|
EMP -22 Constructed
<br />in 2018 for service a
<br />beginningin 2019 �
<br />(All within Buffer Boundary, ,
<br />Y�
<br />A Channel']
<br />EMP -9- 4 ponds constructed in (2013) Profile D
<br />10AF Total Capacity �!� Sheet / t
<br />1.20 Acres outside the Historic
<br />Buffer boundary
<br />90x5 PLiE
<br />4
<br />Historic Recreation
<br />Buffer Bounda l �Q Channel
<br />Channel Profile F
<br />Profile C 9 °� Sheet 6
<br />Sheet 6 EMP 09
<br />0
<br />U n% CV
<br />e- (9 A
<br />1413M1
<br />➢r E TREES
<br />EMP -21- Constructed
<br />in 2014 Total / r PG-A
<br />Capacity 10 AF 1112
<br />AV uiir-Aff_� Channel
<br />o ` 9,b
<br />L i Profile E _
<br />,�r Sheet 6
<br />/
<br />i
<br />%O
<br />0
<br />D
<br />to
<br />5115
<br />5/11
<br />Future
<br />EMP-22
<br />EON' -V
<br />_...'/1 L' _ - -
<br />3/5
<br />Channel
<br />Profile G �.
<br />a
<br />Sheet 6
<br />Cj EMP -Sa
<br />2013 -16
<br />27/58
<br />EMP - 08a
<br />0_"�Poverty Gulch Storm Water Management Area
<br />Plan View
<br />1 " =500 ft (DSize)
<br />Poverty Gulch Water Management Area
<br />including North Cresson Development on West Side
<br />Basin Basin Basin Basin
<br />NC -El NC -D 1 NC -C 1 NC -B 1
<br />Unfi12015
<br />0
<br />Basin Existing Depression
<br />NC Al near Schist Island
<br />Unti12015 EMP -08a
<br />8.6AF
<br />North Cresson /Schist Island Near -term Controls 9P
<br />grading ditches along conveniently located Roads to Convey
<br />Storm Water to existing Depression Areaat Schist Island
<br />Natural UnA12015 Basin
<br />Channel _\ PG -
<br />F1
<br />Unti12015 Basin
<br />Basin
<br />PG -D 1
<br />Basin II Basin
<br />Basin PG -C7 PG -Al
<br />Basin PG -E1
<br />PG -Gl EMP -019
<br />Spillway InOAF Until 2015
<br />VI
<br />EMP -022 Secondary Collection Below North Cresson System
<br />1.9 AF and Permanent Collection and Delivery to EMP -009
<br />2 Poverty Gulch Storm Water Management Area
<br />Schematic
<br />75AF
<br />ti
<br />l;
<br />Tributary
<br />to SGDSA
<br />V
<br />ir
<br />Low
<br />Upper S
<br />5 Preparation 2013
<br />Plan View
<br />1" =1000 ft (DSize)
<br />7 End of Year 2015
<br />Plan View
<br />1" =1000 ft (DSize)
<br />9 End of Year 2017
<br />Plan Viewf
<br />1 " =1000 ft (DSize)
<br />EMP -22
<br />EMP X09
<br />a
<br />EMP -aryt
<br />EMP 09-
<br />837 Acres "�•
<br />do
<br />I
<br />ij •
<br />Tributaryt �77� -
<br />-
<br />9.7AC2 -,
<br />11 End of Year 2019 to Mine Life
<br />Plan View
<br />1 " =1000 ft (DSize)
<br />6 End of Year 2014
<br />_ Plan View
<br />1" =1000 ft (DSize)
<br />Legend
<br />Basin Name
<br />Area PGx
<br />101 Here 7z cfs- 100yr Discharge
<br />l0yrDischarge ai cis foncreFeet Zx IOyrVolume
<br />Eu Channel Name
<br />grnz
<br />100 yr Discharge (cls)
<br />10-yr Discharge (cfs)
<br />i m n a m m m Temporary or Existing Channel
<br />miSimimimim Proposed New Channel
<br />n i m i m i = i m i m 10 Mining Boundary
<br />8 End of Year 2016
<br />Plan View
<br />1" =1000 ft (DSize)
<br />2 F_ Depth
<br />(End of Year 2018
<br />�O) Plan View
<br />1" =1000 ft (DSize)
<br />Fbd 6" + Hv @ Ql-24 -
<br />Bedding: Mirifi Drain Fabric
<br />or 6" well graded cobble
<br />to sand crushed stone.
