HomeMy WebLinkAboutAPA471SUSITNA HYDROELECTRIC PROJECT
TASK 7 ENVIRONMENTAL
SUBTASK 7.04
WATER RESOURCES ANALYSIS
REVIEW OF EXISTING WATER RIGHTS
IN THE SUSITNA RIVER BASIN
DECEMBER 1981
Prepared by:
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no.471
SUSITNA HYDROELECTRIC PROJECT
TASK 7 -ENVIRONMENTAL
SUBTASK 7.04 -WATER RESOURCES ANALYSIS
REVIEW OF EXISTING WATER RIGHTS
IN THE SUSITNA BASIN
Prepared by
Li nda Perry Dwight
Water Resources Consultant
P.O.Box 3613 DT
Anchorage,Alaska 99510
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Prepared for
Acres American Incorporated
Buffalo,New York
December 1981 .
ARLIS
Alaska Resources .
Library &Information Services
Anchorage,Alaska
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TABLE OF CONTENTS
SUM::MA.RY AND CONCLUS IONS••••••••••••G •0 0 • 0 •0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
INTRODUCTION.• • • • • • • • • • . . • . • . • • • • • • • • • • • • • • • . • • • • • • • • • • • • • • • • • 3
WATER RIGHTS DATA.............................................5
SEARCH STRATEGY AND DATA INTERPRETATION.......................7
DISCUSSION ••lit lit ••••••••••"• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •9
REFERENCES ••••.•.••..•••••••••••••.•.•••••0'• • • • • • • • • • • • • • • • • ••21
APPENDIX
ARLIS
Alaska Resources
Library Ie.Information services
Anchorage,Alaska
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Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
List of Tables
Susitna Township Grid
Conversion of Surface Water and Groundwater
Appropriations to Equivalent Flow Rates
Summary of Surface Water and Groundwater
Appropriations in Equivalent Flow Rates
Water Appropriations Adjacent to
the Susitna River
Fish Creek Township Grid
Willow Creek Township Grid
Little Willow Creek Township Grid
Montana Creek Township Grid
Chulina Township Grid
Susitna Reservoir Township Grid
Chulitna Township Grid
Kroto-Trapper Creek Township Grid
Kahiltna Township Grid
Yentna Township Grid
Skwentna Township Grid
Figure 1
Figure 2
Figure 3
Figure 4
List of Figures
Location of Township Grids in the Susitna River Basin
Water Rights in the Mainstem Susitna River Corridor -
Talkeetna and Talkeetna Mountain Quadrangles
Water Rights in the Mainstem Susitna River Corridor -
Tyonek and Anchorage Quadrangles
Water Rights in the Mainstem Susitna River Corridor -
Talkeetna (B-1)Quadrangle
SUMMARY AND CONCLUSIONS
Water rights for 18 different areas in the Susitna River basin were
examined,and the amount of surface water or groundwater appropriated
for each type of use was tabulated.A summary table was prepared to
indicate the total amount of surface water and groundwater appropriated
within each area.This summary indicated that the only significant uses
of surface water in the Susitna River basin occur in the headwaters of
the Kahiltna and Willow Creek township grids.Its principal use is for
mining operations on a seasonal basis.No surface water withdrawals
from the Susitna River are on file with the Alaska Department of Natural
Resources (DNR).Groundwater appropriations on file with DNR for the
mainstem Susitna River corridor are minimal,both in terms of numbers of
users and the amount of water being withdrawn.An analysis of topo-
graphic maps and overlays showing the specific location of each recorded
appropriation within the mainstem Susitna River corridor ind~cated that
neither the surface water diversions from small tributaries nor the
groundwater withdrawals from shallow wells are likely t o.:be adversely
affected by the proposed Susitna hydroelectric project.
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INTRODUCTION
The application for license for the proposed Susitna hydroelectric
project must include a statement regarding the effects of the proposed
project on existing water rights.The applicant must apply to the State
of Alaska for a water right to appropriate,divert,and use water for
generating power.A copy of the water rights application must also be
included in the application for license,which will be submitted to the
Federal Energy Regulatory Commission (FERC).
