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i I I 1 B \ \� ELEV 7020 7020 � 70,0 7000 6990 LONGITUDINAL 5ECTION OF DIKE 8 - 8 HORIZONTAL 111-20' SCALE: VERTICAL 8� �GONSTRUCTED ELEV = 70200 (TO 4ZIAW,44C00TENTI41_ SETTLEMENT) ELEV 70 O.eOP INLET m15 O' DE5 /6N TDP OF EMBANKAfENT ELEV 70/9. o �' OR/PICE,AILET 70110'- a I I UPSTREAM TOE OF DAM ELEV 70020 ORIGINAL GROUND AT CENTERLINE Y I s i c t 4 I I 51 TE PLAN 7020 70/0 7000 6990 J i t I I a I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I a' 7030 ' 7030 PRINC IPAL AND EMERGENCY SPILLWAY COMBINED M5I • DROP INLET = 24" D,A CMP; /3' H16H TRASH RACK CON6TKVC70 7020 TOP ELEV. 7020 0 • PRINCIPAL SPILLWAY s 6" DIA ORIF /CE 7020 DESIGN 70P - V190 DROP INLET 70/50_ 3 1 /� EMERGENCY SPILLWAY = 24� D,A CMP l /5' LONG, 2% SLOPE MAXIMUM WATER ELEV, = 70/3 6 �ID YR -24 NR� 3 3 _ ELEV = M110 ORIFICE INLET 70 //O APPROX /MATE 3 YEARS 5E0144EN7 STORAGE i WATERT16HT ✓OINT5 70/0 7RAbg RACK i � II I �(4 J 5'X5' ANT /SEEP COLLARS 2-1. GRADE ELEV 6999 7 7000 7000 BOTTOM ELEV 7W740 ELEV 70020 �\ 2 2- - - -- ��- flPRAR Ire �• 0 4' MIN. KEYCUT 6990 MIN OR INTO BEDROCK 6990 I I I I , GENERAL NOTES: 1. CONSTRUCTION TO BE COMPLETED BEFORE DISTURBING UPSTREAM DRAINAGE AREA. 2. PONDS AND DAMS CONSTRUCTED AFTER MAY 3, 1978 TO BE DESIGNED, INSPECTED AND CERTIFIED BY A REGISTERED PROFESSIONAL ENGINEER. 3. ALL ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL. 4. SAVE TOPSOIL FOR PLACEMENT ON STOCKPILES OR RESPREADING ON SLOPES. 5. SEED ALL DISTURBED AREAS, FILLS AND CUTS. 6. ALL PONDS AND DAMS TO BE EXAMINED FOR STRUCTURAL WEAKNESS, EROSION AND OTHER HAZARDOUS CONDITIONS, AS PER APPROVED PLAN. 7. SEDIMENT TO BE REMOVED IF IT FILLS TO WITHIN 40% REMAINING SEDIMENT STORAGE OF THE POND SEDIMENT DESIGN CAPACITY. 8. ALL PONDS SUBJECT TO REVISION - SITE STUDIES AND MORE DETAILED ANALYSES THROUGHOUT LIFE -OF -MINE TO BE REFLECTED IN POND DESIGN. 9. THE FILL MATERIAL SHALL BE FREE OF SOD, LARGE ROOTS, OTHER LARGE VEGETATION MATTER AND FROZEN SOIL, AND IN NO CASE SHALL COAL- PROCESSING WASTE BE USED IN EMBANKMENT CONSTRUCTION. THE FILL MATERIAL SHALL CONSIST OF SELECT IMPERVIOUS MATERIAL. 10. THE PLACING AND SPREADING OF ALL FILL MATERIAL SHALL BE STARTED AT THE LOWEST POINT OF THE FOUNDATION. THE FILL SHALL BE BROUGHT UP IN HORIZONTAL LAYERS OF SUCH THICKNESS AS TO ALLOW FOR A MINIMUM COMPACTION OF 93% OF THE STANDARD PROCTOR. C9055 SECTION A -A' HORIZONTAL / " =20' SCALE: VERTICAL I" = /0' ' kt , AREA CAPACITY TABLE Elevation Qt.) I Stage (ft. ) I Acre (act I Capacity (ac -ft.) I Total Capacity (ac. -ft. 7019 - - - TOP OF E,MBANKNENT 7018 16 2.80 5.21 19.99 7016 14 2.41 2.32 14.78 7015 13 2.23 2.14 12.41; EMERGENCY SPILLWAY 7014 12 2.05 5.28 10.32 7011 91 1.43 1.39 5.04 PRINCIPAL SPILLWAY 7010 81 1.32 2.01 3.65 7008 61 0.69 1.04 1.64 7006 4 0.35 0.47 0.26 7004 21. 