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I <br /> MW11 <br /> (not located to scale) <br /> Groundwater I (NM) <br /> GW Flow Direction Benzene 856 Benzene <50 I <br /> Gradient = 0 004 Benzene 3,160 Toluene 27 Toluene 380 I <br /> Toluene 12,000 Ethylbenzene 143 Ethylbenzene 1 310 <br /> I 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 04) <br /> Xylenes 694 MTBE(8021) <50 MW13 <br /> TPH-g 2,200 <br /> MTBE (8021) 155 <br /> MTBE(8260) <0 5 <br /> Benzene 840 V <br /> Toluene 22,900 GNPt P�- <br /> Ethylbenzene 3,280 �°5p <br /> Xylenes 16,500 <br /> TPH-g 96,200 1. Vva <br /> MTBE(8021)MTBE(8260) <�20 Qc'�MPFLI� <br /> 00 FZ <br /> Benzene 11 MW12 <br /> Toluene <0 5SS1°G� MW�10 (NM) <br /> Ethylbenzene <0 5 '??-0 Benzene <br /> I Xylenes <0 5 S Benzene 115 <br /> MW9 TPH-g 700 RW4 Toluene 450 <br /> (-1086) MTBE (8021) <0 5 (-1228) Ethylbenzene 195 <br /> V3 Xylenes1891 <br /> (-1210) TPH-g 1,750y <br /> Benzene 1 8 PSV1 uV� MW2 (shallow) (-11 80) MTBE(8021) 20'2 <br /> MTBE (8260) <5 <br /> Toluene <0 5 (-11 36) <br /> I Ethylbenzene <0 5 RW2 (NM)4. VB-MW1 (deep)(-11 82) <br /> Benzene 11,600 <br /> Xylenes <0 5 SW2 A MW6 (Dry) Toluene 27,500 <br /> TPH-9 301 _ <br /> _ �"� —' � �� Q\PSV2 Benzene 6,640 Ethylbenzene 3,600 LEGEND <br /> MTBE (8021) 826 R MsR V1 - Toluene 16300, Xylenes 17,400 <br /> MW <br /> � � <br /> MTBE (8260) 92 0 ti F ptAy, (A 1 62� Ethylbenzene 2,740 TPH-9 122,000 GROUNDWATER MONITORING WELL <br /> 4 ti <br /> (-11 16) '1 0-0 �ti V2 Xyienes 13,600 MTBE(8021) 460 PIEZOMETER <br /> P1 5ti 11 33 TPH-9 85,000 MTBE(8260) <100 <br /> I �(NM) MW2 �� SW1-- ( % RW1 MTBE(8021) 780 ♦ VAPOR EXTRACTION WELL <br /> 1 (-11 19) V4.—(NM)~ �+ (A1 59)1 MTBE(8260) <100 RECOVERY WELL <br /> (- 1 36) MW3 ti (-11 41)<< <br /> Benzene 115 Z 1 IW1 (-11 07) ,, �� (-1146) +5 MW51 Benzene 130 O PERMANENT 50lL VAPOR MONITORING WELL <br /> Toluene 0 8 �, �5 �� ER �ti Toluene 910 ♦ AIR SPARGING WELL <br /> Ethylbenzene 8 1 �� 1 •P2� �� �� �� F°RMpN + ti Ethylbenzene 228 INJECTION WELL <br /> Xylenes 12 = (NM)+ti ' �� S�P���NG �t5—~ + Xylenes 255 <br /> TPH-g 747 -b 1 `� �� ER '� ��U� 'k�~Y�` TPH-g 2,400 (- 1 59) Groundwater Elevation (feet) <br /> I MTBE(8021) <0 5 MW7 'f°RM P y __ F°Rtt'°�1. MTBE(8021) 240 (NM) Not Measured <br /> (P (-10 93) puM ps �SSp. MTBE(8260) <5 <br /> 11 PH-g Total Petroleum Hydrocarbons as Gasoline <br /> N O t� W1 Toluene 2 1 TBE. Methyl t-Butyl Ether <br /> MW8 <br /> I �" Benzene 2 8 Benzene <0 5 <br /> N o'Cn� (NM) � 'M 88) Toluene <0 5 <br /> '� L A s=c+ <br /> V\. <br /> 1 Ethylbenzene 1 6 <br /> 0 30 60 � Ethylbenzene <0 5 Analytical results in micrograms per liter(ug/L) <br /> �n r - Xylenes 4 7 Xylenes <0 5 <br /> I 2 m m TPH-g 323 TPH-g <50 <br /> Scale(feet) MTBE (8021) <0 5 MTBE (8021) <0 5 <br /> F o <br /> SITE MAP SHOWING GROUNDWATER ELEVATIONS AND ANALYTICAL RESULTS FIGURE <br /> FORMER EXXON RS 7-3942 <br /> <*>pETICE4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> I18 DECEMBER 2002 <br />