U.S. ENVIRONMENTAL PROTECTION AGENCY
        NATIONAL EUTROPHICATION SURVEY
                  WORKING PAPER SERIES
                                        REPORT
                                         ON
                                      LAKE WAUSAU
                                    MARATHON COUNTY
                                      WISCONSIN
                                      EPA REGION V
                                  WORKING PAPER No, 55
   PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
                  An Associate Laboratory of the
      NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
                           and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA

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                                    REPORT
                                      ON
                                 LAKE WAUSAU
                               MARATHON COUNTY
                                  WISCONSIN
                                 EPA REGION V
                             WORKING PAPER No, 55
       WITH THE COOPERATION OF THE
WISCONSIN DEPARTMENT OF NATURAL RESOURCES
                 AND THE
        WISCONSIN NATIONAL GUARD
             NOVEMBER, 1974

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1
CONTENT S
Page
Foreword
List of Wisconsin Study Lakes iv, v
Lake and Drainage Area Maps Vi, Vii
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 15
VII. Appendices 16

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11
FOREWO RD
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 [ 314(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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iii
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation’s
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
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 Wisconsin
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
Geneva Walworth
Grand Green Lake
Green Green Lake
Kegonsa Dane
Koshkonong Jefferson, Rock, Dane
Lac La Belle Waukesha
Middle Walworth
Nagawicka Waukesha
Oconomowoc Waukesha
Okauchee Waukesha
Petenwell Flowage Juneau
Pewaukee Waukesha
Pigeon Waupaca
Pine Waukesha
Poygari Winnebago, Waushara
Rock Jefferson
Rome Pond Jefferson, Waukesha
Round Waupaca
Shawano Shawario

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V
LAKE NAME COUNTY
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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LAKE WAUSAU
Tributary Sampling Site
Lake Sampling Site
Sewage Treatment Facility
Direct Drainage Area Limits
Map Location
LANGLADECO.
1L
Scale

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LAKE WAUSAU
Tributary Sampling Site
Lake Sampling Site
Wisconsin
1 t Location

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LAKE WAUSAtJ
STORET NO. 5551
I. CONCLUSIONS
A. Trophic Condition:
Survey data show that Lake Wausau is eutrophic.
B. Rate-Limiting Nutrient:
The algal assay results indicate that phosphorus was
limiting at the time the sample was collected in November,
1972. However, the lake data indicate nitrogen limitation
at the other sampling times.
C. Nutrient Controllability:
During the sampling year, there was an unexpected loss
of both phosphorus and nitrogen from Lake Wausau; i.e., about
39% more phosphorus (308,000 ibs) and 23% more nitrogen (2,150,-
000 ibs) were measured leaving the lake at the outlet station
(A-i; see map, page vi) than can be accounted for by all
measured and estimated inputs.
The cause of this marked nutrient imbalance is not known,
but it is unlikely that a nutrient wash-out occurred or that
a direct-discharge point-source of that magnitude was overlooked.
Also, there is no indication that there was any unusual operation
of the Rothschild dam such that flushing could have occurred
during the sampling year (Schraufnagel, 1974).
Considering the input phosphorus loads only, it does not
appear that phosphorus control at the point sources included in

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2
the Survey would result in a significant improvement of the
trophic condition of Lake Wausau. However, the nutrient
imbalance noted above points to a need for a more detailed
study before an assessment of effect of phosphorus control
is made.

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II.   INTRODUCTION
     Lake Wausau  is  an  impoundment  of  the  upper  Wisconsin  River  at  the
 Village of Rothschild.   According  to  the  Wisconsin  Department of Natural
 Resources (Anonymous,  1972),  Lake  Wausau  supports a game-fish popula-
 tion which includes muskellunge, northern pike, walleye,  bass,  and
 panfish.

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4
1,918 acres.
.3 feet.
30 feet.
6 acre/feet.
5. Mean hydraulic retention time: 2 days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name
Wisconsin River
Big Rib River
Little Rib River (joins Big
Rib west of Lake Wausau)
Eau Claire River
Minor tributaries &
immediate drainage -
Totals
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometryt:
1. Surface area:
2. Mean depth: 7
3. Maximum depth:
4. Volume: 13,91
Drainage area*
3,080.0 mi
388.0 ml
78.0 mi
403.0 mi
48.0 mi 2
3,997.0 mi 2
Mean flow*
2,792.9 cfs
316.8 cfs
59.3 cfs
337.9 cfs
38.5 cfs
3,545.4 cfs
2. Outlet -
Wisconsin River 4,000.0 mi 2 ** 3,545 4 cfs
C. Precipitation***:
1. Year of sampling: 31.7 inches.
2. Mean annual: 28.9 inches.
-1- Dept. of Natural Resources lake survey map (1973).
* Drainage areas are accurate within ±0.5%; mean daily flow are accurate
within ±40%; mean monthly flows are accurate within ±35%; and normalized
monthly flows are accurate within ±35%.
** Includes area of lake.
*** See Working Paper No. 1, “Survey Methods”.

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5
IV. LAKE WATER QUALITY SUMMARY
Lake Wausau was sampled three times during the open-water season of
1972 by means of a pontoon-equipped Huey helicopter. Each time, samples
for physical and chemical parameters were collected from two stations on
the lake and usually from a number of depths at each station (see map,
page vii). 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 five-gallon
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 15 feet at sta-
tion 1 and 5 feet at station 2.
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
(11/08/72)
Parameter Minimum Mean Median Maximum
Temperature (Cent.) 4.4 4.5 4.5 4.5
Dissolved oxygen (mg/i) 11.4 11.6 11.5 12.0
Conductivity (pmhos) 70 72 70 75
pH (units) 7.1 7.2 7.2 7.2
Alkalinity (mg/i) 17 19 19 20
Total P (mg/i) 0.040 0.042 0.041 0.045
Dissolved P (mg/i) 0.019 0.021 0.022 0.023
NO + NO (mg/i) 0.180 0.240 0.260 0.290
Am onia mg/i) 0.100 0.110 0.100 0.130
ALL VALUES
Secchi disc (inches)
18 29
30 36

