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ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUATIC STUDIES REPORT SERIES
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ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUATIC STUDIES
REPORT NO.3
AQUATIC HABITAT AND INSTREAM FLOW
INVESTIGATIONS (MAY-OCTOBER 1983)
Chapter 4:Water Quality Investigations
Edited by:
Christopher C.Estes
and
Douglas S.Vincent-Lang
Prepared for:
ALASKA POWER AUTHORITY
334 W.FIFTH AVE.
ANCHORAGE.ALASKA 99501
ARLIS
Alaska Resources
Library &InJonnatlOD Services
AncMragc.AiMka
PREFACE
This report is one of a series of reports prepared for the Alaska Power
Authority (APA)by the Alaska Department of Fish and Game (ADF&G)to
provide information to be used in evaluating the feasibil ity of the
proposed Susitna Hydroelectric Project.The ADF&G Susitna Hydro Aquatic
Studies program was initiated in November 1980.The five year study
program was divided into three study sections:Adult Anadromous Fish
Studies (AA),Resident and Juvenile Anadromous Studies (RJ),and Aquatic
Habitat and Instream Flow Studies (AH).Reports prepared by the ADF&G
prior to 1983 on this subject are available from the APA.
The information in this report summarizes the findings of the 1983 open
water field season investigations.Beginning with the 1983 reports,all
reports were sequentially numbered as part of the Alaska Department of
Fish and Game Susitna Hydro Aquatic Studies Report Series.
TITLES IN THE 1983 SERIES
Report
Number Title
Publication
Date
~-1
2
Adult Anadromous Fish Investigations:April 1984
May -October 1983
Resident and Juvenile Anadromous Fish July 1984
Investigations:May -October 1983
....3
4
Aquatic Habitat and Instream Flow
Investigations:May -October 1983
Access and Transmission Corridor Aquatic
Investigations:May -October 1983
1984
1984
This report,"Aquatic Habitat and Instream Flow Investigations"is
divided into two parts.Part I,the "Hydrologic and Water Quality
Investigations",is a compilation of the physical and chemical data
collected by th ADF&G Su Hydro Aquatic Studies team during 1983.These
data are arranged by individual variables and geographic location for
ease of access to user agencies.The combined data set represents the
available physical habitat of the study area within the Cook Inlet to
Oshetna River reach of the Susitna River.Part II,the "Adult Anadro-
mous Fish Habitat Investigations",describes the subset of available
habitat compiled in Part 1 that is utilized by adult anadromous fish
studied in the middle and lower Susitna River (Cook Inlet to Devil
Canyon)study area.The studies primarily emphasize the utilization of
side slough and side channel habitats of the middle reach of the Susitna
River for spawning (Figure A).It represents the first stage of
development for an instream flow relationships analysis report which
will be prepared by E.W.Trihey and Associates.
MAP AREA
o 25
I I
MID OLE REACH
ADF BG FIELD CAMPS
OVERALL STUDY AREA
EItl
•
..,
miles
....c.•.,q,.o6'l
Figure A.Susitna River drainage basin.
J I J ~I J ~I ]~I J ,J J I I I .~
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CONTENTS OF REPORT NO.3
Part One
Chapter
1 Stage and Discharge Investigations.
2 Channel Geometry Investigations.
3 Continuous Water Temperature Investigations.
4 Water Quality Investigations.
Part Two
Chapter
5 Eulachon Spawning in the Lower Susitna River.
An Evaluation of Passage Conditions for Adult Salmon in
Sloughs and Side Channels of the Middle Susitna River.
7 An Evaluation of Chum and Sockeye Salmon Spawning Habitat in
Sloughs and Side Channels of the Middle Susitna River.
8 An Evaluation of Salmon Spawning Habitat in Selected Tributary
Mouth Habitats of the Middle Susitna River.
9 Habitat Suitability Criteria for Chinook,Coho,and Pink
Salmon Spawning.
10 The Effectiveness of Infrared Thermal Imagery Techniques for
Detecting Upwelling Groundwater.
Questions concerning this and prior reports should be directed to:
Alaska Power Authority
334 W.5th Avenue
Anchorage,Alaska 99501
Telephone (907)276-0001
ARlJIS
..Alaska Resources
LIbrary &Infonnauon Se.h .TVlcesAncorage.Alaska
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Water Quality Investigations
1984 Report No.3,Chapter 4
by:Gene Sandone and Tim Quane
(
Alaska Department of Fish and Game
Susitna Hydro Aquatic Studies
2207 Spenard Road
Anchorage,Alaska 99503
ABSTRACT
Baseline water quality data have been collected within the Susitna River
basin since 1981 in conjunction with the baseline fisheries studies
being conducted by the Alaska Department of Fish and Game Susitna
Hydroelectric Aqua tic Studi es Feas ibi 1 ity Team.The primary objective
of the data collection program has been to collect baseline water
quality data (dissolved oxygen,pH,conductivity,temperature,and
turbidity)within the habitats selected for fishery studies that are
present in the Susitna River basin and to determine the influences of
mainstem discharge conditions on the water quality characteristics of
these habitats.Although these investigations have been conducted
throughout this large glacially-fed river system,effort has been
concentrated in the reach of river extending from Talkeetna (RM 97)to
Devil Canyon (RM 150)as impacts from the construction and operation of
the proposed hydroelectric development are expected to be greatest in
this river reach.
The 1983 investigations (summarized in this report),concentrated on
mainstem,side channel,side slough and tributary habitats.Water
quality measurements of dissolved oxygen,pH,conductivity and turbidity
were obtained in the mainstem Susitna River and the Talkeetna and
Chulitna rivers twice a month on an instantaneous basis except for the
Talkeetna fishwheel and Gold Creek camp stations,which were monitored
daily.Turbidity measurements were obtained from several side channel
and side sloughs in the Talkeetna to Devil Canyon reach twice a month.
Results of these investigations indicate that water qual ity in the
mainstem Susitna River is relatively similar among sampling locations
but that specific water quality variables at sampling stations change in
relation to mainstem discharge.Increased levels of turbidity in the
mainstem were found to correlate to mainstem discharge,but are assumed
to result from suspended sediment contributed by the Susitna and
Maclaren glaciers.Turbidity levels remain low when glacial melt
ceases.Turbidity levels in side channels and side sloughs were found
to be independent of mainstem discharge prior to breaching of the heads
by the mainstem,however subsequent to breaching those sites were found
to resemble the turbidity of the mainstem with the controll ing factor
being the relative flow contribution of the mainstem to that of the site
i
flow.Tributary water quality was found to be independent of mainstem
Susitna River discharge and was determined to influence to varying
degrees the water quality conditions of the rnainstem depending on the
relative size of the tributary.
Information from these studies will be used by other project biologists
and engineers to evaluate the impact of hydroelectric development on the
Susitna River.
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TABLE OF CONTENTS •.
LIST OF FIGURES ••.
TABLE OF CONTENTS
ABSTRACT &II •••••••••••••••
.............................................
....................".
LIST OF TABLES .•....•••..•..
LIST OF APPENDIX TABLES ••.
i
iii
iv
v
vi
1.0 INTRODUCTION •••..•1
1.1
1.2
Introduction.
Objecti ves ••.••...•....••
1
1
1.2.1
1.2.2
1.2.3
Mainstem Habitats •.•.•..........•...•...•....
Side Channel and Upland and Side
Slough Habitats •...•...••...•.
Tributary Habitats •.•..••..••..••.
1
1
2
2.0 METHODS ••••••••••••••••••••••••••••••••••••••••••••••••••3
2.1 Site Selection.3
2.1.1
2.1.2
2.1.3
Mainstem Habitats •............•......•.......
Side Channel and Side and Upland
Slough Habitats ......•...•....••.
Tributary Habitats .
3
~.
3
2.2
2.3
Field Data Collection ..
Analytical Approach •...•........•....................
3
7
3.0 RESULTS ••••••••••••••••••••••••••••••••••••••••••••••••••8
3.1
3.2
3.3
Mainstem Habitats .....................•...........•.
Side Channels and Side and Upland
Slough Habitats ..•...•.•......•...•..
Tributary Habi tats .
8
8
18
4.0
5.0
6.0
7.0
8.0
9.0
DISCUSSION ••.0
GLOSSARY .
CONTRIBUTORS •..
ACKNOWLEDGEMENTS ...
LITERATURE CITED ..
APPENDICES •...........•...•..
iii
19
24
28
29
30
4-A-l
.-
LIST OF FIGURES
Figure No.
,~
4-1
4-2
4-3
4-4
4-5
Mainstem,side channel,and upland and side slough
water quality monitoring stations for the 1983
open water field season .•.......•...•.....•...........•....
Dissolved oxygen data summary showing range,
25th,50th (median),and 75th percentile for
mainstem and tributary water quality study sites .......•...
Dissolved oxygen percent saturation data summary
showing range,25th,50th (median),and 75th
percentile for mainstem and tributary water
quality study sites .
pH data summary showi ng range,25th,50th
(median),and 75th percentile for mainstem and
tributary water quality study sites •.•••••.••••••.•.••.•..•
Conductivity data summary showing range,25th,
50th (median),and 75th percentile for mainstem
and tributary water qual ity study sites ••.•••..•••.•••••••.
4
9
10
11
12
4-6 Turbidity data summary showing range,25th,50th
(median),and 75th percentile for mainstem and
tributary water quality study sites........................13
4-7 Turbidity,surface water temperature,and Susitna
River discharge at Gold Creek (USGS 15292000)
versus time at the Talkeetna fishwheel camp................14
4-8 Turbidity,surface water temperature,and Susitna
River discharge at Gold Creek (USGS 15292000)
versus time at the Gold Creek camp.........................15
4-9 Turbidity versus Susitna River discharge at the
Talkeetna fishwheel camp...................................16
4-10 Turbidity versus Susitna River discharge at the
Gold Creek camp..............................................17
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4-11
4-12
Range of turbidity during unbreached and breached
hydraulic conditions for side slough habitats..............22
Range of turbidity during unbreached and breached
hydraulic conditions for side channel habitats.............23
iv
LI ST OF TABLES
Table No.
-
4-1
4-2
Location of mainstem Susitna River and selected
tributary water qual ity monitoring stations
selected for the 1983 open water field season .•......•.....
