HomeMy WebLinkAboutKisarail Hydroelectric Project Bethel, Alaska 1980r
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BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION
APPLICATION FOR PRELIMINARY PERMIT
KISARALIK
HYDROELECTRIC PROJECT
BETHEL. ALASKA
PREPARED FOR THE
ALASKA POWER AUTHORITY
BY
ROBERT W. RETHERFORD ASSOCIATES
CONSULTING ENGINEERS
ARCTIC DISTRICT OFFICE OF
INTERNATIONAL ENGINEERING CO •• INC.
A NCHORAGE.ALASK A
APRIL. 1980
DATI
BET II
010
c. 2
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APPLICATION FOR PRELIMINARY PERMIT
RELEASE TO LIBRARY
Authorized by
(1) The Alaska Power Authority applies to the Federal Energy
Regulatory Commission for a preliminary permit for the pro-
posed Kisaralik River Water Power Project, as described in the
attached exhibits. This application is made in order that the
applicant may secure and maintain priority of application for
a license for the project under Part I of the Federal Power
Act while obtaining the data and performing the acts required
to determine the feasibility of the project and to support an
application for license.
(2) The location of the proposed project is:
State or Territory:
County:
Township or nearby town:
Stream o~~ other body of water:
State of Alaska
None
Near Bethel, Alaska
Kisaralik River
(3) The exact name and business address of the applicant is:
Alaska Power Authority
333 West 4th Avenue, Suite 31
A~chorage, Alaska 99501
The exact name and business address of the person authorized
to act as agent for the applicant in this application is:
Eric P. Yould, Executive Director
Alaska Power Authority
333 West 4th Avenue, Suite 31
Anchorage, Alaska 99501
(4) The applicant is a public corporation of the State of Alaska,
Department of Commerce and Economic Development.
(5) The proposed term of the requested permit is 36 months .
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EXHIBIT 1
DESCRIPTION OF THE PROPOSED PROJECT
(1) Proposed Dam, Spillway, Power Tunnel, Powerhouse, Tailrace, and
Access Road
Dam: The dam wi 11 be a non·overfl ow rockfi 11 type founded on
bedrock. The rockfill will have a maximum height of 308 feet
from elevation 810 to 1118. The crest will be 1100 feet in
length and 20 feet in width with a 7-foot high concrete coping
wall on the upstream edge to elevation 1125. The rcickfill in
the dam, with upstream slope of 1.7h:1v and downstream slope
of 1. 5h: lv, wi 11 be zoned and compacted in 1 ifts with vi bra tory
compactors. The volume of the rockfill will be 2,500,000 cubic
yards. A concrete grout cap will be placed along the upstream
toe to grout the rock joint sets. The dam will be sealed
between the grout cap and the coping· wa 11 vlith asphaltic con-
crete pavement on the upstream face with an average thickness
of 12 inches. Oversize rock will be placed against the down-
stream face as required for earthquake stability.
A 20-foot high cofferdam placed upstream from the grout cap
will divert the river flow through the power tunnel during dam
construction. The cofferdam will not be removed.
A typical dam section is shown on Figure 1-1.
Spillway: The probable maximum flood for the Kisaralik River
has not been determined. For estimating purposes, an ungated
side channel spillway at elevation 1110 with a channel width
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ZONE II MAT£RtAL
IS" MAX. SIZE !>LACE a
COMPACT IN 21 LIFTS W/4
PASSES MIN. !0 TON ViBRATORY
COMPACTOR.
Et.e:v. sro
MAXIMUM DAM SECTION
Ci.£AN SEORO:~ I •
TYP. COPING WALL SECTION
0 a BAR W/!SP"'HCOXS fi
GROUTED 5'·0' JNJP B.R,.) •
PLACE BARS 2 ·0' EACH
SiOE OF GROUT PIPE:;
"OII.lt:NS!ONS IIORl.IAt. TO HEEL OF DAM
GROUT CA? DETAIL
KISARALIX RIVER
HYOROEL.ECTRIC POWER POTENTIA!.
TYPICAL DAM SECTION, GROUT
CAP a COPING WALL
FIGURE 1-1
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of 375 feet and a s 1 ope of 5% is expected to pass the probable
maximum flood (PMF) before overtopping the dam. The design
discharge of the spillway is 87,000 cfs.
The spillway will be excavated in bedrock around the right (north)
abutment of the dam and discharge into the side canyon downstream
from the powerhouse.
