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Mr. John Ewing -2- 24 September 1993 <br /> Leprino Foods <br /> In addition to the comments above, the following comments on the field protocol described in <br /> Attachment A need to be addressed. <br /> 6. Section A-2.6 states that drill cuttings will be placed in drums and transported to the tank <br /> excavation soil stockpile for storage. A 26 August 1992 letter from Kleinfelder stated that, <br /> pending acceptance, the tank excavation soil would be bioremediated at the Forward Landfill in <br /> Stockton. If Forward Landfill accepted the soils for bioremediation, the soils should have been <br /> removed by now. If the soils were not accepted, alternative disposal options should have been <br /> considered. Please inform me what has been or will be done with these soils. <br /> 7. Section A-3.1 states that a fourth monitoring well with a four-inch casing will be installed. <br /> There is no mention of a fourth monitoring well in the text of the proposal. If a fourth <br /> monitoring well is to be installed, its location should be shown on a map. In addition, the <br /> reason for using a four-inch diameter casing, as opposed.to the two-inch casings proposed for <br /> the other monitoring wells, should be stated. <br /> 8. Section A-3.2 states that prior to well development, each well is first sampled with a bailer to <br /> visually inspect for a hydrocarbon layer or sheen. If there is a measurable thickness of free <br /> product, then the thickness should be measured and reported. <br /> Please provide a written response to these comments by 15 October 1993, before beginning any <br /> field activities. Include in your response a schedule for beginning field work and submitting the <br /> Report of Findings and a work plan for the interim ground water extraction and treatment system, <br /> which was due on 10 September 1993 with the submitted Ground Water Assessment Proposal. In <br /> addition to those items proposed to be included in the Report of Findings, that report also should <br /> include an evaluation of the extent of soil and ground water contamination, a proposal for any <br /> further site characterization needed, and an evaluation of the interim remediation system capture <br /> zone. <br /> If you have any questions, please call me at (916) 255-3048. _ <br /> plc <br /> POLLY LOWRY <br /> Associate Engineering Geologist <br /> PAL:gs <br /> cc: San Joaquin Public Health Services, Stockton <br /> Mr. Roy Greengrass, Leprino Foods, Tracy <br /> Mr, Eric Findlay, Kleinfelder, Sacramento <br /> M <br />