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1 <br />ELECTRICAL POWER CENTER, <br />COMPRESSORS AND CONTROLS <br />INSIDE 8'x10' BUILDING <br />EXISTING PIPE <br />TO OUTFALL 017 — <br />FLOATING SURFACE <br />AERATOR (IOHp) <br />(NOT SHOWN) , <br />EXISTING GATEANEIR <br />STRUCTURE CLOSURE <br />PLATE TO EL. 6826.5 — <br />AIR DIFFUSERS <br />EXISTING POND INFLOW — <br />NEW MINE WATER PUMP <br />(400gpm)(AUTOMATICALLY <br />CONTROLLED BY POND <br />WATER SURFACE)(NOTE 1 <br />COMPRESSORS <br />(TWO, 1/2 Hp) — <br />EL. 6800 <br />I1 <br />NEW PIPE TO EXISTING <br />OUTFALL PIPE <br />POSSIBLE AUTOMATIC <br />ON -LINE IRON <br />ANALYZER <br />GV (2 REQ;D) <br />OUTLET STRUCTURE WITH V -NOTCH WEIR, <br />PRESSURE TRANSDUCER& DATA <br />LOGGER; LOW -LEVEL OUTLET GATE <br />INTERMEDIATE LEVEL <br />DISCHARGE, I.E. 68120 <br />FLOW PLAN <br />NOT TO SCALE <br />LEGEND <br />LOW -LEVEL <br />DISCHARGE <br />PIPE7FRASHRACK <br />I.E. 6806.0 <br />BAFFLE & <br />FLOW WINDOW <br />EXISTING <br />VALVES & <br />FLOW METER <br />EXISTING GATE & <br />WEIR STRUCTURE <br />EXISTING 12' HDPE CLOSURE COMPRESSORS & <br />ELECTRICAL <br />PIPE TO POND PLATE TOP <br />CO IN <br />EL. 6826.5 — 8'x10' D' BULL BUILDING <br />FM <br />FLOW METER <br />ISLUIC <br />GATE VALVE - HAND OPERATED <br />MOV <br />MOTOR OPERATED VALVE <br />I.E. <br />SECOND <br />W.S. <br />WATER SURFACE <br />/GATE <br />POND <br />\ <br />W <br />GRAVITY <br />O <br />OVERFLOW <br />cI <br />EL. 6817.4 <br />OV -1I <br />(NOTE 2) <br />I.E. 6820.0 <br />NEW PIPES & <br />\ <br />VALVE <br />STRUCTURE <br />EMERGENCY <br />48" MANHOLE <br />OVERFLOW <br />I.E. 6825.5 <br />/ <br />I.E. 6822.5 <br />I.E. <br />68190 <br />FLOW PLAN <br />NOT TO SCALE <br />LEGEND <br />LOW -LEVEL <br />DISCHARGE <br />PIPE7FRASHRACK <br />I.E. 6806.0 <br />BAFFLE & <br />FLOW WINDOW <br />EXISTING <br />VALVES & <br />FLOW METER <br />EXISTING GATE & <br />WEIR STRUCTURE <br />EXISTING 12' HDPE CLOSURE COMPRESSORS & <br />ELECTRICAL <br />PIPE TO POND PLATE TOP <br />CO IN <br />EL. 6826.5 — 8'x10' D' BULL BUILDING <br />FM <br />FLOW METER <br />GV <br />GATE VALVE - HAND OPERATED <br />MOV <br />MOTOR OPERATED VALVE <br />I.E. <br />INVERT ELEVATION <br />W.S. <br />WATER SURFACE <br />EXISTING <br />BANK EL. 6828 <br />NEW VALVE <br />STRUCTURE <br />(SO. POND) <br />GRAVITY <br />OVERFLOW <br />PIPE <br />GEOMEMBRANE <br />BAFFLE -POND MID -POINT <br />EXISTING ' \ <br />OUTFALL TO — <br />POND EL. 8829.0 <br />MOV -1 <br />NOTES <br />1. MINE WATER PUMP TO START AUTOMATICALLY WHEN <br />EXISTING POND W.S. EL. 6820 FT MSL IS REACHED AND <br />SHUT OFF WHEN POND W.S. EL 68251S REACHED. <br />2. THE MOTOR - OPERATED FLOW - CONTROL VALVE FROM <br />THE EXISTING POND TO THE SECOND POND WILL BE <br />OPENED AUTOMATICALLY 0 TO 15 HOURS AFTER POND <br />W.S. EL. 6825.0 FT. MSL IS REACHED. VALVE TO CLOSE <br />AUTOMATICALLY WHEN POND W.S. EL. 6820.0 IS REACHED. <br />NEW MINE WATER PUMP <br />(400gpm)(AUTOMATICALLV <br />CONTROLLED BY POND <br />WATER SURFACE) <br />MAX. W.S� \ <br />EL. 6825 <br />NEW <br />PIPE <br />I.E. <br />AIR DIFFUSER SYSTEM 6820 <br />(VERTEX AIR 3 SYSTEMS OR EXISTING POND <br />EQUAL) (SEE SHEET M1) <br />LE. 6876 (CLEANED) <br />'( } MTERMEDIATE LEVEL <br />DISCHARGE PIPE, I.E. 6812.0 <br />DISCHA <br />V, V PPE (NW CORNER) <br />14707 V <br />FLOW PROFILE <br />NOT TO SCALE <br />a k <br />ISSUE FOR CONSTRUCTION I EGO I JHR <br />ENVIROGROUP LIMITED <br />3561 STAGECOACH ROAD, SUITE 205 <br />LONGMONT, CO 80504 <br />PHONE: 720494 -2600 <br />FAX 720494 -2688 <br />RAHE ENGINEERING, INC. <br />1070 YOUNGFIELD STREET <br />GOLDEN, CO 80401 <br />PHONE: 303 -238 -1690 <br />FAX 303- 2334683 <br />I.E. <br />6819 <br />6812 <br />y <br />" <br />� <br />— EL 6820 <br />OPERATING <br />W.S. EL. 6818 <br />I.E. 6806 <br />NEW LINED POND <br />I.E. 6804 (ENDS) <br />6805 (MIDDLE) <br />MOUNTAIN COAL COMPANY <br />WEST ELK MINE, COLORADO <br />PROJECT: SYLVESTER GULCH 017 MINE <br />WATERTREATMENT SYSTEM <br />SHEET TITLE SHEE' <br />TREATMENT SYSTEM PF1 <br />FLOW PLAN AND PROFILE <br />p�4)e -36? ItIl <br />