Power Tunnel and Intake: A horseshoe tunnel 650 feet in length and
minimum rock excavation diameter of 18 feet will lead from the
powerhouse through the right abutment to an intake structure
located upstream ~f the cofferdam. The tunnel will slope 0.020
downstream and be concrete 1 i ned to a finish diameter of 16 feet.
The concrete power· intake structure wi 11 be flared to reduce
entrance losses and be provided with a trashrack, having slots for
an emergency closure gate. The gate operator will be located above
the highwater at elevation 1125. The gate stem will be sealed in
an oil-filled housing to prevent freezing.
The downstream end of the tunnel will terminate in a trifurcation.
Two legs of the trifurcation will be connected to turbines in the
powerhouse for power generation and the third used as a bypass
during construction. The bypass will remain for future emergency
drawdown.
Powerhouse: The powerhouse will be an underground cavern
approximately 100 feet 1 ong, 65 feet wide, and 60 feet high
excavated in bedrock. Reinforced concrete will enclose the draft
tubes and spiral cases. The turbine pit, turbine floor,
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turbine floor wa 1 ~ s and generator floor wi 11 be reinforced
concrete. The walls above the generator floor and the ceiling
will be unlined, natural rock; rock bolted and/or gunited as
required for stability. Personne 1 and equipment wi 11 be protected
from spalling rock with an aluminum alloy shield suspended from
rock bolts in the crown of the cavern.
The powerhouse will contain 2 vertical Francis turbines and
generators rated at 15 MW each.
An appropriate sized overhead travelling crane will be installed
for erection and maintenance of the generating equipment.
The tunnel and powerhouse are shown on Figure 1-2.
Tailrace: Water will be returned to the river through a 22-foot
diameter unlined tunnel approximately 225 feet long.
Access Roads: There are no access roads to the site at the present
time. A winter access road approximately 69 miles in length from
Bethel to the project site will provide the means of construction
mobilization and demobilization.
A permanent road approximately 2 miles in l~n~th will b~ constructed
downstream from the po\.,erhouse to the concrete aggregate borrow
area. A gravel airstrip will be constructed at the end of the road
for project access with fixed wing aircraft.
Refer to Exhibit 4 for location of access roads and the airstrip.
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TUNNEt. SECTION
H ..
POWERHOUSE SECTION
K!SARALIK RiVER
HYDROELECTRIC POWER POTENTIAL
TUNNEL & POWERHOUSE SECTION
F!GURE 1-2
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(2) ProEosed Reservoir
Surface area-normal max W.S.
Storage capacity (50 ft. drawdow~)
Normal maximum surface elevation
Minimum water surface elevation
Drainage area
(3) Proposed Tran~mission line
length
Voltage
Number of interconnections
Conductor Size
6700 ac.
320,750 ac. ft.
1110 ft.
1060 ft.
544 sq.mi.
69 mi
138 kV
3
795.5 MCM, ACSR
A substation at the powerhouse will transform the generated
voltage of 13.8 kV to 138 kV. Utilization of 138 kV nominal
voltage and a 795 MCM conductor will assure adequate voltage
1 eve 1 s in Be the 1. Energy 1 osses will be 1 ow due to the
relatively large conductor chosen. An overhead line will
strike northwest for approximately 56 miles turning sharply
northward near Kwethluk and cross the Kuskokwim River. The
line will then strike southeast for 13 miles and terminate in
a substation near Bethel. The transmission corridor will
generally parallel the access road.
Refer to Exhibit 4 for location of the transmission corridor.
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(4) Energy Production From Proposed Installation
Average annual energy production
Number of turbines
Rated capacity
Number of generators
Rated capacity
(5) Project Lands
131,400 MWh
2
23,000 Hp each
2
15,000 kW each
Land Status: The power-development site is presently located
within the proposed Yukon Delta Wildlife Refuge {Federal Land
Policy Management Act of November 16, 1978, Emergency Order
204E). The 204E withdrawal is valid for 3 years. The Kisaralik
River is also considered under Emergency Order 204C, which has
not been invoked yet. This order would withdraw the river and
a 2-4 mile corridor along each bank for a period of 20 years
and be more restrictive than the 204E order. If bills HR38 or
59 pass, the Kisaralik might also be included in the 11 Wild and
Scenic River 11 system.
