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I <br />' TABLE B 3 <br /> Laboratory Results (Soil/Geoprobe) <br />' B r F X MTBE TPH-G TEPH <br /> Detection SO 50 50 50 50 10 1 0-10 <br />' Sample I D Limits ktg/kg µg/kg ug/kg µg/kg mg/kg µg/kg mg/kg <br /> 1132-(,Pl-9 ND ND ND ND ND NT) ND <br /> 14124-P2-11 ND ND ND ND ND ND 45 (motor oil range') <br /> 1432-(,P-1-10 \D ND \r} \D 14 ND 19(motor oii range) <br /> 1132-(rl'4-5 1)20 1 500 ND(lN) ND(100) 14 000 28 55 (motor Oil rangL') <br /> 1132-C,P5-13 NI) til) NI) ND ND ND ND <br /> Snit( onVI-iSiom, Analytical <br /> pC/kg parts per billion(ppb) B ILX—benzene tolutm ethyl benzene and total xyli.nes <br /> mr/k„* party pLr million(ppm) NITBF methyl tertiary butyl r_ther <br /> TPI 1-6 total petroleum hydrocarbons quantitiLd as gasoline <br /> I ri Pti total txtractabfL pttrolLum hydrocarbons quantified as diesel motor oil <br /> and kerosene <br /> ND none,dtttetcd at or above laboratory dettctton limits <br /> (100) d0ection limits raised due to gasoline.mtLr-fercnce <br /> (motor oil range')) organics detCLUA within Idle motor oil rangt howCver <br /> do not match the,motor nil pattern <br /> TABLE 8.4 <br /> JimChemical Analyses (Groundwater/Geoprobe) <br />' B I E X MTBE TPH-G TEPH <br /> Detection 03 03 03 06 1 0 005 0 05-0 5 <br /> Sample [D Limits µg/l µg/1 µg/1 µg/1 Fig/1 )tg/I mg/l <br /> 1432-(;P1-8/29/96 ND 03 ND ND ND ND ND <br /> 1432-C,P2-8/29/915 04 06 ND 06 ND ND ND <br />' 1432-(1P4-8/29/96 69 600 66 400 1 300 27 ND <br /> 1432-GP5-8129/96 ND ND ND ND ND ND ND <br /> Unit Conversions Analytical <br /> )_eg/1 parts per billion(ppb) BTEX= benzene toluene i.thyl benzene and xylene <br /> mg/l parts per million(ppm) MTBE methyl tertiary butyl ether <br /> TPH-G total petroleum hydrocarbons quantified as gasoline <br /> TEPH -total extractable petroleum hydrocarbons quantified as diesel motor oil <br /> and kerosene <br /> ND- none detected at or above the reported laboratory dtti ction l imits <br /> Based on the results of the Geoprobe investigation, Condor recommended that monitor wells be installed at the <br /> site to investigate and monitor the lateral extent of the gasoline and diesel contamination plume (reference - Soil <br /> and Groundwater Investigation Report, prepared by Condor, dated September 30, 1996) Mr Ronald Rowe of <br /> the PHS/EIID approved the proposal for the monitor well installation in correspondence to Condor, dated <br /> February 6, 1997 Condor subsequently prepared the Work Plan for Monitor Well Installation, dated May 30, <br /> 1997 As described in Section 1 0 of this report, the Work Plan was approved by the PHS/EHD and the <br /> IReclamation District in July 1997 <br />