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I <br /> EXPLANATIOR <br /> x <br /> B-80 B-5* Soil Boring/Monitoring Well <br /> B-7 (<1 0) <br /> -0_ n <br /> B-13� <br />� � Soil Bong/Vapor well <br /> Parking Area B-18 <br /> B-•g Soil Boring <br /> B=2 Pumping-Test Well <br /> B-4 1 (810) <br />' <br /> ( (5300) <br /> (<2 0) i ! ani Proposed Soil Boring/Vapor Well <br /> /��r��o.�..� B-13 <br /> �.� _ Underground Storage Tanks <br /> "1 ♦ (<1 0) <br /> J*®i ``-��—���� r T1 12,000-Gallon Unleaded <br /> L——J Gasoline <br /> — r— — 4- ®® _ — — _ — — — T2 12,000-Gallon Unleaded <br /> r 0 '�`/ Gasoline <br /> A / 0 Z • �-II<2 <br /> ® $ ��! �Z ( 4 )� I r Approximate Limas of <br /> / Z L — Tank Pit <br />` F (1726) Estimated Vapor-Extraction Area <br /> Station — 9 — — ,/ — — — J (7) Of Influence <br /> Building B-g <br /> (<1-0+ <br /> � 0)- ®�® I1j I % U (5300 Concentration Of Total Petroleum <br /> k ! B-5 _ Hydrocarbons As Gasoline (TPHg) <br /> 1�}� (��) 12 <br /> Ij 1 0900)• (<2) In Parts Per Million (ppm) <br /> I / <br /> t �'� � ®41 4 Line Of Equal Concentration Of <br /> B--12 <br /> (2 0} 5 Total Petroleum Hydrocarbons <br /> 13 ®®/14 ® e As (TPHg) in Parts Per Million <br /> (1400�0'`� 101 ) (pom) <br /> ' J <br /> ® ca 18 Soil Sample Location <br /> L_.01 _i �4�� <br /> L _ (TPrig/Benzene) <br /> 16 0 17 4 181 2 S-19-LINE 2 <br /> B-10 B•9 � ®�(1 8 o(<1) ®(2 4)� - 2A S-19-LINE 2A <br /> *(<1 0) B-1 �,s 9 S-18- <br /> 9 <br /> (<2 0) 10 S-1 7-M <1 <01) <br /> B-3 11 S-19-N <1/01) <br /> (<2 0) 12 S--22-G (1900/84) <br /> 13 S-17-L (<1/<O 1) 'f <br /> 14 S-18-P (1400/24) n <br /> Dr l eway Sidewalk 15 S-22-H (<1/<01) <br /> Sidewalk 16 S-17--K (18/<O1) <br /> 17S--20-J (<1/<01) <br /> MARCH LANE 18 S-22-1 (2 4/0 2) <br /> 20 0 20 40 <br /> Source Map modified from site plan <br /> provided by Unocal and Monitoring `.� �� Appro lmate Scale (feet) <br /> wells surveyed by Tom 0 Morrow, Inc <br /> PROPOSED SHALLOW VAPOR-EXTRACTION WELL LOCATIONS AND PLATE <br /> AREA OFINFLUENCE <br /> unocai Service Station No. 6981 15 <br /> 4707 Pacific Avenue <br /> FILE NO <br /> PROJECT NO. 38032 1 8032J10A Stockton California <br />