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7SSep-0D <br /> EXPLANATION <br /> + Groundwater Monitoring Well <br /> Groundwater Recovery Well <br /> Soil Vapor Extraction Well <br /> Groundwater elevation contour in feet <br /> referenced to site datum Arrows <br /> / indicate approximate direction of <br /> groundwater flow <br /> 7783 Groundwater elevation in feet relative <br /> to site datum <br /> NA Not Available <br /> (<O 500) Benzene concentration in ppb <br /> (5 27) MTBE concentration in ppb by EPA <br /> Method 8020 <br /> Approximate Location of <br /> Former Tank Excavation <x Not detected at detection limit x <br /> (<0 5001590,10-Apr-00) date este camp ed concentrations in ppb, <br /> CHANNIEIL STREET <br /> Approximate hydraulic gradient=0 01 <br /> -2 <br /> Sidewalk 7826 RW-1 <br /> (<0.500) 7794 <br /> VIEW-2 (24 2) VEW-3 (<0500) <br /> NA + (<5-00) <br /> NA 1. ¢� <0.500) 1M -4 <br /> ;(<O 500) (<0 500) = 77 88 <br /> MW-5 ' (boo) p (5 2y) <br /> \ � MW-3 (c5 00) b" <br /> 7889 <br /> (<0 500) \ \� 7!l 19 1 � <br /> (2,440) \ ; (<0 500) <br /> (2G 4) - W <br /> 7784 <br /> - - - ------ Oji �� (<0500} O <br /> >� r (19 6) <br /> IV1 W-1 :r Q <br /> VEW-1 7850 <br /> NA (<0.500) O <br /> (<0 5001590,10-Apr-00) (2,100) Q <br /> VEW-0 <br /> NA <br /> Former Waste Former (<0.500) W <br /> Oil TankBuilding =__-===(I,020)====_,, Former <br /> Channel Bulkhead;; Dispenser <br /> (Below) Island <br /> Concrete Deck Parking Area <br /> —N- <br /> Scale FIGURE <br /> 0 15~ 30 60 <br /> Base map from 1~ugro map of 13-Dec-95 <br /> 1 Inch = 30 Feet 2 <br /> City of Stockton RedeveQopment Groundwater Contour/ <br /> Agency Property G Chemical Concentration Map <br /> 141 North EI Dorado Street <br /> Stockton, California C A M B R I A July 27, 2000 <br /> Incident No 97130156 <br />