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I <br /> i <br /> + • 0 MW-6 <br /> ' (NS) <br /> a <br /> MW— <br /> LEGEND <br /> 1 <br /> (ND)D)10 _ <br /> 410 FENCE <br /> ISE-- FENCE <br /> ( <br /> P 6 + MW-3 0 MW_1 GROUNDWATER MONITORING WELLS <br /> CONCRETE + ND)5 <br /> (NS) 0 g0_i APPROXIMATE SOIL BORING LOCATION <br /> 13 AND NUMBER, DRILLED (2/14/90) <br /> M IS) ■ APPROXIMATE CONE PENETROMETER <br /> (360* + i CPT-1 BORINGS AND NUMBER, DRILLED (5/18/99) <br /> PZ-1 APPROXIMATE PIEZOMETER LOCATION AND <br /> NUMBER, INSTALLED (9/94) <br /> ' FORMER DISPENSER 4 +SP-1 APPROXIMATE AIR SPARGE WELL LOCATION <br /> AND NUMBER, INSTALLED (6/95) <br /> O _1 APPROXIMATE VENT WELL LOCATION <br /> AND NUMBER, INSTALLED (6/00) <br /> ' FORMER 6,000—GALLON FORMER 6,000—GALLONS APPROXIMATE AIR SPARGE WELL <br /> GASOLINE UST GASOLINE UST + SP—A LOCATION, INSTALLED (3/02} <br /> REMOVED 4/1987 REMOVED 4/1987 <br /> ' *A APPROXIMATE BORING LOCATION <br /> MW-4 FORMER 10,000—GALLON AND NUMBER, INSTALLED (6/04) <br /> (NS) DIESEL UST * DETECTION MAY BE AN ANOMALY <br /> O EMOVED 9/1989 t NOT INCLUDED IN CONTOURS <br /> SP-3 <br /> (ND) DETECTEDCONCENTRATION NOT <br /> (ND) G r — — <br /> ABOVE METHOD DETECTION LIMIT <br /> ' r , L — — J (NS) NOT SAMPLED <br /> D• L CMW-12APPROXIM <br /> SP—2+ F (190) ` ` 0— ` CONTOUR(us GROUNDWATER CONCENTRATION <br /> FF O (3,x00) MW-7 O MW-8 ■ <br /> ' 90-2� A — (880) (ND) CPT-1 <br /> MW <br /> B 4,00 Q^ 9 <br /> P 1 I <br /> General Note <br /> ' This contour map is based on interpolation <br /> SP-1 between widely spaced monitoring wells and <br /> M W_9 —2 (24,000) only at the monitoring well location is the <br /> (NS) (20,0 A elevation actually known <br /> ' <br /> (ND) <br /> (ND} VW— <br /> (1 1,000}. <br /> MW-5 <br /> ' �D (ND) t / <br /> OMW?11 F <br /> 1 <br /> PROPERTY <br /> ' BC IUNDARY 30 N <br /> FEET <br /> CIO VIM EcHKD, <br /> DES PMECT ND 62400145 <br /> � TPH—G IN GROUNDWATER (ug/L) — CONTOUR MAP M MAL 2651 S Airport Way <br /> s <br /> N APRIL 2005 � Po- Stockton, CA 95206 <br /> DA8/19/05 REV 0 FIGURE 6 <br />