Figures For Environmental Impact Statement For The Montanore...
Transcript of Figures For Environmental Impact Statement For The Montanore...
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Figures For Environmental Impact Statement For The
Montanore Project
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2
200
56Libby
Noxon
Troy Mine
Cabinet Mountains Wilderness
Kootenai National Forest
Proposed RockCreek Mine
Montanore Project
L i ncolncounty
Sanderscounty
0 10 20 miles
Kalispell
Detail area shown above
Great Falls
Missoula
HelenaHamilton
M o n t a n a
Figure 1. Location Map, Montanore Project, Kootenai National Forest.
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TT
T
T
T
TT
T
Li b byCreek
BigC
herr
y C
reek
Smearl Creek
Leigh Cre ek
Snowshoe Creek
Big CherryCreek
Bear Creek
CableCreek
Bear Creek
Poorman Creek
Ramsey Creek
Libby
Cre
ek
West Fish er Creek
Creek
West
F
ork
Rock
Swam
pCr
eek
Silve
rButte
Fisher River
Fisher River
Fishe
rRive
r
Miller Cre ek
Schreiber Creek
Howard
CreekHoward
Lake
Swam
p Creek
LeighLake
Clark
Fork
NoxonReservoir
Cabinet GorgeReservoir
LIBBY State Highway. 37
278
U.S. 2
231
LINCOLN
COUNTY
SANDERS
COUNTY
McDonaldMtn.
AlaskaPeak
Cable Mtn.
Shaw Mtn.
ElephantPeak
St. PaulPeak
ChicagoPeak
Rock Peak
RockLake
WanlessLake
RamseyPlant Site
LAD Areas 1 and 2
Midas
Creek
Little CherryCreek
TailingsImpoundment
Site
North Miller Creek 230-kVTransmission
Line
CabinetMountainsWilderness
LibbyLoadoutFacility
AccessRoad
Libby Adit Site
LINCOLNCOUNTY
SANDERSCOUNTY
Adits
Ore Body
LittleCherryCreek
NOXON
River
Kootenai River
Sedlak ParkSubstation
Rock LakeVentilation Adit
Figure 2. Location of Montanore Project Facilities, Alternative 2
±0 2 4
Miles
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CB
A
D
278
Littl
eC
herry
Cre
ek
Bea rC
reek
Cab
leCr
eek
Bear
Creek
Lib
byC
reek
Lib
byC
reek
Former Little C he rryCreek
SoilStockpile
SoilStockpile
Little CherryCreek Diversion
Channels
4H:1V
4H:1V
4H:1
V
3H:1V
3H:1V
Extent ofGeomembrane
(3,460 ft)
!
!
South SaddleDam Crest (3,718 ft)
DiversionChannel
North SaddleDam Crest (3,710 ft)
Main DamCrest (3,718 ft)
! !
Starter DamCrest (3,500 ft)
!
South StarterDam Crest (3,640 ft)
!!
Bear Creek RoadRealignment
Bear Creek RoadRealignment
!
Bear Creek RoadRealignment
C
C'
A
A'
B
B'
SeepageCollection
Dam
!
!
!
!
!
