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11 Apr 03 <br /> N EXPLANATION <br /> MW-5 VICTOR RpAD Groundwater monitoring well <br /> 4.33 * Groundwater monitoring/extraction well <br /> W_ <br /> (<0 50) Planter Piezometer <br /> (0 8l) <br /> Dispenser Island Groundwater elevation contour in feet <br /> referenced to mean sea level(ft msl) <br /> �0 esw;45 well <br /> s (typ) ` Arrows indicate approximate groundwater <br /> 4a4� ;Diesel' MW-6 flow direction <br /> 4.34 3.97 Groundwater elevation in ft mst <br /> UST ; (<0 50) <br /> (<0 50) (<5 0) Benzene concentration in parts per billion <br /> Planter MW_1,� (ppb) <br /> 454 _____' (5,500) MTBE concentration m ppb <br /> (<2 5) anopy <x Not detected at reporting limit x <br /> �—(130) <br /> 4 25–.� *Well MW-1 was gauged and sampled <br /> I March 13,2003-not used in contouring <br /> P-1 MW-2 Approximate hydraulic gradient=0 002 to 0 050 <br /> 421 425 <br /> (<0.50) <br /> (<50) <br /> (200) <br /> ( <br /> Q Gasoline 18,000) <br /> USTs <br /> MW_4 <br /> 420 'P-2 Station <br /> Z (<200) 4.16-' ' Building Former Waste <br /> (49,000) (<10) <br /> � 540) Tank <br /> W �D MW-3+ MW-7 <br /> P� <br /> 14841 q ` 3 97 <br /> (<0 50) 7S __ (<0 50) <br /> (140} 4g0 (5,500) Scale(ft) <br /> X x x x <br /> X x Above-ground 4 ZS ` 0 15 30 60 <br /> X O x Propane Tank 4 <br /> x xQ <br /> X x x x 490_1 <br /> FIGURE <br /> x <br /> Base map from Fug o map dated 07 Dec 95 2 <br /> Lf) <br /> m _j <br /> 01 <br /> Former Shell Service Station/ Groundwater Contour/Chemical <br /> Econo Gas (9Concentration Map 1 <br /> 880 victor Road C A M B R I A <br /> Lodi, California February 19, 2003 <br />