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"s s N 0 �n ws" E ,"sue CUT OR FORM RECTANGULAR EMERGENCY SPILLWAY IN TOP OF WALL 3.5' LONG. \ ELEVATION OF BOTTOM OF SPILLWAY 80.10 o Y (0.3 FT DEEP) `1. y ------ Yg Permit Num ~ ber + Class: moil Section Exhibit: -�� Class - -��G� CLEAN OUT �- �� 8.5' MINIMUM TO CENTER RUNS OF RR TRACK, - j Revision _may-, ._ - -jl �ocClass:pRepolip Hytlro pGenera(- _._. _. ___ -_ -_. _ -_ TYDe: I - - - _ - _ - - pAPPlication (Coal onl _ -___ __ _________ --------------- - - - - - - = 12 Y) p Bontl ❑Enforcement ❑I- - - -_- / CHAIN LINK FENCE INV ELEV = 6077.50 ° / \ 12" •_ -- + SEE DRAWING N0. 1 -E) • Y # FOR ELEVATIONS VT I I 10' 30' n' GALVANIZED STEEL SHEET PILING - - -- ------------- 2.5' ---------- ._________________________ 3/4- EXPANSION ___ ___ _ 8" PVC FROM TRENCH DRAIN - - -- IN LINE SHOWN ON PLAN VIEW SEE POND PLANS AND (SEDIMENT TRAP 6" PVC FROM TOP OF WALL ELEV = 80.40 RETENTION PONDS THIS LINE PROFILES FOR ELEVATIONS OIL SEPARATOR 6" CONCRETE PAVEMENT 2' DIAMETER LIGHT WEIGHT CAST IRON MANHOLE FRAME AND PERFORATED COVERS ANCHORED IN CONCRETE POND BOTTOM PLACE WITH MORTAR CLEAN OUT OUTSIDE GRADE VARIES cli TOP OF WALL ELEV. 79.80 CUT OR FORM HOLE IN WALL SEE DRAWING No. 1 z FOR 6" SEPARATOR INLET INVERT ELEV 79.55 5 BARS O 12' _ - - - - - - - - - - - - - 1500 GALLON OIL SEPARATOR TOP OF FLOOR SLAB TOP OF FLOOR SLAB r^ ELEV = 77.40 = SIMILAR AND EQUAL TO VAUGHN CONCRETE PRODUCT WITH 4" ROOF SLAB TOP OF SLAB ELEV = 80.43 SLOPE PIPE UNIFORMLY FROM 67.5' ELBOW TO ELEV 6077.50 AT CLEAN OUT LOCATION NEAR ENTRY INTO INV 8" PVC FROM TRENCH DRAIN 6.5' RETENTION POND ELEV = 6077.50 45• 45' SECTION -POND WALL 3 LINE SHOWN ON PLAN VIEW (SEDIMENT TRAP AND RETENTION POND) IS THIS LINE 2.5' SEDI ffM TRAP AND OIL SEPARATOR 22.5' 1 1� PLAN AND PROFILE 1 67.5' END DETAII. TOP OF WALL 79.80 " Y Y ' -y y y Y Y Y � Y # �# 12" PVC SPILLWAY PIPE FROM RETENTION POND + _ PIPE INV ELEV = 6076.00 \ THREADED PLUGS -s- \ -- 12 "X12 "X12" TEE 18 1 8 "X8 "X8" TEE 21' 8" PVC DISCHARGE PIPE FROM RETENTION POND PIPE INV ELEV = 6074.00 EXPOSED PIPING ADS SERIES 35 as +/ 12' PIPE AND FITTINGS TOP OF WALL 79.80 INV ELEV = 6079.00 r INV ELEV = 6077.00 FACE OF EXISTING METAL CRIBBING INV ELEV = 6077.00 / • „ e " „ Y I I I I Y R R -p •- R y R R y Y Y 1 Y Y R R Y I I 4'17'21' -- -------- 1• I 1 1 1 I I. I II I I _ ____ _ --------------- _ __ _ THREADED PLUGS 8"X8"X8" AND 12"X1 2_X12' TEE __- - - - - -- ___ - 11 I g" PVC FROM CENTERLINE OF PLUGS 2' ABOVE GROUND Y R- sir -kr� -- L SEPARATOR ' CLEAN OUT -- 8" VALVE AND VALVE BOX PIPE INV ELEV = 6017.50 1 MIN COVER 12" PVC SPILLWAY PIPE CONCRETE POND 8" DISCHARGE PIPE a -:.:,: ;a�"x" t,�:- .o:�..,.