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N <br /> ARCO <br /> SERVICE <br /> STATION <br /> Q 20 40 <br /> SCALE IN FEET <br /> Mw-7 <br /> INACCESSIBLE <br /> LOUISE AVENUE <br /> Mz�oo — <br /> 2.6 L 1 <br /> 220 75 <br /> NOT ANALYZED <br /> 8.0 <br /> l � <br /> PLANTER ` <br /> UNDERGROUND <br /> STORAGE TANKS / �a <br /> J(J/J mw- <br /> 90 4 <br /> 0<5� ( Mw_3 ND< l I ND<1 <br /> ND<0.5 ND<1 1600 NOT ANALYDZED <br /> 3.2 1114"L <br /> ND<1 ND<1 rL 8.2 <br /> 270 227 <br /> 9.6 o Z NOT ANALYZED <br /> 0 8.0 <br /> MW-2 <br /> ~ UNDERGROUND 90 <br /> USED OIL TANK glLANDS 2 1 ND<1 <br /> 2 ND<1 <br /> (� NOT A8N3LYZE <br /> M Mw-1 o <br /> ND<50 <br /> ND<0.5 ND<1 0 <br /> DIRT LOT ND<1 ND<1 <br /> NOT ANALYZED <br /> 8.5 <br /> IES <br /> 4� GROUNDWATER MONITORING WELL <br /> TPH-G CONCENTRATION OF CONSTITUENTS <br /> B T IN MICROGRAMS PER LITER, <br /> E x EXCEPT DISSOLVED OXYGEN, <br /> T DOD WHICH IS IN PARTS PER MILLION FIGURE 3 <br /> TPH-G TOTAL PETROLEUM <br /> HYDROCARBONS AS GASOLINE CONCENTRATIONS OF PETROLEUM- <br /> E3 BENZENE HYDROCARBONS IN GROUNDWATER <br /> T TOLUENE <br /> E ETHYLBENZENE FEBRUARY 28, 1996 <br /> x TOTAL XYLENES <br /> TOTAL PETROLEUM BP OIL SERVICE STATION NO. 11195 <br /> TPH-D HYDROCARBONS AS -DIESEL 16500 SOUTH INTERSTATE 1-5 <br /> DO DISSOLVED OXYGEN LATHROP, CALIFORNIA <br /> ND NOT DETECTED ABOVE REPORTED PROJECT NO. 10-151 <br /> DETECTION LIMIT <br /> CALCULATED GROUNDWATER Y <br /> O.00i GRADIENT DIRECTION AND �ALISTO ENGINEERING GROUP q <br /> MAGNITUDE IN FOOT PER FOOT 1� <br /> WALNUT CREEK. CALIFORNIA <br /> S <br />