U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
HUGH BUTLER RESERVOIR
FRONTIER AND RED WILJLDW COUNTIES
NEBRASM
EPA REGION VII
WORKING PAPER No, 557
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
-------
REPORT
ON
HUGH BUTLER RESERVOIR
FRONTIER AND RED WILLOW COUNTIES
NEBRASM
EPA REGION VII
WORKING PAPER No, 557
WITH THE COOPERATION OF THE
NEBRASKA DEPARTMENT OF ENVIRONMENTAL CONTROL
AND THE
NEBRASKA NATIONAL GUARD
AUGUST, 1976
-------
CONTENTS
Page
Foreword ii
List of Nebraska Study 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
-------
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)L clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
m
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
freshwater 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.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Nebraska Department of
Environmental Control for professional involvement, to the
Nebraska National Guard for conducting the tributary sampling
phase of the Survey, and to those wastewater treatment plant
operators who voluntarily provided effluent samples and flow
data.
The staff of the Water Pollution Control Division, Department
of Environmental Control, provided invaluable 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 Francis L. Winner, the Adjutant General of Nebraska,
and Project Officer Colonel Burl M. Johnson, who directed the volun-
teer efforts of the Nebraska National Guardsmen, are also gratefully
acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STATE OF NEBRASKA
RESERVOIR NAME COUNTY
Branched Oak Lancaster
Marian County Harlan
Harry D. Strunk Frontier
Hugh Butler Frontier, Red Willow
Johnson Dawson, Gosper
McConaughy Keith
Pawnee Lancaster
Sherman Sherman
Swanson Hitchcock
-------
-4foor
Neb.
•
Map Location
HUGH BUTLER RESERVOIR
® Tributary Sampling Site
X Lake Sampling Site
^Drainage Area Boundary
_L
JpKm,
Scale
ions'
101 'oo'
ioo'«s
-------
HUGH BUTLER RESERVOIR
STORE! NO. 3104
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate Hugh Butler Reservoir is eutrophic. It
ranked sixth in overall trophic quality when the nine Nebraska
reservoirs sampled in 1974 were compared using a combination of six
parameters*. Three of the reservoirs had less median total phos-
phorus, four had less median dissolved orthophosphorus, one had less
and two had the same median inorganic nitrogen, five had less mean
chlorophyll a_, and five had greater mean Secchi disc transparency.
Marked depression of dissolved oxygen with depth occurred at sam-
pling station 1 in July.
Survey limnologists observed rooted aquatic plants near both
sampling stations in September.
B. Rate-Limiting Nutrient:
Because of nutrient changes in the samples, the algal assay
results are not considered representative of conditions in the
reservoir at the times the samples were collected (04/16/74 and
09/27/74).
The reservoir data indicate nitrogen limitation in April and
September.
C. Nutrient Controllability:
1. Point sources—No known municipal or industrial point
* See Appendix A.
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2
sources impacted Hugh Butler Reservoir during the sampling year.
Septic tanks serving shoreline dwellings and campgrounds were
estimated to have contributed 0.1% of=the total phosphorus load
to the reservoir, but a shoreline survey would be needed to
determine the significance of these sources.
The present phosphorus loading of 1.61 g/m2/yr is over three
times that proposed by Vollenweider (Vollenweider and Dillon, 1974)
as a eutrophic loading (see page 11).
2. Non-point sources--Non-point phosphorus contributions
accounted for essentially all of the inputs to the reservoir
during the sampling year. Red Willow Creek contributed 61.5%
of the total, and the ungaged drainage area contributed an esti-
mated 37.3%. Apparently, any significant reduction in the phos-
phorus loading to the reservoir is dependent on improved land-use
practices in the drainage.
The phosphorus export rate of Red Willow Creek was 13 kg/km2
during the sampling year (see page 10). This rate is about one-
half that of Medicine Creek, a tributary of nearby Harry D. Strunk
Reservoir*, but is about six times the rate of the Republican River
at the inlet of Swanson Reservoir**.