Channel A
Channel B
Libby Creek
E
E
E
E
E
E
New Ramsey PlantSite Access Road andUtility/Pipeline Corridor
"
231
6212
1408
4776
5182
4776B
6201
6214
4778
4784
5185
4783
6201
A
4774
4776
A
6212M
4774
A
8841
5003
1450
45184
4776F
4776
C
5181
6214
F
5183
4774
B
4784
B
1446
8
1440
4
6212L
6200
F
6199E
278L
6212H
6200
6214E
9977
8
5187
6212P
6200E
5185A
99778A
8838
5181
A
5184
A
5191
4778C
6200
278
Figure 8. Little Cherry Creek TailingsImpoundment Site, Alternative 2
±
Final Tailings Impoundment
Geomembrane
Borrow Area
Trunk Drain
Lateral Drain Under Dam
Lateral Drain Under Tailings
Cross-section Line
Private Land
Permit Area Boundary
Disturbance Boundary
Existing 40-foot ElevationContour
0 750 1,500
Feet
B
E E
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#0
#0Poorman Creek
RamseyCreek
HowardLake
Midas
Creek
Be ar Creek
Little
Cherry Creek
LibbyC
reek
Li b byC
reek
Howard
Creek
2317
6212
278
231
231
LAD 1
LAD 2
Little Cherry CreekImpoundment Site
Libby Adit Site
Ramsey Plant Site
New Ramsey Plant SiteAccess Road and MontanoreUtility Pipeline Corridor
4781
278
2316
6210
6212
1408
6201
6201A
5185
6210A
6212
M
2317
500314
404
5184
278X
5181
8749
5186
14403
6702
6212L
14405
6212H
5225
2317
B
5187
6212P
278V
5185A
6701
5170
5184
A
4781A
5181
A
8749A
6210
B
34
9
2 1
7
6
9
11
1315
15 14
24
35
22
16
14
13
25
16
26
21
34
23
36
27
33
28
10 12
18
19
30
31
11
18
10
19
24
12
7
232221
8
5
17
8
32
20
29
20
17
30
±0 1,500 3,000
Feet
#0 New Bridge
Trail - Foot Travel!! !! !! Mine Traffic Only
Mixed Mine Haul and Public Traffic
Mine Haul Traffic
New Open Road
Existing Road StatusSeasonal RoadRestricted Yearlong to Motorand Snow VehiclesRestricted Yearlong to MotorVehicles, Open Snow Vehicles12/1 - 4/30Private Road
Open RoadCabinet Mountains WildernessBoundaryPermit Area Boundary
Private Land
Figure 17. Roads Proposed for Use in Alternative 2
Proposed Road Status
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RamseyCree
k
Midas
Creek
Creek
Be ar Creek
Little
Cherry Creek
Li b byC
reek
Ho23
1
278
Libb
yCr
eek
±0 1,750 3,500
Feet
Alternative 3 DisturbanceBoundaryAlternative 4 DisturbanceBoundaryInventoried Roadless Area
Old GrowthRiparian HabitatConservation AreaCore Grizzly Bear Habitat
Private Land
Figure 22. Key Resources Avoided by Alternatives 3 and 4
R.3 1
W.
R.3 0
W.
T. 28 N.T. 27 N.
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LibbyAdit Site
LibbyPlant Site
Option #2Libby Intake
Upper LibbyAdit
ExistingLibby Adit
Option #1Libby Intake
Ore Body
Poorman Creek
Libby
Cre
ek
Howard CreekAlternativeTransmission LineAlignment
CabinetMountainsWilderness
RamseyCreek
Existing AditExtended toOre Body
Access Road andUtility Pipeline Corridor
4781
2316
6702
231
4779
Access Road, Utility Pipeline,and Conveyor Corridor
0 1,500 3,000
Feet
Permit Area Boundary
Disturbance Boundary
±Figure 25. Libby Plant Site and Adits, Alternatives 3 and 4
Private Land
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278
Littl
eC
herry
Cree
k
Bea rC
reek
Cab
leCr
eek
Lib
byC
reek
Former Little C he rryCreek
ReturnPump Pad
TailingsThickener
Facility
Bear Creek RoadRealignment
Bear Creek RoadRealignment
A A'
B B'
Subsoil
Stockpile
TopsoilStockpile
BorrowArea 2
Potential RockBorrow Area
"
BorrowArea 1
Rock ToeBerm
Seepage CollectionPond Crest (3,240 ft)
Cyclone SandDam Crest (3,664 ft)
Saddle DamCrest (3,680 ft)
Temporary WaterStorage Berm
Additional W
aste
Area if Needed
278Poorman Creek
E E
EE
3H:1
V2.