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7
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Number
Date Genera per ml
06/23/72 1. Melosira 271
2. Flagellates 217
3. Stephanodiscus 187
4. Lyngbya 151
5. Dinobryon 96
6. Cyclotella 96
Other genera 252
Total 1 ,270
08/23/72 1. Flagellates 416
2. Tribronema with Lagynion 398
3. Lyngbya 271
4. Cyclotella 145
5. Dinobryon 108
6. Navicula 108
7. Synedra 108
Other genera 300
Total 1 ,854
11/08/72 1.. Lyngbya 4,376
2. Flagellates 271
3. Raphidiopsis 163
4. Navicula 99
5. Fragilaria 90
Other genera 227
Total 5,226

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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.)
Sampling
Station
Chlorophyll
Date
Number
(pg/i)
a
06/23/72 01
02
08/23/72 01
02
11/08/72 01
02
1. Filtered and nutrient spiked* -
Spike (mg/i )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/i )
Maximum yield
( mg/i—dry wt. )
* An autoclaved and filtered assay was
growth response of the test alga was
considerable variance in cell counts
When rerun, only enough of the assay
filtered-only assay.
done initially; however, the
atypical (i.e., there was
between the triplicate flasks).
sample remained to do a
C. Limiting Nutrient Study:
14.7
6.5
2.0
2.5
2.0
2.3
Control
0.010
0.020
0.050
0.025
0.050
10.0 N
P
P
P
P + 5.0 N
P + 10.0 N
0.022
0.258
5.2
0.032
0.258
7.4
0.042
0.258
8.2
0.072
0.258
9.2
0.047
5.258
17.8
0.072
10.258
26.1
0.022
10.258
5.2

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9
2. Discussion —
The control yield of the assay alga, Selenastrum
capricornutum , indicates that the primary productivity
of the lake was high at the time the sample was collected
(22 of the 44 Wisconsin study lakes assayed had less
control yield). Also, the increase in yields with in-
creasing increments of orthophosphorus, and the lack of
growth response when only nitrogen was added, show that
Lake Wausau was phosphorus limited at that time. However,
the lake data indicate nitrogen limitation at the other
sampling times; N/P ratios were 7/1 in June and 9/1 in
August, and nitrogen limitation would be expected.
D. Trophic Condition:
Survey data indicate that Lake Wausau is eutrophic. Of
the 46 Wisconsin lakes studied, 20 had less mean total phos-
phorus, 25 had less mean dissolved phosphorus, and 29 had less
mean inorganic nitrogen.
Only seven of the study lakes had less mean chlorophyll a,
but 35 of the lakes had greater mean Secchi disc transparency.
The Survey limnologists noted that the lake was very turbid
and humic colored on all sampling occasions, and the relatively
low chlorophyll a concentrations may have been due to light
limitation.

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10
V. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Wisconsin National
Guard collected a monthly near-surface grab sample 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 determined
by using a modification of a U.S. Geological Survey computer program for
calculating stream loadings* Nutrient loadings for unsampled “minor
tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were estimated
by using the means of the nutrient loads, in lbs/mi 2 /year, at stations
A-2, B-i, 0—1, and E-l and multiplying by the ZZ area in mi 2 .
The operators of the Wausau, Brokaw, and Marathon wastewater treatment
plants provided monthly effluent samples and corresponding flow data from
which nutrient loads were calculated. However, the Village of Edgar and
the cities of Antigo and Merrill did not participate in the Survey, and
nutrient loads were estimated at 2.5 lbs P and 7.5 lbs N/capita/year.
In the following tables, the tributary loads shown are those measured
minus point—source loads, if any.
* See Working Paper No. 1.

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11
A. Waste Sources:
1. Known municipal —
Pop. Mean Receiving
Name Served* Treatment Flow (mgd) Water
Merrill 9,502 Primary** 1.500 Wisconsin River
Wausau 32,806 Act. Sludge 7.618 Lake Wausau
Brokaw 312 Trickling 0.026 Wisconsin River
filter 1-
Edgar 928 Trickling 0.150 Scotch Creek
filter 1-
Marathon 1,214 Act. Sludge O.l5O. . Big Rib River
Antigo 9,005 Trickling 1.109 Spring Brook
filter
2. Known industrialt -
Mean Receiving
Name Product Treatment Flow (mgd) Water
Wausau paper Fluidized 10.130 Wisconsin River
Paper bed and
Mills settling
Ward paper Filters and 1.060 Wisconsin River
Paper Co. savealls
Merrill plating Evaporation 0.063 Wisconsin River
Mfy.
* 1970 Census.
** Activated sludge plant under construction during Survey.
t McKersie, et al., 1970.

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12
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs —
lbs P/ % of
Source yr total
a. Tributaries (non—point load) -
Wisconsin River 274,470 56.5
Big Rib River 37,510 7.7
Little Rib River 3,160 0.7
Eau Claire River 50,590 10.4
b. Minor tributaries & immediate
drainage (non—point load) - 4,180 0.9
c. Known municipal -
Wausau 64,860 13.3
Merrill 23,760 4.9
Brokaw 530 0.1
Marathon 1 ,840 0.4
Edgar 2,320 0.5
Antigo 22,510 4.6
d. Septic tanks* - 80 <0.1
e. Known industrial -
Merrill Manufacturing ? -
Wausau Paper Mills ? -
Ward Paper Company ? -
f. Direct precipitation** - 300 < 0.1
Total 486,110 100.0
2. Outputs —
Lake outlet - Wisconsin River 794,170
3. Net annual P loss - 308,060 pounds
* Estimated 122 residences on lakeshore; see Working Paper No. 1.
** 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) -
Wisconsin River 5,036,490 64.8
Big Rib River 894,430 fl.5
Little Rib River 182,290 2.3
Eau Claire River 887,550 11.4
b. Minor tributaries & immediate
drainage (non-point load) - 101,750 1.3
c. Known municipal -
Wausau 494,020 6.4
Merrill 71,260 0.9
Brokaw 2,250 <0.1
Marathon 7,510 0.1
Edgar 6,960 0.1
Antigo 67,540 0.9
d. Septic tanks* — 2,870 <0.1
e. Known industrial -
Merrill Manufacturing ? -
Wausau Paper Mills ? -
Ward Paper Company ? -
f. Direct precipitation** - 18,480 0.2
Total 7,773,400 100.0
2. Outputs -
Lake outlet 9,922,230
3. Net annual N loss — 2,148,830 pounds
* Estimated 122 residences on lakeshore; see Working Paper No. 1.
** See Working Paper No. 1.

