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Michelle L. Hatcher <br />8/13/2007 <br />TABLE A -COMBINED REPLACEMENT PLAN SITES <br />Paget <br />Site Name DMG # Ex osed S ~iface acres <br />Howe Pit M-78-052 26.6 acres current) ex osed - 26.6 ex osed re-81 <br />Tanabe Pit M-00-002 3.0 to 4.0 <br />Dunes Develo ment M-99-093 8.2 <br />Mann lakes M-82-147 10 to 15 <br />Ft. Lu ton Pit M-85-088 4:0 <br />Riverbend O eration M-00-016 0:0 <br />Sta ecoach Sto Pro ert M-83-067 0:3 <br />Depletions 4.. <br />The total annual losses resulting from evaporation, water lost in product, dust control and <br />concrete hatching are shown in the following table: <br />TABLE B -LOSSES <br />Site Name Evaporation <br />Losses <br />ac-ft Lost in <br />Product <br />ac-ft Dust <br />Control <br />ac-ft <br /> <br />' Concrete <br />Batching <br />ac-ft Total <br />(ac-ft) <br />Howe Pit 0 13.3 34.4 I ' 44.2 91.9 <br />Tanabe Pit 0.9 0 0 I ' 0 0.9 <br />Dunes Develo ment 9.0 0 0 0 9 <br />Mann Lakes 28.7 8.0 12.8 I 0 49.5 <br />Ft. Lu ton Pit 11.8 0 0 0 11.8 <br />Riverbend O eration 0 0 0 1 0 0 <br />Sta ecoach Sto Pro a 2.8 0 1.5 I 0 4.3 <br />TOTAL 53.2 21.3 4B.7 I 44.2 167.4 <br />A slurry wall has been installed around the Stagecoach Stop <br />be sealed from the tributary groundwater. All process water for the <br />will be pumped from well no. 63864-F which is located inside the mii <br />outside of the slurry wall. The water from the well will be pumped in <br />inside the slurry wall lined pit. The SWSP request assumes that the <br />consumed. The Tanabe Pit liner was approved in a letter dated FeE <br />The mining sites are set back from the river, therefore, the di <br />operations were not assumed to be instantaneous. Operational and <br />the site were lagged to the stream system using a Glover analysis ai <br />shown below: <br />Property so that the site will <br />ifagecoach Stop Property <br />ing permit boundary but <br />o a small lined wash pond <br />process water is 100°h <br />wary 2, 2007. <br />p)etions from the <br />evaporative depletions at <br />id the aquifer parameters <br />Site Name X ft W ft T d/ft S ecific Yield <br />Howe Pit 350 12000 45000 0.2 <br />Tanabe Pit 4200 6700 1115000 0.2 <br />Dunes Develo ment 2800 6700 1115000 0.2 <br />Mann Lakes 400 4450 45000 0.2 <br />Sta ecoach Sto Pro ert 200 15000 45000 0.2 <br />Ft. Lu ton Pit Stream De letion Factor of 300 da s was used <br />X-distance from well to river <br />W-distance from the aquifer boundary through the well to the river channel <br />T-transmissivity of the alluvial aquifer (in gallons per foot/day) between the well and the river <br />