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U-Haul (work plan approval letter) page 2 <br /> 2701 N. Wilson Way, Stockton. <br /> COMMENTS AND CONDITIONS (continued) <br /> • Additional groundwater monitoring wells (`nested' or `clustered') are <br /> needed on line from existing MW-4 south to MW-7, on northwest side of <br /> Wilson Way (closest to site). Both the "B" and "C" intervals, and <br /> possibly an "A" interval well are needed to define the petroleum <br /> contamination in this area and, <br /> • Analyze selected samples for methanol (EPA 8015m), ethanol, and 1,2- <br /> DCA (EPA 8260B). Soil analyses for EDB and Lead, as well as some of <br /> the Oxygenates, may be needed to support delineation conclusions in <br /> pending CAP. Quarterly groundwater monitoring should include these <br /> analytes to support plume (groundwater) delineation conclusions. <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN [H&S 25299.37, <br /> subd(c)(3)]: <br /> • Not `disapproved', but proposal needs addendum prior to full approval. <br /> DATED: December 4, 2001. <br /> Michael Infurn , Senig E H S (209) 468-3454 <br /> Faxed to consultant [X] /2-7-61 <br />