Laserfiche WebLink
r <br />1 <br />i 1 <br />i <br />r <br />1 <br />i <br />1 � r <br />I <br />I <br />/ I <br />Ill % <br />1 <br />r <br />i <br />1/ <br />i <br />rr <br />i <br />I <br />1 <br />WEST TAYLOR POND - PLAN VIEW N <br />Scale 1" = 50' W E <br />S <br />7500 <br />7470 <br />7440 <br />0 0 0 <br />o <br />0 0 0 <br />PROFILE THROUGH EMBANKMENT CENTERLINE <br />SCALE 111 =50' <br />7530 <br />7530 <br />7500 <br />AREA <br />(Acres) <br />AVERAGE AREA <br />(Acres) <br />7500 <br />INCREMENTAL <br />CUMULATIVE <br />j <br />(Acre -Feet) <br />(Acre -Feet) <br />7455 <br />0.0202 <br />Exh. 7, Item 20 <br />5]31 SC b�pighT 13 <br />laeeker, Co= e1w1 <br />0 <br />\�� <br />_ <br />0.28 <br />7470 <br />7460 <br />0.0928 <br />7470 <br />PR -2 <br />0.28 <br />1117107 <br />7440 <br />0.75 <br />PR -2 <br />7440 <br />O Cl) <br />pp <br />!p <br />OOi N h <br />7 <br />OTHER EDITS BASED ON REVISED SEDCAD CALCS. <br />0.3013 <br />1.51 <br />7470 <br />0.3963 <br />N N <br />PROFILE THROUGH IMPOUNDMENT <br />SCALE 1'1 =50' <br />N VQ1 CO 'OR <br />O w r N N <br />R/PRAP PROTECTION AND <br />24' PARSHALL FLUME AS SPECIFIED <br />7 L ENGINEER <br />rA7rl] <br />7470 <br />1A <br />O M O O Nt N c <br />N C7 Sh Cl) CO a <f 7 111 O <br />EMBANKMENT DETAILS <br />Scale T" = 20' <br />18'0 GALV STEEL CMP, 14 GAUGE MINIMUM, <br />2-213'X 112" HELICALLY CORRUGATED, POLYMER COATED <br />AT 2.0%SLOPE <br />Construction Notes: <br />1. Premining Topography shown has been supplemented with one foot contour data based field survey <br />data collected by- & Associates during the Fall of 2006 using GPS methods. <br />2. See Map 41A for general location and associated drainage areas. <br />3. Embankment to be constructed of compacted fill using materials specifed by field engineer. Refer to <br />to Exhibit 7, Item 20, Part F for Geotechnical Information and compaction specifications. Figure 3 of <br />that document contains requirements for site preparation, fill materials, placement requirements, and <br />monitoring. <br />4. Hatched area of the spillway and oatlet section along groin shall be nprapped with 18 inch median <br />size material. <br />AREA- CAPACITY TABLE <br />ELEVATION <br />(Feet) <br />AREA <br />(Acres) <br />AVERAGE AREA <br />(Acres) <br />CAPACITY <br />INCREMENTAL <br />CUMULATIVE <br />DRWG. BY.1117J2Tp <br />(Acre -Feet) <br />(Acre -Feet) <br />7455 <br />0.0202 <br />Exh. 7, Item 20 <br />5]31 SC b�pighT 13 <br />laeeker, Co= e1w1 <br />0 <br />0.0565 <br />0.28 <br />7460 <br />0.0928 <br />HK <br />PR -2 <br />0.28 <br />1117107 <br />0.1496 <br />0.75 <br />PR -2 <br />7465 <br />0.2063 <br />TCP <br />TAT <br />1.03 <br />OTHER EDITS BASED ON REVISED SEDCAD CALCS. <br />0.3013 <br />1.51 <br />7470 <br />0.3963 <br />2.54 <br />0.4969 <br />2.48 <br />7475 <br />0.5976 <br />5.02 <br />0.6198 <br />0.62 <br />7476 <br />0.6420 <br />5.64 <br />TOTAL CAPACITY 5.64 ACRE -FEET <br />1150 <br />8 <br />h O <br />EARTHWORK QUANTITIES (APPROX. EXCLUDING KEYWAY) <br />CUT: 2,100 CU YD. <br />FILL: 5,500 CU YD <br />ELBl NKMENTCREST <br />EL. 7487.0 - WALKWAY 42' HANDRAILS AS SPECIFIED <br />EMERGENCY SPILLWAY <br />EL.,7478.0 <br />L <br />PRINCIPAL SPILLWAY WITH NCRS ANTI- VORTEX TRASH RACK <br />EL. 7471.0 p <br />I ELW 7468 OA(LPEWRF TPEFFORA7RON)�ATION AS SPECIFIED <br />2 <br />0 NORMAL POOL <br />EL. 7468.0 <br />18' WATERMAN C -20 SLIDING GATE VALVE, EL. INVERT 7459.0 <br />�i- -ONE YEAR SEDIMENT ACCUMULATION, EL 7459.39 <br />POND BOTTOM <br />ORIG. GROUND EL 7455.0 <br />ANT /SEEP COLLARS 6 FT /MIN) EL. 7456.0 <br />FOUR REQUIRED ON 20 F7 CENTERS <br />8 FT WIDE (MIN) KEYWAY6 FT (MIN) IN DEPTH WITH 1H:1V SIDES <br />EXTENDING ACROSS ENTIRE ABUTMENT <br />ENGINEERS CERTIFICATION <br />I, THOMAS C. PETERSON, being a <br />Licensed 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 knowledge <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. Permit. <br />0�t`Pp uL�/ <br />,,.....,� Fy cif <br />.* c. Pe 'P <br />32257 ' <br />�Ap�13//b/b7- w` <br />4 F ......... •��� <br />S c4�'JA <br />W <br />RECEIVED <br />AvK09NO <br />0ivM . <br />Mining and sagely <br />WEST TAYLOR <br />POND DESIGN <br />RIO <br />Zvi' [ -r��a(( <br />SCALE: �No�e <br />TINTO <br />__ <br />DRWG. BY.1117J2Tp <br />APPROVED BY: <br />ENERGY <br />DRWG NO. <br />AMERICA <br />Exh. 7, Item 20 <br />5]31 SC b�pighT 13 <br />laeeker, Co= e1w1 <br />Figure 1 C -3 <br />No. <br />REVISION <br />DATE <br />BY <br />HK <br />PR -2 <br />ADDED AS NEW FIGURE <br />1117107 <br />TCP <br />TAT <br />PR -2 <br />EDIT TO NOTE AND SED. YIELD PER REVIEW COMMENT <br />3116107 <br />TCP <br />TAT <br />OTHER EDITS BASED ON REVISED SEDCAD CALCS. <br />Page Exh. 7 -20C -4 <br />