In a survey conducted during January 1981 (Dwight and Trihey 1981),
agencies and special interest groups asked the following questions:
1.what permitted or licensed water use rights presently exist in
the Susitna River basin;
2.would operation of the dam allow present day out-of-stream
diversions to be maintained;and
3.would postproj ect flows result in.a change of water table
conditions that would adversely affect domestic wells or
surface water supplies.
This report provides an interpretive summary of existing water rights in
the Susitna River basin to enable Acres American Inc.(Acres)to prepare
the required information for the application for license and to assist
in identifying any ~dverse effects that the proposed project might have
on existing water rights claims.
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WATER RIGHTS DATA
Water rights are administered by the Alaska Department of Natural
Resources (DNR). The legal documents protecting water rights are
certificates,permits,and applications.Certificates are issued for
water rights that have been perfected,i.e.,the water is being bene-
ficially used.Permits are issued for water rights that are waiting
final approval following the construction of structures necessary to use
the water.When DNR accepts an application to develop water rights,the
priority date of appropriation is established.However,approval pends
on the development and perfection of the water right as well as adjudi-
cation of the quantity requested to protect prior appropriations.
DNR's Water Management Section has computerized certain data from the
water rights case files on all certificates,.permits,and applications
pending.Computer files are updated monthly.The computer files
contain the following information:
1.water rights identification number and standard industrial
code classification number for each type of water use associ-
ated with that water right;
2.the quantity of water appropriated and diverted,expressed as
c~bic feet per second (cfs),gallons per day (gpd),acre-feet
per year (ac-ft/yr),or full flow;
3.the source (stream or river,spring,well)and well depth;
4.the priority date and number of days during the year that the
water is used;
5.the lattitude/longitude coordinates for the point of diversion
and point of use,and the quarter section of the township
where this occurs;
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6.the legal status (certificate,permit,or pending)of the
water right;and
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7.the appropriator's name.
Case files for certificates,permits,and applications pending are
stored in the district offices of DNR's Division of Land and Water
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Management.
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SEARCH STRATEGY AND DATA INTERPRETATION
In response to a request from Acres,DNR's Water Management Section
staff searched the computer files and generated a printout reflecting
all data that had been coded as of September 10,1981.To facilitate
the search,they selected township grids for 17 different segments of
the river basin.They sent the computer printout and township list to
Acres on September 24 (Brown 1981).
As the first step to interpreting the data,the 17 township grids were
mapped at scale 1:250,000 and transferred to a 1:1,000,000 map
(Figure 1).The map was reviewed with DNR Water Management Section
staff.Corrections and additions were made,and the Susitna reservoir
township grid was included.No other townships were considered neces-
sary for the search at this time (G.Doggett,pers.corom.; P.Janke,
pers.corom.; G.Prokosch,pers.corom.).
To interpret the types of water appropriations identified on'the com-
puter printout,the listing that DNR has developed from the standard
industrial code was obtained (S.Mack,pers.corom.).Six of the town-
ship grids contained no data:Kashwitna,Sheep Creek,Talkeetna,
Tokositna,Happy,and Alexander Creek.Suromary tables were developed
for the remaining township grids.Each table displays information on
certificates,permits,and applications pending.For each type of water
use,as described by the standard industrial code classification,the
amount of surface water or groundwater appropriated is expressed in cfs,
gpd,or ac-ft/yr.The number of days in the year that the water use is
"active"is noted.The total amount of surface water and groundwater
that has been appropriated in each township grid is tabulated in either
cfs,gpd,or ac-ft/yr (see Table 1).Cubic feet per second and gallons
per day express the total amount of water as a flow rate;ac-ft/yr
expresses that same amount of water as an annual storage volume.
In order to compare total water use by township grid,the three flow
rates were converted to a single equivalent flow rate,expressed in both
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cfs and ac-ft/yr (Table 2).The results were summarized to compare
total surface and groundwater use by township grids in equivalent flow
rates (Table 3).
