U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
SINISSIPPI U\KE
DODGE 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
•d GPO 697.032
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REPORT
ON
SINISSIPPI LAKE
DODGE COUNTY
WISCONSIN
EPA REGION V
WORKING PAPER No,
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 V i
Sections
I. Conclusions 1
II. Introduction
III. Lake and Drainage Basin Characteristics 4
IV. Lake Water Quality Summary 5
V. Nutrient Loadings 8
VI. Literature Reviewed 13
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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 [ 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
Nagawicka 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
Shawano Shawano
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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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vi
SINISSIPPI LAKE
Tributary Sampling Site
Lake Sampling Site
Sewage Treatment Facility
Direct Drainage Area Limits
0 1 2
‘ - ‘ .J. 1.
Scale
Map Locatio, 1 f I
. S Iymon
/
/
1/)
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SINISSIPPI LAKE
STORET NO. 5541
I. CONCLUSIONS
A. Trophic Condition
Limited survey data and the records of others show that
Sinissippi Lake is quite eutrophic. It does not appear that
the morphometry and derivation of the lake would permit any
other trophic condition.
B. Rate-Limiting Nutrient:
This lake was not sampled in November because of a drawdown,
and no algal assay sample was obtained. However limited lake
data indicate nitrogen limitation in June and August, 1972.
C. Nutrient Controllability:
1. Point sources--During the sampling year, Sinissippi Lake
received a total phosphorus load at a rate over eight times that
proposed by Vollenweider (in press) as “dangerous”; i.e., a
eutrophic rate (see page 12). Of this load, point sources are
estimated to have contributed about 11%. It is concluded that
point-source phosphorus control would have little effect on the
trophic condition of the lake.
2. Non-point sources--The estimated areal or non-point
phosphorus contribution of Dead Creek is over three times greater
than the relatively high contribution of the Rock River. The
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2
high loadings and the N/P ratios of both streams suggest there
are phosphorus point sources in the drainage not considered in
this Survey (see page 12).
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II. INTRODUCTION
Sinissippi Lake is a large, shallow impoundment of the upper Rock
River at Hustisford. The original 12-foot dam was constructed in 1845
and was raised about two feet in 1939. Reportedly, the area flooded by
the dam was a broad marshy valley, and impoundment resulted in a shallow,
fertile environment well suited for carp. Extensive wetlands, including
the well-known Horicon Marsh, characterize the drainage.
Recreational uses of the lake are largely restricted to boating,
hunting, and fishing. The fishery now consists of walleyes, northern
pike, catfish, and perch following a carp control program (Narf, 1974a).
Public access is somewhat limited.
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4
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphonietry:
1. Surface area: 2,300 acres.
2. Mean depth: 4.6 feet*.
3. Maximum depth: 8 feet.
4. Volume: 10,580 acre/feet.
5. Mean hydraulic retention time: 33 days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage area 1 Mean flowt
Rock River 332.0 m1 2 143.6 cfs
Dead Creek 27.3 mi 2 11.2 cfs
Minor tributaries & 2
immediate drainage - 18.1 mi 8.9 cfs
Totals 377.4 mi 163.7 cfs
2. Outlet -
Rock River 381.0 mi 21 163.7 cfs
C. Precipitationtit:
1. Year of sampling: 40.5 inches.
2. Mean annual: 30.9 inches.
* Narf, 1974b.
I Drainage areas are accurate within ±0.5%; mean daily flows are accurate
within ±40%; mean monthly flows are accurate within ±35%; and normalized
mean monthly flows are accurate within ±35%.
i-t Includes area of lake.
ttt See Working Paper No. 1, “Survey Methods”.
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5
IV. LAKE WATER QUALITY SUMMARY
Sinissippi Lake was sampled two times at station 1 and once at sta-
tion 2 during the open-water season of 1972 by means of a pontoon-
equipped Huey helicopter. Each time, near—surface samples for physical
and chemical parameters were collected (see map, page vi). During each
visit, a single sample was composited from the stations for phytoplankton
identification and enumeration, and a sample was collected for chloro-
phyll a analysis. All samples were collected as near-surface samples.
