U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
SHERIDAN LAKE
REMINGTON COUNTY
SOUTH DAMOTA
EPA REGION VI11
WORKING PAPER No, 624
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORV ALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-.V (,.i>.i). 699-440
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REPORT
ON
SHERIDAN LAKE
REMINGTON COUNTY
SOUTH DAMQTA
EPA REGION VIII
WORKING PAPER No, 624
WITH THE COOPERATION OF THE
SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION
AND THE
SOUTH DAKOTA NATIONAL GUARD
JANUARY, 1977
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1
CONTENTS
Page
Foreward
List of South Dakota Study Lakes IV
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Sumary 4
IV. Nutrient Loadings 8
V. Literature Reviewed 12
‘11. Appendices 13
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration coniiiitment 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 [ 3O3(e)], water
quality criteria/standards review [ 3O3(c)], clean lakes [ 53l4(a,b)],
and water quality monitoring [ lO6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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111
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 qua1ity 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 South Dakota Departments of
Environmental Protection and Game, Fish and Parks for professional
involvement, to the South Dakota National Guard for conducting the
tributary sampling phase of the Survey, and to those wastewater
treatment plant operators who voluntarily provided effluent samples.
Allyn Lockner, Secretary, and Blame Barker and Duane Murphy,
Department of Environmental Quality; Douglas Hansen, Department
of Game, Fish and Parks; and James Hayden, Director, State Lakes
Preservation Comittee 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 Duane L. Corning, the Adjutant General of South
Dakota, and Project Officer Colonel Robert D. Chalberg, who directed
the volunteer efforts of the South Dakota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF SOUTH DAKOTA
LAKE NAME COUNTY
Albert Kingsbury
Alvin Lincoln
Angostura Fall River
Brant Lake
Byron Beadle
Clear Marshall
Clear Minnehaha
Cochrane Deuel
Cottonwood Spink
Deerfi el d Penni ngton
Enemy Swim Day
Herman Lake
John Hamlin
Kampeska Codington
Madison Lake
Mitchell Davidson
Norden Hami in
East Oakwood Brookings
West Oakwood Brookings
Pactola Pennington
Pickerel Day
Poinsett Brookings, Lake
Red Iron South Marshall
Richmond Brown
Roy Marshall
Sand Brown
Sheridan Pennington
Stockdale Custer
East Vermillion McCook
Wall Minnehaha
Waubay Day
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[ S. Dak.
‘ NJ
Map Location
\
.1
, ,0
I
/
SHERIDAN LAKE
J Tributary Sampling Site
)( Lake Sampling Site
J Drainage Area Boundary
o 1 2 3 4 SKJii.
I 1 I I I I
I I I I.
0 1 2 3 1 11.
Scale
4y50.—
1O3 3O’
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SHERIDAN LAKE
STORET NO. 4627
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Sheridan Lake is eutrophic. It
ranked ninth in overall trophic quality when the 31 South Dakota
lakes sampled in 1974 were compared using a combination of six
lake parameters*. Nine of the lakes had less median total phos-
phorus, ten had less median dissolved orthophosphorus, ten had
less and one had the same median inorganic nitrogen, nine had
less mean chlorophyll a, and two had greater mean Secchi disc
transparency. Marked depression of dissolved oxygen with depth
occurred in July and depletion occurred in September.
Survey limnologists observed submerged aquatic plants and
an algal bloom in progress in July.
B. Rate-Limiting Nutrient:
Due to significant changes in orthophosphorus in the samples
between the time of collection to the beginning of the algal
assays, the results are not representative of conditions in the
lake at the time the samples were taken.
The lake data indicate nitrogen limitation all three sampling
times.
* See Appendix A.
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2
C. Nutrient Controllability:
1. Point sources——No known municipal or industrial point
sources impacted Sheridan Lake during the samplinq year. Septic
tanks serving lakeshore recreational areas were estimated to have
contributed 1.7% of the total phosphorus load, but a shoreline
survey would have to be done to determine the significance of
those sources.
The present phosphorus loading of 0.19 g/m 2 /yr is a little
more than that proposed by Vollenweider (Vollenweider and Dil-
lon, 1974) as an oligotrophic loading (see page 11); however,
Survey data indicate that Sheridan Lake is eutrophic. This
can be explained by the fact that until recently, the town of
Hill City contributed an estimated 465 kg/yr of phosphorus to
Sheridan Lake (more than all the present sources combined). In
1973, Hill City eliminated all wastewater discharges by construct-
ing a holding pond system*. If the present phosphorus loading
rate is maintained, the trophic quality of Sheridan Lake should
improve.