The Kisaralik River flows across federal, state, and Native
lands. Kisaralik Lake and the river downstream about 15 miles
(west boundary T3N, RSOW) are within 1 ands patented to the
State of Alaska. From there downstream about 67 river miles
(west boundary T8N, R65W), the river flows through lands owned
by the federal government and managed by the Bureau of Land
Management. Both segments are proposed as a wild river. The
remaining 25 miles of the Kisaralik River lie within lands
selected by the Akiak Village Native Corporation.
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KISARALIK HYDROELECTRIC PROJECT
Approximate Location of Project Boundary
(Refer to Exhibit 4, Drawings 1, 2 and 3)
Facil it~ Township*
Transmission Corridor
and Winter Acess Road
(69 Miles) 8N
8N
8N
8N
8N
7N
* Seward Meridian.
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Range
71W
70W
69W
68W
67W
67W
Section
23 (Near Bethel)
26
25
30
29
28
27
26
35
36
31
30
29
28
27
26
25
30
29
32
33
34
35
36
31
32
33
34
35
36
1
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Facilit~ TownshiE* Range Section
Transmission Corridor 7N 66W 6
and Winter Access Road 5
(Cont'd) 4
3
2
1
7N 65W 6
5
4
3
2
11
12
13
24
7N 64W 19
30
31
32
6N 64W 5
4
9
16
15
22
27
26
25
36
5N 64W 1
5N 63W 6
7
8
9
16
15
22
23
24
5N 62W 19
20
21
28
33
34
* Seward Meridian.
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Faci 1 ity Township* Ran~ Section
Transmission Corridor 4N 63W 1
and Winter Access Road 12
(Cont 1 d) 13
4N 62Y/ 18
17 (Near Powerhouse)
Dam, Spillway, Power-
house, and Tailrace 4N 62W 17
Reservoir 4N 62W 10
11
13
14
15
16
17
20
21
22
23
24
25
26
27
28
33
34
36
5N 60W 22
27
28
29
31
32
3.3
4N 61W 4
5
7
8
17
18
19
20
29
30
31
* Seward Meridian.
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Facility
Reservoir (Cont•d) 3N
3N
* Seward Meridian.
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62W
61W
Section
1
11
12
6
7
8
9
10
13
14
15
16
17
18
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{6) Additional Information on Development, Conservation, and
Utilization in the Public Interest of Regional Water Resources
The Bethel area presently utilizes diesel generation exclu-
sively and is. experiencing very high increases in electric
energy costs due to the recent escalation of fuel oil prices.
Alternate deve 1 opments have therefore been compared to the
basic case of continued exclusive diesel generation.
The most promising development plan has been found to be
development of the hydroelectric potential of the Kisaralik
River. It has been preliminarily assessed as feasible in
regard to cost. capacity, en vi ronmenta 1 impact, and 1 and
status.
The proposed hydroelectric site on the Kisaralik River has the
potential to supply the entire future needs of the Bethel area
through the year 2000. The energy from the project can be
absorbed by interconnecting numerous small villages surrounding
Bethel to a centralized power distribution point l0cated in
Bethel, which is in turn supplied via a 69-mile-long trans-
mission line from the project.
Over a 20-year period, assuming the project could go on-line
in 1986, a savings of 255,000,000 gallons of diesel oil could
be realized.
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EXHIBIT 2
DESCRIPTION OF STUDIES CONDUCTED OR TO BE CONDUCTED WITH RESPECT TO THE
PROPOSED PROJECT
(1} General Requirement
The proposed site was investigated during preparation of a
study for the A 1 as ka Power Authority by Robert W. Retherford
Associates, Anchorage, Alaska, entitled 11 Reconnaissance Study
of K,3aralik River Hydroelectric Power Potential and Alternate
Electric Energy Resources in the Bethel Area 11 dated February 1980.
In general, the proposed work wi 11 be performed, and the
results organized, in a manner suitable for an Application for
License before the Federal Energy Regulatory Commission. The
studies described below will be made to determine the technical,
economic, and financial feasibility of the project, taking
into account its environmental impacts.
Appropriate measures will be exercised at all times during the
field studies to prevent irreparable damage to the environment
of the proposed project. All test sites shall be restored as
closely as possible to their original condition to the satisfac-
tion of the Commission and the Bureau of Land Management.
(i} Studies,, Investigations 1 Tests and Surveys
• Geological: A preliminary site inspection, for field
evaluation of geology, soils, and geological hazards,
was made in the summer of 1979. This
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information was used for the preparation of a pre-
liminary appraisal of the suitability of the Kisaralik
site for hydroelectric development. The findings of
this preliminary geological appraisal indicated that
a dam could be constructed in the proposed location.