The results obtained are presented in full in Appendix B and are
summarized below. The mean values presented in these summary tables
are not volume-weighted; nonetheless, the means are useful as a gen-
eral guide to differences in water quality at the different sampling
times.
A. Physical and chemical characteristics:
Parameter
Temperature (Cent.)
Dissolved oxygen (nig/l)
Conductivity ( mhos)
pH (units)
Alkalinity (mg/i)
Total P (mg/i)
Dissolved P (mg/i)
NO + NO (mg/i)
Ani onia mg/l)
Secchi disc (inches)
Mean Values
1st Sample 2nd Sample
( 06/20/72) ( 08/21/72 )
19.3 26.5
9.3 8.8
530 600
8.5 8.3
267 202
0.374 1.020
0.158 0.220
0.170 0.160
0.040 0.140
5 12
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6
Mm. for Max. for Mean for
Parameter all samples all samples all samples
Temperature 16.9 26.5 21.7
Dissolved oxygen 8.6 10.0 9.1
Conductivity 500 600 553
pH 8.3 8.6 8.4
Alkalinity 202 288 245
Total P 0.344 1.020 0.589
Dissolved p 0.128 0.220 0.179
NO + NO 0.050 0.290 0.167
ArT onia 0.020 0.140 0.073
Secchi disc 4 12 7
B. Biological characteristics:
1 . Phytop lankton -
Sampling Dominant Number
Date Genera per ml
06/20/72 1. Cyclotella 66,570
2. Scenedesmus 26,049
3. Fragilaria 25,326
4. Nitzschia 5,789
5. Actinastrum 5,789
Other genera 20,983
Total 150,506
08/21/72 1. Cyclotella 44,286
2. ScenedesmuS 28,571
3. Merismopedia 22,857
4. Melosira 12,143
5. Cryptomonas 8,571
Other genera 28,572
Total
145,000
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7
2. Chlorophyll a -
(Because of instrumentation problems during the 1972 samp1inc ,
the following values may be in error by plus or minus 20
percent.)
Sampling Station Chlorophyll a
Date Number ( pg/i )
06/20/72 01 234.0
02 181.2
08/21/72 01 92.8
C. Trophic Condition:
Limited Survey data and the records of others show that
Sinissippi Lake is eutrophic, and it does not appear that
the morphometry and derivation of the lake would permit any
other trophic condition. Reportedly, heavy blooms of algae
are a comon occurrence.
Compared to the 44 Wisconsin lakes that were sampled
three times, none had a higher mean total phosphorus, 90% had
less mean dissolved phosphorus, none had a higher mean chloro-
phyll a, all had greater Secchi disc transparency, but 71%
had a greater mean inorganic nitrogen (the relatively low
level of inorganic nitrogen supports the conclusion that the
lake was nitrogen limited when sampled).
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8
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 tributary
sites nearest the lake.
In this report, nutrient loads for sampled tributaries were determined
by using a modification of a U.S. Geological Survey computer program for
calculating stream loadings*. Nutrient loadings for unsampled “minor
tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were estimated by
using the mean annual concentrations in the Rock River at station A-3 and
the mean annual ZZ flow.
The cities of Horican and Juneau and the Village of Clyman declined
participation in the Survey, and nutrient loads were estimated*. In the
tables that follow, the loads attributed to the tributaries are measured
loads minus point-source loads.
* See Working Paper No. 1.
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9
2. Known industrial -
A. Waste Sources:
1 . Known municipal -
Pop.*
Mean*
Name
Served
Treatment
Flow (mgd)
Receiving
Water
Horicon
3,356
Trickling
filter
0.420
Rock River
Juneau
2,043
Act. sludge
0.312
Dead
Clyman
328
Ponds
0.018
Dead Creek
tributary
Name
Product
Treatment
Mean*
Flow (mgd)
Receiving
Water
Milbrew,
brewers
lagoon
0.200
Dead Creek
Inc., Juneau
yeast
(cooling
water)
0.058
Dead Creek
* Narf, 1974a.
