U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
STEINAKER RESERVOIR
UINTAH OOUfdY
UTAH
EPA REGION VIII
WORKING PAPER No, 859
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
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REPORT
ON
STEINAKER RESERVOIR
UINTAH COUNIY
UTAH
EPA REGION VIII
WORKING PAPER No, 859
WITH THE COOPERATION OF THE
UTAH STATE DIVISION OF HEALTH
AND THE
UTAH NATIONAL GUARD
DECEMBER, 1977
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CONTENTS
Page
Foreward ii
List of Utah Study Lakes and Reservoirs iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings 8
V. Literature Reviewed ' 12
VI. Appendices . 13
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ii
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)j, clean lakes [§314(a,b)j,
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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iii
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGEMENT
The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the Utah Department of Social
Services and the Utah Department of Natural Resources for pro-
fessional involvement, to the Utah National Guard for conducting
the tributary sampling phase of the Survey, and to those Utah
wastewater treatment plant operators who voluntarily provided
effluent samples and flow data.
The staffs of the Bureau of Water Quality of the Division
of Health and the Division of Wildlife Resources provided inval-
uable lake documentation and counsel during the Survey, reviewed
the preliminary reports, and provided critiques most useful in
the preparation of this Working Paper series.
Major General Maurice L. Watts, the Adjutant General of Utah,
and Project Officer Lt. Colonel T. Ray Kingston, who directed the
volunteer efforts of the Utah National Guardsmen, are also grate-
fully acknowledged for their assistance to the Survey.
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IV
NATIONAL EUTROPHI CATION SURVEY
STUDY LAKES AND RESERVOIRS
STATE OF UTAH
NAME
Bear
Deer Creek
Echo
Fish
Flaming Gorge
Huntington
Joes Valley
Lower Bowns
Lynn
Minersville
Moon
Navajo
Newcastle
Otter Creek
Panguich
Pelican
Pineview
Piute
Porcupine
Powel 1
Pruess
Sevier Bridge
Starvation
Steinaker
Tropic
Utah
Willard Bay
COUNTY
Rich, UT; Bear Lake, ID
Wasatch
Summi t
Sevier
Daggett, UT;
Sweetwater, WY
Emery
Emery
Garfield
Box Elder
Beaver
Duchesne
Kane
Iron
Piute
Garfield
Uintah
Weber
.Piute
Cache
Garfield, Kane, San
Juan, UT; Coccnino, AZ
Mi Hard
Juab, Sanpete
Duchesne
Uintah
Garfield
Utah
Box Elder
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V
/
Utah
Map Location
V V
\ X.
$w>g C£-^. ;x
** ''^\.
;o
STEINAKER
RESERVOIR
40°35'
STEINAKER RESERVOIR
Tributary Sampling Site
Lake Sampling Site
4 Km.
J
Scale
2 Mi.
40°30'-
109"35
109°30'
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STEINAKER RESERVOIR
STORE! NO. 4922
CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Steinaker Reservoir is meso-
trophic. It ranked fifth in overall trophic quality when the
27 Utah lakes and reservoirs sampled in 1975 were compared
using a combination of six parameters*. Two of the water
bodies had less and two had the same median total phosphorus,
eight had less and one had the same median dissolved ortho-
phosphorus, none of the others had less but ten had the same
median inorganic nitrogen, one had less mean chlorophyll a^,
and three had greater mean Secchi disc transparency. Marked
depression of dissolved oxygen with depth occurred at sampling
station 2 in September (2.4 mg/1 at 15.2 meters).
B. Rate-Limiting Nutrient:
There was a significant change in nutrients in the algal
assay samples from the time of collection to the beginning of
the assays. Therefore, the results are not considered repre-
sentative of conditions in the reservoir at the times the
samples were taken.
The reservoir data indicate nitrogen limitation in May
and September and phosphorus limitation in August.
* See Appendix A.
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2
C. Nutrient Controllability:
1. Point sources—No known point sources impacted
Steinaker Reservoir during the sampling year.
The phosphorus loading of 0.11 g/m2 measured during the
sampling year is less than that proposed by Vollenweider
(Vollenweider and Dillon, 1974) as an oligotrophic loading
(see page 11). However, it is likely that too few tributary
samples were taken to establish the actual loading. Note that
only eight samples were collected from the Feeder Canal, four
were taken from Steinaker Ditch, none were obtained from
Steinaker Draw and Spring Creek, and only two outlet samples
were collected (see Appendix E).