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14
D. Mean Annual Non-point Nutrient Export by Sub-drainage Area:
Tributary lbs P/mi 2 /yr lbs N/mi 2 /yr
Wisconsin River 89 1,635
Big Rib River 97 2,308
Little Rib River 41 2,337
Eau Claire 126 2,202
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 morphometry permitted. A mesotrophic rate would be con-
sidered one between “dangerous” and “permissible”.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
lbs/acr /yr 253.4 loss 4,053.0 loss
grams/m /yr 28.41 - 454.3 —
Volle 2 weider loading rates for phosphorus
(g/m /yr) based on mean depth and mean
hydraulic retention time of Lake Wausau:
“Dangerous” (eutrophic rate) 3.8
“Permissible” (oligotrophic rate) 1.9

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15
VI. LITERATURE REVIEWED
Anonymous, 1972. Wisconsin lakes. Pubi. 218-72, Dept. of Natural
Resources, Madi son.
McKersie, Jerome R., Robert M. Krill, William H. Doyle, and Larry
L. Maitbey, 1970. Upper Wisconsin River pollution investigation
survey. Dept. of Natural Resources, Madison.
Schraufnagel, Francis H., 1974. Personal communication (Lake Wausau
water level control). Dept. of Natural Resources, Madison.
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 5551 LAKE WAUSAU
TOTAL DRAINAGE AREA OF LAKE 4000.00
SUB-DRAINAGE NORMALIZED FLOWS
TRIBUTARY AREA JAN FEB MAR APR NAY JUN JUL AUG SEP OCT NOV DEC MEAN
5551A1 4000.00 2534.20 2313.80 4076.70 7712.50 5178.50 3636.00 3195.30 2424.10 3085.10 2864.80 2974.90 2534.10 3545.42
5S51A2 3080.00 1900.00 1900.00 2800.00 5100.00 4100.00 3300.00 2600.00 2200.00 2600.00 2600.00 2400.00 2000.00 2792.88
5551B1 388.00 120.00 93.00 380.00 1000.00 490.00 390.00 190.00 180.00 310.00 240.00 270.00 140.00 316.83
55 51D1 78.00 18.00 14.00 100.00 180.00 110.00 78.00 35.00 25.00 44.00 34.00 50.00 23.00 59.31
SS5IE I 403.00 120.00 97.00 390.00 1100.00 520.00 430.00 200.00 190.00 330.00 250.00 280.00 150.00 337.91
555 1ZZ 51.00 11.00 9.00 71.00 120.00 71.00 51.00 22.00 14.00 26.00 20.00 32.00 14.00 38.45
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 4000.00 TOTAL FLOW IN = 42532.00
SUM OF SUB—DRAINAGE AREAS = 4000.00 TOTAL FLOW OUT = 42529.98
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
55 51A1 9 72 6200.00 23 4100.00
10 72 6400.00 14 5400.00
11 72 6600.00
12 72 3200.00 10 3200.00
1 73 3790.00
2 73 2980.00 10 2900.00
3 73 13300.00 10 13000.00
4 73 9910.00 7 7130.00 20 12900.00
5 73 3100.00 5 19800.00 19 6960.00
6 73 4370.00 11 4590.00
7 73 2510.00 29 2150.00
8 73 2530.00 19 480.00
555 1A2 9 72 5600.00 23 3800.00
10 72 4700.00 14 3900.00
11 72 5000.00
12 72 2800.00 10 3100.00
1 73 2900.00
2 73 2600.00 10 2700.00
3 73 7200.00 10 4800.00
4 73 6400.00 7 5300.00 20 9600.00
5 73 9600.00 5 14000.00 19 5100.00
6 73 3500.00 11 3800.00
7 73 2200.00 29 2100.00
8 73 2200.00 19 2400.00

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TRIBUTARY FLOW INFORMATION FOR WISCONSIN
9/30/74
LAKE CODE 5551
LAKE WAUSAU
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY
FLOW DAY FLOW DAY
FLOW
9 72 640.00
10 72 520.00
II 72 500.00
12 72 210.00
73 330.00
2 73 210.00
3 73 1500.00
4 73 1000.00
5 73 1200.00
6 73 350.00
7 73 160.00
73 140.00
9 72 64.00
10 72 54.00
11 72 50.00
12 72 21.00
1 73 59.00
2 73 35.00
3 73 390.00
4 73 190.00
5 73 260.00
6 73 68.00
7 73 28.00
8 73 20.00
9 72 680.00
10 72 550.00
11 72 530.00
12 72 220.00
1 73 350.00
? 73 220.00
3 73 1500.00
4 73 1100.00
5 73 1200.00
6 73 370.00
7 73 160.00
8 73 150.00
9 72 35.00
10 72 28.00
11 72 27.00
12 72 11.00
1 73 32.00
2 73 21.00
3 73 270.00
4 73 120.00
5 73 170.00
6 73 44.00
7 73 17.00
8 73 12.00
23 260.00
I’. 350.00
10 190.00
10 180.00
10 2800.00
7 670.00
6 1300.00
11 370.00
29 150.00
17 120.00
23 26.00
14 35.00
10 19.00
10 28.00
10 750.00
7 120.00
5 410.00
11 72.00
29 26.00
19 33.00
23 280.00
14 370.00
10 200.00
10 190.00
10 2800.00
7 700.00
5 2000.00
11 380.00
29 150.00
19 260.00
23 14.00
14 19.00
10 10.00
10 17.00
10 530.00
7 76.00
5 280.00
11 47.00
29 17.00
19 20.00
20 1300.00
19 500.00
20 240.00
19 110.00
20 1300.00
19 510.00
20 150.00
6 180.00 19
5S5 18 1
555 1D 1
5551 (1
555 IZZ
72.00

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APPENDIX B
PHYSICAL and CHEMICAL DATA

