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ME <br /> ' !-maxi' <br /> 8 May 1989 <br /> contamination since these wells were installed outside the <br /> area of suspected (and obvious) soil contamination. We should <br /> note here that in our discussions with Mr. Boggs of the <br /> Regional Board, analysis of additional soil samples for <br /> contamination (nearer the old Excavation) was later requested <br /> and is included in our workplan. <br /> 2. A table of groundwater surface elevations determined at <br /> the times the wells have been sounded in the past. <br /> 3. A well construction diagram showing the details of the <br /> proposed new (and in this case existing) monitoring wells. <br /> 4. A health and safety plan for the proposed work. <br /> Regarding the additional comments and recommendations. <br /> 1. When the two new proposed wells are installed, water <br /> samples from all well::; on the property will be taken and <br /> analyzed for TPH and BTEX. <br /> 2. Based on our 21 April 1989 telephone conversation with Mr. <br /> James, we will, in the continously cored borings, obtain a <br /> brass lined soil sample by Modified California Sampler, at <br /> five foot vertical intervals. These samples will be field- <br /> screen for volatiles using a photoionization detector. Once o <br /> all samples are taken and the field data ana]yzed, '-hose <br /> samples exhibiting contamination will be----within j. day of <br /> sampling--taken to the analytical laboratory for TPH and BTEX <br /> analyses. <br /> 3. All groundwater and soil sample data from the <br /> investigation will be presented in tabular form in the final <br /> problem assessment report. <br /> 4. The boring logs from all borings and well installations <br /> will be included in the final report. In addition, we plan <br /> to construct geologic cross sections from the boring log data. <br /> We will endeavor to complete the work requested by 15 June 1989, <br /> as outlined in Mr. James letter. Timing for permits, scheduling <br /> of equipment, and laboratory turnaround times will govern the <br /> actual completion date. <br /> 0 <br />