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a <br /> 15 June 1999 <br /> AGE-NC Project No. 98-0534 <br /> Page 6 of 13 <br /> findings and recommendations. <br /> 3.3. GRAB GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> Grab ground water samples will be collected from three or more probe boring using a Geoprobe <br /> water sampling assembly. Samples will be collected into 40-m1 volatile organic analysis(VOA)vials <br /> and 1-liter amber bottles as appropriate for the required analyses. Ground water sample collection <br /> procedures are presented in Section 4.1.2. Ground water samples will be analyzed by a DHS- <br /> certified laboratory for: <br /> • TPH-d by EPA Method 8015 Modified; <br /> • TPH-g by EPA Method 8015 Modified; <br /> • BTEX by EPA Method 8020; and <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. <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 /> 3.4. MONITORING WELL INSTALLATION <br /> 3.4.1. Soil Sampling Collection and Analysis <br /> A minimum of five soil borings will be advanced using conventional auger drilling as pilot borings <br /> for collection of soil samples and the installation of ground water monitoring wells. The purpose of <br /> the monitoring wells are to: <br /> • Assess the lateral petroleum hydrocarbon impacts to ground water and <br /> • Assess the flow direction of impacted water north from the former UST area. <br /> As shown on Figure 2 ground water monitoring wells are located approximately 10 feet north of the <br /> former UST area and at locations surrounding the former UST area. Upon installation, each <br /> monitoring well will be given a designation. <br /> Advanced CeoEnvironmental,Inc. <br />