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r <br /> i' <br /> Benzene 185 Benzene 720 MW11 <br /> Groundwater <br /> Toluene 0 7 Toluene 117 (not located to scale) <br /> GW Flow Direction Ethylbenzene 1 1 Ethylbenzene 548 (NM) <br /> Gradren t = 0 004 Xylenes 1 4 Xylenes 2,000 <br /> TPH-g 108 TPH-g 8,300 <br /> MTBE(8021) 1 3 MTBE (8021) 100 <br /> MTBE(8260) <0 5 MTBE (8260) <2 5 <br /> Benzene 360 Benzene 3 650 (NM) <br /> Toluene 144 Toluene 9,870 MW13 <br /> Ethylbenzene 106 Ethylbenzene 2,080 <br /> Xylenes 745 Xylenes 9,260 <br /> TPH-g 3,830 TPH-g 62,100 <br /> MTBE (8021) 66 0 MTBE (8021) 60 0 <br /> MTBE (8260) <0 5 11 MTBE (8260) <25 No <br /> Benzene 900 H05p,�P� <br /> Toluene 19,600 NE <br />' Ethylbenzene 3,420 <br /> Xylenes <br /> TPH g 99,400 ROS�MP��E <br /> MTBE (8021) 100 R�PG�pRr <br />' MTBE(8260) <50 MW12 <br /> p�pFE4�N P� Sheen n(NM)a (NM) i <br /> �u <br />' MW9 RW4 Benzene 108 <br /> (NM) (-1127) Toluene 470 <br /> Sheen V3 (-11 06) Ethylbenzene 230 <br /> (-1081) Benzene 8 440 Xylenes 246 <br /> PSV1 UVB-MW2 (shallow) Toluene 19,100 TPH-g 2 520 j <br /> �4�VEN Benzene 2 9 __ Ethylbenzene 2 620 MTBE (8021) 190 <br /> Toluene <0 5 (-1047) UVB <br /> UVB-MW1 (deep) -' 78) Xylenes 13 600 MTBE (8260) <0 5 <br />' Ethylbenzene <0 5 RW2 i (NM) - TPH-g 108,000 <br /> Xylenes �<0 5 SW2 MW6 (-10 89) Sheen MTBE (8021) <100 <br /> TPH-g 424 * aPSV2 <br /> MTBE (8021) 778 �'` — R�,1ER_ V1 \ ; LEGEND <br /> MTBE (8260) 40' 6 MW4 -10 29 �� O ASK (-10 57) LPH 0 01 Benzene <0 5 GROUNDWATER MONITORING WELL( ) �So Benzene 5,410 Toluene <0 5 <br /> V2 Toluene 12 200 Ethylbenzene <0 5 • PIEZOMETER <br /> P1 �` y 10 61 Ethylbenzene 2,310 Xylenes <05 l <br /> (NM) MW2 ti 5W1 _�(j �) RW1 ', y TPH-g <50 I A VAPOR EXTRACTION WELL <br />' (-1034) \V __(NM)~ ``; (-10 60) Xylenes 9520 1 ( (-10 39) 'ti MW3 �� (-1048) TPH-g 73 700 MTBE (8021) <0 5 RECOVERY WELL <br /> (-1037) ) MTBE (8021) 700 p PERMANENT SOIL VAPOR MONITORING WELL <br /> Benzene 11 1 Z IW1 10 21 ti � MW6 <br /> (- 4 ) �'� 1` M0R \1 MTBE (8260) <25 + AIR SPARGING WELL <br />' Toluene <5 Q �J P2�' � � <br /> Ethylbenzene 107 = 1 (NM} �` 5, ��y �ti FO AZ\O G � _ —�+ Benzene 755 INJECTION WELL <br /> Xylenes 13 <br /> TPH-g 704 0 1 '��i ER �` �U�G ��'� ER Toluene 250 (-1021) Groundwater Elevation (feet) <br /> MTBE 8021 8 5 m MW7 FARM +Y DRM Ethylbenzene 120 <br /> MTBE (8260) <5 0 �(P (NM) PUMt1D5 FUSS Nye Xylenes 95 0 (NM) Not Measured <br /> _ 1ST P 0-�A TPH-g 1,640 PH-g Total Petroleum Hydrocarbons as Gasoline <br /> Z MTBE (8021) 235 TBE Methyl t-Butyl Ether <br /> N MW6 O �1 W1 -'� J Benzene <0 5 MTBE (8260) <0 5 LPH Liquid-phase Hydrocarbons <br />' N�y (NM) �L (-10 11) _ �" Toluene <05 <br /> p 30 60 7-P r m � �" Ethylbenzene <0 5 Analytical results in micrograms per filar(uglL) <br /> Z <br /> 02 m --�J Xylenes <0 5 <br /> Scale(feet) TPH-g <50 <br /> . � MTBE(8021) <0 5 <br />' o <br /> FIGURE <br /> SITE MAP SHOWING GROUNDWATER ELEVATIONS AND ANALYTICAL RESULTS <br /> FORMER EXXON RS 7-3942 <br /> IC <br /> W ET4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> Engineering,Inc 11 JUNE 2002 <br /> w <br />