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TABLE 3 LABORATORY ANALYSIS - GROUNDWATER Chase Chevrolet/Auto Investments Stockton, Calforma Page 3 of 3 All results in ppb (µg/P) DATE: SAMPLE TPHQ* B T E X "Ho HVO 1Q 5131-611194 SB-3" 320,000 28,000 61,000 5,700 31,000 NA NA SB-4" 630 19 31 27 100 NA NA SB-5` 570 14 10 <0 50 81 NA NA 06/03/94 MW-8 <50 <0 50 <0 50 <0 50 <0 50 <50 NO 41) MW-9 96,000 1,500 16,000 3,700 18,000 NA NA 08/05/94 MW-1 2,400 90 240 120 680 NA NA MW-2 65 <0 50 079 <0 50 37 NA NA MW-3 FREE PRODUCT 1 17 FEET IN THICKNESS MW-4 480 36 25 57 43 NA NA MW-5 120 <0 50 060 <0 50 <0 50 NA NA MW-6 1,600 88 76 91 350 NA NA MW-7 2,700 330 190 170 530 NA NA MW-8 <50 <0 50 <0 50 <0 50 <0 50 NA NA MW-9 60,000 1,900 9,900 4,000 19,000 NA NA 12/20/94 MW-1 3,000 63 80 150 660 NA NA MW 2 59 <0 50 <0 50 066 69 NA NA MW-3 FREE PRODUCT 0 85 FEET IN THICKNESS MW-4 150 1 9 054 26 21 NA NA MW-5 <50 <0 50 <0 50 <0 50 <0 50 NA NA MW-6 5,000 200 160 200 1,100 NA NA MW-7 13,000 1,200 900 600 2,400 NA NA MW-8 <50 <0 50 <0 50 <0 50 <0 50 NA NA MW-9 96,000 25,000 14,000 3,400 15,000 NA NA Notes ppb = parts per billion = pg/1 = micrograms per liter B = Benzene T = Toluene E = Ethyibenzene X = Xylenes TPHG = Total Petroleum Hydrocarbons as Gasoline analyzed by modified EPA method 8015 = Also reported as total purgeable petroleum hydrocarbons as gasoline (TPPH as gas) Benzene,Toluene, Ethylbenzene, and Xylenes analyzed by EPA method 8020 TPHD = Total Petroleum Hydrocarbons as Diesel analyzed by modified EPA method 8015 HVOs = Halogenated Volatile Organics analyzed by EPA method 8010 < = Non-detectable at or above method detection limit = Hydropunch Samples = Method Detection Limit Varies (0 511 0), See Analytical Data Sheets for Specific Constituent Detection Limits 1500701TABLESITABLES