U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE ST, JOHN
HAMLiri COUNTY
SOUTH DAKOTA
EPA REGION VIII
WORKING PAPER No, 610
CORV ALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•A-(..ivo. 699-440
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REPORT
ON
LAKE ST, JOHN
HAMLIN COUNTY
SOUTH DAKOTA
EPA REGION VIII
WORKING PAPER No, 610
HlTH THE COOPERATION OF THE
SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION
AND THE
SOUTH DAKOTA NATIONAL GUARD
JANUARY/ 1977
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I
CONTENTS
Page
Foreward ii
list of South Dakota Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
I I . Lake and Drainage Basin Characteristics 1
II I . Lake Water Quality Sumary 2
IV. Nutrient Loadings 3
V. Literature Reviewed 7
VI. Appendices 8
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration conunitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservo I rs.
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 [ 5303(e)], water
quality criteria/standards review [ 5303(c)], clean lakes [ 5314(a,b)],
and water quality monitoring [ 5106 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 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.
AC KNOWL EDGMENT
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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lv
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
Deerfiel d Pennington
Enemy Swim Day
Herman Lake
John Hamlin
Kampeska Codington
Madison Lake
Mitchell Davtdson
Norden Hamlin
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 Vermiliton McCook
Wall Minnehaha
Waubay Day
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/
9705
/
7.
L Dak.
Map Location
LAKES ST. JOHN, ALBERT
& POINSETT
Tributary Sampling Site
Lake Sampling Site
Sewage Treatment Facility
F
9710’
I
c..
(
)
>/
1’
Lake
Lake
22A,)ø’
1381
j
(
. -.
44 ’30
Scale 2
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LAKE ST. JOHN
STORET NO. 4613
I. INTRODUCTION
Due to low flow conditions, only a few outlet samples were collected.
Therefore, this report relates only to the lake sampling data. However,
the outlet and wastewater treatment plant effluent data obtained are
included in Appendix E for the record.
II. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake St. John is eutrophic. It
ranked twenty—fourth in overall trophic quality when the 31 South
Dakota lakes sampled in 1974 were compared using a combination of
six water quality parameters*. Twenty-six of the lakes had less
mediar total phosphorus, 17 had less median dissolved orthophos-
phorus, three had less and one had the same median inorganic nitro-
gen, 26 had less mean chlorophyll a, and 28 had less mean Secchi
disc transparency.
Survey limnologists reported algal blooms in July and September.
B. Rate-Limiting Nutrient:
The algal assay results indicate that the lake was nitrogen
limited in April and September. The lake data indicate nitrogen
limitation at all sampling times.
* See Appendix A.
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C. Prec
1.
2.
Drainage
area ( 2)*
23.3
422.5
445.8
450. 7**
Mean flow
( m 3 /sec)*
0.009
0.057
0.066
0.064
t Table of metric cOnversions-—Appendix B.
tt Murphey, 1974.
* For limits of accuracy, see Working Paper No. 175, “...Survey Methods,
1973—1976”.
** Includes area of lake.
*** See Working Paper No. 175.
2
III. LAKE AND DRAINAGE BASIN CHARACTERISTICSt
A. Lake Morpholnetrytt:
1. Surface area: 4.86 kilometers 2 .
2. Mean depth: 1.2 meters.
3. Maximum depth: 2.4 meters.
4. Volume: 5.832 x io m 3 .
5. Mean hydraulic retention time: 2.9 years (based on outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Name
Unnamed Creek B-i
Minor tributaries &
immediate drainage —
Total s
2. Outlet —
Unnamed Creek A—l
ipitation***:
Year of sampling: 38.5 centimeters.
Mean annual: 60.0 centimeters.
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3
IV. LAKE WATER QUALITY SUMMARY
Lake St. John was sampled three times during the open-water season
of 1974 by means of a pontoon—equipped Huey helicopter. The first time,
a near—surface sample for physical and chemical parameters was collected
from one station on the lake, and the latter two times, samples were
collected from two depths at two stations (see map, page v). During
each visit, a single depth—integrated (near bottom to surface) sample
was collected from the station(s) for phytoplankton identification and
enumeration; and during the first and last visits, single 18.9-liter
depth—integrated samples were collected for algal assays. Also each
time, a depth-integrated sample was taken from each station sampled for
chlorophyll a analysis. The maximum depths sampled were near-surface
at station 1, 0.6 meters at stations 2, and 0.3 meters at station 3.
The sampling results are presented in full in Appendix 0 and are
summarized in the following table.
