2018-07-24_PERMIT FILE - C2010089 ‎(8)‎

• Permit No: C2010089
• IBM Index Class Name: Permit File
• Doc Date: 7/24/2018
• Doc Name: Pond NHN-002 & Ditch Designs
• Section_Exhibit Name: Map 2.05.3‎(4)‎-9
• Media Type: M
• Archive: No

Emergency Spillway Pipe X1
18" CMP, 372', 1 .3% Slope
P
Pipe Inlet: 5680.5'
Plastic liner at spillway !nD -
outlet with 2"-12" rocks to
.
disperse discharge water
A
�.
Anti Seep
•� HN-002 North Ditch _
Collars ©o
��f,sX C'J n1 � � Q CCj � t�? '�
+ �} ,
Pimary Spillway Pipe , ,� + o
181, CMP 343' 1 .1% SlopeB B N
c� N
Pipe Inlet: 5678.0' � Cf
Riser Inlet: 5681 .9' C ' 09+9Z
SWS2�C
Emergency Spillway
Glory Hole Junction Boy 3 16 . 7 Acres
O�+LZ
00+8Z
Emergency Spillway: 5682.9' ;
a-0
s _
Trapezoidal Channel ' Gabion, 09+9
Basket b�
8' Bottom, 3H:1V Side Slope
{ 0+6z
0
.-- + LO
cam, CN
,t � t
Plastic liner down
� L �r slope from inlet
E
Top of Structure: 685'
o
CL
Top of Structure: 5685'
♦ . ♦ ♦
r ♦ ♦ ♦ M
4
♦ .
0 Plastic liner down
* A' pond slope from inlet
10+00
9+50 43 . 2 Acres
+00
8+50
8+00
South Ditch
7+507+75 to 11+00
2.1 Acres
6k a
00
5+50
4_0
s rri
+0Q
-C
-iE-+ +50
�/j 4+00
CN South Ditch
0 3+50 0+00 to 7+75
0 8.7 Acres
I
G 3+40
Z 2+50 SWS2�A
2+00
0 . 3 Acres FW •
1+50 S S2 rainage Area
1+00
cres
0+50
A
Pond NHN-002 Al
New Horizon North Mine Stage Storage Curve c-2010-089 5700
Pond NHN-002 5690 Original topography 5700
5680 Q.r f
„�� _ 5690
5670 �. ww .._ -
Pond topography,_... ....___._. _. _
3,p. 5680
...... _.. 5670TOP OF STRUCTURE(5M.00) 5660 5685 5660
a a a o q
o + + + + + + + + $ � o $
5684 B v B v LO sn c>a cs� ti
5683 5-Y P 20 6710 5710 5682 C
EMERGE CYSPILL Y{56$3.00 C!
-'
5700 weephole valve control Anti-vortex device at riser fop�Original topography 5700 5710 5710
PRINCIF AL sPILLW Y(568190) 5690 __ 5690 5700 Emergency Spillway to
0 5681 Original topography _5700
5680 72"diameter dropinlet 5690
-- ''� '''1_ 5680 5690 __.
> 56s0 _ ._. '.' Pond topography .,. ..
QI YR PEAK STA E(5679.93) 56670
w 6" diameter weephole on riser bottom controlled 5670 5680 - --- -�' 5680
5679 5660 °
18"Principal Spillway Pipe to by valve,typically left open 0.5"diameter 5660 5670 „3
5678 sE©EE oLEs�( { $) ) 5650 discharge near Meehan Draw 5650 5660 Emergency spillway outlet pipe Pond topography 5670
to discharge near Meehan Draw 5660
5677 g a g L g 5 o Lnn a a
N N q Q + + +
5676
N N
5675 Table 2.05.3(4)-9-2 NHN-002 Ditch Design Parameters Principal
5674 mum_.. Ditch station Cunnutitive slope Mini Left Side Right Side Rip Rap Pip
V
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 Flow(cfs) Bottom slope Slope Dso(in) X
Width(ft) (H:1V) (H:1V) 5700 ' !
