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i <br /> F� EXPLANATION: <br /> 13-7 B-8 3 I <br /> (<1 0) o B-5. + Soil Boring/Monitoring Well <br /> Parking Area <br /> $-18 + <br /> B-13 <br /> Soil Boring/Vapor Well <br /> B-2 <br /> B-4 B-11) (810) v B. Soil Boring <br /> r <br /> (<2 0) (5300 <br /> 3 <br /> a� <br /> . 8-13 L - I Pumping--Test Well <br /> (<1 0) o <br /> Underground Storage Tanks <br /> L —— -i T1 12,000-Gallon Unleaded <br /> —_1(4726) <br /> � 2� j2A W Gasoline <br /> 4 7) `�} T2 12,000-Gallon Unleaded <br /> Gasoline <br /> Ld ai > Approximate Limits of <br /> L -- ( o — -J Tank Pit <br /> Station J <br /> Building _ -- <br /> B-6 ���® <br /> (<I 0) I I � / (5300) Concentration Of Total Petroleum <br /> 10 17 12 1 B-5 Hydrocarbons As Gasoline (TPHg) <br /> (<1)ID 1190010 q (<2) I In Parts Per Million (ppm) <br /> I T2 Vri I <br /> IB-12 �"� ODS Line Of Equal Concentration Of <br /> I 1 I �� Azv! (2 0) Q ���5 Total Petroleum Hydrocarbons <br /> 13 <br /> {� I/,®(1400) �p", (<1 3 As (TPHg) In Parts Per Million <br /> llj <br /> 1i1 I <br /> 10 <br /> L L_*01 J%%Q,„Le® ` 180 Soil Sample Location <br /> - .�40e — <br /> (TPHg/Benzene) <br /> B-10 6-9 ` o(16 8 t7 �18 2 S-19-LINE 2 <br /> <1 0 • { 1) (2 4) 2A S-19--LINE 2A <br /> { ) B-1 N.00 9 S-18-LINE 9 <br /> {<2 0) B-3 10 S-17-M d/<0 1) <br /> (<2 0)� + 11 S-1 9-N <1/0 1) <br /> 77 <br /> 12 S-22-G (1900/84) <br /> l 13 S-17-L (<1/<0 1) <br /> Driveway Sidewalk 14 S-18-P (1400/24) <br /> Sidewalk 15 S-22--H (<1/<01) <br /> 16 S-1 7-K (1 8/<O1) <br /> 17 S-20-J (<1/<01) <br /> MARCH LANE 18 S-22-1 (2 4/0 2) <br /> Source. Map modified from site plan 20 0 20 40 <br /> provided by Unocal and Monitoring <br /> 7 <br /> wells surveyed by Tom 0. Morrow, Inc Appro r imate Scale (feet) <br /> CONCENTRATION OF TPHg IN SOIL (15-25 FEET) PLATE <br /> t��A Unocal Service Station No. 0981 <br /> 4707 Pacific Avenue <br /> 11 <br /> PROJECT NO. 38032 8032,1a6C Stockton, California <br /> } <br />