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. SJMM RY OF P-’YSICAL AND CHEMICAL C4Ar ACTE ISTICS F0 ST JOHN LAKE
ST0 ET CODE 4613
1ST SAMPL1 4G 4/23/74) 2 D SAMPLING 7/12/14)
1 SITES 2 SITES
2 SITES
3R ) SAMPL1r’ G I /2O/74)
P# AMETE
RANGE
MEAN
MEDIAN
PANGE
IEAN
MEDIAN
RANGE
MEAN
MEDIAN
TEMP (C)
E .2 — 8.2
8 .
8.2
24.5
— 24.8
24.6
24.6
16.1
— 16.1
16.1
16.1
DIS OXY (Mfl/U
10.8 — 10.8
10.8
10.8
5.2
— 14.8
8.4
6.9
9.2
— 9.4
9.3
9.4
CNOCTVY (MCPOMO)
567. — 567.
567.
567.
1392.
— 1410.
1401.
1401.
1288.
— 1290.
1289.
1289.
Pr (STAND UNITS)
8.5 — 8.5
8.5
8.5
8,6
— 8.7
8.7
8.7
8.6
8.7
8.7
8.7
TOT ALK (MG/L)
185. — 185.
185.
185.
228.
— 244.
234.
232.
172.
— 178.
175.
175.
TOT P (MG/L)
0.24S — 0.245
0.245
0.245
0.348
— 0.418
0.397
0.410
0.316
— 0.387
O.33
0.325
OMThO P (MG/I)
0.017 — 0.017
0.017
0.017
0.066
— 0.079
0.072
0.072
0.018
— 0.025
0.021
0.020
N02 .N03 (MG/L)
0.040 — 0.040
0.040
0.040
0.060
— 0. IOD
0.085
0.090
0.020
— 0.020
0.020
0.020
AMMONIA (MG/I)
0.040 — 0.040
0.040
0.040
0.080
— 0.110
0.092
0.090
0.030
— 0.040
0.037
0.040
KJLL N (MG/I)
2.200 — 2.200
2.200
2.200
2.600
— 3.300
2.950
2.950
4.800
— 5.100
4.925
4.900
IN0 G N (MG/L)
0.080 — 0.080
0.080
0.080
0.1..0
— 0.200
0.177
0.185
0.050
— O.ObO
0.057
0.060
TOTAL N (MG/U
2.240 — 2.240
2.240
2.240
2.700
— 3.390
3.035
3.025
4.820
— 5.120
4,945
4,920
CHLR YL A ((U./L)
76.2 — 76.2
76.2
76.2
133.8
— 142.6
138.2
138.2
78.3
— 173.5
125.9
125.9
SECCHI (METEI S)
0.2 — 0.2
0.2
0.2
0.2
— 0.3
0.3
0.3
0.3
— 0.3
0.3
0.3
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5
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Algal Units
Date Genera per ml
04/23/74 1. Nitzschia 58,421
2. Flagellates 20,082
3. Melosira 2.• 10,155
4. A ki trodesmus 6,276
5. Stephanodiscus J• 5,135
Other genera 5,590
Total 105,659
07/12/74 1. Melosira p. 2,147
2. Oocystis . 1 ,975
3. Stephanodiscus p. 1,632
4. Scenedesmus . 1 ,374
5. Microcystis . 1,288
Other genera 8,585
Total 17,001
09/20/74 1. Oscillatoria 44,767
2. Binuclearia J!. 4,277
3. Closterium 3,422
4. Coelospffaerium p. 3,279
5. Melosira p. 2,709
Other genera 15,541
Total 73,995
2. Chlorophyll a -
Sampling Station Chlorophyll a
Date Number ( pg/i )
04/23/74 1 76.2
2
3
07/12/74 1 —
2 142.6
3 133.8
09/20/74 1 -
2 78.3
3 173.5
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6
Spike (mg/jr
Control
0.050 p
o.oso P + 1.0 N
1.0 N
b. September
Spike (mg i ] ]
Control
0.050 p
a.oso p + 1.0
1.0 N
Ortho P
Conc. ( inn/i )
0.075
0.125
0.125
0.07 5
sample —
Ortho P
Conc. (mg/i )
0.110
0.1 60
N 0.160
0.110
Inorganic 14
Conc. (mg/i )
0.048
0.048
1.048
1.048
Inorganic N
Conc. (m g/fl
0.454
0.454
1.454
1.454
Maximum yield
( mp/i-dri wt. )
4.0
3.9
30. 1
28.0
Maximum yield
( mg/i-dry wt. )
15.2
17.5
35.5
35.7
2. Discussion -
lhe control yields of the assay alga, Selenastrurn c pri-
cornutum , indicate that the potential primary productivity
of Lake St. John was high at the times the assay samples were
collected (04/23/74 and 09/20/74). Also, significant increases
in yield with the addition of nitrogen alone indicate that the
lake was limited by nitrogen at those times. Note that the
addition of phosphorus alone did not result in significantly
increased yields.