Locations of side channel,and upland and side
slough water quality monitoring stations selected
for the 1983 open water field season ••.•••..•....•.•••••..•
v
5
6
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LIST OF APPENDIX TABLES
Table No.
4-A-1 Water quality data collected at mainstem Susitna
River sites for the 1983 open water field season .•.••••••4-A-2
4-A-2 Comparisons of periodic water quality (tempera-
ture and turbidity),water surface elevations
(WSEL)and streamflow collected at selected non-
mainstem locations upstream of Talkeetna with
mean daily mainstem discharge at Gold Creek
(15292000).,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...4-A-13
4-A-3 Inci denta 1 water quality data (temperature and
turbidity)compared to tributary stream flow
water surface for Indian River and Whisker1s Creek
for the 1983 open water field season •.•.•••••••••••••••.•4-A-19
vi
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1.0 INTRODUCTION AND OBJECTIVES
1.1 Introduction
The Alaska Department of Fish and Game (ADF&G)Susitna Hydroelectric
Aquatic Study has collected baseline water quality data throughout the
Susitna River basin since 1981.Although measurements of baseline water
quality have been obtained throughout the entire river basin,the
emphasis of the data collection program has been largely oriented to the
reach of the Susitna River extending from Talkeetna to Devil Canyon
(middle river).The primary focus of the data collection program to
date has been to characterize the basel ine water qual ity conditions
present within the mainstem and its peripheral habitats and to determine
how these baseline water quality conditions are influenced by mainstem
discharge.Results of these investigations are presented in ADF&G 1981,
1982.
1.2 Objectives
The overall objective of the FY84 open water field season (May 15 -
October 31,1983)water quality investigations was to continue the
monitoring of water quality conditions present in the mainstem,selected
side channel,upland and side sloughs,and tributaries of theSusitna
River from the Parks Highway Bridge (RM 83.9)to the mouth of Devil
Canyon (RM 150.1).The water quality parameters measured included
dissolved oxygen (DO),pH,water temperature,conductivity,and
turbi dity.
The FY 84 open water field season water quality investigations were
segregated by habitat into three distinct programs,each with its own
specific objectives.
1.2.1 Mainstem Habitats
The water quality data collection program conducted in mainstem habitats
during the 1983 open water field season was designed to:
1.Characterize the general baseline water quality of the Tal-
keetna to Devil Canyon reach of the mainstem Susitna River;
2.Determine the effect that mainstem discharge has on selected
water quality parameters sampled;and,
3.Support the analyses of fish habitats being conducted in
mainstem habitats.
1.2.2 Side Channel and Upland and Side Slough Habitats
The water quality data collection progra~conducted in side channel and
side and upland slough habitats during the 1983 open water field season
was designed to:
1.Monitor the turbidity levels of selected side channel sand
sloughs (upland and side)in the Tal keetna to Devil Canyon
reach of the Susitna River;
1
2.Determine the effect that mainstem discharge has on turbidity
levels in these peripheral habitats;and,
3.Support the analyses of fish habitats being conducted in these
peripheral habitats.
1.2.3 Tributary Habitats
The water quality data collection program conducted in tributary habi-
tats during the 1983 open water field season was designed to:
1.Characterize the general water quality influence of the
Talkeetna and Chulitna Rivers on the Susitna River.
2.Support the analyses of fish habitats being conducted in
tributary habitats.
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2.0 METHODS
2.1 Site Selection
2.1.1.Mainstem Habitats
The mainstem Susitna River water quality monitoring stations were
specifically chosen to monitor representative water quality conditions
present throughout the 1983 open water field season in the reach of
river from Talkeetna to Devil Canyon (Figure 4-1,Table 4-1).Each
water quality station was located at a site where continuous water
temperature was also collected (see Chapter 3 of this report).Sampling
intensity was daily at the two camp locations (Talkeetna fishwheel and
Gold Creek Camp),whereas the remaining sites were monitored twice a
month (Table 4-1).
2.1.2 Side Channel and Side and Upland Slough Habitats
The side channel and side and upland sloughs selected for water quality
monitoring (Table 4-2,Figure 4-1)were chosen based upon their impor-
tance as salmon spawning and rearing habitat and their ability to repre-
sent side channel and side and upland slough habitats in the Talkeetna
to Devil Canyon reach.
Turbidity was monitored twice monthly at each side channel and slough
discharge monitoring station.
2.1.3 Tributary Habitats
Tributaries selected for water quality investigations (Table 4-1,Figure
4-1)included the Talkeetna and Chulitna.
The Talkeetna and Chulitna Rivers are major glacial tributaries which
join the Susitna River near the town of Talkeetna.Because of their
major contribution of flow to the Susitna River general water quality
parameters were measured from these two tributaries.
Turbidity data were also collected in Indian River primarily to extend
the record of turbidity measurements from this tributary.
The Ta"'keetna and Chulitna River water quality sites were chosen to
coincide with the continuous water temperature stations located in these
rivers.The water qual ity monitoring station for Indian River was the
discharge station selected for Indian River.
2.2 Field Data Collection
Water quality parameters measured during the 1983 open water field
season included dissolved oxygen (DO),pH,water temperature,specific
conductance and turbidity.All water quality parameters except turbid-
ity were measured employing a Hydrolab model 4041 portable multiparam-
eter,meter using procedures outlined in the FY84 ADF&G Procedures Manual
(ADF&G 1984).Turbidity samples were analyzed in the field with a HF
3
10
MILES
o
WATER QUALITY MONITORING
STATIONS FOR 1983
Slouqh 11 Q Sta.iQJll
~<:2::::::,Stou9h 9 Q 5,.Uo"
'.1.Sto\lqh 8A below eeo.".r Da ....w thClIll.e.
Slout;lilll 8A ME
e.a .....Q StatU.
LRX 24
Maln.t....Z Slde Chaftn••
HE Chlunel Q Site
"S to..,...e Q Statian
""'-S10uQh '1A Mouth
Talk ••fM 80.e CaIRO
/rWhld.•n SLau,,'"Q StatioA
/rWhi.~.r.C'Hk Q Station
Figure 4-1.Mainstem.side channels,and upland and side slough water
quality study sites for 1983.
4
Table 4-1 Mainstem Susitna River and tributary water quality monitoring
stations selected for the 1983 open water field season.
Location Habitat Ri ver Mil e TRM 1 Sample Schedule-Parks Highway Bridge Mainstem 83.9 Twice monthly·
Talkeetna River Tributary 97.2 0.5 Twice monthly
Chulitna River Tributary 98.6 2.0 Twice monthly
~.Talkeetna Fishwheel Mainstem 103.0 Daily
LRX 24 Mainstem J.20.7 Twice monthly
LRX 29 Mainstem 126.1 Twice monthly
MS above Gold Creek Mainstem 136.8 Dai ly
Indian River Tributary 158.6 1.0 Twice monthly
LRX 57 Mainstem 142.3 Twice monthly
Eddy below Devil Canyon Mainstem 150.1 Twice monthly
""""
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1 TRM =tributary river mile,determined from the mouth of the tributary
upstream to the study site.
5
Table 4-2.Locations of side channel and upland and side slough water
quality monitoring stations selected for the 1983 open water
field season.
..",
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Site
Side channel
Mainstem II Side Channel
Slough 10 Side Channel
Upper Side Channel 11
Side Channel 21
Slough
Whiskers Creek Slough
6A
Slough 8
8A
9
11
16B
20
21
River ~1ile
114.4
134.2
136.5
141.1
101.4
112.3
113.7
125.5
128.9
135.7
138.0
140.2
141.0
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Instrument ORT-i5 turbidity meter using procedures outlined in the FY84
AOF&G Procedures Manual (AOF&G 1984).
2.3 Analytical Approach
Water quality data collected at mainstem and major tributary sites were
tabulated with presentation of the statistical analysis 1imited to the
range and the percentile ranking.Turbidities and temperature obtained
at the daily monitored stations in the mainstem were plotted against
mainstem discharge and time.Turbidity and discharge were also analyzed
for straight line characteristics utilizing a least square regression
for these two daily monitoring stations.
Turbidity data collected in side channels and upland and side sloughs,
were tabulated with corresponding water surface elevation estimated flow
for the study site and mainstem discharge at Gold Creek (USGS 15292000).
7
3.0 RESULTS
3.1 Mainstem Habitats
Instantaneous measurements of water quality (dissolved oxygen,pH,water
temperature,conductivity,and turbidi ty)were obtai ned at seven ma in-
stem Susitna River water quality monitoring stations and two tributaries
during the 1983 open water field season.These data are tabulated in
Appendix Table 4-A-l.Graphical representations of the range,mean,and
median values for each water qual ity parameter at each station are
presented in Figures 4-2 through 4-6.The nature of the sampl ing
procedure (instantaneous measurement)among stations,precludes strict
comparisons of the ranges,means,and medians between stations.Thus,
these data only provide an overview of the water quality characteristics
of the mainstem Susitna River at a specific station.
Percent dissolved oxygen saturation was calculated for each monitoring
station using the instantaneous water temperature and dissolved oxygen
data bases and utilizing a dissolved oxygen saturation nomograph (Wetzel
1975).These data are tabulated in Appendix Table 4-A-l and graphically -
presented in Figure 4-3.
Turbidity measurements collected on a daily basis at the Talkeetna
fishwheel station and the Gold Creek camp monitoring stations were
plotted against time along with mean daily mainstem Susitna River
discharge at Gold Creek (15292000)and mean daily surface water tempera-
tures (Figures 4-7 and 4-8).Turbidity data collected at these mainstem
Susitna River monitoring stations were also plotted against mainstem
Susitna River discharge at Gold Creek (15292000)(Figures 4-9 and 4-10).
A time dependent trend becomes evident when turbidity data is plotted ...~
against mainstem Susitna River discharge.The trends are given as four
periods of measurements:
1.Early period and late period (5/18/83 to 6/20/83 and 8/15/83
through 10/6/83);
2.Early transitional period (6/21/83 through 6/25/83);
3.Middle period (6/26/83 through 8/6/83);
4.Late transitional period (8/7/83 through 8/14/83).
Large changes in turbidity levels (loa NTUs)for comparable discharges
defined the transitional periods.Transitional periods defined the .~
early,1ate,and middle peri ods.Transiti ona 1 peri od turbidity data
were not used in the calibration of the relationships between mainstem
turbidity and mean daily mainstem discharge at Gold Creek.
