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LEGEND <br /> MW-21 I <br /> 0 MONITORING WELL LOCATION 670-1 <br /> I <br /> (ND) I <br /> A SOIL VAPOR PROBE LOCATION ,(ND) I ! <br /> I(ND)1 ' <br /> FORMER PIPELINES-APPROXIMATE LOCATION - -' T <br /> ---------------------PROPOSED DEVELOPMENT <br /> -——— —-PARCEL BOUNDARIES <br /> OEXCAVATION FOOTPRINT <br /> v <br /> 74.02 GROUNDWATER ELEVATION RELATIVE <br /> TO FEET MEAN SEA LEVEL(R MSL) <br /> (ND) TPH AS CRUDE OIL,CONCENTRATION IN <br /> MICROGRAMS PER LITER(yg/L) AREA 3 i <br /> (ND) TPH AS DIESEL,CONCENTRATION IN y9ll I Y� \p/ 'yp <br /> (ND) BENZENE CONCENTRATION IN yg/L 1 ' hoJ. 0� 6 � ' <br /> —67.20— GROUNDWATER ELEVATION CONfl TOUR, / 2p (ND) I ' <br /> IN MSL AREA 4 (ND) <br /> ND NOT DETECTED y / <br /> r <br /> i cD MW-5 I ) <br /> NS NOT SAMPLED <br /> MW-3 <br /> (ND) MWS ______________________________________________ <br /> WELL NOT USED IN CONTOURING DUE Q ; ' 64 59 (NDND <br /> )) C1 R,5 <br /> I <br /> TO INSUFFICIENT WATER (ND) MW T <br /> i (ND o ( 6a O6 INS) I _________________________________________________ <br /> GROUNDWATER FLOW DIRECTION=VARIABLE I (ND <br /> `>: (NO) (NS) <br /> APPROXIMATE HYDRAULIC GRADIENT=0.004 Q i MW 5 (NS) <br /> 64 87 (ND) <br /> LQv'' i (ND) AREAS MW-6 <br /> NEIGHBORHOOD C i 2 1� D� 1 �N�� <br /> (ND) <br /> I <br /> ________________I___ SVP 1 L_____________� <br /> ______ _____ _ ____ <br /> I I <br /> MW 16 6' <br /> 64 <br /> % I I (ND) MW-10 <br /> F:';5 <br /> MW-9 (ND) APN:20950-19 <br /> I 64 36 I (ND) <br /> (ND) Sq (ND) <br /> (ND) ' <br /> I , __________________________________ <br /> _____________________________ _ <br /> AREA 67 <br /> _ ---------------------- <br /> ------------- <br /> _I ____________-___________ <br /> _____________________________________ I <br /> I ___________ ______________, <br /> 0 100 20011 _______ _ -- I <br /> I , <br /> figure 3a <br /> GROUNDWATER CONTOUR AND CHEMICAL CONCENTRATION MAP-AREAS 3-7 <br /> CALIFORNIA NEIGHBORHOODS C AND D, PARCEL 209-45 <br /> SOURDECEMBER 23, 2010 <br /> I-NIT :s" �DD°AND SAN'°A°'"°°D ANDS0f VW0R^°„�D" FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> MONRORINDWELLLOGTIONSGINE RIR SU ANDSDIIVAPORPR00E LO E <br /> SVP-1BASEDAMIDCOASTENGINEERINGSURVEYDATED1p'18g9,COORDINATE Mountain House, Ca/ifomia <br /> SYSTEM US STATE PIAN 198],G ZONE 3.BENCNMARN F1EV=82.715 FEET.tUVD U. <br /> 060222-2010(012)GN-S0004 JAN 2612011 <br />