PERMFILE102715

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 1/16/2002
• Doc Name: Sedimentation Pond Summary
• Section_Exhibit Name: EXHIBIT 15 FIGURE 15-14
• Media Type: M
• Archive: Yes

BOTTOM OF EMBANKMENT q
1
1
TYPICAL SECTIONAL ELEVATION OF INCISED PONDS
SECTION THROUGH EMBANKMENT
EXCAVATED (INCISED) SURFACE
SECTION THROUGH EXCAVATION
ORIGINAL GROUND SURFACE
_j 1
1
I-*-- -20' MIN. - 10
w�1
2.5
EXCAVATED SURFACE
MAY BE CONSTRUCTED WITH
UP TO 20' HIGH BENCHES
-10' Max.
EMERGENCY SPILLWAY ELEVATION
N.P.D.E.S.ID 001a 002 003 005 007a 008 009 010a 004a 006a 009a
COAL FILL FILL FILL
LOCATION FILL 1 FILL 2 FILL 3 FILL 5 FILL 7 FILL 8 FILL 9 LOADOUT 4 6 9
Uj
Uzi VOLUME (A+F07022.1 .0 1 4.2 3.9 1 8.7 2 3.4 1.0 0.44 0.03 1.4 5.5 1.4
N ° ELEVATION ( 6875.5 6840.6 6811.9 6911.1 6791.9 6896.9 6595.3 7001.0 6975.6 6908.3
C- - - -_ -
�I OTAL POND VOLUME (AF)'' 10.3 8.3 7.6 10.2 7.9 10.4 2.1 0.6 2.6 2.4 3.8
l -
�ICONSTRUCTED 7033 6888 6853 6823 6920 16807 6907 6602 7012 6982 6916
z CREST ELEV. (FT)
LU
°TOP WIDTH (FT) 14 14 14 14 14 14 14 14 14 14 12
- -
20 12 12 12 12 12 8
RISER 12 12 12 8
DIAMETER (INCHES) j
CREST ELEV. (FT) 7029 6884 4 68494 1 6819 6917 6804 6904 6599 7009 6979 6913
O SIZE OF HOLES) 4 @2' 4 2'2' @ 3 @2' 3@1.5' 2 sets 0f 4 @ 1" 4 @1" 4 @1• „ ,� 3 @i• - 2�° 2"
�° 2 2' �° 3 2' ase+sofa@ 4 1" q @1: 2 @2 2@i 3 1' 2 91 2 1"
(INCHES) 4 @2' 4 2" 2 @2• 4 1' 4 @i'3 @1.5 '- 3@1.5' 2112" 4 1" _
SPILLWAY DETAIL (TYP)
DESIGN DEPTH
2.5 - 3 2.5 -
BOTTOM
N WIDTH
I;I
1__�
BEDDING MATERIAL
TYPICAL SECTIONAL ELEVATION OF POND EMBANHII11ENTS
1.4
TRASH RACK ti
AND ANTIVORTIX SPILLWAY DESIGN
1.0' MIN. DEVICE PONDING LEVEL °""", ELEVATION OF EMERGENCY SPILLWAY
EDIMENTATION LEVEL SET OF HOLES ARIES a
RE IRED ELEVATION OF LOWEST
S (VARIES) � ANTISEEP COLLARS AT
20' SPACING EXTENDING ONE
PAST DAM
V
VARIES
T
POND SCHEDULE
2 -2 2 -3 3 -1 4 -1 4 -3 5 -1 6 -1 7 -1 7 -2 7 -3 7 -4
FILL 4-2, FILL 4-1, P5,
ILL 2 -1 NORTH P2 P3 P6, SOUTH P2 NORTH P7 FILL 7 -1 FILL 7 -2
-
- -P4 -P4 FILL 5 -1 FILL 6 -1
7.9 1.7 3.9 4.4 2.90 5.8 8.4 .851 2.3 5.5 2.2
6638.2 6616.6 6659.0 6701.0 6666.7 6734.6 6735.6 6686.1 6681.0 6642.5 6634.8
16.6 1.2 7.3 8.8 4.9 1 9.6 3.8 7.4 6.1 9.3 4.4
F 6647.5 6622 6667 6707.4 6672 6742 6742.5 6697.5 692 L6652 6642
12 14 12 12 12 14 14 14 14 14 14
8 8 8 8 8 12 18 12 12 12 12
