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23 June 1998 <br /> AGE-NC Project No. 98-0445 <br /> Page 3 of 5 <br /> 3.3. LABORATORY ANALYSIS <br /> Eight selected soil from the soil borings and one ground water sample to be collected from the <br /> monitoring well, will be analyzed in accordance with EPA Method 8015m for total petroleum <br /> hydrocarbons quantified as gasoline (TPH-g), in accordance with EPA Method 8020 for volatile <br /> aromatics (benzene, toluene, ethylbenzene and xylenes: BTE&X) and in accordance with EPA <br /> Method 8260 and 8260m for volatile organic compounds, methyl-tertiary butyl ether (MTBE), <br /> tertiary butyl alcohol (TBA),di-isopropyl ether(DIPS), ethyl tertiary butyl ether(ETBE)and tertiary <br /> amyl methyl ether(TAME). <br /> Laboratory reports of both soil and ground water analyses, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports and sample chain-of-custody documentation will be <br /> presented in a report with the findings and recommendations. <br /> 4.0. PROCEDURES <br /> 4.1. INSTALLATION OF GROUND WATER MONITORING WELLS <br /> The following procedures will be performed for the installation of monitoring wells: <br /> 1. Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper <br /> city/county soil boring permits. <br /> 2. Mark boring locations at least 48 hours in advance for an Underground Service Alert (USA) <br /> check of underground utilities or pipes. <br /> 3. Advance the following three soil borings; one to a depth of 20 feet bsg and two to a depth <br /> of 10 feet bsg using a truck-mounted drill rig equipped with 8.25-inch diameter hollow stem <br /> augers. <br /> 4. Decontaminate all sampling equipment in an alconox solution and rinse twice with water <br /> prior to each sampling run. Steam-clean auger flights before advancement of each boring. <br /> 5. Collect soil samples at 5-foot intervals from each boring, beginning at 5 feet bsg, utilizing <br /> a California split-spoon sampler and pre-cleaned 2-inch by 6-inch brass sleeves. <br /> 6. Preserve soil in the lead brass sleeve by covering both ends with Teflon sheets, capping, and <br /> sealing with tape. <br /> 7. Store the samples under ice and transport the samples in a chilled ice chest to a state-certified <br /> laboratory for analysis. <br />