Finally,a 1:250,000 scale overlay was produced with DNR's geoprocessor,
which identified the specific location of each recorded water right
along the·mainstem Susitna River corridor.This overlay was placed on
the corresponding U.S.Geological Survey (USGS)topographic maps for the
purpose of identifying potential areas of concern (Ff.gur-es 2 and 3).
Five areas were identified where appropriations existed within the
vicinity (less than one mile)of the mainstem Susitna River.Two areas
were examined further on a :1:63 ,360 overlay and USGS topographic map
(Figure 4).
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DISCUSSION
Based on a comparison of equivalent cfs and ac-ft/yr (Table 3),the only
significant uses of surface water in the Susitna River basin occur in
the headwaters of the Kahiltna and Willow Creek township grids.Its
principal use is for mining operations on a seasonal basis.Water
appropriations are 125 cfs or 37,000 ac-ft!yr in the Kahiltna area and
18.3 cfs or 5,660 ac-ft/yr in the Willow Creek area.Along the mainstem
Susitna River,only .153 cfs or 50 ac-ft/yr of surface water has been
appropriated for all purposes ..Water appropriations in other areas are
even less significant.The following assessment of project effects on
existing water rights is focused specifically on the mainstem river
corridor.Data on existing water rights for the remaining township
grids in the Susitna aiver basin are summarized in the Appendix.
The Susitna township grid,which encompasses 30 townships,extends from
the proposed impoundment area at Devil Canyon downstream to the estuary.
As shown in Table 1,both surface (4,900 gpd)and groundwater (7,600
gpd)appropriations are primarily for single family and multi-family
homes.A small amount of water is used year-round for watering
livestock.The greatest usage occurs during summer months for
irrigating lawns,gardens,and crops.The largest single use of surface
water is for placer gold operations.
As shown on Figures 2 and 3 and listed on Table 4,there are only five
areas where water appropriations are located within one mile of the
mainstem Susitna River.There are no surface water diversions recorded
that draw water directly from the Susitna River or its adjoining side
channels and sloughs.
Immediately downstream from the Delta Islands,on the west bank of the
Susitna River,a single family dwelling has a certificate for 650 gpd of
groundwater from a well of unlisted depth.The certificate includes .5
ac-ft/yr for crop irrigation for three months.About six miles below
Talkeetna,and 0.25 miles inland from the west bank of the Susitna
River,a single family dwelling has a certificate for 500 gpd of ground-
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water from a 90-foot deep well.Postproject water surface elevations
for the mainstem river below Talkeetna are expected to be approximately
three feet higher during winter months and from one half to one and a
half feet lower during the summer months (R&M Consultants,Inc.In
press)• Such a moderate.range of fluctuation is not expected to
adversely affect the groundwater zones being tapped by two small capa-
city domestic wells in the Delta Islands and Trapper Creekateas~
In the vicinity of Sherman,at mile 258 of the Alaska Railroad,Sherman
Creek and an unnamed stream have been appropriated for two single family
dwellings (325 gpd)and lawn and garderi irrigation (50 gpd).The
surface water appropriations at Sherman are 50 to 100 feet above the
present elevation of the Susitna River and would not be influenced by
changes in water surface elevation of the Susitna River.
In Talkeetna,groundwater from three shallow (20,27,and 34 f t )wells
have been appropriated for a single family dwelling (500 gpd),the grade
school (910 gpd),and the fire station (500 gpd).In the vicinity of
Chase,between mile'235 and 236 of tll~A:LC3.ska.Rai:I.l:'9~Cld.,_~E;Ye_ral unnamed
streams,lakes,and creeks have been appropriated for single family
dwellings (L,250 gpd), lawn and garden irrigation (l00 gpd), and crops
(1 ac-ft/yr).The appropriations in the vicinity of Talkeetna and Chase
were examined on a 1:63,360 overlay and USGS topographic map (Figure 4).