3.2 Side Channels and Side and Upland Slough Habitats
Instantaneous water temperature and turbidity measurements were obtained
at 5 sites within 5 side channel habitats and at 13 sites within 11 side
and upland slough habitats in the Talkeetna to Devil Canyon reach of the
Susitna River.These data along with corresponding site specific water
8
J ---1 1 1 1 )J i J ]J )J I %
SIT~RM PERIOD
Mainstem:(1983 )
Par"Hl,lIway Brld,e 85.9 7/115-10/1
Talkeelna fllllwll..1 Camp 105.0 I/IZ-II/a
Curry (LRX Z4)120.0 6/19-10/5
LRX29 125.3 6/15-II/Z
Gold C,.ek Cdmp 136.8 1/12-11/2
LRX51 142.0 6/11-11/2
<.D Back Eddy 1!SO.o 7/6-0/5
(bolow Deyil Canyon)
Tributary:
Talkeelna River (TRMO.5)91.1 7/15-IQlI
Chulitna River (TRM 0.6)98.0 7/15"10/1
_\n=7
-----18'0;;;;*_.+n =83
----I-n=8
\ _n=8
11*.)(n=71
I_n =8
_I n =5
--+-n=6
---••--'"1~n=8
Ran,e
.....-------,
~25111 /'\--'M~151h
Percenllle Percenlile
50 III Percentile
X·0010 nal Included in
.lall.llcal analy.i •.
4.0
I
60
I
8.0
I
10.0
I
12.0
T
14.0
"T
160
I
18.0
DISSOLVED OXYGEN (mg/l)
Fil:;ure 4-2.Dissolved oxygen data summary shOWing range,25th,50th (median),and 75th percentile for
mainstem and tributary water qual ity study s·ites.
SITE RM PERIOD
Molnslem:(1983)
Portl.Highway Bridge 83.9 7/15"'0/1
Talkeetna FI.hwhHI Camp 103.0 6/12-11/3
Curry (LRX241 120.0 6/I9-10/!5
LRX29 125.3 6/15-11/2
Gold Creak Camp 136.8 6/12-11/2
LRX 57 842.0 6/17-11/2
......Bock Eddy 150.0 7/6-1(V50(below Devil Canyon)
Tributory:
Talkeetna River (TRM 0.51 97.1 7/1l5"IOIl
Chutilna River (TIIM 0.61 98.0 7/15-10/1
~
70 80
--+-n=7
(@tlMifW:Wl n =83
-------1--n;::8
-+-n 1l 8
•n=71
-+--n=8
--+-n=5
---f.--n=6
--i n=8
I I I I
90 100 II 0 120
DISSOLVED OXYGEN (%SATURATION)
I
130
Rang..-----.
~
251h /'\"M~75th
Percentile Percentile
50 th Percentile
X -Da'a not Included in
.totloticol onaly.i •.
I
140
Figure 4-3.Dissolve oxygen percent saturation data summary showing range.25th.50th (median).and
75th percentile for ~lainstem and tributary water quality study sites.
J t I .1 I ,,~J I !J 1 I ,)]
-1 ---I 1 1 l I j B .~]j J
SITE RM PERIOD
Mainstem:(1983)
Parks Highway Bridge B3.9 7115-10/1-
Talkeetna Fishwheel Camp 103.0 6/12-11/3-
Curry (LRX24)1200 6/19-10/5-
lRX 29 125.3 6I1S-I112J X
Gold Creek Camp 136.8 6/12-1112-
~.......LRX 57 142.0 6117 -11/2-
Bock Eddy 150.0 716-10/5-
(below Devil Conyon)
Tributary:
Talkeetna River(TRM 0.5)97.1 7/15-1011-
Chulitna River (TRM 0.6)980 7/6-10/3-
+-n=7
--"-n =82p
-+0=8
+n=1
X X _n=70
--f-n=8
-+-n=5
-t-n=6
-+-n:8
X n =82
Range
•I•25th /'.\'~75th
Percentile Percentile
50th Percentile
X -Data not included in
Itatillieal onalylie.
'I
5.0
1
6.0
I
1.0
pH
.-a.o .-
9.0
I
10.0
Figure 4-4.pH data summary showing range,25th,50th (median),and 75th percentile for mainstem and
tributary water quality study sites.
§.ill RM f.§llQQ
Mainslem:(1983 )
Parks Highway Bridge 83.9 7/15-10/1
Talkeelna Fi,hwheel Camp 103.0 6/12-11/3
Curry (LRX24)120.0 6/19-10I!l
LRX 29 125.3 6/1!l-1I/2
Gold Creek Camp 136.8 6/12-11/2
LRX !l7 142.0 6/17-11/2.......
N
Back Eddy 150.0 7/6-10/5
(below Devil Canyan)
Tributary:
Talkeelno River (TRM O.!ll 97.1 7/15-10/1
Chulilna River (TRM 0.61 98.0 7/15-10/1
x
1 -n =7
~il;Fj;!;r n =83
------<~n =8
_I n =8
-----..n=79
---I -n=8
I -n=5
-I_n=6
--1-n=8
Range....---,
~25Ih/"\'M~751h .
Percenllle Percenlile
50lh Percentile
X -0010 no1 Included in
,101lall<:01 onolyall.
o
T
30
T
60
I
90
,-
120
CONDUCTIVITY
I
150
T
180
I
210
Figure 4-5.Conductivity data summary showing range,25th,50th (median),and 75th percentile for mainstem
and tributary study sites.
I l i J I I _..;]J I I ,1 .1 1 ~
1 1 i 1 ]J ]J
SITE RM PERIOD
Mainstem:(1983)
Park.Highway Bridge 839 1/15'10/'-I •n=7
Tolkeelna fi.hwhe"Camp 103.0 6/IZ-I//3 n=122
Curry (LRXZ4)120.0 6/19"10/5 I •.n=8
lRX29 12!l.3 :-:~n"8
•Gold Creek Camp 136.8 no:80
LRX51 14i.0 n"10
Back Eddy 1500 716-10/111 ,.n"6......(below Dey;1 ConyonlW
Range.----,
~
25th /\11;:;;~75Ih
Percentile Percenlile
50lh Percentile
X-Dolo not included in
.Iotiatlcal onaly.ie.
Tribu.ory:
Talkeetna River (TRM OJl)81.1
Chulilno River I1RM 0.6)98.0
Indian River (TRM 1.01 138.6
1/I11-1Q,'.-I "n 0:6
7/11S-1Q/l-l •I n =7
1/5.1C:V3,~n =5,,iii I'I
o 100 200 300 400
TURSIDITY.(NTU)
500 600 700
Figure 4-6.Turbidity data summary showing range,25th,50th (median),and 75th percentile for mainstem
and tributary study sites.
,0
100
-,00 c!
~
51
--t..
400
z
c!
~
'"_200 --tz»
:!!
'":J:
;Ii
:J:
'"'"r
-300 ~
.•a
-.-....-"'.-
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I'i \,"\._\'1 •
..;.1./\,i I,~•1\,........\/\".D,SCHARGE
1\'\;..'\_-"'"
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...1\~I \~I I
\,--1 \I I
\1"\1 \j "~-I
\...\
\
\...-~/\
I "'''."I /'\-'\\.....
\..'\
\
\ /.......\SURfACE/WATER TEMPERATURE
~\
\1\
\ I \
\ I I\~I
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'1I •• 1,.
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.1 •....
!~!.,'/I.I I 1\'\;"/-.~.........i \.-,1
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wo
it
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~12~
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'"10
"6-,
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III 4-
:::>
0 3:::>z;::2Z
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0--r,-......,--.........--,,---,,--.,---,-'----.-'-~.--",---,,---,,--..---,-,----.-,-......,--".---,,---,.--.,---,-,-......,_.......,--".---.,--r,---,-,--,-,-"""--',r---'Tr--rj--r,---',--',
15 20 25 30 4 9 14 19 24 29 4 9 14 19 24 29 3 8 13 18 23 28 2 7 12 17 22 27 2 7 ,2 ,7 22 H ,
t---MAY----JUNE .1 •JULY •,.AUGUST I •SEPTEMBER , •OCTOBER ------t
Figure 4-7.Turbidity~water temperature,and Susitna River discharge versus time
at the Talkeetna fishwheel camp.
I I )1 B I I 1 J I ~t j 1 )J )
]E ~J 1
°
100 ~
::u
II!
5Z
400~
Z
S)Q()a
JC
III
200 t
8
100 b
o
:0
,."
~-.....
,."-
71DITV~.
ivA(
'\/\,..../\f-I \~~V"'\,
r rJ '"\t ..,\/\SURFACE WATER TE"PERATURE
.\\\/-~
...J
.\
"
,,
.\!\I J\I'\."; \..."'.J\,\,/\'v \DISgtARGE· .r'"I I r'·/'t '......\t ....\"..,.-J".J '\
............../,/"_A....../.,-/"
,....".....-
~7
itII:a
CIl 4
jo 3
jz 2
j:zou
a
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:40
]
~~30
~
II:~li....~3!
....10u~
tI:
a °
.....
U1
I~.20 2~30 ~10 I~20 a 30 ~10 10 20 2~30 II 10 III 20 2~30 4 i '"Ii z.4 2i ..i 14 III 24 29
I--MAY -I.JUNE •I •JULY •I.AUGUST •I..SEPTEMBER .OCTOBER-----I
Figure 4-8.Turbidity,water temperature,and Susitna River discharge versus time at
the Gold Creek camp.
-
600
TALKEETNA FISHWHEEL
~-
....
y =O.0054X-49.46
,=0.846
n =61
y =O.Ot33X +4.42
'=0.637
n=42
o
i 1
35,000 40,000
I
30,000
o
o
i
25,000
i
20,000
i
15,000
j
10,000
I
5,000
••
5/18-6/20
o Early and late periods ana
8115-9125
@ Early transitional period 6/21-6/25
•Middle period 6/26 -8/6oLatetransitionalperiod817-8/14
Note:Transitional data nat included in the
calculation of relationships.
o
50
550
450
500
-~...400 •Z-)-...•
Q ••350 @iii•a:•
~••...••@
300 •a:
Ii.I •
>•
••a:@
ct 250 •
Z @...
