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c• <br /> GROUNDWATER ELEVATIONS AND WATER SAMPLE ANALYSIS <br /> Oliivarez Property <br /> 300 South California Street <br /> Stockton, CA <br /> Updated: 01/18/99 <br /> SAMPLE ANALYSIS RESULTS <br /> BTEX BY EPA METHOD 602 &TPHg BY EPA METHOD 503018015(M) <br /> WELL SAMPLE DTW TOCE GWE TPHg B T E X <br /> I. D. DATE IN FT. IN FT. IN FT. ppb ppb ppb ppb ppb <br /> MW-1 December 29, 1998 30.56 98.02 67.46 197000 29800 30900 3110 16200 <br /> MW-1 January 24, 1997 38.14 98.02 59.88 162000 15400 27600 3440 16800 <br /> MW-1 July 3, 1996 39.93 98.02 58.09 460000 12300 23600 6980 33500 <br /> MW-1 May 1, 1995 47.26 98.02 50.76 64000 7600 6000 2700 16000 <br /> MW-2 December 29, 1998 30.38 98.03 67.65 9990 2370 6600 4470 23300 <br /> MW-2 January 24, 1997 38.11 98.03 59.92 143000 14000 30000 2600 15200 <br /> MW-2 July 3, 1996 39.79 98.03 58.24 199000 16200 31500 2910 18300 <br /> MW-2 May 1, 1995 47.14 98.03 50.89 120000 18000 29000 3300 21000 <br /> MW-3 December 29, 1998 29.65 97.4 67.75 80 9 ND 0.4 0.7 <br /> MW-3 January 24, 1997 38.2 97.4 59.2 2340 238 314 28 280 <br /> MW-3 July 3, 1996 38.91 97.4 58.49 1920 430 7 <1.5 115 <br /> MW-3 May 1, 1995 45.87 97.4 51.53 5100 1300 36 6 450 <br /> ANALYSIS FOR OXYGENATES BY GC/MS (8260M) <br /> WELL METHYL-T- DHSOPROPYL ETHYL T-BUTYL T-AMYL METHYL TERT-BUTYL <br /> 4 D. DATE SAMPLED BUTYL ETHER ETHER EHTER ETHER ALCOHOL <br /> W-1 December 29, 1998 330 NO NO ND 480 <br /> MW-2 December 29, 1998 ND NO NO ND ND <br /> MW-3 December 29, 1998 ND NO NO ND ND <br />