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Adward-Clyde Consultants <br /> Mr. Michael Trujillo <br /> Page 3 { <br /> June 8, 1988 <br /> The time required to complete the proposed work is approximately four to <br /> five weeks following receipt of a signed contract or purchase order. We <br /> anticipate that the field activities can begin within one week of <br /> contracting but depends , in part, on driller availability and <br /> permitting. The activities will take three to four days to complete , <br /> while standard laboratory turnaround time is two weeks . The report will <br /> be prepared and submitted to Thrifty Oil Co. within one week of <br /> receiving the written laboratory results . <br /> The estimated costs for completing the proposed assessment are detailed <br /> in Table 1 . These costs assume that no unusual subsurface conditions <br /> will be encountered during drilling and that the well locations in the <br /> RFP have been cleared for the presence of subsurface piping and <br /> utilities. They also assume that Thrifty Oil Co. will be responsible <br /> for the costs associated with the disposal of contaminated soil or water <br /> should any be generated during this investigation. Other assumptions <br /> include that an average of two soil and one water sample will be <br /> analyzed from each boring/well with one soil sample undergoing the <br /> complete analyses (TPH, BTEX, EDB and Lead) and the other for TPH only, <br /> each water sample will be analyzed for TPH, BTEX and lead, all wells <br /> will be completed to a depth of 50 feet, all well locations are within <br /> areas paved with asphalt and no concrete slabs. <br /> We look forward to working with you on this project , and if you have any <br /> questions or require additional detail , please contact Mr. Martin <br /> Cramer, who will be the engineer managing the assessment. <br /> Sincerely, <br /> 1 <br /> rin <br /> Sartoanag Principal <br /> E ronmental and Engineering Services <br /> SDS/sst <br /> PRP/8829113-L1 <br /> Enclosure <br />