2. Non-point sources--Non-point sources contributed 98.3%
of the total phosphorus load to Sheridan Lake during the sampling
year. Spring Creek accounted for 74.6%, and the unqaged tribu-
taries contributed an estimated 15.3%.
The phosphorus export rate of Sprin i Creek was quite low (see
page 10) and compates well with French Creek, a tributary of
nearby Stockade Lake**.
* Howard, 1976.
** Working Paper No. 625.
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3
II. LAKE AND DRAINAGE BASIN CHARACTERISTICSt
A. Lake Morphometrytt:
1. Surface area: 1.56 kilometers 2 .
2. Mean depth: 10.2 meters.
3. Maximum depth: 29.3 meters.
4. Volume: 15.912 x 106 rn 3 .
5. Mean hydraulic retention time: 3.6 years.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries —
Drainage Mean flow
Name area (km 2 )* ( m 3 /sec)*
Spring Creek 183.9 0.128
Minor tributaries &
immediate drainage - 45.0 0.012
Totals 228.9 0.140
2. Outlet -
Spring Creek 230.5** O.140**
C. Precipitation***:
1. Year of sampling: 43.82 centimeters.
2. Mean annual: 41.73 centimeters.
t Table of metric conversions--Appendix B.
tt Murphey, 1974.
* For limits of accuracy, see Working Paper No. 175, “...Survey Methods,
1973—1 976”.
** Includes area of lake; outflow adjusted to equal sum of inflows.
*** See Working Paper No. 175.
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4
III. LAKE WATER QUALITY SUMMARY
Sheridan L ke w s sftmpled three times during the open—water season
of 974 by means of a pontoon-equipped Iluey helicopter. Each time,
samples for physical and chemical parameters were collected from a
number of depths at two stations on the lake (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 April and September visits, a single
18.9-liter depth—integrated sampie was composited for algal assays.
Also each time, a depth-integrated sample was collected from each of
the statiçrns for chlorophyll a analysis. The maximum depths sampled
were 23.2 meters at station 1 a nd 13.1 meters at station 2.
The sampling results are presented in full in Appendix D and are
sunuTlarized in the following table.
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1ST SAMPLIhiG ( 4/25/74)
A. UMUA Y OF ‘r4YSICAL AND CHEMICAL CHAc CTE ISTICS FOk SsEMLDAN LAKE
STORET CQOE 4 21
2 5(TfS
2 SITES
2 SITES
2ND SAMPLING
7 /15 /74 )
3k1) SAMPLING (
9/12/74)
PARAMETER
RANGE MEAN MEDIAN
MEAN
P4EOIAN
RANGE
MEAN
MEDIAN
TEMP (C)
5.1
— 10.0 7.6 1.4
8.3
— 23.5
16.5
17.0
9.5
— 16.0
13.0
14.3
DISS (flY (MG/LI
8.0
— 10.4 9.4 9.4
o.e
— 9.8
5.3
6.2
0.0
— 8.4
3.2
1.2
CNDCTVY (MCROMO)
155.
— 178. 166. 166.
192.
- 242.
219.
225.
167.
— 185.
175.
175.
PH (STAND UNITS)
*0*0*
—****0 000*000****** 00 00
7.4
— 9.2
8.3
8.1
7.0
— 8.7
7.7
7.2
TOT ALK (HG/L)
99.
— 105. 103. 103.
98.
— 121.
108.
109.
84.
— 122.
104.
109.
TOT P (MG/LI
0.023
— 0.033 0.027 0,021
0.059
— 0.112
0.071
0.0Th
0.014
— 0.259
0.076
0.041
ORTHO P (MG/LI
0.003
— 0.008 0.006 0.005
0.040
— 0.085
0.054
0.052
0.004
— 0.084
0.031
0.0 l b
N02 .N03 (PIG/I)
0.030
— 0.060 0.04u 0.040
0.020
— 0.100
0.061
0.060
0.0 20
— 0.020
0.020
0.020
AMMON iA (MG/U
0.020
— 0.040 0.029 0.030
0.050
— 0.280
0.109
0.065
0.020
— 0.950
0.271
0.180
KJEL N (MG/LI
0.360
— 0. 800 0.511 0.500
0.300
— 0.500
0.410
0.400
0.400
— 1.200
0.738
0.700
INORG N (MG/U
0.050
— 0.100 0.0t9 0.0T )
0.090
— 0.330
0.170
0.130
0.040
— 0.970
0.291
0.200
TOTAL N (MG/I)
0.330
— 0.660 0.551 0.540
0.320
— 0.550
0.471
0.410
0.420
— 1.220
0.158
0.120
CHLRPYL A (UC e/L I
8.1
— 8.3 8.2 8.2
26.5
— 34.5
30.5
30.5
4.4
— 10.8
7.6
7.6
SECCHI (METERS)
2.6
— 2.7 2.7 2.7
2.7
— 3.2
3.0
3.0
2.4
— 2. ’ .