--The ----three'shallow ---wells'{20-34£tdepth)recordedin'-TaTlCee'fiia.are
---~.,approximately 1.5~milesdownstream from the-~onfi~en~e of the Chulitna-
and Susitna Rivers and 0.13 miles downstream from the confluence of the
Talkeetna River.From all visual indications,the Talkeetna River
appears to be up gradient and is the principal recharge source for these
wells.It appearS that the water surface elevation of the Susitna River
could be influencirig-thegroundwater'level by providing the down
gradient base elevation for the water table.However,the anticipated
maximum decrease in average monthly water surface elevation of the
Susitna River near Talkeetna is forecast to be from one to one and a
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half feet (R&M Consultants,Inc.In press).At worst,this might reduce
the water surface elevations of the local water table one to one and a
half feet.
In the vicinity of Chase,all surface water appropriations are from
small tributary streams and lakes at an elevation of 450 to 500 ft mean
sea level (msl).The Susitna River is approximately 0.25 miles from the
nearest appropriation and is at an elevation of approximately 400 ft
msl.The anticipated ch~nge in water surface elevation for the mainstem
Susitna River near Chase is unlikely to have any affect on surface water
diversions from small streams or lakes located 50 to 100 ft above the
river on the hillsides.
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Table 1.Susitna Township Grid
TYPE SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS DAYS
cfs gpd ac-ft/yr OF USE cfs gpd ac-ft/yr OF USE
Certificates
Single family dwelling 4,500 365 5,440 365
75 214
2-4 unit housing 1,200 365
grade schools 910 334
Fire protection 500 365
Animals 63.5 365 94 365
Lawn and garden irrigation 200 184
100 153 .5 60
General crops 12.5 153 5.5 91
Total 4,938.5 12.5 8,144 6.0
I Permits
t-'w
I Single family dwelling 250 365
Vegetables 1 153
Total 250 -1
Pend ina
Single family dwelling 75 365 1,000 365
250 214
Lawn and garden irrigation 50 183
Placer gold .1 184
Total .1 125 1,250
Total .1 5,313.5 13.5 9,394 6.0
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Table 2.Conversion of Surface Water and Groundwater Appropriations
to Equivalent Flow Rates
TOWNSHIP GRID SURFACE WATER EQUIVALENT GROUNDWATER EQUIVALENT
cfs gpd ac-ft/yr Total cfs gpd ac-ft/yr Total
Equivalent Susitna .1 .00824 .0446 .153 .015 .0348 .0498
cfs Fish Creek .000116 .000116 .003 .00300
Willow Creek 18.3 .0226 18.3 .153 .000330 .153
Little Willow Creek .000581 .00555 .00613 .00190 .00190
Montana Creek .00518 .0144 .0196 .0400 .326 .366
Chulina .000439 .00278 .00322 .000831 .000831
·Susitna Reservoir .00465 .00465
Chulitna .00329 .00329
Kroto-Trapper Creek .000930 .0555 .0564
Kahiltna 124 1.02 125
Yentna .00155 .00155
Skwentna .000556 .00495 .00551 .000775 .000775
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I-'Equivalent·Susitna 36.4 5.72 13.5 50.0 10.3 6.00 16.3U1
I ac-ft/yr Fish Creek .021 .0210 2.24 2.24
Willow Creek 5,650 7.10 5,650 128 .100 128
Little Willow Creek .420 1.00 1.42 1.37 1.37
Montana Creek 3.65 4.20 7.85 28'.1 236 264
Chulina .297 .500 .797
.601 .601
Susitna Reservoir 3.36 3.36
Chulitna 2.38 2.38
Kroto-Trapper Creek .672 10.0 10.7
Kahiltna 36,700 302 37,000
Yentna .565 .565
Skwentna .402 1.50 1.90 .560 .560
Conversion factor (to three significant figures)
1 gpd =.00000155 cfs
1 cfs =1.98 ac-ft/day
X gpd x .00000155 cfs =y'cfs
X cfs x 198 ac-ft/day x #days =Y ac-ft/yr
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Table 3.Summary of Surface Water and Groundwater Appropriations
in Equivalent Flow Rates
