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15 February 2005 AGE-NC Project No. 02-0950 Page 4 of 7 outlined in section 3.2.. Selected ground water samples will be analyzed by a DHS-certified laboratory for the following constituents: • TPH-g and TPH-d by EPA Method 8015 Modified; and • Benzene, toluene, ethylbenzene and total xylenes (BTEX) and the fuel additives including methyl tertiary-butyl ether(MTBE),tertiary-butyl alcohol(TBA),di-isopropyl ether(DIPE), ethyl tertiary-butyl ether(ETBE), tertiary-amyl methyl ether (TAME), 1,2-dibromoethane (EDB)and 1,2-dichloroethane (1,2-DCA)by EPA Method 8260B. Laboratory reports for ground water analysis,testing methods, laboratory quality assurance/quality control (QA/QC)reports;and sample chain of custody documentation will be presented in a report with findings and recommendations. 3.3. SOIL AND GROUNDWATER SAMPLE COLLECTION AND ANALYSIS AGE proposes to advance four soil borings using direct push technology near the former UST areas to further assess petroleum hydrocarbon-impacted soil and ground water (Figure 2). The four soil borings will be advanced to approximately 30 feet b.sg.As each boring is advanced,soil samples will be collected at 5-foot intervals beginning at 5 feet bsg and extending to the total soil boring depth. In addition,grab ground water samples will be taken at first encountered ground water at each boring location. The proposed probe boring locations are as follows: • A soil boring approximately 30 to 35 feet south of well MW-3;in the parking lane of Lincoln Street; • A soil boring approximately 65 to 70 feet southeast of well MW-2,in the apartment building parking lot; • A soil boring approximately 35 to 40 feet east-northeast of well MW-2, on-site; and • A soil boring approximately 40 to 45 ,feet northwest of well MW-1, in the off-site parking/lumber yard area. The proposed soil boring locations may be modified due to field observations, geological data, or access agreement requirements. Field procedures for advancement of soil borings and collection of soil and ground water samples are presented in Sections 4.3 through 4.5.. Selected soil samples and the ground water samples collected from the soil borings will be submitted for laboratory analysis Advanced GeoEnvironmental,Inc.