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7220721072157230722572407245724072257230721572107220721072157215722572157210722072557250RiprapD50 = 12"0+250+00A'0+000+500+751+001+251+501+752+002+252+502+753+003+253+440+000+250+500+751+001+251+501+752+002+252+502+753+003+253+503+754+004+254+504+755+005+250+250+40ABB'C'C723572350+000+250+500+751+001+251+501+752+002+252+502+753+003+253+503+754+004+254+504+755+005+257205721072157220722572357245720572107215722072257230723572453H:1VSection A - A'Pond Bottom0+000+250+500+751+001+251+501+752+002+252+502+753+003+253+50720572107215722072257230723572407245725072557260720572107215722072257230723572407245725072557260723072407240Section B - B'3H:1VAA'BB'Pond Bottom3H:1V3H:1V0+000+050+100+150+200+250+300+350+40721572177219722172237225721572177219722172237225Section C - C'20'3H:1V3H:1VCC'721072117212721372147215721672177218721901234567891011EMERGENCY SPILLWAY (7217)TOP OF STRUCTURE(7219)Accumulative Storage (Acre-Ft)Elevation MSL <br />Stage Storage CurveCoal Stockpile PondStorage Volume ComputationsELEV.(ft)AREA(ac)AVG.AREA(ac)INTERVAL(ft)STORAGE(ac-ft)ACC.STORAGE(ac-ft)STAGEINTERVAL(ft)7210.000.77947211.000.85970.81961.000.81960.81961.007212.000.92830.89401.000.89391.71352.007213.001.00710.96771.000.96732.68073.007214.001.09021.04871.001.04833.72904.007215.001.17491.13261.001.13214.86115.007216.001.26791.22141.001.22066.08176.007217.001.39021.32901.001.32807.40987.007218.001.51261.45141.001.45048.86018.007219.001.63241.57251.001.575410.43559.00SNEWContour Interval = 1 Ft.CHKBYDATENo.REVISIONDRWG NO.APPROVED BY:TonyDRWG. BY:4/18/18DATE:As ShownSCALE:Coal Stockpile PondColowyo Coal Company5731 State Highway 13Meeker, Colorado 81641COALCOMPANYSAFETY-PEOPLE-PRODUCTION-ENERGYScale 1" = 20'Scale 1" = 5'Scale 1" = 50'As-BuiltPWFigure 7-26M-1LESTony4/28/22154Revised Figure NumberTR-I, LEE E. SAMPSON, hereby certify that this map has been reviewed by me and is trueand correct to the best of my knowledge andinformation, relying on information suppliedby experts employed by Colowyo Coal Company or qualified consultants working for Colowyo Coal Company, and that I am aProfessional Engineer licensed in Colorado asrequired by the provisions of C.R.S. 12-25-101 through C.R.S. 12-25-119. IN ENGINEERS CERTIFICATIONWITNESS WHEREOF, I have hereunder set my hand and affixed my seal.4/28/22