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10
B. Annual Total Phosphorus Loading - Average Year:
1 . Inputs -
lbsP/ %of
Source yr total
a. Tributaries (non-point load) -
Rock River 86,120 66.1
Dead Creek 23,640 18.1
b. Minor tributaries & immediate
drainage (non-point load) - 5,820 4.5
c. Known municipal SIP’s -
Horicon 8,390 6.4
Juneau 5,110 3.9
Clyman 820 0.6
d. Septic tanks* - 130 0.1
e. Industrial - Not known ? -
f. Direct precipitation** - 360 0.3
Total 130,390 100.0
2. Outputs -
Lake outlet - Rock River 128,880
3. Net annual P accumulation - 1,510 pounds
* Estimated 200 dwellings on shoreline; see Working Paper No. 1.
** Estimated; see Working Paper No. 1.
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11
C. Annual Total Nitrogen Loading - Average Year:
1 . Inputs -
lbs N/ % of
Source yr total
a. Tributaries (non-point load) -
Rock River 1,083,780 85.1
Dead Creek 56,400 4.4
b. Minor tributaries & inuiediate
drainage (non-point load) - 63,430 5.0
c. Known municipal STP’s -
Horicon 25,170 2.0
Juneau 15,320 1.2
Clyman 2,460 0.2
d. Septic tanks* - 4,700 0.4
e. Industrial — Not known ? -
f. Direct precipitation** - 22,160 1 .7
Total 1,273,420 100.0
2. Outputs -
Lake outlet - Rock River 1,276,620
3. Net annual N loss - 3,200 pounds
* Estimated 200 dwellings on shoreline; see Working Paper No. 1.
** Estimated; see Working Paper No. 1.
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12
0. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary lbs P/mi 2 /yr lbs N/mi 2 /yr N/P Ratio
Rock River 259 3,264 13/1
Dead Creek 866 2,066 2/1
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-
phonietry permitted. A rnesotrophic rate would be considered one
between “dangerous” and “permissible”.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
lbs/acr /yr 56.7 0.7 553.7 loss*
grams/m /yr 6.35 0.07 62.1 -
Volle 2 weider loading rates for phosphorus
(g/ni /yr) based on mean depth and mean
hydraulic retention time of Sinissippi Lake:
“Dangerous” (eutrophic rate) 0.76
“Perniissible” (oligotrophic rate) 0.38
* There was an apparent loss of nitrogen during the sampling year. This
may have been due to nitrogen fixation in the lake, solubilization of
previously sedimented nitrogen, recharge with nitrogen-rich ground water,
unknown and unsampled point sources discharging directly to the lake, or
(probably) underestimation of nitrogen loads from known point sources.
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13
VI. LITERATURE REVIEWED
Kernan, Lee T., Ronald J. Poff, and C. W. Threinen; 1965. Surface
water resources of Dodge County. Conservation Dept., Madison.
McKersie, Jerome, George L. Hansel, Floyd F. Stautz, and Dick Narf;
1969. Report on an investigation of the pollution in the upper
Rock River drainage basin made during 1967-1968. Dept. of
Natural Resources, Madison.
Narf, Richard P., 1974a. DNR intra-department memorandum (review
of preliminary report on Sinnissippi Lake). Dept. of Natural
Resources, Madison.
