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GROUNDWATER ELEVATIONS AND WATER SAMPLE ANALYSIS <br /> Olivarez Property <br /> 300 South California Street <br /> Stockton, CA <br /> Updated: 12/16/99 <br /> SAMPLE ANALYSIS RESULTS <br /> BTEX BY EPA METHOD 602 &TPHg BY EPA METHOD 503018015(M) <br /> WELL SAMPLE DTW TOCE GWE B T E X TPHg <br /> I. D. DATE IN FT. IN FT. IN FT. ppb ppb ppb ppb ppb <br /> -MW-1 R- 24-Nov-1999 29.71-- - - 9710- -. 9810 - 1550 9850 152000 <br /> MW-1 24-Nov-1999 30.21- 98.02 67.81 n ; <br /> MW-1R July 19, 1999 =A. 28.59 - 5750 11700 1310 7190 67.60 <br /> MW-1 July 19, 1999 29.06 98.02 68.96 5680_ .. 12900 - 1360 6870 71100 <br /> MW-1 December 29, 1998 30.56 98.02 67.46 29800 30900 3110 16200 197000 <br /> MW-1 January24, 1997 38.14 98.02 59.88 15400 27600 3440 16800 162000 <br /> MW-1 July 3, 1996 39.93 98.02 58.09 12300 23600 6980 33500 460000 <br /> MW-1* May 1, 1995 47.26 98.02 50.76 7600 6000 2700 16000 64000 <br /> MW-2R 24-Nov-1999 29.63 533 3960 2860 18500 83300 <br /> MW-2 24-Nov-1999 30 98.03 68.03 <br /> MW-2R July 19, 1999 28.51 928 3830 1850 12900 70400 <br /> MW-2 July 19i 1999 28.91 98.03 69.12 3870 8790 2150 12500 71100 <br /> MW-2 December 29, 1998 30.38 98.03 67.65 2370 6600 4470 23300 9990 <br /> MW-2 January 24, 1997 38.11 98.03 59.92 14000 30000 2600 15200 143000 <br /> MW-2 July 3, 1996 39.79 98.03 58.24 16200 31500 2910 18300 199000 <br /> MW-2' May 1, 1995 47.14 98.03 50.89 18000 29000 3300 21000 120000 <br /> MW-3R 24-Nov-1999 29.09 0.3 ND 0.7 175 <br /> MW-3 24-Nov-1999 29.35 97.4 68.05 <br /> 3R July 19,-1999 27-97 - 24, 0.7 ND 1 227 <br /> W-3 July 19, 1999 28.19 97.4 69.21 7 ND ND 1 ND <br /> MW-3 December 29, 1998 29.65 97.4 67.75 9 ND 0.4 0.7 80 <br /> MW-3 January 24, 1997 38.2 97.4 59.2 238 314 28 280 2340 <br /> MW-3 July 3, 1996 38.91 97.4 58.49 430 7 X1.5 115 1920 <br /> MW-3* May 1, 1995 45.87 97.4 51.53 1300 36 6 450 5100 <br /> * Denotes sample results from Clearwater Report <br /> ANALYSIS FOR OXYGENATES BY GC/MS (8260M) <br /> WELL METHYL-T- DI-ISOPROPYL ETHYL T-BUTYL TERT-BUTYL T-AMYL METHYL <br /> I.D. DATE SAMPLED BUTYL ETHER ETHER EHTER ALCOHOL ETHER <br /> MW-1R 24-Nov-1999 ND ND ND ND ND <br /> MW-1R July 19, 1999.. 75 - ND ND 180 130 ' <br /> MW-1 ;July 19, 1999 43', ND ND ND ND <br /> MW-1 December 29, 1998 330 ND ND 480 ND = <br /> MW-2R 24-Nov-1999 ND ND ND ND ND <br /> MW-2R July 19, 1999 13 ND ND ND - ND <br /> MW-2. _July 19, 1999 83 ND ND ND ND ; <br /> MW-2 December 29, 1998 ND ND ND ND ND <br /> I <br /> MW-3R 24-Nov-1999 ND ND ND ND ND r <br /> MW-3R July 19, 1999 ND ND ND ND ND <br /> MW-3 July 19, 1999 ND ND ND ND ND <br /> MW-3 December 29, 1998 ND ND ND ND ND <br />