5H:1
V
2.5H
:1V
2.75H:1V
Makeup WaterWell Field
"
2.75H:1V
2.5H:1V
2.5H
:1V
Libby Plant SiteAccess Road and
Utility Pipeline Corridor "
Rock ToeBerm Crest(3,440 ft)"
Toe Drainand Trunk
Line Collection"
Toe Drain"
Toe Drain
Bear Creek RoadRealignment
"
Starter DamCrest (3,480 ft)
Lined Start-up WaterStorage Area
" "
"
""
"
"
"
"
"
231
6212
1408
47784776
6214
4776A
6201
5185
6201
A
4776B
4784
1450
4
6212M
5003
8841
4776F
1440
4
5184
4774
A
6214
E
4776
C
4783
5181
4774
B
14468
4774
6214
F
4778C
518347
84B
6212L
6212H
5187
6212P
5185A
8838
5184
A
5191
4778
Figure 26. Poorman Tailings ImpoundmentSite, Alternative 3
±
Final Tailings Impoundment
Geomembrane
Borrow Area
Drain
Cross-section Line
Private Land
Permit Area Boundary
Disturbance Boundary
Existing 40-foot ElevationContour
0 750 1,500
Feet
E E
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Years 1-5
Tailings surface elevation not to scale,shown for illustrative purposes only
EXISTING GROUND
STARTER DAM
CYCLONESAND DAM
SAND DAM CREST
DEPOSITION FROM DAM CREST
DEPOSITION FROM UPSLOPE
Years 6-10
Years 11-16
Years 17-19
Figure 29. Tailings Deposition over Time, Alternative 3
ROCK TOE BERM
SAND DAM CREST
SAND DAM CREST
SAND DAM CREST
EXISTING GROUND
STARTER DAM
CYCLONESAND DAM
ROCK TOE BERM
EXISTING GROUND
STARTER DAM
CYCLONESAND DAM
ROCK TOE BERM
EXISTING GROUND
STARTER DAM
CYCLONESAND DAM
ROCK TOE BERM
THICKENED TAILINGS
THICKENED TAILINGS
THICKENED TAILINGS
THICKENED TAILINGS
DEPOSITION FROMDAM CREST
DEPOSITION FROM DAM CREST
DEPOSITION FROM DAM CREST
DEPOSITION FROM UPSLOPE
3-5%
3-5%
DEPOSITION FROM UPSLOPE
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#0
#0Poorman Creek
RamseyCreek
HowardLake
Midas
Creek
Be ar Creek
Little
Cherry Creek
LibbyC
reek
Li b byC
reek
Howard
Creek
Relocated Bear CreekRoad and MontanoreUtility Pipeline Corridor
2317
6212
278
231
231
Libby Plant SiteAccess Road
PoormanImpoundmentSite
Libby Plant Site
Libby Adit SiteUpper LibbyAdit Site
LAD 1
LAD 2
Foot Trail toRamsey Creek
Section of 278to be Gravelled
4781
278
2316
6210
6212
1408
6201
6201A
5185
6210A
6212
M
2317
500314
404
5184
278X
5181
8749
5186
14403
6702
6212L
14405
6212H
5225
2317
B
5187
6212P
278V
5185A
6701
5170
5184
A
4781A
5181
A
8749A
6210
B
34
9
2 1
7
6
9
11
1315
1514
24
35
22
16
14
13
25
16
26
21
34
23
36
27
33
28
10 12
18
19
30
31
11
18
10
19
24
12
7
232221
8
5
17
8
32
20
29
20
17
30
±0 1,500 3,000
Feet
#0 New Bridge
Trail - Foot Travel!! !! !! Mine Traffic Only
Mixed Mine Haul and Public Traffic
Mine Haul Traffic
New Open Road
Existing Road StatusSeasonal RoadRestricted Yearlong to Motorand Snow VehiclesRestricted Yearlong to MotorVehicles, Open Snow Vehicles12/1 - 4/30
Private Road
Open RoadCabinet Mountains WildernessBoundaryPermit Area Boundary
Private Land
Figure 30. Roads Proposed for Use in Alternative 3
Proposed Road Status
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T
T
T
T
T
!
ExistingLibby Adit
Ore Body
R
Libby
Cree
k
LibbyAdit Site
St. PaulLake
RockLake
EastFork
BullR
iver
St. PaulPeak
RockPeak
ElephantPeak
Rock Creek
CabinetMountainsWilderness
ShawMountain
UpperLibby Adit
Option #2Libby Intake
Option #1Libby Intake
Upper LibbyAdit Site
Rock LakeVentilation Adit
ChicagoPeak
RamseyCreek
LibbyLakes
0 1,750 3,500
Feet ±Figure 33. Gound Water Dependent Ecosystems Inventory Areas, Alternatives 3 and 4
Permit Area Boundary
Ground Water DependentEcosystems Inventory Area
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T
T
T
T
T
T
T
T
!
!
!
