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07-Oct-04 <br /> R Location of Municipal Wells Relative to Site I N 'Z: CL o <br /> N well s 2,550 a O 04C <br /> Well 2 1(x50 ft a-+ - <br /> i <br /> (Desiroyea) N .0 <br /> • _N_ a.. m <br /> V 16. M �� + n <br /> Well 4-1 700 ft (D—,\ 4.. 3 ` <br /> Well 7 300 It 5 <br /> W E W E v C <br /> Scale(ft) _ __ 2 <br /> r �-MW-3- Proper LAne — T , Well. ft 1 1400 O 0 <br /> 3533 1 ' (, s` ' s O V 0 <br /> 0 20 40 80 �;+ I— cc <br /> (<O 50/<0 50,08-Apr-04) z ck <br /> MW-5B U <br /> 3535 = O <br /> <0.50 S ,CD .0 <br /> Den Dulk Well MNN-54 <br /> sj EW-1 Groundwater Flow Direction <br /> 5 15 rtanter 3543 ; 2000 to 3004 <br /> <0.50 Note Due to an incorrect survey data point, <br /> _ <0 50 1 quarters 3Q02 through 1Q03 have been <br /> car ® r USTs, EW-2 <br /> removed from the Rose Diagram <br /> Washianon <br /> Dispenser® w 3536 <br /> Islands t <0.50 f hi4�-6AMW-6B <br /> M W-2 <br /> 35.37 i 353S ® p - - <0.50 j , 3549 <br /> (<0 50/<0 50,08-Apr-04) ® <0 50 <br /> p <br /> o >� <br /> ® MND 4A <0 50 <br /> MW-1*35.73MW-4B f Q <br /> - --`-- < <br /> Sidewalk ('2 41,6 8,01-Jul-04)' <0.50 <br /> J 1.6 m <br /> EAST MAIN S7 REET EXPLANATION Q <br /> MW-1* Groundwater monitoring well U <br /> MW-5A,B + Dual completion monitoring well <br /> MW-1 Existing groundwater monitoring well <br /> Groundwaterproductlon well <br /> on adjacent site <br /> 0- Destroyed well <br /> - <br /> rrapercyLtne— i EW-1 + 4"Monitoring/Extraction Well <br /> NA Not sampled due to insufficient water <br /> CHEVRON MW 1 A - Product dispenser number <br /> Q Groundwater elevation contour in feet <br /> FACILITY <br /> referenced to mean sea level(ft msl) 1= <br /> i Arrows indicate approximate ground- O <br /> i <br /> Dispenser water flow direction <br /> Islands a, <br /> ON Well designation 4-+ <br /> RES TA URANT �- y -* '4$ Groundwater elevation,ft ms] <br /> �- Caltrans Well Benzene concentrations in ground <br /> s�iaong Proposed MW-4 ; ; <2005 <br /> water in parts per billion(ppb) <br /> USTr ( MTBE concentrations in ground- <br /> `LocanOns <br /> i, O i O water in ppb N <br /> C-n (<0 0/<0 50, 8-Apr-O ) BenzenelMTBE <br /> Former <br /> / --� concentrations,date last <br /> UST. sampled Z3 cn <br /> Loc... sampled <br /> <x Not detected at reporting limit x o <br /> � � <br /> Ss \\MW .3 i * ell MW-1 was not used In contouring FIGURE ro <br /> i b cause water in sldual(less than 6lnches)l appears to be W 6 <br /> 9 p <br /> N Approxi ate hydraulic gradient=0 005 2 <br /> co M Cr <br /> 0 <br />