U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
U\KEKEGONSA
DANE COUNTY
WISCONSIN
EPA REGION V
WORKING PAPER No,
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER • CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
&GPO 697.032
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REPORT
ON
LAKEKEGONSA
DANE COUNTY
WISCONSIN
EPA REGION V
WORKING PAPER No, 40
WITH THE COOPERATION OF THE
WISCONSIN DEPARTMENT OF NATURAL RESOURCES
AND THE
WISCONSIN NATIONAL GUARD
OCTOBER, 1974
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•1
CONTENTS
Page
Foreword ii
List of Wisconsin Study Lakes iv, v
Lake and Drainage Area Map vi
Sections
I. Conclusions 1
II. Introduction 3
III. Lake and Drainage Basin Characteristics 4
IV. Lake Water Quality Summary 5
V. Nutrient Loadings 10
VI. Literature Reviewed 14
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11
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 fresh water 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 r 3l4(a,b)],
and water quality monitoring [ 1O6 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
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.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Wisconsin Department of
Natural Resources for professional involvement and to the Wis-
consin National Guard for conduct of the tributary sampling
phase of the Survey.
Francis H. Schraufnagel, Acting Assistant Director, and Joseph
R. Ball of the Bureau of Water Quality, and Donald R. Winter, Lake
Rehabilitation Program, provided invaluable lake documentation and
counsel during the Survey. Central Office and District Office per-
sonnel of the Department of Natural Resources reviewed the prelim-
inary reports and provided critiques most useful in the preparation
of this Working Paper series.
Major General James J. Lison, Jr., the Adjutant General of
Wisconsin, and Project Officer CW-4 Donald D. Erickson, who directed
the volunteer efforts of the Wisconsin National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF WISCONSIN
LAKE NAME COUNTY
Altoona Eau Claire
Beaver Dam Barron
Beaver Dam Dodge
Big Eau Pleine Marathon
Browns Racine
Butte des Morts Winnebago
Butternut Price, Ashland
Castle Rock Flowage Juneau
Como Walworth
Crystal Vilas
Delavan Walworth
Eau Claire Eau Claire
Elk Price
Geneva Walworth
Grand Green Lake
Green Green Lake
Kegonsa Dane
Koshkonong Jefferson, Rock, Dane
Lac La Belle Waukesha
Long Price
Middle Walworth
Nagawi cka Waukesha
Oconomowoc Waukesha
Okauchee Waukesha
Petenwell Flowage Juneau
Pewaukee Waukesha
Pigeon Waupaca
Pine Waukesha
Poygan Winnebago, Waushara
Rock Jefferson
Rome Pond Jefferson, Waukesha
Round Waupaca
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V
LAKE NAME COUNTY
Shawano Shawano
Sinnissippi Dodge
Swan Columbia
Tainter Dunn
Tichigan Racine
Townline Oneida
Trout Vilas
Wapogassett Polk
Wausau Marathon
Willow Oneida
Winnebago Winnebago, Fond Du Lac,
Cal umet
Wisconsin Columbia
Wissota Chippewa
Yellow Burnett
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vi
Wisconsin
Map Locati on
LAKE
KEGON SA
® Tributary Sampling
Si te
>< Lake Sampling Site
Sewage Treathient
Facility
Direct Drainage
Mi
Scale
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LAKE KEGONSA
STORET NO. 5520
I. CONCLUSIONS
A. Trophic Condition:
Survey data and the records of others show that Lake
Kegonsa is eutrophic.
B. Rate-Limiting Nutrient:
Algal assay and lake data indicate Lake Kegonsa is nitrogen
limited.
C. Nutrient Controllability:
1. Point sources--During the sampling year, Lake Kegonsa
received a total phosphorus load at a rate over 2˝ times that
suggested by Vollenweider (in press) as udangerousuu; i.e., a
eutrophic rate (see page 13). However, less than 3% of that
load was contributed by the Village of Cottage Grove, the only
known point source in the drainage. It is concluded that phos-
phorus control at Cottage Grove would not be expected to have
any significant effect on the trophic condition of the lake.
The estimates of septic tank contributions to Lake Kegonsa
may be too conservative, but a shoreline survey would have to be
done to determine the actual significance of these sources. It
appears that such a survey should include Lake Waubesa.