* Working Paper No. 556.
** Working Paper No. 562.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 6.59 kilometers2.
2. Mean depth: 5.9 meters.
3. Maximum depth: 17.4 meters.
4. Volume: 38.881 x 106 m3.
5. Mean hydraulic retention time: 1.2 years (based on outflow)
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Red Willow Creek 518.0 0.84
Spring Creek 98.4 0.16
Minor tributaries &
immediate drainage - 205.8 0.35
Totals 822.2 1.35
2. Outlet -
Irrigation withdrawal 0.0 0.50**
Red Willow Creek 828.8 0.56
Total 828.8*** 1.06
C. Precipitation****:
1. Year of sampling: 47.6 centimeters.
2. Mean annual: 52.8 centimeters.
t Table of metric conversions—Appendix B.
tt Hartung, 1974; Adamovich, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Alridge, 1976.
*** Includes area of reservoir.
**** See Working Paper No. 175.
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4
III. LAKE WATER QUALITY SUMMARY
Hugh Butler Reservoir was sampled three times during the open-
water season of 1974 by means of a pontoon-equipped Huey helicopter.
Samples for physical and chemical parameters were collected from
a number of depths at two stations on the reservoir in April and
three stations in July and September (see map, page v). During
each visit, a single depth-integrated (4.6 m or near bottom to surface)
sample was composited from the stations for phytoplankton identifi-
cation and enumeration; and during the first and third 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 a_ analysis. The maximum
depths sampled were 12.2 meters at station 1, 7.6 meters at station
2, and 7.6 meters at station 3.
The sampling results are presented in full in Appendix D and
are summarized in the following table (the July nutrient samples
were not preserved properly and were not analyzed).
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A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTERISTICS FOR HUGH BUTLER (RED WILLOM)
STORET CODE 310*
PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/LI
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)
CHLKPYL A (UG/L)
SECCHI (METERS)
1ST SAMPLING ( 4/16/74)
2 SITES
2ND SAMPLING ( 7/ 1/7*)
3 SITES
3RD SAMPLING I 9/27/74)
3 SITES
RANGE MEAN MEDIAN
8.1 - 8.5 6.3 8.2
9.2 - 10. 4 10.1 10.3
155. - 325. 252. 271.
8.<» - 8.5 8.4 8.4
214. - 240. 229. 232.
0.004 - 0.009 0.007 0.007
0.300 * 1.200 0.712 0.700
20.8 - 38.5 29.6 29.6
0.5 - 0.9 0.7 0.7
RANGE MEAN MEDIAN RANGE MEAN MEDIAN
17.0 - 2S.5 22.3 23. 0 16.4 - 17.0 16.8 16.8
0.6 -. 8.2 5.9 7.2 7.2 - 8.6 7.8 7.8
485. - 578. 528. 525. 234. - 392. 272. 237.
7.9 - 8.5 8.3 8.4 8.1 - 8.3 8.2 8.2
2.3-10.6 5.2 3.6 7. 8 - 25.3 19.4 25.0
0.4 - 1.7 1.2 1.5 0.4 - 0.5 0.4 0.5
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
04/16/74
07/01/74
09/27/74
2. Chlorophyll a_ -
Sampling
Date
04/16/74
07/01/74
09/27/74
Dominant Algal Units
Genera per ml
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Asterionella sp_.
Centric diatoms
Flagellates
Ankistrodesmus sp.
Dactylococcopsis SJD.
Other genera
Total
Ankistrodesmus sp.
Cryptomonas sp.
Carter i a sp.
Dactylococcopsis s_p_.
Flagellates
Other genera
Total
Centric diatoms
Flagellates
Cryptomonas sp.
Stephanodiscus sp.
Oocystis sp.
