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NMI ii it NM.. 1� <br /> B- 31 <br /> T- <1.2 <br /> E- <1.2 CHATEAU <br /> X- <11.2 Approximate HOSPITAL <br /> TPH-g- 750 Groundwater B- 1.8 <br /> MTBE(8020)- 170 Flow Direction T- 0.60 <br /> MTBE(8260)- 180 B- <0.5 B- 140 E- 0.84 <br /> PROFESSIONAL T- 0.99 T- 1,600 X- <0.5 <br /> W MW9 BUILDING REALTOR E- 0.66 E- 3,000 TPH-g- <50 Mw13 <br /> B- ' <br /> X- 4.1 X- 13,000 MTBE- 3.1 <br /> T- <0.5 B- <2.0 B- 200 TPH-g- <50 TPH-g 48,000 B- <0.5 <br /> E- <0.5 T- <2.0 T- 170 MTBE- <2.5 MTBE-- 690 T- <0.5 <br /> TPH X <0.5 E- <2.0 E- 370 E- <0.5 <br /> MTBE- <50 X- <2.0 X- 610 Mwlo X- <0.5 <br /> 12.5 TPH-g- 720 TPH-g- 7,200 TPH-g- <50 <br /> B- 30 MTBE- <10 MTBE- 350 ROSEMARIElANE MTBE- <2.5 <br /> T- <10 <br /> E- 160 - RW4 MW12 l <br /> X 130 Psw <br /> TPH- Rwz uvB-Mw1 uve B- 9,400 B- 260 <br /> 9- 2,200 MW4 T-16,000 T- 350 <br /> MTBE- <5p W P1 MW2 *SW2 E- 2,300 B• <0.5 <br /> W Z v1 Y Mwa X-11,000 X- 570 T- <0.5 <br /> ---- E- <0.5 <br /> w S F B- 25 I Swt Psvz OI TPH-g-91,000 TPH-g- 4,100 <br /> xrc< IWt + I X- <0.5 <br /> m m T- <5.0 I 2! v2 MTBE(8020)- 2,200 MTBE- 88 <br /> ow E- 25 v+ MTBE (8260)- <200 TPH-g• <50 <br /> X- <5.0 P2 1 Former OII Mrs w1 MTBE- <2.5 <br /> TPH-g- 1,300 t Tank ___ B- 410 LEGEND <br /> MTBE- <25 �MW7 Field j--- T- 1,500 <br /> I I E- 750 -+ Air Sparging Well <br /> 1 MW5 X- 1,800 O• Permanent Soil Vapor Monitoring Well <br /> Mwe ti I I TPH-g-13,000 • Piezometer <br /> K Awl I Former 1 MTBE(8020)- 520 <br /> 2 Forma I Stalion I MTBE (8260)- <25 Injection Well <br /> Islands I Building I L-1 FUsedr Soil Vapor Extraction Well <br /> L____I oil Tank B- 12,000 Recovery Well <br /> B- <50 I T- 34,000 Groundwater Monitoring Well <br /> T- 700 JI E- 4,500 B- Benzene <br /> E- 2,500 - - B- 3.2 X- 22,000 T- Toluene <br /> X- 8,100 T- <0.5 TPH-g- 160,000 E- Ethylbenzene <br /> TPH-g- 36,000 E- 3.4 MTBE- 3,500 X-Xylenes <br /> MTBE (8020)- <250 X- 0.71 TPH-g- Total Petroleum Hydrocarbons as gasoline <br /> MTBE(8260)- 69 TPH-g- 160 MTBE- Methyl t-butyl ether <br /> MTBE- 6,2 Analytical results In micrograms per liter(Ng/L) <br /> Figure 1. Site map showing groundwater sample analytical results and 0 � 60 120 <br /> approximate groundwater Flow direction, former Exxon RS 7-3942, O <br /> Stockton, California, 11 November 1997. L Approx. Scale (feet) <br /> 73942r41197.FH5 <br />