(I)•@~200 •@
(I)@
@ 0••@ @ @
150
@
@ 0
0
0
100 0
0
0
SUSITNA RIVER DISCHARGE (cfs)at GOLD CREEK
Figure 4-9.Turbidity versus Susitna River discharge at the
Talkeetna fishwheel camp.
16
500
y =O.OI63X +121.62
r =0.737
n =34
y =0.003!X -29.85
r =0.889
n =37
o
•
•
••
•®
••
•
•
..
•
••
•
••
•
•
•• •••
6112-6/19oEarlyondlateperiods-and
8115 -10/6
@ Early transitional period -data not available
•Middle period -7/1 -8/6oLatetransitionalperiod-8/7 -8/14
Note:Tronsitional data not included in
the colculotion of relotionships.
350
450
400
o.......--.....,---.c:;:----.,.-.--....,.---..,...--.....,---...,..---.,.-.---
100
50
5.-z->-300.-
o
ma::250
~.-
a::
l&.I
>200
a::
<t
Z
.-150en
~
(f)
p;iiIG.
"'"'
.-
5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000
SUSITNA RIVER DISCHARGE (cfs)at GOLD CREEK
Figure 4-10.Turbidity versus Susitna River discharge at the
Gold Creek camp.
17
DRAFT/PAGE 25,8/1/84
4/20/84,5/4/84,7/24/84
SERI0B/WQI 7/31/84
surface elevation,estimated flow (see Chapter 1 of this report)and
mainstem Susitna River discharge at Gold Creek (15292000)are presented
in Appendix Table 4-A-2.
3.3 Tributary Habitats
Instantaneous measurements of water quality (dissolved oxygen,pH,water
temperature,specific conductance,and turbidity)were obtained twice a
month during the 1983 open water field season at the Talkeetna (RM 97.1,
TRM 0.5)and Chulitna (RM 98.0,TRM 0.6)River monitoring stations.
Percent DO saturation was calculated for each monitoring station using
the instantaneous water temperature and dissolved oxygen data bases and
a dissolved oxygen saturation nomograph (Wetzel 1975).These data are
tabulated in Appendix Table 4-A-l and graphically presented in Figures
4-2 through 4-6.
Limited water qual i ty measurements,instantaneous water temperatures,
and turbidities were obtained at two tributary habitats in the Talkeetna
to Devi 1 Canyon reach of the Sus itna River (Whi skers Creek and Indian
River).These data are presented in Appendix Table 4-A-3.
18
1iiJIIii"'-
-
-
.",..
"'",
DRAFT/PAGE 26,8/1/84
4/20/84,5/4/84,7/24/84
SER10B/WQI 7/31/84
4.0 DISCUSSION
Mainstem dissolved oxygen
Dissolved oxygen values (mean and medians)determined from mainstem
water qual ity monitoring stations generally tended to decrease from the
Back Eddy station (RM 150.1)located immediately below Devil Canyon,
downstream to the Parks Highway Bridge station (RM 83.9)which is
located below the confluence of the Talkeetna and Chulitna Rivers
(Figure 4-2).The exception to this general trend is the station
located at LRX 24 (RM 120.0).
In a separate study (ADF&G 1982)the highest levels of total dissolved
gas supersaturation of the Susitna River were found to form in the Devil
Canyon rapids located a short distance above the Back Eddy water quality
monitoring station.This gas supersaturation was also found to decay
moving downstream.In addition,the dissolved gas study noted that
oxygen levels were found to parallel total dissolved gas saturation
moving downstream from the Devil Canyon rapids.
Susitna River dissolved oxygen saturation levels were found to range
higher above the confluence of the Talkeetna and Chulitna Rivers than at
the Parks Highway Bridge station (Figure 4-2).These two tributaries
contribute a substantial flow to the Susitna River and both were found
to have lower dissolved oxygen values than observed in the mainstem
Susitna River upstream of their confluence.The inflow of these
tributaries may result in reducing the dissolved oxygen levels in the
mainstem Susitna River,at least as far downstream as the Parks Highway.
Dissolved oxygen and dissolved oxygen saturation values observed at all
mainstem Susitna River water qual ity monitoring stations were well above
the minimum requirement to sustain aquatic life.
Mainstem pH and Conductivity
With the exception of the water quality station located at the Gold
Creek camp,both pH and conductivity were found to vary little among the
mainstem monitoring stations located within the reach of the Susitna
River from the Parks Highway Bridge to Devil Canyon (Figures 4-4 and
4-5).The Gold Creek camp was found to have a greater range of pH and
was lower in conductivity compared to the remaining mainstem water
quality stations.Indian River,a relatively large,clearwater
tributary is located on the same shore as the Gold Creek camp water
quality station.This tributary may influence the water quality in the
mainstem as far downstream as the two mile distance to the Gold Creek
camp station.When the range of pH at the Gold Creek camp station for
1983 (pH 6.3 1-pH 8.2)is compared to the pH values measured in 1982 for
Indian River (ADF&G 1983),(pH 5.8 -pH 6.9),pH in the mainstem at the
1 pH was not monitored in Indian River in 1983 by ADF&G.
19
DRAFT/PAGE 27,8/1/84
4/20/84,5/4/84,7/24/24
SER10B/WQI 7/31/84
Gold Creek camp station does not appear to be affected by Indian River.
The oppos ite appears to be true for conduct i vity.The lower
conductivity levels found in the mainstem at the Gold Creek camp may
result from the clear water inflow of Indian River diluting the mainstem
Susitna River.In 1982 Indian River was found to have a range of
conductivity of 32-104 umhos (ADF&G 1982)compared to 61-142 umhos found
in 1983 for the Gold Creek camp.Whereas,at LRX 57,which is located
3.2 miles upstream of Indian River,conductivity was found to range from
102-188 umhos in the mainstem for 1983.
Mainstem Turbidity
The periodic positive correlations between Susitna River turbidity and
corresponding discharge during 1983 were most likely dependent in part
upon the amount of suspended sediment contributed to the mainstem
Susitna River by the Susitna and Maclaren glaciers.During the spring
and early fall which includes the early and late open water periods
characterized by relatively low turbidity,the contribution of suspended
material from the glaciers via glacial melt water is small because of
the cool air temperatures.Most of the turbidity associated with the
spring (post breakup)period probably originate from the resuspension of
glacial sediments which settled out from the water column during prior
periods of decreasing discharge and receding water levels.Turbidity
associated with the fall period may be the result of residual sediments
originating from glacial melt and resuspension of glacial sediments
during occasional high flow events.Once glacial melt and high flow
events cease and residual sediments of glacial origin are settled out of
the water column,turbidity levels remain low and continue so through
the ice covered months.
The middle turbidity period (Figures 4-8 and 4-9),characterized by
relatively high turbidity,most likely correspond to the melting of the
glaciers.During this period changes in the suspended sediment load of
the mainstem may be related to increases in glacial melt water.The
turbidity/discharge relationship of this period is more dynamic and
variable than the relationship of the early and late period,because of
periodic variations of the volume of glacial melt water and the continu-
ing deposition and resuspension of riverine glacial sediments.
Overall,increases in mainstem turbidity during the middle period may
not be strictly correlated to the amount of suspended sediment present,
but also depend,in part,on the size distribution of the suspended
sediment.Because of their greater surface area to volume ratio of the
finer particles,these particles may contribute more per unit weight to
mainstem turbidity levels than larger particles.
These smaller particles remain suspended in the water column longer than
larger particles.Once the glacial melt stops and the input of addi-
tional sediment ceases,the remaining suspended finer particles tend to
wash out of the system.The reduced mainstem turbidity/discharge
relationship of the early and late period may be partially due to the
absence or reduced levels of these .very fine particles (Figure 4-6).
20
..
i
-
.....
.....
DRAFT/PAGE 28,8/1/84
4/20/84,5/4/84,7/24/84
SER10B/WQI 7/31/84
Side Channel and Slough Turbidity
Turbidity in sloughs and side channels of the middle Susitna River reach
remained very low until a breaching event occurred (Figures 4-11 and
12).Turbidity levels of breached sloughs and side cha.nnels elevated
rapidly and,from field observations,were found to remain elevated for
a period after the breaching event ceased.This residual turbidity
decays as a function of the settling rate of the suspended sediment and
the ground water and surface runoff flushing rate.
Turbidity of sloughs and side channels during breaching events which
initially overtopped the head (see Chapter 1 of this report)were
usually lower than mainstem turbidities because of a diluting effect
with ground water or surface water runoff.As mainstem discharge in-
creased,the dilution of the mainstem turbid water decreased as more
mainstem water entered the head.Slough or side channel turbidity
level s may occasionally exceed mainstem turbidities because of the
resuspension of previously deposited glacial sediments by the increasing
velocities of the mainstem water within the slough •
21
z 300
0--=>rr-zO.....Z
)-0
N=6
r U T N=I
- 0 200Ow •
CD:r:N=2
a::u N=2::><trW I N=2a::
al I100
N=I•
(no
N o ·
•observations)
N
.
-::>rO 5ZWz-:r:o)-u-r<t r
-w 0 J N=4 N=5 N=7oa::z N=5 N=6 ·N=7 N=IO I I I~~8 :c :r::c :c~=>a WHISKERS I SLOUGH S I SLOUGH SA I SLOUGH SA I SLOUGH 9 I SLOUGH 20 I SLOUGH 21 I
SLOUGH (NW CHANNEL)(NE CHANNEL)(NW CHANNEL)
Figure 4-11.Range of turbidity during unbreached and breached hydraulic condition for side
slough habitats.
I J ]J _I I J 1 I !'!I ~J I I .1 Ja
J 1 j 1 1 1 J ]1 I 1 ]J ]l
400
N=6
Z 300-1
o
5i=1--
ZO_Zo>-0
I-C 200Owm:l:a::0~<t
I-Wa::
CD
N=6
N=4
N=7
N=7
100
N
W 0'I I I I I
N=2
N=4
I N=3 N=I
:::c :c •I (no observations)0-1 i I SIDE CHANNEL 10 IMAINSTEM2MAINSTEM2 UPPER SIDE CHANNEL 21
SIDE CHANNEL SIDE CHANNEL SlOE CHANNEL II
(NW CHANNEL)(NE CHANNEL)
5
I-0 5ZWZ
-:1:0
>-o~I-<t--WOOa::z-moa:l ZOg;~
I-
Figure 4-12.,Range of turbidity during unbreached and breached hydraulic condition for side
channel habitats.
