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71107115712071257130712571207115 711071307130712570957100710571107115712071207115711071057100713071257140712571307135713071357140BB'0+001+001+502+002+503+003+504+004+505+000+000+501+001+502+002+50AA'CC'0+000+200+400+600+80 0+507105 0+000+501+001+502+002+503+003+504+004+505+0071057110711571207125713071357140710571107115712071257130713571400+000+501+001+502+002+5071057110711571207125713071357105711071157120712571307135Section A - A'Section B - B'Section C - C'20'3H:1V0+000+200+400+600+807115712071257130713571157120712571307135AA'BB'CC'3H:1V3H:1V3H:1V3H:1V15.0'EMERGENCY SPILLWAYEL. 7125.0, (TOP OF RIPRAP)EMBANKMENT CREST7130.0EMBANKMENT DETAILSScale 1" = 20'POND BOTTOMEL. 7105.4PRIMARY SPILLWAY WITH ANTI-VORTEX TRASH RACKEL. 7118.0, RISER IS 18" DIA. GALV. STEEL CMPTWO 3" DIA. PERFORATIONS AT EL. 7116.024" Ø GALV STEEL CMP313124" SLIDING GATE VALVE, EL. INVERT 7107.3DOWNSTREAMUPSTREAM710571067107710871097110711171127113711471157116711771187119712071217122712371247125712671277128712971300.001.002.003.004.005.006.007.008.009.00PRINCIPAL SPILLWAY (7118)EMERGENCY SPILLWAY (7125)TOP OF STRUCTURE(7130)Accumulative Storage (Acre-Ft)Elevation MSL <br />Stage Storage CurveSection 36 Pond0Storage Volume ComputationsELEV.(ft)AREA(ac)AVG.AREA(ac)INTERVAL(ft)STORAGE(ac-ft)ACC.STORAGE(ac-ft)STAGEINTERVAL(ft)7105.000.00007106.000.00970.00491.000.00540.00541.007107.000.02470.01721.000.01740.02282.007108.000.03770.03121.000.03080.05363.007109.000.05310.04541.000.04510.09874.007110.000.07480.06391.000.06520.16405.007111.000.09260.08371.000.08380.24776.007112.000.11170.10221.000.10200.34977.007113.000.13160.12161.000.12160.47138.007114.000.15350.14251.000.14270.61409.007115.000.17770.16561.000.16560.779510.007116.000.20450.19111.000.19110.970711.007117.000.23510.21981.000.21971.190412.007118.000.26760.25131.000.25131.441713.007119.000.30060.28411.000.28391.725714.007120.000.34000.32031.000.32112.046815.007121.000.38660.36331.000.36332.410016.007122.000.43340.41001.000.41042.820417.007123.000.48490.45911.000.45943.279818.007124.000.53810.51151.000.51123.791019.007125.000.59900.56851.000.56804.358920.007126.000.66400.63151.000.63354.992521.007127.000.73200.69801.000.69745.689922.007128.000.81340.77271.000.77196.461823.007129.000.91520.86431.000.86567.327424.007130.001.04260.97891.000.98078.308125.00PERFORATION ELEVATION (7116)SNEWContour Interval = 1 Ft.CHKBYDATENo.REVISIONDRWG NO.APPROVED BY:TonyDRWG. BY:4/18/18DATE:As ShownSCALE:Section 36 PondColowyo Coal Company5731 State Highway 13Meeker, Colorado 81641COALCOMPANYSAFETY-PEOPLE-PRODUCTION-ENERGYScale 1" = 20'Scale 1" = 25'Scale 1" = 50'As-BuiltPWFigure 7-23I-2Note: A staff gauge is installed inside the pond near the primary discharge.BCTony3/25/19199Added Staff Gauge NoteMR-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.4/28/22LESTony4/28/22154Revised Drawing NumberTR-