• APPROXIMATE LEVEL OF RETAINED OUTSIDE GRADE VARIES TOP OF WALL ELEV = 79.80 RUNOFF FROM 25 YEAR 24 HOUR STORM 1 SEE DRAWING No. 1 TOP OF FLOOR SLAB BOTTOM AT 10% GRADE 8" AND 12' PVC TO COOT INLET AT 0.005 FT /FT MIN -- - - -- RUN SIDE -BY -SIDE IN SAME TRENCH - TOP OF FLOOR FLP9ELEV =..76.00 ... �...� -�... _... �... RETENTION POND DISCHARGE PIPING INV 6" PVC FROM OIL DROP SECTION DETAEL INV 8" PVC DISCHARGE SEPARATOR = 6077.00 �0 REG /s PIPE INV ELEV 6077.00 p: + • "re" RECEIV S ALE: 3/8" = 1' -0" r 12" SPILLWAY PIPE �'=0 v R EC ! �- LZ OFFSET TO CLEAR 8" VALVE 'a4 jcj�Q PIPE INV ELEV = 6079.00 �¢ JUL 2 9 �L 198 RETENTION POND o;' . _ Fri•.....• •' Ci DIV. OF MINERALS PLAN AND PROFILE npiA�6 &GEOLOGY DIV. OF MINERALS �1 .. &, SCALE: 1" = 5' PREPARED BY SHEPHERD MILLER INCORPORATED kazzmMIJIM61:1 MOUNTAIN COAL COMPANY West Elk Mine PO Box 591 Somerset, Colorado 81434 Telephone: 303 929 -5015 1111111111101 L�J 1 AS SHOWN _. }"`"° r`F:- 114070038 - - "R3n� ".C� 111111111111 014U No DESCRIPTION BY ICHKD. APPROVED CATE 2 A ISSUED FOR CONSTRUCTION BIDDING AND PERMITTING BRJ ALS MHL CHECKED 7/97 ' z 0 STORMWATER RETENTION POND REVISED RETEN11ON POND DISCHARGE PIPING BRJ BRJ MHL MHL RLK RLK w 4/98 7/98 N L� APPROVED RLK 4/98 w PREPARED BY SHEPHERD MILLER INCORPORATED kazzmMIJIM61:1 MOUNTAIN COAL COMPANY West Elk Mine PO Box 591 Somerset, Colorado 81434 Telephone: 303 929 -5015 1111111111101 L�J 1 AS SHOWN _. }"`"° r`F:- 114070038 - - "R3n� ".C� 111111111111 014U DRAWING Nlo. DRAWING TITLE V) 1 PROPOSED AND EMSTING SITE PLAN v 2 LOAD OUT AREA PLAN VIEW AND SITE DETAIL DRAWN BRJ 7/97 z CHECKED ALS w APPROVED Of 7/97 o w MHL 4/98 L� APPROVED RLK 4/98 PREPARED BY SHEPHERD MILLER INCORPORATED kazzmMIJIM61:1 MOUNTAIN COAL COMPANY West Elk Mine PO Box 591 Somerset, Colorado 81434 Telephone: 303 929 -5015 1111111111101 L�J 1 AS SHOWN _. }"`"° r`F:- 114070038 - - "R3n� ".C� 111111111111 014U ENGINEERING RECORD BY DATE DESIGNED MHL 7_/97 a� DRAWN BRJ 7/97 z CHECKED ALS 7/97 APPROVED MHL 7/97 o CHECKED MHL 4/98 APPROVED RLK 4/98 PREPARED BY SHEPHERD MILLER INCORPORATED kazzmMIJIM61:1 MOUNTAIN COAL COMPANY West Elk Mine PO Box 591 Somerset, Colorado 81434 Telephone: 303 929 -5015 1111111111101 L�J 1 AS SHOWN _. }"`"° r`F:- 114070038 - - "R3n� ".C� 111111111111 014U