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�0 MW-7 <br /> ND<0.5 ND <br /> 3 ND<0 <br /> 0 20 40 <br /> .5ND<0.5 <br /> �i <br /> SCALE IN FEET <br /> ,� ' LOUISE AVENUE <br /> M �� <br /> 5 MW-4 <br /> f� ale <br /> '5 <br /> 16000 -- <br /> ND<12 ND<12 <br /> a 1000 1300 <br /> MW-3 PLANTER ` <br /> 38000 <br /> 1 <br /> UNDERGROUND--' ,Il 11 / 1770 1 34 <br /> 7 0 3300 <br /> STORAGE TANKS { I� I <br /> J J MW-6 <br /> i 400 <br /> MW-5 3.4 N D<0.5 <br /> r' �] ND<50 z� ND<0.5ND<0.5 <br /> ND<0.5 ND<0.5 oo _ <br /> ND<0.5 ND<0� �m M S00 <br /> i ~T UNDERGROUND 15PEN5ER �7 ND<2.5 <br /> USED OIL TANK <br /> pi <br /> SLANDS 290 250 <br /> Z OMW-1 <br /> ND<50 <br /> ND<0.5 ND<0.5 <br /> ND<0.5 ND<0.5 �f <br /> DIRT LOT <br /> y <br /> rt. <br /> N <br /> $ GROUNDWATER MONITORING WELL <br /> i' <br /> TPH—G <br /> B T CONCENTRATION OF CONSTITUENTS FIGURE 5 <br /> E X <br /> IN PARTS PER BILLION <br /> € CONCENTRATIONS OF PETROLEUM <br /> TPH—G TOTAL PETROLEUM HYDROCARBONS IN GROUNDWATER <br /> HYDROCARBONS AS GASOLINE <br /> B BENZENE SEPTEMBER 15, 1993 <br /> T TOLUENE BP OIL SERVICE STATION NO. 11195 <br /> E ETHYLBENZl=NE 16500 SOUTH INTERSTATE 1-5 g <br /> X TOTAL XYLENES LATHROP, CALIFORNIA <br /> ND NOT DETECTED ABOVE REPORTED PROJECT NO. 10-151 <br /> DETECTION LIMIT <br /> CALCULATED GROUNDWATER <br /> 4= GRADIENT DIRECTION AND �ALISTO ENGINEERING GROUP S <br /> MAGNITUDE IN FOOT PER FOOT /�` WALNUT CREEK, CALIFORNIA <br /> I :s — <br />