2. Non-point sources--It is calculated that the Yahara River
drainage contributed nearly 83% (37,180 ibs) of the total phosphorus
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2
load to Lake Kegonsa during the sampling year (see page 13). Of
this load, 95% (35,350 ibs) is attributable to the outlet of Lake
Waubesa. It is not known whether this load is the result of the
past effluent fertilization of Lake Waubesa or, as suggested by
Fitzgerald (1972), results from present sources of phosphorus.
Whatever the case may be, it seems evident that any significant
improvement in the existing trophic condition of Lake Kegonsa is
dependent on a marked reduction in the amount of phosphorus leaving
Lake Waubesa.
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II. INTRODUCTION
Lake Kegonsa is the last in a Dane County chain of four lakes that
are collectively known as the "Madison Lakes". All are located near
the City of Madison in the lower Rock River drainage of south central
Wisconsin. Severe algal blooms were reported in Lakes Mendota and
Monona as early as 1882 (Trelease, 1889), and the use of copper sulfate
to control algae was begun as early as 1918 (Mackenthun and Cooley, 1952)
Raw sewage from the City of Madison was discharged to Lake Mendota
and Monona from 1884 to 1889; but, with the completion of a treatment
plant in 1899, discharges to Mendota were discontinued, and in 1926 a
new treatment plant was put in use with effluent discharge via Nine-
Springs Creek to the Yahara River just upstream from Lake Waubesa (Saw-
yer, 1947). The discharge resulted in nuisance algae growths, odors,
and periodic fish kills in Lakes Waubesa and Kegonsa, and eventually
legislative and legal action forced the diversion of the effluent around
the lakes to Badfish Creek and thence to the Yahara River below Lake
Kegonsa (Mackenthun, Lueschow, and McNabb; 1960).
Evidently, the effluent diversion has resulted in an improvement of
the trophic condition of Lake Kegonsa. Sawyer (1971) stated, "...the
sewage treatment plant effluent was finally diverted from them [Waubesa
and Kegonsa]..., and the lakes have reverted to an acceptable level of
eutrophy..." However, in a recent report, Fitzgerald (1972) notes that
"...phosphorus is present in the lake [Kegonsa] in excess of that which
can be utilized by the dense growths of algae or aquatic weeds present,
and this situation has not changed since 1943 despite the diversion
around Lake Waubesa and Kegonsa...in 1958."
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4
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry*;
1. Surface area: 2,716 acres.
2. Mean depth: 17 feet.
3. Maximum depth: 29 feet.
4. Volume: 46,172 acre/feet.
5. Mean hydraulic retention time: 136 days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1 . Tributaries -
Name Drainage area’ Mean f1ow
Yahara River 331.0 mi 2 152.6 cfs
Door Creek 27.0 mi 2 9.5 cfs
Minor tributaries & 2
immediate drainage - 21.8 ml 9.2 cfs
Totals 379.8 m 1 2 171.3 cfs
2. Outlet -
Yahara River 384.0 ml?tT 171.3 cfs
C. Precipitationth:
1. Year of sampling: 37.7 inches.
2. Mean annual: 30.2 inches.
* Dept. of Natural Resources lake survey map (1955).
Drainage areas are accurate within ±0.5%; mean daily flows are accurate
within ±40%; mean monthly flows are accurate within ±35%; and nomalized
mean monthly flows are accurate within ±35%.
ft Includes area of lake.
iii See Working Paper No. 1, “Survey Methods”.
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5
IV. LAKE WATER QUALITY SUMMARY
Lake Kegonsa was sampled three times during the open-water season
of 1972 by means of a pontoon-equipped Hue.y helicopter. Each time,
samples for physical and chemical parameters were collected from three
stations on the lake and generally from a number of depths at two of
the stations (see map, page vi). During each visit, a single depth-
integrated (near bottom to surface) sample was composited from the
stations for phytoplankton identification and enumeration; and during
the last visit, a single five-gallon depth-integrated sample was corn-
posi ted 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 18 feet at station 2 and 6 feet at
station 3; only near-surface samples were taken at station 1
The results obtained are presented in full in Appendix B, and the
data for the fall sampling period, when the lake was essentially well-
mixed, are summarized below. Note, however, the Secchi disc summary
is based on all values.
For differences in the various parameters at the other sampling
times, refer to Appendix B.