2.4
2.
U .
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6
R, Bio1og-i cc 1 characte.r St&cs:
1. P.hytop ankto i -
S arnpi ng Dominant Algal Units
Date Genera per ml
04/25/74 1. Fragila.ria 1,409
2.. , C ryptanonas p.. 1,118
3. I4esostigma p. 895
4. Chroomonas 626
5. flagellates 447
Other genera 1,298
Total 5,793
07/15/74 1. Fragilaria 2,250
2. Cryptomonas 310
3. Microcystis 310
4. Anabaena a• 116
5. Ankistrodesmus 78
Other genera 118
Total 3,182
09/12/74 1. Aphanizomenon 632
2. Aphanocapsa 446
3. Anabaena . 149
4. Cya ophytan filai’ ents 149
5. Fragilaria . a• 112
Other genera 297
Total 1 ,785
2. Chlorophyll a -
Sampling Station Chlorophyll a
Date Number ( pg/i )
04/25/74 1 8.1
2 8.3
07/15/74 1 26.5
2 34.5
09/12/74 1 4.4
2 10.8
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7
C. Limiting Nutrient Study:
Due to significant changes in orthophosphorus concentrations
in the samples between the times of sample collection and the
beginning of the assays, the results are not representative of
conditions In the lake at the times the samples were taken.
The lake data indicate nitrogen limitation at all three sam-
pling times. The mean inorganic nitrogen to orthophosphorus
ratios were 12 to I in April, 3 to 1 in July, and 9 to 1 in Sep-
tember, and nitrogen limitation would be expected.
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8
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the South Dakota
National Guard collected monthly near—surface grab samples from
each of the tributary sites indicated on the map (page v), except
for the high runoff month of May when two samples were collected.
Sampling was begun in October, 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 South Dakota District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads for unsampled
“minor tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were esti-
mated using the nutrient loads at station A—2, in kg/kzn 2 /year, and multi-
plying by the ZZ area in km 2 .
No known wastewater treatment plants impacted Sheridan Lake during
the sampling year.
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
* See Working Paper No. 175.
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9
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kgP/ %of
Source yr total
a. Tributaries (non-point load) -
Spring Creek 220 74.6
b. Minor tributaries & imediate
drainage (non-point load) - 45 15.3
c. Known municipal STP’s - None —
d. Septic tanks* — 5 1.7
e. Known industrial — None - -
f. Direct precipitation** - 25 8.4
Total 295 100.0
2. Outputs -
Lake outlet - Spring Creek 170
3. Net annual P accumulation — 125 kg.
* Estimate based on three campgrounds and a park; see 1 orking Paper No. 175.
** See Working Paper No. 175.
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10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs —
kgN/ %of
Source _____ total
a. Tributaries (non-point load) —
Spring Creek 2,715 51.0
b. Minor tributaries & immediate
drainage (non—point load) — 675 12.7
c. Known municipal STP’s - None - —
d. Septic tanks* — 245 4.6
e. Known industrial - None - -
f. Direct precipitation** — 1,685 31.7
Total 5,320 100.0
2. Outputs -
Lake outlet - Spring Creek 3,060
3. Net annual N accumulation — 2,260 kg.
0. Non—point Nutrient Export by Subdrainage Area:
Tributary kg P/km 2 jyr kg N/km 2 /yr
Spring Creek 1 15
E. Mean Nutrient Concentrations in (Jngaged Stream:
Mean Total P Mean Total N
Tributary Conc. (mg/i) Conc. (mg/lj
Horse Creek 0.023 0.802
* Estimate based on three campgrounds and a park; see Working Paper No. 175.
** 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 Voflenweider (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 niorphometry 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/m 2 /yr 0.19 008 3.4 1.4
Vollenweider phosphorus loadings
(g/m 2 /yr) based on mean depth and mean
hydraulic retention time of Sheridan Lake:
“Dangerous” (eutrophic loading) 0.32
“Permissible” (oligotrophic loading) 0.16
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12
V. LITERATURE REVIEWED
Howard, Richard, 1976. Personal conwiunication (wastewater treat-
ment at Hill City). SD Dept. of Env. Prot., Pierre.
Murphey, Duane G., 1974. Personal corruiiunication (waterbody infor-
mation and morphometry). SD Dept. of Env. Prot., Pierre.
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.
Schmidt, Artwin E. 1 1967. Limnology of selected South Dakota lakes.