Other genera
14,842
7,574
4,031
2,871
428
1,160
30,906
805
805
725
322
322
1,690
4,669
1,280
411
228
183
137
548
Total 2,787
Station
Number
1
2
3
1
2
3
1
2
3
Chlorophyll a_
(ug/D
20.8
38.5
10.6
2.3
2.6
25.0
7.8
25.3
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7
C. Limiting Nutrient Study:
Because of significant changes in nutrient concentrations
in the assay samples between the times of collection and the
beginning of the assays, the results are not representative of
conditions in the reservoir at the times the samples were taken
(04/16/74 and 09/27/74).
The reservoir data indicate nitrogen was limiting at sta-
tions 1 and 2 in April and at all three stations in September;
i.e., the mean inorganic nitrogen/orthophosphorus ratios were
10/1 or less, and nitrogen limitation would be expected.
-------
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Nebraska National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page v). Sampling was begun
in August, 1974, and was completed in July, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Nebraska District Office of the U.S. Geological Survey for the
tributary sites nearest the reservoir.
In this report, nutrient loads at station A-2 were calculated
using mean annual concentrations and mean annual flows. Nutrient
loads at station A-l were calculated by adding the flow measured
at station A-l of Red Willow Creek to the amount of water withdrawn
for irrigation, in m3/sec, and multiplying the sum by the mean
nutrient concentrations at A-l.
Spring Creek was not sampled during the Survey year because of
lack of flow. The normalized flow of this stream was added to the
normalized "ZZ" flow to estimate loads.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("ZZ" of U.S.G.S.) were estimated using the mean nutrient
concentrations in Red Willow Creek at station A-2 and the mean ZZ
flow (plus Spring Creek flow) in m3/sec.
No known municipal or industrial point sources impacted Hugh Butler
Reservoir during the sampling year.
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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 yr total
a. Tributaries (non-point load) -
Red Willow Creek 6,515 61.5
b. Minor tributaries & immediate
drainage (non-point load) - 3,955 37.3
c. Known municipal STP's - None
d. Septic tanks* - 10 0.1
e. Known industrial - None
f. Direct precipitation** - 11j 1.1
Total 10,595 100.0
2. Outputs -
Lake outlet - Red Willow Creek , , Q>,n
Irrigation with- ' I>3HU
drawal
3. Net annual P accumulation - 8,655 kg.
* Estimate based on 12 shoreline dwellings and 3 campgrounds; see Working
Paper No. 175.
** See Working Paper No. 175.
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10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yjr total
a. Tributaries (non-point load) -
Red Willow Creek 50,360 57.0
b. Minor tributaries & immediate
drainage (non-point load) - 30,575 34.6
c. Known municipal STP's - None
d. Septic tanks* - 340 0.4
e. Known industrial - None
f. Direct precipitation** - 7,115 8.0
Total 88,390 100.0
2. Outputs -
Lake outlet - Red Willow Creek
trrigat
drawal
3. Net annual N accumulation - 39,685 kg.
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Red Willow Creek 13 97
* Estimate based on 12 shoreline dwellings and 3 campgrounds; see Working
Paper No. 175.
** See Working Paper No. 175.
Irrigation with- } 48>705
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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 Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/mVyr 1.61 1.31 13.4 6.0
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Hugh Butler Reservoir:
"Dangerous" (eutrophic loading) 0.44
"Permissible" (oligotrophic loading) 0.22
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12
V. LITERATURE REVIEWED
Adamovich, Ted, 1975. Personal communication (reservoir mor-
phometry). NE Dept. of Environ. Contr., Lincoln.
Alridge, Ray, 1976. Personal communication (estimate of evaporation
loss and irrigation withdrawal from Hugh Butler Reservoir).
Bureau of Reclamation, McCook.
Hartung, Ray, 1974. Personal communication (reservoir mor-
phometry). NE Dept. of Environ. Contr., Lincoln.
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.