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6
A. Physical and chemical characteristics:
FALL VALUES
(11/10/72)
Parameter Minimum ean Median Maximum
Temperature (Cent.) 6.4 6.6 6.7 6.7
Dissolved oxygen (mg/l) 10.0 11.1 11.2 11.7
Conductivity (pmhos) 420 431 430 440
pH (units) 8.3 8.7 8.8 8.8
Alkalinity (mg/l) 155 174 178 181
Total P (mg/i) 0.083 0.103 0.104 0.112
Dissolved P (mg/l) 0.053 0.065 0.068 0.070
NO + NO (mg/l) 0.210 0.237 0.220 0.280
An’ri onia mg/1) 0.160 0.171 0.170 0.190
ALL VALUES
Secchi disc (inches) 36 44 42 56
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7
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Number
Date Genera per ml
06/22/72 1. Anabaena 3,110
2. Oocystis 633
3. Melosira 235
4. Cyclotella 181
5. Polycystis 145
Other genera 542
Total 4,846
08/20/72 1 . Dinobryon 1 ,844
2. Polycystis 597
3. Anabaena 380
4. Fragilaria 307
5. Gloeocapsa 289
Other genera 1,719
Total 5,136
11/10/72 1 . Dinobryon 964
2. Flagellates 768
3. Anabaena 361
4. Scenedesmus 286
5. Cyclotella 271
Other genera 1 ,763
Total 4,413
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8
2. Chlorophyll a -
(Because of instrumentation problems during the 1972 sampling,
the following values may be in error by plus or minus 20
percent.)
Sampl ing
Date
06/22/72
Station
Number
01
02
03
01
02
03
01
02
03
Chlorophyll a
( ig/l)
11.5
30.1
27.6
25.1
36.4
19.1
49.4
16.5
62.2
Spike (mg/i )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/l )
Maximum yield
( mg/l-dry wt. )
08/20/72
11 / 1 0/72
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Control
0.006
0.012
0.024
0.060
0.060
10.0 N
P
P
P
p
P + 10.0 N
0.038
0.280
7.8
0.044
0.280
7.7
0.050
0.280
7.6
0.062
0.280
8.0
0.098
0.280
7.8
0.098
10.280
45.8
0.038
10.280
16.8
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum , indicated a high potential primary productivity
in the composite lake sample at the time of assay, in spite
of losses of about 5 pg/i of dissolved phosphorus and 130
pg/i of nitrogen from the time the sample was collected to
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9
the time the assay was begun. Had these losses not occurred,
the control yield probably would have been about 15 mg/i.
The increased yield with the addition of nitrogen alone,
and the lack of response to increasing levels of ortho-
phosphorus show that the assay sample was nitrogen limited.
A nitrogen/phosphorus ratio of 6/1 in the lake at the time
the assay sample was collected also indicates nitrogen limi-
tation. In addition, the lake appeared to be limited by nitro-
gen during the first two sampling periods as well (N/P ratios
were about 2/1 on both occasions).
D. Trophic Condition:
Survey data and the records of others show that Lake Kegonsa
is eutrophic. Survey limnologists observed heavy growths of
rooted aquatic vegetation in much of the lake.
Of the 44 Wisconsin lakes sampled in the fall, when essen-
tially all were well-mixed, 33 had less mean total phosphorus,
36 had less mean dissolved phosphorus, and 21 had less mean
inorganic nitrogen. For all data, 34 lakes had less mean
chlorophyll a, and 27 had a lower algal assay control yield.
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10
V. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Wisconsin National
Guard collected monthly near-surface grab samples from each of the tribu-
tary sites indicated on the map (page vi), except for the high runoff
months of April and May when two samples were collected. Sampling was
begun in September, 1972, and was completed in August, 1973.
Through an interagency agreement, stream flow estimates for the year
of sampling and a “normalized” or average year were provided by the
Wisconsin District Office of the U.S. Geological Survey for the tribu-
tary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer program
for calculating stream loadings*. Nutrient loadings for unsanipled “minor
tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were estimated by
using the mean concentrations in Halverson Creek at station D-l and the
mean annual ZZ flow.
The Village of Cottage Grove declined participation in the Survey, and
nutrient loads attributed to that source were estimated* and subtracted
from the loads calculated for Door Creek at station B-l
The wastes from the City of McFarland are treated in the Madison
Metropolitan Sewer District facilities.
* See Working Paper No. 1.