MS thesis, SD St. U., Brookings.
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13
Vt. APPENDICES
APPENDIX A
LAKE RANKINGS
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LAKE DATA TO BE USEO IN RANKINGS
LAKE MEDIAN MEDIAN 500— MEAN 15— MEDIAN
CODE LAKE NAME TOTAL P INO G N MEAN SEC CHLORA MIN DO DISS ORTHO P
4601 LAKE ALBERT 0.321 0.170 489.111 106.289 9.200 0.019
4602 ALVIN LAKE 0.067 0.970 442.833 4.700 9.400 0.017
4603 ANGOSIURA RESERVOIR 0.019 0.160 423.333 3.717 13.000 0.005
4604 BRANT LAKE 0.194 0.130 432.833 34.150 11.800 0.113
4605 LAKE. BYRON S Q, .443 0.370 438.333 149.350 9.000 0.146
4606 CLEAR LAKE 0.027 0.075 430.167 11.983 8.800 0.009
4607 CLEAR LAKE 1.400 0.270 495.333 691.000 7.000 0.468
4608 COCHRANE LAKE 0.037 0.150 446.000 15.683 15.000 0.008
4609 COTTONWOOD LAKE 0.685 0.265 490.333 112.017 8.600 0.417
4610 DEEREXELO RESERVOIR . 0.033 0.080 303.333 3.650 . 15.000 0.022
4611 ENE IY SWiM LAKE 0.037 0.085 442.600 14.200 8,200 0.013
4612 LAKE HERMAN 0,340 0.155 485.000 58.733 8.600 0.174
4613 ST JOHN LAKE 0,348 .0.080 489.400 120e880 9.800 0.025
4614 LAKE KAMPESKA 0.220 O.105 668.889 20.567 8.200 0.128
4615 MADISON LAKE 0.250 0.090 445.555 22.578 14.000 0.107
4616 LAKE MiTCHELL 0.099 0.085 465.833 14.883 13.800 0.0 15
4617 LAKE NOROEN 0.256 0.165 488.667 46.800 10.000 0.050
4618 OAKWOOE) LAKE EAST 0.146 0.175 487.000 113.600 10.000 0.009
4619 OAKW000 LAKE WEST 0.181 0.135 485.833 159.667 9.600 0.021
4620 PACTOLA RESERVOIR 0.011 0.070 248.444 1.478 11.000 0.006
4621 PICKEREL LAKE 0.049 0.095 439.833 1 5.833 9.600 0.009
4622 LAKE POINSETT 0.115 0.315 468.444 40.211 10.000 0.023
4623 LAKE RED IRON SOUTH 0.042 0.110 430.333 6.883 7.600 0.010
4624 RICHMOND LAKE 0.187 0.150 410.000 18.467 10.000 0.144
4625 ROY LAKE 0.034 0.070 431.000 13.333 11.000 0.010
4626 SAND LAKE 0.489 0.110 471.800 65.790 12.800 0.288
4627 SHERiDAN LAKE 0.053 0.105 394.000 15.433 15.000 0.016
4628 STOCKADE LAKE 0.233
0.150 432.000
1 t.AA A
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LO KE DATA TO BE USED IN RANKiNGS
LAKE MECIAN MEDIAN 500— £IEAN 1 5 MEO IA M
COOE LAKE NAME TOTAL P INORS N MEAN SEC CHLORA PItH 00 015$ ORTHO P
‘629 LAKE VERM 1LLION 0.21 1 0.100 472.833 100.800 9.200 0.092
4630 WALL LAKE 0.194 0.160 441.667 55.267 7.400 0.076
4631 WAU3AY LAKE NORTH o.0 9a 0.145 469.555 127.033 11.400 0.023
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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
MEDIAN MEDIAN 500— MEAN 15— MEDIAN INDEX
CODE LAKE NAME TOTAL P INORG N MEAN. SEC CHLORA WIN 00 O!SS ORTtIO P NO
46U1 LAKE ALBERT 20 4 6) 20 C 6) 10 C 3) 23 4 7) 68 4 20) 60 1 18) 201
