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• r. <br /> -U-44 EXPLANATION <br /> Groundwater monitoring well <br /> Approximate Property Boundary —1932 <br /> — — -- -- -� in Vapor Extraction Well <br /> —1921 a-a u-4 <br /> \ Former I" <br /> Waste Oil99 99 Groundwater elevation 1n feet <br /> I ForAr Tank Former I W referenced to mean Sea Level <br /> Slatto Dispenser (MSL) <br /> Budding Island�'e-i <br /> ' N g9 Groundwater elevation contour, <br /> I \ <br /> -1905 I 'g9 dashed where inferred <br /> I Former Former Underground <br /> \ Storage Tank Site <br /> Waste Oil <br /> I Tank \ \ ���~ u- <br /> I U-8 \ 4 Former U-3 U-e <br /> Dispenser y <br /> 18 (0 Islands UV-1 I - 19 14 <br /> Former <br /> Underground \ U_2* —1$ 90 I `19 00) <br /> Storage Tanks \ —1892 <br /> -~ '�-► <br /> `ro <br /> � _Ny <br /> EAST MINER AVENUE Approximate groundwater 1 <br /> flow direction at a <br /> gradient of 002 to 0 006 Ft/Ft 0 40 <br /> Scale to Feet <br /> U-7 <br /> —18 18 souks Fagots Iladdud From Dmerarutg Prondod <br /> Parking k , f ey uPDs Sen W <br /> POTENTIOMETRIC MAP FIGURE <br /> Gettler - Ryan InC. Former Unocal Service Station No 0187 <br /> 6747 Sierra Cl, Suite J (925) 551-7555 437 East Miner Avenuezi 1 <br /> Dublin, CA 94568 Stockton, California <br /> JOB NUMBER RED BY DATE REVISED DATE <br /> EVIEW <br /> 280045 February 13 1998 <br />