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t 0 MW-6 <br /> (NS) <br /> LIEGEND <br /> 0 (ND)MW- {{ )) X FENCE <br /> SPND6 <br /> ' SP-5 ®MW-1 GROUNDWATER MONITORING WELLS <br /> + 0 NS 3 <br /> CONCRETE ,+, SP— ® APPROXIMATE SOIL BORING LOCATION <br /> MW-13 <br /> `90-1 AND NUMBER, DRILLED (2/14/90) <br /> ' <br /> (NS) M CPT-1 APPROXIMATE CONE PENETROMETER <br /> SP-4 BORINGS AND NUMBER, DRILLED (5/18/99) <br /> (ND)+ � PZ-1 APPROXIMATE PIEZOMETER LOCATION AND <br /> r NUMBER, INSTALLED (9/94) <br /> 1AIR <br /> FORMER DISPENSER +SP-1 ANDAPPROXIMATE <br /> INSTALLEDE(66/95) LOCATlON <br /> 0VW_1 VAPOR EXTRACTION WELL <br /> ' -1 LOCATION AND NUMBER, INSTALLED (6/00) <br /> FORMER 6,000—GALLON APPROXIMATE AIR SPARGE WELL <br /> ' r GASOLINE UST FORMER 6,000_GALLON r SP—A LOCATION, INSTALLED (3/02) <br /> 1987 <br /> / <br /> REMOVED 4 GASOLINE UST rl <br /> REMOVED 4/1987 A APPROXIMATE CPT BORING LOCATION <br /> AND NUMBER, INSTALLED (6/04) <br /> ' MW-4 FORMER 10,000—GALLON <br /> (NS) DIESEL UST DETECTION MAY BE AN ANOMALY <br /> O REMOVED 9/1989 NOT INCLUDED IN CONTOURS <br /> + (ND) CONCENTRATION NOT DETECTED <br /> SP-3 I ABOVE METHOD DETECTION LIMIT <br /> lei (ND) G r — — <br /> L — — _I (NS} NOT SAMPLED <br /> r C ®MW-12 APPROXIMATE GROUNDWATER CONCENTRATION <br /> ' D• L — — — �5P •2 0�•F (ND) — — 0— — CONTOUR (ug/L) <br /> I— r� _ (ND) I MW-7 MW_8 RCPT-1 <br /> L - - - J 10� ' (72) �1 (ND) <br /> 90--2 M 1 , <br /> 90-1 <br /> B SID 1 000 10 ` General Note <br /> This contour map is based on interpolation <br /> (880) ` ` between widely spaced monitoring wells and <br /> Q {880 <br /> MW-9 A only at the monitoring well location is the <br /> (NS) PZ-2 i , elevation actually known <br /> ( <br /> (NS) (5 6) —1 <br /> (NS) <br /> E (1,100 5 r <br /> MW <br /> BMW-11 <br /> PROPERTY 0 30 <br /> BO I NDARY �V <br /> FEET <br /> mu DES PROJECT "o- 62400145 <br /> f _ GROUNDWATER CONTOUR MAP - BENZENE 09/L) TMM ETIC 2651 S Airport Way <br /> {' toxo AM Stockton, CA 95206 <br /> FOURTH QUARTER - NOVEMBER 2005 PEA <br /> 11/10/05 M1 FIGURE 5 <br />