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POSTMINING LAND USE IS " RANGELAND " <br />0 <br />F � <br />6� <br />I <br />N <br />I <br />\ )1 A <br />LEGEND <br />\ 1 �� <br />PERMIT BOUNDARY <br />POSTMINING CONTOUR <br />DRAINAGE BOUNDARY <br />TIE -IN BOUNDARY FOR POST MINING TOPOGRAPHY <br />APPROXIMATE LIMIT, PERMANENT FILL BOUNDARY <br />SEDIMENT POND <br />SECONDARY DRAINAGE <br />DESIGN DITCH /CHANNEL <br />TERRACE DITCH WITH FLOW DIRECTION ARROW (ON OR ACROSS PERMANENT FILL AREAS) <br />•J POSTMINING STOCKPOND (STOCK TANK) EXISTING <br />• POSTMINING STOCKPOND (STOCK TANK) PROPOSED <br />1OV, <br />W <br />S <br />E <br />50Y 0 500 1000' <br />CONTOUR INTERVAL 25 FT. <br />Norwest PMT ST022307 <br />1 <br />: >oo <br />� <br />i <br />_ <br />0 <br />5 <br />l <br />V <br />, <br />20 <br />15 <br />5 / <br />�\ 0 <br />1 POND <br />1 <br />,71 ) <br />/720 <br />ENGINEER'S CERTIFICATION <br />1, 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 work <br />performed by others, including Norwest <br />Corporation's volumetric calculations and <br />optimized PMT study, and based on <br />information supplied by experts <br />identified in section 2.03.3 of the <br />Colowyo Coe/ Company L.P. Permit. <br />���� pR •• •• / CF '���i <br />V : r .�0 <br />32257 o • <br />THOMAS C PETERSON <br />P.E. No. 32257 <br />(oh $ /07 <br />i <br />i <br />t <br />WATERSHED BOUNDARIES FOR <br />HYDROLOGIC MODELING <br />to South Ta for Area <br />N � vQP SCALE: 1" = 500 <br />RIO DATE: 5!26106 <br />0` DRWG. BY TCP/ESI <br />0;ec TINTO APPROVED BY. <br />ENERGY DRWG NO. <br />AMERICA <br />°°W° MAP 41 A <br />5131 ,C Highway13 <br />Meeka�, C°loatlo 81801 <br />No. REVISION DATE BY HK <br />PR -2 Updated with South Taylor Areas. 5119106 TCP TAT <br />Added secon ary ramage networ wi egen its. <br />PR -2 Modified pit shell for landslide area and associated ditch 0212107 TCP TAT <br />cnges based on review comments, pond & stockpond <br />e its. <br />PR 2 Modified postmine topography in central portion of Sec. 17, 03/23/07 TCP TAT <br />associated drainage changes on fill, extended Sec. 28 <br />Collector ditch, added lateral drains on fill & areas above, <br />labeled secondery drains a channels <br />MR -90 Permit Boundary Update 10108107 TAT TAT <br />N: 1CCC_ ENG\ Dwgs1D _PermitslCunentMine'0_Pen6ngWIR 90 (Permit Boundary Maps)Wlap 4 1A.Awg, Potted by Firestone v <br />