<br />Channel Dimensions
<br />SEDCAD
<br />Model &
<br />Channel ID
<br />Channel
<br />Name
<br />Construct EMP -22
<br />least 1.4 AF Capacity
<br />�
<br />100 -yr
<br />Flow
<br />(cfs)
<br />Avg.
<br />Slope
<br />ON
<br />o . Future
<br />F
<br />..� EeVIP -22 �
<br />Flow
<br />Depth
<br />(ft)
<br />to o -= - to gat
<br />- �` rFuture �
<br />�,.� � /EMI' 22 � smar f \ / -� -EMP 22 �r -
<br />RipRap
<br />D50(nom)
<br />•.� � ;EMP -22 _
<br />NC -E
<br />2.8
<br />� I ;,, / , -
<br />Reconstruct Ponds IEMP -09b, 000W
<br />sr, c, and
<br />Crest
<br />0
<br />� /.,.,
<br />2.0
<br />� /#, ,,�
<br />of South Globe Hill Mine Area
<br />e _
<br />�. ..
<br />EMP -9a 9b &9c �_ �11,� 1
<br />� _ � I''- � ' >, � to Single Pond with a
<br />°n
<br />North Cresson 16
<br />i-1 -,. .ee• �'';'
<br />14.6
<br />-'.a /; f,.:5, /,� -y va - ,,.�;,, -
<br />Functional � " t , . ) � as 0 capacity of 9.5 AF total ;000
<br />EMP -9d removed ,; T or 6.7 AF Recolnstruction
<br />0
<br />r�
<br />-
<br />a
<br />Grass
<br />rrlr n a' .,�..
<br />r p
<br />i�' EMP -09/ �� � ,� �I i EMI' -09 / I.
<br />(l�l
<br />`J
<br />-\- Tributary to
<br />/(I.
<br />� .- ..EMP09'i,. %��
<br />-
<br />,:
<br />;. ..,,°
<br />98.�, Ac
<br />+u
<br />TnS tary to EMP -9 n
<br />2.5
<br />EMP -�9-
<br />_.. / i MP9 40.5rr•.p+. -..� 7 % /.,U r 837AcresC•I
<br />� °bF/73° Sl T bu a to t . XZi
<br />Bft 27
<br />1 1 ry
<br />1.7
<br />cam/
<br />-'
<br />`- (i ���
<br />onstruct EMP -21
<br />oat least 8.1 AF �1 �o
<br />Sa
<br />use in 2015' EM/ -21�:
<br />North Cresson 18
<br />/ '".rO e - �%'�1
<br />__ ��\, >> `°' A _` ✓.+� �� -i the Mine
<br />Tributa :` '- t1 d -;, Z
<br />ry . _ \ r si t s/ ®
<br />�- to the Mi
<br />4 RSa 9 >a �^�A�A�"A ��
<br />F_MP -21 � /f
<br />271
<br />/°� :for
<br />/ EMP -21
<br />.4 Ac
<br />a L
<br />Tributa to EMP - Be
<br />''�, ry
<br />6.0
<br />Tributary to1$U
<br />T
<br />/ x EM -2 -
<br />� P 1 93J
<br />, ..,'.;, r (i 4 Acres 55% Fl7� "/o =
<br />3 -0
<br />6 lI -
<br />.f /
<br />� g,,y► 1 ---�-
<br />/ r f .c •,!r_` P tryto ( _
<br />°. iii
<br />,..
<br />NC -D
<br />i f d slope
<br />224 Acres r
<br />8.3
<br />195. ores _ -
<br />4
<br />••
<br />Tributary to t `EMP -OSa '?
<br />1 4__
<br />_,..r. _� !. =� Tnkutadta - ✓ !
<br />1.5
<br />•a e� �. ,r
<br />'J EMP -08a
<br />/
<br />J+r/�
<br />two
<br />LLe^..� n - -�
<br />Grass
<br />o: >' ,.
<br />6 End of Year 2014
<br />_ Plan View
<br />1" =1000 ft (DSize)
<br />Legend
<br />Basin Name
<br />Area PGx
<br />101 Here 7z cfs- 100yr Discharge
<br />l0yrDischarge ai cis foncreFeet Zx IOyrVolume
<br />Eu Channel Name
<br />grnz
<br />100 yr Discharge (cls)
<br />10-yr Discharge (cfs)
<br />i m n a m m m Temporary or Existing Channel
<br />miSimimimim Proposed New Channel
<br />n i m i m i = i m i m 10 Mining Boundary
<br />8 End of Year 2016
<br />Plan View
<br />1" =1000 ft (DSize)
<br />2 F_ Depth
<br />(End of Year 2018
<br />�O) Plan View
<br />1" =1000 ft (DSize)
<br />Fbd 6" + Hv @ Ql-24 -
<br />Bedding: Mirifi Drain Fabric
<br />or 6" well graded cobble
<br />to sand crushed stone.
