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07-Mar-03 <br /> Location of Municipal Wells Relative to Site N O O N <br /> N Well 8-2,550 ft 1r <br /> Well 2-1,650 ft O ~ <br /> (Destroyed) 0 0 N ca <br /> —N— <br /> V _OCCU <br /> Cc <br /> Well 4.1,700 ft <br /> L *.A C <br /> We117-1300 ft <br /> W E W El �: (.) 0 <br /> MW-3 'a = O <br /> Scale(ft) _..33.89 ------- ----- 2 = O O <br /> I —� Property Line :/+ Well I-1,4Wft U L <br /> 1 <br /> I Planmr NA ". (Destroyed) <br /> 0 20 40 80i NA !i O 0 <br /> MW-5B M <br /> 37.4$ � •� Cc <br /> L <br /> s� A <0.50 <br /> Den Dulk Well i <0.50 V <br /> Planter ro Groundwater Flow Direction <br /> i <br /> / 2Q00 to 1Q03 <br /> ------------------- <br /> 1 <br /> � ® USTs i <br /> car I i Loeation EW-2 i <br /> wash 37.99 i <br /> Dispenser <0.50 r 6B <br /> Islands <br /> Islands 1 38.18 <br /> MW-2 ® 0 -----------------` 1.9 <br /> 37.8 NA ® ® �l- 4��J <O.SO <br /> MW-4B i EW-1 <br /> NAI— —._.._ rMw-1 PI.- � 38.01 � Q <br /> Sidewalk 37.93 37.99 ���""------- <0.50 — <br /> <0.50 <0.50 <0.50 <br /> <0.50 <0.50 EXPLANATION M <br /> EASTMAIN STREETM'�-1+ Groundwater monitoring well Z> <br /> MW-SAB Dual completion monitoring well <br /> { U <br /> MW!X + Existing groundwater monitoring Well <br /> 1 <br /> Groundwater production well <br /> on adjacent site <br /> Destroyed well <br /> EW_� 4"Monitoring/Extraction Well <br /> NA Not sampled due to insufficient water <br /> Property Line <br /> i <br /> MW-1 of Product dispenser number <br /> CHEVRON <br /> FACILITY c...ro � Groundwater elevation contour in feet <br /> referenced to mean sea level(ft msl). O <br /> Arrows indicated approximate ground- O <br /> Dispenser water flow direction. (C <br /> Islands a ' <br /> RESTAURANT �, y �,, Well designation N <br /> Bladon I Caltrans Well -41B�Groundwater elevation,ft msl. <br /> Building MW-4 ^�' 31..99 <br /> Benzene concentrations in ground <br /> Proposed L <i�.50 water in parts per billion(ppb). •i <br /> %~ UST <br /> <(�.SO <br /> -` <br /> ^`,Locations j C v �MTBE concentrations in ground- O <br /> water in ppb <br /> Former I \ < Not detected at reporting limit x N <br /> �: - i UST I� I I Cn . <br /> ,\ N <br /> Locations <br /> i Approximate Hydraulic Gradient= 0.04 = c <br /> fj fC ��.- i ii .� O <br /> ` -----`--- I FIGURE +, cq <br /> \W- I i d UJ o <br /> k � 3 <br /> oMCZrV <br /> m <br /> 0 <br />