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-40 65 —40 70 —40 75% --40 80, --40 aS -40 90 —4095 —4100 <br /> - so Nib <br /> EXPLANATION: <br /> (--40 23) �8-7/ % MW-7 5 <br /> -405 <br /> 5% <br /> B-5/MW-5 <br /> Soil Boring/Monitoring Well <br /> Parking Area (Applied ystms1990 <br /> ) <br /> ► B-13/VW--4 <br /> -40 50' +► Soil Boring/Vapor Well <br /> ti <br /> B-4/MW-4 <br /> 3 r -,71 Underground Storage Tanks <br /> % �►8-13/ L ----J T1• 12,000-Gallon Unleaded <br /> o <br /> -4045; B_ <br /> 1/ B-2 W-2*I Gasoline <br /> T2: 12,000-Gallon Unleaded <br /> 40.93) ► ' I Gasoline <br /> -" - ►� `� W L - Approximate Limits of <br /> LJ Tank Pit <br /> —4040% I I <br /> w (-40 J3) Elevation Of Ground Water; <br /> I I Datum Is Mean Sea Level <br /> I <br /> Station —4035 L _ _ _ _ -- - � Q Line Of Equal Elevation <br /> Building I- = r- = --i `I - ; —4025 ® Of Ground Water; Datum <br /> (-4084) i Is Mean Sea Leve! <br /> � B-6/ I I 1 [ I �B-5/MW-5 U <br /> VW-1I I 1 f LL_ Of Ground-Water <br /> -4a 3o <br /> o I I I I I B112/ Flow As Evaluated By <br /> -30 RESNA <br /> I I I Q (March 9, 1992) <br /> I I I I i = Evaluated Gradient <br /> i = 0.010 to 0.013 <br /> -40 2% I I I I o <br /> L - T J J <br /> B-10/ <br /> MW-81 1 g-1/M W_1 ' <br /> i s (-40 52 <br /> (-402,3) >� ) ; ► -3/MW-3 <br /> *(-40 82) <br /> ► j ► <br /> Sidewalk Driveway Sidewalk <br /> N <br /> MARCH LANE <br /> Source: Map modified from site plan 20 0 20 40 <br /> provided by Unocal and Monitoring <br /> wells surveyed by Tom 0. Morrow, Inc. Approximate Scale (feet) <br /> . � POTENTIOMETRIC MAP (March 9, 1992) PLATE <br /> /i,FM�� Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue i 22 <br /> FILE NO <br /> PROJECT NO. 38032 8032G1 3A Stockton, California I <br />