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1 IT � to LEGEND NOTES STAR STREET Flag City Chevron Ground water monitoring data collected on 27 December 2004 from Flag City Chevron wells _109 A M-8B Ground Water gooind wa Well elevation Location �i -I1I 70 with reported ground venter elevation MW-8B, MW-8A, MW-9A, MW-10B, MW-11A, MW-12B, MW-13B, MW-14, MW-17, MW-19D do MW-20B, and from -1813 Q 4 Three B a Truck Plaza 9B's Truck Plaza wells MW-7A, MW-BH, MW-9A, MW-108, MW-11B do MW-12B -I ii, � Ground inter monitoring well location All Flag City Chevron monitoring wells resurveyed on 10 June 2004 r, with reported ground water elevation A Ground water elevations relative to National Geodic Survey Datum C 484 (NAVDBS) ' pp �}' -110 Ground water elevation contour line Ground water elevations of SECOND ZONE ground water (40 ft to 80 ft) Q All units reported as feet relative to mean sea level m Domestic Drinking Water Well Location b Z a 1 La o A ® Existing Building structure 0 V ` 0 /it Inferred ground water flow direction z » Pa !1 and gradient CQ ' CANT L4T r � a a vA Rose Diagram Showing Frequency of I X S Historical Ground Water Flow Direction d, �19B V-4 at Three H s Fortner Tank Pit Area o 46 N � X208 U W A -150 W d A 813 Rosa Diagram Showing Historical Ground -147 _1701 Water now Direction and Gradient at 70 r Flag City Chevron Tank Pit area W .', Blue arrows indicate data collected before O d, start of ground water pump-and--trent. p z Z o Red Arrows indicate data collected attar 0 J Z 9A ` 06 start-up of ground water pump-and-treat t— r-i 43 -132 N 0 oRN`�0N x_14 \ E '-4 _1 s7 �� o of a d 0ooB i 0 008 N .''. TW pe B e lL-1.34 i p -4 0 004 a + 6 0 —130 0 002 E cliloP`l 0 1\ 1 to D "UV-813 \ N23 S UV- —�it -- 7A N s —F� m up�izB _i 12 t �p�118 ��p 92 _110 i 0