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TABLE B.3 <br /> Laboratory Results(Soil/Geoprobe) <br /> B T E X MTBE TPH-G TEPH <br />' Detection 50 5 0 50 50 50 10 1-0-10 <br /> Sample 1 D Limits µg/kg pg/kg µg/kg µg/kg mg/kg µgtkg mg/kg <br />' 1432-GP 1-9 ND ND ND ND ND ND ND <br /> 1432-GP2-1 1 NDND ND ND ND ND 45(motor oil range?) <br />' 1432-GP-3-10 ND ND ND ND 14 ND 39(motor oil range?) <br /> 1432-GP4-5 920 1 500 ND(100) ND(100) 14 000 28 55(motor o t I range�J:: <br /> 7} <br /> 1432-CIP5-13 ND ND ND ND ND �ND ND <br />' Anal cal i <br /> Unit C onversions Analytical <br /> parts per biliton(pph) BTEX=benzene,toluene ethyl benLene and total xylenes <br />' mgn- partspix million(ppm) MTBE=methyl tertiary butyl ether <br /> TPIT-G=total petroleum hydrocarbons quantified as gasoline <br /> TFPH=total extractable petroleum hydrocarbons quantified as diesel motor oil, <br /> and kerosene <br />' ND=none detected at or above laboratory detection limits <br /> (100)=detection limits raised due to gasoline interference <br /> (motor oil range9)—organics detected within the motor oil range however <br /> do not match thi,motor oil pattern <br /> TABLE BA <br /> Chemical Analyses (G rou ndwater/Geop robe) <br /> B T E X MTBE TPH-G TEPH <br />' Detection 03 03 03 06 to 005 0 05-0 5 <br /> Sample I D L1inits µg11 µg11 µg11 µgJl µg11 µg/1 mg/l <br /> 1432-6P1-8/29196 ND 03 ND ND ND ND ND <br />' 1432-(3P2-8129196 04 06 ND 06 ND ND ND <br /> 1432-(il4-8129196 69 600 66 400 1 300 27 ND <br /> 1432-GP5-8/29/96 ND ND ND ND ND ND ND <br /> Unit C onvetslons Analytical <br />' poll pans per biliton(ppb) BTEX=benzene toluene ethyl benzene,and xylene <br /> mgA 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 detection limits <br /> Based on the results of the Geoprobe investigation, Condor recommended that monitor wells he 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/EHD approved the proposal for the monitor well installation in correspondence to Condor, dated <br /> February 6, 1997 Condor subsequently prepared the Work Pian 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 PHSIEHD and the <br /> Reclamation District In July, 1997 <br />