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I <br /> .4; <br /> cARCO AM/PM <br /> SERVICE STATION ' <br /> 1 <br /> PRIVATE ROAD <br /> 0 30 60 <br /> r <br /> SCALE IN FEET <br /> EGEND <br /> MW-3 GROUNDWATER MONITORING WELL <br /> ND<50 TPH_G CONCENTRATION OF CONSTITUENTS <br /> MW-4 ND<0.5 ND<1 B T <br /> ND<50 ND<1 ND<1 1N MICROGRAMS PER LITER <br /> ND<0.5 ND<1 SERVICE w W E X <br /> ND<1 ND<1 STATION g Z TPH—G TOTAL PETROLEUM <br /> I BUILDING a HYDROCARBONS AS GASOLINE <br /> I I MW-7 <br /> B BENZENE <br /> DISPENSER T TOLUENE <br /> L J ND<50 <br /> ISLANDS I 2.0 IND<l E ETHYLBENZENE <br /> ND<1ND<1 X TOTAL XYLENES <br /> UNDERGROUND Q <br /> USED OIL TANK = NOT DETECTED ABOVE REPORTED <br /> NO DETECTION LIMIT <br /> a CALCULATED GROUNDWATER <br /> —, 3 O.g04 GRADIENT DIRECTION AND <br /> OMW-2 > MAGNITUDE IN FOOT PER FOOT <br /> 4 1 680 MW--5 4?� <br /> LjQL 4 45003 <br /> 4 4 <br /> —36112 6 1 11 <br /> I� 4 <br /> MW-1 � L <br /> ND<50 UNDERGROUND <br /> ND<O.5j NO<1 FUEL TANKS <br /> ND<1I ND<1 <br /> pANTER DRIVEWAY <br /> DR1VE'NA� <br /> TRANSFORMER IGURE 3 <br /> ONCENTRAOSIOF PETROLEUM <br /> N <br /> DROCARBNSGROUNDWATER <br /> �{Y <br /> APRIL 22, 1996 <br /> SP OIL SERVICE STATION NO. 11193 R <br /> =3202 WEST HAMMER LANE <br /> rn� ND <br /> STOCKTON, CALIFORNIA $ <br /> PROJECT NO. 10-13fi <br /> i <br /> �AUST0 ENGINEERINGGROUP <br /> WALNUT CREEK. CALIFORNIA <br />