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30 November 1998- <br /> AGE-NC <br /> 998AGE-NC Project No. 98-0520 <br /> Page 4 of 9 <br /> ' Laboratory reports for ground water analyses, testing methods, laboratory quality'assurance/quality <br /> control (QA/QC)reports, and sample chain of custody documentation will be presented in a report <br /> with the findings and recommendations. <br /> 2.4. MONITORING WELL INSTALLATION AND SAMPLING <br /> If results of the initial soil and ground water investigation indicate significant petroleum hydrocarbon <br /> impacts to ground water, three ground water monitoring wells will be installed at the site. Proposed <br /> ' locations for monitoring wells will be submitted to the PHS-EHD for approval prior to installation. <br /> The proposed monitoring.wells will provide repeatable sampling points for the monitoring of <br /> impacts to ground water and allow determination of site-specific ground water flow direction.'The <br /> tprocedures for monitoring well installation and collection of soil and ground water samples are. <br /> presented in Section 3.4 and Section 3:6, respectively. Monitoring well installation activities are <br /> described below. <br /> 2.4.1. Permitting and Pre-Field Work Activities <br /> Prior to monitoring well installation, any applicable well permits will be obtained, from the <br /> ' PHS-EHD. Prior to mobilization, each soil probe location will be clearly marked and an utility <br /> clearance obtained through Underground Service Alert. <br /> ' 2.4.2. Soil Sample Collection and Analysis <br /> ' During the drilling of the proposed monitoring well borings, soil samples will be'collected at five- <br /> foot intervals from ground surface to the total depth of the borings. Field procedures for the <br /> collection of soil samples in presented in Section 3.4. At least on soil sample from each monitoring <br /> ' well boring will be submitted for laboratory analysis. <br /> Selected soil samples will be analyzed by a DHS-certified laboratory for the following constituents: <br /> ' • TPH-g by EPA Method 8015 Modified/5030• <br /> ' • BTEX by EPA Method 8020; and <br /> • Oxygenating compounds including MTBE, TBA, DIPE, ETBE, and TAME by EPA Method <br /> 8260. <br /> Laboratory reports for ground water analyses, testing methods, Iaboratory quality assurance/quality <br /> ' Advanced GeoEnvironmental,Inc. <br />