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I I TABLE A ' INDEPENDENT TRUCKING FACILITY, 1145 W. CHARTER WAY, STOCKTON CA RESULTS OF WATER ANALYSES FROM MONITORING WELLS Samples taken by- Del-Tech Beotechnical Support Services ' Analyses performed by Sherwood Laboratory, Hillmar, CA Laboratory method used & detection limits BTEX EPA 602; ug/L; 0.30 TPH-B EPA 5030/8015M; ug/L; 50.0 ' TEPH - EPA 3510/8015M; ug/L; 50.0 MTBE - EPA 602; ug/L; 5.0 CHLORONATED SOLVENTS - EPA 8010; ug/L; varies MW-1 MW-2 MW-3 1 Date 7/95 12/95 4/96 7/96 7/95 12/95 4/96 7196 7/95 12195 4196 7196 Benzene NO NO <3 ND<.3 NO NO NO NDC 3 0 6 NO 1 0 12.0 ' Toluene 4.0 6.0 9.0 0.7 0.4 NO NO NDC.3 NO NO NO ND<.3 E. Benzene NO ND <3 ND<.3 NO NO NO ND<.3 ND NO ND NDC.3 Xylenes 0.4 NO <3 0.5 0.5 NO ND NDC.3 ND NO NO ND<.3 TPHg 78 NO 1933 NDC50 ND NO NO NDC50 NO NO ND ND<50 ' TEPH ND NO NO ND<50 ND 57** ND NDC50 ND ND NO ND<50 MTBE <50 ND<5.0 NO ND<5.0 NO NDC5 0 EPA 8010 NT NT NT NO ALL NT NT NT NO ALL NT NT NT ND ALL ' MW-4 MW-5 MW-6 Date 7/95 12/95 4/96 7/96 7/95 12/95 4/96 7/96 7/96 ' Benzene 0.5 NO 0.9 0.4 NT 2120 950 1370 ND( 3 Toluene 0.5 1.0 7,0 ND<.3 NT 580 560 566 ND<.3 E Benzene NO 17 0 7.0 2.0 NT 530 390 500 ND<.3 Xylenes 12.0 10.0 9.0 6.0 NT 2120 1780 1600 0.7 TPHg ND 417.0 90.0 57.0 NT 19100 22000 14900 ND<50 TEPH 6900+ 2020* 4150* 1840* NT NO NO ND<50 ND<50 MTBE NO ND<5.0 NO ** ND<5.0 EPA 8010 NT NT NT NO ALL NT NT NT ND ALL NO ALL MW-7 MW-8 MW-9 ' Date 7/96 7/96 9/96 Benzene ND<.3 6.0 10800 Toluene ND<.3 1.0 9840 E. Benzene ND<.3 1.0 3360 Xylenss ND<.3 1.0 14000 TPHg NDC50 56.0 111000 TEPH ND<50 N1<50 N1<50 1 MTBE ND<5.0 ND<5.0 ND<5.0 EPA 8010 6.9*** 22.0**** NO ALL ' * - Diesel range organics r* - Motor oil range organics a** - Trichloroethene 1 , 1-Dichloroethane ' WM J HUNTER & ASSOC. SUMMARY OF WATER ANALYSES FROM ALL NINE 2220 LOMA VISTA OR MONITORING WELLS SINCE START OF PROJECT TABLE A SACRAMENTO, CA 95825