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STORET RETRIEVAL DATE 74/09/30
555101
44 53 48.0 089 37 24.0
LAKE WAUSAU
55 WISCONSIN
1 1EPALES
3
2111202
0018 FEET DEPTH
DATE
FROM
TO
72/06/23
72/08/23
72/1 I/OR
TIME DEPTH
OF
DAY FEET
16 20 0000
11 10 0000
II 45 0000
32217
CHLRPHYL
A
UG/L
14.7J
2.OJ
2. OJ
00010
00300
00077
00094
00400
00410
00630
00610
00665
00666
DATE
TIME
DEPTH
WATER
DO
TRANSP
CNDUCTVY
PH
1 ALK
NO2 NO3
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/L
HG/I
MG/I ..
HG/I P
MG/L P
72/06/23
16 20 0000
19.2
7.3
36
110
7.20
27
0.160
0.120
0.059
0.045
- -
16 20 0015
19.2
6.6
100
7.10
27
0.160
0.140
0.060
0.044
72/08/23
11 10 0000
33
93
6.80
29
0.300
0.150
0.095
0.064
11 10 0004
19.4
92
6.80
28
0.340
0.190
0.099
0.074
11 10 0010
19.4
4.9
92
6.72
27
0.340
0.180
0.098
0.063
11 10 0015
19.3
4.6
92
6.75
22
0.320
0.140
0.097
0.054
72/H/OR
11 45 0000
18
75
7.20
19
0.270
0.100
0.045
0.022
11 45 0004
4.5
11.5
75
7.20
20
0.260
0.100
0.041
0.023
11 45 0007
4.5
11.4
70
7.10
19
0.290
0.120
0.044
0.022
J VALUE KNOWN TO BE IN ERROR

-------
STORET RETRIEVAL DATE 74/09/30
555102
44 56 06.0 089 38 18.0
LAKE WAUSAU
55 WISCONSIN
7?/06/23 16 40
72/0 /23 10 55
10 55
7/11/0 12 00
12 00
0000
0000
0004
0000
0005
7.0 36
26
5.8
12.0
23
DATE
FROM
TO
32217
DEPTH CHLRPHYL
A
UG/L
16 40 0000
10 55 0000
12 00 0000
6.SJ
2.SJ
2. 3J
1 1EPALES
2111202
3
0008 FEET
00010
00300
00077
00094
00400
00410
00630
00610
00665
00666
DATE
TIME
DEPTH
WATER
DO
TRANSP
CNDUCTVY
PH
1
ALK
NO2&N03
NH3—N
PHOS—TOT
PHOS—DIS
FROM
OF
TEMP
SECCHI
FIELD
CACO3
N—TOTAL
TOTAL
TO
DAY
FEET
CENT
MG/L
INCHES
MICROMNO
SU
MG/L
MG/L
MG/L
MG/L P
MG/L P
20.0
19.5
4.4
TIME
OF
DAY FEET
80
7.20
24
0.180
0.050
0.048
0.031
88
6.75
19
0.360
0.090
0.073
0.032
88
6.70
18
0.330
0.070
0.072
0.034
70
7.20
17
0.180
0.100
0.041
0.019
70
7.20
18
0.200
0.130
0.040
0.020
72/06/23
72/08/23
72/ I 1/08
J VALUE KNOWN TO BE IN ERROR

-------
APPENDIX C
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA

-------
STDRET RETRIEVAL DATE 74/10/02
5551A1 LS5S5IA I
44 53 00.0 089 38 30.0
WISCONSIN RIVER
55 15 WAUSAU
0/LAKE WAUSAU
AT ROTHSCHILD DAM 3 MI S BEL WAUSAU STP
11EPALES 2111204
4 0000 FEET DEPTH
00630 006?5 006)0 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3-N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MG/L UG/L M&/L MG/L P MG/L P
72/09/23 10 25 0.300 1.000 0.070 0.005K 0.09
7?/10/14 09 30 0.440 1.250 0.154 0.039 0.091
7?/1)/11 09 10 0.240 0.840 0.052 0.036 0.075
7?/1?/10 09 45 0.300 1.320 0.280 0.092 0.168
73/01/13 14 ?0 0.310 1.300 0.430 0.120 0.180
71/02/10 11 15 0.330 1. 90 0.900 0.190 0.270
73/03/10 10 50 0.440 1.260 0.320 0.056 0.133
73/04/07 10 30 0.?40 0.880 0.138 0.038 0.070
73/04/20 08 30 0.170 0.750 0.073 0.022 0.065
73/05/05 09 55 0.132 1.980 0.063 0.021 0.060
71/oS/lq 08 70 0.110 0.780 0.096 0.012 0.055
71/06/11 13 15 0.160 1.150 0.170 0.015 0.070
73/07/29 09 50 0.1 . 9 0.900 0.005K 0.025 0.090
73/08/19 14 12 0.065 0.840 0.030 0.034 0.1?5
K VAL(Jr NOWN TO r E LE’,S
TH N I”JDICATED

-------
STORET RETRIEVAL DATE 74/10/02
5551 42
44 57 30.0 089 38
WISCONSIN RIVEP
55 15 WAUSAU
I/LAKF WAUSAU
ST HWY 29 BROG IN
I IEPALES
4
LS5551A2
00 • 0
WAUSAU ABOVE SIP
2111204
0000 FEET DEPTH
00630
00625
00610
00671
00665
OATE
TIME
DEPTH
NO7&N03
TOT KJEL
NH3—N
PHOS—DIS
PHOS—TOT
FROM
‘ 4—TOTAL
N
TOTAL
ORTHO
TO
DAY
FEET
MG/L
HG/L
MG/L
MG/I P
MG/L P
7?/09/23
1?
4?
0.140
.000
0.041
0.005K
0.061
72/10/14
09
00
0.330
0.670
0.019
0.100
7?/11/11
10
00
0.140
0.750
0.046
0.013
0.042
72/ld/10
10
35
O.i 0
0.930
0.078
0.014
0.058
71/01/13
14
45
0.210
0.630
0.098
0.021
0.040
71/02/10
11
45
0.250
1.150
0.120
0.017
0.040
73/01/10
11
25
0.330
0.860
0.170
0.038
0.070
71/04/07
10
50
0.160
0.690
0.075
0.012
0.040
71/04/20
08
55
0.099
0.520
0.043
0.007
0.045
71/OS/OS
08
iS
0.063
0.660
0.028
0.014
0.045
73/05/19
08
00
0.061
0.600
0.008
0.006
0.035
73/06/11
12
50
0.105
0.690
0.038
0.007
0.045
73/07/29
09
?5
0.084
0.630
0.012
0.00 5K
0.055
71/08/19
12
30
0.083
0.610
0.037
0.015
0.050
r3E LE- S
I VALUi Y\jU JN TO
f-LW IrJDIC. TEO

