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Beacon Station No. 513 January 19, 1998 Lodi,California Tank Closure Report Table 1 (cont.) Analytical Results for Soil Samples Sample No. Sample TPHg MTBE MTBE Benzene Toluene Ethyl Xylenes Total Oxygenates Date _80_20_ _82_60 _ _____ be_nze_ne_ _____ Lead _ 82_60_ �PPm) �PPm) 1PPm) �PPm) �PPm) �PPm) 1PPm} IPAm)� ��PPm)-- DISPENSERS D-1/2-3' 11/17/97 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 na $ D-3-3' 11/17/97 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 na $ D-4/5-5' 11/17/97 7.4 7.7 14 0.0086 0.13 0.053 0.56 na /l D-4/5-8' 11/18/97 na na 17 na na na na na /2 D-6-3' 11/17/97 <1.0 <0.0050 1 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 na $ SPOTLPILES. '. SP-1-A,B,C,D 11/17/97 2.1 0.I6 na <0.0050 <0.0050 <0.0050 0.18 7 na SP-1-E,F,G,H 11/17/97 <1.0 0.15 na <0.0050 <0.0050 <0.0050 0.0071 6 na SP-2 A,B,C,D 11/18/97 <1.0 0.039 na <0.0050 <0.0050 <0.0050 <0.0050 <2.5 na SP-2-E,F,G,H 1I/18/97 <1.0 0.035 na <0.0050 <0.0050 <0.0050 0.0058 <2.5 na SP-3 A,B,C,D 11/20/97 <1.0 <0.0050 na <0.0050 <0.0050 <0.0050 <0.0050 na na SP-4 A,B,C,D 12/17/97 <1.0 <0.0050 na <0.0050 <0.0050 <0.0050 <0.0050 na na SP4-E,F,G,H I2/I7/97 <1.0 <0.0050 na <0.0050 <0.0050 <0.0050 <0.0050 na na TPHg=total petroleum hydrocarbons as gasoline ppm=parts per million MTBE=methyl tertiary butyl-ether na=not analyzed $=nd=none detected(above laboratory detection limits)for oxygenates di-isopropyl ether(DIPE), ethyl-t-butyl ether(ETBE),tert-amyl methyl ether (TAME),methanol,ethanol,and tert-butanol by EPA Method 8260. See laboratory data sheets for detection limits. /1 =0.037 ppm TAME, 1.2 ppm tert-butanol, 9.1 ppm methanol /2=0.039 ppm TAME, 1.6 ppm tert-butanol, 9.2 ppm methanol 1513-1 Ltcr HORIZON ENVIRONMENTAL INC.