TOWNSHIP GRID SURFACE WATER EQUIVALENT GROUNDWATER EQUIVALENT
cfs ac-ft/yr cfs ac-ft/yr
Susitna .153 50.0 .0498 16.3
Fish Creek .000116 .02100 .00300 2.24
Willow Creek 18.3 5,660 .153 128
Little Willow Creek .00613 1.42 .00190 1.37
Montana Creek .0196 7.85 .366 264
Chulina .00322 .797 .000831 .601
Susitna Reservoir .00465 3.36
Chulitna .00329 2.38
Kroto-Trapper Creek .0564 10.7
Kahiltna 125 37,000
Yentna .00155 .565
Skwentna .00551 1.90 .000775 .560
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Table 4.Water Appropriations Adjacent to the Susitna River
LOCATION 1 ADL NO.TYPE SOURCE (DEPTH)AMOUNT DAYS OF USEI
Certificate
T19N R5W 45156 single family dwelling well (?)650 gpd 365
general crops same source .5 ac-ft/yr 91
Certificate
T25N R5W 43981 single family dwelling well (90 ft)500 gpd 365
Certificate
T26N R5W 78895 single family dwelling well (20 ft)500 gpd 365
200540 grade school well (27 ft)910 gpd 334
209233 fire station well (34 ft)500 gpd 365
Certificate
T27N R5W 200180 single family dwelling unnamed stream 200 gpd 365
lawn and garden irrigation same source 100 gpd 153
200515 single family dwelling unnamed stream 500 gpd 365
206633 single family dwelling unnamed lake 75 gpd 365
206930 single family dwelling unnamed lake 250 gpd 365
206931 single family dwelling unnamed lake 250 gpd 365
Permit
206929 general crops unnamed creek 1 ac-ft/yr 153
Permit
T30N R3W 206735 single family dwelling unnamed stream 250 gpd 365
Pending
209866 single.family dwelling Sherman Creek 75 gpd 365
lawn and garden irrigation same source 50 gpd 183
1 All locations are within the Seward Meridian
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REFERENCES
Brown, D.1981.Letter to J.Lawrence,Acres American Iric , ,Buffalo,
NY,September 24,1981.2 pp.
Doggett,G.1981.Interview.October 21 and 28,1981.Water Manage-
ment Section,Div.of Forest,Land and Water Management,Alaska
Dept.of Natural Resources,Anchorage,AK.
Dwight,L.P.,and'E.W.Trihey.1981.A survey of questions .and con-
cerns pertaining to instream flow aspects of the proposed Susitna
hydroelectric proj ect ,Report for Acres American Inc.,Buffalo,
NY. 1 vol.
Janke,P.1981.Interview.October 21,1981.Water Management
Section,Div.of Forest,Land and Water Management,Alaska Dept.of
Natural Resources,Anchorage,AK.
Mack, S.1981.Interview.October 16,1981.Northcentral District
Office,Div.of Forest,Land and Water Management,Alaska Dept.of
Natural Resources,Fairbanks,AK.
Prokosch,G.1981.Interview.October 28,1981.Water Management
Section,Div.of Forest,Land and Water Management,Alaska Dept.of
Natural Resources,Anchorage,AK.
R&M Consultants,Inc.In press.Alaska Power Authority Susitna hydro-
electric.project:Task 3 -Hydrology;subtasks 3.07 and 3.10-
River morphology studies--Devil Canyon to Cook Inlet.Report for
Acres American Inc.,Buffalo,NY.
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APPENDIX
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Appendix
Fish Creek Township Grid (2 townships)
A single family dwelling has water rights for 75 gpd of surface water
during three summer months,and a trailer park site,2,000 gpd of
groundwater year-round (Table 5).
Willow Creek Township Grid (5 townships)
On a year-round basis,groundwater is the major source of water for
single family dwellings,the library,a campground,and animals,lawns,
gardens,and crops (Table 6).Groundwater supplies are used year-round
at the Independence Mine (83,120 gpd).The major use of surface water
occurs on a seasonal basis for mining operations.
Little Willow Creek Township Grid (2 townships)
A small amount of surface water and groundwater is utilized for single
family dwellings and for watering animals,lawns,and gardens (Table 7).
