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' 0 <br /> ' Report-Soil and Groundwater Investigation <br /> Hemtan&Helen's Marina <br /> September 30, 1996 <br /> ' Page-3- <br /> TABLE 1 <br /> Laboratory Results (Soil - August 1995) <br /> B T E X TPH-G TEPH <br /> Detection 5.0 5.0 5.0 5.0 1.0 1.0-10 <br /> Sample I.D. Limits: µg/kg µg/kg gg/kg µ9/k9 mg/kg mg/kg <br /> 1432-HPI-I1 (#) 1,200 3,100 5,500 22,000 300 190 (diesel) <br /> ' 1432-HP2-11 (#) ND ND 130 2,800 22 ND <br /> 1432-HP3-5.5 61 68 5.2 91 7.5 16 (diesel) <br /> Note:The last number in each sample ID indicates the depth at which the sample was collected. <br /> Unit Conversions: <br /> ' µg/kg:parts per billion(ppb) B,T,E,X =benzene,toluene,ethyl benzene,and total xylenes. <br /> mg/kg:parts per million(ppm) TPH-G=total petroleum hydrocarbons, quantified as gasoline. <br /> TEPH=total extractable petroleum hydrocarbons,quantified as diesel, <br /> motor oil,and kerosene. <br /> ' ND=none detected at or above laboratory detection limits. <br /> #=detection limits raised due to gasoline interference. <br /> ' TABLE 2 <br /> Laboratory Results (Groundwater/Hydropunch - August 1995) <br /> ' B T E X TPH-G TEPH <br /> Detection 0.3 0.3 0.3 0.6 0.05 0.05-0.5 <br /> ' Sample I.D. Limits: gg/L µg/L µg/L gg/L mg/L mg/L <br /> 1432-HPI-8/22/95 3.2 14 5.5 26 0.22 0.79 <br /> (diesel) <br /> ' 1432-HP2-8/22/95 0.4 1.3 ND 8.7 ND 0.57 <br /> (diesel) <br /> ' 1432-HP3-8/22/95 (#) 260 1 ND 8.4 1 36 1.0 0.24 <br /> (diesel) <br /> Unit onverstons: <br /> ' µg/L:parts per billion(ppb) B,T,E,X =benzene,toluene,ethyl benzene, and xylene. <br /> mg/L:parts per million(ppm) TPH-G=total petroleum hydrocarbons, quantified as gasoline. <br /> TEPH =total extractable petroleum hydrocarbons,quantified as diesel, <br /> motor oil,and kerosene. <br /> ' ND=none detected at or above the reported laboratory detection limits. <br /> #=detection limit raised due to gasoline interlarence. <br /> ' Based on the results of the August, 1995, investigation, Condor recommended additional <br /> ' investigation be conducted to evaluate the extent of the hydrocarbon plume (reference Soil and <br /> N� <br /> tt: <br /> CONDOR <br />