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N <br /> i <br /> o <br /> PARKING Q <br /> O <br /> fx <br /> W <br /> —— z 0 s0 120 <br /> J <br /> Mw-1 ep OIL SCALE IN FEET <br /> SERVICE STATION z <br /> of <br /> LEGEND <br /> PARKING i MW-3 300AMW--S i O MW-7 � GROUNDWATER MONITORING WELL <br /> 1 770 N'D170 0 JACK IN TPH-G CONCENTRATION OF CONSTITUENTS <br /> THE eox IN MICROGRAMS PER LITER, <br /> 43 MW-2 e T <br /> MW-4 180 E x EXCEPT DISSOLVED OXYGEN, <br /> 5000 ND<O s ND<1 0 Do WHICH IS IN PARTS PER MILLION <br /> 173 I ND<5 0 ND<1 0 ND<1 0 <br /> 775 3 7 767.o 4 2 AMW--3 TPH-G TOTAL PETROLEUM <br /> AMW-6 HYDROCARBONS AS GASOLINE <br /> e BENZENE <br /> AMW-2 AMW--4 MW-5 T TOLUENE <br /> E ETHYLBENZENE <br /> TRACY BOULEVARD x TOTAL XYLENES <br /> V-fcp DO DISSOLVED OXYGEN <br /> ND NOT DETECTED ABOVE REPORTED <br /> DETECTION LIMIT <br /> MW--6 MW-8 CALCULATED GROUNDWATER <br /> 0 008 GRADIENT DIRECTION AND <br /> MAGNITUDE IN FOOT PER FOOT <br /> EXXON FORMER NOT SAMPLED <br /> CHEVRON <br /> FIGURE 3 <br /> CONCENTRATIONS OF PETROLEUM <br /> HYDROCARBONS IN GROUNDWATER <br /> AMw-1 <br /> APRIL 16, 1997 <br /> BP OIL SERVICE STATION NO. 11194 <br /> 12375 TRACY BOULEVARD s <br /> TRACY. CALIFORNIA $ <br /> PROJECT NO. 10--085 <br /> Aw <br /> ALISTO ENGINEERING GROUP WALNUT CREEK CALIFORNIA <br /> I <br /> -- - I <br />