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1 <br /> . TABLE <br /> SUMMARY OF SOIL ANALYTICAL RESULTS (MONITORING WELLS) <br /> TOTAL PETROLEUM HYDROCARBONS AS GASOLINE AND DIESEL <br /> OXYGENATES AND VOCs <br /> Boring Number Sample EPA Method EPA Method EPA Method 8260 MTBE, BTEX and 8260 VOCs(uglkg) <br /> Monitoring Well Depth 8260B Gasoline 8015 Diesel ETBE,TAME,DIPS,TBA, ppb EDB and EDC <br /> (Feet) (eni;4W ppm (mg&i;)ppm Ethanol,Methanol <br /> (mBPa ppm <br /> MWDAX010' 10 ND NA ND ND <br /> MWD-1 X020' 20 ND NA 037 MTBE N D <br /> MWD-1X030' 30 ND NA ND ND <br /> MWO-1010' 10 ND NA ND ND <br /> MWO-1020' 20 ND NA ND ND <br /> MWO-2010' 10 ND NA ND ND <br /> MWO-2020' 20 ND NA ND ND <br /> MWO-3010' 10 ND NA ND ND <br /> MWO-3020' 20 ND NA ND ND <br /> Note N D— Not Detected at Method Detection Limits <br /> NA— Not Analyzed <br /> Detection Limits Vanes depending on Laboratory used <br /> 1 <br /> 5.3 Laboratory Analytical Results (Groundwater) <br /> Groundwater samples were analyzed for petroleum hydrocarbons, BTEX, <br /> Oxygenate Compounds and lead scavengers by EPA method 82606 (See Scope <br /> of Work, Appendix 11) <br /> Groundwater samples collected at the subject property showed elevated levels of <br /> MTBE in monitoring wells MWO-1X (deep well) and In previously sampled wells <br /> MW-1, MW-2, MW-3 and MW-4 The MTBE level in MWO-1X was 570 ppb <br /> This newly constructed deep well is located approximately twenty feet <br /> downgradient to the contamination source on the subject property The other <br /> newly constructed wells MWO-1, MWO-2 and MWO-2 were non detect for all <br /> Avalon Environmental Consultants 9627-001-7 <br /> Joe's Truck Plaza 15600 S Harlan Road <br /> 15,2 <br /> May t5,2002 Lathrop,California <br /> 8 <br />