The lake data also indicate nitrogen limitation; i.e.,
the mean inorganic nitrogen/orthophosphorus ratios were 5/1
or less on all sampling occasions.
C. Limiting Nutrient Study:
I. Autoclaved, filtered, and nutrient spiked -
a. April sample -
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7
V. LITERATURE REVIEWED
Murphey, Duane G., 1974. Personal communication (lake morphometry).
SE ) Dept. of Env. Prot., Pierre.
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8
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
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LAKE MEDIAN MEDIAN 500— MEAN 15— MEDIAN
CODE LAKE NAME TOTAL P INORO N MEAN SEC CHLORA MIN DO DISS ORTMO P
4601 LAKE ALBERT 0.321 0.170 & 9.111 106.289 9.200 0.019
4602 ALVIN LAKE 0.067 0.970 442.833 4.700 9.400 0.017
4603 ANGOSTURA 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 0.443 0.370 488.333 149.350 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 0.031 0.150 446.000 15.683 15.000 0.008
4609 COTTONWOOD LAKE 0.685 0.265 490.333 112.011 8.600 0.417
4610 DEERFIELD RESERVOIR 0.033 0.080 303.333 3.650 15.000 0.022
4611 ENEMY 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 0.3 48 0.060 489.400 120.880 9 .800 0.025
4614 LAKE KAMPESKA 0.220 0.105 468.889 20.56? 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 0.015
4617 LAKE NORDEN 0.256 0.165 488.667 46.800 10.000 0.050
4618 OAKWOO [ ) LAKE EAST 0.1t6 0.175 481.000 113.600 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 0.010 248.444 1.478 11.000 0.006
4621 PICKEREL LAKE 0.049 0.095 439.833 15.833 9.600 0.009
4622 LAKE POINSETT 0.115 0.3 15 468.444 40.21 1 10.000 0.023
4623 LAKE RED IRON SOUTH 0.042 0.110 430.333 6.883 1.600 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 25.400 15.000 0.109
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LAKE DATA TO BE USED IN RANKINGS
LAKE MEDIAN MEDIAN 500- MEAN IS— MEDIAN
CODE LA(E NAME TOTAL P INORG N MEAN SEC .rfLORA MIN DO DISS ORTHO P
4629 LAKE VERMILLION 0.211 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 WAUdAY LAKE NORTH 0.098 0.145 469,555 127.033 11.400 0.023
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MEDIAN
500-
LAKE
CODE
LAKE NAME
MEDIAN
TOT-AL P
INORG N
MEAN SEC
MEAN
CHLORA
15—
MIN
DO
DISS
MEDIAN
ORTIlO P
INDEX
NO
4601
LAME ALBERT
20 C 6)
20
C 6)
10
C ..)