-
""""
-
-
-
5.0 GLOSSARY
Breaching -The overtopping of the head of a $ide channel or side slough
by the mainstem river.
Conductivity -Conductivity is a numerical expression of the ability of
an aqueous solution to carryon electric current and is expressed
in the reciprocal of ohms as mhos.
Discharge -Discharge~or streamflow~is defined as the volume rate of
flow of water passing a specific location for a specific period of
time.Dimensions are usually expressed as cubic feet per second
(cfs).For the purpose of this report discharge will refer specif-
ically to mainstem habitat and streamflow for side channel~slough
and tributary habitats.
Dissolved Oxygen -The concentration of oxygen present in water as
measured in mg/l.
Flow -The movement of a stream of wa ter from place to place.See
Discharge and Streamflow.
Gaging Station - A location which has been established for monitoring
stage~flow and/or discharge.
Head -The upstream or point of origin of a lotic water body.
Initial Breaching Discharge -The mainstem discharge at Gold Creek which
represents the initial point when mainstem water begins to enter
the upstream head (berm)of a side slough or side channel.
Lower Reach (of the Susitna River)-The segment of the Susitna River
between Cook Inlet and the Chulitna River confluence.(See also
middle reach and upper reach).
Mainstem Habitat -Consists of those portions of the Susitna River that
normally convey water throughout the year.Both single and multi-
ple channel reaches are included in this habitat category.Ground-
water and tributary inflow appear to be inconsequential contribu-
tors to the overall characteristics of mainstem habitat.Mainstem
habitat is typically characterized by high water velocities and
well armored streambeds.Substrates generally consist of boulder
and cobble size materials with interstitial spaces filled with a
grout-like mixture of small gravels and glacial sands.Suspended
sediment concentrations and turbidity are high during summer due to
the influence of glacial melt-water.Discharges recede in early
fall and the mainstem clears appreciably in October.An ice cover
forms on the river in late November or December.
Mean Daily Discharge -The computed mean mainstem discharge per 24 hour
period for a USGS gaging station.
Middle Reach (of the Susitna River)-The segment of the Susitna River
between the Chulitna River confluence and Devil Canyon.(See also
lower reach and upper reach).
24
Monitoring Station - A station set up for the collection of a particular
data base.
Mouth -The downstream confluence of a lotic water body with another
water body.
Observed Data -Values derived through a visual estimate or
evaluation.
Overflow Channel -Those channels which adjoin the mainstem river with
side channel and side slough habitats and are located downstream of
the head portions of these habitats.Overflow channels
periodically breach providing mainstem water into side channel and
side slough habitats.
Overtopping -See breaching.
pH The negative logarithm of the hydronium-ion concentration;
pH =-log[H 30+)
Percent Dissolved Oxygen Saturation -The percent saturation is the
measured concentration of dissolved oxygen divided by the
saturation value multiplied by 100.
Peripheral Habitats -Aquatic habitats adjacent to the mainstem Susitna
River habitat (e.g.side channel,side slough,upland slough,
tributary mouth and/or tributary habitats).
Project Datum -The project elevations referenced to mean sea level.
Rating Curve - A curve representing a simple relation between two
variables to be used to determine values of the dependent variable
as a function of the independent variable.The rating curves
developed using project measurements of stage and discharge consist
of discharge rating curves and stage rating curves.The discharge
rating curves are used to determine streamflow as a function of
mainstem discharge and streamflow as a function of water surface
elevation.The stage rating curves are used to determine stage
referred to as water surface elevation as a function of mainstem
di scha rge.
Side Channel Habitat -Consists of those portions of the Susitna River
that normally convey water during the open water season but become
appreciably dewatered during periods of low mainstem discharge.
Side channel habitat may exist either in well defined overflow
channels,or in poorly defined water courses flowing through
partially submerged gravel bars and islands along the margins of
the mainstem river.Side channel streambed elevations are typical-
ly lower than the mean monthly water surface elevations of the
mainstem Susitna River observed during June,July,and August.
Side channel habitats are characterized by shallower depths,lower
velocities and smaller streambed materials than the adjacent
habitat of the mainstem river.
25
..,.,
-
~I
-
'"'"
,....
Side Slough Habitat -is located in overflow channels between the edge
of the floodplain and the mainstem and side channels of the Susitna
River.It is usually separated from the mainstem and/or side
channe 1s by we 11 vegeta ted ba rs.An exposed all uv ia1 be rm often
separates the head of the slough from mainstem di scharge or si de
channel flows.The controlling streambed/bank elevations at the
upstream end of the side sloughs are slightly less than the water
surface elevations of the mean monthly discharges of the mainstem
Susitna River observed for June,July,and August.At intermediate
and low-discharge periods,the side sloughs convey clear water from
small tributaries and/or upwelling groundwater.These clear water
inflows are essential contributors to the existence of this habitat
type.The water surface elevation of the Susitna River generally
causes a backwater to extend well up into the slough from its lower
end.Even though this substantial backwater exists,the sloughs
function hydraulically very much like small stream systems and
several hundred feet of the slough channel often conveys water
independent of mainstem backwater effects.At high discharges the
water surface elevations of the mainstem river is sufficient to
overtop the upper end of the slough.Surface water temperatures in
the side sloughs dur-ing summer months are principally a function of
air temperature,solar radiation,and the temperature of the local
runoff.
Staff Gage - A non-recording staff,marked in graduations of tenths of
feet,used to monitor stage through observation.
Stage ~The height of the water surface above an establ i shed datum
plane.Stage can be converted to true water surface elevation if
the observations are converted into project datum.
Streamflow -Same as discharge but refers specifically to side channel,
slough and tributary habitats whereas discharge denotes streamflow
in mainstem habitats.See Discharge.
Tributary Habitat -Consists of the full complement of hydraul ic and
morphologic conditions that occur in the tributaries.Their
seasonal flow,sediment,and thermal regimes reflect the inte-
gration of the hydrology,geology,and climate of the tributary
drainage.The physical attributes of tributary habitat are not
dependent on mainstem conditions.
Turbid -The condition of water quality at a site when water clarity is
decreased by inorganic and/or organic suspended materials.
um ~a millionth of a meter.
Upland Slough Habitat -Differs from side slough habitat in that the
upstream end of the slough does not interconnect with the surface
waters of the mainstem Susitna River or its side channels even at
high mainstem discharges.These sloughs are characterized by the
presence of beaver dams and an accumulation of silt covering the
substrate resul ting from the absence of mainstem scouring dis-
charges.
26
Upper Reach (of the Susitna River)-The segment of the Susitna River -
between Devil Canyon and the headwaters (See also lower reach and
middle reach).
Water Surface Elevation -The elevation of the water at a point of
measurement referenced to project datum.
WSEL -Abbreviation for water surface elevation.
-
-
27
,~
6.0 CONTRIBUTORS
~PROJECT LEADER
Aquatic Habitat and Instream Flow
~Project Leader Christopher Estes
PRIMARY AUTHORS Gene Sandone
Tim Quane
REPORT COORDINATORS Douglas Vincent-Lang
Tim Quane
EDITORS Douglas Vincent-Lang
Pat Morrow....
DATA PROCESSING Allen Bingham
Camille Stephens
~DATA COLLECTION Pat Morrow
Isaac Queral
Tommy Withrow
Chri s Kent
Jody Miller
DRAFTING Sa lly Donovan
TYPING Skeers Word
Processing
.....
--
28
7.0 ACKNOWLEDGEMENTS
Funding for this study was provided by the State of Alaska,Alaska Power
Authority.Input into study design was provided by LW.Trihey &
Associ ates.
29
"""'
-
.."
.-
-
8.0 LITERATURE CITED
Alaska Department of Fish and Game (ADF&G).1982.Aquatic Studies
Procedures Manual.Phase II Final Draft.Alaska Department of
Fish and Game/Susitna Hydro Aquatic Studies Program.Anchorage
Alaska.
__•1983.Aquatic habitat and instream flow studies,1982.Volume
4 of Phase II Basic Data Report.Alaska Department of Fish and
Game/Susitna Hydro Aquatic Studies Program.Anchorage,Alaska •
•1984.Procedures Manual,Final Draft (May 1983 -June 1984).--Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies
Program.Anchorage,Alaska.
.....
-
~,
,....
Wetzel,Robert G.1975.
Philadelphia.743 pp •
Limnology.
30
W.B.Saunders Company
"""
-
9.0 APPENDIX 4-A
4-A-l
Table 4-A-1 Water quality data collected at selected Susitna mainstem and tributary locations for the
1983 open water field season.
