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12-Jan-03 <br /> L f2. C\1O <br /> EXPLANATION O <br /> Ln <br /> Shell groundwater monitoring well O O <br /> Tosco groundwater monitoring well <br /> W-]0 MW-9 <br /> Mi <br /> -10.64 -10.74 Destroyed Tosco groundwater monitoring well � <br /> (<0.50) (<0.50) Groundwater elevation contour in feet O qy Z <br /> (<2.0) (14) S-6 referenced to mean sea level (ft msl). Arrows ,0 <br /> -10,77 indicate approximate groundwater flow C O <br /> 8-5 � (<0.50/<5.0, 18-Feb-02)♦ direction. C V <br /> -1 <br /> ELMWOOD AVENUE (<O.S0/2,-10. 18-Feb-02) �ti. -8.36 Groundwater elevation in ft msl L <br /> la <br /> (<0.50) Benzene concentration in parts per billion(ppb) 00 <br /> -� (<5.0) MTBE concentration in ppb O <br /> (<0.50/<5.0, 18-Feb-02) Benzene/MTBE concentrations in <br /> ippb,date last sampled V <br /> <x Not detected at reporting limit x <br /> Waste Oil APN APN APN <br /> UST 113-042-2 NA Not available <br /> � Auto � W 113-042-1 113-042-3 <br /> i Auto Service <br /> M ;;i- Approximate hydraulic gradient=0.0001 <br /> -13.75 <br /> Service *Not used in contouring <br /> 01 1 -10.49 (72) <br /> (<0.50) <br /> Forme h, 0'- (3.4) i con S-3 APN <br /> UST Pit -10.65 113-042-4 <br /> MW-4 <br /> �a a MW-7 (<0.50) Q <br /> -10.64 <br /> (<0.50) f Dispenser ��- 10.57 (<�) <br /> A� Cie(150) Islands MW-3#(<50) <br /> 1 -10.96 (<200) ® m <br /> Tosco Station _ i (<120) 1 FFormer J Former Waste 0 <br /> I (<500) UST Pit Oil UST Q <br /> Kiosk L——— -J 1— 1 S-z U <br /> FormerS_2 Former USTs I 1 -10.73 <br /> � 1-01 Dispenser -10.57 1 I (<0.50) <br /> � � Islands (4.2) <br /> ❑� USTs { (Typ. of 3) (250} job <br /> J �` Former Bank of APN APN <br /> i -2 —— the West Branch <br /> a 777-- 113-042-14 113-04213 <br /> � 1 1 <br /> Dispenser 1 m <br /> I Fortner UST <br /> Mme'-6 Islands —— FormerForer Shell Service Station <br /> �/ I — <br /> -10.39 MW-1 <br /> (<0.50)— — — — — — — - — —"10.46 +S-4 <br /> �------- ------- (95) (<2.5)-- -10.44 = <br /> (<IO) (<0.50) Sidewalk O <br /> (<5.0) � <br /> COUNTRY CLUB BOULEVARD N <br /> v '2 <br /> � a <br /> N o <br /> co <br /> MW-8 <br /> -10.39 U o <br /> (<0.50) Cn Scale(ft) ? <br /> (<2.0) --- — --t FIGURE (D o <br /> 0 20 40 80 EU <br /> i n C.0 <br /> )a LL" N u) <br /> m <br /> 0 <br />