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i <br /> iTABLE B 3 <br /> . Laboratory Results (Soil/(;eoprobe) <br /> B f L X VITBE TPH-G TEPH <br /> Detection5 0 5 0 -50 5 0 50 1 0 10-10 <br /> Sample I D Limits µg/kg µg/kg lig/kg 4W5 kg mg/kg µg/kg mg/kg <br />' 1 432-(,PI 9 ND ND ND ND NFA ND ND <br /> 1432-(,172-1 1 ND VD ND \17 \D ND 45 (motor oil range?) <br />' 1432-(,P-3-10 N 'SID ND VD 14 ND 39(motor oil rangt- <br /> 1432-6N-5 920 1 500 NIN 100) \\)(100) 14 000 28 55 (motor oil range') <br />' 1432-(,P5-13 ND \1) ND ND ND ND ND <br />' I nit Conversions Analytical <br /> ug/kg parts pi r billion(ppb) H rbc(-hen7cne, tOltiene. ethyl bl-n/cnL and total xylenes <br /> mg/kg parts pLr million(ppm) MTBL methyl tertiary butyl cthl-r <br /> 11111-6-total purolLum hydrocarbons quantified as gasolmt. <br /> TEPH -total extractabiL petroleum hydrocarbons quantified as diesel motor oil <br /> and kerosene <br /> ND-none detected at or above laboratory detection limits <br /> (100) -dLtection limits raised due to gasoline interference <br /> (motor oil range7)-organics detected within the motor oil range however <br />' do not match the motor oil pattern <br /> TABLE B 4 <br />' Chemical Analyses (Grounldwater/Geoprobe) <br /> B I E X MTBE TPH-G TLPH <br />' Detection 03 03 03 06 1 0 005 0 05-0 5 <br /> Sample I D Limits µg/1 µg/i µg/1 µg/l µg11 µg11 mg/l <br />' 1432-GPI-8129196 ND 03 'SID ND ND ND ND <br /> 1432-(,P2-8/29/96 04 06 ND 0 6 ND ND ND <br />' 1432-GP4-8/29/96 69 600 66 400 1,300 27 ND <br /> 1432-GP5-8129/96 ND ND ND ND ND ND ND <br />' Unit(onversions Analytical <br /> µg/1 parts per billion(ppb) 13TFX-benzene,toluene, ethyl benzene and xylene <br /> mg/l parts per million(ppm) MTBE-methyl tertiary butyl ether <br /> TPIA-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 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 /> t the PIIS/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 />