-------
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
3101 BRANCHED OAK
3102 MARLAN COUNTY RESERVOIR
3103 HARRY 0. STRUNK (ME01C1N
3104 HUGH BUTLER (RED WILLOW)
3105 JOHNSON RESERVOIR
3106 LAKE MCCONAUGHY
3107 PAWNEE LAKE
3108 SHERMAN COUNTY RESERVOIR
3iio SWANSON RESERVOIR
MEDIAN
TOTAL P
0.044
0.112
0.064
0.061
0.075
0.027
0.060
0.067
0.067
MEDIAN
INORG N
0.070
0.365
0.460
0.090
0.340
0.585
0.175
0.090
0.090
500-
MEAN SEC
456.444
476.111
470.500
468. d7S
477.667
40V. 555
453.000
451.167
466. J33
MEAN
CHLORA
17.033
27.822
14.367
16.61?
26.133
8.644
15.367
6.717
14.450
15-
MIN DO
9.400
12.200
14.200
14.400
8.600
11.400
8.800
11.800
11.000
MEDIAN
DISS ORThO t>
0.013
0.061
0.009
O.OU
O.OOv
0.004
0.020
0.050
0.016
-------
PERCENT OF LAKES KITH HIGHER VALUES (NUMBER OF LAKES KITH HIGHER VALUES)
LA«E
CODt LAKE NAME
3101 BRANCHED OAK
3102 HARLAN COUNTY RESERVOIK
3103 HARRY 0. STRUNK (MEDICIN
3104 HUGH BUTLER (RED WILLOO
3105 JOHNSON RESERVOIR
3106 LAKt MCCONAUGHY
3107 PAWNEE LAKE
3108 SHERMAN COUNTY RESERVOIR
3110 SKANSON RESERVOIR
MEDIAN
TOTAL P
86 <
0 (
50 (
63 (
13 (
100 (
75 (
38 (
25 (
7)
0)
4)
5)
1)
8)
6)
3)
2)
MEDIAN
INO*G
100 (
25 (
13 (
75 (
38 (
0 (
50 (
75 (
75 (
N
8)
2)
1)
5>
3)
0)
4)
5)
5)
500-
MEAN SEC
63 (
13 (
25 (
38 (
0 (
100 (
75 (
88 (
50 (
5)
1)
2)
3)
0)
8)
6)
7)
4)
MEAN
CHLORA
25 (
0 <
75 (
38 (
13 (
88 (
50 (
100 (
63 (
2)
0)
6)
3)
1)
7)
4)
8)
5)
15-
MIN DO
75 (
25 (
13 (
0 (
100 (
50 (
88 (
38 (
63 (
6)
2)
1)
0)
8)
4)
7)
3)
5)
MEUIAN
DISS OKTrlO P
63 (
0 (
81 (
50 (
81 (
100 (
25 (
13 (
38 (
5)
0)
6)
4)
6)
8)
2)
1)
3)
INiJEX
NO
<*14
63
257
264
245
4J8
363
352
314
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LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 3106 LAKE MCCONAUGHY 438
^ 3101 BRANCHED OAK 414
3 3107 PAWNEE LAKE 363
4 3ioa SHERMAN COUNTY RESERVOIR 352
5 3110 SWANSON RESERVOIR 314
6 3104 HUGH SUTLER (RED WILLOW) 264
7 3103 HARRY D. STHUNK (MEDICIN 257
8 3105 JOHNSON RESERVOIR 245
9 3102 HARLAN COUNTY RESERVOIR 63
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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 FLOW INFORMATION FOR NEBRASKA
LAKE CODE 3104 HUGH BUTLER LAKE
12/23/75
TOTAL DRAINAGE AREA OF LAKE (SO KM)
TRIBUTARY
3KKA1
3104A2
3104B1
3I04ZZ
SUB-DRAINAGE
AREA (SO KM) JAN
828.8
518.0
98.4
212.4
0.17
0.68
0.13
0.28
FEB
0.22
0.91
0.17
0.37
802.