2. Non-point sources—The estimated phosphorus contri-
butions of the four tributaries amounted to 82% of the total
load. However, as noted above, sampling frequency was mini-
mal, and a more intensive sampling effort is needed to deter-
mine the actual tributary loads.
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II. RESERVOIR AND DRAINAGE BASIN CHARACTERISTICS1"
A. Morphometry :
1. Surface area: 3.32 kilometers2.
2. Mean depth: 14.0 meters.
3. Maximum depth: 39.6 meters.
4. Volume: 47.082 x 106 m3.
5. Mean hydraulic retention time: 2. years (based on outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Steinaker Feeder Canal 0.0 0.754
Steinaker Ditch 0.0 0.010
Steinaker Draw 17.1 0.013
Spring Creek 16.6 0.013
Minor tributaries &
immediate drainage - 17.4 0.014
Totals 51.1 0.804
2. Outlet -
Steinaker Service Canal 54.4** 0.732
C. Precipitation***:
1. Year of sampling: 18.1 centimeters.
2. Mean annual: 18.9 centimeters.
t Table of metric equivalents—Appendix B.
tt Sudweeks, 1975.
* For limits of accuracy, see Working Paper No. 175, "... Survey Methods,
1973-1976".
** Includes area of reservoir.
*** See Working Paper No. 175.
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4
III. WATER QUALITY SUMMARY
Steinaker Reservoir was sampled three times during the open-water
season of 1975 by means of a pontoon-equipped Huey helicopter. Each
time, samples for physical and chemical parameters were collected from
a number of depths at three stations on the reservoir (see map, page v).
During each visit, a single depth-integrated (4.6 m to surface) sample
was composited from the stations for phytoplankton identification and
enumeration; and during the first and last visits, a single 18.9-liter
depth-integrated sample was composited for algal assays. Also each
time, a depth-Integrated sample was collected from each of the stations
for chlorophyll ^analysis. The maximum depths sampled were 12.2 meters
at station 1, 27.7 meters at station 2, and 5.8 meters at station 3.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
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A. SUMMARY OF PHYSICAL AND
CHEMICAL CHARACTERISTICS FOH
STORET CODE 4922
STEINAKER RESERVOIR
PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
RANGE
7.3 - 11.4
8.8 - 10.0
230. - 254.
8.3 - 8.6
114. - 118.
0.010 - 0.017
0.010 - 0.012
0.020 - 0.020
0.020 - 0.030
0.200 - 0.400
0.040 - 0.050
0.220 - 0.420
1.6 - 1.9
5.8 - 5.8
NG ( 5/13/75)
TES
MEAN
9.5
9.4
242.
8.5
lib.
0.013
0.011
0.020
0.021
0.250
0.041
0.270
1.7
5.8
MEDIAN
10.0
9.4
245.
8.5
116.
0.012
0.011
0.020
0.020
0.200
0.040
0.220
1.7
5.8
2ND
RANGE
8.0 -
4.4 -
210. -
7.9 -
86. -
0.010 - 0
0.002 - 0
0.020 - 0
0.020 - 0
0.200 - 0
0.040 - 0
0.220 - 0
1.8 -
3.4 -
SAMPLING ( 8/
3
22.9
7.8
272.
9.2
104.
.031
.015
.140
,150
.200
.290
.340
2.3
4.3
SITES
MEAN
18.4
6.9
255.
8.6
90.
0.015
0.006
0.039
0.064
0.200
0.103
0.239
2.1
3.8
7/75)
MEDIAN
21.0
7.3
266.
8.7
89.
0.011
0.004
0.020
0.050
0.200
0.070
0.220
2.2
3.7
3RD
RANGE
12.8 -
2.4 -
189. -
7.6 -
99. -
0.008 - 0
0.002 - 0
0.020 - 0
0.020 - 0
0.200 - 0
0.040 - 0
0.220 - 0
1.6 -
4.6 -
SAMPLING ( 9/22/75)
3
19.7
7.6
221.
8.6
113.
.033
.028
.190
.020
.200
.210
.390
1.8
5.2
SITES
MEAN
18.0
6.7
213.
8.3
101.
0.012
0.005
0.038
0.020
0.200
0.058
0.238
1.7
4.8
MEDIAN
18.7
7.1
215.
8.4
100.
0.009
0.002
0.020
0.020
0.200
0.040
0.220
1.7
4.6
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B. Biological characteristics:
1. Phytoplankton -
Sampl i ng
Date
05/13/75
08/07/75
09/22/75
Dominant
Genera
1.
2.
3.
4.
1.
2.