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO) (CO)~(mg/1 )Saturation cm)(NTU)
PARKS HIGHWAY EAST 830715 1730 022.3 13.3 7.3 09.3 089 114 288
River Mile 083.9 830723 1548 015.0 12.4 7.4 09.8 092 111 252
080810 1255 015.0 10.2 7.5 11.0 098 098 288
830821 1330 012.5 09.0 7.4 11.7 099 111 78
830911 1330 012.8 07.7 7.6 11.6 097 137 43
830927 1434 002.2 -0.2 7.3 12.9 087 150 13
831001 1215 008.6 04.1 7.4 12.5 095 108 16
TALKEETNA RIVER 830715 1630 023.5 11.7 6.8 09.0 090 092 120
.f>o River Mile 097.1 830722 1930 019.0 11.9 7.2 10.0 093 092 125ITRM0.5 830810 1110 015.5 09.1 7.2 11.4 100 081 154""I 830822 1115 011.4 08.8 7.4 11.5 101 094 17N
830917 1255 012.2 05.2 7.6 12.2 096 128 3
831001 1430 012.2 04.6 7.3 12.2 094 085 3
CHULITNA RIVER 830706 1430 06.8 7.8 10.6 089 092
River Mi 1e 098.0 830715 1450 020.2 07.4 7.3 11.5 095 108 624
TRM 0.6 830722 1915 018.2 10.0 7.8 10.2 091 106 590
830723 1318 06.5 7.7 12.7 101 092 671
830810 1150 015.5 05.9 8.3 12.3 100 097 520
830822 1030 011.4 06.1 7.6 12.9 104 098 264
830913 1545 013.0 06.2 7.4 12.2 097 118 120
831003 1000 004.6 01.8 7.7 13.0 094 102 24
J J I J i J I I J I I .1 J J I I J I
--J j J B 1 ]1 .~.i 1 J j j J )j ]
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO).(CO)~(mg/1 )Saturation ~(NTU)
TALKEETNA FISHWHEEL 830518 1600 05.0
CAMP 830519 1000 010.0 04.2 58
River Mile 103.0 830520 1245 014.0 06.1 46
830521 1000 011.0 07.0 31
830522 1000 010.0 06.7 32
830523 0800 008.0 06.5 28
830524 0800 010.0 06.5 24
830525 0830 008.0 06.5 29
830526 0830 009.0 07.1 24
830527 0830 007.8 06.9 22
.po 830528 0830 011.0 07.0 30
I 830529 0830 012.0 07.9 21l>o
I 830530 0830 017.0 09.1 27w
830531 0830 OlD.O 08.0 108
830601 0800 010.0 07.8 136
830602 0810 010.0 07.8 114
830603 0830 009.0 08.0 81
830604 0900 008.0 07.5 160
830605 0900 009.0 07.3 170
830606 0900 013.0 08.9 122
830607 0800 012.0 09.4 100
830608 0830 009.5 09.4 88
830609 0800 010.0 09.4 82
830610 0830 012.0 09.4 65
830611 0900 011.0 09.5 54
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO 1 (CO)-.£!L (mg/l )Saturation cm}(NTU)
TALKEETNA FISHWHEEL 830612 0900 012.4 09.4 7.4 11.1 098 117 44
CAMP 830613 0900 011.0 09.3 7.4 11.2 099 118 60
River Mile 103.0 830614 0915 014.8 09.9 7.4 11.0 097 117 55
830615 0930 012.0 10.2 7.4 10.8 100 118 47
830616 0900 014.0 10.3 7.4 10.8 100 117 49
830617 0920 016.4 10.1 7.5 10.8 100 109 71
830618 0900 013.8 10.7 7.5 10.7 100 114 100
830619 0830 011.6 11.6 7.4 10.5 099 112 92
830620 0900 012.0 11.7 7.4 11.1 104 094 90
830621 0900 014.0 11.4 7.3 10.9 102 108 158
.j::>,830622 0800 013.0 12.3 7.4 11.1 104 116 132I;r:..830623 0820 012.0 12.7 7.4 10.9 100 122 142I
.j::>,830624 0825 013.0 12.1 7.3 10.9 104 120 190
830625 0830 015.0 12.8 7.3 10.8 103 131 200
830626 0800 015.0 13.5 7.4 10.5 102 135 245
830627 0800 013.0 13.1 7.4 11.2 108 142 308
830628 0800 014.0 12.0 7.1 10.8 100 146 356
830629 0900 012.0 11.1 7.6 11.3 105 130 324
830630 0800 012.0 11.5 7.1 11.1 103 137 288
830701 1200 013.0 12.7 .7.2 11.5 110 138 280
830702 1000 014.0 12.6 7.2 11.1 102 140 308
830703 1000 016.0 12.8 7.2 11.8 110 132 324
830704 0900 017.0 13.1 7.1 11.8 112 132 304
830705 1000 018.0 12.9 7.2 11.4 110 134 268
830706 1100 015.0 340
J •.I J ...J I ~.1 I ~<!J I J.1 i I )
--j 1 1 I J -1 j j )]J 1 J )J 1
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO)(CO)J!!L (mg/l )Saturation cm)(NTU)
TALKEETNA FISHWHEEL 830707 0900 015.0 14.0 7.4 09.5 094 120 450
CAMP 830708 1200 014.0 12.6 7.3 09.6 094 117 450
River Mile 103.0 830709 1000 016.0 368
830710 1000 014.0 400
830711 1000 014.0 360
830712 1000 013.0 300
830713 1000 014.0 336
830714 1000 015.0 12.5 7.7 10.3 099 146 278
830715 1000 015.0 12.4 7.6 10.4 098 143 312
830716 1950 016.0 12.6 7.1 09.9 094 135 256..,..830717 0900 016.0 13.1 7.5 10.8 104 162 208
I 830718 0900 015.0 12.4 7.4 10.2 097 154 216):>
I 830719 0900 015.0 10.9 7.5 10.8 098 151 280tTl
830720 0900 017.0 12.7 7.3 10.7 101 145 224
830721 0930 013.8 12.4 7.5 09.6 095 140 166
830722 0900 011.8 12.1 7.3 09.6 090 139 168
830723 1030 013.8 13.2 7.4 09.4 090 133 198
830724 1010 014.0 12.1 7.5 10.2 095 160 216
830725 0915 013.0 11.9 7.5 09.9 093 157 284
830726 0910 016.0 12.5 7.5 09.9 094 164 240
830727 0915 016.0 12.8 7.5 09.8 094 173 220
830728 0920 016.0 13.2 7.5 09.6 093 168 268
830729 0925 016.0 13.7 7.5 09.7 095 173 260
830730 0840 016.0 14.1 7.6 09.4 092 180 276
830731 1110 017 .0 12.6 7.5 09.8 094 167 344
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (~O)~~(mg/1)Saturation ~(NTU)
TALKEETNA FISHWHEEL 830801 0855 015.0 11.8 7.7 09.9 093 170 308
CAMP 830802 0910 015.0 12.2 7.6 09.7 090 168 268
River Mile 103.0 830803 0930 017.0 12.1 7.6 10.9 104 131 284
830804 2010 014.0 12.7 7.6 10.5 100 129 300
830805 0950 015.0 12.0 7.6 10.4 098 129 316
830806 0920 013.0 10.8 7.4 11.0 100 127 324
830807 0920 013.0 10.5 7.4 10.9 100 127 260
830808 0905 011.0 10.7 '7.3 11.1 102 124 232
830809 0950 016.0 10.7 7.4 11.0 100 109 160
830810 0920 009.0 09.9 7.6 11.1 100 114 348
.j:::o 830811 0850 012.0 10.2 7.4 11.3 102 117 308I8308120820012.0 10.9 7.5 10.9 100 124 208);a
I 830813 0745 010.0 10.2 7.4 11.0 100 125 176
0'1
830814 10.2 156
830815 10.1 136
830816 09.9 116
830817 1005 011.0 09.2 7.4 11.5 102 130 96
830818 1005 013.0 09.2 7.4 11.5 102 130 76
830819 0910 011.0 08.9 7.4 11.0 097 131 56
830820 0855 010.0 09.8 7.4 11.0 099 137 61
830821 0915 010.0 09.3 7.4 11.5 102 134 56
830822 0910 .012.0 09.4 7.3 11.4 102 128 62
830823 0835 009.0 08.6 7.3 11.4 099 135 92
830824 0815 008.0 08.6 7.3 11.2 098 132 62
830825 0835 004.0 07.6 7.3 11.7 100 127 74
830826 0815 008.0 07.4 7.3 11.8 100 120 104
I J J I J J -]I I J J J J J I 8 J ,I
J J ]_.)
Table 4-A-l Continued
j )J j j j B I )}
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO)(CO)~(mg/l )Saturation ~(NTU)
TALKEETNA FISHWHEEL 830827 0710 006.0 07.5 7.4 12.0 102 114 122
CAMP 830828 0925 009.6 08.8 7.4 11.8 102 108 88
River Mile 103.0 830829 1715 012.0 09.8 44
830830 1140 012.0 09.5 42
830911 0835 006.2 06.4 7.5 12.7 104 148 13
830912 0845 007.2 06.6 7.5 12.4 102 151 11
830913 1030 009.0 .06.8 17
830914 0845 008.0 06.5 14
830915 0935 006.7 05.6 7.6 12.4 100 152 14
830916 0955 003.0 05.0 13
~830917 0820 000.2 04.0 7.6 13.0 100 156 12
I 830921 1549 013.4 06.4 7.7 12.7 105 158 1»
I 830922 0858 008.8 06.1 7.6 11.8 097 158 4......