-------
STDQET l ETRIEVAL DATE 74/10/02
5551A3 LS5551A3
45 00 30.0 089 37 00.0
WISCONSIN WIVER
55 7.5 MERRILL
I/LAKE WAUSAU
Co HWY W4.5 MI N WAIJSAU BELOW 8ROKAW SIP
11EPALES 2111204
4 0000 FEET DEPTH
00630
00625
00610
00671
00665
r)ATE
TIME
DEPTH
NO? NO)
TOT P JEL
NH3—N
PIIOS—DIS
PhOS—TOT
FROM
OF
N-TOTAL
N
TOTAL
ORTHO
TO
DAY
FEET
M6/L
4G/L
MG/L
MG/L P
MG/L P
72/09/23
09
30
0.202
1.500
0.034
0.005K
0.068
72/10/14
10
00
0.215
0.950
0.089
0.014
0.060
72/11/11
10
35
0.154
0.770
0.082
0.014
0.042
72/12/10
08
15
0.180
0.9?0
0.060
0.011
0.036
71/01/13
10
20
0.210
0.840
0.115
0.018
0.040
73/0?/10
10
20
0.240
0.750
0.09?
0.016
0,045
73/03/10
09
50
0.370
0.897
0.180
0.029
0.070
73/04/07
09
55
0.189
0.670
O. ORP
0.010
0.040
71/04/20
09
15
0.150
0. 90
0.084
0.012
0.050
73/05/05
08
‘ .0
0.100
0.950
0.038
0.014
0.045
73/05/19
08
20
0.056
0.965
3.018
0.006
0.040
71/06/11
13
55
0.110
0.780
0.027
0.009
0.050
73/07/29
55
0.100
O.SR O
0.005K
0.005K
0.055
71/08/19
13
30
0.023
0.560
0.023
0.016
0.055
K VAL’J rcNO. N TO 3F LF-5
THL N 1NDIC TEO

-------
STORET PETRIEVAL DATE 74/10/02
555144 LS5551A4
L 5 46 30.0 089 39 30.0
WISCONSIN PIVEP
55 7.5 MERRILL
1/LAKE WAUSAU
END Co HWY WW ABOVE BROKAW SIP
1IEPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TTME DEPTH NO2 NO3 TOT KJEL NH3—N PHOS—DIS PHOS-TOT
FPOM OF N—TOTAL N TOTAL OPTHO
TO DAY FEET MG/L ‘iG/L MC /L MG/L P MG/L P
72/09/23 09 00 0.245 ?.000 0.022 0.005K 0.069
72/10/14 10 15 0.273 0.850 0.154 0.013 0.054
7?/11/II 10 25 0.13? 1.050 0.033 0.013 0.040
72/12/10 08 50 0.180 0.780 0.05? 0.01) 0.036
71/01/13 10 00 0.200 0.660 0.115 0,016 0.040
71/0?/10 10 00 0.270 1.600 0.430 0.012 0.035
71/03/10 09 35 0.336 0.850 0.210 0.031 0.070
71/04/07 09 5 0.154 0.600 0.034 0.009 0.040
71/04/20 09 20 0.100 1.700 0.07? 0.009 0.050
73/05/05 08 05 0.056 0.605 0.016 0.012 0.045
71/05/19 09 30 0.058 0.690 0.030 0.007 0.040
71/06/11 14 10 0.130 0.660 0.086 0.009 0.045
73/07/29 08 45 0.150 1.470 0.005K 0.007 0.050
73/C’4/19 13 00 0.150 0.400 0.017 0.013 0.045
K V LUr. ‘ 1OWN TO -4L L ’ S
T— ” N IrJL)TC TFI)

-------
STORET RETRIEVAL DATE 74/10/02
5551A5 LSS55 IA S
4S 08 30.0 089 39 00.0
WISCONSIN IVEP
55 7.5 MERRILL
I/L4P E WAUSAU
FARM RI) 3 MI S MERRILL BELOW SIP
1IEPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPT 1 N0?&N03 TOT KJEL NH3—N PHOS—DIS PHOS-TOT
FROM OF N—TOTAL N TOTAL ORT -1O
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P
7?/09/23 1 5 ?0 0.1 ? ? 0.950 0.071 0.007 0.05e
72/10/15 13 50 0.311 1.400 0.154 0.011 0.054
7?/1)/11 1? 35 0.147 1.100 0.04? 0.014 0.040
71/03/11 13 ?0 0.270 1.540 0.19 0.028 0.035
73/04/07 14 20 0.176 0.730 0.027 0.010 0.035
71/04/26 13 20 0.105 1.000 0.035 0.010 0.035
71/05/06 11 45 0.063 0.800 0.026 0.014 0.040
71/05/1w 14 15 0.080 0.690 0.029 0.006 0.035
73/06/23 1? 55 0.126 0.660 0.029 0.009 0.060
73/07/2? 12 40 0.176 0.660 0.028 0.020 0.040
71/08/27 13 45 0.210 0.600 0.046 0.015 0.049

-------
DRET RETRIEVAL DATE 74/10/0?
55 5 1A6 L55551A6
45 10 30.0 079 41 00.0
WISCONSIN RlVE
55 7.5 M r RILL
1/LAKE WAUSAU
us si ARDu IN MERRILL AROV STP
1 IEP#LES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 006
DATE TIPAE DEPTH NO? NO3 TOT KJEL NH3-N PriOS-D1S Pp-iOS--TOT
FROM OF N—TOTAL N TOTAL OPTrIO
TO DAY FEET MC,/L 1 /L tlG/L MG/L MG/L P
72/09/23 14 50 0.237 0.900 0.073 0.006 0.058
72/10/15 13 30 0.300 2.150 0.200 0.01 1 0.054
72/il/li 12 10 0.120 0.P00 0.030 0.012 0.03
72/12/10 13 20 0.147 1.05C 0.054 0.010 0.034
71/01/13 1150 0.176 0.630 0.115 0.010 0.035
73/0?/10 1? 0 0.220 0.890 0.140 0.012 0.035
73/03/11 13 15 0.780 0.?130 0.Oa O
71/04/07 13 55 0.126 0.895 0.027 0.009 0.035
73/04/?6 13 10 0.080 0.560 0.025 0.011 0.035
71/05/Ob 11 15 0.046 1.200 0.038 0.014 0.045
7 1/OD/1 14 00 0.046 1.760 0.044 0.00 0.035
71/06/23 1? 35 0.710 1.26 0. O2P 0.025 0.040
71/07/22 17 5 0.160 1.700 0.080 0.020 0.045
73/0 /27 13 30 0.1H 2.3 1t) 0.126 0.021 0.050

