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BOTTOM OF EMB, <br />TYPICAL SECTIONAL ELEVATION OF INCISED PONDS <br />SECTION THROUGH EMBANKMENT <br />1L <br />1 <br />SECTION THROUGH EXCAVATION <br />ORIGINAL GROUND SURFACE <br />X20' MIN. <br />EXCAVATED SURFACE <br />MAY BE CONSTRUCTED WITH <br />UP TO 20' HIGH BENCHES <br />EMERGENCY SPILLWAY DETAIL (TYP) <br />FREEBr RD <br />DESIGN DEPTH <br />�OW <br />WIDTH <br />POND SCHEDULE <br />RIP RAP <br />BEDDING MATERIAL <br />TRASH RACK <br />AND ANTNORTEX <br />DEVICE � <br />SPILLWAY DESIGN <br />PONDING LEVEL <br />TYPICAL SECTIONAL ELEVATION OF POND EMBANKMENTS <br />wl�-►I <br />4 <br />I <br />ANTISEEP COLLARS AT <br />t 20' SPACING EXTENDING ONE <br />PAST DAM 4 <br />A <br />VARIES <br />I <br />N.P.D.E.S. ID <br />DESCRIPTION <br />BY <br />DATE <br />1 <br />UPDATED FILL 7 DATA <br />RLZ <br />01.16.02 <br />004a <br />006a <br />009a <br />2 -2 <br />2 -3 <br />3 -1 <br />4 -1 <br />4 -3 <br />5 -1 <br />6 -1 <br />7 -1 <br />7 -2 <br />7 -3 <br />7 -4 <br />001 a <br />002 <br />003 <br />005 <br />007a <br />0084 <br />009 <br />01 Oa <br />FILL <br />FILL <br />FILL <br />FILL 2 -1 <br />NORTH P2 <br />P3 <br />FILL 4 -2, <br />FILL 4 -11 <br />P5, <br />P6, <br />SOUTH P2 <br />NORTH P7 <br />FILL 7 -1 <br />FILL 7 -2 <br />COAL <br />LOCATION <br />FILL 1 <br />FILL 2 <br />FILL 3 <br />FILL 5 <br />FILL 7 <br />FILL 8 <br />FILL 9 <br />LOADOUI <br />4 <br />6 <br />9 <br />P4 <br />P4 <br />FILL -1 <br />F - <br />3.4 <br />3.2 <br />0.44 <br />0.03 <br />1.4 <br />1.9 <br />1.4 <br />7.9 <br />1.7 <br />3.9 <br />4.4 <br />2.90 <br />5.8 <br />8.4 <br />.851 <br />2.3 <br />5.5 <br />2.2 <br />5.0 1 <br />4.2 <br />3.9 1 <br />3.7 <br />6638.2 <br />6616.6 <br />6659.0 <br />6701.0 <br />6666.7 <br />6734.6 <br />6735.6 <br />6686.1 <br />6681.0 <br />6642.5 <br />6634.8 <br />Z <br />VOLUME (AF) <br />6908.3 <br />6760.6 <br />6911.1 <br />6747 <br />6896.9 <br />6595.3 <br />7001.0 <br />6978.8 <br />W ° <br />ELEVATION (FT) <br />7022.1 <br />6875.5 <br />6840.6 <br />4.6 <br />3.8 <br />1 b.b <br />1.2 <br />7.3 <br />8.8 <br />4.9 <br />9.6 <br />3.8 <br />7.4 <br />6.1 <br />9.3 <br />4.4 <br />2.6 <br />3 <br />7.9 <br />12.1 <br />2.1 <br />0.6 <br />TOTAL POND VOLUME (AF) <br />10.3 <br />8.3 <br />7.6 <br />9.5 <br />CONSTRUCTED <br />7033 <br />6888 <br />6853 <br />6770 <br />6920 <br />6760 <br />6907 <br />6602 <br />7012 <br />6985 <br />6916 <br />6647.5 <br />6622 <br />6667 <br />6707.4 <br />6672 <br />6742 <br />6742.5 <br />6697.5 <br />6692 <br />6652 <br />6642 <br />CREST ELEV. (FT) <br />Z <br />TOP WIDTH (FT) <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />12 <br />12 <br />14 <br />12 <br />12 <br />12 <br />14 <br />14 <br />14 <br />14 <br />14 <br />14 <br />12 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />12 <br />18 <br />12 <br />12 <br />12 <br />12 <br />RISER <br />20 <br />12 <br />12 <br />12 <br />12 <br />12 <br />8 <br />12 <br />12 <br />DIAMETER (INCHES) <br />6767 <br />6917 <br />6755 <br />6904 <br />6599 <br />7009 <br />6982 <br />6913 <br />- 6644­; <br />6619i:.':' <br />6664 <br />- 6704 <br />6669 <br />6737 <br />-6739 <br />6694 <br />6689 <br />6646 <br />6638 <br />IL <br />CREST ELEV. (FT) <br />7029 <br />6884 <br />6849 <br />" <br />3 @1" <br />3 @1.5" <br />2 @2" <br />3 r <br />2 @1" 3 @2" <br />2@2" <br />3 @2" <br />3@2" <br />4@20 <br />431:51 <br />301.5. 