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i <br /> • • <br /> r + <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> Quik Stop No 039 <br /> I <br /> 2285 Fremont Street, Stockton, California <br /> total TQC GW <br /> Well TPHm TPI-Ig B T E X MTBE RIPE ETRE TAME TBA meth eth DCA DBA Pb DTW elev elev <br /> Number Date (uglL) (uglL) (uglL) (uglL) (uglL) (uglL) (uglL)(uglL)(uglL) (ug/L) (ug/L) (uglL) (uglL) (uglL) (u IL) (uglL) (feet) (feet rnsl) (feet msl) Comments <br /> MW-3 12/15/99 na 360 <0 50 <0 50 <0 50 <0 50 <5 0 na na na na na na na 4408 2038 -2370 <br /> screened 05119100 na 710 <0 50 <0 50 <0 50 <0 50 <5 0 na na na na na na na na na 4073 2035 no comment <br /> interval 08/31/00 na 480 <0 50 <0 50 <0 50 <0 50 <50 na na na na na na na na na 4438 2400 no comment <br /> 40'-60' 11/02/00 na 310 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 26 <50 <5 0 160 <0 50 na 4483 2040 2443 no odor/no sheen <br /> 03/26/01 na 270 <0 50 2 1 <0 50 54 <0 50 <0 50 <0 50 <0 50 23 na na na na na 4294 -2254 no odor/no sheen <br /> 06/21/01 na 310 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 26 <50 <50 na na na 4424 -2384 no odor/no sheen <br /> 09/17/01 na 210 <0 50 1 5 <0 50 <0 50 <5 0 <5 0 na na na na na na na na 4749 -2709 no odor/no sheen <br /> 11/29/01 na 130 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 15 <50 <5 0 na na na 4755 -2715 no odorino sheen <br /> 02/18/02 <100 130 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 89 <50 <5 0 150 <0 50 68 4622 -2582 no odor/no sheen <br /> 05102102 <100 150 <0 50 052 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 15 <50 <50 130 <0 50 na 4602 2013 -2589 no odor/no sheen <br /> 08122102 <100 210 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 19 na na 210 na na 4998 -2985 no odorino sheen <br /> 11/12/02 na 150 <0 50 <0 50 <0 50 1 1 <0 50 <0 50 <0 50 <0 50 12 na na 100 na <0 005 5082 -3069 no odor/no sheen <br /> Notes TPHm=total petroleum hydrocarbons as motor oil MTBE=methyl tert-butyl ether DCA=1 2-dichloroethane <=less than indicated reporting limit <br /> TPHg=total petroleum hydrocarbons as gasoline DIPE=dusopropyl ether DBA=1,2-dibromoethane ns=not sampled <br /> B=benzene ETBE=ethyl tert-butyl ether total Pb=total lead(soluble) nm=not measured <br /> T=toluene TAME=tert-amyl methyl ether DTW=depth to groundwater <br /> E=ethylbenzene TBA=tert-butanol GW=groundwater <br /> X=total xylenes meth=methanol TOC=top of casing <br /> eth=ethanol elev=elevation <br /> msl=mean sea level <br /> 039gmr00 As <br /> 703942 Page 2 of 2 HORIZON ENVIRONMENTAL INC <br />