-------
STORET RETRIEVAL DATE 74/10/02
K VttLUF KNO N TO - L S
1r4 N INDIC TEfl
555181 LS555191
44 57 00.0 089 45 00.0
RIVER
55 15 WA&JSAU
1/LAKE WAUSAU
ST HWY 29 W OF WASAU BELO MARATHON SIP
IIEPALES 2111204
4 0000 FEET DEPTH
flATE
TIME
DEPTH
N02&N03
TOT KJEL
NH3—N
PHOS—DIS
PHOS-TOT
FROM
OF
N-IOTAL
N
TOTAL
OPTHO
TO
DAY
FEET
MG/L
lG/L
MG/L
MG/L P
MG/L P
72/09/23
1?
20
0.363
1.900
0.048
0.005K
0.120
72/10/14
09
30
0.470
0.950
0.147
0.022
0.058
7?/11/11
09
30
0.690
1.400
0.035
0.025
0.050
72/12/10
08
20
0.770
0.660
0.105
0.027
0.056
71/01/13
10
00
0.750
1.030
0.160
0.040
0.075
73/0?/10
09
40
0.800
1.300
0.13P
0.054
O.OMO
73/03/10
09
35
0.640
1.540
0.450
0.098
0.190
71/04/07
09
10
0.480
0.970
0.027
0.014
0.035
71/04/20
08
15
0.620
0.660
0.035
0.017
0.045
73/05/06
1?
‘0
0.530
0.580
0.023
0.019
0.040
73/05/19
09
55
0.240
0.540
0.014
0.01?
0.035
73/06/11
16
00
0.115
0.690
0.026
0.01?
0.040
71/07/?9
10
0
0.034
0.480
0.005 <
0.005K
0.040
71/OrVll
08
10
0.037
0.8??
0.04?
0.020
0.045

-------
STORET RETRIEVAL DATE 74/10/02
555182 LS5551 2
44 56 00.0 0 39 50 30.0
55 J5 MARATHON
T/LA) E WAUSAU
ST HWY1Q7 DG AbOVE MARATHON STP
I IEPALES 2111204
4 0000 FEET DEPT 4
00610 006?5 O0 10 00671 00665
DATE TIME DEPT-I NO &NO3 TOT KJFL NH3-N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL OPTH O
TO DAY FEET MG/L ‘IG/L MG/L MG/L P MG/L P
72/09/23 11 05 0.33 1.750 0.117 0.038 0.112
72/10/14 09 45 0.3 0 1.000 0.100 0.021 0.055
72/11/lI 10 ?0 0.620 1.200 0.031 0.026 0.047
72/12/10 09 00 0.770 0.940 0.09k 0.023 0.045
73/01/13 10 25 0.&Q0 0.7 0 0.120 0.031 0.050
71/02/10 11 10 0.750 0.600 0.105 0.037 0.060
73/03/10 09 55 0.600 1.760 0.470 0.ORR 0.165
71/04/07 09 25 0.430 0.730 ).O2l 0.013 0.035
73/04/20 0 35 0.540 0.690 0.074 O.01 0.045
71/05/06 I? 15 0.440 0.6?0 0.021 0.019 0.035
7 3 / 0 / 1 Q 11 00 0.176 0.580 0.017 0.011 0.030
71/06/11 14 45 0.095 0.690 0.015 0.011 0.040
73/07/29 10 25 0.011 0.560 0.013 0.00 5K 0.01’,
71/0 /17 06 30 0.013 0.7 0 0.054 0.009 0.030
VL\LUL KNOWI’1 TO - LE S
E-lt N P8DICATED

-------
STOPFT ETR!EVAL DATE 74/10/02
5551C1 L55551C1
44 56 00.0 089 58 00.0
SCOTCH CkEEK
55 1 H RATHON
T/LAKE WAUSAU
CO PD XING 1 MI W MAPATHON
11EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME OFPTH NO2 NO3 TOT 
-------
STD ET ETR1EVAL DATE 74/10/02
5551C2 LS555 1C2
44 55 00.0 089 57 00.0
,C )TC -4 C EE’ c
15 MA, ATHON
T/LA,cE WAUSAU
Co O xIr4G .75 MI E EDGAP BELOW STP
I IEPALES 2111204
4 0000 FEET DEPTP1
00630 30625 00610 00671 00665
DATE TIME flFPT 1 NO? N03 TOT KJFL NH3-N PHOS—DIS PHOS-TOT
FROM OF N—TOTAL N TOTAL OPTr$O
TO DAY FEET MG/L PIG/L MG/I MG/L P MG/L P
77/09/23 1! 35 0.580 1.700 0.240 0.220 0.330
7?/)O/14 10 15 0.91? 1.700 O.?60 0.148 0.210
72/fl/lI 10 50 1.140 0.880 0.060 0.067 0.105
72/12/10 10 25 ?.100 3.000 1.600 0.510 0.t70
71/01/13 11 05 1.900 3.100 1.340 0.?92 O.3 0
73/02/10 10 30 1.760 4.000 2.200 0.490 0.67
73/03/10 10 10 0.5M0 1.900 0.620 0.126 0.210
71/04/OF 10 00 0.4?0 0.840 0.049 0.0 27 0.060
71/04/20 13 ‘5 0.970 3.180 0.231 0.050 0.080
71/05/06 Ii 40 0.860 0.690 0.084 0.052 0.075
71/0S/IQ 10 10 0.560 1.?I 0 0.370 0.140 0.220
73/06/11 13 25 0.890 1.500 0.310 0.273 0.375
73/O7/2’- 10 45 0.580 3.780 O. 4O 0.960
71/08/17 07 30 1.280 2.600 1.470 1.160 1.400

