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- - - = - -- - TABLE 1 CUMULATIVE ANALYTICAL RESULTS - SOIL San Joaquin County Parking Garage, 130 N . Hunter Street, Stockton, Califomia OXYGENATES SAMPLE DATE SAMPLE SAMPLE ETHYL- TOTAL LOCATION SAMPLED ID DEPTH TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETRE TAME TBA LEAD TPH-D TPH-MO TPH-K B-1 05/27/94 81 -20 20 290 ND<1 ND<1 4.7 8.0 NA NA NA NA NA 7.0 NA NA NA B-2 05/27/94 82-18 18 250 ND<1 ND<1 1 .7 7.0 NA NA NA NA NA 8.1 NA NA NA TANK 1 08/13/96 TK1-N@12 12 960 ND<0.25 0.95 3.3 3.4 ND<0.25 ' NA NA NA NA ND<5END<100 NA NA TK1S@12 12 2,000 ND<2.5 26 7.1 16 ND<0.25 NA NA NA NA 11 NA NA TANK 2 08/13/96 TK2-N@9 9 270 ND<0.1 0.11 0.6 0.63 NA NA NA NA NA 9 NA NA TK2-S@9 9 1 ,000 ND<0,5 0.89 2.8 2.2 NA NA NA NA NA 8 NA NA DISPENSER 08/13/96 DISPENSER NA 129000 67 710 220 1 ,200 ND<0.25 ' NA NA NA NA 215 ND<1 ,000 21100 GA 02/02101 G1 -10 10 ND<1 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.01 6.3 ND<l ND<10 ND<1 Gt-20 20 ND<1 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.01 NA ND<1 23 ND<1 G1 -25 25 ND<7 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 NA ND<1 ND<10 ND<1 G1-30 30 2,000 0.56 0.26 16 15 ND<0.2 ND<0.2 ND<0.2 ND<0.2 ND<0.2EZNA ND<500 ND<10 550 G1 -35 35 240 0.1 ND<0.05 1 .2 1 .4 ND<0.05 ND<0.05 ND<0.05 ND<0.05 ND<0.05 ND<400 ND<70 390 G-2 02/02/01 G2-20 20 ND<1 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 NA ND<1 ND<10 ND<1 G2-25 25 ND<1 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 NA ND<1 ND<10 ND<1 G2-30 30 ND<1 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 NA ND<1 ND<10 ND<1 G-3 02/02/01 G3-20 20 4,600 0.68 0.22 80 4.2 ND<0.2 ND<0.2 ND<0.2 ND<0.2 ND<2 NA ND<21500 ND<10 2,30n G3-25 25 860 ND<0.05ND<0.05 0.2 0.21 ND<0.05 ND<0.05 ND<0.05 ND<0.05 ND<0.05 NA ND<600 19 510 G3-30 30 91100 1 .9 05 2.3 170 500 ND<0.05 ND<0.05 ND<0. ND<0.05 ND<0.05 NA ND<61000 ND<100 5,900 NOTES: All results are reported in milligrams per kilogram (mg/kg), which translates to parts per million (ppm) Sample depths in feet below ground surface Total Petroleum Hydrocarbons as Gasoline (TPH-G) analyzed by Method 5030/LUFT (2/2101 Samples analyzed by EPA Method 8260B) Benzene, toluene, ethylbenzene, xylenes (BTEX) analyzed by EPA Method 8020 (212101 Samples analyzed by EPA Method 8260B) Methyl-t-butyl ether (MTBE) analyzed by EPA Method 8020 (8/13/96 Samples) ' MTBE analysis confirmed by EPA Method 8260 Oxygenates: MTBE, Di-isopropyl ether (DIPE), Ethyl-t-butyl ether (ETBE), Tert-amyl methyl ether (TAME) and Tert-butanol (TBA) analyzed by EPA Method 82608 (2/2/01 Samples) Total lead by EPA Method 7420 (2/2/01 Samples analyzed by EPA Method 6010) TPH-Diesel (TPH-D), TPH-Motor Oil (TPH-MO), and TPH-Kerosene (TPH-K) analyzed by EPA Method 8015M ND<1 = Not Detected at reporting limit of 1 ppm NA = Not Analyzed for specified compound