MAR
0.21
1.08
0.20
0.44
9
APR
0.28
0.99
0.19
0.41
MAY
0.48
0.99
0.19
0.41
NORMALIZED FLOWS (CMS)
JUN JUL AUG
0.96
1.22
0.23
0.50
1.78
0.85
0.16
0.35
1.61
0.57
0.11
0.23
SEP
0.42
0.71
0.14
0.29
OCT
0.24
0.65
0.12
0.27
NOV
0.11
0.79
0.15
0.33
DEC
0.13
0.71
0.14
0.29
MEAN
0.56
0.84
0.16
0.35
SUMMARY
TOTAL DRAINAGE AREA OF LAKE
SUM OF SUB-DRAINAGE AREAS
802.9
828.8
TOTAL FLOW IN
TOTAL FLOW OUT
16.22
6.63
NOTE *•• TOTAL & zz DR. AREAS DIRECTLY CONTRIBUTING. 730 so. MI. TOTAL AREA.
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY
3104A1
310<*A2
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
74
74
74
74
74
75
75
75
75
75
75
75
74
74
74
74
74
75
75
75
75
75
75
75
1.93
0.40
0.13
0.13
0.11
0.12
0.13
0.13
0.12
0.41
O.S1
2.80
0.35
0.39
0.53
0.71
0.60
0.7S
0.64
1.09
1.03
0.77
1.68
1.04
25
8
6
16
7
5
8
22
19
4
7
25
8
6
16
7
5
8
22
19
4
7
FLOW
2.66
0.59
0.13
0.13
0.11
0.11
0.13
0.13
0.15
0.13
0.10
0.31
0.40
0.45
0.71
0.59
0.57
0.65
1.10
1.02
0.71
0.62
-------
TRIBUTARY FLOW INFORMATION FOR NEBRASKA
12/23/75
LAKE CODE 3104
HUGH BUTLER LAKE
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY
310<*B1
3104ZZ
MONTH YEAR
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
74
74
74
74
74
75
75
75
75
75
75
75
74
74
74
74
74
75
75
75
75
75
75
75
MEAN FLOW DAY
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0*0
0.0
0.0
0.14
0.16
0.22
0.29
0.25
0.31
0.26
0.44
0.42
0.32
0.69
0.42
25
8
6
16
7
5
8
22
19
4
7
25
8
6
16
7
5
8
22
19
4
7
FLOW DAY
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.13
0.16
0.19
0.29
0.24
0.23
0.27
0.45
0.42
0.29
0.25
FLOW DAY
FLOW
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORE! RETRIEVAL DATE 75/13/23
310401
40 21 23.0 100 40 13.0
HUGH BUTLER (RED WILLOW)
31 NEBRASKA
DATE
FROM
TO
74/04/16
74/07/01
74/09/27
TIME DEPTH
OF
DAY FEET
10 00 0000
10 00 0005
10 00 0015
10 00 0040
14 45 0000
14 45 0005
14 45 0015
14 45 0020
14 45 0030
14 45 0040
14 25 0000
14 25 0005
14 25 0015
14 25 0025
14 25 0036
00010
WATER
TEMP
CENT
8.4
8.2
8.1
8.1
23.0
22.9
21.4
20.0
17.8
17.0
16.9
16.8
16.8
16.8
16.8
11EPALES
00300
00
MG/L
10.4
10.2
10.4
7.2
7.0
4.8
1.8
0.6
3.0
7.4
7.4
7.2
7.6
7.4
00077
TRANSP
SECCHI
INCHES
36
60
19
00094
CNDUCTVY
FIELD
MICROMHO
299
171
255
302
535
525
578
SOB
493
485
237
235
236
236
236
3
00400
PH
SU
8.50
8.45
8.45
8.40
8.40
8.40
6.20
8.00
7.90
7.90
8.21
8.22
8.21
8.22
8.22
00410
T ALK
CAC03
MG/L
240
238
238
236
242
266
236
268
254
2111202
0047
