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1 <br /> 1 � <br /> MW-6 <br /> (N5) = <br /> LEGEND <br /> (ND) ( ) -- - FENCE <br /> SPN D6 <br /> SP-5 �OMW-1 GROUNDWATER MONITORING WELLS <br /> CONCRETE + (ND) + (NS)3 090-1 APPROXIMATE SOIL BORING LOCATION <br /> ' I AND NUMBER, DRILLED (2/14/90) <br /> MW-13 <br /> (NS) RCPT-1 APPBORIRNGSMATE AND NONE UMBER,NETMETER <br /> RRILO ED (5/18/99) <br /> SP-4 <br /> ' (ND}} <br /> �A PZ–i APPROXIMATE PIEZOMETER LOCATION AND <br /> NUMBER, INSTALLED (9/94) <br /> +SP_1 APPROXIMATE AIR SPARGE WELL LOCATION <br /> ' FORMER DISPENSER S AND NUMBER, INSTALLED (6/95) <br /> -1 <br /> ANDOXIMATE NUMBER,1INSTAENT L ED (6/00)LOCATIONELL <br /> 74 <br /> ' FORMER 6,000–GALLON FORMER 6,000–GALLON i APPROXIMATE AIR SPARGE WELL <br /> GASOLINE UST GASOLINE UST f SP–A LOCATION, INSTALLED (3/02) <br /> REMOVED 4/1987 REMOVED 4/1987 <br /> •A APPROXIMATE BORING LOCATION <br /> AND NUMBER, INSTALLED (6/04) <br /> ' MW-4 FORMER 10,000–GALLON <br /> (NS) DIESEL REMOVED 9/1989 !{ NOTE INCLUDED INCTION MAY ECONTOURS <br /> AN ALY <br /> 0 <br /> + (ND) CONCENTRATION NOT DETECTED <br /> SP-3 _ , <br /> ABOVE METHOD DETECTION LIMIT <br /> (ND) G L — J (NS) NOT SAMPLED <br /> D r • –1 • G MW-12 <br /> 0 <br /> • - _ APPROXIMATE GROUNDWATER CONCENTRATION <br /> SL — — — _ OF <br /> F (ND) i CONTOUR (ug/L) <br /> L — J r — J (ND) MW-7 MW-8 I M CPT-1 <br /> 90-2 - - 1,000 <br /> (32) <br /> ' MW 10 0go- ( General Note <br /> B (1 �j This contour map is based on interpolation <br /> ' SP– between widely spaced monitoring wells and <br /> SP-1 only at the monitoring well location is the <br /> 0 (1,5 elevation actually known <br /> (NS)9 0 PZ-2 A <br /> ' MW-2 (1 10) –1 i <br /> (NS) <br /> PZ-1 <br /> E (1,700)0 MW-5 <br /> ' (ND) <br /> (45) <br /> MW-111 <br /> PROPERTY <br /> ' BOUNDARY 0 30 <br /> FEET <br /> OWN DES PROJECT NO <br /> 62400145 <br /> toc S <br /> BENZENE IN GROUNDWATER (u L - CONTOUR MAP ll TMM MAL S Airport Way <br /> g ` g/ � cNKD ,aPPD Stockton, CA 95206 <br /> N [� � JANUARY 2005 PEA <br /> REv FIGURE 5 <br /> 8/19/05 1 <br />