3.
1.
2.
3.
Chroomonas sp.
Cryptomon_as_ sp.
Ankistrodesmus sj>.
Cyclotella sp.
Total
Aphanocapsa sp.
Chroomonas sp.
Schroederia sp.
Total
Aphanocapsa SJD.
Chroomonas sp.
Asterionella sp.
Algal Units
per ml
533
267
200
33
1,033
253
95
32
380
201
134
34
2. Chlorophyll a^
Sampling
Date
.05/13/75
08/07/75
09/22/75
Total
Station
Number
1
2
3
1
2
3
1
2
3
369
Chlorophyll a_
(yg/D
1.6
1.9
1.7
1.8
2.3
2.2
1.7
1.6
1.8
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7
C. Limiting Nutrient Study:
A significant change in nutrients occurred in the algal
assay samples from the time of collection to the beginning
of the assays. Therefore, the results are not considered
representative of conditions in the reservoir at the times
the samples were taken (05/13/75 and 09/22/75).
The reservoir data indicate nitrogen limitation in May
and September and phosphorus limitation in August; i.e., the
mean inorganic nitrogen/orthophosphorus ratios were 4/1, 12/1,
and 17/1, respectively.
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IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Utah National
Guard collected monthly near-surface grab samples when possible from
each of the tributary sites indicated on the map (page v), except
for the high runoff month of June when two samples were collected
at two of the sites. Sampling was begun in November, 1974, and was
completed in September, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Utah District Office of the U.S. Geological Survey for the tri-
butary sites nearest the reservoir.
In this report, nutrient loads for sampled tributaries were cal-
culated using mean annual concentrations and mean annual flows. Nu-
trient loads for unsampled Steinaker Draw, Spring Creek, and
"minor tributaries and immediate drainage" ("II" of U.S.G.S.) were
estimated using the mean concentrations in Steinaker Feeder Canal
and Steinaker Ditch at stations B-l and C-l and the mean annual
ZZ flow.
No known wastewater treatment plants impacted Steinaker Reser-
voir during the year of sampling.
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9
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source ^r total
a. Tributaries (non-point load) -
Steinaker Feeder Canal 285 78.1
Steinaker Ditch 5 1.4
Steinaker Draw 5 1.4
Spring Creek 5 1.4
b. Minor tributaries & immediate
drainage (non-point load) - 5 1.4
c. Known municipal STP's - None
d. Septic tanks - Unknown ?
e. Known industrial - None
f. Direct precipitation* - 60 16.3
Total 365 100.0
2. Outputs -
Reservoir outlet - Steinaker 460
Service Canal
3. Net annual P loss - 95 kg.
* See Working Paper No. 175.
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10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Steinaker Feeder Canal 13,910 76.3
Steinaker Ditch 110 0.6
Steinaker Draw 205 1.1
Spring Creek 205 1.1
b. Minor tributaries & immediate
drainage (non-point load) - 220 1.2
c. Known municipal STP's - None
d. Septic tanks - Unknown ?
e. Known industrial - None
f. Direct precipitation* - 3,585 19.7
Total 18,235 100.0
2. Outputs -
Reservoir outlet - Steinaker 18,165
Service Canal
3. Net annual N accumulation - 70 kg.
D. Mean Nutrient Concentrations in Sampled Streams:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
Feeder Canal (B-l) 0.012 0.585
Steinaker Ditch (C-l) 0.020 0.343
Service Canal (outlet) 0.020 0.787
See Working Paper No. 175.
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11
E. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweiders model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/m2/yr 0.11 loss* 5.5 < 0.1*
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Steinaker Reservoir:
"Dangerous" (eutrophic loading) 0.48
"Permissible" (oligotrophic loading) 0.24
* The apparent loss of phosphorus and the minimal retention of nitrogen
probably are due to insufficient tributary and outlet sampling (see
page 2).