6644 6619 6664 6704 6669 6737 6739 6694 6689 6646 6638
2 @2^ -3 @2. 3@2,� 4 @2„ +.5• - 31519 3 @i.- 4 @1.5„ 4 @i„
2 @1 3 1 „ „ 15'
3 1° 2 1" - 3 1" _ 3 @2 4 @2 -,5' '' - - s i^ 4 @1.5„ 4 91„
g ELEVATION OF LOW 7022 6876.5 6841 6814 6911.5 6793 6898 6597 7006.00 6976 6910.0 6638.5 6617 6660.5 6701.5 6667.5 6735.0 6736 6691 6686.5 6644.5 6636
Fr EST. SET -- - -
BARREL 18 10 8 10 12 10 6 12 8 8 6 6 6 6 6 6 1 8 14 8 8 8 8
DIAMETER (INCHES) I --
DESIGN „J ^Jr � �r_ o� �� 'G '� �� '� 95 25 25 25 25 25 25 25 I 25 25 25
FREQUENCY (YRS)
CONSTRUCTED HEIGHT
aBETWEEN BASE OF 10 1 10 10 10 10 10 10 5 10 10 10
DAM A
Ch INVERT OF w ELEVATIONS(FPITLLWAY -� - - - - - } -
Z CREST 30 6885 6850 6820 6918 6805 6905 6600 7010 6980 1 6914
Lu BOTTOM WIDTH 14 16 14 16 10 16 15 1 14 14 15
M
W __. -
DESIGN DEPTH (Fl) 1.9 2.0 2.0 2.0 1.0 1.0 1 .0 U.9 1 .0 1 .0 1 .0
FREEBOARD( 1.1 1.0 1.0 1.0 �0 1.0 1.0 1.1 1.0 1.0 1.0
11 -YEAR SEDIMENT STORAGE, 10 -YEAR 24 -HOUR STORM
22 -YEAR SEDIMENT STORAGE, 10 -YEAR 24 -HOUR STORM
SPEAK STAGE, 10 -YEAR 24 -HOUR STORM PLUS SEDIMENT VOLUME
10
5
10 10 10 10
10
6645 6620 6665 6705 6670 6740 6740
25 8 10 40 11 16 15
1.5 1.0 1.0 1.4 1.0 1.0 1.5
1.0 1.0 1.0 1.0 1.0 1.0 1.0
ire,
wwvv
12
1.5
1.0
10
10 10
6690 6650 6640
6 18 6
1.0 1.0 1.0
1.0 1.0 1.0
I
CONSTRUCTED
EMBANKMENT
HEIGHT
PRIMARY OUTLET
RISER DETAILS (FYP)
RISER DIAMETER VARIES
NUMBER OF HOLES
AND SIZE VARY
ELEVATION
BARREL CONDUIT DIAMETER VARIES
Permit N tuber C l - OF (�
Class omit OO
SecUO /Exhibit_ _ A f
evision _
Class O R - Y "' Cr-`= �� -.�.7 ._.- -
Type,Seq.
Class ❑ Reporl O Hydro ❑General - i
Doc Type: ' --
Application (Coal onl --
Y) ❑bond ❑Enforcement ❑Inspection
RECFI`fr^
JAN ) 2002
Division of Minerals 5 c;ea:wv
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII -0
CERTIFICATION L O R E N C I T O COAL C13my L L C
LORENCITO CANYON MINE
I certify that I have reviewed this drawing and that Las Animas County, Colorado
it was prepared under the supervision of a certified
professional engineer, geologist or land surveyor SEDIMENTATION POND SUMMARY
assist,, s in a variety of natural resources
disc. "�` ��• o ormation contained herein is REV DESCRIPTION BY DATE
ac - t he tilts my knowledge and belief. A I UPDATED FILL 7 DATA RLZ 01.16.02
/-
- z
Karl Date
",j000r
�X Xm j, FIGURE
BY: ML PREPARED BY: LW DATE: 01.16.02 EX 15 -14