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• pp pp • ! <br /> CLEARWA' TER <br /> • G R O L3 P, I N C. <br /> Borings CPT-4 and CPT-5: <br /> The purpose of advancing these borings is to sample groundwater; therefore, <br /> no soil samples will be analyzed from these locations. Groundwater samples <br /> will be analyzed for TPH as gasoline and BTEX. <br /> Boring CPT-6: <br /> Soil samples will be collected between 40 feet and 55 feet bgs. The samples <br /> will be screened using an FID, and up to four soil samples will be submitted to <br /> the laboratory for analysis of TPH as gasoline, TPH as diesel fuel, and BTEX on <br /> a normal turnaround-time basis. A groundwater sample will be collected and <br /> analyzed for TPH as gasoline and BTEX. <br /> 2.4 SVE Pilot Testing <br /> No SVE pilot testing will be conducted in this phase of work. <br /> 2.5 Groundwater Extraction Tests <br /> No groundwater extraction tests will be conducted in this phase of work. <br /> Modifications to Section 3.0 of the Workplan (PROJECT REPORT) <br /> In accordance with the PHS Workplan Review and telephone conversations <br /> with the PHS, the report will include geologic and general site data obtained <br /> to assess the feasibility of using SVE at the site. The report will include the <br /> following information: <br /> • Data obtained during this phase of site assessment <br /> • Cross-sections showing depth to groundwater <br /> Estimates of the volume of soil to be treated and pore volume calculations <br /> • Permeability to air (estimated from the laboratory measurements of <br /> permeability to water) <br /> Calculated pneumatic conductivity (using air permeability estimates) <br /> Soil moisture content on the basis of laboratory analysis <br /> • Constituent volatility (published values) <br /> • The rationale for the SVE pilot test design. <br /> 5 <br /> D105WPAdd 10/95 <br />