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A. Waste Sources:
1. Known municipal -
Pop. Mean Receiving
Name Served Treatment Flow (mgd) Water
Cottage 480* Stabiliza- 0.030** Door Creek
Grove tion Ponds
2. Industrial - None known
* McKersie, et al., 1971.
** Estimated; see Working Paper No. 1.
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12
B. Annual Total Phosphorus Loading - Average Year:
1 . Inputs —
lbs N/ %of
Source yr total
a. Tributaries (non-point load) -
Yahara River 37,180 82.8
Door Creek 2,530 5.6
b. Minor tributaries & immediate
drainage (non-point load) - 3,330 7.4
c. Known municipal STP’s -
Cottage Grove 1 ,200 2.7
d. Septic tanks* - 270 0.6
e. Industrial - None known -
f. Direct precipitation** - 420 0.9
Total 44,930 100.0
2. Outputs -
Lake outlet - Yahara River 43,460
3. Net annual P accumulation - 1,470 pounds
* Estimated 385 dwellings, 3 resorts, and 1 park on lakeshore; see
Working Paper No. 1.
** Estimated; see Working Paper No. 1.
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13
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs —
lbs NI % of
Source yr total
a. Tributaries (non-point load) -
Yahara River 451,370 66.7
Door Creek 125,310 18.5
b. Minor tributaries & immediate
drainage (non-point load) - 60,650 9.0
c. Known municipal STP’s -
Cottage Grove 3,600 0.5
d. Septic tanks* - 9,910 1.5
e. Industrial - None known - -
f. Direct precipitation** - 26,170 3.9
Total 677,010 100.0
2. Outputs —
Lake outlet - Yahara River 465,620
3. Net annual N accumulation - 211,390 pounds
* Estimated 385 dwellings, 3 resorts, and 1 park on lakeshore; see
Working Paper No. 1.
** Estimated; see Working Paper No. 1.
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D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary lbs P/m1 2 /yr lbs N/mi 2 /yr
Yahara River at A-2 112 1,364
Yahara River at A_3* 109 1 ,393
(outlet of L. Waubesa)
Door Creek 94 4,641
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (in press).
Essentially, his “dangerous” rate is the rate at which the
receiving waters would become eutrophic or remain eutrophic; his
“permissible” rate is that which would result in the receiving
water remaining oligotrophic or becoming oligotrophic if mor-
phometry permitted. A mesotrophic rate would be considered one
between “dangerous” and “permissible”.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
1bs/acr /yr 16.5 0.5 249.3 77.8
grams/m /yr 1.85 0.06 27.9 8.7
Volle weider loading rates for phosphorus
(g/m /yr) based on mean depth and mean
hydraulic retention time of Lake Kegonsa:
“Dangerous” (eutrophic rate) 0.72
“Permissible” (oligotrophic rate) 0.36
* Mean Survey concentrations x mean U.S.G.S. flow (41 years of record) and
drainage area at outlet of Lake Waubesa.
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VI. LITERATURE REVIEWED
Ball, Joseph R., 1974. Personal communication (volume of Lake Kegonsa;
lake survey map). Dept. of Natural Resources, Madison.
Fitzgerald, George P., 1972. Correlations between algal assays and
chemical analyses to evaluate the effects of wastewater phos-
phorus on receiving waters. EPA Project Report (Grant 16010 EHR),
U. of Wisc. Water Resources Center, Madison.
Ketelle, Martha J., and Paul D. Uttormark, 1971. Problem lakes of
the United States. EPA Water Poll. Contr. Res. Ser., Proj. 16010
EHR.
Lackey, James B., 1945. Plankton productivity of certain southeastern
Wisconsin lakes as related to fertilization. II. Productivity.
Sewage Works Jour., Vol. 17, No. 4.
Lawton, Gerald W., 1961. Limitation of nutrients as a step in eco-
logical control. Trans. Seminar on Algae & Metropolitan Wastes,
R. A. Taft San. Engr. Ctr. Pubi. SEC IR W61-3.
Lueschow, Lloyd A., 1972. Biology and control of selected aquatic
nuisances in recreational waters. Techn. Bull. #57, Dept. of
Natural Resources, Madison.
Mackenthun, Kenneth M., and Harold L. Cooley, 1952. The biological
effect of copper sulfate treatment on lake ecology. Trans. Wisc.