4602 ALVIN LAKE 67 ( 20) 0 0) 57 C 17) 90 27) 63 4 19) 63 19) 340
4603 ANGOST(JRA RESERVOIR - 97’ 1’ 29) 30 C 9) 87 4 26) 93 C 28) 20 C 6) 100 C ‘30) 427
4604 BRANT LAKE 404 12) , 53 4 16) 70 4 21) 47 C 14) 27 4 8) 23 C 7) 260
4605 LAKE 81R0N 0 C 3) 3 1) 17 5) 7 C 2) 73 C 22) 13 4 4) 123
4606 CLEAR LAKE 93 C 28) 93 4 28) 83 C 25) 83 4 25) 71 C 23) 90 4 27) 519
4607 -CLEAR LAKE 0 ( ‘0) 10 ( 3) 0 C 0) 0 C 0) 100 4 30) 0 C 0) 110
4608 COCHRANE LAKE 83 4 25) 40 C 11) 50 C 15) -67 ‘C 20) 5 4 0) 93 4 28) 338
4609 COTTONwOOD LAKE ‘3 -4 1) 13 4 4) 3 C 1) 20 C 6) 82 C 24) 3 ( -1) 124
4610 DEERFIELD RESERVOIR 90 4 27) 88 ‘C 26) 97 C 29) 97 ‘4 29) 5 4 0) 53 4 16) ‘430
4611 ENEMY SWIM LAKE . 80 4 24) 82 4 24) 60 4 18) 77 4 23) 88 4 26) 73 4 22) 460
4612 LAKE HERMAN 17 C 5) 33 C 10) 27 C 8) 33 4 10) 82 C 24) 10 C 3) 202
4613 51 JOHN LAKE ‘ 13 4 4) 88 C 26’) 7 4 2) , 13 C ‘4) 53 4 16) 43 C 13) 217
4614 LAKE -KAMPESKA 33 4 .10) -65 C 19) 40 ‘C 12) 57 C 17) 88 C 26) 20 C -6) 303
4615 M’AOISON LAKE 27 C 8) 77 C 23) 53 4 16) 53 1 16) 13 C 4) 30 ‘4 9) 253
4616 LAKE MITCHELL’ 60 ( ‘18) “82 C 24) 47 C 14) -73 4 22) 17 4 5) 70 C 21) 349
4617 LAKE NOROEN , 23C 7) -23 C 7) 13 C :4) 40 C 12) 45 4 12) 40 C 12) 184
4618 OAKW000 LAKE EAST 53 C 16) 17 C 5) 20 C 6) 17 C 5) 45 C 12) 85 4 25) 237
4619 OAKWDOD LAKE WEST ‘ 50 4 15) -50 C 15) 23 4 7) 3 4 1) 58 C 11) 57 4 17) 241
4620 PACTOLA RESERVOIR 100 C 30) 98 4 29) 100 C 30) 100 4 30) 35 C 10) ,‘ 97 4 29) ‘ 530
4621 PICKEREL LAKE 73 4 22) 73 4 22) 67 4 20) 63 4 19) 58 4 17) 85 1 25) 419
4522 LAKE POINSETT 57 4 17) ‘ 7 1 2,) 43 4 13) 43 1 13) 45 C 12) 47 4 14) 242
4623 LAKE RED IRON SOUTH ‘ 77 1 23) 58 C 1’?) 80 C 24) 87 C 2) 93 1 28) 78 4 23) 473
4624 RICMMOt’JD LAKE ‘ 47 C 14) 40 C 11) 90 C 27) 60 C 18) 45 4 12) 17 4 5) 299
4625 ROY LAxE 87 C 26) 98 C 29) 77 ( 23) 80 C 24) 35 4 10) 78 4 23) 455
4626 SAND LAKE 7 C 2) 58 C 17) 33 C 10) 30 C 9) 23 C 7) 7 4 2) 158
4627 SHERIDAN LAKE 70 4 21) 65 C 19) 93 C 28) 70 C 21) 5 4 0) 67 C 20) 310
4628 STOCKADE LAKE lA ( ) 4fl 4 11) - 7 I L
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PERCENT OF
LAKES WITH
HIGHER VALUES CNUM3ER OF
LAKES wITH HIGHER VALUES)
LAKE
CODE
LAKE
NAME
MEDIAN
TOTAL P
MEDIAN
INOPG
N
500—
MEAN
SEC
MEAN
CHLORA
15—
MIN
00
MEDIAN
DISS ORTHO
P
INDEX
NO
4629
LAKE
VERMILLION
37 C 11)
70 C
21)
30
C 91
27 C 8)
68 C
20)
33 C 101
265
4630
WALL
LAKE
43 C 13)
27 C
8)
63
C 19)
37 C 11)
97 C
29)
37 1 11)
304
4631
WAUBAY LAKE NORTH
63 C 19)
47 C
14)
37
C 11)
10 C 3)
30 C
9)
50 C 15)
237
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LAKES RANKED BY INDEX PIGS.
