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} <br /> 75 PK-1 TB - 0 51 <br /> 1 Golf Course <br /> JN F r3, - 39z Chevron i X 4 ,r�<O 5' <br /> , 3> Gas Station TPH-G 3= <50 <br /> 1 <br /> ca E ` i i 76 MTBE{- <5 5ldswalk <br /> OL X, x, 12 <br /> L TPH-G 3;500 <br /> o MTBE _ -170 <br /> Z O e <br /> I <br /> Iry � <br /> toHOLT <br /> BENJAMIN <br /> f� �— r B - 2 8 Not Sampled <br /> � T - <0.5 <br /> _ E - <05 µ <br /> a X � :- 2 � - <05 alk BHD-2 <br /> TPH-G -, 100 E - <05 5idew <br /> 0z MTBE - 161 X, - <05 <br /> w TPH-G - <50 <br /> %-- MTBE - 85 <br /> z E-9 <br /> -- -- -� E-10 �V-3 I <br /> V-2+ / ♦� 1 - Story —� Legend <br /> NotSamplsd MW-1 Pum �� Residential 'I'! p � ' E_3.�. Groundwater Monitoring Well <br /> O Housing <br /> ! l Islands 5-2� <br /> Block j ! 1 �\ �� My�_2® Dual Purpose Soil Vapor Extration/ <br /> 7SWall A ! V-12 = Groundwater Monitoring Well <br /> r B <0 5 O !'� / 1 i <br /> 3 21- T <05 � ! V-1 / / i k V-101 Dual Completion Soil Vapor Extraction/Air <br /> /// <br /> o f E _ <05 ! / 5-g 5parging Well <br /> X > W - <05 E-12 <br /> TPH-G- <50 V-10/ j / Not Sampled O Recovery Well <br /> �i µ` MTBE - <5 5-8 <br /> o j 5-9 B - 13 - V-1 A Soil Vapor Extraction Well <br /> j T - 14 <br /> z O j ! E-5 E-8 E - 47 S-1■ Air 5parging Well <br /> V <br /> ! Not Sampled j -6 p —�V-6 i� TPH-G- 900 ❑Y Existing Groundwater Extraction 5y5tem <br /> j --- II MTBE - <5 <br /> Not Sampled MW-2 —rT f ——— 13 Benzene Micrograms Per Liter(ug/L) <br /> --- 5 3 I Not Sampled E-3 I T Toluene, ug/L <br /> E Ethylbenzene ug/L <br /> 1-4�T 51 ! h _ 5-`} /E-4 Not aampled X Xylene ug/L <br /> E _ 4 �MW-5 / TPH-G Total Petroleum Hydrocarbons a5 <br /> X 14 ! r—— ^�y ��V"7 Gasoline, ug/L <br /> TPH-G 1,900 SUETS !V_9/E-11 V 11 IU5T Complex) L8 / MTBE Methyl Tert-Butyl Ether,ug/L <br /> MTBE =' <10 S 6 V-5 ? 5 <br /> —1_ V E�2 0 � <br /> Trash Enclosure ■ --�— —`�—■5 5--- � - p E_7 NORTH Approximate Extent of Benzene <br /> Public Utilme5 Eagement Block Wall T y Not Sampled m Groundwater, ug/L <br /> 0 0 20 40 <br /> —. — — ^ — — —. — — — — — — _ _ _ _ — _ _ B - <05 _�r� Remediation 5ystem Piping <br /> B - <05 IT - <05 Scale in Feet <br /> T - <05 `E - <05 Note <br /> E - <05 5�nX - <05 Wells E-3, E-4, E-5,E-6, E-7, FR-2, 131-10-2, MW-1 MW-2 <br /> X - <05 gle Story ITPH-G - 82 PR-2 and MW-3 on a semi-annual Sampling Schedule Wells Sampled <br /> TPN-G- <50 Condominiums MTBE - <5 during the lot and 3rd quarters of each year <br /> MTBE _ <5 I Not Sampled slTs <br /> l ARCO Facility No 2133, <br /> Stockton , California <br /> B — <05 1 — 5tory TITLE <br /> T - <05 MW;3 Constituent Concentration Map, <br /> E _ <05 Residential Housing June 5, 1997 <br /> X - <05 Not'5ampled B R Q W N A N D rRoli CT 4757 Figure <br /> TPH-G - <50 + MW-4 <br /> MTBE - <5 uA I i <br /> C L D W E L L 7-9-97 2 <br />