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i <br /> M PR 1 NotNot 5— Golf Course <br /> 8 83 Chevron <br /> E T 11 Gar,Station <br /> s � E - 350 <br /> +� oC X - 220 Sidewalk <br /> TPH-G-4,500 <br /> Z O <br /> MTBE . <50 <br /> BHD-1 <br /> T <br /> DKIVE -- �- <br /> � HOL �-- <br /> BENJAMIN —�-- <br /> w B 600 <br /> T _ 3.900 1NoiSampled <br /> - �— E 1.300 ' B 290 <br /> - X 9.800 \ T 32 <br /> TPH-G-55.000 E 80 <br /> U-1 <br /> Sidewalk BHO-2 <br /> a MTBE 27.000 X j, 80 <br /> w .` - TPFi-G- 2,800 <br /> ~ MTBE 560 <br /> z .10 E-9 <br /> V-2♦ I �� I 1-5tory —� <br /> T Legend <br /> Not Sampled W-1 Pum 5-1� \� � Residential <br /> 1 I IslandsI lock S-2� - Housing E-30. Groundwater Monitoring Well <br /> Bwall 1 V-1 <br /> \� --A \ MW-2® Dual Purpose Soil Vapor Extration/ <br /> _. z. < O ry V-1�� S t Groundwater Monitoring Well <br /> 8 0.5 <br /> o T <0.5 I 1 V-10/ Dual Completion Soil Vapor Extraction/Air <br /> a E 05 1 \ 5 8 5parging Well <br /> s X -' -'-<05 E-12 y-10! 1 jNotSamp(ed - <br /> rPH-G'-"<50: 5-8 1 Facility O Recovery Well <br /> z o MTB& <5' Building 5 9/ I Br 59 V-1♦ Soil Vapor Extraction Well <br /> 1 f <br /> E-5 E-8 E15 <br /> 1 Not Sampled V-4♦ X -`,<5 5-1M Air 5parging Well <br /> E 6W __.&V-6 O / MTBE 1.800 <br /> <50 ❑T Existing Groundwater Extraction System <br /> Not Sampled. M -2 1 --T --- <br /> -�� Rot Sam ed 1 - B Benzene,Micrograms Per Liter(ug/L) <br /> 1 5 3 I p E-3 1 I <br /> T Toluene,uglL <br /> B --_J N 5` If E-4 Not Sampled X Xie.ugI ne,ug/L 1 <br /> E 15 __ C <br /> X 44 \W 5 1 _ — �AV_7 TPH-G Gasoline. <br /> Petroleum Hydrocarbons as 1 <br /> TPN-G 4.200 5VET5 y_g/E t1 V 11 BUST Complex j�6- I MTBE Mae"Tera-/Butyl Ether,ug/L <br /> MTBE 420 5.7 V-5 <br /> Trash Enclosure 0 _— �—___E_2 'I E_7� �� Approximate Extent of Benzene <br /> —————— — —————='S 5 —— Not Sampled NORTH in Groundwater,ug/L <br /> Public Utilities Easement Block Wall I Q 0 20 40 — Remediationtem Pi <br /> ------ <br /> ———————------ B 6.4 `Ys Piping <br /> B 3.5 T <0.5 t Scale in Feet <br /> T - <05 E ,,.4;F 24 Note: <br /> E 1.4+ 5ingle 5tory X 27 Wells E-3.E-4,E-5.E-6.E•7,PR-1,PR-2,BHD-2 MW-1,MW-2, <br /> X' 2 TPH-G-:,680 PP-2 and MW-3 on a semi-annual sampling schedule.Wells sampled <br /> TPH-G- 280- Condominiums 'MTBE -- 8.7 Not Sam led during the lot and 3rd quarters of each year. <br /> MTBE - <5 P <br /> SITE ARCO Facility No. 2133, <br /> Stockton, California <br /> T <05 1-5tory Constituent Concentration Ma <br /> T' - <05 Residential Housing P <br /> E - <0.5 g �MW-3 <br /> X <0.5 December 4, 1996 <br /> - Not Sampled vxae <br /> rPH-G- <50 '0 MW-4 B R O W N AND CT 3316 Figure <br /> MTBE - <5 C A L D W E L L °"� 9_s_07 9 <br />