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r <br /> LEGEND I APN:209-450-26 <br /> ------------------ <br /> i MONITORING WELL LOCATION 1 1 <br /> 3 1 <br /> A <br /> ---------------------- <br /> ~---- <br /> SOIL VAPOR PROBE LOCATIONE <br /> 1 I <br /> 1 I <br /> FORMER PIPELINES-APPROXIMATE LOCATION J <br /> I 1 I <br /> --------------------- DEVELOPMENT I <br /> —— — — -- — — —PARCEL BOUNDARIES f <br /> O EXCAVATION FOOTPRINT I I <br /> 1 i <br /> f 1 i I <br /> 74,02 GROUNDWATER ELEVATION RELATIVE ' <br /> TO FEET MEAN SEA LEVEL(ft MSL) <br /> (ND) TPH AS CRUDE OIL,CONCENTRATION IN AREA 8 <br /> MICROGRAMS PER LITER(pg/L) i I <br /> 1 ! <br /> (ND) TPH AS DIESEL,CONCENTRATION IN pg/L <br /> (ND) BENZENE CONCENTRATION IN pg/L <br /> —66.15 GROUNDWATER ELEVATION CONTOUR, MW-14 / <br /> IN ft MSL I : 65.74 f <br /> MW-12 (ND)� <br /> ND NOT DETECTED f 65.65 <br /> (ND)' <br /> / <br /> I (ND) 6 `51 i (ND), f <br /> GROUNDWATER FLOW DIRECTION=VARIABLE AREA 9/10 (ND) gh ` �,j <br /> (ND) `S'� I / <br /> APPROXIMATE HYDRAULIC GRADIENT=0.003 f 4j POJ' � <br /> f • � �6sss?s f / <br /> I 66�75gs f / <br /> '6 60 ' V <br /> f 1 AREA 11 6,Sc4$ �^��SS,—9. <br /> i f <br /> 1 <br /> f 1 ' - 1 APN:209-450-28 <br /> + APN:209-460-21 <br /> i 66.05 ,� MW-13 <br /> (ND) 0% 66.31 E <br /> 1 <br /> i I (ND)i (ND) <br /> (ND)I (ND) <br /> 1 I <br /> 1 I i i <br /> I AREA 12 <br /> E 1 I I i 1 1 --_- _• -.--...-__ -n -- <br /> 1 ii i 1 _ _ -_--• <br /> Ir i I ~— '".` '�" ..�-- ----___• ----------- '�... -AREA 13�, �.. ..—-- •--'."' '� —� ��� — <br /> ---------------- '--- ---------------. - <br /> f <br /> 0 100 200ft I <br /> f <br /> figure 3b <br /> GROUNDWATER CONTOUR AND CHEMICAL CONCENTRATON MAP - AREAS 8 - 13 <br /> NEIGHBORHOODS C AND D, PARCEL 209-45 <br /> CALIFORNIA DECEMBER 23, 2010 <br /> SOURCE:SAIC,06111f2008AND$ANJOAQUINCOUNTY ASSESSOR'S MAP BK.209.45. FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> MONITORING WELL LOCATIONS MW-2 THRU MW-16 AND 801 VAPOR PROBE LOCATON <br /> a SVP-1 BASED ON MID COAST ENGINEERING SURVEY DATED 101209,COORDINATE Mountain HOUSE, Callfornla <br /> SYSTEM US STATE PLAN 1983,CA ZONE 3.BENCHMARK ELEV=62.315 FEET,NAVO 88. <br /> 060222.2010(012)GN-SOOOS JAN 17/2011 <br />