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' Site Background Information: Fisco Warehouse
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<br /> 14,000 mg/kg.Benzene was detected in only one sample(B 1-40), at a concentration of 0.042 mg/kg.
<br />' Toluene,ethylbenzene,and xylenes were detected in samples from B 1,B3,and B5 at concentrations
<br /> as high as 1,600 mg/kg(xylenes in B5-25). TPH-d was detected in samples from B1,B3, and B5 at
<br /> concentrations as high as 12,000 mg/kg (B3-10 and B3-15). None of the samples analyzed from
<br /> I borings B2 or B4 contained detectable concentrations of TPH-g, TPH-d, volatile aromatic
<br /> compounds benzene, toluene, ethylbenzene, and xylenes (BTEX), or methyl tertiary-butyl ether
<br /> (MTBE).
<br /> From 22 to 24 February 2000, four soil borings (MW-1 through MW-3 and B6) were advanced at
<br /> the site. TPH-g was detected in nine of the 16 soil samples analyzed at concentrations as high as
<br />' 6,700 mg/kg; TPH-d was detected in seven of the 16 soil samples analyzed at concentrations as high
<br /> as 5,800 mg/kg. Benzene was detected in four of the 16 samples at concentrations as high as
<br /> 0.027 mg/kg. Toluene, ethylbenzene, and xylenes were detected in eleven of the 16 samples at
<br />' concentrations as high as 370 mg/kg. MTBE was not detected in any samples analyzed. Petroleum
<br /> hydrocarbons were not detected in five of the 16 soil samples analyzed.
<br />' In February 2001, four pilot soil borings were advanced at the site. Pilot borings MW-4 through
<br /> MW-7 were completed as ground water monitoring wells using two-inch diameter PVC casings with
<br /> 0.020-inch slotted screens installed from approximately 60 feet to 40 feet bsg and with blank casing
<br /> extending to the surface. A total of 16 soil samples were analyzed for TPH-g, TPH-d, BTEX, 1,2-
<br /> dibromoethane (EDB), 1,2-dichloroethane(1,2-DCA), and the suite of five fuel additives. None of
<br /> the analytes were detected at or above laboratory reporting limits in the soil sample analysis.
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<br /> On 10 and 11 January 2002, three soil boring (CPT-1, CPT-2, and CPT-3) were advanced on-site
<br /> utilizing CPT technologyto model the geologic andhydrogeologic framework and to assess potential
<br /> dissolved petroleum migration pathways beneath the site. Soil borings CPT-1, CPT-2, and CPT-3
<br /> were advanced vertically to total depths of 96 feet bsg, 134 feet bsg, and 125 feet bsg,respectively,
<br />' utilizing a 25-ton truck-mounted CPT drill rig equipped with 1,50-inch diameter hollow-stem rods.
<br /> A total of five grab ground water samples were collected from CPT-1, CPT-2, and CPT-3
<br />' and submitted for laboratory analysis for TPH-g, TPH-d, BTEX, EDB, 1,2-DCA, and the
<br /> suite of five fuel additives. Ground water samples were collected from: CPT-1 between
<br /> 92 feet and 96 feet bsg (CPT-1-92-96); CPT-2 between 76 feet and 80 feet bsg
<br />' (CPT-2-76-80) and between 92 feet and 96 feet bsg (CPT-2-92-96); and CPT-3 between
<br /> 74 feet and 78 feet bsg(CPT-3-74-78) and between 92 feet and 96 feet bsg(CPT-3-92-96).
<br /> IGround water samples CPT-2-76-80 and CPT-3-74-78 were collected from HU1.TPH-d was
<br /> detected in sample CPT-3-74-78 at a concentration of 64 micrograms per liter(µg/1). Total
<br /> xylenes were detected in sample CPT-2-76-80 at a concentration of 0.97µg/1.No other target
<br /> analytes were detected in samples CPT-2-76-80 and CPT-3-74-78.
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<br /> IAdvanced GeoEnvironmental,Inc
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