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� i • i <br /> CHATEAU q(8021) <O <br /> 0/01 11/08/01 <br /> HOSPITAL 8 <0 5 MW'I 1 <br /> <0 5 (not located to scale) <br /> Benzene 24 Benzene 9 8 Ethy3 <0 5 (-11 88)` <br /> Toluene 3 6 Toluene 18 5 <0 5 <br /> MW9 PROFESSIONAL REALTOR Ethylbenzene 13 Ethylbenzene 46 <50 <br /> 1060 <br /> BUILDING Xylenes 119 Xylenes 132 MTB5 <D 5 MW13 <br /> MTBE TPH-g <br /> i 0 5 MTBE(021) 9<0 5 (not located to scale) <br /> (-12 49)` <br /> Benzene <0 5 Benzene 72 <br /> Toluene 0 78 Benzene 11'000 <br /> Ethylbe <br /> Toluene <br /> <0 5 Totuene 46 Toluene 24,000 <br /> Xylenes 191 Ethylbenzene 46 Ethylbenzene 4,200 MW10 <br /> TPH-g 270 Xylenes 697 Xylenes 21,400 ROS IE LANE (-11 82) <br /> MTBE(8021) 36 TPH-g 4,600 TPH-g 210,000 <br /> MTBE(8260) 40 MTBE(8021) <2 5 MTBE(8021) <50 <br /> 11381 AL <br /> 8 <br /> PSVT UVB-MW2 V3 RW4 <br /> MW12 <br /> MW4 (-1100) UVB (shallow) (-1162) (-1172) (-1110)' <br /> (-1078) LPH 0 01 4 ♦ UVB-MW1(deep)(-1145)• <br /> •P1 V1 SW2 MW6(-11 27) Benzene <2 5 <br /> (NM) M _ (-11 15) (NM) I Toluene <2 5 <br /> (-10 32)`I- SW7 i p PSV2 Benzene 970 Ethylbenzene <2 5 <br /> I V4 (NM+ I Toluene 760 Xylenes <2 5 <br /> IW1 (11 05} I V2 Ethylbenzene 440 TPH-g 270 <br /> (-10 71) I FORMER lI(-11 13} Xylenes 1,200 MTBE(8021) <2 5 0 30 60 <br /> • 2 TANK r1 MW3 RW1 ' TPH-g 8,400 <br /> W <br /> (NM) I_FIELD r_^ -1101�_11 15 MTBE(8021) <2 51 <br /> Scale(feet) <br /> n r! r� I Benzene 4,800 LEGEND <br /> Z MW71 t 11 I Toluene 25,000 <br /> twi (-9 97)`� j I FORMER Ethylbenzene 6,00D GROUNDWATER MONITORING WELL <br /> w_ (-10 29) Q l-1 t,l I STATION MW5 Xylenes 2$,800 • PIEZOMETER <br /> N MW$ MW1 FP MPR I BUILDING �(-10 ) ; TPH-g 94.00 ♦ VAPOR EXTRACTION WELL I <br /> I MTBE(8021) <120 I <br /> x (-10 50) ISLANDS j t--I I RECOVERY WELL <br /> LPH 0 01 ft O PERMANENT SOIL VAPOR MONITORING WELL' <br /> LU Benzene 0 52 + AIR SPARGING WELL <br /> ' FORMER Toluene <0 5 Ilk INJECTION WELL <br /> __—_ _ ---------_ _—_-� USED Ethylbenzene <0 5 1050 Groundwater Elevation ft ms! <br /> p OIL TANK Xylenes 13 <br /> ( } ( ) <br /> Z TPH-g <50 ` Not Used to Determine Gradient <br /> Toluene <2 5 MTBE(8021) <0 5 (NM) Not Measured <br /> Groundwater Ethylbenzene <2 5 TPH-g Total Petroleum Hydrocarbons as Gasoline <br /> s GwXylenes <2 5 MTBE Math t Bu Ether <br /> Flaw Direction TPH-g <250 LPH Liquid Phase Hydrocarbons(feet) <br /> Gradient = 0 004 MTBE(8421) <2 5 Analytical results in micrograms per liter (ug/t) <br /> U <br /> SITE MAP SHOWING GROUNDWATER ELEVATIONS AND ANALYTICAL RESULTS FIGURE <br /> ETICFORMER EXXON RS 7-3942 <br /> W 4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA 1 <br /> Engmeenng,Inc 20 SEPTEMBER 2001 <br /> 1 <br /> l <br />