830923 0900 002.8 04.9 7.6 12.3 098 152 49
830924 0830 -02.1 02.0 7.6 13.1 096 138 50
830925 0915 000.0 01.0 31
830927 0944 -02.0 -0.4 7.3 13.3 090 046 16
831002 0841 004.7 03.0 7.5 12.6 095 131 2
831003 1140 004.9 02.5 7.8 13.3 098 134 4
831004 1010 001.8 01.3 7.5 13.6 097 134 4
831005 0940 003.8 01.1 7.7 13.7 097 137 2
831103 1245 002.8 00.0 9.6 14.6 100 101 3
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbi dity
Location Date Time (CO)(CO)--.2!L (mg/1 )Saturation cm)(NTU)
CURRY (LRX24)830619 .1300 12.6 7.4 11.0 104 099 74
River Mile 120.0 830706 1220 13.1 7.5 09.7 087 117 512
830716 1615 018.0 13.8 7.2 10.0 097 132 234
830807 1255 012.6 10.8 7.6 11.0 100 125 224
830824 1230 011.8 08.8 7.6 11.9 104 114 60
830915 1645 010.8 06.8 7.4 12.2 100 154 10
830924 1653 -01.2 01.5 7.6 13.7 098 136 36
831004 1230 01.6 16
831005 1315 003.3 01.3 7.5 13.7 098 141 2
.po LRX29 830615 1509 12.2 7.4 10.5 091 III 38IRiverMile125.3 830706 1200 014.0 13.2 7.5 09.9 095 125 448»
I 830716 1930 016.2 13.6 7.4 09.5 093 140 204ex>
830805 1130 013.6 12.1 7.6 10.5 100 140 266
830823 1000 009.6 08.8 7.6 11.4 098 126 72
830914 1715 006.4 06.0 7.6 12.2 097 157 11
830924 1348 -00.2 01.5 7.3 13.5 097 140 42
831102 1600 003.6 00.1 5.3 13.4 094 187 2
GOLD CREEK CAMP 830612 0930 08.2 6.8 12.0 105 086 34
River Mile 136.8 830613 0907 08.1 6.8 12.1 114 084 42
830614 0838 08.6 6.9 11.9 102 086 34
830615 0842 08.8 6.8 11.6 108 081 29
830616 0855 08.7 7.2 11.7 102 078 37
830617 1055 09.3 7.3 11.2 099 077 33
I J I J I J "1 J ,J ..~I m J !J I
B J J 1 i 1 J i )1 j J 1 1 i i
Table 4-A-l Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho!Turbidity
Location Date Time (CO)~--.e!L (mg/1 )Saturation cm)(NTU)
GOLD CREEK CAMP 830618 0900 09.4 7.1 11.6 102 083 52
River Mile 136.8 830619 0925 10.0 7.2 11.4 102 076 50
830629 1855 012.8 10.8 7.4 09.8 090 094
830630 0900 013.8 10.2 7.4 10.2 093 106
830701 0920 012.2 11.0 7.4 10.1 093 108 248
830702 0855 012.8 11.2 7.3 10.1 093 106 272
830703 1226 023.2 11.8 7.2 10.2 095 104 264
830704 1107 023.0 12.2 7.2 10.1 095 097 280
830705 0958 017.8 11.4 7.4 10.2 096 105 232
830706 1000 013.8 12.7 7.4 09.8 093 102 368
.p:.830707 1100 016.5 12.5 7.3 10.2 097 112 298,
830708 0930 11.0 7.2 10.7 098 114 365»,
830709 0930 10.7 7.5 10.5 096 123 330\D
830710 0930 11.0 7.4 10.9 100 123 312
830711 0915 11.3 7.4 11.1 103 123 276
830712 0930 11.2 7.4 12.1 110 132 270
830713 1000 11.5 7.4 13.9 129 126 240
830714 1030 11.7 7.3 125 204
830716 1120 022.0 12.3 8.0 10.9 102 098 172
830717 0856 016.8 12.4 7.7 10.8 102 104 172
830718 0912 011.8 11.0 7.6 11.3 105 105 142
830719 0930 015.2 10.0 7.6 11.5 102 107 186
830720 1815 018.0 13.1 7.4 10.8 104 101 142
830721 0950 015.6 12.2 7.5 11.2 105 114 136
830722 1054 016.2 11.7 7.5 11.3 106 107 148
830723 0945 12.1 7.6 11.0 104 121 156
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidity
Location Date Time (CO)~~l --.e!L (mg/1)Saturation ~(NTU)
GOLD CREEK CAMP 830725 0945 11.6 7.5 11.1 102 111 194
River Mile 136.8 830726 0915 11.6 7.5 10.9 101 112 152
830727 0915 12.7 7.5 10.5 102 117 124
830728 0800 12.5 7.5 10.7 102 117 180
830729 1800 009.5 178
830730 1215 012.0 194
830802 1922 020.4 12.9 8.2 10.8 102 105 264
830803 0915 017.0 11.4 7.8 11.2 104 111 192
830804 0826 013.8 12.1 7.8 11.0 103 110 352
830805 0930 013.4 11.5 7.4 11.3 105 094 248
+::0 830806 0932 012.8 09.9 7.6 11.6 104 093 248I
)::-830807 1145 015.0 10.5 7.2 11.4 103 099 240I
t--'830808 1135 012.6 10.2 7.0 11.0 100 083 176Cl8308090937011.4 09.8 7.3 11.2 098 061 108
830810 0750 008.5 08.4 7.6 12.3 106 088 408
830811 0700 010.5 09.2 7.7 11.4 106 094 270
830812 104
830813 94
830814 60
830815 1320 009.9 07.6 7.2 08.4 073 099 84
830816 0900 008.0 07.0 7.1 08.4 070 101 66
830817 0930 008.7 07.7 7.3 08.3 071 107 38
830818 1630 016.2 09.9 7.2 108 48
830819 1100 014.4 08.7 7.2 08.6 075 114 42
••1 .J I I I I !I J ~J J .1 J c .~I ,
1 l )J ]--J J-j ~J i J ]]J ]j
Table 4-A-1 Continued
Temperature Dissolved Oxygen Conductivity
Air Water Percent (umho/Turbidi ty
Location Date Time (CO)(C())..Jill....(mg/1 )Saturation em)(NTU)
GOLD CREEK CAMP 830820 1215 010.2 09.0 7.0 08.3 074 119 44
River Mile 136.8 830821 1220 010.4 08.6 7.6 11.6 102 104 42
830822 0909 010.6 08.6 7.2 12.2 105 087 50
830823 0916 010.6 08.1 7.4 12.2 103 082 64
830824 0927 007.0 07.7 6.9 12.3 105 090 40
830825 1629 010.6 08.0 7.3 12.5 108 085 68
830826 0956 010.4 06.9 6.9 12.6 104 092 116
830827 1000 010.2 07.3 6.5 13.0 108 092 80
830828 0947 009.7 07.9 7.0 12.9 110 105 48
830831 1120 010.0 07.8 11.6 100 081
+>0 830901 0905 009.1 07.4 11.6 099 095 35I8309021212011.6 07.4 11.6 098 076 40):>
I 830904 1259 012.0 06.2 12.2 100 095 40I-'
I-'830906 1733 010.8 06.5 12.2 099 107 23
830908 1216 010.8 06.4 12.0 098 113 17
830910 1011 007.8 06.4 7.3 12.7 108 HI 13
830911 0917 006.8 06.5 7.3 12.2 100 H8 14
830912 0918 007.7 06.4 7.1 12.6 103 120 13
830913 1147 008.2 06.6 7.2 12.6 102 121 12
830914 0854 006.6 05.6 7.2 12.8 104 124 14
830915 1045 008.4 05.7 7.2 12.7 102 122 11
830916 1100 008.6 05.0 7.3 13.1 102 115
831003 1400 003.0 02.5 7.7 13.3 100 141 12
831004 1645 02.3 7.5 14.3 106 142 12
831005 1948 00.5 7.1 14.3 101 134 7
Table 4-A-l Continued
Tempe ra tu re Dissolved Oxygen Conductivity
Air Water Percent (umho!Turbidity
Location Date Time (CO) (CO)-.£!L (mg/l )Saturation ~(NTU)
GOLD CREEK CAMP 831006 1000 01.0 7.5 13.9 100 132 12
River Mile 136.8 831102 1330 005.2 00.1 6.3 15.0 105 125 1
LRX57 830617 1148 10.4 7.5 11.8 107 102 69
River Mile 142.0 830630 11.2 200
830706 0928 13.0 7.5 10.4 100 123 448
830721 1417 012.6 13.3 7.2 10.8 104 111 168
830804 0856 013.8 12.2 7.7 11.5 109 118 288
830822 1033 011.8 08.5 7.5 12.1 105 113 72
.j:::.830912 1906 008.4 06.8 7.3 12.6 104 150 20I8311021050002.8 00.2 7.6 13.7 097:t:-188 2I.....831003 1000 001.0 02.1 7.6 14.2 105 137 12N
BACK EDDY 830704 392
Ri ve r Mile 150.1 830706 0915 014.4 13.4 7.5 10.4 100 124 448
830805 1155 013.2 11.0 7.7 11.5 106 113 320
830828 1041 009.7 07.9 7.0 12.9 110 105 58
830915 1600 008.8 05.7 7.2 13.5 109 153 10
831005 1100 00.1 7.4 15.1 105 163 13
I I J I •,J I J !I I ~~i ~.,I I
j j J j -}]J J ]J
Appendix Table 4-A-2.Comparisons of periodic water quality (temperature and turbidity),water surface
elevations (WSEL)and streamflow collected at selected non-mainstem locations 1
upstream of Talkeetna with mean daily mainstem discharge at Gold Creek (15292000)
Sus itna
Estimated 2 River
Temperature (DC)Turbidity WSEL flow Discharge
Location Date Time Water Air NTU (ft.)(cfs)(cfs)
Whiskers Slough Q site 830911 0945 7.1 9.0 2 365.70 0.5 12200
gage no.101.2S3 831001 1520 4.8 9.3 1 365.82 0.2 13200
RM 101.4 830716 1130 10.8 18.8 2 365.70 0.5 16400
830722 1840 16.4 21.6 2 365.72 0.4 18600,
830822 1255 7.4 14.6 2 365.75 0.3 21600':
830618 1225 14.6 NA 68 365.95 10.2 22900
~Slough 6A Mouth 831004 1110 2.1 3.5 2 455.92 31 11400I
):>gage no.112.3W1 830912 1145 7.2 12.2 3 455.80 31 11600I
t-'RM 112.3 830716 1400 12.2 20.2 29 456.52 31 16400w
830722 1720 16.0 19.2 80 456.86 31 18600
830822 1655 10.0 14.2 4 457.22 3/21600
830805 1510 12.8 14.2 140 457.20 3/21700
830826 1530 10.0 16.4 16 458.13 3/31700
Slough 8 Q site 831004 1230 4.2 5.8 1 468.01 2.0 11400
gage no.113.6S2 830912 1600 7.4 12.7 1 467.94 1.9 11600
RM 113.7 830716 1430 9.2 19.2 1 467.98 1.9 16400
830722 1730 10.2 22.2 1 468.15 2.2 18600
830805 1450 8.2 14.4 1 468.70 3.4 21700
830825 1710 7.4 12.4 2 470.58 12.5 27400
830809 1815 11.8 15.8 140 470.36 10.9 29900
830826 1610 8.9 18.6 60 470.58 12.5 31700
1 USGS provisional data,19832FlowestimatedUSingstage/flow rating curve determined for the study site (refer to Chapter 1 of this
3 report).
Stage/flow rating curve not developed for this site.