Acad. Arts, Sci., & Ltrs., Vol. 41.
Mackenthun, Kenneth M., and Lloyd A. Lueschow, and Clarence 0. McNabb;
1960. A study of the effects of diverting the effluent from
sewage treatment upon the receiving stream. Trans. Wisc. Acad.
Arts, Sci., & Ltrs., Vol. 49.
McKersie, Jerome R., Robert M. Krill, Floyd F. Stautz, Thomas Kroehn,
and Richard Narf; 1971 . Lower Rock River pollution investigation
survey. Dept. of Natural Resources, Madison.
Poff, Ronald J., and C. W. Threinen, 1962. Surface water resources
of Dane County. Conservation Dept., Madison.
Sarles, William B., 1961. Madison’s Lakes: must urbanization destroy
their beauty and productivity? Trans. Seminar on Algae & Metro-
politan Wastes, R. A. Taft San. Engr. Ctr. Pubi . SEC TR W61-3.
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16
Sawyer, Clair N., 1971. ABC’s of cultural eutrophication and its
control: part 2--wastewaters. Water & Sewage Works Journ.,
Oct., 1971.
_______________ 1947. Fertilization of lakes by agricultural and
urban drainage. New England Water Works Assoc., Vol. LXI, No. 2.
_______________ J. B. Lackey, and A. T. Lenz, 1945. An investi-
gation of the odor nuisance occurring in the Madison lakes,
particularly Monona, Waubesa, Kegonsa. Rept. of Governor’s
Committee, Madison (2 vols.).
Trelease, William, 1889. The working of the Madison lakes. Wisc.
Acad. Arts, Sci., & Ltrs., Vol. 7.
Vollenweider, Richard A., (in press). Input-output models. Schweiz
A. Hydrol.
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VII. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
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TRIBUTARY FLOW INFORMATION FOR WISCONSIN 9/30/74
LAKE CODE 5520 LAKE KEGONSA
TOTAL DRAINAGE AREA OF LAKE 384.00
SUB-DRAINAGE NORMALIZED FLOWS
TRIBUTARY AREA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN
5520A1 384.00 142.20 170.60 293.80 312.80 199.00 151.70 142.20 123.20 104.30 123.20 151.70 142.20 171.32
5520A2 331.00 120.00 150.00 270.00 280.00 180.00 140.00 130.00 110.00 92.00 110.00 130.00 120.00 152.60
552081 27.00 5.40 7.60 27.00 25.00 11.00 7.00 6.40 4.60 4.00 4.70 6.20 5.40 9.53
5520ZZ 26.00 5.30 7.30 26.00 24.00 11.00 6.80 6.10 4.40 3.80 4.30 5.90 5.30 9.19
SUMMARY
TOTAL DRAINAGE AREA OF LAKE z 384.00 TOTAL FLOW IN = 2056.50
SUM OF SUB—DRAINAGE AREAS • 384.00 TOTAL FLOW OUT = 2056.90
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
S 520A1 9 72 160.00 23 200.00
10 72 170.00 14 160.00
11 72 210.00
12 72 170.00 10 160.00
1 73 240.00
2 73 270.00 11 250.00
3 73 500.00 11 570.00
4 73 530.00 14 500.00 28 530.00
5 73 520.00 12 570.00 28 470.00
6 73 300.00 9 320.00
7 73 270.00 15 270.00
8 73 230.00 12 240.00
5520A2 9 72 130.00 23 170.00
10 72 140.00 14 130.00
11 72 170.00
12 72 150.00 10 140.00
1 73 200.00
2 73 230.00 11 210.00
3 73 440.00 11 500.00
4 73 450.00 14 440.00 28 450.00
5 73 440.00 12 490.00 28 400.00
6 73 250.00 9 260.00
7 73 220.00 15 220.00
8 73 190.00 12 200.00
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TRIBUTARY FLOW INFORMATION FOR WISCONSIN 9/30/74
