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TABLE 1 (Continued) CUMULATIVE ANALYTICAL RESULTS -SOIL San Joaquin County Motor Pool, 1810 East Hazelton Avenue, Stockton, California OXYGENATES SAMPLE DATE SAMPLE SAMPLE ETHYL- TOTAL LOCATION SAMPLED ID DEPTH TRPH TPH-D TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA LEAD MW-1 03117/99 81-7 7 NA NA ND<1 ND10.005 ND,0.005 ND<0.005 ND<0.005 ND-0.005 NA NA NA NA NA NA 87-13 13 NA NA 140<1 ND,0.005 1413<0.0D5 ND,0.005 ND,0.005 ND,0.005 NA NA NA NA NA NA 81-18 18 NA NA ND<1 ND<0.005 ND,0.005 NWD05 ND,0.005 9010.005 NA NA NA NA NA NA Bi-23 23 NA NA 4.4 ND,0.005 0.35 0.17 1.4 ND<0.005 NA NA NA NA NA NA 81-28 26 NA NA 1,500 0.45 33 22 180 0.22 NA NA NA NA I NA 81-33 33 NA NA 1,800 1.1 40 35 210 1.4 NA NA NA NA NA 81-38 38 NA NA 3,500 45 450 230 1,200 7.8 NA NA NA NA NA 6143 43 NA NA 3,300 43 140 43 340 21 NA NA NA NA NA 8148 48 NA NA 1,800 22 68 24 180 17 NA NA NA NA NA 81-53 53 NA NA 120 3.1 6.5 1.7 13 1.7 NA NA NA NA NA B1-60 60 NA NA 71 2.2 5.2 1.2 11 1.9 NA NA NA NA NA MW-2 03118/99 82-5 5 NA ND<10 NDO ND<0005 ND<0.005 ND,0.005 ND10.005 ND<0.005 NA NA NA NA INA rNA B2-10 10 NA ND<10 ND<t ND<0.005 ND10.005 ND<0.005 0.012 ND,0.005 NA NA NA NA 82-15 15 NA ND,10 ND,1 ND,0.005 0.0054 0.0078 0.083 ND,0.00 NA NA NA NA B2-20 20 NA ND<10 ND<l 0.007 ND<0.005 0.01 0.055 ND,0.005 NA NA NA NA 82-25 25 NA ND-10 3.7 0.034 0.044 0.034 0.29 0.019 NA NA NA NA 82-30 30 NA ND<10 3.6 0.069 0.26 0.085 0.91 0.008 NA NA NA NA 62.35 35 NA NO-10 17 0.87 2.2 0.32 3 0.092 NA NA NA NA 82-40 40 NA 51 110 0.75 4 1.8 15 0.12 NA NA NA NA 6245 45 NA ND<10 9.9 0.71 1.8 0.14 1.4 0.089 NA NA NA NA NA NA 82-50 50 NA ND<10 9.3 1.3 0.34 0.21 1.8 0.12 NA NA NA NA NA NA B2-55 55 NA ND-ID 4.3 1.2 0.0094 0.014 0.37 0.095 NA NA NA NA NA NA 62-60 60 NA ND<10 21 2.3 0.89 0.29 2.7 0.26 NA NA NA NA NA MW.3 11/29/01 MW3-00 40 NA NA ND<1 ND<0.005 ND<0.005 ND,0.005 ND-0,005 N0,0.005 ND<0.005 ND<0.005 ND,0.UD5 ND<0.005 ND-0.0 55r!NA MW3<5 45 NA NA ND<1 ND<0.005 ND<0.005 ND<0.0M ND<D.005 ND,0.005 ND<0005 ND<0.0D5 ND,0.005 ND,0.005 ND<0.005 MW3-55 55 NA NA ND<1 ND<0.005 ND-0,005 NO,0.005 ND<0.005 ND<0.D05 ND<0.005 ND<0.005 ND<0.005 ND-0 ND<0.005 NOTES: All results are reported in milligrams per kilogram(mg/kg)Which translates to parts per million(ppm) Sample depths are in feet below ground surface Total Recoverable Petroleum Hydrocarbons(TRPH)by EPA Method 418,1 Total Petroleum Hydrocarbons as Diesel(TPH-D)by EPA Method 8015M Total Petroleum Hydrocarbons as Gasoline(TPH-G),benzene,toluene,ethylbenzene,xylenes(BTEX)by Modified EPA Method 80201801 5M(Prior to November 2001) Methyl tertiary butyl ether(MTBE)by EPA Method 8020(Prior to November 2001,except UST#1 Replacement samples collected 11/4/98,which was by EPA Method 8260) TPH-G,BTEX and MTBE by EPA Method 82608(Beginning November 2001) Other oxygenates:Di-isopropyl ether(DIPE),Ethyl-t-butyl ether(ETRE),Tert-amyl methyl ether(TAME)and Ted-Butanol(TBA)by EPA 8260 or 8260B 1,2-Dichloroethane(1,2-DCA)analyzed by EPA Method 82608 Total Lead by EPA Method 7420 or 6010/200.7 ND<1=Not Detected at reporting limit of 1 ppm NA =Not Analyzed