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Pre-1 s x Golf Course <br /> Not Sampled <br /> Chevron I <br /> Try - ill 51 Gas station <br /> _SN430 5+dewalk <br /> +� nG X - 300 <br /> L TPH-G-5,500 <br /> o MTBE -,, <5 3 <br /> z O <br /> BH D-1 l �� <br /> k <br /> 13ENJAMtN -------- 1--�- - I <br /> p - 396 <br /> X n n -3,600 Not Sam fed <br /> �r Ef h - 2.000 `� 13 - -110 N< <br /> X -16,000T f f _V" 32 13HD-2 <br /> ~ TPH-G-400.000 E -; 69", <br /> 5+dewalk ' <br /> a MT13E - C,200 <br /> X % '91 <br /> F-t <br /> Ld TPH-G - 1,600 <br /> -10 MTBE - ,110,,1 <br /> z E-9 <br /> �V3 <br /> V-2 �� 1 - Story �- Le end <br /> 'Net{Sarripled} MW-1 � �� � ReSident+a! g <br /> ! Pump p HouS+n E_3 Groundwater Monitoring Weil <br /> ! Islands S 2� g t <br /> Block N V-12 .__ MW-2® Dual Purpose Soil Vapor Extratton/ <br /> Wall O � = S Groundwater Morntorrng Well <br /> 1 <br /> � Bg y - <0 5 (fl 1 V-1 1 + V-101 Dual Completion Soil Vapor Extraction/Air <br /> 13 E E; h _ - <05 1 ! 5-8 5pargmg Well <br /> ! 1 <br /> t r X - 3 3 E-12 V-101 j Fac+l+ty ; 1 Not Sampled F O Recovery Well <br /> +� TPH-G- <50 5-8 V-1 Sot!Vapor Extraction Well <br /> o MT13E v 4 13 1 6u+lr�tng 5-9 B - 41 <br /> ! 1 T _ 4 7, <br /> z O ! / E-� E-8 E - 16 l 5-1 Air 5parging Well <br /> ! Not Sampled,, V-4 X - 49 <br /> ! E- —.rte—J►V-F Nod Sampled ' TPH-G, 2,300 Existing Groundwater Extraction 5y5tem <br /> Not Sampled - MW-2 ! ��'�—� O 1 MTBE u-r=<5 <br /> 1— �f ' J� � 13 Benzene,Micrograms Per Liter(ug/L) <br /> 1 <br /> 5-3 T Toluene, uglL <br /> ! 1 U5 Complex 15-4 1 g , # �g« � E Ethylbenzene,ug/L <br /> 13 - 170 ! 1 �� �E-4 Nat Sampled X Xylene, ug/L <br /> T,& fig - <05 MW-5 1 �' TPH-G Total Petroleum Hydrocarbons a5 <br /> 1�s i <0 5 \ ! E-11 r _ ——1 ` �AV-7 Gasoline, ug/L <br /> TPH-G» 15,DO VETS 15 9l Y-11? 1— V-a_ f MTBE Methyl TerG-Butyl Ether,ug/L <br /> MT13E - <5 S- V-5E_7 Approximate Extent of Benzene <br /> 5h Enclosure — � —f--W--E-2 p o NORTH i r to Groundwater,ug/L <br /> --- - - - - - - - - - - X55 - - Not 5aM'pled i <br /> Public Utilities Easement Block Wall I Q 0 20 40 Remediation System Ptptng <br /> - - - - - —. - - - - - - - --- - - - - 3 B� � - ;54 + Scale in Feet j <br /> Bt 11 T - 12 , <br /> T, 9 E - 11 Note <br /> # 3 2 X TV = X10 Wells E-3,E-4, E-5, E-6,E-7, PR-1, FIR-2, 151-ID-2, MW-1,MW-2, <br /> E_ ' Single Story PR-2 <br /> X -� g 2 w 7PH-G- T550 and MW-3 on a semi-annual sampling schedule Wells sampled <br /> Corid om+niumo £Y ` 'Y during the 1st and 3rd quarters of each year <br /> 7PH-G "? 620 MT5E -: 10 Not Sampled f <br /> l MTBE - <5 S SITE ; ARCO Facility No. 2133, <br /> Stockton, California <br /> B F v °= <o5 1 - Story TITLE <br /> T 1Constlltuent Concentration Map, <br /> ;`, =w <br /> E w <0< 5 05 Residential Housing { MW-5 i June 18, 1996 <br /> TPM-G =;5, MW-4 Not Sampled B R O W N A N D PROJECT 3316 Figure <br /> MTBE - <5 x C A L D W E L L "Tr 7-30-96 2 <br /> I <br />