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---PAGE BREAK--- ♦ ♦ # ---PAGE BREAK--- % ) % 0 % ---PAGE BREAK--- ♦ $ 234-- 5- 6 # ---PAGE BREAK--- 8 0 0 100 200 300 400 500 600 700 [PHONE REDACTED] 1100 0 10 20 30 40 50 60 River Miles from Vista EC (microSiemens) April 2001 (41cfs) February, 1979 (65 cfs) Enter Pyramid Lake Derby Dam Wadsworth Gage S-S Gauge Dead Ox Truckee River Truckee Canal Fernley ---PAGE BREAK--- 0 ---PAGE BREAK--- Section # Seepage Rate (acre-ft/yr) 1 1270 2 440 3 1810 4 50 5 6900 6 710 Total: 11,180 1 2 3 4 5 6 ---PAGE BREAK--- New well Production Well ---PAGE BREAK--- 0 100 200 300 400 500 [PHONE REDACTED] 1992 1994 1996 1998 2000 2002 2004 Date TDS Concentration (ppm) 0 10 20 30 40 50 60 70 80 Arsenic Concentration (ppb) TDS (ppm) Arsenic (ppb) ---PAGE BREAK--- Arsenic Concentration ---PAGE BREAK--- Natural Recharge = 7,300 acre-ft/year (25%) Anthropogenic Recharge = 22,800 acre-ft/year (75%) Fernley Irrigation Losses 6,900 Wadsworth Irrigation Losses 1,900 Leakage from Truckee Canal 14,000 Natural Recharge from Pah Rah Range 3,600 Natural Recharge from Virginia Range 2,000 Natural Recharge from Truckee Range 1,700 Total: 30,100 Fernley Groundwater Pumping 6,800 Fernley Sink Evapotranspiratioin 6,600 Truckee River 12,000 Interbasin Groundwater Flow 4,700 Total: 30,100 INPUTS (acre-ft/year) OUTPUTS (acre-ft/yr) Virginia Range Truckee Range Pah Rah Range Fernley Wadsworth Truckee River Truckee Canal Fernley Sink ---PAGE BREAK--- Surface Topography Water Levels Geologic Model Bedrock Surface ---PAGE BREAK--- ---PAGE BREAK--- With Canal Without Canal ---PAGE BREAK--- " 50 year capture zones for City of Fernley supply wells. Blue line represents canal not in operation. Red line represents canal in operation. ---PAGE BREAK--- % # # % # 77 potential well locations Poor quality water shown in red ---PAGE BREAK--- 90 70 50 30 10 Probability ---PAGE BREAK--- 0 4 90 70 50 30 10 Probability ---PAGE BREAK--- 0 94 90 70 50 30 10 Probability Canal No Canal ---PAGE BREAK--- 0 90 70 50 30 10 Probability Canal No Canal ---PAGE BREAK--- 0 9,4 90 70 50 30 10 Probability Canal No Canal ---PAGE BREAK--- ♦ $ 24< 6 9,34-- ; ---PAGE BREAK--- 0 ! 6 # ---PAGE BREAK--- $ 6 $ ! 0 ---PAGE BREAK--- ♦ #