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ELMWOOD AVE N <br /> EXISTING AND FORMER <br /> UNDERGROUND USED <br /> OIL TANK <br /> 0 20 40 <br /> R <br /> SCALE IN FEET <br /> AUTO <br /> AUTO SERVICE 1 <br /> i SERVICE i <br /> I � <br /> I w <br /> I MW-5 <br /> I I ND<50 MW-7 <br /> ND<0.5 I ND<1.0 1800 I 0 <br /> ND<1.0 ND<1.0 ND<0.5I�ND<_1.0 Z <br /> ND<10 MW-3 ND<1.o I ND<1.0 <br /> MW-4 5900 2400 <br /> ND<50 ND<0.5 ND<1.0 I V) <br /> ND<0.5 ND<1.0 ND<1.0 1 1.1 <br /> ND<1.0 I ND<1.0 17000 I W <br /> ND<1C i- — — - 0- <br /> I FORMER i wl <br /> EXISTING UNDERGROUND UNDERGROUND z <br /> FUEL TANKS I FUEL TANK I �I <br /> FORMER <br /> _ DISPENSER <br /> I- — ISLANDS <br /> I i � <br /> I I <br /> Q I MW-2 <br /> MW-1 1 <br /> L - - - - J 800 = <br /> MW-6 ND<0.5 I ND<1.0 <br /> ND<50 ND<1.0 1 ND<1.0 <br /> ND<0.5 I ND<1.0 700 <br /> ND<1.0 1 ND<1.0 <br /> ND<1 PLANTER <br /> LEGEND COUNTRY CLUB BLVD <br /> -0 GROUNDWATER MONITORING WELL <br /> 0 DESTROYED WELL <br /> TPH-G CONCENTRATION OF CONSTITUENTS <br /> B X IN MICROGRAMS PER LITER FIGURE 3 <br /> MTBE <br /> TPH-G TOTAL PETROLEUM CONCENTRATIONS OF PETROLEUM <br /> HYDROCARBONS AS GASOLINE HYDROCARBONS IN GROUNDWATER <br /> B BENZENE <br /> T TOLUENE JULY 7, 1998 <br /> E ETHYLBENZENE BP OIL SERVICE STATION NO. 11192 4 <br /> X TOTAL XYLENES 1403 COUNTRY CLUB BOULEVARD <br /> MTBE METHYL TERT BUTYL ETHER STOCKTON, CALIFORNIA a <br /> ND NOT DETECTED ABOVE REPORTED PROJECT NO. 10-037 <br /> DETECTION LIMIT <br /> CALCULATED GROUNDWATER nALISTO ENGINEERING GROUP } <br /> GRADIENT DIRECTION AND <br /> 0.004 WALNUT CREEK, CALIFCRNIA 8 <br /> MAGNITUDE IN FOOT PER FOOT - <br />