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20-May-02 <br /> Q N <br /> EXPLANATION v M N <br /> E Cd <br /> Shell groundwater monitoring well G <br /> MW-10 ¢ Tosco groundwater monitoring well V +-- � <br /> -7.80 �f Destroyed Tosco groundwater monitoring well 4" � <br /> LL <br /> (<0.50) Groundwater elevation contour in feet O d <br /> (<2.0) referenced to mean sea level (ft msl). Arrows C v <br /> indicate approximate groundwater flow V O <br /> MW-9 # direction. V <br /> -8.07ELMWOOD AVENUE _6 -8.36 Groundwater elevation in ft msl +� <br /> (<0.50) »8.3 (<0.50) Benzene concentration in parts per billion(ppb) �p <br /> (2.7) (<0.50) 'a <br /> 5-5 (<S.0) (<5.0) MTB$concentration in ppb = <br /> <X Not detected at reporting limit x <br /> 0 <br /> I <br /> (<0.50) Approximate hydraulic gradient 0.02 to 0.07 O� <br /> F. T� <br /> (2,600) 0 <br /> I Waste Oil 14W-11— I APN <br /> UST ��- _10.74 APN 113-042-4 <br /> Auto (<0.50) ` APN 113-042-3 <br /> IService (310) 113-042-1 APN <br /> Service V44444�� <br /> Auto <br /> 113-042-2 <br /> O -7.75 <br /> I <br /> (<0.50) »zo x <br /> (<2.0) S-3 <br /> W -8.09 <br /> MW-4 MW--- -9 (<0.50) Q <br /> Former -7.717.89 (c5.0) <br /> UST Pit (<0.50) Dispenser (11) I — <br /> (55) <br /> Islands 1�y-3 (800) <br /> 1 -7.88 m <br /> �+ r——— 1 (:2) I r J Former Waste <br /> i —— i (460) Former _ Oil UST <br /> —�j '*�t <br /> UST Pit <br /> i x{iosk L————j1 —I g.y U <br /> S-2� I' I -8.b6 <br /> Former -7.96 (23) <br /> Dispenser I <br /> (15) ormer USTs (<5-0) <br /> p Cd UD I Islands (750) <br /> 3 <br /> Typ.of 3) Former Bank ofAPN APN <br /> ` <br /> i U -2 �r——� — the West Branch -8 113-042-14 11,3-042-13 <br /> MW-6 I I I <br /> ! -7.60 Dispenser <br /> Former Shell Service Station <br /> (<0.50) IslandMW-1 <br /> �---•-- ------. .. (<2.0)----- ------------------------ -7.80 I <br /> *S-4 <br /> -7.92 <br /> (5.4) (<0.50) Sidewalk O <br /> 4-0 <br /> (<5.0) <br /> COUNTRY CLUB BOULEVARD v <br /> Nc0 <br /> > > <br /> L- (D <br /> 4) E5 <br /> co o <br /> m cu <br /> MW-8 <br /> -7.63 ,= U <br /> (<0.50) Scale(f#) V1 Z'a <br /> (<2•0) FIGURE i' 15- ()U <br /> O <br /> 0 20 40 80 � � (-) -0 <br /> 0 (00 <br /> a.. <br /> U. ti � <br /> v r Cn <br /> rn <br /> O <br />