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i <br /> B - 280 <br /> Mote[ Orfeans T - 75 <br /> E - 140 <br /> X X X X - 710 X Fence X <br /> ATR-8 TPH-G- 7,800 <br /> MTBE - <25 <br /> D <br /> B - <05 <br /> T - <05 B - <O 5 Q <br /> E - <05 T - <05 <br /> E - <O 5 <br /> TPH-G- <05 0 X - <05 <br /> MTBE - 23 Not Sampled TPH-G- <50 <br /> VE5-2 MTBE - 440 p <br /> RemedEation <br /> ATR-1 5MW-1 T +ATK-2 m <br /> VES-1 <br /> ..�_..__.. <br /> ATR-9 <br /> B - <0 5 <br /> VE5-3 T - <05 <br /> Remechation VE5-4 <br /> e Facility y y L E - <05 <br /> Pipjng Building °�� X - <05 <br /> TPH-G- <50 <br /> ATR-11 ' a B - <05 MT6E - <2 5 <br /> P- u� <br /> a TB - <05 E � `�TR-7 X - <05 <br /> X - <0 TE X-1 V � _6 TPH-G- <50 <br /> zz TPH-G- <50 E ATR-3 MTBE - 22 <br /> MTBE - <2 5J1 B - 20 <br /> -- i— a T - <10 [ <br /> f 53 E - 16o [ <br /> ATR-5 i X - 110 <br /> B - 54 E TPH-G- 3.40ATR-6 g - <05 >- <br />. T - 0 60 MTBE_ <501 [ + T - <0 5 U <br /> E - <0 5 E - <05 < <br /> X - <05 az <br /> X - <05 --------- VES-7 TPH-G- <50 }— <br /> TPH-G- 220 ATR-4 Planter <br /> MTBE - 69 B - 24 MTBE - 56 <br /> T - Planter <br /> 11 <br /> —ATR-12 E - 0 5 <br /> X - O 57 <br /> B - <05 TPH-G- 320 <br /> T - <05 MTBE - 65 <br /> E - <05 <br /> X - <05 CLOVER ROAD <br /> TPH-G- <50 <br /> MTBE - <25 B - <D 5 <br /> T - <D5 <br /> ATR-10 E - <05 <br /> X - <05 <br /> TPH-G- <50 Note <br /> MTBE - <2 5 Wells ATPZA ATR-3, ATR-6, <br /> ATR-9,ATR-10,and ATR-11 on a <br /> semi-annual sampling schedule, <br /> Le end sampled during the 1st and 3rd <br /> ATR-1+ Monitoring Well and Number quarters of each year <br /> TEX-1+ Dual-Purpose Groundwater/ 5 Benzene, Micrograms Per Liter, ug/L <br /> 5oil Vapor Extraction Well <br /> T Toluene, ug/L <br /> VE5-7+ Dual-Completion Soil Vapor E Ethylbenzerne, ugll- <br /> Extraction/Air 5parging Weil X Xylene, ug/L NORTH <br /> 5-20 Air 5parg:ng Well TPH-G Total Petroleum Hydrocarbons as 0 20 40 <br />. 5MW-1 A& Dual-Completion Groundwater Gasoline,ug/L <br /> Morntormg/Air 5parging Well <br /> MT5E Methyl Tert-Butyl Ether, ug/L Scale I n Feet <br /> DATE 10-27-97 1 <br /> PROJECT 4747 SITE ARCO Facility No. 2093 <br /> B R O W N A N DTracy, California Figure <br /> TITLE Constituent Concentration Map, 2 <br /> C A L D W E L L August 11 , 1997 <br />