Montana Creek Township Grid (4 townships)
Groundwater is the maj or source for single family dwellings,schools,
and for watering animals and crops (Table 8).
Chulina Township Grid (1 township)
A small amount of both surface water and groundwater is used for single
family dwellings and for watering animals,lawns,and gardens (Table 9).
Susitna Reservoir Township Grid (46 townships)
The only appropriation recorded in the area encompassed by the proposed
reservoir is the permit held by the Alaska Power Authority for the forty
man camp from which field work is conducted in support of the feasi-
bility studies.The permit is for 3,000 gpd of lake water (Table 10).
Chulitna Township Grid (13 townships)
A limited amount of groundwater is appropriated for year-round use,120
gpd for single family dwellings and 2,000 gpd for trailer park camps
(Table 11).
Kroto-Trapper Creek Township Grid (2 townships)
Single family dwellings only have water rights for 600 gpd of surface
water.The major use is for crop irrigation (Table 12).
Kahiltna Township Grid (9 townships)
Surface water is used exclusively on a seasonal basis for various mining
operations (Table 13).
Yentna Township Grid (16 townships)
--Surface'water-Ts-'us'ed 'excrusivelyon-a seasonalbasis·for-plac-~r-gold-,
operations (Table 14).
Skwentna Township Grid (18 townships)
Both surface .andgrout1.dwatet supply sIIlallquantl.t.ies'for si:rigIe:faIIl:Ll.y
dwellings (Table 15).Surface water is also used for watering animals
and crops.
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Certificates
Table 5.Fish Creek Township Grid
SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS
cfs gpd ac-ftly~OF USE cfs gpd ac-ft/yr
DAYS
OF USE
Single family dwelling
Trailer park camp sites
Total
75
75
92
2,000
2,000
365
Table 6.Willo~Creek Township Grid
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TYPE S~RFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS DAYS
c!fs!gpd ac-ft/yr OF USE cfs gpc:l__ac=f.J.jyr OF USE
Certificates
Single family dwelling 415 365 9,520 365
75 120 75 245
2-4 unit hou~ing 75 122
Libraries &info centers 300 365
Animals 445 365
Lawn and garden irrigation .1 153
General crops 4,000 91
Gold and silver mining 8 5,000 153
Land &water conservation I 1,000 153
Total T 5,565 15,340 -:T
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Permits
Gold-mining 8 5,000 153
Placer gold i.6 153
Total ~.6 5,000
Pending
Gold mining 4,000 153
Load gold 83,120 365
Placer gold ~.T 184
~.7 4,000 83,120
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Total H~.3!14,565 98,460 .1
TYPE
Certificates
Table 7.Little Willow Creek Township Grid
SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS
cfs gpd ac-ft!yr OF USE cfs gpd ac-f~!yr
DAYS
OF USE
Single family dwelling
Animals
Lawn and garden irrigation
Total
375
375
1-1-
365
91
800
425
1,225
365
365
TYPE
Certificates
Table 8.Mon~ana Creek Township Grid
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S~RFACE WATER APPROPRIATIONS DAYS GROUNDWATER·APPROPRIATIONS
cfis gP<l __ac-f~lyr~__OF US~__~fs~_.~~gEd ac--ft/yr
DAYS
OF USE
Single family dwelling
2-4 unit housing
Grade schools
Animals
Lawn and garden irrigation
.Total
Permits
Single family dwelling
Animals
Total
Pending
1,000
1,225
200
2,425
500
160
660
1.0
2.0
.5
3.5
365
365
214
123
153
184
365
365
6,675
4,800
11 ,475
500
500
365
242
365
Single family dwelling
Animals
Lawn and garden irrigation
General crops
Total
Total
250 365
10 365 14,700 365
.5 153
.2 153 236 365
260 -:=i 14.,700 236
3,345 4.2 26,675 236
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Table 9.Chulina Township Grid
TYPE SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS DAYS
cfs gpd ac-ft/yr OF USE cfs gpd ac-ft/yr OF USE
Certificates
Single family dwelling 75 365
Lawn and garden irrigation 30 153
Total 105
Permits
Single family dwelling 80 365 500 365
Animals 98 365 36 365
Lawn and garden irrigation .5 91
Total 178 .5 536
Total 283 .5 536
TYPE
Permits
Table 10.Susitna Reservoir Township Grid
SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS
~fs gpd ac-ftJyr OF USE cfs gJl_d .ac_...ftlyr
DAYS
OF USE
Work camps
Total
3,000
3,000 .
