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I <br /> EXPLANATION: <br /> B-7 B-8 3 <br /> (<1 0) B-5 Sail Boring/Monitoring Well <br /> �_ <br /> Parking Area B-18 <br /> B-13 <br /> Sad Boring/Vapor Well <br /> B-2 <br /> B-4 B-11 (810 <br /> { ) �' (5300) ) B•9 Soil Boring <br /> <2 0 <br /> W <br /> > <br /> ss• B-13 - Pumping–Test Weil <br /> r— ^ Underground Storage Tanks <br /> � 1 L _ _-J <br /> T1 12,000--Gallon Unleaded <br /> — — — — i / 2AW Gasoline <br /> I ®�os hoop ( 4 7}• ��) T2 12,000–Galton Unleaded <br /> I , o I Gasoline <br /> s ® z <br /> ® 0 ' I <br /> Approximate Limits of <br /> II d � (9 28) � �.� ._._ J c7) Q Tank Pit <br /> Station L _ ®� ———'�� <br /> Building _ <br /> (S 0} ®�® I (530 Concentration Of Total Petroleurn <br /> I 11 $ 9 I 12 { B-5 U Hydrocarbons As Gasoline (TPHg) <br /> ®(�)� (<1)®� ®� Q1900)*§q (<2) In Parts Per Million (ppm) <br /> 40I I T2 I ®�� I f,,*B 12 U o0 <br /> Line Of Equal Concentration Of <br /> ( <br /> I 2 0) Q ���5 Total Petroleum Hydrocarbons <br /> 13 " s � }' As TPH In Parts Per Mit€on <br /> 1015 > (Ppm) <br /> I � f s I➢ ��®� Ifl � n � <br /> Sod Sample Location <br /> L _ _ ^ (TPHg/Benzene) <br /> 1 ® 17 0 �18 <br /> B-10 ( 2 S---19–LINE 2 <br /> g.g ®0 1 8 °(�) e �(2 4} 2A 5-19–LINE 2A <br /> '$(<1 0) B 1 N',,d 9 S-18–LINE 9 <br /> (<2 0) B-3 11 S-19-N (<1/00)) <br /> (<2 0) 12 S-22–G {(1900/84) <br /> 13 S-17–L (<1/<01) \I <br /> 14 S-18–P (1400/24) n <br /> Driveway Sidewalk 15 S-22–H (<1/<01) <br /> Sidewalk 16 S-1 7–K (1 8/<01) <br /> 17 S-20–J (<1/<01) <br /> MARCH LANE 18 S-22–I (2 4/0 2) <br /> Source- Map modified from site plan 20 0 20 40 <br /> provided by Unocal and Monitoring <br /> wells surveyed by Toni 0. Morrow, Inc Appro Imate Scale (feet) <br /> MF CONCENTRATION OF TPH9 IN SOIL (15-25 FEET) PLATE <br /> vt��u Unocal Service Station No. 8987 <br /> 4707 Pacific Avenue 8 <br /> PROJECT N0. 38032 8032J°sc Stockton, California <br />