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M M <br /> LEI <br /> GROUNDWATER MONITORING DATA AND SAMPLE ANALYSIS RESULTS <br /> Tosco 76 Service Station 5886 <br /> 2701 West March lane <br /> Stockton California <br /> (Page 2 of 2) <br /> well IDI Sampling SUBI DTW Elev TPPKg B T E x TPPHd Ethanol MTBE Methanol <br /> (TOL) Date <br /> < Feet > < ppb > <br /> W-6M W9S <br /> (-064) 4/1415799 NLPH 653 717 ND ND ND ND ND ND ND ND ND <br /> I <br /> W-6MW91 <br /> (-085) 4/1415/99 NLPH 634 719 ND ND ND ND ND 625 ND ND ND <br /> W-6M W 9D <br /> (494) 411415!99 NLPH 624 718 ND ND 114 ND ND ND ND ND ND <br /> WfiMW10S <br /> (1 49) 4114 15199 NLPH 619 768 ND ND ND ND ND ND ND 5 01 ND <br /> W 6MW101 <br /> (1 58) 4114 15799 NLPH 609 767 ND ND ND ND ND ND ND 200 ND <br /> r <br /> W 5MW10D <br /> (1 67) 4114 15199 NLPH 594 761 ND 0 954 202 ND 0 995 196 ND 11 3 ND <br /> Notes <br /> 5 = Shallow well <br /> 1 = Intermediate well <br /> D = Deep welt <br /> TOC Etevauon of top of well casing in feet relative to mean sea level <br /> SOW = Results of subjective evaluation of presencelthuAness of liquid phase hydrocarbons <br /> DTW = Depth to Water to feet below TOC <br /> Elev Groundwater elevation in feet relative to mean sea level <br /> BTEX = Benzene toluene ethylbenzene and total xylenes analyzed using EPA method 8020 <br /> TPPHg = Total purgeable petroleum hydrocarbons as g�solme analyzed using EPA method 8015 <br /> TPPHd = Total purgeable petroleum hydrocarbons as diesel analysed using EPA method 8015M <br /> Ethanol Ethanol analyzed using EPA method 82606 <br /> MTBE = MTBE analyzed using EPA nkthod 82608 <br /> Methanol = Methanol analyzed using EPA method 8015 nxalttied <br /> ppb — Parts per billion <br /> NLPH = No liquid phase hydrocarbons present in well <br /> ND = Not detected at or above laboratory method detection limits <br /> = Na applicable <br />