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~'R(3Gr -~2-~7-a <br />Revised (199 Estimate of Annual Use and Evaporative <br />I.oes of Sur[ace Waters DiscLarged From Trapper Mine <br />• Assume annual evaporative loss is 24 inches. <br />• 32 existing small sediment poems average 0.68 acres <br />surface area at high water mark = 32 •0.68 ac • 2' = 43.52 ac-ft <br />• Coyote Dam ®high water mark = 1 • 12.00 ac • 2' =24.00 ac-ft <br />• Proposed Oak Gulch sediment ponds (TR-67) = 2.0.40 ac • 2' = I.60 ac-ft <br />• Future life-of-mine sediment ponds 14.0.68 ac • 2' = 19.04 ac-ft <br />• Existing Stock Poems (73) ®average .13 ac 73 •0.13 ac • 2' = 18.98 ac-ft <br />• Future lifeof-min stock ponds (27) = 27 •0.13 ac • 2' = 7.02 ac-ft <br />Total = 114.16 ac-ft <br />Average annual water quantity Total = 76.27 ac-ft <br />• used for mad watering <br />Total Estimated Depletion 114.16 ac-ft <br />76.27 ac-ft <br />190.43 ac-ft <br />• Assume 1096 of pit water originates from surface runoff. <br />• Average annual Trapper well dewateting = 32.52 ac-ft <br />• Average annual Trapper pit dewatering = 30.58 • .9 = 27.52 ac- <br />Total augmentation 60.04 ac-ft <br />Total Adjusted Depletion due to Minine 190.43 ac-ft <br />- 60.04 ac-ft <br />130.39 ac-ft <br />` ' [~~ucoz[ `;EVISION A?PROVED <br />~~~ATE Y-3a-9S--- I <br />I "" 59 CmQ-isZ ~_---- <br />( 12/~y3/9 G1 <br />