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LEGEND AREA 2 <br /> MW-13B <br /> • MONITORING WELL LOCATION 85 .49/35. 15 MW- 146 <br /> (ND)� , <br /> O DEEPER ZONE MONITORING WELL LOCATION R D� O( 87 .33/30 .09 <br /> (NA) D <br /> 87 . 00 - GROUNDWATER ELEVATION CONTOUR , ( ND) r ; "','' '• 44 . <br /> IN FEET ABOVE MEAN SEA LEVEL (ft MSL) , <br /> DASHED WHERE INFERRED O/ ' <br /> 87 .60/33 .47 GROUNDWATER ELEVATION IN ft MSL/DEPTH TO °� �� ` <br /> WATER IN FEET BELOW GROUND SURFACE (ft BGS) <br /> (23 , 000) TPH AS CRUDE OIL , CONCENTRATION IN <br /> MICROGRAMS PER LITER (ug/L) <br /> (89) BENZENE CONCENTRATION IN pg/L (bO AREA 3 <br /> ND NOT DETECTED <br /> O <br /> NA NOT ANALYZED \ olb / <br /> 0 .004 r <br /> _- - GROUNDWATER FLOW DIRECTION <br /> AND GRADIENT <br /> DO <br /> NOTE : 4>A <br /> WELLS IN GRAY ARE SCREENED IN DIFFERENT ZONES FORMER SHELL MW-5B <br /> AND NOT USED IN CONTOURING . CRUDE OIL PIPELINES 87 , 84/33 , 08 <br /> . 84/33 . 08 <br /> ( NA) <br /> ZONE B - WELL SCREEN INTERVAL 105 TO 125 ft BGS (ND) <br /> AREA 4 <br /> figure 5 <br /> ZONE B - GROUNDWATER CONTOUR AND CHEMICAL CONCENTRATION MAP e AREAS 2 , 3 , AND 4 <br /> 0 40 Soft NOVEMBER 30 , 2011 <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> CORDES RANCH <br /> BASE MAP : SAIC SHELL PROPOSED BORING LOCATIONS MAP DATED 05/07/08. CLAYTON 7- <br /> GROUP SERVICES PREVIOUS SOIL BORING LOCATIONS DRAWING DATED 8/28/02. Tracy, 4/�+ <br /> allfornia <br /> SOURCE : MID COAST ENGINEERING SURVEYS DATED 8/13/10, 9/13/10, 717/11 , AND <br /> 8/18/11 US STATE PLANE 1983, CA ZONE 3 (NAD 1983), NAVD 88, <br /> 060223-2011 (016) GWS0005 FEB 15/2012 <br />