RA4K LAKE CODE LAKE NAME INDEX NO
1 4620 PACTOLA RESERVOIR 530
2 4606 CLEAR LAKE 519
3 4623 LAIcE RED IRON SOUTH 473
4 4611 .E1IEMY SWIM LAKE 460
5 4625 ROY LAKE 455
6 4610 DEERrIELO RESERVOIR 430
7 4603 At’IGOSTURA RESERVOIR 421
8 4621 PICKEREL LAKE 419
9 4627 SHERIDAN LAKE 370
10 4616 LAKE MITCHELL 349
i i 4602 ALVIN LAKE 360.
12 4608 COCHRANE LAKE 338
13 4630 WALL LAKE 304
14 4614 LAKE KAMPESKA 303
15 4624 RICHMOND LAKE 299
16 4629 LAKE VERMLLLION 265
11 4604 BRANT LAKE 260
18 415 MADISON LAKE 253
19 4622 LAKE POINSETT 242
20 4619 OAKWOOD LAKE WEST 241
21 4631 WAUBAY LAKE NORTH 237
22 4618 OAKWOOD LAKE EAST 231
23 4628 SIOCKADE LAKE 225
24 4613 ST JOHN LAKE 211
25 4612 LAKE HERMAN 202
26 4601 LAKE ALBERT 201
27 4617 LArcE NORDEN 184
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LA’cES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAM( INDEX NO
29 4609 COTTONWOOD LAKE 124
30 4605 LAKE BYRON 123
31 4607 CLEAR LAKE 110
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APPENDIX B
CONVERSION FACTORS
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CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 1O = 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 = lbs/square mile
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APPENDIX C
TRIBUTARY FLOW DATA
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TRIBUTARY FLOW INFO ’4ATION F4J SOUTrI DAKOTA 05/03/76
LAKE CODE ‘6?? SpiERIDAN
TOTAL ORAINAr,E AREA OF LAKE(SO KM) 230.5
SUB—DRAINAGE NO MALIZEO FLOWS(CMS)
TPIBIJTARY AREA(S0 ,04) JAN FEB MAR APR MAY JUN J’JL AUG SEP OCT NOV DEC MEAN
462741 233.5 0.055 O.0 5 0.OMS 0.170 0.227 0.340 0.227 0.170 0.085 0.085 0.085 0.095 0.144
462742 183.9 0.085 0.085 0.085 0.142 0.170 0.283 0.198 0.142 0.085 0.085 0.085 0.085 0.128
4627ZZ 46.6 0.0 0.0 0.0 0.028 0.028 0.057 0.028 0.0 0.0 0.0 0.0 0.0 0.012
SUMMARY
TOTAL DRAINAGE AREA OF LAI E = 230.5 TOTAL FLOw IN 1.67
SUM JF SUB—DRAINAGE AREAS = 230.5 TOTAL FLOG OUT = 1.73
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTM YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
462741 10 74 0.057 12 0.057
74 0.057 16 0.057
12 74 0.028 14 0.028
1 75 0.028 14 0.028
2 75 0.028 15 0.028
3 75 0.085 8 0.057
4 75 0.227 12 0.283
5 75 0.085 10 0.142
6 75 0.085 14 0.085
7 75 0.085 5 0.085
8 75 0.0b7 21 0.0b7
9 75 0.057 13 0.057
462742 10 74 0.057 12 0.057
11 74 0.057 16 0.057
12 74 0.028 14 0.029
1 75 0.028 14 0.028
2 75 0.028 15 0.028
3 75 0.085 8 0.028
4 75 0.227 12 0.283
5 75 0.142 10 0.170
6 75 0.085 14 0.113
7 75 0.057 5 0.057
8 75 0.057 21 0.057
9 75 0.057 13 0.057
4627ZZ 10 74 0.028
11 7’. 0.028
12 74 0.028
1 75 0.014
2 75 0.014
3 7 5 0.014
4 75 0.057
5 75 0.057
6 75 0.028
7 75 0.028
8 75 0.028
9 75 0.028
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APPENDIX D
PHYSICAL and CHEMICAL DATA
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STORE r RETRIEVAL DATE 76/05/03
462701
43 58 31.0 103 27 06.0 3
SHEMIOAN LAKE
46303 S3UTPd OAr OTA
090491
I1EPALES 2 1112cj2
0080 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 0 0b25 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NH3—N TOT KJEL N02&N03 PiiOS—CIS
FROM OF TEMP 3ECCIil FIELO CACO3 TOTAL N N—rOTAL ORTiIO
TO DAY FEET CENT MG/L L1 CMES MICROMHO Su P46/L MG/L MG/L M(i/L M&/L P
74/06/25 13 00 0000 8.8 108 170 105 0.030 0.600 0.040 0.005
