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19-J u I-01 <br /> Q. 4 <br /> O <br /> O n N <br /> EXPLANATION C r- <br /> 0 O <br /> Groundwater monitoring well <br /> i <br /> yGroundwater elevation contour in feet -W C <br /> referenced to mean sea level (ft msl). Arrows cc 4) <br /> / indicate approximate groundwater flow <br /> direction. C O <br /> OOD AVENUE -5.67 Groundwater elevation in ft msl O V <br /> £'LMNV - (110) Benzene concentration in parts per billion (ppb) 0- V <br /> S-5 ♦ (243) MTBE concentration in ppb <br /> -7.75 <br /> NS S-6 Q <br /> -7.78 <x Not detected at detection limit x <br /> # NS <br /> NS Not sampled V <br /> Approximate hydraulic gradient=0.001 <br /> W Note: All analyses by EPA Method 8260 <br /> APN <br /> APN 113-042-4 <br /> W <br /> 113-042-3 <br /> d" <br /> {� APN APN \ <br /> � 113-042-1 113-042-2 <br /> C64 — <br /> �_ oc <br /> S-3 <br /> -7.61 m <br /> \ (<0.50) o <br /> (<S.0) !, Q <br /> B P/76 <br /> \ Former Waste (� <br /> Service Station Oil UST 01 S-1 <br /> APN <br /> -7.68 <br /> 123-232-46 S-2 (18) <br /> -7.50 - - - - _ <br /> (21) Fortner USTs 1> (�0) <br /> (270) - .moo <br /> Former Bank of APN APN <br /> I j the West Branch } 113-042-14 113-042-13 <br /> Former UST;--+__�� , , — <br /> L <br /> - —-— — -- -- - - �- S 4 _ —-_ �_ _ - L - - -i- - O <br /> ---7.47 - - - Sidewalk <br /> cs <br /> (<s 0) N <br /> v � <br /> ca <br /> COUNTRY CLUB BOULEVARD <br /> 4 <br /> � m° <br /> � � c <br /> U o <br /> N U) �� <br /> Scale(ft) FIGURE o <br /> 0 24 40 80 <br /> U o <br /> c O N O <br /> o <br /> ILL .- U} <br />