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12
V. LITERATURE REVIEWED
Sudweeks, Calvin K., 1975. Personal communication (reservoir mor-
phometry). UT Bur. of Env. Health, Salt Lake City.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
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VI. APPENDICES
13
APPENDIX A
LAKE RANKINGS
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LAKE DATA JO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
0408 LAKE POWELL
4901 BEAR LAKE
091)2 LOWER BOtfN'S RESERVOIR
4903 DEER CREEK RESERVOIR
4904 ECHO RESERVOIR
4905 LYNN RESERVOIR
4906 risH LAKE
4907 HUNTINGTON NORTH RESERVO
4908 JOE'S VALLEY RESERVOIR
4909 HtNERSVlLLE RESERVOIR
4910 MOON LAKE
4911 NAVAJO LAKE
4912 NEWCASTLE RESERVOIR
4913 OTTER CREEK RESERVOIR
4914 PAN9UITCH LAKE
»9l5 PELICAN LAKE
4916 P1NEVIEW RESERVOIR
4917 PIUTE RESERVOIR
4918 PORCUPINE RESERVOIR
4919 PRUESS RESERVOIR (GARRIS
4920 SEVIER BRIDGE RESERVOIR
4921 STARVATION RESERVOIR
4922 STEINAKER RESERVOIR
4923 TROPIC RESERVOIR
4924 UTAH LAKE
4925 WILLARO BAY RESERVOIR
5605 FLAMING GORGE RESERVOIR
MEDIAN
TOTAL P
0.010
0.011
0.031
0.03B
0.047
0.121
0.023
0.013
0.012
0.192
0.008
0.016
0.051
0.067
0.071
0.9»*
Oi028
0.047
0.02S
0.057
0.026
0.016
0.011
0.021
0.132
0.044
0.011
MEDIAN
INORG N
0.410
0.040
0.040
0.215
0.170
0.200
0.040
0.040
0.045
0.060
0.040
0.040
0.040
0.040
0.040
0.090
0.300
0.150
0.110
0.140
0.355
0.040
0.040
0.050
0.320
0.060
0.690
500-
MEAN SEC
339.830
253.167
336.000
430.333
450.333
417.667
152.000
392. OOi)
400.000
445.000
381.000
368.000
428.667
453.667
426.500
438.900
OS. 063
482.625
440.000
491.000
449.778
394.583
316.750
425.000
490.583
457.182
285.636
HE AN
CHLORA
3.081
0.945
5.567
9.078
6.967
39.600
12.483
1.900
2.483
33.583
2.700
2.000
12.467
11.767
45.950
6.390
5.692
25.329
7.860
4.533
18.222
5.675
1.844
7.200
72.012
7.567
2.500
15-
MIN DO
13.800
9.200
9.400
14.800
14.000
10.400
10.400
7.800
11.200
8.600
9.600
6.000
13.600
10.600
14.200
8. 400
14.600
11.600
12.400
8.800
12.400
13.200
12.600
8.400
11.400
11.000
10.400
MEDIAN
DISS OUT HO
0.007
0.003
0.006
0.006
0.012
o.os<;
0.004
0.005
0.003
0.107
0.002
0.003
0.009
0.033
.0.010
O.OOfr
0.006
0.007
0.011
0.008
0.008
0.004
0.005
0.006
0.012
0.009
0.003
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LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME
I 4901 BEAR LAKE
2 4911 NAVAJO LAKE
3 4910 MOON LAKE
4 490? HUNTINGTON NORTH RESERVO
5 4922 STEINAKER RESERVOIR
6 4908 JOE'S VALLEY RESERVOIR
7 S60S FLAMING GORGE RESERVOIR
8 4902 LOWER BOWN'S RESERVOIR
9 4906 FISH LAKE
10 4921 STARVATION RESERVOIR
11 4923 TROPIC RESERVOIR
12 49IS PELICAN LAKE
13 0406 LAKE POWELL
14 4919 PRUESS RESERVOIR (GARRIS
IS 4912 NEWCASTLE RESERVOIR
10 441* PINIV1EW RESERVOIR
IT 4918 PORCUPINE RESERVOIR