13 00 0005 8.7 10.2 170 104 0.030 0.500 0.040 0.007
13 00 0020 6.3 9.4 161 102 0.030 0.500 0.050 0.005
13 00 0045 5.9 9.0 158 104 0.040 0.600 0.060 0.005
13 00 0070 5.1 8.0 155 104 0.040 0.500 0.030 0.003
74/07/15 15 05 0000 23.5 9.6 108 242 9.0 100 0.050 0.500 0.050 0.043
15 05 0005 23.5 9.8 240 9.00 99 0.050 0.400 0.060 0.052
15 05 0020 15.8 5.6 222 7.90 115 0.070 0.400 0.070 0.040
15 05 0040 9.1 0,8 192 7.60 113 0.140 0.400 0.100 0.046
15 05 0060 8.3 0.6 192 7.40 121 0.280 0.500 0.050 0.057
74/09/12 14 10 0000 16.0 8.4 96 169 8.61 88 0.040 O 700 0.020K 0.009
14 10 0005 16.0 7.6 167 8.6? 86 0.030 0.600 0.020K 0.014
14 10 0020 15.4 5.4 375 8.21 89 0.060 0.600 0.020K 0.016
14 10 0025 14.3 1.2 179 7.21 107 0.180 0.700 0.020K 0.035
14 30 0030 12.3 0.0 185 7.03 110 0.280 0.800 0.020K 0.051
14 10 0050 9.0 0.0 171 7.03 115 0.700 1.100 0.020K 0.041
14 10 0076 8. 0.0 175 7.01 119 0.950 1.200 0.020K 0.004
00665 32217 00031
DATt TIME DEPTH PH0S—TOT CHL.RPHYL INCOT LT
FROM OF A REMNING
To DAN’ FEET 14G/L P UGIL PERCENT
74104/25 13 00 0000 0.027 8.1
13 00 0005 3.028
13 00 0020 0.023 1.0
13 00 0045 0.02’.
13 00 0070 0.024
74/07/15 15 05 0000 0.059 26.5
15 05 0005 0.060
15 05 0020 0.059 1.0
15 05 0040 0.072
15 05 0060 0.072
74/09/12 14 10 0000 0.027 4,4
14 10 0005 0.028
14 10 0020 0.02
14 10 0025 0.041
14 10 0030 0.074
14 10 0050 0.09
14 10 0076 0.259
K K ” ’ TO
4AN __CAJ
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ST3RET RETRIEVAL DATE 76/05/03
462702
43 5 23.0 103 2d 15.0 3
5r4EI IDAN LAKE
461Ci SOUT l DAM)rA
090491
11EFALES 2111202
00 .I FEET OEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00b25 00630 00b71
DATE TIME DEPTH MATER DO TRANSP CNDUCTVY PH T ALK N’13—N TOT KJEL N02&N03 P OS—OIS
FQOM OF TEMP SECCeII FIELD CACO3 TOTAL N N-TOTAL RT iO
TO DAY FEET CENT MG/L INCHES MICROI4HO StJ MG/L MG/L M&/L MG/L MG/L P
14/0’./25 13 35 0000 10.0 102 178 103 0.020 0.600 0.040 0.008
13 35 0005 10.0 10.2 176 102 0.020 0.500 0.030 0.007
13 35 0020 7.4 10.4 166 103 0.030 0.500 0.040 0.006
13 35 0035 5.9 8.8 160 99 0.020 0.300 0.030 0.004
74/07/15 14 40 0000 23.5 9.6 126 238 9.20 101 0.060 0.400 0.080 0.056
1’. 40 0005 23.’ . 9.6 239 9.10 98 0.050 0.400 0.070
14 40 0017 18.2 6.8 227 8.40 105 0.050 0.400 0.060 .047
14 40 0030 10.4 0.2 203 7.60 112 0.070 0.300 0.020 0.056
14 40 0041 9.2 0.2 198 7.40 118 0.270 0.400 0.050 0.085
74/09/12 14 35 0000 16.0 8.0 96 175 8.65 109 0.020 0.400 0.020K 0.006
14 35 0005 15.9 7.8 167 8.63 84 0.030 0.600 0.020 0.013
14 35 0025 15.2 3.6 177 7.69 93 0.100 0.500 0.020K 0.013
14 35 0030 11.5 0.2 183 7.03 112 0.290 0.700 0.020K 0.054
14 35 0035 9.8 0.0 179 7.03 117 0.620 0.500 0.020K 0.063
14 35 0043 9.1 0.0 175 7.03 122 0.220 1.200 0.020K 0.084
00665 32217 00031
DATE TIME DEPTH PI$OSTOT CHLRPHYL INCOT LT
FROM OF A REMNING
TO DAY FEET MG/L P UG/L PERCENT
7 ’ ./04/25 13 35 0000 u.028 8.3
13 35 0005 0.030
13 35 0020 0.027 1.0
13 35 0035 0.033
74/07/15 14 40 0000 0.072 34.5
14 40 0005 0.064
14 40 0017 0.068 1.0
14 40 0030 0.076
14 40 0041 0.112
74/09/12 14 35 0000 0.014 10.8
14 35 0005 0.029
14 35 0025 0.026
14 35 0030 0.081
14 35 0035 0.132
14 35 0043 0.143
K VALUE KNOWN TO BE
LESS THAN INDICATED
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APPENDIX E
TRIBUTARY DATA
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STO ET RETRIEVAL DATE 76/05/04
462741
43 2 55.0 103 25 i5.0 ‘.