23 7)
68 C
20)
60
C 18)
201
4602
ALVIN LAKE
67 C 20)
0
C 0)
57
C 17)
90 C 27)
63 (
19)
63
C 19)
3’.O
4603
ANGOSTURA RESERVOIR
97 ( 29)
30
C 9)
87
C 26)
93 C 28)
20 C
6)
100
1 30)
427
4604
BRANT LAKE
40 C 12)
53
C 16)
70
C 21)
47 C 14)
27 C
8)
23
C 7)
260
4605
LAKE BYRON
10 C 3)
3 C 1)
17
( 5)
7 C 2)
73 C
22)
13
1 4)
123
4606
CLEAR LAKE
93 1 28)
93
1 28)
83
C 25)
83 C 25)
77 C
23)
90
1 27)
519
4607
CLEAR LAKE
0 C 0)
10 1 3)
0
C 0)
0 C 0)
100 C
30)
0
( 0)
110
4608
COCHRANE LAKE
83 1 25)
40 1 11)
50
C 15)
67 1 20)
5 C
0)
93
C 28)
338
4609
COTTONwOOD LAKE
3 C 1)
13 C 4)
3 C 1)
20 ( 6)
82 C
24)
3
C 1)
124
4610
DEERFIELD RESERVOIR
90 ( 27)
88 C 26)
97 ( 29)
97 1 29)
5 C
0)
53
1 16)
430
4611
ENEMY SWIM LAKE
80 C 24)
82 1 24)
60 C 18)
77 1 23)
88 C
26)
73
1 22)
460
4612
LAKE HERMAN
17 1 5)
33 1 10)
27 C 8)
33 C 10)
82 (
24)
10
1 3)
202
4613
ST JOHN LAKE
13 C 4)
88 C 26)
7 C 2)
13 C 4)
53 C
16)
43
C 13)
217
4614
LAKE KAMPESKA
33 1 10)
65 C 19)
40 C 12)
57 1 17)
88 1
26)
20
C 6)
303
4615
4616
MADISON LAKE
LAKE MITCHELL
27 C 8)
60 1 18)
77 C 23)
82 1 24)
53 1 16)
47 ( 14)
53 C 16)
73 C 22)
13 C
17 (
4)
5)
30
70
C 9)
C 21)
253
349
4617
LAKE NORDEN
23 1 7)
23 C 7)
13 C 4)
40 C 12)
45 (
12)
40
C 12)
184
4618
OAKWOOC LAKE EAST
53 C 16)
17 ( 5)
20 1 6)
17 C 5)
45 C
12)
85
C 25)
237
4619
OAKW000 LAKE WEST
50 1 15)
50 1 15)
23 C 7)
3 1 1)
58 C
17)
57
1 17)
241
4620
PACTOLA RESERVOIR
100 C 30)
98 1 29)
100 C 30)
100 1 30)
35 1
10)
97
C 29)
530
4621
PICKEREL LAKE
73 C 22)
73 C 22)
67 C 20)
63 1 19)
58 1
17)
85
1 25)
419
4622
LAKE POINSETT
57 C 17)
7 1 2)
43 1 13)
43 C 13)
45 1
12)
47
C 14)
242
4623
LAKE RED IRON SOUTH
77 ( 23)
58 ( 17)
80 ( 24)
87 1 2b)
93 1
28)
78
C 23)
473
4624
RICHMOND LAKE
47 1 14)
40 C 11)
90 1 27)
60 1 18)
45 1
12)
17
C 5)
299
4625
ROY LAI(E
87 1 26)
98 1 29)
77 C 23)
80 C 24)
35 C
10)
78
C 23)
455
4626
SAND LAKE
7 1 2)
58 1
17)
33 C
10)
30 ( 9)
23 C
7)
7
1 2)
158
4627
SHERIDAN LAKE
70 C 21)
65 C
19)
93 C
28)
70 1 21)
5 1
0)
67
1 20)
370
4628
STOCKADE LAKE
30 1 9)
40 1
11)
73 C
22)
C
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PERCENT OF LAKES WITH HIGHER VALUES (NUMaER OF LAKES WITH HIGHER VALUES)
LA’cE MEDIAN MEDIAN 500— MEAN 15— MEDIAN INDEX
CODE LAKE NAME TOTAL P IFIORG N MEAN SEC CPILORA 1 11W DO DISS ORTHO P NO
4629 LAKE VERMILLION 37 ( 11) 70 ( 21) 30 C 9) 27 C 8) 68 ( 20) 33 ( 10) 265
4630 WALL LAKE 43 C 13) 27 C 8) 63 C 19) 37 C 11) 97 ( 29) 37 C 11) 304
4631 WAUBAY LAKE NORTH 63 C 19) 47 C 14) 37 C 11) 10 ( 3) 30 C 9) 50 C 15) 237
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RANK LAKE CODE LAKE NAME INDEX NO
1 4620 PACTOLA RESERVOIR 530
2 4606 CLEAR LAKE 519
3 4623 LAKE RED IRON SOUTH 473
4 4611 ENEMY SWIM LAKE 460
5 4625 ROY LAKE 455
6 4610 DEERFIELD RESERVOIR 430
7 4603 ANGOSTURA RESERVOIR 427
8 4621 PICKEREL LAKE 419
9 4627 SHERIOAN LAKE 370
10 4616 LAKE MITCHELL 349
11 4602 ALVIN LAKE 340
12 4608 COCHRANE LAKE 338
13 4630 WALL LAKE 304
14 4614 LAKE KAMPESKA 303
15 4624 RICHMOND LAKE 299
16 4629 LAKE VERMILLION 265
17 4604 BRANT LAKE 260
18 4615 MADISON LAKE 253
19 4622 LAKE POINSETT 242
20 4619 OAKWOOD LAKE WEST 241
21 4631 WAUBAY LAKE NORTH 237
22 4618 OAKW000 LAKE LAST 237
23 4628 STOCKADE LAKE 225
24 4613 ST JOHN LAKE 211
25 4612 LAKE HERMAN 202
26 4601 LAKE ALBERT 201
27 4617 LAKE NOROEN 184
28 4626 SAND LAKE 158
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LAKES RANKED BY INDEX 105.
