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P1z-1 6#' - r<0,5 Golf Couro <br /> 75 T T - <0B <br /> Chevron ' _ <0b <br /> Jzh T , Y <O Gas Station TO y `� <50 <br /> ca E - ' 190 D�„� `- -025 S1dewalk � <br /> +" Q[ X - 100 <br /> L ' TPH-G x2.300 <br /> O 5-- - , <br /> Z O <br /> 5H D-1 <br /> \ <br /> HOLT D IVE f � - <br /> gENJAMIN �� - T- - <05 <br /> Eh <br /> �— r W ' X� u - <0B <br /> � – `43 TPH=G- <�i-0 <br /> l �� � – E , s DOVk - 118 <br /> Q X T l3 +- �<O 5 <br /> T , n- <05 BHD-2 <br /> TPH-G- 1,6Q0 E _ �O 5 51dewalk l <br /> MTBE -- 1,100 <br /> DO - Q 11 X ^ <0.5 <br /> 13 w =,051 TPH-G <50 <br /> Z ,T� n<05 �n6 - <5 <br /> iE J, - <05 E-10 E-9 - O`14 <br /> IX k^F<05 /*V-3 <br /> TPH^G- <5D u r 1 - Story <br /> MTBir - <5= V-2+ + \ Legend <br /> po�MT - 017 MW-1 l Pump 5-10 �� KCE'Wential <br /> It Islands ` O Houoino E-3* Groundwater Monitoring Well <br /> Block 1 5-21Y.� C <br /> MW-2® Dual Purpose Soil Vapor Extratlonl <br /> 73 Wail V_12 z Groundwater Monitoring Well <br /> 5 - <055 !`� <br /> T - <05 � j V-1 � � 13 ��� V-10/.& Dual Completion Soil Vapor Extraction/Am <br /> E E - <06 r E _ 5parging Well <br /> qX" v <0- E-12 <br /> TPH-G- <50, V-10/ j 130, - <O 5 TPH-G- <50� OR Recovery Wel I <br /> L DO 8 26 5-8 T' -,<05, <br /> , <br /> o q E - <05` 5-19 °O - 781 5` 19 V-1 A 5oil Vapor Extraction Well <br /> z 0 5 - 17 X r - <05 E-5 T , 5 v � 11 <br /> T - 069 TPM-G- <50 Y 1 E-8 E � ,94 5-10 Air 5parging Well <br /> Ew = 31 1 / DO - O19 14 X -_O$2� <br /> X 44 1 -6 -A V-6 ! 00_G- 01' fF Existing Groundwater Extraction 5y5tem <br /> TPH-G-x 510, MW-2 __T__ <br /> DO - 035 5 -40 1 13 _':120 f 5 Benzene, Micrograms Per Liter(ug/L) <br /> ~`~J cl_3 T t - 62 E-3 i T$ ,54 , I T Toluene, ug/L <br /> B 26 E - 4C3a> S E Ethylbenzene, ug/L <br /> T- _ 56 I X - 99 �E-4 iX ^ <5 X Xylene,ug/L <br /> E - 4 6 MW-5 TPH-G-4;400 T3'H-G 1'600 TPH-G Total Petroleum Hydrocarbons as <br /> X - 98 ! E-11 DO - 016 , i►V-7 DO - 021 Gasoline, ug/L <br /> TPH-G 1,400 5VET5� V-9/ '77=7 — a MTBE Methyl Tert-Butyl Ether ug/L <br /> DO z� �'011 1 S�6 Y-5 V-11�11 �/,E-2 ` 0 FJ DO Dissolved Oxygen <br /> Trash Enclosure � �"–'♦�""1—�—��----- � E-7 <br /> — — — — — — _ _ _ _ _ _ _ 5-5 _ _ O NORTH Approximate Extent of 5enzene <br /> Public Utdltle5 Easement Block Wall T— > B - <05 in Groundwater, ug/L <br /> <'o� a Zo ao <br /> - - - - - - - - - - - - - - ,- - - - - - ID _ <0m5 kE� _;,fb5 � Remedlatlan5ystemPlping <br /> T - <05 IX - {<05 Scale in Feet <br /> T - <05` E , `- <0.5 TPH-G- <50` Note <br /> X = <0.5 DO - 019 <br /> E - <05 Sin le 5to Wells E-3, E-4 E-5,E-6, E-7, PR-2, BHD-2, MW-1, MW-2, <br /> X - <05 9 TPH-G <50 PP-2 and MW-3 on a Semi-annual sampling schedule Wells sampled <br /> TPH-G - <50 Condominiums 'MTBE - <5 BV _ <0 ]�' <br /> during the lot and 3rd guarters of each year <br /> DD - 105*; RQ - 0339 T - h<0. SITE <br /> ARCO Facility No 2133, <br /> �<D: <br /> X fix^ <0Stockton, California <br /> 13 <OB 1 - 5tory MW_3 B _ <0 5�'t 8 TITLET <05 IT - <05 TPH-G- <5onstltuent Concentration Map, <br /> E _ <0.5 Residential Housing E w <O DO - 2.2 I March 19, 1997 <br /> X _ _ - - <Ob I X <05 PROJECT <br /> TI'H-G- <50 + MW-4 TPWG-` <50 > B �a O W N A N D 4757 Figur e <br /> 100 - 162 I Do 9053' C A' L D W E L L DATO 4-29-97 2 <br />