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f � <br /> PR-1 15' - <05 <br /> T. - <05 Golf Couro <br /> 13 - 75' Chevron E - <05 <br /> T 1 - 5 5 Gas Station TPH-G - F <50 l <br /> m E v - 4280 MTBE - - <5 Sidewalk l <br /> o[ X ,160 <br /> L TPH-G-X4,600 f <br /> r o MTBE'- -<50 I <br /> z O <br /> BHD-1 <br /> toHOLT DRIVE �� <br /> BENJAMIN X05 <br /> T- c05 <br /> LU _ �— r- E-- 3.900 Eye �<D 5 <br /> � _�E - 600 �`' B X �== <D 5f <br /> --; 130 <br /> TPN-G- <50 <br /> 1 X - 5,100 T - <5 I MTBE-,- '<5 131-ID-2 <br /> tD TPH-G - 28,000 E^ - 180 Sidewalk <br /> .� MTBE - 16,000 X _k ; 46 <br /> w TPH-G- 2,800 <br /> Bax v - 110 z -10 MTBE - 83 T v - 97 <br /> E-9 <br /> E - 94 <br /> TPH-G 1,500 V-2 I �♦ 1 - Story ----� <br /> Legend <br /> MTBE - 25 mW-1 Pump S-1 Residential <br /> ! Isla d5 ` HOU5irtg E_3 Groundwater Monitoring Well <br /> Blockt ! MW-2 Dual Purpose Soil Vapor Extratlon/ <br /> try <br /> Wall ! B - <05 <br /> 7 n V-12 I Groundwater Monitoring WeEI <br /> a 6 _ J V-1 / E <05 Y-101 Dual Completion Soil Vapor Extraction/Air <br /> T<o 5 <br /> E x - <05 ! 1 TPH-G- <50 5parging Well <br /> � f <br /> X>"' <0 5 E-12 V-101 j 6 _ 5 1 MTBE - <5 <br /> { O Recovery Well <br /> +a TPH-G -f <50f �5-8 <br /> o w MTBE%-" °r<5Y ; X Y 1�20� 5-91 T - 31 V-1 A Soil Vapor Extraction Well <br /> z 0 5 - 27 l E-5 _ <br /> T - <05 1 TPH-G -3.700 E-8 E - 14 <br /> J MTSE - <50 V-4 X 14 S-1■ Air 5parging Well <br /> E - 8 1 E- —I&V-6 1 ' Tf H-G- 2,000 � Exleting Groundwater Extraction 5yrtem <br /> X, � - __ O <br /> TPH-G-'^120 MW-2 �1� +Tj' B _ 890 <br /> y MTSE <10 B Benzene, Micrograms Per Liter(uglL) <br /> MTBE - <5 �� S-3 � � T Toluene, ug/L <br /> ! B - 160 ) E u - 380 <br /> _ E Ethylbemcric.ug/L <br /> MW-5 ! T - 6 ��-4 /E-4 X ,60 X Xylene,ug/L. <br /> ! E v - i60 — / TPH-G -7,600 <br /> B - 130 TPH-G Total Petroleum Hydrocarbons as <br /> 1 X - 300 ♦V-7 MTSE -y <5 <br /> T - <5 IV-q/E-11 TPH-G -7,600 I / Gasoline,ug/L <br /> E u ' ° . x 8 4 VETS V-8 7 MTBE Methyl Tert-Butyl Ether,ug/L <br /> 71 f !S-7 V-11 MTSE - <50 / <br /> TPH-G - 3,800 h Enclosure 0 — Yom^— �---- �_2 E-7 B ° - <O 5 Approximate Extent of Benzene <br /> MTBE - <50F — — — — — — — — —�s S 5 T _ <O 5 NORTH in Groundwater,ug/L <br /> Public Utilities Easement Biock Wall o X h <05 <br /> 00 5 0 20 40� �r� Remediation 5ystem Piping <br /> - - 4^ — ' - - - - - --- <br /> - - B - < 3 i MTSE - 55 Scale in Feet <br /> r, f 3 - <05 E - 23 Note <br /> X - 33{; Single Story X - v'24 PR-2 Well51=-3,E-4,E-5,E-6, E-7, PR-1,PR-2, BHD-2, MW-1,MW-2, <br /> Y Condominiums TPH-G,- 1,200 and MW-3 on a sernrannual sampling schedule Wells sampled <br /> TPH-G 4 n400{ MTBE`= °1013 _ <05 during the let and 3rd quarters of each year <br /> MTBE <5 T - <0 5, SITE ARCO Facility No. 2133, <br /> Stockton, California <br /> B <05 1 _ Story MW-3 11 - <05 X - <05 TITLF <br /> T - <05 T - - <05 TPH-G- n<50 Constituent Concentration Map, <br /> E h� - <0 5 ReSidentia[ Hou�fng E _ <0 5 MTSE - #<5 September 25, 1996 <br /> X� -Y<0 5 X - <05 PRa1LLT <br /> TPH-G- <50 � MW-4 TPH-G- <50 B R O W N A N D 331 fi Figur e <br /> MTBE <5 MTBE - <5 C I A L D W E L L b^TI 11-21-96 2 <br />