RANK LAKE CODE LAKE NAME 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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CONY ERS ION FA(;TORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
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 = lbs/square mile
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APPENDIX C
TRIBUTARY FLOW DATA
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TRI8UTARY FLOw INFORMATION FOR SOUTH DAKOTA 05/03/76
LA (E CODE ‘. 3 T. JOHN
TOTAL DRAINAGE AREA OF LAKE(S0 e(M) 450.7
SU 3-D AI 1AGE NORMALIZED LO S(CMS)
TRI JTARY AREA(S0 KM) JAN FEB MAR APR MAY JUN J’JL AUG SEP OCT NOV DEC lEAN
4613M1 450.7 0.0 0.0 0,142 0.283 0.162 0.085 0,057 0.028 0.02 3 0.0 0.0 0.0 (1.06’.
4613 1 23.3 0.0 0.0 0.0 0.057 0.028 0.02e 0.0 0.0 0.0 0.0 0.0 0.0 0.009
4613 1Z 427.3 0.0 0.0 0.1”2 0.255 0.113 0.057 0.057 0.028 0.028 0.0 0.0 0.0 0.057
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 450.7 TOTAL FLOW IN = 0.79
SUM OF SUB—DRAINAGE AREAS 450.7 TOTAL FLOW OUT = 0.76
MEAN MONTHLY FLOWS AND )AILY FLOWS(CMS)
TRI LJTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
46 13A1 10 74 0.0 12 0.0
11 74 0.0 6 0.0
12 74 0.0 1 0.0
1 75 0.0 19 0.0
2 75 0.0 23 0.0
3 75 0.0 9 0.0
4 75 0.006 13 0.003
S 75 0.003 3 0.003 18 0.003
6 75 0.0 7 0.0 19 0.0
7 75 0.0 20 0.0
8 75 0.0 17 0.0
9 75 0.0 21 0,0
4613 1 10 74 0.0 12 0.0
11 74 0.0 10 0.0
12 74 0.0 1 0.0
1 75 0.0 19 0.0
2 75 0,0 23 0.0
3 75 0.0 9 0.0
4 75 0.0 13 0.0
5 75 0.0 3 0.0
6 75 0.0 7 0.0 19 0.0
7 75 0.0 20 0.0
8 75 0.0 17 0.0
9 75 0.0 21 0.0
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APPENDIX D
PHYSICAL and CHEMICAL DATA
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STORE I RETRIEVAL DATE 76/05/03
461301
44 34 00_n 097 13 15.0 4
ST JOHN LAKE
46057 SOUTH CAPSOTA
090791
I1EPALES 2111202
0005 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 0 0610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP Ct IOUCTVY PH T ALK 1*13-N TOT KJEL. N026.N03 PHOS—QIS
FROM or TEMP SECCHI FIELD CACO3 TOTAL N N-TOTAL ORTrIO
TO OAr FEET CENT ‘IG/L INCHES HICROMMO S W PIG/L MG/L MG/L MG/L MG/I.. P
74/04/23 13 30 0000 8.2 10.8 9 567 8.55 185 0.040 2.200 0.040 0.017
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLP HYL INCDT LT
FROM or A REMt4ING
TO DAY FEET MG/L ° UG/L PERCENT
74/04/23 13 30 0000 0.245 76 .2
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STORET RETRIEVAL DATE 76/05/0)
461302
44 33 54.0 091 12 00.0 3
ST JOHN L cE
46 SOUTH DAKOTA
090 ic i
1 IEPALES
000’ FEET
2111202
DEPTH CLASS 00
74/07/12 11 30 0000
11 30 0001
74/09/20 11 00 0000
11 00 0001
11 00 0002
00665 32217
P1105—TOT CHLRPHYL
A
MG/L P UG/L
0.348
0,408
0.316
0.311
00031
INCDT LT
REMN ING
PERCENT
DATE
TIME
DEPTH
FRO
OF
TO
DAY
FEET
74/07/12
Li 15
11 15
0000
0001
74/09/20
Ii 20
11 20
0000
0002
DATE
TIME
DEPTH
FROM
OF
TO
DAY
FEET
00010
00300
00077
00094
00400
00410
O Ob lO
00625