18 492S HILLARD BAY RESERVOIR
19 4913 OTTER CREEK RESERVOIR
20 4903 OEER CREEK RESERVOIR
21 4920 SEVIER BRIDGE RESERVOIR
22 4909 MINERSVILLE RESERVOIR
23 4917 PIUTE RESERVOIR
24 4905 LYNN RESERVOIR
25 4914 PANQUITCH LAKE
26 4904 ECHO RESERVOIR
27 4924 UTAH LAKE
INDEX NO
540
506
506
468
448
428
415
406
391
389
363
343
311
241
229
223
217
216
210
196
174
168
165
163
162
152
75
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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER Of LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
04oa LAKE POWELL
4901 BEAR LAKE
4902 LOWER BOWN'S RESERVOIR
4903 DEER CREEK RESERVOIR
4904 ECHO RESERVOIR
4905 LYNN RESERVOIR
4906 FISH LAKE
490? HUNTlNOTON NORTH RESERVO
4908 JOE'S VALLEY RESERVOIR
4909 MINERSVILLE RESERVOIR
4910 MOON LAKE
4911 NAVAJO LAKE
4912 NEWCASTLE RESERVOIR
4913 OTTER CREEK RESERVOIR
4914 PANiUITCH LAKE
4915 PELICAN LAKE
4916 PINCVIEW RESERVOIR
4917 P1UTE RESERVOIR
4918 PORCUPINE RESERVOIR
4919 PRUESS RESERVOIR (GARRIS
4980 SEVIER BRIDCE RESERVOIR
4921 STARVATION RESERVOIR
4923 STEINAKER RESERVOIR
4923 TROPIC RESERVOIR
4924 UTAH LAKE
4925 WILLARD BAY RESERVOIR
5605 FLAMING GORGE RESERVOIR
MEDIAN
TOTAL P
96
90
'.6
42
31
a
62
77
81
0
ioo
69
23
IS
12
37
50
27
sa
19
54
73
85
65
4
37
90
1 25)
1 23)
1 121
t ID
1 8)
( 2)
1 16)
1 20)
1 21)
< 0)
4 26)
( IB)
( 6)
( 4)
( 3)
4 «)
( 131
( 7)
( 15)
1 5)
< 14)
< 19)
( 22)
( 17)
4 1)
1 9)
4 23)
MEDIAN
INORG N
4 4
87 4
87 4
19 4
27 4
23 4
65 4
65 4
58 4
44 4
87 4
87 4
87 4
87 4
65 4
54 »
19 «
31 4
38 4
35 4
a 4
87 4
87 4
SO 4
12 4
44 4
0 4
1>
19)
19)
S)
7)
6)
16)
16)
15)
11)
19)
19)
19)
19)
16)
14)
4)
8)
10)
9)
2)
19)
19)
13)
3)
11)
0)
500-
MEAN SEC
81
96
85
42
19
58
100
69
62
27
73
77
46
15
50
39
38
8
31
0
23
65
88
54
4
12
92
4 21)
4 25)
4 22)
1 11)
4 5>
4 15)
4 26»
4 18)
4 16)
4 7)
4 19)
4 20)
4 12)
4 4)
4 13)
4 «>
1 101
4 2>
4 8)
4 0)
4 6)
4 17)
4 231
4 14)
4 1)
4 3)
4 24)
MEAN
CHLORA
73
&00
65
35
50
8
23
92
as
12
77
88
27
31
4
54
56
15
38
69
19
62
96
46
0
42
8}
1 19)
4 26)
4 17)
4 9)
4 13)
4 2)
4 6)
4 24)
4 22)
4 3)
4 20)
4 23)
4 7)
4 8)
4 1)
4 14)
J IS)
4 4)
4 10)
4 18)
4 5)
4 16)
4 25)
4 12)
S 0)
4 ID
4 211
Is-
MlN DO
15
77
73
0
12
62
62
96
46
85
69
100
19
54
8
90
«
38
33
81
33
23
2?
90
42
50
62
4
4
4
4
4
4
4
(
4
4
4
<
4
4
4
4
{
4
4
4
4
I
4
4
<
(
<
4)
20)
19«
0)
31
15)
IS)
25)
121
22)
18)
26)
5)
14)
2)
23)
I)
10)
8)
21)
8)
6)
7)
23>
111
13)
15B
MEDIAN
DISS ORTHO P
42
90
50
58
13
4
79
69
96
0
ioo
85
27
8
23
73
SB
46
19
37
37
79
65
58
13
31
90
4 11)
4 23)
4 13)
( 14)
( 3)
4 1)
( 20)
< 18)
4 25)
4 0)
4 26)
4 22)
4 7)
4 2)
4 6)
4 19)
4 14)
4 12)
4 S)
4 9)
4 9)
4 201
4 17)
4 14)
4 3)
i 8)
( 231
INDEX
NO
311
540
406
196
1*2
163
341
468
428
168
506
50b
224
210
162
343
223
165
217
241
174
389
44B
363
75
216
015
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
