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16 September 1998 - <br /> AGE-NC Project No:-95=01.97 <br /> Page 3 of 7 <br /> • Fuel oxygenates including MTBE,tertiary-butyl alcohol(TBA), di-isopropyl ether(DIPE), <br /> ethyl tertiary=butyl ether(ETBE) and tertiary-amyl methyl ether(TAME) by EPA Method <br /> 8260; and . <br /> Selected soil samples'may also be analyzed for intrinsic permeability,moisture content,porosity and <br /> total organic carbon(TOC) in accordance with the appropriate EPA or ASTM methods. <br /> Laboratory reports for soil analyses, testing methods, laboratory quality assurance/Quality control <br /> (QA/QC) reports, and sample chain of custody documentation will be presented in.a report.with <br /> findings and recommendations. <br /> 2.3. MONITORING WELL COMPLETION <br /> Each proposed soil boring will be tM1 8o_r eti4las ground water monitoring and soil vapor <br /> extraction wells. The dual-completed wells-will be designed to monitor dissolved petroleum <br /> hydrocarbon concentrations in ground water and characterize ground water flow direction and <br /> gradient at the site. The wells will also accommodate an in-situ air sparging/vapor extraction pi l��t <br /> test. The results of the pilot test will be used to evaluate the feasibility of at least two re Medial <br /> alternatives. Procedures for well completion are detailed in Section 3.2. <br /> 2.4. MONITORING WELL DEVELOPMENT AND SURVEY <br /> Following well installation, the well will be developed to.maximize water flow into the well and <br /> minimize the amount of fine-grained sediment drawn.into:the well during pumping or bailing. <br /> Procedures for well and survey are presented in Section 3.3. <br /> All wells at the site will also be surveyed by a licensed professional relative to a City of Stockton <br /> benchmark to determine the elevation of.each casing. <br /> 2.5.' GROUND WATER SAMPLE'COLLECTION AND ANALYSIS _ <br /> Following the installation of the monitoring wells;one ground water monitoring and sampling event <br /> will be conducted at the site..Ground water samples will be collected from the four site monitoring <br /> wells(MW-1 through MW-4)and submitted for laboratory analysis. Groundwater_ samples will be <br /> analyzed by a DTSC-certified laboratory for the following constituents: <br /> • TPH-g in accordance with EPA Method 8015 Modified/5030; <br /> Advanced GeoEnvironmeital,Inc. <br />