Accumulative Storage{Acre-Ft} NHN-002 U+40 to 7+75 6.54 1-5 6.0 2.0 3.0 N/A 5700
South 7+75 to 11+00 8.14 6-10 12.0 2.0 2.0 1.5 5690 Pipe dayfights, 5690
NHN-002 20+90 to30+30 5.23 1-4 12.0 2.0 2.0 N/A Pond topography Original topography remainder on surface
North 5680 Meehan Draw
5680
New Horizon North Mine
Storage volume computations 5fi70 �``'�18"diameter CMP- ''"' - 5670
(�1.0 ft. freeboard
Pond NHN-002 5660
5�60
T" 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ELEV. width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE ./ 0 - N Cn d LO CD P► 00 0) r
ft) {ft) {ft) lac) AREA N t'r3 tiT It? Co P• 00 0) 0 r 04 M Q` LO CD P+► 00 0) C) v- CV M d- uy
{ (ft) (ao-ft) STORAGE INTERVAL . . . 0 . C+3 © p p . *. . + . . #� . # . + + + + + + + + + + + + + + + +
(om) (aeft) (ft)
2-1- N N N N N N N N N N M M c� M C7 t'7
6674.00 NIA N/A 0.740 1 --See table
-�--~ "-'--
0.931 �_� o.a3t o.s31 1.0o p (� 1.0 ft. minimum depth E�e r e n G Spi(� NY a P I e
5676.00 N/A NIA 0.922 Total de th of ditches will be at least 2.0 ft. Maximum sidesio es and5676-00 NIA NIA 1.125 1.024 1.00 1.024 1M5 2.00 minimum bottom widths are shown in Table 2.05.3(4)-9-2 above. P g p
5677.00 NIA NIA 1232 1.179 1,00 1.179 3.033 3.00
56700 NIA N/A 1.52 1.398 1.00 1.398 5.718 5.00
1288 1.00 1,288 4.321 .00
5679.9,00 NIA NIA 1.452 Pond NHN-002 Emergency Spillway Channel Dimensions Y Y+
5680.00 NIA N/A 1.565 1,509 1.00 1.509 7227 6A0 5700
5681.00 NIA NIA 1.679
1.622 1.00 1.622 8.849 7.00 1.0 ft. freeboard 5700
1.862 1.00 1.738 12.448 9.00 5690
5682_0o N/A NIA 1.796 5fi90 Pipe daylights,
1.862 1.00 1.862 12.448 9.00 `� Pond to rah
5683.00 N/A N/A 1.927 _.. po9 p Y _ _ _ _ remainder on surface
6684.00 N/A N/A 2.063 1.995 1.00 1.995 14.443 10.00 3+ 5680 5680
5685.00 NIA NIA 2.210 2.137 1.00 2.137 16.579 11.00 -`" Meehan Draw
8.00 ft. 5670
- --- 18"diameter CMP 5670
5660 Original topography
Trapezoidal Channel 5660
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CD co 0 0 0 0
MaximumSide Slopes:3.1 1.0 ft. maximum flow depth 0 N b'M V) 0 P­ 0 0 0 - N Cn er ' (0 r, oa 0) o T- N M d LO to ti ao 0) 0 N M qt Ln 0
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Channel Lining. Alluvial silts eollodial 0 0 0 0 0 0 0 0 0 0 t- r T- V- V-- e- V- .-- x- t_ CN N N N N N N N N N Cn M M M M M M
NHN_00 2 North Ditch Legend ENGINEER'S CERTIFICATION � NHN-002
I, Jason S. Storey, hereby certify that OND
5730 5730 Permit Boundary this map has been reviewed by me and
p p p tip is true and correct to the best of my p�- DITCH DESIGNS
� �� •••• �ysF knowledge and information, relying on cn 5710 �'----- 5710 Subwatershed Boundary � r�:O information supplied by experts AS SHOWN
1-4 J°- __ o f + employed by New Horizon Mine and101.1�
�`�` SCALE:
0
/,r." 0 � DATE: �8I20/2p10
w { w that l am a Professional Engineer
5690 Stream Buffer Zone (100') .Pd.w
N
�� 56� �� $� licensed in Colorado as required by the ..., DRWG. BY. TSGT
M �� © �" `�` provisions of C.R.S 12-25-101 through APPROVED BY. J. STOREY
Pond Design Contour ' '�� "�Fs"®.•�s�°®•� C.R.S. 12-25-119, W WITNESS
5670 5670 CNAL WHEREOF i have hereunder set my y DRWG NO.
LO a Lon a LO a a a in a LO a ►`s a 4RIZOc4
+ + + + + + + + + + .F + + + + + + + + + Postm i n i n g Ta po hand and affixed my seal
q C4 T N N co co �t CN ua CN N N N CIDN N N N q q New Horizon Mine Map r r N N N N N N N N N N N N N N N N N N N cYs th JASO . ST EYPre-Minis Toy o
P.E. No.48092 Permit Na.C 2010 o8s 05, 3 9
F.Q Box 828,Nucla,CO.87424
NHN-002 South Ditch Z TR-17
5730 5730 ©A E Approved 7/24/2018
No. REVISION DATE BY CHK
5710 5710 PR-01 _ �
UPDATED POND NHN 002 WATERSHED 04/ 2116 ,JSS TTIFF
5690 REVISED POSTMINING TOPOGRAPHY
-10°/ 56� 100' 0 100' 200' TR-�'S 02115117 JSS TTIFF
AND WATERSHED BOUNDARIES
5670 6670 TR_�8 REMOVED PORTION OF NORTH DITCH, 8/2?I78 JSS TTIFF
a . a . a . a a $ a a a a REVISED WATERSHED BOUNDARIES
Y T N N CnM �- � LO � W W r­ 1­ 00 00 M M q q �- CONTOUR INTERVAL 10 F7:
T T T REDESIGN POND NHN--002, REVISE
POST MINE TOPOGRAPHY TR-17 WATERSHED BOUNDARIES 6111118 JSS TTIFF