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I iconcentrations as high as 12,000 ppm (B3-10,B3-15) None of the samples analyzed from born s B-2 or B-4 contained detectable concentrations of TPH-g, TPH-d, BTE&X or MTBE iFrom 22 to 24 February 2000 four soil borings (MW-I through MW-3 and B-6) were advanced at i the site TPH-g was detected in 9 of the 16 soil samples analyzed at concentrations as high as 6,700 parts per million(ppm,reported as milligrams per kilogram),TPH-d was detected w 7 of the 16 soil samples analyzed at concentrations as high as 5,800 ppm Benzene was detected in 4 of the 16 i samples at concentrations as high as 0 027 ppm Toluene,ethylbenzene and xylenes were detected in 11 of 16 samples at concentrations as high as 370 ppm MTBE was not detected in any samples analyzed Petroleum hydrocarbons were not detected in 5 of the 16 soil samples analyzed iIn February 2001, four pilot soil borings were advanced at the site Pilot borings MW4 through MW7 were completed as ground water monitoring wells using two-inch diameter PVC casing with i 0 020-inch slotted-screen installed from approximately 60 feet to 40 feet bsg and with blank casing extended to the surface A total of 16 soil samples were analyzed for TPH-g,TPH-d,BTEX,MTBE, EDB, 1,2-DCA and the suite of five fuel additives None of the analytes were detected at or above laboratory reporting limits in the soil sample analysis On 10 and 11 January 2002, three soil boring (CPT-1, CPT-2 and CPT-3) were advanced on-site i utilizing CPT technology to model the geological and hydro-geological framework and to assess potential dissolved petroleum-migration pathways beneath the site Soil borings CPT-1, CPT-2 and CPT-3 were advanced vertically to total depths of 96 feet below surface grade (bsg), 134 feet bsg i . and 125 feet bsg, respectively, utilizing a 25-ton truck-mounted CPT drill rig equipped with 1 50- inch diameter hollow-stem rods i A total of five grab ground water samples were collected from CPT-1,CPT-2 and CPT-3 and submitted for laboratory analysis for TPH-g,TPH-d,BTE::,MTBE,EDB, 1,2-DCA and the suite of five fuel additives Ground water samples were collected from CPT-1 at between i92 feet and 96 feet bsg(CPT 1-92-96), CPT-2 at between 76 feet and 80 feet bsg(CPT2-76- 80) and between 92 feet to 96 feet bsg(CPT2-92-96), and CPT-3 at between 74 feet and 78 ifeet bsg (CPT3-74-78) and between 92 feet and 96 feet bsg (CPT3-92-96) Groundwater samples CPT2-76-80 and CPT3-74-78 were collected from HUI TPH-d was i detected in sample CPT3-74-78 at a concentration of 64 micrograms per liter (µg/1) Total xylenes were detected in sample CPT2-76-80 at a concentration of 0 97 µg/1 No other target analytes were detected in samples CPT2-76-80 and CPT3-74-78 iGround water samples CPTI-92-96 and CPT2-92-96 were collected from HU2, sample CPT3-92-96 was collected at the boundary between HU2 and HU3 TPH-g and TPH-d were i detected in sample CPTI-92-96 at concentrations of 530 µg/1 and 98 µg/l, respectively Toluene, ethylbenzene and total xylenes were detected in sample CPT 1-92-96 at concentrations of 9 9 µg/1,20 µg/1 and 140 µg11,respectively No other target analytes were idetected in the samples from HU2 Benzene and fuel additives were not detected at or above laboratory reporting limits in any iof the ground water samples Advanced GeoEnwronmentai,Inc i