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' TABLE B.3 <br /> Laboratory Results (Holl/Geoprobe) <br /> tB r H X MTBE TPH-G TEPH <br /> Detection 50 so 50 so 50 10 10-10 <br />' Sample 1 D Limits µg/kg µg/kg µg/kg µg/kg mg/kg pg/kg mg/kg <br /> 1432-CiP1-9 ND ND ND ND ND ND NC) <br /> 1,432-(,p2-11 \D ND NO Nr) N1) ND 45 (motor oil rangL') <br /> 1432-(,P-3-10 1NI) ND ND ND 14 ND 39(motor oil rarige°) <br />' 1432-(,P4-5 920 1 500 ND(100) ND(100) 14 000 28 55 (motor oil rang,,�} <br /> 1432-GF5-13 ND ND ND ND ND ND NI) <br />' 1,nit Conversions Analytical <br /> µg/kg parts per billion(ppb) BTF,X—benzene tolmnc ethyl b,nz,nc and total xylLnas <br /> mg/kg parts per million(ppm) V11 BE methyl tertiary butyl ether <br /> I PH-(i total petrol,,um 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 laboratory detection limits <br /> (140)—detection limits raised due to gasoline mterterence <br />' (motor oil range?)—organics detected within the motor oil range however <br /> do not match the motor oil pattern <br /> TABLE B 4 <br /> Chemical Analyses (G ro u ndwater/Geop robe) <br /> B T E X MTBE TPH-G TEPH <br /> Detection 03 03 03 06 10 005 0 05-0 5 <br /> Sample I D Limas µg/1 µg/l µg/l µg/1 µg/l µg/1 mg/I <br /> 1432-GP1-8/29/96 ND 03 ND ND ND ND ND <br /> 1432-GP2-8/29/96 04 06 ND 06 ND ND ND <br /> 1432-GP4-8129/96 69 600 66 400 1 300 27 ND <br /> 1432-GP5-8/29/96 ND ND ND ND ND ND ND <br /> Unit Conversions Analytical <br /> Iig/l parts per billion(ppb) BTEX—benzene toluene ethyl benzene and xylene <br /> mg/I parts per million(ppm) MTBE- methyl tertiary butyl ether <br /> I TPH-(j=total petroleum hydrocarbons quantified as gasoline <br /> TEPH=total extractable petroleum hydrocarbons quantified as diesel motor oil <br /> and kerosene <br /> ND none duteted at or above the reported laboratory detection limits <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 /> I and Groundwater Investigation Report, prepared by Condor, dated September 30, 1996) Mr Ronald Rowe of <br /> the PITS/EHD 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 /> Reclamation District in July, 1997 <br />