-4
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
<
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 » Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY Fi-Gfe' u
LAKE COOg 49?2 SYEKNAKER 8ES0
TOTAL DRAINAGE AREA OF LAKECS© KM> 54 0 4
SUB-DRAINAGE
TRIBUTARY AREAJS© Kr9)
4922A1 S^o'fe
4922B1 6e0
4922CI 9.0
4922DI 17.1
4922EI 16.6
4922ZZ 20.7
JAW
0.0
9.736
0.0
6.0
0.0
9.0
FES
C99
0.68®
o.o
9.0
0.0
0.0
MAR
9.©
0.7§8
0.0
0.0
0.0
00®
APR
0»227
8.19S
0.0
0.0
0.9
0.0
NAY
2.265
0,0
0.0
JUM
9.788
2.237
©.057
0.035
0.065
3.099
FLOHSJCHSS
:UL AUG
132 g.435
13 ®z®57
57 9*006
71 a»c
71 0.003
71 0.®
SEP
S. 246
0»0
0.0
o.c
c.o
0.0
OCT
0.346
a. H3
o.o
3.0
0.©
o.e
Ni
e.e
i.O
0.0
0.0
0.0
0.0
DEC
SUMMARY
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS *
54.4
54.4
TOTAL FLOW IN
TOTAL FLOS OUT
9.66
8.69
MEAN MONTHLY FLOWS AND DAILY FLOWS922A1
FLOW DAY
FLOW DAY
FLOW
4922B1
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
74
74
75
75
75
75
75
75
75
75
75
75
74
74
75
75
75
75
75
75
75
75
75
75
0.0
0.0
0.0
o.o
0.0
0.008
0.008
0.170
0.623
2.747
2.010
0.340
0.708
0.566
0.595
0.566
0.623
0.368
1.104
5.663
0.142
0.0
0.0
0.0
9
15
12
e
8
6
5
7
14
16
10
15
12
8
8
6
2
7
14
16
0.0
0.0
0.®
0.0
0.0
0.0
0.0
0.0
0.0
2.549
0.736
0.623
0.538
0.595
0.651
0.623
0.227
9.911
0.170
0.0
18
22
18
22
0.0
0.396
0.850
0.566
0.0
0.0
0.0
0.0
MEAN
».732
0.7S4
c.oie
0.013
0.013
0.014
-------
TRIBUTARY FLOW INFCRH&TION F03 UTAH
10/18/76
LAKE CODE 49?2
STEINAKER RES.
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR
4922CI
4922D1
4922E 1
4922ZZ
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
74
74
75
75
75
75
75
75
75
75
75
75
74
74
75
75
75
75
75
75
75
75
75
75
74
74
75
75
75
75
75
75
75
75
75
75
74
74
75
75
75
75
75
75
75
75
75
75
MEAN FLO* DAY
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.057
0.057
0.028
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.040
0.011
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.040
0.011
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.042
0.014
0.0
0.0
0.0
9
12
12
8
8
6
5
7
14
16
9
15
12
8
8
6
5
7
14
16
9
15
12
8
8
6
5
7
14
16
FLOW DAY
FLOW DAY
FLOW
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.006
0.085
0.028
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
16
22
18
22
18
22
0.0
0.057
0.0
0.0
0.0
0.0
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STCSET RETRIEVAL DAVE 76/S8/12
492201
4§ 31 38.0 109 31 33,0 3
STEINAKER RESERVOIR
49C47 UTAH
110691
DATE
FROM
TO
75/05/13
75/08/07
75/09/22
DATE
FROM
TO
75/05/13
75/08/07
75/09/22
TIME DEPTH
OF
DAY FEET
14 20 0000
14 ?0 0005
14 20 0020
14 20 0040
11 40 0000
11 40 0005
11 40 0016
16 10 0000
16 10 0005
16 10 0020
16 10 0034
TIME DEPTH
OF
DAY FEET
14 20 0000
14 20 0005
14 20 0020
14 20 0040
11 40 0000
11 40 0005
11 40 0016
16 10 0000
