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i <br /> 1 1 <br /> LEGEND (VIW-2I <br /> 1 1 , <br /> • MONITORING WELL LOCATION 67.09 I F <br /> (ND) 1 i <br /> I I { <br /> A SOIL VAPOR PROBE LOCATION {(ND) 1 1 <br /> _ ... ..-.. FORMER PIPELINES-APPROXIMATE LOCATION ""i HO <br /> ---------------------PROPOSED DEVELOPMENT - - O <br /> _; j <br /> - — -- -- — -- -- -PARCEL BOUNDARIES O <br /> EXCAVATION FOOTPRINT F I '1 0(b- I i <br /> 74.02 GROUNDWATER ELEVATION RELATIVE 1 1 S I I 1 <br /> TO FEET MEAN SEA LEVEL(ft MSL) <br /> (ND) TPH AS CRUDE OIL,CONCENTRATION IN ; j .q° <br /> MICROGRAMS PER LITER(pg/L) AREA 3 iF O i i <br /> (ND) TPH AS DIESEL,CONCENTRATION IN pg/L +' j �O Ot � MW-4 ; <br /> (ND) BENZENE CONCENTRATION IN p97L �' j (' Oh N 45 I i 1 <br /> —67.20— GROUNDWATER ELEVATION CONTOUR, AREA 4 �a (ND) I 1 1 <br /> IN ft MSL , j <br /> ND NOT DETECTED rF f 'i �4j ,f MW-5 I F <br /> J ® 64.38 I I <br /> NS NOT SAMPLED MW-3 (ND) MW-6 --------------------- -------------------------- <br /> (ND) <br /> 61.80 ' <br /> WELL NOT USED IN CONTOURING DUE � �' 64.59 o MW-7 � I <br /> ' ' (ND) M (ND) 64,08 (NS) ; t------------------------------------------------- <br /> TO INSUFFICIENT WATER f (ND) I- (ND) (NS) ' <br /> GROUNDWATER FLOW DIRECTION=VARIABLE � ; I ; (ND) MW-15 (ND) (NS) � E <br /> � ; 1 <br /> APPROXIMATE HYDRAULIC GRADIENT W 0.004 (ND) <br /> 64.62 � <br /> •f (ND) AREA 5 MW-8 <br /> (ND) 63.99 <br /> NEIGHBORHOOD G (ND) (ND) <br /> W ' (ND) i <br /> C5 ( (ND) I <br /> ' SVP-1 ' <br /> 1 -- _ <br /> ' <br /> 1 i ----- <br /> 1 <br /> ------------------- <br /> 1 {. <br /> I + I 1 MW-16 6) ; I <br /> 64,81 <br /> i I (ND) <br /> (ND) 1 ; <br /> MW-10 ; <br /> I ' I (ND) 64.05 i <br /> MW-9 (ND) i i APN:209-450-19 <br /> i 3 64.38 I (ND) i <br /> IG ND <br /> (ND) Q ( ) i { <br /> (ND) �p ) <br /> I (ND) ` __-� =----------------- ----------------------- <br /> iLi ------------------------------ ------------------- -"� -� AREA 617 __ -----r__ <br /> I --.'_ ` L-------------------- •_. . _ --- --' i------------------------- <br /> ---------------------- <br /> - ----�----------------^_.__-__ <br /> �----- ._...-_..__-.�...-__--_ ,. <br /> , -------- <br /> 1 1 <br /> 0 100 20011 _-__--_�--------' __-_._• _••_.___ i- c i, i <br /> ' 1 <br /> I ` <br /> 1 <br /> figure 3a <br /> GROUNDWATER CONTOUR AND CHEMICAL CONC.ENTRATON MAP - AREAS 3 - 7 <br /> NEIGHBORHOODS C AND D, PARCEL 209-45 <br /> CALIFORNIA DECEMBER 23, 2010 <br /> SOURCE:SA€C,0811112008 AND SAN JOAQUINCOUNTY ASSESSORS MAP BK.209.45. FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> C MON€TORING WELL LOCATIONS MW-2 THRU MW-18 AND SOIL VAPOR PROBE LOCATON Mountain House California <br /> SVP-1 BASED ON MID COAST ENGINEERING SURVEY DATED 10128109,COORDINATE <br /> SYSTEM US STATE PLAN 1983,CA ZONE 3.BENCHMARK ELEV T 62.315 FEET,NAVD 88. <br /> 060222-2010(012)GWSO004 JAN 2612011 <br />