00610
NH3-N
TOTAL
MG/L
0.030
0.020
0.020
0.020
0.070
0.060
0.040
0.050
0.050
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.600
0.400
0.300
0.400
0.600
0.600
0.600
0.600
0.600
00630
N02&N03
N-TOTAL
MG/L
0.040
0.030
0.030
0.020
0.140
0.140
0.140
0.140
0.140
00671
PHOS-OIS
ORTHO
MG/L P
0.009
0.005
0.004
0.005
0.024
0.016
0.027
0.017
0.016
DATE
FROM
TO
74/04/16
74/07/01
74/09/27
00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET MG/L P UG/L PERCENT
10
10
10
10
14
14
14
14
14
14
14
00
00
00
00
45
25
25
25
25
25
25
0000
0005
0015
0040
0000
0000
0002
0005
0015
0025
0036
0.032 20.8
0.025
0.030
0.056
10.6
0.059 25.0
1.0
0.064
0.059
0.064
0.061
-------
STORET RETRIEVAL DATE 75/12/23
310403
40 22 18.0 100 43 19.0
HUGH BUTLER (RED WILLOW)
31 NEBRASKA
11EPALES
DATE
FROM
TO
74/04/16
74/07/01
74/09/27
DATE
FROM
TO
74/04/16
74/07/01
74/09/27
TIME DEPTH
OF
DAY FEET
13 55 0000
13 55 0005
13 55 0015
13 55 0025
15 20 0000
15 20 0005
15 20 0010
15 00 0000
15 00 0005
15 00 0010
15 00 0016
TIME DEPTH
OF
DAY FEET
13 55 0000
13 55 0005
13 55 0015
13 55 0025
15 20 0000
15 00 0000
15 00 0005
15 00 0010
15 00 0016
00010
WATER
TEMP
CENT
8.5
8.4
8.3
8.1
25.5
25.5
25.4
16.4
16.4
16.4
16.4
00665
PHOS-TOT
MG/L P
0.054
0.059
0.069
0.264
0.078
0.088
0.083
0.094
00300
DO
MG/L
10.4
9.8
9.2
7.6
7.8
8.0
8.2
8.0
8.2
8.4
32217
CHLRPHYL
A
UG/L
38.5
2.3
7.8
00077
TRANSP
SECCHI
INCHES
20
17
14
00031
INCDT LT
REMNING
PERCENT
00094
CNDUCTVY
FIELD
MICROMHO
155
219
287
325
553
552
550
241
392
235
234
3
00400
PH
SU
8.40
8.40
8.40
8.40
8.50
8.50
8.50
8.33
8.35
8.33
8.35
00410
T ALK
CAC03
MG/L
218
214
228
222
246
240
254
234
2111202
0030
00610
NH3-N
TOTAL
MG/L
0.030
0.020
0.030
0.030
0.040
0.040
0.040
O.»40
FEET DEPTH
00625
TOT KJEL
N
MG/L
1.200
0.800
0.900
1.100
0.800
0.700
0.700
0.700
00630
N02&N03
N-TOTAL
MG/L
0.030
0.030
0.040
0.040
0.060
0.050
0.050
0.050
00671
PHOS-DIS
ORTHO
MG/L P
0.008
0.007
0.007
0.008
0.008
0.024
0.027
0.025
-------
STORET RETRIEVAL DATE 75/12/23
310403
40 22 09.0 100 40 26.0
HUGH BUTLER (RED WILLOW)
31 NEBRASKA
DATE
FROM
TO
74/07/01
74/09/27
DATE
FROM
TO
74/07/01
74/09/27
TIME
OF
DAY
15
15
15
15
14
14
14
14
50
50
50
50
00
00
00
00
TIME
OF
DAY
15
14
14
14
14
14
50
00
00
00
00
00
DEPTH
FEET
0000
0005
0015
0025
0000
0005
0015
0025
DEPTH
FEET
0000
0000
0003
0005
0015
0025
00010
WATER
TEMP
CENT
23.6
23.6
23.5
21.1
17.0
17.0
17.0
16.9
00665
PHOS-TOT
MG/L P
0.002
0.056
0.066
0.065
00300
DO
MG/L
8.
