2015-03-09_PERMIT FILE - C2010089A ‎(2)‎

• Permit No: C2010089A
• IBM Index Class Name: Permit File
• Doc Date: 3/9/2015
• Doc Name: Pond NHN-002 & Ditch Designs
• Section_Exhibit Name: Map 2.05.3‎(4)‎-9
• Media Type: M
• Archive: Yes

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LAr- LINE AT SPILLW P
PIPE
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OUTLET 12 + ROCKS
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PLACED TO D ISPER -- --- --T- . -_- -- -- - -- '
DISCHARGE WATER.
EMERGENCY SPILLWAY INLET PIP
18"DIA CMP, >300 FT LONG A _ 10o ft stream buffer
NHN-002 North Ditc
1GRADE -
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INLET AT 5680.75'
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JUNCTION BOX FOR o +9Z PRE ARY S � LWA( IN
PIPE,; , ���� �" �' �i� - -
CY SPILLWAY 11,811IA CMP, >300 FT LO G
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GEN EMER ' 1 % "GRADE
T 5680 75
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RI R INLET AT 5684
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TOP OF EMBANKMENT. 5688 AVIC
EMERGENCY SPILLWAY. 5686 ,I q�+6� o ��; Subwatef-sbed for
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TRAPEZOIDAL CHANNEL
10FT BOTTOM, 2H: 1V SIDES +;; ;� \ "' (" ;I - / 1
s Plastic li r down pond
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POND BOTTOM AT 5677 lope fro ditch, entrance.
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so opefrom ditch entrance.
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T� Principal Spillway Pipe
5700 Pipe daylights, 5700
5690 Pond NHN-002 remainder on surface 5690
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� 5680 _ Baseline topography Meehan Draw 5680
�- - 5670� 18' dia. CMP 5670
0 - / 5660 5660
57 ' C.
/ '/ (� O O N M V to (OD Or 00 m O O N M V LO] cD Or 000 0) O O N M <t run O r- w m O O N M d' M
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-�- - O O O O O O O O O O �- r- .-- a- N N N N N N N N N N M M M M M M
_ --- Emergency Spillway Pipe
-- - - - --
5735 ,, �� Y Y'
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- 5700 Pipe daylights
- -- - 5700
- - - -- _ _ - remam er on su ace
- _ -- --- -- _ 5690 Pond NHN-002 5690
----------- ------
5680 �- Baseline topography
' d surface
Meehan Draw 5680
Fr -_� �� 5670 18"dla. CMP 5670
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_ / _ �� 5660 5660
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Table 2.05.3 4 -8-2
New Horizon North Mine Stage Storage Curve C-2010-089
� � I Pond NHN-002
Ditches NHN-002 North and NHN-002 South NHN-002 Ditch Design Parameters
�1-00ft. Freeboard Cumulative Minimum
Stations Flow, Q Slope, % Bottom Width Side Slope, HAV Rip Rap, D50, in
�- NHN-002 South 0+00 to 7+75 23.76 1-5 12.0 2.0 N/A
2+ - 7+75 to 11+00 23.96 6-10 12.0 2.0 3.0
I~See table -I 5688 ----- - --- -- - -- ---- -
NHN-002 North 0+00 to 9+00 13.63 1-5 12.0 2.0 N/A ( TOP OF STRUCTURE
1.0 ft. 9+00 to 30+30 27.37 1-4 12.0 2.0 N/A - _ (5sas.o))
5687 --
Both ditches will be built to a bottom width of at least 12 ft 25-YRPEAK TAGE (5686.35)
and a total depth of at least 2.0 ft. Sideslopes must be no 5686
steeper than 2H: 1V. Channel bottom width and lining based on E ERGE CYSPILLWAY(5686.0 )
Table 2.05.3(4)-8-2 to the right. NHN-002 North Ditch J
(q 5685 - -
5770 5770 5684 -a 04R-P AK-STAG€-(568a.86) -- ---
Pond NHN-002 Emergency Spillway Channel Dimension 5;750 \---- ,-5nr 5750 ° PRwcIP L SPILLWAY (5 a4.00)
