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i
<br /> Benzene 3,390 Ar
<br />' Toluene 9,340 MW11
<br /> • N Ethylbenzene 2,550 (not located to scale)
<br /> Groundwater Xylenes 10,300 Benzene 31 9 Benzene 750 Benzene 4 10 (NM)
<br /> 0 25 50 GW Flow Direction TPH-g 58,800 Toluene 20 Toluene 485 Toluene <0 5
<br /> Gradient = 0 005 MTBE (8021) 105 Ethylbenzene 155 Ethylbenzene 2,160 Ethylbenzene <0 5
<br /> MTBE (8260) <5 Xylenes 180 Xylenes 8,640 Xylenes 22
<br /> Scale(feet) TPH-g 2,060 TPH-g 31,000 TPH-g 594
<br />' Benzene 108 MTBE (8021) 377 MTBE (8021) 95 0 MTBE (8021) 11 0
<br /> Toluene 246 MTBE (8260) <0 5 MTBE (8260) <5 MTBE (8260) <0 5 (L14 10)
<br /> Ethylbenzene 179 MW 13
<br /> Xylenes 932
<br />' TPH-g 3,140 Benzene 2,210
<br /> MTBE (8021) 138 Toluene 1,810
<br /> MTBE (8260) <0 5 Ethylbenzene 534 Benzene 83 0
<br />'
<br /> Benzene 590 Xylenes 1,690 Toluene 29 0
<br /> venzen6 Benzene c0 5
<br /> TPH-g148
<br /> Toluene 17,800 MTBE (8 21) 17 102 GN SP,�L Ethyl Xylenes 115 Toluene <0 5
<br /> Ethylbenzene 3,330 MTBE (8260) <5 No TPH-g 1,740 Ethylbenzene <0 5
<br /> 1 Xylenes 14,900 PNE MTBE (8021) 19 7 Xylenes <0 5
<br /> TPH-g 84,500 RIE �" MTBE (826Q) <0 5 TPH-g <50
<br /> MTBE (8260) 1<5Ros�eflP MTBE (8421) c0 5
<br />� EP .�
<br /> Benzene 260
<br /> Ethylbenzene <0 5 pRo Epp (NMP (-13 39 M 1)
<br />' Xylenes <0 5 Benzene 10,600
<br /> MW9 TPH-g 187
<br /> (-1207) MTBE (821) 13 RW4 Toluene 22,700
<br /> MTBE (8260) <0 5 (-1334) Ethylbenzene 4,100
<br /> V3(-13 14) Xylenes 19,200
<br /> TPH-g 129,000
<br /> 1 �LE�EN Benzene 3 30 PSV1 UV$-MW2 (shallow)(-12 $1) MTBE (8021) 280
<br /> (-
<br /> 1 12
<br /> Toluene <0 5 IUVB MTBE (8260) ;<5 39)
<br /> Ethylbenzene <0 5 RW (-12 61) UVB-MW1 (deep)(-11 39)'
<br /> Xylenes <0 5 _ ! SW2 �MW6 (Dry) Benzene 2,170
<br /> TPH-g 547 Toluene 275
<br /> MTBE (8021) 108 `� RMER ~ V1 PSV2 Ethylbenzene 876 LEGEND
<br /> MW4
<br />' MTBE (8260) 114 (-12 15) ,F ANK (-12 55) Xylenes 408 Benzene 5,930
<br /> �` \eI-p TPH-g 7,840 Toluene 11,800 GROUNDWATER MONITORING WELL
<br /> ZOP1 \ V2 MTBE (8021) 804 Ethylbenzene '2,990 • PIEZOMETER
<br /> (NM}MW2 �4 SW1 _Y (-12 66) RW1 MTBE (8260) <0 5 Xylenes 11,400 VAPOR EXTRACTION WELL
<br /> 1
<br /> (-1221) �V4__ (-12 39) � (_12 58)1 TPHg 6,240
<br /> (-10 96) MW3 MTBE (8021) 190 RECOVERY WELL
<br /> Benzene 207 1 IW1 (-12 05) , ��5(-12 43) ' MW51(-12 36) Benzene 176 MTBE (8260) I <25 PERMANENT SOIL,VAPOR MONITORING WELL
<br />' Toluene 05 P2��, 1� } �R �� Toluene 127 + AIR SPARGING WELL
<br /> Ethylbenzene 7 3 • FARM N , Ethylbenzene 298
<br /> Xylenes 17 1, (N M), �5 �} �} sip,O\NG ��`' ` Xylenes 590 INJECTION WELL
<br />' TPH-g 1,340 ti guts- _ ti�� TPH-g 5,300
<br /> MTBE (8021) 107 �� 1, MW7 'CORM P FOR R MTBE (8021) 696 (-1334) Groundwater Elevation (feet)
<br /> MTBE (8260) <05 (-11 91) PU NpS �r_-`�~ USEp. MTBE (8260) <0 5 (NM) Not Measured
<br /> G 0-P SANK Not Used to Determine Gradient
<br />' Benzene 398 Benzene 920 Benzene <0 5 TPH-g
<br /> Toluene 195 MW8 1 - �~ � g Total Petroleum Hydrocarbons as gasoline
<br /> MW1 Toluene 62 Toluene <0 5
<br /> Ethylbenzene 859 ��m�, (-11 61) 1 (-11 85) -� MTBE Methyl t-butyl ether
<br /> Xylenes 1,820 �a��_ Ethylbenzene 12 4 Ethylbenzene <0 5
<br />' p
<br /> TPH-g 9,800 oy�mr �`J r XTPH g 1,510 ylenes 7 XTIPH g <50 enes <0 5
<br /> MTBE (8021) 196 Note
<br /> MTBE (8021) 268 MTBE (8021) <0 5
<br /> MTBE (8260) 650
<br /> MTBE (8260) <0 5 Analytical results in micrograms per liter(uglL)
<br />' o SITE MAI-' SHOWING GROUNDWATER ELEVATIONS AND ANALYTICAL RESULTS FIGURE
<br /> ET
<br /> IFORMER EXXON R5 7-3942
<br /> I 4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA
<br />' = 17 SEPTEMBER 2003
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