_________ 1974b. Personal communication (mean depth of Sinissippi
Lake). 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 5541 SINISSIPPI LANE
TOTAL DRAINAGE AREA OF LAKE 381.00
SUB—DRAINAGE NORMALIZED FLOWS
TRIBUTARY AREA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT N 0€C MEAN
5541*1 381.00 83.30 107.80 411.70 480.30 215.70 117.60 107.80 74.50 82.30 93.10 107.90 80.50 163.63
5541A2 332.00 72.00 98.00 360.00 430.00 180.00 100.00 95.00 65.00 74.00 84.00 93.00 12.00 143.62
554181 27.30 3.20 6.20 29.00 36.00 11.00 4.90 9.70 5.10 7.10 7.60 8.10 5.80 11.15
554 1ZZ 21.70 2.40 4.70 23.00 29.00 8.70 3.70 8.00 4.00 5.80 6.10 6.30 4.70 8.88
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 381.00 TOTAL FLOW IN = 1963.10
SUM OF SUB—DRAINAGE AREAS = 381.00 TOTAL FLOW OUT = 1962.50
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
554 1A1 9 72 500.00 24 850.00
10 72 580.00 15 450.00
11 72 450.00
1? 72 150.00 9 130.00
1 73 500.00
2 73 590.00 28 200.00
3 73 1050.00 10 1300.00
4 73 960.00 12 650.00 24 1600.00
5 73 1100.00 14 1200.00 31 1100.00
6 73 450.00 22 200.00
7 73 74.00 3 100.00
8 73 55.00 12 56.00
5541*2 9 72 44.00 24 72.00
10 72 47.00 15 34.00
11 72 34.00
12 72 11.00 9 9.40
1 73 440.00
? 73 520.00 28 170.00
3 73 940.00 10 1200.00
4 73 830.00 12 570.00 24 1400.00
5 73 960.00 14 1100.00 31 920.00
6 73 380.00 22 170.00
7 73 64.00 3 91.00
8 73 48.00 12 48.00
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TPIBIJTAPY FLOw !NFOP 4ATION FOP ISCONSN 9/30/74
LA(E CO [ )E 5541 SINISSIPPI LAKF
MEAN P lONT,1LY FLOWS AND DAILY FLOWS
TRIP JTARY MONT -l vEA MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
5S41 1 9 7? 440.00 24 740.00
10 72 5?0.00 15 400.00
11 7? 4C0.00
1? 72 130.00 9 110.00
1 73 35.00
? 73 42.00 28 11.00
3 73 75.00 10 95.00
4 73 70.00 12 47.00 24 110.00
5 73 58.00 14 64.00 31 56.00
6 73 19.00 22 3.60
7 73 6.60 3 9.20
8 73 3.90 12 3.90
5541/7 9 7? 36.00 24 58.00
10 7? 39.00 15 27.00
11 7 27.00
1’ 72 P.40 9
1 73 28.00
2 73 33.00 28 7.60
3 73 59.00 10 74.00
4 73 56.00 12 38.00 24 92.00
5 73 45.00 14 50.00 31 44.00
6 73 14.00 2? 6.60
7 73 5.40 3 7.60
9 73 3.00 12 3.10
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APPENDIX B
PHYSICAL and CHEMICAL DATA
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STORET RETRIEVAL DATE 74/09/30
554101
43 21 30.0 088 36 30.0
SINISSIPPI LAP(E
55 WISCONSIN
11EPALES 2111202
3 0001 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 MICROMMO SI.) MG/L MG/I MG/I MG/I P MG/L P
7?/06/20 17 42 Ô000 16.9 8.6 4 500 8.62 246 0.290 0.020 0.404 0.128
