ARCHIVED REPORTS XR0007000 - Laserfiche WebLink

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i Hi v;IHI -ndd,1--j ti,»3 Lid I capillary fringe. Because of the eery loose peaty soil, however. the soil sample from MW-3 at approximately 4 feet bgs was not retained by the sampler. ( VA-IID and OVA-Fil) mcasurements of 3 and 6 parts per million (ppm) total organic vapors. respcctively, and 110 petroleum hydrocarbon odor were noted for the soil sample collected at ' approximately six feet bg,, frorn OVA-PID and OVA-FID measurements of 3 and 5 ppm total organic vapors. respectively, and no petroleum hydrocarbon odor were noted for the soil sample collected at approximately four feet bgs from MW-2. An OVA-PID measurement of 340 ppm total organic vapors and a strong petroleum hydrocarbon odor were noted for the soil sample collected at ' approximately six feet bgs from M\k'-4. The OVA-FID malfunctioned during the drilling of MW-4. No petroleum hydrocarbon odor was noted emanating from the groundwater during the ' development and sampling of the monitor wells. A check of the groundwater surface with a transparent bailer prior to purging the wells during development and sampling did not reveal the presence of a sheen or floating product. ' 4.2 Laboraton, Analysis Analysis of the soil sample collected at approximately 6 feet bgs from the monitor well M\V-1 boring indicated that TPH-G, BTEX, TEPH constituents, and the gasoline additives/oxygenates were not detected at or above the laboratory reported detection limits. Analysis of the soil sample collected ' at approximately 4 feet bgs from the monitor well MW-2 boring indicated that toluene was present at 16 pg/kg, TPH-G was present at 1.2 mg/kg, and h1TBE vvas present at 1,300 }4g/kg. TEPH ' constituents. B X, and the gasoline additives/oxygenates other than MTBE were not detected at or above the laboratory reported detection limits in the soil sample collected at approximately 4 feet bgs from the monitor well MW-2 boring. Analysis of the soil sample collected at approximately 6 feet bgs from the monitor well MW-4 boring indicated that ethyl benzene was present at 680 µg/kg, total ' xylenes were present at 6,000 pg/kg, and TPH-G was present at 28 mg/kg. TEPH constituents, benzene, toluene, and the gasoline additives/oxygenates were not detected at or above the laboratory ' reported detection limits in the soil sample collected at approximately 6 feet bgs from the monitor well MW-2 boring. The soil sample analytical results are presented in Table 4.1 on the next page and IN ' L1� CONDOR