8.
8.
4.
8.
7.
7.
7.
32217
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
2
0
2
a
6
8
6
8
CHLRPHYL
A
UG/L
2.
25.
6
3
65
18
00031
INCDT LT
REMNING
PERCENT
1.0
527
524
521
510
389
375
249
243
11EPALES 2111202
3 0029 FEET
00400 00410 00610 00
PH T ALK NH3-N TOT 1
CAC03 TOTAL N
SU
8.
8.
8.
8.
8.
8.
8.
8.
50
50
40
20
07
17
15
11
MG/L MG/L MG,
278 0.040 0
264 0.040 1
266 0.040 0
282 0.030 0
DEPTH
0.600
1.200
600
600
00630
N02&N03
N-TOTAL
MG/L
0.120
0.120
0.130
0.130
00671
PHOS-DIS
ORTHO
MG/L P
0.012
0.014
0.027
0.019
-------
APPENDIX E
TRIBUTARY DATA
-------
STORET RETRIEVAL DATE 76/01/27
3104A1
40 20 50.0 100 38 35.0
RED WILLOW CREEK
31063 7.5 RO WILLOW DM
0/HUGH BUTLER LAKE
BRDG ON US RT 83 2.8 M SE Of RED WIL DAM
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
74/08/25
74/09/08
74/10/06
74/11/16
74/12/07
75/01/05
75/02/08
75/03/22
75/04/19
75/05/04
75/06/07
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
08
08
08
08
08
08
08
08
08
09
08
55
S5
55
55
55
55
55
55
55
55
55
MG/L
0
0
0
0
0
0
0
0
0
0
.048
.288
.600
.800
.750
.800
.795
.655
.480
.480
0.630
MG/L
0.500
0.500
0.900
1.000
0.400
3.400
0.400
0.450
0.700
0.550
0.900
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
025
025
0.035
0.
0.
0.
0.
0.
0.
0.
0.
035
015
160
068
015
075
080
090
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
020
030
025
035
035
040
048
040
030
020
050
MG/L P
0
0
0
0
0
0
0
0
0
0
0
.065
.050
.025
.070
.050
.050
.060
.050
.050
.040
.130
-------
STORET RETRIEVAL DATE 76/01/27
3104A2
40 24 42.0 100 47 15.0
RED WILLOW CREEK
31 7.5 BURGER CAN E
T/HUGH BUTLER LAKE
BRDG ON SEC RO 4 M NE OF BEEBE LNOG STRP
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
74/08/25
74/09/08
74/10/06
74/11/16
74/12/07
75/01/05
75/02/08
75/03/22
75/04/19
75/05/04
75/06/07
TIME DEPTH
OF
DAY FEET
10 00
10 00
10 00
10 00
10 00
10 00
10 00
10 00
10 00
10 00
10 00
00630
N02&N03
N-TOTAL
MG/L
0.600
0.519
0.296
0.730
0.770
0.960
0.900
0.534
0.575
0.750
0.380
00625
TOT KJEL
N
MG/L
1.600
1.300
0.800
0.900
0.900
1.000
1.350
1.200
1.350
1.300
2.200
00610
NH3-N
TOTAL
MG/L
0.015
0.010
0.060
0.050
0.045
0.104
0.084
0.040
0.055
0.165
0.055
00671
PHOS-DIS
ORTHO
MG/L P
0.080
0.055
0.025
0.060
0.060
0.065
0*068
0.069
0.100
0.130
0.095
00665
PHOS-TOT
MG/L P
0.290
0.270
0.150
0.140
0.190
0.120
0.275
0.350
0.110
0.310
0.500
------- |