16 10 0005
16 10 0020
16 10 0034
00010
WATER
TEMP
CENT
10.4
10.3
9.3
7.7
22.9
22.2
19. t
18.9
18.7
18. 5
00665
PHOS-TOT
MG/L P
0.017
0.012
C.012
0.014
0.012
0.021
0.010
0.010
0.011
0.008
0.008
D0300
00
MG/L
9.0
9.2
9.7
9.6
7.6
7.6
7.1
7.1
6.8
7.0
7.0
32217
CHLRPHYL
A
UG/L
1.6
1.8
1.7
00077 30094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICROMHO
228 245
247
245
235
144 270
267
180 221
216
215
213
00031
INCOT LT
REMNING
PERCENT
11EPALES 2111202
0044 FEET DEPTH CLASS 00
00400 0041C 00610 00625
PH
SU
8
8
8
8
8
8
8
8
8
8
8
.60
.55
.50
.50
.70
.75
.70
.60
.40
.40
.40
T ALK
CAC03
MG/L
118
118
116
118
88
87
89
102
99
100
99
NH3-N
TOTAL
MG/L
0.030
0.020
0.020K
0.020
0.020
0.140
0.030
0.020K
0.020K
0.020K
0.020K
TOT KJEL
N
MG/L
0.300
0.200K
0.200K
0.200K
0.200
0.200K
0.200K
0.200
0.200
0.200
0.200K
—
CC630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
00671
PHOS-DIS
ORTHO
MG/L P
0.012
0.012
0.011
0.010
0.003
0.006
0.004
0.002K
0.002K
0.002K
0.002K
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! iJZTRiEVAL DATE 76/08/13
492203
46 33 27eO 109 31 52.0 3
5TEIMAKE« RESERVOIR
49047 UTAH
110691
11EPALES
2111202
OS75 FEET DEPTH CLASS
DATE
FROM
TO
75/05/13
75/08/07
75/09/23
DATE
FROM
TO
75/05/13
75/08/07
75/09/23
TIME DEPTH
OF
DAY FEET
14 45 0000
14 45 0005
14 45 0023
14 45 0048
14 45 0071
11 15 0000
11 15 0005
11 15 0015
11 15 0030
11 15 0050
11 15 0091
16 25 0000
16 25 0005
16 25 0020
16 25 0050
16 25 0086
TIME DEPTH
OF
DAY FEET
14 45 0000
14 45 0005
14 45 0023
14 45 0048
14 45 0071
11 15 0000
11 15 0005
11 15 0015
11 15 0030
11 15 0050
11 15 0091
16 ?5 0000
16 25 0005
16 25 0020
16 25 0050
16 25 0086
00010
WATER
TEMP
CENT
10.2
10.0
8.9
7.4
7.3
21.5
22. a
21.4
12.1
10.0
8.0
18.9
18.7
18.6
14.6
12.8
00665
PHOS-TOT
MG/L P
0.011
0.016
0.012
0.016
0.012
0.010
0.010
0.010
0.031
0.015
0.022
0.008
0.009
0.010
0.017
0.033
00300
DO
MG/L
9.
9.
9.
8.
8.
7.
7.
6.
4.
4.
7.
7.
7.
7.
2.
32217
00077
TRAIMSP
SECCHI
INCHES
2 228
6
8
d
8
8 168
2
6
4
8
4
1 180
2
0
4
00031
00094
CNDUCTVY
FIELD
MICrtOMHO
240
245
238
230
230
272
259
256
210
219
244
221
212
209
189
207
00400
PH
SU
8.50
8.50
6.50
8.35
8.40
8.70
8.70
8.65
8.00
7.90
8.20
8.40
8.40
8.30
7.80
7.60
00410
T ALK
CAC03
MG/L
116
114
114
115
115
86
86
86
91
94
104
99
99
99
104
113
00610
NH3-K"
TOTAL
MG/L
0.020
0.020
0.020K
0.020
0.020
0.050
0.050
0.050
0.060
0.050
0.150
0.020K
0.020K
0.020K
0.020K
0.020K
00
00625
TOT KJEL
N
MG/L
0.300
0.300
0.200
0.200K
0.200K
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200K
0.200
0.200K
0.200K
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.060
0.090
0.140
0.020K
0.020K
0.020K
0.070
0.190
00671
PHOS-DIS
ORTHO
MG/L P
0.011
0.011
0.010
0.011
0.011
0.002
0.002
0.004
0.006
0.014
0.015
0.002K
0.002K
0.002
0.008
0.028
CHLRPHYL INCDT LT
A
UG/L
1.
2.
1.