LAI E CODE 5520 LAKE KEGONSA
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIRUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
552081 72 5.80 23 7.60
10 72 6.70 14 6.00
11 72 7.80
12 72 6.60 10 6.20
1 73 8.70
2 73 11.00 11 10.00
3 73 44.00 11 50.00
4 73 40.00 14 38.00 28 40.00
5 73 29.00 12 32.00 28 25.00
6 73 13.00 9 14.00
7 73 11.00 15 11.00
8 73 8.20 12 8.70
5520ZZ 9 72 5.60 23 7.20
10 72 f.40 14 5.80
11 72 7.40
12 72 6.20 10 6.00
1 73 8.20
2 73 11.00 11 10.00
3 73 42.00 11 48.00
4 73 38.00 14 37.00 28 38.00
5 73 28.00 12 30.00 28 24.00
6 73 12.00 9 13.00
7 73 11.00 15 11.00
8 73 7.80 12 8.40
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APPENDIX B
PHYSICAL and CHEMICAL DATA
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STORET RETRIEVAL DATE 74/09/30
552001
42 58 30.0 089 15 30.0
KEGONSA LAKE
55 WISCONSIN
1 1EPALES 2111202
5 0004 FEET DEPTH
00010 00300 00077 00094 00400 00410 00630 00610 00665 00666
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK N02&N03 NH3—N PHOS—TOT PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 N—TOTAL TOTAL
TO DAY FEET CENT MG/L INCHES MICRONHO SU MG/I MG/L MG/I MG/L P MG/L P
72/06/22 15 20 0000 21.5 12.2 48 360 9.30 170 0.060 0.04G 0.096 0.078
72/08/20 09 55 0000 26.4 4.7 370 9.00 135 0.130 0.200 0.138 0.093
7?/11/1O 11 50 0000 10.0 36 440 8.30 155 0.220 0.170 0.083 0.068
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/L
72/06/22 15 20 0000 I1.5J
72/08/20 09 SS 0000 25.1J
72/11/10 11 50 0000 49.4J
J VALUE K JOW 1 TO E I ’4 ER O
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STORET RETRIEVAL DATE 74/09/30
DATE
FROM
TO
72/06/2?
72/08/20
72/11/10
TIME DEPTH
0F
DAY FEET
15 40 0000
10 05 0000
12 10 0000
32217
CHLRPHYL
A
UG/L
30. 1J
36 • 4J
16 • SJ
552002
42 58 00.0 089 14 00.0
LAKE KEGONSA
55 WISCONSIN
1 1EPALES
5
2111202
0010 FEET
DEPTH
00010
00300
00077
00094
00400
00410
00630
00610
PHOS—TOT
PHOS—DIS
DATE
TIME
DEPTH
WATER
DO
TRANSP
CNOIJCTVY
PH
1 ALK
NO2 NO3
NH3—N
FROM
OF
TEMP
SECCHI
FIELD
CACO3
N-TOTAL
MG/L P
HG/L P
TO
DAY
FEET
CENT
MG/L
INCHES
MICROUHO
51 .1
HG/L
MG/L
MG/L
7?/Of/22
15 40 0000
20.3
9.4
390
8.90
180
0.060
0.110
0.119
0.130
0.079
0.082
15 40 0009
20.3
9.5
380
8.90
183
0.060
0.070
0.110
0.070
0.476
0.113
72/08/20
10 05 0000
36
390
9.00
160
0.160
0.113
10 05 0004
24.7
8.5
390
9.00
160
0.060
0.109
0.069
72/11/10
12 10 0000
56
430
8.80
181
0.250
0.106
0.068
12 10 0004
6.7
11.2
430
8.80
178
0.210
0.170
0.104
0.070
12 10 0012
6.7
11.2
420
8.80
180
0.220
J VALUE KNOWN TO E IN ERROR
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STORET RETRIEVAL DATE 74/09/30
552003
42 57 30.0 089 16 30.0
KEGONSA LAKE
55 WISCONSIN
11EPALES 2111202
5 0004 FEET DEPTH
00010 00300 00077 00094 00400 00410 00630 00610 00665 00666
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK N026N03 NH3—N PHOS—TOT PPIOS—OIS
FROM OF TEMP SECCI4I FIELD CACO3 N—TOTAL TOTAL
TO DAY FEET CENT MG/L INCHES MICROMMO SU MG/L MG/L MG/L MG/L P MG/L P
72/06/22 16 00 0000 21.6 12.6 36 370 9.10 180 0.060 0.080 0.122 0.105
