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_WES <br /> �• �_ «' •• k., n i ✓ ,*i ,w � ;,pr:iP; a _ ,uSy` a ". ahPi.:+sat r n. <br /> e <br /> °PR-1 <br /> ,D MDI <br /> O <br /> e <br /> e ------ <br /> BHD--2 <br /> .t (ND) <br /> -1E-10 <br /> 52590 (690) <br /> •t. ` <br /> NORTH <br /> O SCALE IN FEET <br /> D <br /> O ` • 0 10 20 3040 <br /> 000 E_5 e <br /> (3110) y I <br /> a000 LEGEND <br /> r0 E-8 <br /> 00 {536} E-3 EMCON GROUNDWATER MONITORING WELL <br /> a E-3 LOCATION AND NUMBER <br /> `•i ® RECOVERY WELL <br /> 1C"J �-. E-4 <br /> (570) a BROWN AND CALDWELL GROUNDWATER <br /> E_Z PR--1 MONITORING WELL LOCATION AND NUMBER <br /> UND <br /> 5-)2 (11.5 (200) BENZENE CONCENTRATION IN <br /> 1-71 PARTS PER BILLION (ppb) <br /> 000`BENZENE CONTOUR LINE, AUGUST 22, 23, 24, 1989 <br /> pp CONTOUR INTERVAL-1000 ppb <br /> rlp DASHED WHERE UNCERTAIN <br /> PR--2ND NONDETECTABLE <br /> (ND) NA NOT ANALYZED . <br /> Figure 3. Benzene Concentrations -- <br /> August 22, 23, and 24, 1989, <br /> ARCO Station 2133, Stocktcn, CA <br />