Further geo 1 ogi cal investigations will be made to
support preliminary designs and cost estimates.
These will include coring at both abutments of the
dam, at the intake structure, along the power tunnel,
and in the powerhouse area. It is anticipated that
approximately two corings will 'be made on each
abutment of the dam, two corings at the intake
structure, two corings along the tunnel alignment,
and two cori ngs in the powerhouse area. Surfi cia 1
geologica 1 samp l·i ngs wi 11 be used to confirm the
orientation of bedding planes predicted from core
drilling activities. Copies of geological reports,
results of tests and analyses, and other information
secured during these investigations shall be furnished
to the Commission.
e Surveys: The surveys to be performed wi 11 include
those necessary for preparing Exhibits J, K, and L
and other appropriate sections of an Application for
License. Surveys will be conducted by on-the-ground
sur·vey crews and by aerial photogrammetry.
The ground crews will establish control and premark
panel points for the aerial photogrammetric work,
set permanent bench marks, make ties to geological
investigations and prepare detailed topography of
the pri nci pa 1 features of the production plant.
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Upon establishment of ground control and setting of
pane 1 s, vert i ca 1 aeri a 1 photography at a nomina 1
photo scale of }'I = 3,500' will be made dur·ing the
first acceptable \•leather in the area. Following·
acquisition of the aerial photography, topographic
maps of the project area, including the transmission
route and access road, will be made at a scale of
111 = 1,000 1
, with a 20 1 contour interval.
t Hydrological: Using data synthesized from nearby
drainage basins and existing climatological records
at Bethel, an estimated discharge per square mile
was prepared for the preliminary appraisal report.
This information allowed for preliminary sizing of
the dam, power tunne},, and turbine-generator capacity.
A gauge will be installed at or near Lower Falls on
the Kisaralik for the purpose of determining the
stage and flow of the river. The design, location,
and time of installation of the gauge, the rating of
the station, and the determination of the flow of
the river will be made under the supervision of, or
in cooperation with the cognizant office of the U.S.
Geological Survey. Records of the stage and flow of
the river shall be kept for use in design of the
project and will be made available, to the commission.
The flow of the river measured at this station will
be correlated with flows of comparable streams and
with precipitation data to establish a synthetic
stream flow record. This record will be used for
reservoir operations studies to confirm the dam
height, installed capacity, and other parameters.
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• Reservoir O£!erat-ions: Using preliminary hydrological
study data, the drawdown during the driest period
was evaluated to determine the minimum dependable
flowrate, and thereby estimate the prime capacity of
the project.
After refined hydrological information is developed,
a computerized reservoir operation study wi 11 be
made. Prime capacity, optimum dam height, and
optimum i nsta 11 ed capacity wi 11 be determined.
Economic constraints (including reserve requirements
and operation and maintenance) will be evaluated and
an installed capacity and combination of turbine-
generator sets will be determined.
• Project Structures: Following a review of preliminary
geo'logical, hydrological, and reservoir operation
studies, the cost estimate for the dam, spillway,
power tunnel, powerhouse, tailrace, and transmission
line (including the winter access road), and the
permanent access road from the airport to the dam
site were prepared.
During the period of the preliminary permit, refined
cost estimates will be prepared for the project.
This cost estimate will include engineering costs,
interest during construction, and other intangible
costs. Cost estimates will be prepared for alterna-
tive sites.
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• Alternatives: Several alternatives have been evaluated
for the preliminary appraisal report, generally on
the basis of cost, environmental, and power generation
potentia 1. The alternatives included hydroe 1 ectri c
potential, coal and wood energy conversion, geothermal
potential, wind potential, transmission interti~s,
and conservation. The Kisaralik River Hydroelectric
project was selected as the alternative most suitable
for development.
A brief summary of the alternative development plans
wi 11 be prepared. A summary of the en vi ronmenta 1
impacts anticipated from the construction of the
alternatives wi 11 be co 11 ected. Oeta i1 s regarding
viable altematives, including costs, feasibility,
and power generation will be collected.