Appendix Table 4-A-2 (Continued)
lSusitna
Estimated River
Temperature (OC)Turbidity WSEL flow Di scha rge
Location Date Time Water Air NTU (ft.)(cfs)(cfs)
Mainstem 2 Side Channel 830917 1025 3.0 3.9 1 478.84 33.7 10000
NW Channel Q site 831004 1340 3.9 8.2 2 479.10 48.6 11400
gage no.114.455 830722 1405 13.8 20.4 220 480.64 350 18600
RM 115.4 830611 1830 9.9 15.6 53 480.66 359 19000
830805 1315 12.3 14.1 294 481.31 758 21700
830806 1730 11.1 18.8 280 481.60 1044 23800
830808 1440 11.3 13.4 192 481.89 1426 26000
830825 1300 8.4 13.4 84 481.97 1553 27400
Mainstem 2 Side Channel 830917 1040 3.9 5.2 1 480.41 3.4 10000
+>0 NE Channel Q site 831004 1450 3.2 8.1 1 480.38 3.1 11400I;po gage no.114.458 830721 2000 15.0 16.2 2 480.44 3.6 18100I
I-'RM 115.5 830805 1335 14.0 13.8
3 480.46 3.7 21700+>0 830806 1900 14.8 14.4 156 480.57 4.8 23800
830808 1530 11.4 14.2 168 481.28 21 26000
830825 1605 9.3 12.4 76 481.31 22 27400
830826 1925 8.2 12.6 184 482.88 432 31700
Slough 8A 830915 1515 9.4 10.2 2 566.01 0.6 10600
NW Channel Q site 831003 1350 6.2 7.8 2 566.10 1.0 13000
gage no.125.353 830924 1246 2.4 0.2 1 566.08 0.8 15200
RM 125.3 830716 1800 14.0 18.0 1 566.11 1.0 16400
830721 1150 13.4 18.5 1 566.00 0.5 18100
830804 1130 9.4 13.2 1 566.03 0.6 20900
830823 1340 9.0 11.4 1 566.05 0.7 22700
830809 1245 11.7 15.9 126 566.44 7.3 29900
830827 1320 9.3 19.0 75 566~80 8.1 31000
1 Flow estimated using stage/flow rating curve determined for the study site (refer to Chapter 1 of this
report)•
-J }J J !!I J ~I I I .~~,I
)J i J .~J I i 1 J 1 ]]J .j
Appendix Table 4-A-2 (Continued)
Susitna
Estimated 1 River
Temperature (DC)Turbidity WSEl flow Di scharge
location Date Time Water Air NTU (ft.)(cfs)(cfs)
Slough 8A 830915 1505 9.8 10.6 1 567.22 2/10600
NE Channel Q site 830924 1315 0.6 1.0 1 567.29 2/15200
gage no.125.351 830716 1820 15.4 18.0 1 566.20 2/16400
RM 125.8 830721 1250 15.6 18.7 1 566.33 2/18100
830615 1615 NA .NA 1 566.09 2/19600
830804 1220 11.2 13.8 1 566.60 2/20900
830823 1210 9.2 18.4 2 566.97 2/22700
830630 1404 NA NA 1 566.08 2/24700
830809 1130 11.6 16.2 1 566.91 2/29900
830827 1125 9.6 15.2 1 567.07 2/31000
oj:::>Slough 8A 831003 1310 6.2 3.0 2 563.68 8.6 13000
I;p B/l Beaver Dam 830924 1224 1.4 0.2 1 563.60 6.3 15200IW.Channel 830721 1430 6.2 17.2 1 563.51 4.4 18100.......
(Jl gage no.125.354 830804 1320 NA 13.2 1 563.57 5.6 20900
RM 125.7 830823 1400 10.2 14.0 1 563.66 8.0 22700
830827 1427 11.0 18.8 78 564.14 46.6 31000
Slough 9 Q site 830914 0955 5.8 9.9 1 593.27 6.9 10700
gage no.128.351 831003 1515 4.2 6.6 1 593.50 14.3 13000
RM 128.9 830924 1550 2.6 1.0 2 593.33 8.5 15200
830716 2200 11.0 14.6 3 593.27 7.0 16400
830721 1745 16.0 15.4 54 593.36 3/9.3 18100
830805 0900 NA NA 126 =)/3/18200
830618 1450 NA NA 64 3/22900
830630 1030 12.1 NA 200 594.00 58.9 24700
830824 1135 9.0 8.6 64 594.05 67.2 24700
830809 1540 11.9 17.2 224 595.11 788 29900
1 Flow estimated using stage/flow rating curve determined for the study site (refer to Chapter 1 of this
2·report.
3 Stage/flow rating curve not developed for this site.
Data not available.
Appendix Table 4-A-2 (Continued)
1Susitna
Estimated River
Temperature (OC)Turbidity WSEL flow Discharge
Location Date Time Water Air NTU (ft.)~(cfs)
Side Channel 10 830911 1115 8.4 12.6 1 654.27 3.0 12200
Q site FHU 4 831003 1225 6.4 7.0 2 654.30 3.2 13000
gage no.133.8S3 830717 1100 8.2 17.2 2 654.30 3.2 16500
RM 134.2 830803 .1703 13.6 NA 304 655.18 118 21600
830823 1330 8.8 12.6 64 655.54 157 22700
830618 1600 NA NA 89 __2 __2 22900
830808 1310 10.2 NA 184 656.27 264 26000
830629 1610 10.3 NA 200 656.09 234 26800
830826 1713 7.8 12.3 152 657.97 730 31700
830810 1233 9.5 NA 440 658.26 849 31900
-Po
I 830915 1751 6.7 2 670.67J::-Slough 11 Q site 8.8 1.5 10600I
I-'gage no.135.356 831004 1340 2.0 4.8 2 670.67 1.5 114000'1 RM 135.7 830721 1110 8.8 17.8 1 670.72 2.5 18100
830718 1040 7.8 17.2 12 670.72 2.5 18900
830823 1524 6.8 12.7 1 670.73 2.8 22700
830618 1530 NA NA 3 __2 __2 22900
830806 1155 7.8 13.8 1 670.73 2.8 23800
830629 950 8.0 NA 1 670.76 3.8 26800
Upper Side Channel 11 830911 1745 7.9 14.1 2 680.63 5.7 12200
Q site 830720 0940 11.6 16.2 104 681.34 49 18600
gage no.136.2S1 830806 1345 10.5 NA 248 681.95 247 23800
RM 136.5 830808 1450 10.4 12.4 184 682.24 513 26000
830629 1255 10.9 --200 682.13 390 26800
830826 1835 7.8 12.4 152 682.93 2615 31700
830810 1438 10.5 --368 682.87 2283 31900
1 Flow estimated using stage/flow rating curve determined for the study site (refer to Chapter 1 of this
2 report.
Data not available.
i J I J J l I I I I .~J I ]J )I 1 _I
)-1 1 )i 1\,J -)]j .~]--1 ]
Appendix Table 4-A-2 (Continued)
Susitna
Estimated 1 River
Temperature (OC)Turbidi ty WSEL flow Di scha rge
Location Date Time Water Air NTU (ft·l (cfs)lffs)
Slough 168 Q site 830703 NA 11.2 NA 96 --2/- -
2/26200
gage no.138.055
RM 138.0
Slough 19 Q site 830914 1110 4.6 7.8 2 7:~.042/3/10700
gage no.140.054 831003 1120 3.2 1.4 1 3/13000
RM 139.9 830721 1833 8.1 16.6 1 720.29 3/18100
830804 1532 6.1 13.8 1 720.80 3/20900
~830616 1555 8.4 NA 1 NA 3/21600
I 830823 1806 NA 11.0 2 720.97 3/22700»
I 830629 1635 6.0 NA 3 721.39 3/26800......
"830809 1632 10.8 17 .8 1 722.25 3/29900
Slough 20 Q site 830913 1915 6.2 8.4 2 726.75 5.4 11100
gage no.140.155 831003 1100 1.8 3.8 1 727.00 11.0 13000
RM 140.2 830721 1804 11.8 16.6 3 726.64 4.0 18100
830804 1511 9.4 13.8 2 726.69 4.5 20900
830701 1212 8.0 NA 2 726.77 5.7 23100
830824 1258 7.6 17.0 14 726.93 9.0 24700
830809 1606 10.6 17.8 168 727.65 62.0 29900
1 Flow estimated using stage/flow rating curve determined for the study site (refer to Chapter 1 of this
2 report.
3 Data not available.
Stage/flow rating curve not developed for this site.
Appendix Table 4-A-2 (Continued)
ISusitna
Estimated River
Temperature (OC)Turbidity WSEL flow Discharge
Location Date Time Water Air NTU (ft.)(cfs)(cfs)
Side Channel 21 Lower 830912 1524 9.2 14.4 12 736.11 39.2 12200
Q site and FHU 4 830721 1735 13.2 16.6 176 737.02 314 18100
gage no.140.6S4 830804 1339 12.6 13.8 288 ~3~.202/~5~2/20900
RM 141.1 830616 1330 11.7 NA 41 21600
830822 1707 9.0 16.4 30 737.29 553 21600
830630 1430 12.6 NA 200 737.36 639 24700
830809 1150 10.2 17 .8 232 737.73 1333 29900
Slough 21 Q site 830913 1634 6.0 9.8 2 745.02 3.9 11100+:>gage no.142.056 831003 1030 2.8 0.2 1 745.02 3.9 13000I
)::-RM 142.0 830721 1525 11.2 16.6 3 744.99 3.9 18100I.......830804 1113 5.4 13.8 2 ~4:.002/~·~2/20900co
830616 1245 8.4 NA 1 21600
830822 1352 6.0 14.4 3 745.07 3.9 21600
830630 1115 8.1 NA 1 745.03 3.9 24700
830809 1510 10.8 17.8 204 "746.03 32.2 29900
Slough 22 Q site 830702 1632 12.8 NA 288 784.04 13.5 24900
gage no.144.356
Rf·l 144.6
1 Flow estimated using stage/flow rating curve determined for the study site (refer to Chapter 1 of this
2 report.
Data not available.
)_I J J J t I I I I I ~~..~)J I
-1 J -J i -1 1 J ~]-1 J
Appendix Table 4-A-3.Incidental water quality data (temperature and turbidity)compared to tributary
stream flow water surface for Indian River and Whiskers Creek for the 1983 open water
field season.
Location
Indian River Q site
gage no.138.6T2
RM 138.6
Whiskers Creek Q site
gage no.101.2T2
RM 101.4
Tributary2/
Temperature (OC)Turbidi ty Streamflow
Date Time Water Air NTU ~
830913 0946 6.2 8.0 1 244
831003 1615 3.4 4.8 1 1049
830721 1255 12.6 18.2 7 84
830705 1140 9.9 NA 2 384
830827 1326 8.8 18.3 1 433
830618 1225 13.4 --2/1 12
.p-
I
:I:>
I.....
1.0
1 Streamflow estimated from observed water surface elevation utilizing the stage/flow rating curve
developed for the study site (refer to Chapter 1 of this report).
2 Data not available