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....... ------ ------ <br /> CENTRAL AVENUE EXPLANATION <br /> -- — ---__ __----- �M �� - - µ ♦ Groundwater monitoring well <br /> 9999 Groundwater elevation in feet <br /> �— <br /> - - - -- - - - <br /> _. - - - - -— , ._ , ..... _.... ._ - - -._ , ,_.., ._.. _... ._.. _.. — �_-1 referenced to Mean Sea Level <br /> I Former 39 76♦ I � (MSL) <br /> Underground <br /> 9 <br /> Groundwater elevation contour, <br /> Storage <br /> Tanks ,` I Underground /9Former99 dashed where inferred <br /> Storage Tanks <br /> I <br /> #U-a <br /> c° <br /> Concrete 3976 <br /> I Island , <br /> Canopy Farmer C-0 11 <br /> o Station W Approximate groundwater <br /> E I Building " U-Z x W flow direction at a <br /> ♦ cc gradient of 0 004 Fl/Ft <br /> I <br /> 39 81 11 y <br /> ♦0-3 <br /> 3999 I <br /> I Former I E <br /> Waste Oil <br /> I Tank <br /> Former/ I ; <br /> Dispenser <br /> I Island I I <br /> I I —Z <br /> I <br /> I Asphalt <br /> I Patch I I <br /> fl zo <br /> L — — — —. — — � Approximate Properly Boundary — <br /> source Figaro WOW From Dr" ProAded Scale in Feet <br /> By WPDS Services,Inc <br /> POTENTIOMlETRIC MAP FIGURE <br /> Oehler - Ryan Inc. Former Unocal Service Station No 0123 <br /> 6747 sierra CL, suite J (925) 551-7555 1034 Central Avenue 1 <br /> Dubin, CA 94568Trac , ni <br /> Califora DATE REVISED DATE <br /> JOB NUMBER REVIEWED 9Y <br /> 280047 March 23 1998 <br />