• Economic Analysis: The project economic analysis
will consider both annual cash flows and net present
worth when se 1 ect i ng the recommended deve 1 opment
p 1 an. Various deve 1 opment p 1 ans wi 11 be analyzed
with respect to annual cash flow for capital and
operating costs to identify those plans which can be
supported by anticipated system revenues during the
earlier years of project operation.
o Environmental Assessment: A general overview of
potential projects in the Bethel area, to eliminate
projects with heavy environmental impacts, particularly
with respect to anadromous fish, wi 11 be made.
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A detailed report, presenting the existing socio-
economic status and flora and fauna in the project
area, will be prepared. The effect of the project
on man and the environment will be evaluated and
mitigative measures proposed.
(ii) Access Roads: No new roads will be built for the purpose
of conducting the studies.
(2) Work Plan for New Dam Construction
(i) Description of Activities: It is not anticipated that any
field study, test or other activity will significantly
alter or disturb lands or waters in the vicinity of the
project. It is anticipated that a BLM permit will be
required for conducting this work. Fo 11 owing are the
guidelines which the applicant intends to follow during
the course of the field studies proposed above:
• Access for personnel and equipment will be by air,
water, or on foot. There will be no road construction
under this preliminary permit.
1 No trees over 6-inch diameter at breast height will
be cut without prior authorization.
• The tent camp will be maintained in a sanitary
condit-ion. Burnab·le refuse will be burned in a
fire-safe container. All unburnables will be placed
in a sanitary landfill. All other materials, with
the exception of survey monuments and stream gauge,
will be removed. This includes, without limitation,
containers, tents, drilling equipment, etc.
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• No waste or by products wi 11 be di schat·ged into
streams. Storage facilities for materials capable
of causing water pollution, if accidently discharged,
will be located so as to prevent any spillage into
waters or channels leading into water.
• If, during activities under the permit, items of
substantial archeological or paleontological value
are discovered, the area so affected will be vacated.
Proper authorities will be notified and no further
work in the affected area will resume until written
approval is given.
e The permittee will protect the scenic esthetic
values of the area under permit, and adjacent land,
as far as possible within the authorized use. Test
pits will be backfilled to the original contour.
Harassment of wildlife will be cause for dismissal
of the offender.
• Activities will be strictly limited to geologic
exp 1 oration, core drilling, surveying and other
items as they may pertain to the gathering of
information for an Application for License to
construct the project.
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(ii) Permit Schedule
-·
ACTIVITY 1980 1981 1982 --"--
1. Geological Studies b:o aro
I
2. Surveying & Mapping ~trru o::IIJ
.,..... 3. Hydrological Studies E I .-rn ~---'
4. Reservoir Operation Studies Cl...~l rn >,en
~ r-11
5. Project Structures Design -~~1 -~ 11 I I
.!= >.1 6. Alternative Developments r-,........ II T l I
E.SI
Cl... 7. Economic Analysis 4-~I a:r::o
8. Environmental Assessment O:::lbrr
(!) ~ ... o:::r::rJ g.::::,
9. Definite Project Report l1:l
0::: tn :::l I Vl
Vl I 10. License Application .......
I
I 11. Reports to FERC I I I I .i I I I
I
NOTE:
A 11 activities may be acce 1 era ted or modified within the 36-month period
to conform with conditions encountered.
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1983
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APA18/F
EXHIBIT 3
COST AND FINANCING
(1) Cost of Proposed Work
Geological studies $225,000
Surveying & mapping 150,000
Hydrological studies 45,000
Reservoir operation studies 10,000
Project structure design 80,000
Alternative developments 20,000
Economic Analysis 30,000
Environmental assessment 175,000
Subtotal 735,000
Definite Project Report 80,000
License Application 20,000
Total 1835,000
(2) Source of Financing
The applicant will receive funding for studies from State of
Alaska general fund appropriations.
(3) Proposed Market and Power Sale Revenue
Electrical energy is currently supplied to Bethel and the
surrounding villages from a number of sources. The largest
single source of power is Bethel Utilities. The electrical
load in Bethel is some 5 times greater than the combined total
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of a 11 vi 11 ages within 50 miles of Be the 1. A 11 e 1 ectri ca 1
energy in the area is produced by di ese 1 powered generators,
and possibly a few gasoline powered units serving individual
homes. Following is a tabulation of known village power
sources.
Location Size (kW)1 Owner 1
Aki achak 4 330 City
Akiak 250 City
Akolmuit 2 450 AVEC
Atmautluak 50 Vi 11 age Corp
Bethel 8400 3 Be the 1 Ut i1 it i es
Eek 206 AVEC
Kwethl uk 4 125 Village
Napakiak 4 150 Napakiak Corp.