S I’J i CREEK
46103 7.5 M l RUShMO t
U/ShE lUAI LAI E 090491
EC ) dROG 1 Nj NE OF SHERIDAN LAict. uAM
I IEPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TINE DEPTH N02&N03 TOT KJEL Np13—N PhOS— IS P iOS—TOT
FI OM OF I-T0TAL N TOTAL OPTri O
TO DAY FEET MG/L MG/L MG/I 14 6/I P MG/I
74/10/12 14 25 0.008 0.’.O0 0.015 0.020 0.030
74/11/16 09 00 0.032 0.300 0.025 0.015 0.025
75/03/08 12 00 0.376 1.000 0.072 0.012 0.030
75/04/12 12 00 0.070 0.900 0.130 0.020 0.080
75/05/10 16 20 0.015 0.650 0.020 0.010 0.020
75/05/22 13 15 0.005 1.900 0.020 0.015 0.085
75/06/14 14 00 0.015 0.575 0.020 0.010 0.035
75/07/05 07 00 0.055 0.350 0.035 0.035 0.045
75/08/21 17 15 0.015 0.500 0.015 0.025 0.047
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STORET RETRIEVAL DATE 76/05/0 ’
4627A2
43 ST 35.0 103 29 35.0 4
SPiUi G C’ EEK
6103 7.5 MT RUShMORE
T/Sii rlIDA’i LAKE 090491
UN!M?RI)v€i) i O sING JUST OFF US h Y .385
11EPALES 2111204
0000 FEET OEPTn CLASS 00
00630 00625 00610 00611 00665
DATE TIME OEPT?4 N02&N03 TOT IcJEL NH3—I’1 PHOS—DIS PHOS-TOT
FROM OF N-TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L MG/L P4G/L P r4G/L ,
74/10/12 15 00 0.008 0.200 0.010 0.010 0.020
74/11/16 09 30 0.176 0.100 0.010 0.015 0.020
74/12/14 12 00 0.256 0.300 0.020 0.030 0.010
75/03/08 12 20 0.368 .050 0.080 0.032 0.050
7 5/0”/12 12 30 0.240 1.450 0.0 0 0.035 0.080
75/05/13 11 5’. 0.015 0.550 0.042 0.015 0.030
75/06/14 12 20 0.020 0.400 0.030 0.025 0.060
75/07/05 07 20 0.020 0.300 0.020 0.040 0.050
75/08/21 07 45 0.020 0.950 0.020 0.040 0. Oa O
75/09/13 13 00 0.020 0.300 0.010 o.oosic 0.030
I c. VALUE KNOWN TO BE
LESS THAN INDiCATED
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STQRET RETRIEVAL DATE 76/05/04
4627B1
43 59 05.0 103 29 10.0 4
HORSE CREEt(
46103 7.5 MT , uSHHORE
T/Sri 1DAN LAKE 090491
SEC W BRDG .8 MI 11* OF S 1ERIDAN LAKE
1 1EPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2&N03 TOT KJEL Nr$3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MGfL P46/L MG/L HG/L P MG/L P
74/10/12 1’. 45 0.024 1.600 0.025 0.010 0.020
74/11/16 09 20 0.152 0.400 0.015 0.010 0.010
74/12/14 11 45 0.192 0.200 0.015 0.015 0.020
75/02/15 10 35 0.216 1.200 0.016 0.016 0.020
75/03/08 12 11 0.144 0.650 0.024 0.008 0.010
75/04/12 12 15 0.195 1.700 0.120 0.025 0.050
75/05/10 11 41 0.040 0.450 0.015 0.010 0.010
75/06/14 14 10 0.020 0.300 0.025 0.010 0.020
75/07/05 07 10 0.020 0.300 0.010 0.010 0.020
15/08/21 07 30 0.020 0.045 0.015 0.040
75/09/13 12 50 0.020 0.200 0.005 0.005K 0.030
K VALUE KNOWN TO BE
LESS THAN INDICATED
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