72/08/20 10 20 0000 42 390 9.10 162 0.080 0.090 0.142 0.119
10 20 0004 25.8 10.2 390 9.10 160 0.090 0.090 0.143 0.108
7?/1I/1O 11 55 0000 54 440 8.80 178 0.280 0.180 0.103 0.053
11 55 0006 6.4 11.7 440 8.80 170 0.270 0.170 0.104 0.057
32217
DATE TIME DEPTH CHLPPHYL
FROM OF A
TO DAY FEET UG/L
72/06/2? 16 00 0000 27.6J
72/08/20 10 20 0000 19.1J
77/11/10 11 S5 0000 62.2J
J VALUE KNOWN TO ‘-SE IN PPO’
-------
APPENDIX C
TRIBUTARY DATA
-------
STORET RETRIEVAL DATE 74/10/02
5570A1 LS S52OAI
4? 58 00.0 089 13 30.0
YA’-1A A RIVE
55 15 STO(JGHTON
0/LAKE KEGONSA
Co PD BROG 3 MI N OF STOUGHTON
11E ALFS 2111204
4 0000 FEET DEPTH
00630 00625 006)0 00671 00665
DATE TIME DEPTH NO? NO3 TOT KJEL NH3-N PHOS-DIS PHOS-TOT
FROM OF ‘1—T0TAL N TOTAL ORTHO
TO DAY FEET MG/L Mc/L MG/L MC /L P MC’/L P
7?/09/73 10 ?3 0,076 0.950 fl.083 0.065 0,120
7?/1O/14 14 1? 0.065 1.?00 0.090 0.075 0.150
72/11/11 14 05 0.189 1.700 0.096 0.056 0.130
72/12/10 10 30 0.25? 0.940 0.019 0.032 0.054
71/01/14 10 00 0.210 1.100 0.044 0.019 0.075
73/02/11 1’. 06 0.052 1.100 0.013 0.011 0.070
71/03/11 14 45 0.168 0.920 0.052 0.026 0.07’ ,
71/04/14 15 00 0.560 1.600 0.029 0.025 0.120
73/04/2 09 10 0.520 1.150 0.056 0.029 0.0 0
73/05/12 10 30 0.6Y0 1.050 0.092 0.067 0.125
73/05/28 09 15 O.46C 1.000 0.088 0.06? 0.115
73/06/09 1? 47 0.240 0.054 0.026 0.100
71/07/15 10 15 0.010K 1.200 0.021 0.154 0.230
73/08/1? 13 50 0.016 0.660 0.550 0.189 0.220
K VALUE r’NO N TO BE LESS
THLN Ir’DrcATEL)
-------
ST3RET RETRIEVAL DATE 74/10/0?
5520A? LS5520A2
42 59 00.0 089 16 00.0
YAHARA RIVER
55 15 EVANSVILLE
I/LM(E KEGONSA
Co HWY AB HI DG 8ELO MCFARLAND STP
11EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPT’l NO2 NO3 TOT , JEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N-TOTAL N TOTAL ORTPI()
TO DAY FEET MG/L ‘ G/L MG/L MC /L P MG/L P
72/09/23 09 40 0.080 1.050 0.089 0.032 0.080
7?/10/14 15 00 0.065 1.050 0.064 0.046 0.0R
72/11/11 14 25 0.176 0.890 0.115 0.071 0.105
72/12/10 I I 00 0.240 0. 60 0.038 0.036 0.064
73/01/14 10 40 0.280 0.815 0.036 0.033 0.110
73/02/11 14 41 0.176 1.150 0.035 0.024 0.070
73/03/11 14 00 0.310 1.100 0.220 0.06 0.120
73/34/14 15 30 0.480 2.300 0.052 0.050 0.130
71/04/28 09 25 0.420 1.470 0.044 0.078 0.100
73/05/12 10 50 0.510 0.960 0.029 0.078 0.120
73/05/28 10 15 0.410 1.150 0.200 0.098 0.13
73/06/09 13 10 0.240 2.000 0.091 0.147 0.200
73/07/15 10 35 0.078 0.840 0.037 0.120 0.175
73/08/1? 14 10 0.570 0.730 0.023 0.120 0.150
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ST )PET RFTRIEVAL DATE 74/10/02
55?0A3 LS5520A3
43 00 30.0 089 18 30.0
YA-IARA F IVER
55 15 MADISON
I/LA
-------
STORET RETRIEVAL DATE 74/10/02
5520t31 L55S20 81
43 01 00.0 089 14 00.0
DOOR CREEK
55 15 SUN PRAWIE
1/LAKE KEGONSA
Co HWY MN 3 MI E O MCFARLAND
11EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2 NO3 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF -TOTAL N TOTAL OPTHO
TO DAY FEET MG ’L MG/L MG/L MG/L P MG/L P
7/09/23 09 55 1.595 1.350 0.124 0.094 0.138
7?/10/14 14 45 1.040 0.550 0.090 0.05? 0.087
7?/l1/11 14 15 3.400 1.100 .092 0.046 0.08?
