects. <br /> I <br />