72/08/21 12 50 0000 26.5 8.8 12 600 8.30 202 0.160 0.140 1.020 0.220
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/I
72/06/20 17 42 0000 234.OJ
72/08/21 12 50 0000 92.8J
J VALUE KNOWN TO ‘ F JN ER O
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STORET RETRIEVAL DATE 74/09/30
554102
43 23 00.0 088 38 00.0
SINISSIPPI LANE
55 WISCONSIN
11EPALES 2111202
3 0002 FEET DEPTH
00010 00300 00077 00094 00400 00410 00630 00610 00665 00666
DATE TIME DEPTH WATER DO TRANSP CNOUCTVY PH T ALK N02&N03 P4 113—N PHOS—TOT P1105—0 15
FROM OF TEMP SECCHI FIELD CACO3 N—TOTAL TOTAL
TO DAY FEET CENT MG/L INCHES MICRONHO SU MG/I MG/I MG/L MG/L P M6/L P
72/06/20 18 00 0000 21.8 10.0 6 560 8.40 288 0.050 0.060 0.344 0.188
32217
DATE TIME DEPTH CHLRPHYL
FROM OF A
TO DAY FEET UG/L
7?/06/20 18 00 0000 1R1.2J
VALUE (NO I p N FRPOr
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APPENDIX C
TRIBUTARY DATA
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ST )PFT ‘ ETPTEVAL I)ATE 74/10/02
LS SS4LA I
43 ?1 00.0 Q P 3’ 00.0
-flVE
1 1OP1CON
O/ INN1SSIPPf LAKE
ST H Y 109 kP!3G IN
1 1F-’ LES
4
MUST TFO D
2111204
0000 FEET 1)E’ TH
00630
006?5
00610
00671
DATE
TIME
DE”T -I
‘JO2 ’JO3
TOT JEL
N 11—NI
FROM
OF
N—TOTAL
\‘
TOTAL
0’ T 10
TO
DAY
FEET
MG/L
‘ /L
M(/L
MG/L P
MG/L 3
7”09/24
OR
55
U.1 - 3
.?50
u. ORR
0.011
0.145
7 /P0/1
14
‘+5
0. 7O
3. 50
0.260
(.240
0.450
7?/1I/OQ
16
00
1.O
1.P00
0. O7cs
0. 13
0.210
7 /I?/O
‘39
c
1. 00
1 . qo
0.7 0
O.3Q
0.470
71/01/07
09
00
3.100
3.3 O
0.470
0.?q O
0.345
71/O?/2
17
10
1. 60
7.500
0.720
0. 0
0.360
71/Oj/13
10
10
1.340
‘.9Q0
I.C40
0.l 0
O.2P0
71/’ 4/1
16
10
‘ 3•37P
?.050
‘3.147
0.060
0.1? S
71/ /2’
16
15
3.3?0
5.000
fl.?5?
0.105
0.430
71/C /l’4
1600
0.300
1.470
0. ( )?
0. 10
0.1’9o
7 f0S/3j
15
:io
0.39
1.760
.095
G.1 q
71/ i6/??
10
00
0.4,0
?. ‘ +00
0.120
0.044
0.450
71/07/01
11
00
0.460
3.990
0.430
0.’31
0.460
71/ r iM/ I?
10
00
0.160
‘.000
1.370
0.610
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ST’)I ET ETRTEVA1 DATE 76/10/0?
5L 4IA? LSS54 IA2
43 7 00.0 3 00.0
)C’ 1VE
15 -lO ’1CO i
T/S1NJ5SfP I LA
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ST PET FTQIEVAL 04ff 74/10/02
S5 .LA3 LS5 541A3
‘ . ‘ 7 00.0 0P 9 18 00.0
l)C, TVE
1t HO’ ICON
T/SII 1SSIPP1 LA (F
Co HW E DG IN rIO4ICON A OVE ST
)LFI’8L S 2111204
‘4 C000 FfET DEPTH
OOF ’30 O6?5 00610 00671 0 06e5
SATE TIME DFPTH NO? NO3 TOT (JEL N’13-N P OS—DIS Pp- OS—TOT
FR M OF i—TOTAL TOTAL ( Ti O
1’) DAY FEET MG/L 4G/L Mr,/1 M( /L P MG/L P
72/09/24 10 10 0.086 7.300 0.070 0.005’ ( 0.440
7?/IO/1 16 15 0.650 ‘ ..450 0.200 0.730 0.340
l?/Il/0 17 45 1.340 .760 0.050 0.140 0.?00