Big Cherry Creek
Bear Creek
CableCreek
Poorman Creek
RamseyCreek
Libby
West Fisher Creek
West
ForkRock
Creek
Fishe
rRive
r
Miller Creek
HowardCreek
HowardLake
Swam
pC
reek
U.S. 2
NFSRoad
#231
RockLake
Midas
Creek
Little Cherry CreekImpoundment Site(Alts. 2, 3 and 4)
West Fisher Creek(Alt. E)
AccessRoad
Miller Creek(Alt. D)
NorthMiller Creek
(Alt. B)
Modified North Miller Creek
(Alt. C)
Existing BPATransmission Line
Bear Creek
Littl
e
CherryCre
ek
EastFork
RockCreek
St. PaulLake
U.S. 56
CABINETMOUNTAINS
WILDERNESS
Upper LibbyLake
Lower LibbyLake
WanlessLake
PoormanImpoundment Site
(Alt. 3)
LAD Area 2(Alts. 2, 3 and 4)
LAD Area 1(Alts. 2, 3 and 4)
Upper LibbyAdit Site
(Alts. 3 and 4)
Libby Adit Site(Alts. 2, 3 and 4)
Libby Plant Site(Alts. 3 and 4)
Ramsey Plant Site(Alt. 2)
Rock LakeVentilation Adit(Alts. 2, 3 and 4)
Creek
Nor
th
ForkEa st
Fork
Bull River
Snake Creek
MMCProperty
Po1
Ra2
L9
5 Structures
5 Structures
25 Structures
35 Structures
HabitatInventory
25 Structures
East
ForkBull
River
Ore Body
Rock
Creek
Bull R
iver
Schreiber Creek
LibbyCreek
Bull River
SwampCreek
Silver Butte
Fish
erRi
ver
Rock Peak
AlaskaPeak
ChicagoPeak
ShawMountain
CableMountain
Saint PaulPeak
McDonaldMountain
ElephantPeak
±0 4,000 8,000
Feet
Figure 35. Proposed Fisheries Mitigation,Alternatives 3 and 4
! Stream Survey Location
Bull Trout Critical Habitat
Generalized Mine Facility Location
Transmission Line Alternative
Cabinet MountainsWilderness Boundary
County Boundary
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T
T
T
T
T
T
TT
Libby
Creek
Smearl Creek
Leigh Creek
Big Cherry Creek
Creek
CableCreek
Poorman Creek
Ramsey
Creek
Libby
Creek
West Fisher Creek
Swam
pCr
eek
Fishe
rRive
r
Miller Creek
Schreiber Creek
Howard
Creek
HowardLake
Swam
pC
reek
LeighLake
U.S. 2
LINCOLN
COUNTY
SANDERS
COUNTY
RockLake
WanlessLake
Midas
Creek
PoormanImpoundment Site
(Alt. 3)
West Fisher Creek(Alt. E)
AccessRoad
Miller Creek(Alt. D)
Modified North Miller Creek
(Alt. C)
Existing BPATransmission Line
CABINETMOUNTAINS
WILDERNESS
Snowshoe Creek
Silver Butte Fisher River
BigChe
rry
Cre
ek
Cherry
Bear CreekLittle Cherry CreekImpoundment Site
(Alt. 4)
LAD Area 2(Alts. 3 and 4)
LAD Area 1(Alts. 3 and 4)
Libby Plant Site(Alts. 3 and 4)
Libby Adit Site(Alts. 3 and 4)
Alaska Peak
Upper Libby Adit Site(Alts. 3 and 4)
Rock LakeVentilation Adit(Alts. 3 and 4)
Saint PaulLake
Littl
e
Section of 4725 closedfor Alts. D and E only
BMU 8
4776B
6209E6787
B
14442
6205D67
02
6701
935
6200
6214
231
4776F
4776C
4776A
4778
4778C
6745
5192A
5192
1445
8
4778E
6200D
6200
F
6200E
6214F
Section of 4725 closedafter construction for Alt. C
and before constructionfor Alts. D and E
Rock PeakChicago Peak
Elephant Peak
Shaw Mountain
Cable Mountain
Saint Paul Peak
McDonaldMountain
2317
4781
4725
2316
BMU 5
BMU 2
BMU 6
BMU 7
±0 5,000 10,000
Feet
Proposed Road Access Change(Year-long)Proposed Road Access Change(Seasonal)Proposed Trail Access Change
Other Road
BMU Boundary
Generalized Mine Facility Location
Transmission Line AlternativeCabinet Mountains WildernessBoundaryCounty Boundary
Figure 36. KNF Proposed Road and Trail Access Changes for Wildlife Mitigation, Alternatives 3, 4, C, D, and E
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C B
A
278
Littl
eC
herry
Cre
ek
Bea rC
reek
Cab
leCr
eek
Bear
Creek
Lib
byC
reek
Lib
byC
reek
Former Little C he rryCreek
SoilStockpile
SoilStockpile Makeup Water
Well Field
4H:1V
4H:1V
4H:1
V
3H:1V3H:1V
Extent ofGeomembrane
(3,460 ft)
South SaddleDam Crest (3,718 ft)
DiversionChannel
North SaddleDam Crest (3,710 ft)
Main DamCrest (3,718 ft)
! !
