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MW11 <br /> Groundwater (not located to scale) <br /> GW Flow Direction (NM) <br /> Gradient = 0 004 Benzene 856 Benzene <50 <br /> Benzene 3,160 Toluene 27 Toluene 380 <br /> Toluene 12,000 Ethylbenzene 143 Ethylbenzene 1,310 <br /> Benzene 540 Ethylbenzene 2,160 Xylenes 179 Xylenes 5 260 <br /> Toluene 208 Xylenes 10,400 TPH-g 878 TPH-g 17,000 <br /> Ethylbenzene 134 TPH-g 56,200 MTBE(8021) <0 5 MTBE(8021) <50 (-13 D4) <br /> Xylenes 694 MTBE(8021) <50 MW13 <br />' TPH-g 2,200 <br /> MTBE(8021) 15 5 <br /> MTBE(8260) <05 <br />' Benzene 840 <br /> Toluene 22,900 <br /> g <br /> Ethylbenzene 3,280 GN P <br /> Xylenes 16,500 HO <br />' TPH-g 96,200MTBE(8021) <br /> 20 <br /> MTBE(8260) <�00 Ar Ar <br /> RpS�MPR,`c I <br />' Benzene 11 MW12 <br /> Toluene <0 5 <br /> Ethylbenzene <05 PRO ELDN P4 MNM ( ) <br /> NM <br /> Xylenes <0 5 Benzene 11 <br /> MWg TPH-g 700 RW4 Toluene 4 0 <br /> (-1086) MTBE (8021) <0 5 (-1228) Ethylbenzene 19 <br /> V3 Xylenes 18 <br /> (-1210) TPH-g 1,750 <br /> Benzene 1 8 PSV1 UVB-MW2 (shallow) (-11 80) MTBE (8021) 2MTBE (8 60) <Y 2 <br /> Toluene <0 5 (-11 36) ,UVB I555 <br />' Ethylbenzene <05 RW2 i (NM) UVB-MW1 (deep)(-11 82) <br /> Xylenes <0 5 SW2 MW5 (Dry) Benzene 11,600 <br /> TPH-g 301 __ k Toluene 27,500 <br /> MTBE (8021) 826 {_ �M�R~�V1�� O�IPSV2 Benzene 6,640 Ethylbenzene 3,600 LEGEND <br />' MTBE(8260) 92 4F p,NK (-11 62') �Toluene 16,300 Xylenes 17,400 <br /> MW 4 �1 1E�p Ethylbenzene 2,740 TPH-g 122,000 GROUNDWATER MONITORING WELL <br /> (-11 16) Xylenes 13,600 MTBE (8021) 460 • PIEZOMETER <br /> • P1 5 SW _5+(-V2 11 33) M I TPH-g 85,000 MTBE (8260) <100 <br /> (NM) MW2 RWMTBE (8021) 780 VAPOR EXTRACTION WELL <br /> 1 (-11 19) V4 -(NM)_ (-11 59)1 MTBE (8260) <100 <br /> (- 1 36) MW3 �� (-11 41), RECOVERY WELL <br /> Benzene 115 Z 1 IW1 (-11 07) �_ `� (-1146) �� MW5\ Benzene 130 O PERMANENT SOIL VAPOR MONITORING WELL <br /> Toluene 08 �y �, 1 'ti �� ER �� Toluene 91 0 + AIR SPARGING WELL <br />' Ethylbenzene 81 -► 1 • P2� '� t, FORM N Ethylbenzene 228 <br /> Xylenes 1 2 2 (NM)\ �� ti SG Y INJECTION WELL <br /> Y ti �� � �N �� � � Xylenes 255 <br /> TPH-g 747 M 1 t�J4 RMER �vUD �'~' TPH-g 2,400 �_ 1 59) Groundwater Elevation(feet) <br />' MTBE(8021) <15 �N M 0 93 F PUM¢ �- l _ ¢O .DSL MTBE (8021) <5 0 (NM) Not Measured <br /> = <br /> \(-10 <br /> ) 15GANOS U so- MTBE (8260) <br /> PH-g Total Petroleum Hydrocarbons as Gasoline <br /> N MWB ZG) ATBE Methyl t-Butyl Ether <br />' MW1 _ Benzene 28 Benzene <0 5 <br /> (,a�cr cn= (NM} �� (110 88) �- Toluene 21 Toluene <0 5 <br /> 0 30 60 7,��A 2 Ethylbenzene 1 6 Ethylbenzene <0 5 Analytical results in micrograms per liter(ug/L) <br /> Xylenes 4 7 Xylenes <0 5 <br />' M <br /> Scale(feet) Z TPH-g 323 TPH-g <50 <br /> MTBE (8021) <0 5 MTBE (8021) <0 5 <br /> • n <br /> o � <br />' SITE MAP SHOWING GROUNDWATER ELEVATIONS AND ANALYTICAL RESULTS FIGURE <br /> ' FORMER EXXON RS 7-3942 <br /> ETEC <br /> ENGINEERING 4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br />' 18 DECEMBER 2002 <br />