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500 <br />FSC <br />North Cresson Mine <br />Schist Island <br />Edge of Pit <br />500 <br />SCALE:ft <br />0SFx1 FD nom] 3.9 AF <br />Operations Basin PG -1 <br />E.0.Pit PostMining <br />{ EMP, <br />.1S v¢e <br />q 9NT1 <br />PG -1 <br />56.6 Acre71 cfs <br />33 ofs 3.9 Acre Feet <br />.A� <br />am. <br />MP008a [5,500SFxl5'D nom] 3.8 AF <br />Operations Basin NC -1 <br />Not Required Post Reclamation <br />End N Cresson Pit , <br />_ Begin SGOSA <br />SGOSPMT <br />s <br />EMP8b <br />FSC <br />Ir <br />EMP008b [9,100SFxl5'D nom] 5.5 AF <br />Operations West Flank of Poverty GI. f <br />and North Cresson t <br />Edge of Pit Post - Reclamation 41 _ \ <br />4P s. <br />, NSGOSA -2 <br />@' 41 Acre 41 cfs <br />/' I r' i 20 cfs 3.1 Ac <br />0 <br />Additional Runoff to EMP007 from - <br />Squaw Gulch and SGOSAExt 5.9 AF <br />Total Runoff for 2 x 10 yr = 15.3 AF ti <br />or 7.6 AF for 10 -yr Flow <br />�Am 8�Capacity 7 Ac Feet _ <br />NC-3 <br />51.5 Acre50 cfs <br />NSGOSA -1 <br />45 Acre 38 cfs <br />19 cfs 2.8 AcreFeet <br />Jr <br />i <br />V <br />IN <br />� EMP7 <br />17 mss' <br />EMP16 [8,500SgFt x15D nom] 5.2 AF <br />A\ - Operations Basins ECWH -2 <br />EMP10 [5,630 SgFt x15'D nom] 3.9 AF and ECOBSA -3 Final Pond <br />Temporary to Serve for OBSA Basin 3, with linkage <br />Development, Not Needed from OBSABasin 1 to EMP14 <br />s1S after Reclamation Edge of Pit <br />Val EMP10 <br />Edge of Pith► <br />oha DWH -4 J 1 <br />7.6 Acre 4.2 cfs - -.�J <br />2.3 ds 0.5 AcFt ..: <br />SUIT <br />7u, <br />i <br />/ Edge of Pit <br />w � <br />mu ac <br />S4 /M <br />- -.._.. �. III/ <br />fill <br />aa.A Edge of Pit <br />,aw NCresson� \ l c <br />EMP8a � 41417.2 Ac s <br />, <br />EMP151 <br />r EMP015 [44,997SF base x15 'D nom] 20.2 AF <br />Operations Basin ECWH -3 & ECOBSA-1 <br />Final Detention for ECOBSA Basin1 t►a /'� -} : I <br />f 40 / <br />Tributary to <br />Mine Area and <br />Diatreme <br />EMP17 Terminal Pond for <br />Development and <br />Post - Reclamation <br />(OBSABasin2), Maximize <br />use of Cameron Ponds <br />and Construct <br />Emergency Spillway <br />Target Size = 11.5 Ac Ft <br />for Development <br />23,000SgFt x1 5'D nom] <br />EMP 16 ECOSA -3 (Total) <br />39 Acre <br />n, <br />�, <br />EC09A3b <br />21.5 A� n.. w <br />01, ' �.... + <br />1 <br />Off`' ECOSA21, � <br />37.8 A. \ <br />Ecomo <br />25.2 Ac <br />ItUbs <br />l <br />w:, <br />ECOBA1c �� EC09AU <br />Edge of Pit -f 55.4 Ac 27.4 Ac <br />ECOSA -1 (Total) <br />120.6 Ac <br />Storm Water Management Area <br />North Cresson and Poverty Gulch <br />Basin <br />NC -3 <br />00 000 <br />EMP -01 <br />3.9AF <br />WH -A <br />ECOSAib <br />37.8 Ac <br />o <br />♦ <br />♦ <br />♦ <br />East Cresson & Wild Horse <br />Basin h_..EClaF Bas1n7 Ch.EC <br />Basin Basin tMr -uso �,hoo�� <br />NSGOSA -1 NSGOSA -2 55AF /y'vd <br />S EMP -016 <br />h.NSG -C Ch.NSG -B Spillway 52AF <br />Am 6 EMP -00 <br />Squaw Ch.NSG- 15.3 <br />Cresson Mine <br />CrippleCreek & Victor Gold Mining Co., Victor CO <br />Mine Life Extension <br />Storm Water Management <br />Post Reclamation and Closure <br />20.3 AF <br />I <br />\ ( <br />v <br />LEGEND <br />Spillway Connection or <br />- <br />Optional Flow Connection <br />_ <br />moll <br />Channel Flow <br />- - -,..- <br />+ <br />Overland Flow <br />�\ <br />Spillway Connection or <br />Optional Flow Connection <br />i viiiiiiiiiatIntedor, Temporary Channel <br />000' <br />that Facilitates Operations <br />Basin Boundary <br />Mine Pit Edge <br />(End of Mine) <br />FSC <br />Final Surface Contours <br />(After Reclamation) <br />PMT <br />Post mining Topography <br />(Pre - Reclamation) <br />fn <br />Basin Discharging to <br />G <br />Mine / Diatreme after Mlnlnc <br />Basin Name <br />Area <br />Ei reA 7 cs <br />f0 charge <br />l o ACreFeet <br />pXjUyrVolm10yrOiseharge <br />henna /Name <br />E M P 17 <br />m <br />100.yr Discharge (ds) <br />fO- yrDiacherge <br />(crs) <br />Basin <br />ECOSA -2 (Total) <br />63 Acre <br />Basin <br />:OSA2 <br />Ch. EC2a <br />Basin <br />Ch.EC2b <br />EMP-017 <br />11.5 AF <br />Area (Acres) <br />Enclosed Basins <br />Draining <br />to Mine or Diatreme <br />G <br />In <br />G <br />sin <br />G <br />Steffens and Associates, Inc. <br />Water Resources - Environmental - Mining Engineering <br />Golden CC 80403 - 303.216.1801 - Faz:303.273.8984 <br />CLIENT: Anglo Gold, NA <br />Alt. Drawing Number I scale. DRAWING NO. <br />Noted ICCVA9 -SAoo <br />I "_L!S &, i vt- AWe) 171 1-oli� <br />