00630
00671
WATER
DO
TRANSP
CNDUCTVY
PH
T ALaS
NH3—N
TOT KJEL
NO2 NO3
PpIOS—OIS
TEMP
SECCHI
FIELD
CACO3
TOTAL
N
N—TOTAL
ORTHO
CENT
‘46/L
INCHES
MICROMHO
SU
MG/L
MG/L
MG/L
MG/L
MG/L P
24.5
14.8
8
1392
8.70
228
0.110
3.000
0.090
0.066
24.5
5.2
1392
8.70
228
0.090
3.300
0.090
0.079
16.1
9,4
12
1288
8.68
175
0.040
4.800
0.020K
0.018
16.1
9.2
1288
8.68
172
0.030
5.100
0.020K
0.025
142.6
78,3
1.0
1.0
K VALUE KNOWN 10 8E
LESS THAN INDICATED
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STOREr RETRIEVAL DATE 76/05/03
4o1303
44 34 00.0 097 10 05.0 3
ST JOrIN L E
46057 SOUTrI DAIcOTA
1LEPALES 2111202
0004 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NH3N TOT KJEL NO2 r O3 Pr OS—OIS
FROM OF TEMP SECCI ’I FIELD CACO3 TOTAL N N—TOTAL ORTPIO
TO DAY FEET CENT MG/L INCHES MICRQMPfQ SU MG/L MG/I MG/L MG/L MG/L P
74/07/12 11 30 0000 24.8 7.8 12 1410 8.70 236 0.090 2.600 0.100 0.068
11 30 0001 24.8 6.0 1410 8.60 244 0.080 2.900 0.060 0.076
74/09/20 11 00 0000 16.1 9.4 12 1290 8.64 175 0.040 4.900 0.020 0.021
11 00 0001 16.1 1290 8.64 178 0.040 4.900 0.020K 0.019
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLRPHYL INCDT LT
FROM OF A REMNING
TO DAY FEET MG/L P UG/L PERCENT
74/07/12 11 15 0000 0.413 133.8
11 15 0001 0.418 1.0
74/09/20 11 20 0000 0.334 173.5
11 20 0002 0.387 1.0
K VALUE KNOWN TQ [ .
LESS THAN INDICATED
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APPENDIX E
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
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ST0 ET RETRIEVAL DATE 76/05/04
‘6 1 3A1
44 33 30.0 097 10 10.0 4
UNNAMED c ic
46 7.5 LAI E NOROEN
0/LAKE ST ..IQrIN 090791
d DG ON SEC Wi) 2 MI S OF JCT WITH HcJY 2c
1 IEPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 006b5
DATE TIME r)EPTrI N026N03 TOT KJEL Nti3N PHQSDIS PHOSTOT
FROM OF N—TOTAL N TOTAL ORTIIO
TO DAY FEET MG/L MG/L MG/I MG/L P MG/L ?
75/04/13 09 t5 19.800 3.800 1.450 0.360 0.440
75/05/03 14 25 0.010 3.450 0.055 0.040 0.160
75/05/18 10 30 0.015 3.900 0.110 0.010 0.110
75/06/07 14 45 0.020 3.150 0.080 0.020 0.12C
75/06/19 20 20 0.005 3.500 0.055 0.020 0.110
75/06/22 £3 30 0.005 3.700 p .075 0.050 0.140
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STORET RETRIEVAL DATE 75/05/04
461321 P1)461321 P000393
44 34 30.0 097 12 15.0 4
LANE iO OEl
46 7.5 LAI E NOPOL
D/LAvSE ST. JOPIN 090791
LA cE ST. JO i
1 IEPALES 21412u4
0000 FEET DEPTH CLASS 00
00530 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH NO2 NO3 TOT KJEL NH3—N P,-sOS—DIS PiiOS—TOT FLOW CONDUIT
FROM OF N—TOTAL N TOTAL ORTIIO RATE FLOw-M6D
TO DAY FEET MG/L MG/L P4G/L MG/L P MG/I P INST 1460 MONTHLY
75/01/06 15 30 0.080 26.000 10.500 3.700 21.000
75/05/01 0.050
75/07/08 08 15 0.025 11.000 2.350 2.100 10.dOO 0.125 0.125
75/07/24 0.025 15.000 0.140 4.400 9.000 0.125 0.125
75/11/02 1’. iS 0.025 22.000 0.100 10.500 ia.oOo
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