5683 -�
1 .00ft. Freeboard 5730 5730 W 5682
-
10.00 ft. 5710 5710 5681 1-WEEPHOL-E(5689-75� -- �---
5690 AOX5690 - - - _ LEAN OUT LEVEL(5680.08)
5680 I --- - --
Trapezoidal Channel 1 .0 ft maximum flow depth 5670 I 5670 5679 __-
-
EqualSideSlopes o00oo00000000000000000000000000000000000000000000000000000000o
O + O h O U) O N O try O . O la O . O . O ra O . O ,a O ,a O . O ra O ra O ra O . O YJ O . O N O N O N O ra O ra O 1a O N O ra O N O . O N
# # # + + # + + + # # # + # # # + # # + + + # # # # + # # + + + # + + # + + + + # # # # # # + + + # + # + 4 # + + + + # + +
Channel Lining: Alluvial silts collodial O O N N C h O V O O W r4 r n O aJ m M O O N N M N V V on in W to ti r 00 w Co Co O O v a a: m m n r m m rn m o o
.- .- .- e- �- .- '- N N N N N N N N N N N N N N N N N N N N t7 5678
NHN-002 South Ditch 5677 ---- ---- ---- "-- -
0.0 5.0 10.0 15.0 20.0 25.0
5730 5730
5 Accumulative Storage (Acre-Ft)
5i710 - 5710
5690 5690
1oi� Storage
Horzon North Mine
ns
5670 v 5670
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o Pond NHN-002
O O O O N O uJ O e) O v) O N O h O O O MD O O o
ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE
(ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL
AA, I (aG-ft) (ft)
5740 5740 5677.00 N/A N/A 0.0000
5730 5730 5678.00 N/A N/A 1.6156 0.8078 1.00 0.8078 0.8078 1.00
5720
5720 5679-00 N/A N/A 1.7307 1.6731 1.00 1.6732 2.4809 2.00
5710 5680.00 N/A N/A 1.8475
5710 1.7891 1.00 1.7891 4.2700 3.00
5700 5680-61 N/A N/A 1.9197
5700 -• 1.8836 0.61 1.1490 5.4191 3.61
5681.00 N/A N/A 1.9659
5690 _ ._..•... - . _ -._ _, . _- _ .._ . _ m ._. . .. . .,_ , _.-._.- .: _- . _ - -__ 1.9067 0.39 0.7577 6.1767 4.00
5680 2.0259 1.00 2.0260 8.2027 5.00
5670 - -. . -. 5670 5682.00 N/A N/A 2.0860
5s70 Ssso 5683.00 N/A N/A 2.2077
2.1468 1.00 2.1469 10.3495 6.00
5660
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.2693 1.00 2.2694 12.6189 7.00
0 0 0 "' o a) o „' o "' o o + + rn o o O in 5684.00 N/A N/A 2.3310 2.3935 1.00 2.3935 15.0124 8.00
+ + + + + + + + + + + + + + + + + + + +
N N c� m v v o in m m r n o m w m
0' 50' 100' 150' 5685.00 N/A N/A 2.4560
5686-00 N/A N/A 2.5826 2.5193 1.00 2.5193 17.5317 9.00
2.6467 1.00 2.6467 20.1784 10.00 PP00 UCF
5687.00 N/A N/A 2.7108 .......��
2.7757 1.00 2.7758 22.9542 11.0 Gam;'N S' & .
5688.00 N/A N/A 2.8407 .moo ,
T
E`Ve® I 480�32
n of Rec\amih0n,
5730 5730 GL
5720 5720 C CI Legend •-rr WESTERN FUELS - COLORADO
5710
5710 5710 5710 Permit Boundary A LIMITED LIABILITY COMPANY
5700 5700 5700 72"Emergency Spillway 5700 W NEW HORIZON NORTH MINE
g y p y (5686' elev.) to .- F 2
weep„de valve nnn-vadea aedce a< - 72" dio. drop inlet _.. ////////////////////i � �
5690 `°nt� ., 5690 5690 P
6 da weep„ nmr-wNem 5690 Pond Design Watershed Areas Tri q o �tls
5683 "�- ed=��N' iro`olN � 5683 5680 - -""- 56s1) g RIZO 3l P.0 Box 628, NUCLA, CO. 81424
5670 re Pdneipai SIAMW Pipe turning north to diecarge nour Meehan dr.. 5670 5670 5s7o Subwatersheds Map 2.05.3(4)-9
tospillway outlet 4e a north
to discharge near Meehan
5860 5660 5660 nrow 5660 Prre-Mining Topo Pond NHN - 0 0 2 &
5650 5650 0 u} o to o to o "
00 � o r0n o ran p o o N N M
Past-Mining Topo Ditch Designs
0 0 Po!nd Contour
0' 40' 80' 120' 100 Ft. Stream Buller DWG. DATE: 10/01/13 Revise N. Ditch Entrance Location
CONT. INTERVAL: 5' Contour Int. CONT. DATE: REV. DATE: 01/26/15
DRAWN BY: GLA DWG. NO.: Map 2.05.3(4)-9 Pond NHN-002 rev 1-28-2015 final.d19
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