73/01/07 12 15 3.300 4.M00 0.650 0.260
71/0?/2H 19 10 I.9?0 2. 00 0.950 0.300 0.315
71/03/10 11 35 1.’fl O 2.100 0.”10 0.17
711 )4/I? 17 00 0.340 1.f8O 0.0?? 0.029 C.100
71/04/24 18 00 0.37R .Q00 0.0F 2 0.0F4 . 0.135
73/US/I’. 17 30 0.170 1.760 0.024 0.069 0 .125
73/05/31 16 10 0.340 2.500 0.096 0.19P 0.270
71/36/27 12 00 0.250 3.170 0.064 0.010 0.450
71/07/01 12 00 C.530 3.100 0.210 0.240 0.450
73/0 /l I I 10 1.340 2.400 0.160 0.470 0.630
K V1.Ltlc - NP” ’ T) .1- L —c
I -1I ” I’ UIC TF’
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ST )RET ‘-‘ETPIEVAL t)ATE 74/10/02
5 61 1 LS 1 5541R1
43 21 10.0 0P9 1 30.0
DFL 1) CP EEK
I O ICO i
T/STMsS [ l—PJ LAKE
\S CO F) C OS 2 M I W I MI 4OF MUSTISFO ()
IIE ALF6 2111204
4 0000 FEET DEPTH
00630 0062 006)0 00671
O TF TIME DFPTH ‘jI)’&NO3 TOT KJ L JH1-N PHOS—r)Jc Pi- OS-ToT
0M OF —TQT4L N T TAL ORT -,O
TO L Y FEET MG/L ‘Ar,/ l MG/L MG/L P MG/L .-
7P/09/2’ 00 10 0.127 1.650 0.O 4 O.00S 0.25”
77/10/15 If ’ 00 0.305 1.700 0.280 0.091 0.610
72/11/0° 16 10 0.773 1.000 0.0?3 0.570 C.o l O
7 /12/0Y 09 20 1.010 < J.’50 ( .‘ .50 3.c O O
71/01/07 0’ 50 0.03’-. ‘..10( ’ 2.000 1.600
73/0’/2k IP 00 0.126 ?.700 0.850 C.f”+0 0.79,
71/04/12 16 20 0.’OO 1.?00 C.0 07 0.130 0.39 0
1/0’./24 16 20 0.115 1.760 0.19R o. io 0.930
73/ 5/j 4 16 30 0.061 1.260 1.012 0. ’lO 0.660
71/05/31 17 00 3.074 1. ’P0 0.021 0.680 ô.760
71/06/? ? 10 15 0.230 4.200 C.014 ?.500
71/07/01 11 15 0.0 4 5.100 2.200 1.790 1.880
71/08/1? 10 15 0.0 7 9.100 5.?00 2.250
K /L3LIJc < I(U! ‘i T’) r L — - ‘
.‘ 1’ I)1C T !
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STOPET PErPIEvAL DAtE 74/10/02
SS41r 2 LS S S4 IB?
‘+1 ?3 10.0 088 4? 05.0
DtAD CkEE
5
T/Sjr\ISSIPPI L.t KE
E CO C V)S 1 MI S DF JUNEAU
11 PALES 2111204
.4 0000 FEET
BELOW SIP
DEPTH
00 3O
00 62 5
00610
flC671
0066 5
)ATE
T WE
DEPT 4
O?U’J03
TOT KJEL
fiH3—N
PHOS—DIS
OS—TOT
FP(W
W
—TOTAL
N
TOTAL
OPT -I()
L I
I)AY
FFET
MG/L
MG/L
MG/I.
M(VL
MG/L
7 /0 /?4
09
35
O.1’6
1. 1 50
0.051
0.00 5K
0.6 0
72/10/15
16
15
0.530
8.600
1.130
0.480
1.100
7 /1I/09
17
00
0.693
18.900
3.30C
6.800
10.000
71/01/07
11
00
1.300
R. 00
5.100
4.600
5.800
73/0?f?
18
30
0.014
0.640
4.R00
71/03/10
11
00
0.020
9.800
7.000
5.800
73/04/1?
13
00
0.980
11. 500
0.C5
4.500
5.000
73/04/24
16
50
2.100
6.100
0.920
?.600
3.600
71/05f1’4
17
00
0.390
13.600
0.870
5.800
7.500
71’05’31
17
30
0.310
9.400
1.100
1.600
‘ .S00
71/08/??
11
00
0.168
io. oo
0.037
4.900
73/07/03
71/08/1?
11
11
30
00
3.000
?.0F
?.50(’
8.70
0.018
( .560
0.620
4. 00
0.&50
c ’.400
J - J’L N 1 )
T - \“J I’,I)TC T u
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