4 1° <br />3 @1" <br />3@1' <br />4 @1.5" <br />4 @1.. <br />' <br />Q <br />SIZE OF HOLES) <br />4021 4 <br />2 @2" <br />4@1 "5" 4 @1" <br />3 3 @2.5" <br />1° <br />4 se 2 <br />3 @3.533@'335• <br />2 @2° <br />2 @1 n <br />3 @1" <br />3 @1.5' <br />2 @1" <br />3�z <br />2 @2" 3 2@2' <br />" <br />2 @1" <br />3 @1" <br />3 2" <br />4 @2° <br />4 1.5: <br />a�i 4� <br />1 <br />4 1.5" <br />4@1 <br />(INCHES) <br />OF LOW <br />@2" <br />2 2" <br />@1 <br />@2X5" <br />I/2 " ^@ <br />6911.5 <br />6748.5 <br />6898 <br />6597 <br />7006.00 <br />6979 <br />6910.0 <br />6638.5 <br />6617 <br />6660.5 <br />6701.5 <br />6667.5 <br />6735.0 <br />6736 <br />6691 <br />6686.5 <br />6644.5 <br />6636 <br />ELEVATION <br />7022 <br />6876.5 <br />6841 <br />6761 <br />d <br />EST. SET OF HOLE(S) (FT) <br />6 <br />6 <br />6 <br />6 <br />6 <br />6 <br />8 <br />14 <br />8 <br />8 <br />8 <br />8 <br />BARREL <br />18 <br />10 <br />8 <br />12 <br />12 <br />12 <br />6 <br />12 <br />8 <br />10 <br />DIAMETER (INCHES) <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />DESIGN <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />25 <br />FREQUENCY (YRS) <br />CONSTRUCTED HEIGHT <br />5 <br />r <br />10 <br />8 <br />10 <br />10 <br />5 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />3 <br />BETWEEN BASE OF <br />10 <br />10 <br />10 <br />8 <br />8 <br />10 <br />10 <br />DAM AND <br />z <br />INVERT OF SPILLWAY <br />7010 <br />6983 <br />6914 <br />6645 <br />6620 <br />6665 <br />6705 <br />6670 <br />6740 <br />6740 <br />6695 <br />6690 <br />6650 <br />6758 <br />6905 <br />6600 <br />Z <br />CREST <br />7030 <br />6885 <br />6850 <br />6768 <br />6918 <br />w <br />ELEVATION (FT) <br />10 <br />10 <br />16 <br />15 <br />1 <br />14 <br />10 <br />15 <br />25 <br />8 <br />10 <br />40 <br />11 <br />16 <br />15 <br />12 <br />6 <br />18 <br />6 <br />BOTTOM WIDTH <br />14 <br />16 <br />14 <br />W <br />1.0 <br />1.0 <br />1.5 <br />1.0 <br />1.0 <br />1.4 <br />1.0 <br />1.0 <br />1.5 <br />1.5 <br />1.0 <br />1.0 <br />1.0 <br />2.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />0.9 <br />1.0 <br />DESIGN DEPTH (M <br />1.9 <br />2.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />FREEBOARD (FT) <br />1.1 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />1.1 <br />1.0 <br />11 -YEAR SEDIMENT STORAGE, 10 -YEAR 24 -HOUR STORM <br />22 -YEAR SEDIMENT STORAGE, 10 -YEAR 24 -HOUR STORM <br />3PEAK STAGE, 10 -YEAR 24 -HOUR STORM PLUS SEDIMENT VOLUME <br />4AS BUILT <br />CERTIFICATION <br />I certify that I have reviewed this drawing and that <br />it was prepared under the supervision of a certified <br />professional engineer, geologist or land surveyor <br />assisted by experts in a variety of natural resources <br />disci �o �h�� information contained herein is <br />ac knowledge and b,lief.7 <br />IS <br />CONSTRUCTED <br />EMBANKMENT <br />HEIGHT <br />PRIMARY OUTLET <br />RISER DETAILS (TYP) <br />RISER DIAMETER VARIES <br />I <br />NUMBER OF HOLES <br />AND SIZE VARY <br />BARREL CONDUIT DIAMETER VARIES <br />LORENCITO COAL CO., LLC <br />LORENCITO CANYON MINE <br />Las Animas County, Colorado <br />SEDIMENTATION POND SUMMARY <br />EV <br />DESCRIPTION <br />BY <br />DATE <br />1 <br />UPDATED FILL 7 DATA <br />RLZ <br />01.16.02 <br />2 <br />UPDATED FILL 5 & 8 <br />PBE <br />02.06.02 <br />FILE: 475\Am\FIOURE E% 161 <br />3 <br />UPDATED POND 006a <br />PBE <br />03.14.02 <br />FIGURE <br />EX 15 -14 <br />4 <br />REVISE POND 005a TO READ POND 005 <br />PBE <br />04.29.02 <br />.AWN <br />BY: PBE <br />IPREPARED BY: MK <br />DATE: 04.29.02 <br />