REMNING
PERCENT
9
3
6
K VALUE KNOriN TO 6E
LESS THAN INDICATED
-------
STORE! RKTRIKVAL DATE 76/08/i2
DATE
FROM
TO
75/C5/13
75/08/07
75/09/23
DATE
FROM
TO
75/05/13
75/08/07
75/09/23
TIKE DEPTH
OF
DAY FEET
15 10 0000
15 10 6005
15 10 0012
10 59 0000
10 50 0005
10 50 0014
16 50 0000
16 50 0005
16 50 0019
TIME DEPTH
OF
DAY FEET
15 10 0000
15 10 0005
15 10 0012
10 50 0000
10 50 0005
10 50 0014
16 50 0000
16 50 0005
16 50 0019
00010
WATER
TEMP
CENT
11.4
10.9
10.0
21,0
20.7
20.8
19.7
18.9
I8o6
00665
PHOS-TOT
MG/L P
0.011
0.010
0.014
0.014
0.010
0.010
0.009
0.009
0.012
00300
DO
MG/L
9,2
9.6
10oO
7.2
7.6
7.5
7.2
7.2
7o6
32217
CHLRPHYL
A
UG/L
1.7
2.2
1.8
00077
TRANSP
SECCHI
INCHES
132
206
00031
INCDT LT
REMNING
PERCENT
00094
CNDUCTVY
FIELD
MICROMHO
254
249
247
270
270
266
221
216
214
452203
4® 30 22e© H@9 32 4
STEINAKER RESERVOIR
49047 UTAH
1IEPALES
9@I6 FEET
2U1202
DEPTH CLASS CO
PH
SU
8.50
8.50
8.55
9.20
8.70
8.70
8.40
8.40
8.40
T ALK
CAC03
MG/L
117
114
116
91
89
87
101
99
i@0
NH3-N
TOTAL
MG/L
0.020
0.020K
0.020
6.040
0.040
0.090
0.020K
0.020K
0.020K
60625
TOT KJEL
N
0.400
0»300
0.260
0.200K
0.200
0.200
0.200
0.200
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
00671
PHOS-DIS
CRT MO
MG/L P
0.011
0*011
0.011
0.004
0.004
0.005
0.002
0.002K
0.003
-------
APPENDIX E
TRIBUTARY DATA
-------
STORE! RETRIEVAL DATE 76/08/12
00630
DATE TIME DEPTH N02S.N03
FROM OF N-TOTAL
TO DAY FEET MG/L
75/06/22 09 00
75/09/20 13 30
0.040
0.085
4922A1
40 30 18.0 109 32 00.0 4
STEINAKER SERVICE CANAL
49 7.5 STEINAKER RS
0/STEINAKER RESERVOIR 110691
BNK .1 MI SW OF DAM
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00625
TOT KJEL
N
MG/L
00610
NH3-N
TOTAL
MG/L
00671
PHOS-DIS
ORTHO
MG/L P
00665
PHOS-TOT
MG/L P
0.350
1.100
0.040
0.130
0.005K
0.010
0.020
0.020
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
SfTRIEVAL DATE 76/06/12
492281
40 29 34.0 109 35 04.0 4
STEINAKER FEEDER CANAL
49 7.5 VERNAL
T/STEINAKER RESERVOIR 110691
PARSHALL FLUME .4 MI W OF TAYLOR MT RD
11EPALES 2111204
0000 FEET DEPTH CLASS 00
3*n
«*0»
TO
74/H/ia
74/12/15
75/01/12
75/32/»S
75/03/96
75/OWI6
75/95/12
75/36/07
75/36/22
TIME DEPTH
OF
DAY FEET
15 55
14 66
09 45
12 10
14 00
07 30
17 50
14 00
07 30
00630
N02&N03
N-TOTAL
MG/L
0.368
0.096
0.16s
0.112
0.125
0.060
0.015
0.050
0.050
00625
TOT KJEL
N
MG/L
0.300
0.800
0.500
0.400
0.200
0.600
0.350
0.750
0.300
00610
NH3-N
TOTAL
MG/L
0.020
0.020
0.015
0.016
0.011
0.017
0.070
0.025
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.005K
0.005K
0.008K
0.005
0.005K
0.005K
0.010
0.010
00665
PHOS-TOT
MG/L P
0.010K
0.010K
0.010
0.010K
0.010K
0.010K
0.010K
0.030
* /iLOE KNOWN TO BE
_=:ss THAN IMDICATED
-------
STORET RETRIEVAL DATE 76/03/12
4922C1
40 30 08.0 109 34 37.0 4
STEINAKER DITCH
49 7.5 STEINAKER RS
T/STEINAKER RESERVOIR 110691
SEC RD BRDG .5 HI S OF ASHLEY SUBSTATION
HEP ALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
75/06/07
75/06/22
75/07/14
75/08/16
75/09/20
TIME DEPTH
OF
DAY FEET
14 20
07 45
09 00
19 00
13 30
00630
N02&N03
N-TOTAL
MG/L
0.045
0.035
0.020
0.010
0.005
00625
TOT KJEL
N
MG/L
0.600
0.250
0.350
0.100
0.300
00610
NH3-N
TOTAL
MG/L
0.020
0.015
0.005K
0.015
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.020
0.010
0.030
0.005
0.005K
00665
PHOS-TOT
MG/L P
0.030
0.030
0.010K
0.010K
K VALOE KNOWN TO BE
LESS THAN INDICATED
------- |