365
TYPE
Certificates
Single family dwelling
Trailer park camp sites
Total
Table 11.Chulitna Township Grid
SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS
cfs gpd ac-ft/yr OF USE cfs gpd ac-ft/yr
120
2,000
2,120
DAYS
OF USE
365
365
TYPE
Permits
Table 12.Kroto-Trapper Creek Township Grid
SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS
~fs gpd ac-ft/yr OF USE cfs gpd ac-ft/yr
DAYS
OF USE
Single family dwelling
General crops
Total
600
600
10 .
10
,
365
91
TYPE
Permits
Table 13.Kahiltna Township Grid
SURFACE WATER APPROPRIATIONS DAYS
cfs gpd ac-ft/yr OF USE
GROUNDWATER APPROPRIATIONS
cfs gpd ac-ft/yr
DAYS
OF USE
Gold mining
Placer gold
Total
Pending
45.3 200,000
24
69.3 200,000
153
153
Gold and silver mining
Gold mining
Placer gold
Total
Total--
2 5,000 153
45 452,500 153
8 92
55 457,500
124.3 657,500
Table 14.Yentna Township Grid
TYPE
Pending
Placer gold
Total
SURFACE WATER APPRQPRIATIONS
cf~gpd ac-ft/yr
1,000
1,000
DAYS
OF USE
184
GROUNDWATER APPROPRIATIONS
cfs gpd ac-ft/yr
DAYS
OF USE
Table 15.Skwentna Township Grid
___J
TYPE SURFACE WATER APPROPRIATIONS DAYS GROUNDWATER APPROPRIATIONS DAYS
cfs gpd ac-ft/yr OF USE cfs gpd ac-ft/yr OF USE
Certificate
Single family dwelling 250 365
Total 250
Permit
Single family dwelling 500 365
Animals 109 365
Lawn and garden irrigation 1.5 153 -
Total 109 1.5 500
Total 359 1.5 500
SUSITNA RIVER DRAINAGE BASIN
\
PREPARED BY LINDA PERRY DWIGHT
Base map adapted from Alaska I:1,000,000
base map series,Arctic Environmental Information
and Data Center,University of Alaska.COOK INLET
ANCHORAGE
8 Cantwell
LOCATION OF TOWNSHIP GRIDS
IN THE SUSITNA RIVER BASIN
I.Susitno 10.Susitna Reservoir
2.Fish Creek II.Chulitna
3.Willow Creek 12.Tokositna
4 Little Willow Creek 13.Kroto -Trapper Creek
5.Kashwitna 14.Kahiltna
6.Sheep Creek 15.Yentna
7.Montana Creek 16. Skwentna
8.Talkeetna 17.Happy
9.Chulina 18.Alexander Creek
0 10 20 MILE
SCALE I !
FIGURE I.•
WATER RIGHTS IN THE MAINSTEM SUSITNA RIVER CORRIDOR
TALKEETNA AND TALKEETNA MOUNTAIN QUADRANGLES
~
'v
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i (~q')~.~J (~).'.i
PREPARED BY LINDA PERRY DWIGHT
Reference: Base map from U.S.Geological Survey
Data from Alaska Dept. of Natural Resources
o 5
ba ilU&Ji J
FIGURE 2.II
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R 7
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r-/'iJJ~o
w o-
WATER RIGHTS IN THE MAINSTEM
TYONEK AND ANCHORAGE
PREPARED BY LINDA PERRY DWIGHT
Reference:Base from U.S.Geologlcol Survey
Data from Aloska Dept.of Natural Resources
o 5
SUSITNA RIVER
QUADRANGLES
CORRIDOR
FIGURE 3.•
en
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