7?/12/1O 10 45 3.900 1.260 0.069 0.046 0.138
73/01/14 10 25 4.500 0.500 0.110 0.062 0.100
73/32/11 14 26 6.800 1.600 0.120 0.042 (,.095
73/03/11 14 15 8.000 7.400 0.610 0.240 0.975
73/G4/14 15 20 8.700 3.000 0.100 0.056 0.125
73/04/28 09 15 5.900 1.650 0.069 0.04 0.080
73/OS/i? 10 45 5.600 1.800 0.085 0.063 0.120
73/05/28 09 45 3.100 3.100 0.086 0.144 0.425
73/06/09 13 00 3.600 2.700 0.154 0.044 0.120
73/07/iS 10 00 4.000 0.690 ( .061 0.062 0.120
73/08/12 14 00 3.800 1.700 0.012 0.070 0.100
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STORE! RETRIEVAL O4TE 74/10/02
55?OC1 LS S52OC1
4 58 00.0 089 13 00.0
UNNAMED CREEK
55 15 STOUGHTON
T/LAKE KEGONSA
Co RD HRDG .25 MI NW LAFOLLETTE Co PARK
11EPALES 2111204
0000 FEET DEPTr4
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL OPTHO
TO DAY FEET McI/L MG/L MG/L MG/L P MG/L P
7?/09/?3 10 1? 0.311 1.250 0.?20 0.075 0.168
7?/10/14 15 30 1.500 1.600 0.096 0.070 0.220
7?/1I/1! 14 10 1.400 1.200 0.100 0.071 0.160
7?/i?/10 10 35 3.000 ?.900 0.130 0.063 0.270
73/01/14 10 10 3.300 0.?30 0.126 0.030 0.045
73/0?/11 14 16 2.500 1.260 0.280 0.050 0.087
73/03/11 14 30 1.260 2.600 0.360 0.230 0.480
73/04/14 15 12 1.040 2.500 0.130 0.080 0.d l O
73/04/28 09 10 1.660 3.200 0.160 0.126 0.200
73/05/12 10 40 1.500 1.470 0.115 0.180 0.390
73/05/28 09 30 0.580 3.000 0.074 0.140 0.490
73/06/09 12 50 2.003 3.360 0.16 0.089 0.300
73/07/15 10 ‘0 2.800 1.400 0.100 0.067 0.130
73/08/12 14 55 ?.700 0.340 0.018 0.084 0.140
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STORET RETRIEVAL DATE 74/10/02
552001 LS5520 01
42 57 30.0 089 17 00.0
UNNAMED CREEK
55 15 EVANSVILLE
T/LAKE KEGONSA
USS1 BPDG SW CORNEP OF LAKE
11EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2F NO3 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N-TOTAL N TOTAL OPTHO
TO DAy FEET MG/L MG/I MG/L MG/L P MG/L P
7/09/23 10 40 1.170 0.300 0.076 0.077 0.132
7?/1)/11 13 50 0.890 0.860 0.048 0.0 9 0.189
72/12/10 10 15 3.600 1.050 0.039 0.036 0.06
71/01/14 11 05 3.600 0.100K 0.050 0.020 0.055
73/02/11 13 40 3.500 0.230 0.082 0.04R 0.075
73/03/11 15 10 1.640 3.100 0.570 0.310 0.775
71/04/14 15 45 2.100 2.100 u.130 0.100 0.210
73/04/28 09 00 3.500 1.050 0.037 0.040 0.067
73/05/12 10 20 1.700 0.480 0.040 0.063 0.10
73/05/28 09 00 2.080 0.940 0.069 0.088 0.200
71/07/15 10 10 3.100 0.480 0.050 0.063 0.115
73/08/1? 13 40 0.490 0.480 0.198 0.170 0.220
K VALUE KNOWN TO BE LESS
THAN INDICATED
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