0.12 0.13 0.13 7002 0) 0.01 0 0 BOTTOM OF POND vri No nr I wiffill�=WIVA a loll VIA I I 51 TE PLAN 7020 70/0 7000 6990 J i t I I a I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I a' 7030 ' 7030 PRINC IPAL AND EMERGENCY SPILLWAY COMBINED M5I • DROP INLET = 24" D,A CMP; /3' H16H TRASH RACK CON6TKVC70 7020 TOP ELEV. 7020 0 • PRINCIPAL SPILLWAY s 6" DIA ORIF /CE 7020 DESIGN 70P - V190 DROP INLET 70/50_ 3 1 /� EMERGENCY SPILLWAY = 24� D,A CMP l /5' LONG, 2% SLOPE MAXIMUM WATER ELEV, = 70/3 6 �ID YR -24 NR� 3 3 _ ELEV = M110 ORIFICE INLET 70 //O APPROX /MATE 3 YEARS 5E0144EN7 STORAGE i WATERT16HT ✓OINT5 70/0 7RAbg RACK i � II I �(4 J 5'X5' ANT /SEEP COLLARS 2-1. GRADE ELEV 6999 7 7000 7000 BOTTOM ELEV 7W740 ELEV 70020 �\ 2 2- - - -- ��- flPRAR Ire �• 0 4' MIN. KEYCUT 6990 MIN OR INTO BEDROCK 6990 I I I I , GENERAL NOTES: 1. CONSTRUCTION TO BE COMPLETED BEFORE DISTURBING UPSTREAM DRAINAGE AREA. 2. PONDS AND DAMS CONSTRUCTED AFTER MAY 3, 1978 TO BE DESIGNED, INSPECTED AND CERTIFIED BY A REGISTERED PROFESSIONAL ENGINEER. 3. ALL ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL. 4. SAVE TOPSOIL FOR PLACEMENT ON STOCKPILES OR RESPREADING ON SLOPES. 5. SEED ALL DISTURBED AREAS, FILLS AND CUTS. 6. ALL PONDS AND DAMS TO BE EXAMINED FOR STRUCTURAL WEAKNESS, EROSION AND OTHER HAZARDOUS CONDITIONS, AS PER APPROVED PLAN. 7. SEDIMENT TO BE REMOVED IF IT FILLS TO WITHIN 40% REMAINING SEDIMENT STORAGE OF THE POND SEDIMENT DESIGN CAPACITY. 8. ALL PONDS SUBJECT TO REVISION - SITE STUDIES AND MORE DETAILED ANALYSES THROUGHOUT LIFE -OF -MINE TO BE REFLECTED IN POND DESIGN. 9. THE FILL MATERIAL SHALL BE FREE OF SOD, LARGE ROOTS, OTHER LARGE VEGETATION MATTER AND FROZEN SOIL, AND IN NO CASE SHALL COAL- PROCESSING WASTE BE USED IN EMBANKMENT CONSTRUCTION. THE FILL MATERIAL SHALL CONSIST OF SELECT IMPERVIOUS MATERIAL. 10. THE PLACING AND SPREADING OF ALL FILL MATERIAL SHALL BE STARTED AT THE LOWEST POINT OF THE FOUNDATION. THE FILL SHALL BE BROUGHT UP IN HORIZONTAL LAYERS OF SUCH THICKNESS AS TO ALLOW FOR A MINIMUM COMPACTION OF 93% OF THE STANDARD PROCTOR. C9055 SECTION A -A' HORIZONTAL / " =20' SCALE: VERTICAL I" = /0' ' kt , AREA CAPACITY TABLE Elevation Qt.) I Stage (ft. ) I Acre (act I Capacity (ac -ft.) I Total Capacity (ac. -ft. 7019 - - - TOP OF E,MBANKNENT 7018 16 2.80 5.21 19.99 7016 14 2.41 2.32 14.78 7015 13 2.23 2.14 12.41; EMERGENCY SPILLWAY 7014 12 2.05 5.28 10.32 7011 91 1.43 1.39 5.04 PRINCIPAL SPILLWAY 7010 81 1.32 2.01 3.65 7008 61 0.69 1.04 1.64 7006 4 0.35 0.47 0.26 7004 21. 0.12 0.13 0.13 7002 0) 0.01 0 0 BOTTOM OF POND 1 r Il j 1 I Permut Number* C- 1980 -005 Class Permit Section /Exhibit. a REDEIVED APR 0 81987 MiNEu wtiL) RECLAMATION DIVISION EXHIBIT "7 -17" SEDIMENT POND # 008 1 i ■