Napaskiak 4 200 Napaskiak Power
Oscarvi11e Unknown Vi 11 age
Tul uksak 4 Unknown Private
1 In addition to the units listed, most schools have standby
generators or provide their own prime power.
2
3
4
Kasigluk and Nunapitchuk combined are often referred to as
Ako 1 mui t.
Installing additional 2100 kW.
From 1978 survey, Alaska Department of Energy and Power
Development.
There are no interconnections between these systems, with one
exception. Kasigluk and Nunapitchuk are interconnected and
are often referred to as Akolmuit.
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The cost of power to be generated by the proposed project
assumes a 1986 start-up date. A comparison of the cost of
power from the proposed project with continuing use of diesel
generation is as follows:
Hydro Diesel
Mills/kWh t4i 11 s/kWh
Interest Rate 1986 2000 1986 2000
2% 211 114 162 323
5% 295 149 165 329
7% 365 178 168 334
9% 438 208 171 340
It is not anticipated that these rates will be charged to the
consumer. The breakeven po·int for diesel vs. hydroelectric
energy wi 11 probably not occur unt i1 1995. Some form of
subsidized energy will be required until the project is capable
of deriving sufficient revenue to meet the debt-service require-
ments. The details of this subsidized arrangement have not
been finalized. The applicant is, however, in a position to
make the required arrangements.
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EXHIBIT 4
MAPS
Maps showing: 1) location of the project, 2) the relative location
of principal project features, and 3) the project boundary, are
attached as Exhibit 4.
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THIS DRAWING IS A PART OF THE APPLICATION FOR
PRELIMINARY PERMIT MADE BY THE UNDERSIGNED
THIS~ DAY OF APRIL 1980.
, EXECUTIVE DIRECTOR
N
LAND STATUS
STATE SEL ECTION
NAT IV E VI LLAGE AND RE GION AL
CORP. SELECTIONS
THE PROJECT AREA IS LOCATED WITHIN THE PROPOSED
YUKON DELTA WILDLIFE REFUGE . THE KISARALIK
RIVER HAS BEEN DESIGNATED FOR STUDY FOR
INCLUSION IN THE NATIONAL WILD AND SCENIC
RIVER SYSTEM .
....... 3-Z7-80
.., O.E.P •
·-·----
A~ID----
..,. _____ 1
ALAS KA POWER
AUTHORIT Y
DWG NO . I
......
CttiCKED
ICAU
R.W.B .
C.H.S ,
"
ALASKA POWER A UTHORITY
BETHEL , A LASKA
KISARALIK PROJECT
PROJECT AREA
GENERAL ARRANGEMENT
PROJECT BOUNDAR
I • UOOOO
~INTERNATIONAL ENGINEERING COMPANY, INC
FERC NO. EXHIBIT4 SHEET I of3
THIS DRAWING IS A PART OF THE APPLICATION FOR
PRELIMINARY PERMIT MADE BY THE UNDERSIGNED
THIS~ DAY OF APRIL 1980 .
, EXECUTIVE DIRECTOR
N
SCAL[ ~p.,!iwii-~"iiwiilw5-iil-5wilM5-l0~~~5;--iiii~~~~---~i NIL ll
ooan __ •_-_zr_-_•o_
O.E.P. n ____ _
-·----n ·-·----n·------1
ALASKA POWER
A UTHORITY
DWG NO . l
DI:MJII R.W.B.
CHIQt[D C.H.S.
ICAL( I • I MILE
ALASKA POWER A UTHORITY
BETHEL , ALASKA
K ISARALIK PROJECT
PROJECT AREA
RESERVOIR
~ INTERNATIONAL ENG/ EERING COMPANY, IN
~ §:iE~:=.:..-
FERC NO. EXHIBIT 4 SHEET 2 of 3
THIS DRAWING IS A PART OF THE APPLICATION FOR
PRELIMINARY PERMIT MADE BY THE UNOERSIG,..'.ED
THIS~ DAY OF APRIL 1980.
, EXECUTIVE DIRECTOR
N
O E P
AL ASKA PO WER
AUTHORITY
2000 •OOO
ALASKA POWER AU T HORI TY
BETHEL , ALASKA
KISARALIK PROJECT
PROJECT FACILITIES
DAM AND POWERHOUSE
FERC NO . EXHIBIT 4 SHEET 3 of 3