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CLEARWATER <br /> G R O U P [ N C <br /> Environmental Services <br /> • Total depth of the soil borings will be 10 feet below the depth to <br /> groundwater (encountered during drilling) <br /> • Soil samples will be collected at five-foot intervals for lithologic <br /> descriptions <br /> • In SB-1, samples collected between five feet below ground surface (bgs) and <br /> the water table will be submitted for chemical analyses, one saturated soil <br /> sample will be chemically analyzed to evaluate the vertical extent of <br /> contamination, as requested by the EHD <br /> • In SB-2 and SB-3, samples collected between ten feet bgs and the water <br /> table will be submitted for chemical analyses, in addition, one saturated <br /> soil sample will be chemically analyzed fiom each boring <br /> • Soil samples will be analyzed for the compounds listed in the -Workplan <br /> for Site Investigation <br /> Because little is known regarding the location of underground utilities <br /> S (primarily natural gas and water supply lines), Clearwater proposes to employ <br /> a utility locator prior to drilling The proposed locations shown on Figure 3 <br /> may be modified slightly if they are too close to underground utilities f <br /> Enclosed is an application for well and soil boring permits and a check for $89, <br /> as you requested in your letter dated May 16, 1997 Please feel free to call me at <br /> 510-893-5160 extension 15 if you have questions regarding this addendum to <br /> the workplan <br /> Sincerely, <br /> CLEARWATER GROUP, INC <br /> U <br /> J nn17.udson,�RG <br /> Senior Geologist <br /> cc Mr Floyd Barnes, Barnes Trucking <br /> Attachments <br /> Figures 1 through 3 <br /> • Well Permit Application <br /> Clearwater check in the amount of $89 00 <br /> Subcontractor Authorization <br />