<br />Channel Dimensions
<br />SEDCAD
<br />Model &
<br />Channel ID
<br />Channel
<br />Name
<br />10 -Yr
<br />Flow
<br />(cfs)
<br />100 -yr
<br />Flow
<br />(cfs)
<br />Avg.
<br />Slope
<br />ON
<br />Bottom
<br />Width (ft)
<br />Flow
<br />Depth
<br />(ft)
<br />Chan.
<br />Depth
<br />(ft)
<br />RipRap
<br />D50(nom)
<br />North Cresson 1
<br />NC -E
<br />2.8
<br />5.13.5-
<br />Crest
<br />0
<br />1.5
<br />2.0
<br />Grass
<br />North Cresson 16
<br />NC -C
<br />4.9
<br />14.6
<br />3.5
<br />0
<br />1.3
<br />2.0
<br />Grass
<br />North Cresson 17
<br />NC -B
<br />14.3
<br />34.0
<br />2.5
<br />0
<br />1.7
<br />2.5
<br />3"
<br />North Cresson 18
<br />NC -A
<br />271
<br />56.7
<br />50
<br />6.0
<br />0.7
<br />3 -0
<br />6"
<br />North Cresson 20
<br />NC -D
<br />3.7
<br />8.3
<br />4.6
<br />0
<br />1.5
<br />2.0
<br />Grass
<br />Poverty GI 1
<br />PGA
<br />11.2
<br />23.4
<br />8.1
<br />0
<br />1.3
<br />25
<br />6"
<br />Poverty GI
<br />PG -B
<br />14.4
<br />29.0
<br />.7
<br />4.0
<br />1.2
<br />2
<br />3"
<br />Poverty GI
<br />PG -C
<br />9.4
<br />22.5
<br />3.4
<br />0
<br />14
<br />2.5
<br />3"
<br />Poverty GI4
<br />PG -D
<br />176
<br />38.2
<br />15.5
<br />4.0
<br />0.8
<br />2.5
<br />3"
<br />Poverty GI
<br />PG -E
<br />3.6
<br />8.4
<br />14.4
<br />0
<br />0.8
<br />2.0
<br />3"
<br />Poverty GI 17
<br />PG -F
<br />4.8
<br />10.9
<br />20
<br />0
<br />01.0
<br />2.0
<br />3"
<br />Poverty G118
<br />PG -G
<br />8.8
<br />20.1
<br />5
<br />0
<br />0.6
<br />1.8
<br />6"
<br />3 Channel Dimensions
<br />Table
<br />13 Post- Reclamation
<br />Plan View
<br />1" =1000 ft (DSize)
<br />- - -- _-
<br />15'
<br />(nom)
<br />Crest Area (Ac) - 2 ft. (typ)
<br />T lT r1
<br />Sediment Allowance
<br />(2 ft- typ)
<br />- -- spillway
<br />1 Elevation
<br />B A
<br />Base Area ( c)
<br />Pond Dimensions
<br />SEDCAD
<br />EMP-
<br />Depth
<br />Area
<br />Area
<br />Capacity
<br />Outlet
<br />E Spillway
<br />Spillway
<br />Model &
<br />Name
<br />Base
<br />Crest
<br />@Crest
<br />Pipe
<br />Width
<br />Elev.
<br />Structure ID
<br />(ft)
<br />(Ac)
<br />(Ac)
<br />(Ac -Ft)
<br />(in)
<br />(ft)
<br />N.Cresson 99
<br />EMP -8a
<br />15
<br />.22
<br />.52
<br />10.5
<br />None
<br />6.0
<br />N/A
<br />Poverty GIl
<br />EMP -09
<br />15
<br />.20
<br />4.5
<br />10.0
<br />None
<br />6.0
<br />Varies
<br />Poverty GI 2(
<br />EMP -21
<br />15
<br />.09
<br />.0.8
<br />10.0
<br />None
<br />6.0
<br />9965.0
<br />Poverty GI 2
<br />EMP -22
<br />10
<br />.05
<br />0.3
<br />1.6
<br />None
<br />60
<br />10029.0
<br />Notes:
<br />1. Pond sizes include 2 ft. deep allowance for sediment accumulation.
<br />2. Emergency Spillways are generally 24- inches below crest.
<br />4 EMP- Pond Geometry
<br />Table
<br />
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