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LEGEND <br /> MW-21 I ; <br /> • MONITORING WELL LOCATION 67.04 <br /> (ND) <br /> A SOIL VAPOR PROBE LOCATION (ND) I <br /> FORMER PIPELINES-APPROXIMATE LOCATION - _"I <br /> ---------------------PROPOSED DEVELOPMENT _I <br /> – — —— — — —–PARCEL BOUNDARIES <br /> OEXCAVATION FOOTPRINT <br /> 74.02 GROUNDWATER ELEVATION RELATIVE <br /> TO FEET MEAN SEA LEVEL(ft MSL) <br /> (ND) TPH AS CRUDE OIL,CONCENTRATION IN i tri <br /> MICROGRAMS PER LITER(Ng/L) AREA 3 <br /> 1 I <br /> (ND) TPH AS DIESEL,CONCENTRATION IN Ng/L i I C\� MW-4 <br /> (ND) BENZENE CONCENTRATION IN Ng/L I 64.43 ; <br /> I I 1 O 1 <br /> —67.20— GROUNDWATER ELEVATION CONTOUR, cow 00 (ND) <br /> IN ft MSL ; I AREA 4 /(ND) <br /> ND NOT DETECTED O _/ MW-5 I ; <br /> i MW-3 ` 64.37 i <br /> NA NOT ANALYZED ' 64.71 (ND) MW-6 I �- <br /> I ' 1 <br /> (ND) <br /> (ND) <br /> MW-7 <br /> GROUNDWATER FLOW DIRECTION=VARIABLE Q I 64.48 <br /> NDI ' <br /> ( ) (N D) 64.14 (ND) I ,------------------------------------------------- <br /> APPROXIMATE HYDRAULIC GRADIENT=0.004 TO 0.02 ; ' (ND) (ND) (ND) ; <br /> Qi MW-15—� (ND) (ND) I ; <br /> ' 64.88 (ND) I ' <br /> Q ; (ND) AREA5I MW-8 <br /> (ND) 1 64.22 I ; <br /> NEIGHBORHOOD CI = (ND) 65.60 (ND) I ; <br /> ND) ;(NDS I 1 <br /> I 66.60 A SVP-1 ' <br /> i I ; _--__----_-J I <br /> -- - -------------------- -- ' <br /> I <br /> -- -_ ' <br /> 1 MW-9 1 1 <br /> J 64.46 ; <br /> I <br /> I ; � (ND) ; 1 <br /> ' rn ') (ND) ; <br /> I 1 (ND) 1 <br /> MW-16 0 ; <br /> 67.93 �c5� MW-10 <br /> (ND) 0 64.14 ' <br /> (ND) (ND) APN:209-450-19 <br /> I i I (ND) I (ND) <br /> (ND) � ( <br /> 1 1 , <br /> iI ----------- <br /> I I- ----- <br /> ----- - <br /> ---------------------- <br /> AREA 6/7 <br /> --------------------------- <br /> ------------------------------ <br /> ------------------ <br /> ------------------------------ <br /> ------------------------------------------ <br /> ---------- <br /> ------------------------' <br /> --------------------------------------------------------------- <br /> I�------------------------------------------ ' <br /> 0 100 200ft <br /> 1 1 <br /> I I 1 <br /> 1 1 <br /> i <br /> , <br /> figure 3a <br /> GROUNDWATER CONTOUR AND CHEMICAL CONCENTRATON MAP - AREAS 3 - 7 <br /> CALIFORNIA NEIGHBORHOODS C AND D, PARCEL 209-45 <br /> SEPTEMBER 15, 2010 <br /> SOURCE:SAIC,06/11/2008 AND SAN JOAQUIN COUNTY ASSESSOR'S MAP BK.209.45. FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> O MONITORING WELL LOCATIONS MW-2 THRU MW-16 AND SOIL VAPOR PROBE LOCATON <br /> SVP-1 BASED ON MID COAST ENGINEERING SURVEY DATED 10/28/09,COORDINATE Mountain House, California <br /> SYSTEM US STATE PLAN 1983,CA ZONE 3.BENCHMARK ELEV=62.315 FEET,NAVD 88. <br /> 060222-2010(009)GN-S0004 OCT 26/2010 <br />