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TABLE I M SANCHEZ, 1876 COUNTRY CLUB DRIVE, STOCKTON, CA SUMMARY OF RESULTS OF LABORATORY ANALYZES OF MATER SAMPLES FROM MONITORING HELLS Samples taken by Del-Tech 6eotechnicalo analysis by FSL lab prior to 2/1196 by SherHood Labs after. METHODSI BTEI-EPA 80201602; MTBE-EPA 8240; TPN-B-EPA 0015M; EPA 501 UNITS1 BTEX f MTBE, u91L; TPN-S, m41L; EPA 501, ugh DETECTION LIMITSi 07EX - 0.3, TPH-S - 0.05; EPA-501 0.5 NOTE. Detection limits for sale samples taken 0/25 6 12194 for BTEX increased due to sample matrix interferences. Refer to laboratory rorksheets for details MONITORING WELL #1 RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS COMPONENT 4121193 7/23193 11/1/93 1126/94 4/29/94 8/23194 12/29/94 3/23/95 811/95 12/8195 2/1/96 7/9196 12/18/96 Benzene 8250 13000 16000 )6300 8500 10000 9300 11000 12000 3200 10100 5475 9240 Toluene 275 3300 1000 490 1000 270 ISO 200 770 420 173 265 1110 EBenzene 650 2300 1700 650 1500 900 770 900 1800 1100 1020 645 983 Xylene 2250 13000 8300 2700 5400 3200 2400 3100 8000 1600 4200 1665 5180 TPH-6 23.6 23.0 28.0 21.0 17.6 23 25 6.1 19 0 13 0 53 0 32.0 43.1 MTBE NT 265 844 Bromodichloromethane ND NT NT NT Bromoform ND NT NT NT Chloraform ND NT NT NT Dibrosochloramethana ND NT NT NT Total Trihalomethanes ND NT NT NT MONITORING WELL 12 RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULT$ RESULTS RESULTS COhPONENT 4121193 7/23193 11/1193 1126/94 4129/94 8125194 12/29/94 3123195 8/1195 1218195 211196 719196 12/1B/96 Benzene 2.2 720 650 ND 13.0 1.8 76 4.1 NO 17.0 D.5 4 0 ND(.3 Toluene ND 210 ND 3.5 NO 1.1 1.0 ND ND 6 0 ND 10 0 ND(.3 EBenzene NO 82.0 ND 47.0 ND 3.6 5 7 ND NO 0.7 0.6 1.0 ND(.3 xylene ND 270 ND 59 ND 2.6 7.4 ND ND NO 0.4 8.0 ND(.3 TPH-S NO 1.9 3.3 0.63 0.41 .71 1.1 ND ND 0.14 .079 0.110 ND(50 MTBE NT NO ND(5 MONITORING WELL 13 RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS COMPONENT 4/21193 7/23193 11/1193 1126/94 4129194 8/25194 12/29/94 3/23/95 811195 1218195 211196 719196 12118/96 Benzene 730 2200 3300 2100 1000 2200 1500 1100 570 600 474 103 101 Toluene 35.0 600 120 53.0 30.0 ND 110 70 5.4 66 6.0 12.0 6.0 EBenzene 115 400 390 250 97.0 240 290 190 100 130 153 18 0 13.0 Xylene 240 1300 140 240 40.0 190 290 40 130 51 10.0 36.0 22.0 TPH-S 4.0 6.5 6.2 7.7 2.6 6.1 11 2.4 1 B 2.2 2 67 0 910 ,550 MTBE NT 8.0 12 0 Broaadichloromethane ND NT NT NT Brosofore ND NT NT NT Chloroform ND NT NT NT Dzbromachloroaetban a ND NT NT NT Total Trihalamethanes MD NT NT NT MONITORINS SELL 114 RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS COMPONENT 9/20/94 12/29/94 3123195 811195 12/B/95 211196 719196 12/10/96 Benzene ND ND ND ND 2.0 NO ND ND(.3 Toluene ND ND ND ND 12.0 ND ND ND(.3 EBenzene NO ND ND NO 3.0 ND ND 04.3 xylene ND ND ND ND 18.0 ND ND ND(.3 TPH-8 MD ND ND NO ND ND ND ND(50 MTSE NT ND NDO MONITORING WELL 15 RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS RESULTS COMPONENT 9126194 12/29/94 3/23195 811195 12/8/93 211/96 719196 12/18196 Benzene ND HD ND ND 0.7 ND ND ND(.3 Toluene NO ND NO ND ND NO ND ND(.3 EBenzane ND ND NO NO ND NO NO RNA Xylene ND ND ND ND ND ND ND ND(.3 TPHQ ND ND ND ND ND ND ND ND(50 MTBE NT NO ND(5 w2 `0 LOMAVI b ADR SUMMARY OF RESULTS OF WATER ANALYSES 2220 LOMA VISTA DR SACRAMENTO.CA 95825 FROM MONITORING WELLS TABLE I