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MW-io x Former <br /> Former Station <br /> Waste Oil Budding Target Shopping Center Parking Lot <br /> W Tank # Groundwater monitoring well <br /> 0 Groundwater recovery well <br /> _ Remediation ip <br /> t1 '�<Sydem� Vapor extraction well <br /> a –17 96 �Enclos\ x Abandoned well <br /> MW-8 <br /> i� <br /> 9999 Groundwater elevation in feet <br /> MW-6 X referenced to Mean Sea Level <br /> –1824 <br /> 1 <br /> –1800 1811 / 99' Groundwater elevation contour, <br /> { j MW-1 VW-1 W'4 �� 9 dashed where Inferred <br /> �� X18.23 <br /> �20 , * Discontinued from monitoring/ <br /> /* <br /> Former Undergound : _18 31,,-18 25 r DRY N sampling ram <br /> p ro g <br /> Storage Tanks <br /> MW-9 �rMw+im �W;7 TW18 40 / [99.99] Not used in contouring <br /> � 4 VW-s MW-2 MW-1B /MW-x18146 _18 62 r <br /> –1810 �' u I-18 54L*7-L' <br /> 14 L <br /> e LL LLLL <br /> 1 18 45 [-19 581 MW-11 <br /> Former / –18.96 <br /> Approximate groundwater <br /> _ flow direction at a <br /> 00, gradient of 0 002 to 0 005 Ft./Ft. <br /> 01.60 4 <br /> PACIFIC AVENUE — — — _ 0 60 <br /> p A �18p x MW-12 <br /> Scale In Feet <br /> X MW-15 Source <br /> MW-13 –1890 Well locations based upon survey by Morrow Surveying <br /> Topogrophy based upon field observations <br /> Former facilities based upon Unocal Site Plan <br /> POTENTIOMETRIC MAP RGURE <br /> Gf TTLER - RYAK INC. Former Tosco (Unocal) Service Station #6981 <br /> 6747 Sierra Ct, Suite J 4707 Pacific Avenue 1 <br /> Dublin, CA 94568 (925) 551-7555 Stockton, California <br /> PROJECT NUMBER REVIEWED BY DATE REVISED DATE <br /> 180138 March 20 and 21 2002 <br /> FILE NAME P EnviroTOSCO 6981 002-6981 DWG I Layout Tab Pot <br />