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TABLE 2 <br /> ANALY771CAL RESULTS GROUNDWATER <br /> 1399 FAST YOSEMITE MANTECA CALIFORNIA <br /> (AI results In parts-pa-Mon) <br /> I <br /> Total Coliform <br /> Ethyl- TPH as Ethylene 1,2-dschicro- and Fecal <br /> Well No Date Benzene Toluene benzene Xylenes Gasoline dtbromrde ethane (MPN/100mi) <br /> cc <br /> MW-1 <br /> 08124J88+ < c < 3 0 800 1 2 --- <br /> 04128/89+ < < < < « <K -- <br /> MW-1A 07106190+ 720 200 140 3800 4,5000 « << -- <br /> 02/01/91 < < c < < << 04 --- <br /> 02/27191 320 29 0 140 71 0 6100 << << --- <br /> 04/23191 38 0 270 130 740 8300 << << -- <br /> MW-1B" 07/22/91 3700 1800 < 11,0000 28,0000 0 6 9 0 <br /> 10/21/91 390 120 78 890 10,000 --- --- — <br /> 01/17/92 310 99 260 11000 12,000 -- -- --- <br /> « <br /> MW-2 04/28189+ 8 4 c 4 0 4 D 200 03 <br /> 06/28/80+ < K < < < « 0 3 — <br /> 02/01/91 < < e c < « « --- <br /> 04/23/91 < < c < < « « — <br /> 07/22/91 5 8 36 < 1300 3200 « <c — <br /> 10/21/91 < < < < < - -- — <br /> 01/17/92 < < < 0 6 < -- -- — <br /> NOTES • = Results from Earth Treatment Systems August 1980 Delta Environmental Consultants Inc April 1989 Nation Groundwater Associates July 1990 <br /> = MW 1B Constructed in June 1991 by over coring MW 1A <br /> < Below detection limits per Tri-Regional Board Staff Recommendation for Preliminary Evaluation and Investigation of Underground Tank <br /> Sties (August 10 1990)Practical Ouantdatton Reporting Lrmrts ifor water) (POL for BTEX-0 5 ppb TPH as gasoline=50 0 ppb) <br /> « = Below the indicated detection limit labeled in analytical laboratory results report(P0L for ethylene drbromtde 0 1 ppb 12 drehioroethane 0 1 ppb) <br /> TPM Total petroleum hydrocarbons <br /> = Not analyzed <br /> MPN/100 ml - Most probable number of colonies per 100 ml <br /> Aegis E—onmentai Inc <br /> March 16 1992 <br />