-------
STOPET ETPTEVAL DATE 74/10/02
5551C3 LS555 1C3
44 55 00.0 089 58 00.0
SCflTCri CREEK
55 15 MARATHON
T/LAKE WAUSAU
Co HWY H i)G IN EI)GAR ABOVE STP
I1EPALES 2111204
4 0000 FEET DEPTH
00630 006?5 00610 (10671 00665
DATE TIME DEPTrI NO2 NO1 TOT KJFL NH3—N PHOS—DIS PHOS-TOT
FROM OF N—TOTAL N TOTAL ORT’-ft)
TO DAY FEET MG/L MG/L MG/L M1,/L P MG/L P
72/09/23 I I 40 0.206 1.300 0.13? 0.056 0.138
72/10/14 10 25 0.600 0.800 0.084 0.0?? 0.05i
72/11/11 11 00 0.950 0.P90 0.0?? 0.035 0.063
7?/1?/!0 10 35 2.000 0.650 0.075 0.0?5 0.036
73/01/13 11 20 1.640 1.000 0.090 0.050 0.125
71/02/10 10 45 1.860 1.?00 0.0 ? 0.040 0.095
71/03/10 10 30 V.550 1.890 0.630 0.120 0.200
73/04/07 10 10 0.340 1.900 0.037 0.019 0.055
71/04/20 09 45 0.830 0.580 0.040 0.022 0.040
73/0 /06 11 30 0.760 0.560 (). O2P 0.023 0.035
71 /0 /19 10 35 0.315 1.260 0.126 0.028 0.050
73/06/li 15 30 0.180 0.943 0.160 0.066 0.110
73/07/29 10 30 0.069 0.680 0.056 0.105
71/0 /17 08 00 0.230 1.100 1.010 0.430 0.640

-------
ST)RET ET91EVAL DATE 74/10/0?
5551D1 LS5 S S1D I
44 57 30.0 089 41 45.0
LITTLE RIB RIVER
55 15 WAUSAU
1/LAKE WAUSAU
Si H Y 29 BP DG AT 4MT ? MIW OF WAUSAU
11EPALES 2111204
4 0000 FEET DEPTH
00633 00625 00610 00671 00665
DATE TP E DEPTH ‘ JO NO3 TOT KJEL NH3-N PHOS-DIS PHOS—TOT
P0M OF N-TOTAL N TOTAL ORTHO
TO DAY FEET MC,/L MG/L MC,/L MC /L P MG/L P
72/09/23 10 45 0.515 0.750 0.094 0.01’ 0.06?
72/10/ i ’. 1050 0.810 0.650 0.063 0.013 0.0?Q
7?/lI/i1 1015 1.430 0.500 0.019 0.013 0.029
72/ 17/10 1050 1.620 0.100K 3.030 0.010 0.016
71/01/13 11 05 1.620 0.400 0.058 0.015 0.020
71/02/10 13 50 1.640 0.340 0.040 0.015 0.025
71/01/10 1) 20 0.950 1.120 0.350 0.049 0.110
71/04/07 11 05 0.990 0.700 0 Q34 0.010 0.030
71/04/20 0’) ‘0 1.300 0.690 0.031 0.010 0.030
71/05/05 09 30 1.?20 0.1MU 0. O OQ 0.014 0.030
73/05/13 11 40 0.690 0.160 0.015 0.007 0.015
71/06/11 14 30 0.660 0.Sô O 0.042 0.01? 0.025
71/07/29 10 10 0.600 0.370 0.017 0.006 0.0?5
71/t)R/19 14 35 0.540 0.140 0.016 0.tJ OQ 0.020
K V LUF ‘J0wN TO LESS
T J IFJDJCATE(

-------
STORET RETRIEVAL DATE 74/10/02
5551E)
44 56 00.0 089 34
FAI) CLAIRE RIVER
55 15 WAUSAU
T/LAP(E WAUSAU
CO RD BROG Mj NE
1 IEP ALES
4
LSS5S1E1
30 • 0
SCHOFIELD
2111204
0000 FEET
DEPTH
00630
00625
00610
00671
006b5
DATE
TIME
DEPTH
NO2F,. ’JO3
TOT KJEL
NH3-N
PHOS-DIS
PHOS-TOT
FROM
OF
N—TOTAL
N
TOTAL
ORTHO
TO
DAY
FEET
MG/L
‘iG/L
NIG/L
MG/L P
MG/L
7?/09/?3
10
00
0.370
1.070
0.378
0.061
0.110
7?/10/14
09
45
0.640
0.800
0.05R
0.052
0.084
7?/I.1/11
09
30
0.690
0.870
0.021
0.052
0.078
7?/1?/10
o
30
1.560
1.175
0.126
0.083
0.133
71/01/13
14
00
1.100
0.830
0.?40
0.147
0.180
73/02/10
11
00
1.2?0
0.975
0.154
0.130
0.165
73/03/10
10
30
0.550
1.200
0.?90
0.063
0.125
73/04/07
10
15
0.450
0.630
0.018
0.027
0.050
73/04/20
08
40
0.420
0.600
0.026
0.033
0.060
73/05/05
10
20
0.270
0.720
0.038
0.03?
0.055
71f0D/1
08
50
0.450
0.480
0.009
0.024
0.045
71/06/11
13
30
0.270
0.780
0.02f
0.030
0.075
73/07/29
09
15
0.330
0.520
0.035
0.147
0.190
73/08/19
14
00
0.530
0.350
0.017
0.078
0.145

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STOPET PETPTEVAL )ATE 7 ./O /3’J
P 03?A06
5 N1
44 5 , 10.0 0 - 1/ J0.0
cirv r)F wAUSAU
r, 5 15 vAUS4U
T/LAKfr . wAUSAII
‘ISCONSI 4 ‘ TVEk
I lEr-’ALES 214120’#
0000 FEET DEPTH
00630 00625 00671 00665
50051
0053
DATE
TIME
DFPT -i
N02&N03
TOE K JEL
•‘ ri3N
P’-jflSI)IS
P’l(JSTOT
FLOW
CONDUIT
FPOM
OF
N—TOTAL
N
T ’)TAL
OPrho
RATE
FLOW—MG [ )
TO
DAY
FEET
HG/L
MG/L
/L
i( ,/L P
MG/L P
INST Mc,1)
MONTHLY
73/fl/1
00
00
CP(T)—
3.6’J0
l7.I 00
- •Q’- J
0.I 0
0.c ’ 30
7.000
7.220
71/0?/01
?4
00
71/02/?R
00
00
CP(T)—
3 .40t)
19.900
M.4 00
1.OSO
?.000
6.Y6 )
6.570
71/O?/2F
24
00
73/04/30
00
00
CP(T)—
3.700
18.OOu
‘.000
0. 00
.100
8.460
9.400
73/04/30
74
00
71/05/31
00
00
C (T)—
2.570
16.800
6.Le
?.270
4.300
10.300
10.300
73/05/31
74
00
73/07/0 1
00
00
C - ’(T)—
.000
32.000
1 .900
0.750
1.559
5.9 0
7.960
73/07/0 1
24
00
73/07/31
00
00
-
CP(T)—
1.200
15.400
5•4QØ
1. 35O
3.205
7.040
7.020
71/07/31
?4
0’)
73/OR/3 1
00
00
CP(T)—
5.600
17.600
0.13?
7.600
7.700
6.900
71/OM/31
24
00
73/09/3’)
00
00
CP(T)—
.I30
2.700
u.27j
0. 70
0.760
5.400
6.5r 0
71/09/30
?4
00
71/10/31
00
00
CP(T)—
3.570
11.500
‘. ‘!JO
0.?60
I. -,3
7.u2 O
6.610
73/10/31
24
Os)

