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30 October 2003 <br /> AGE-NC Project No 96-0232 <br />' Page 10 of 15 <br />' The 15 September 2003 ground water elevation data collected from the Flag City Chevron site and <br /> the adjacent Three B's Truck Plaza site were plotted for the informal First Zone, Second Zone, <br /> Secondary Aquifer Zone and Primary Aquifer Zone hydrogeologic units as defined in AGE's Final <br />' Remediation Plan, and are depicted m Figures 4, 5, 6 and 7, respectively <br /> Y <br />' 3 4 1 1 First Zone-Aquifer r <br /> Ground water elevation data collected in the First Zone Aquifer(10 to 35 feet bsg) at the Flag City <br />' Chevron was inferred to have a radially inward flow direction towards a ground water depression <br /> in the area ofFlag City Chevron wells MW-1,MW-2 and MW-4(Figure 4)at groundwater gradients <br /> of 0 005 ft/ft or less The ground water gradient at the Three B's Truck Plaza was inferred to be, <br />' towards the east at hydraulic gradients of 0 002 ft/ft or less <br />' 3 4 1 2 Second Zone Aquifer <br /> Ground water elevation data collected in the Second Zone Aquifer (40 to 60 feet bsg) inferred a <br /> radially-inward ground water flow in the area of Flag City Chevron well MW-6B, net flow is <br /> southwards at ground water gradients of 0 002 ft/ft or less Ground water flow direction at the Three <br /> B's Truck Plaza was inferred to be towards the east-southeast at hydraulic gradients of 0 001 ft/ft <br /> or less (Figure 5) <br />' 3 4 1 3 Secondary Aquifer Zone <br />' Ground water elevation data collected in the Secondary Aquifer Zone(85 to 105 feet bsg) inferred <br /> a radially-inward ground water flow in the area of Flag City Chevron well MW-9B, net flow is <br /> southeasterly at ground water gradients of 0 002 ft/ft or less Ground water flow direction at the <br />' Three B's Truck Plaza was inferred to be towards the east at hydraulic gradients of 0 001 ft/ft or less <br /> (Figure 6) <br /> 3 4 14 Pnmga Aquifer Zone <br /> Ground water flow in the Primary Aquifer Zone (130 to 150 feet bsg) appeared to be towards the <br /> east-southeast at both the Flag City Chevron and Three B's Truck Plaza sites, at hydraulic gradients <br /> of 0 001 ft/ft or less (Figure 7) <br /> Advanced GcoEnvironmental,Inc <br />