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s <br />PRIMARY DISCHAI <br />M <br />u <br />U <br />N <br />U <br />O <br />m <br />U <br />U <br />u <br />O <br />O <br />00 <br />ELEVATIONS <br />DESCRIPTION <br />ELEVATION FT <br />TOP OF EMBANKMENT <br />7160.0' <br />EMERGENCY SPILL. INVERT <br />7158.0' <br />PRIMARY SPILL. INVERT <br />7155.8' <br />PERFORATIONS INVERT <br />7154.0' <br />GATE VALVE INVERT <br />7150.7' <br />7124.6' <br />PRIMARY DISCHARGE INVERT <br />7160 <br />7158 <br />7156 <br />J <br />f� <br />u <br />z 7154 <br />Q <br />w <br />w 7152 <br />7150 <br />7148 <br />0.00 4.00 8.00 12.00 16.00 20.00 24.00 <br />ACCUMULATIVE STORAGE (ac —ft) <br />12" <br />C.M.P. <br />RISER WITH TRASH RACK <br />3 EACH, 4" PERFORATIONS <br />12" GATE VALVE <br />EMERGENCY SPILLWAY <br />DESCRIPTION <br />DIMENSION FT <br />TOP WIDTH <br />21 <br />BOTTOM WIDTH <br />15 <br />SIDE SLOPES <br />1.5:1 1.5:1 <br />S`iAGE STORAGE CURVE <br />WAREHOUSE POND <br />EMBANKMENT <br />7158.0) <br />Permit Number #: C- 1981 -019 <br />Class: Permit <br />Section /Exhib cl._ - - - - <br />it : <br />15' --I <br />'L.', / I EMERGENCY SPILLWAY �•, <br />�lT OFF COLLARS <br />r� <br />PROFESSIONAL ENGINEERS CERTIFICiJION <br />I, STEPHEN R. HINKEMEYER, being o <br />Registered Professional Engineer in <br />the State of Colorado, do hereby <br />certify that this map has been <br />reviewed by me and is true and <br />correct to the best of my knowledc,a <br />and information relying on <br />information supplied by experts <br />identified in section 2.03.3 of the <br />Colowyo Coal Company L.P. 1997 Permit <br />Renewal. <br />12 %.M.P. <br />NO SCALE <br />RECEIVED j <br />APR 2 7 1998 11 <br />I <br />Division of Minerals & Geology <br />, ; WAREHOUSE POND 002 <br />PROPOSED PLAN <br />SCALE: 1' =40' <br />DATE: 4 22/gR <br />p® Kennecott DRING. BY: T F S In I <br />O(1 % ij Energy APPRO:IED BY: <br />Coloryo Cod Company LP. <br />DRWG N0. I <br />