Starter DamCrest (3,500 ft)
!
South StarterDam Crest(3,640 ft)
!!
Bear Creek RoadRealignment
Bear Creek RoadRealignment
!
Bear Creek RoadRealignment
SeepageCollection
Dam
!
!
!
!
D
E
Libby Plant SiteAccess Road and
Utility Pipeline Corridor
"
GraveledSection of 278"
Little Cherry Creek Diversion
Channels
"
" Channel B
Channel A
"
"
""
""
""
"
"
""
"
DiversionChannel "
231
6212
1408
4776
5182
4776B
6201
6214
4778
4784
5185
4783
6201
A
4774
4776
A
6212M
4774
A
8841
5003
1450
45184
4776F
4776
C
5181
6214
F
5183
4774
B
4784
B
1446
8
1440
4
6212L
6200
F
6199E
278L
6212H
6200
6214E
9977
8
5187
6212P
6200E
5185A
99778A
8838
5181
A
5184
A
5191
4778C
6200
278
Figure 38. Little Cherry Creek TailingsImpoundment Site, Alternative 4
±
Final Tailings Impoundment
Geomembrane
Borrow Area
Trunk Drain
Lateral Drain Under Dam
Lateral Drain Under Tailings
Private Land
Permit Area Boundary
Disturbance Boundary
Existing 40-foot ElevationContour
0 750 1,500
Feet
B
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!!!!
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!!
!! !!!! !! !!
!!!!
!!
!!!!
!!
!!
!!!!!!!!!!!!
!!!!
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!!!!
!!
!!!!
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!! !! !! !!
!!
!!
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#0
#0Poorman Creek
RamseyCreek
HowardLake
Midas
Creek
Be ar Creek
Little
Cherry Creek
LibbyC
reek
Li b byC
reek
Howard
Creek
Libby Plant Site AccessRoad and MontanoreUtility Pipeline Corridor
2317
6212
278
231
231
Little Cherry CreekImpoundment Site
Libby Plant Site
Libby Adit SiteUpper LibbyAdit Site
LAD 1
LAD 2
Foot Trail toRamsey Creek
Section of 278to be Gravelled
4781
278
2316
6210
6212
1408
6201
6201A
5185
6210A
6212
M
2317
500314
404
5184
278X
5181
8749
5186
14403
6702
6212L
14405
6212H
5225
2317
B
5187
6212P
278V
5185A
6701
5170
5184
A
4781A
5181
A
8749A
6210
B
34
9
2 1
7
6
9
11
1315
1514
24
35
22
16
14
13
16
26
21
34
23
36
27
33
28
10 12
18
19
30
31
11
18
10
19
24
12
7
232221
8
5
17
8
32
20
29
20
17
30
25
±0 1,500 3,000
Feet
#0 New Bridge
Trail - Foot Travel!! !! !! Mine Traffic Only
Mixed Mine Haul and Public Traffic
Mine Haul Traffic
New Open Road
Existing Road StatusSeasonal RoadRestricted Yearlong to Motorand Snow VehiclesRestricted Yearlong to MotorVehicles, Open Snow Vehicles12/1 - 4/30Private Road
Open RoadCabinet Mountains WildernessBoundaryPermit Area Boundary
Private Land
Figure 39. Roads Proposed for Use in Alternative 4
Proposed Road Status