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STORET ETR1EVAL DATE 74/0 /30
555152 TF55 5 152 P000312
45 01 30.0 089 37 00.0
VLG OF BROtcAW
55 7.5 MERRILL
T/LAKE WAUSAU
WISCONSIN RIVER
IIEIDALES 2141204
4 0000 FEET DEPTH
00630 00625 ‘) ‘ )6 10 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL Ni-fl-N PHOS-DIS PHOS—TOT FLOW CONDUIT
FPOM OF N—TOTAL N TOTAL ORT i- O RATE FLOW—MGD
TO DAY FEET MG/L MG/I M(5/L MG/L P MG/L P INST MGI) MONTHLY
7?/ 12/26 08 00
C (T)— 14.200 22.000 12.000 6.200 7.500 0.029 0.026
72/I,2/26 16 00
13/01/25 08 00
CP(T)— 4.500 23.000 16.000 5.700 6.500 0.024 0.027
73/01/25 16 00
73/02/25 08 00
CP(T)— 7.700 17.000 10.000 6.300 0.026 0.025
73/02/PS 16 00
73/03/30 08 00
CP(T)— 8.400 18.900 s.50fl 6.050 6.500 0.027 0.032
73/03/30 16 00
73/04/30 08 00
CP(T)— 11.500 14.700 .3O0 5.500 6.200 0.023 0.029
73/04/30 16 00
71/05/28 II 00
CP(T)— 1 .000 8.150 5.000 5.300 6.300 0.027 0.027
73/05/PR 16 00
73/06/28 Ii 00
CPU)— 13.200 1 .400 k.°00 6.700 7.500 0.025 0.024
71/06/28 16 00
73/07/30 11 00
CPU)— 11.20’) 7.200 4.50( 1 4.700 6.000 0.034 0.028
71/07/30 16 00
73/08/28 11 00
CP(T)— 13.800 4.920 4.600 5.770 0.028 0.028
71 OR/?P 16 00
73/09/27 11 uO
CP(T)— 10.200 15.400 7.900 .000 6. 500 0.025 0.026
71/09/27 16 00
73/10/26 11 00
C0(T)_ 14.O O IP.OOI) j.7 0 U 7.000 7.600 0.017 0.021
73/l0/2 16 00
73/l1/? II 00
CP(T)— 2.300 1S.000 2.0o ’1 6.500 7.900 0.0)3 0.020
71/1 1/29 16 00

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5S51 2 TF Sb5 l5d
01 30.0 Or4g 3! 00.0
VLG OF H O cAW
55 7.5 MERRILL
1/LAKE WAUSAU
wISCONSIN RIVER
I1EPALES
4
73/12/27 11 00
CP (fl —
73/12/27 16 00
12.400 3 .000
STORET RETRIEVAL DATE 74/09/30
00630
00625
CThI0
DATE
TIME DEPTH NO2 .NO3
TOT
KJEL
NH 3-N
FROM
OF
N—TOTAL
N
TU AL
P000312
c 14 1204
0000 FEET DEPTH
0 71
006 5
PrIOS—DIS
PHQSTQT
FLOW
CONDUIT
UPTHO
I ATE
FLO’ —MGD
MC,/L P
G/L P
INST MFJD
MONTHLY

-------
ST0P T RETRIEVAL DATE 74/09/30
555154 AS555154 P001214
44 56 00.0 089 51 00.0
CITY OF MARATHON
55 15 MARATHON
T/LAKE WAUSAU
R18 RIVER
1 1EPALES 2141204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTP-1 1O?i .NO3 TOT KJEL NH3—N PHOS-DIS P1-sOS—TOT FLOW CONDUIT
FROM OF ri—r0TAL N rOTAL ORTHO RATE FLOW—MGD
TO DAY FEET MG/L ‘IG/L MG/L MG/L P MG/L P INST MGD MONTHLY
73/01/01 11 30 4.400 8.850 1.370 1.790 2.900 0.120 0.100
73/02/06 11 00
CP(T)— 4.400 7?.000 12.000 6.100 7.800 0.090 0.093
71/02/OE 16 00
71/04/Os 10 00 3.700 10.500 4.100 1.735 3.000 0.123 0.100
73/05/16 10 00 5.900 12.600 3.550 2.700 3.400 0.136 0.150
73/06/10 09 00 1
CP(T)— 1M.0 0 0 0.700 0.390 3.400 3.700 0.140 0.145
73/06/Il 09 00
73/07/10 11 00 18.200 6.300 3.900 6.550 7.300 0.092 0.095
74/01/14 08 30
CP(T)— 16.000 16.500 10.500 6.900 8.400 0.080
74/Ol/1 08 30
74/02/05 08 30
CPU)— 23.000 13.000 6.200 8.800 10.500 0.080 0.081
74/02/06 08 30
74/02/26 08 30
CP(T)— 24.030 18.000 8.000 9.300 10.500 0.067 0.070
74/02/27 08 10
74/01/la 9 10
C (T)— 12.600 10.000 6.600 5.300 7.400 0.090 0.090
74/03/70 08 30
74/04/il 08 10
10.100 5.100 3.300 2.500 3.600 0.155 0.163
74/04/i? 0 30
74/0’- 4 /? 08 10
P’.OCO 11.000 4. OO 4.400 5.900 0.100 0.150
74/o’./10 08 00
74/05/1’ OM 30
11.003 18.000 10.000 5.200 6.000 0.091 0.089
74/05/20 U’ 10

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