U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
HERON LAKE
JACKSON OMY
MINNESOTA
REGION V
WORKING PAPER No, 103
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER • CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
•fcOPO 697.O32
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REPORT
ON
HERON LAKE
JACKSON COUNTY
MINNESOTA
EPA REGION V
WORKING PAPER No, 103
WITH THE COOPERATION OF THE
MINNESOTA POLLUTION CONTROL AGENCY
AND THE
MINNESOTA NATIONAL GUARD
DECEMBER, 1974
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1
CONTENTS
Page
Foreword I I
List of Minnesota Study Lakes lv, v
Lake and Drainage Area Map vi
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings 7
V. Literature Reviewed 12
VI. Appendices 13
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11
FOREWORD
The National Eutrophication Survey was Initiated in 1972 in
response to an Administration comitnient 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 foniiulating
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 [ g303(c)], clean lakes [ 3l4(a ,b)],
and water quality monitoring [ lO6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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111
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water 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 Minnesota Pollution Control
Agency for professional involvement and to the Minnesota National
Guard for conducting the tributary sampling phase of the Survey.
Grant J. Merritt, Director of the Minnesota Pollution Control
Agency, John F. McGuire, Chief, and Joel G. Schilling, Biologist,
of the Section of Surface and Groundwater, Division of Water Quality,
provided invaluable lake documentation and counsel during the course
of the Survey; and the staff of the Section of Municipal Works, Divi-
sion of Water Quality, were most helpful in identifying point sources
and soliciting municipal participation in the Survey.
Major General Chester J. Moeglein, the Adjutant General of
Minnesota, and Project Officer Major Adrian Beltrand, who directed
the volunteer efforts of the Minnesota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MINNESOTA
LAKE NAME COUNTY
Albert Lea Freeborn
Andrusia Beltrami
Badger Polk
Bartlett Koochiching
Bear Freeborn
Bemidji Beltrami
Big Stearns
Big Stone Big Stone, MN; Roberts,
Grant, SD
Birch Cass
Bi ackduck Bel trami
Blackhoof Crow Wing
Budd Martin
Buffalo Wright
Calhoun Hennepin
Carlos Douglas
Carrigan Wright
Cass Beltrami, Cass
Cleat-water Wright, Stearns
Cokato Wright
Cranberry Crow Wing
Darling Douglas
Elbow St. Louis
Embarass St. Louis
Fall Lake
Forest Washington
Green Kandiyohi
Gull Cass
Heron Jackson
Leech Cass
Le Home Dieu Douglas
Lily Blue Earth
Little Grant
Lost St. Louis
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V
LAKE NAME COUNTY
Madison Blue Earth
Malmedal Pope
Mashkenode St. Louis
McQuade St. Louis
Minnetonka Hennepin
Minnewaska Pope
Mud Itasca
Nest Kandiyohi
Pelican St. Louis
Pepin Goodhue, Wabasha, MN;
Pierce, Pepin, WI
Rabbit Crow Wing
Sakatah Le Sueur
Shagawa St. Louis
Silver McLeod
Six Mile St. Louis
Spring Washington, Dakota
St. Croix Washington, MN; St. Croix,
Pierce, WI
St. Louis Bay St. Louis, MN; Douglas, WI
Superior Bay St. Louis, MN; Douglas, WI
Swan Itasca
Trace Todd
Trout Itasca
Wagonga Kandiyohi
Walimark Chisago
White Bear Washington
Winona Douglas
Wolf Beltrami, Hubbard
Woodcock Kandiyohi
Zumbro Olmstead, Wabasha
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‘V
MURRAY
NOBLES
HERON LAKE
Lake Sampling Site
Tributary Sampling Site
Sewage Treatment Facility
Direct Drainage Area Limits
34
rth ing ton
Map Location
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HERON LAKE
STORET NO. 2739
I. CONCLUSIONS
A. Trophic Condition:
Survey data show that Heron Lake is eutrophic. Of the 80
Minnesota lakes sampled, 58 had less mean total phosphorus, 54
had less mean dissolved phosphorus, 68 had greater Secchi disc
transparency, 71 had less mean chlorophyll a, but only five had
less mean inorganic nitrogen.
B. Rate-Limiting Nutrient:
The lake data indicate nitrogen limitation during July and
August when N/P ratios were about 1/1 at the time of sampling.
C. Nutrient Controllability:
1. Point sources--During the sampling year, Heron Lake
received a total phosphorus load at a rate more than three times
the rate proposed by Vollenweider (in press) as “dangerous”; i.e.,
a eutrophic rate (see page 11). It is calculated that three
point sources--Heron Lake, Lakefield, and Worthington--contributed
nearly 41% of the total phosphorus load. However, even with a
100% reduction in phosphorus from the point sources, the loading
rate would still be more than twice the eutrophic loading rate.
With the rich agricultural land in the drainage area, it is not
likely that phosphorus reduction at the point sources would result
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2
in a significant improvement in the trophic condition of the
lake unless non-point sources can be controlled as well.
2. Non—point sources--The phosphorus exports of the Heron
Lake tributaries were somewhat high as compared to unimpacted
Minnesota streams studied elsewhere (e.g., the mean phosphorus
export of four Big Stone Lake* tributaries was 19 lbs/mi 2 /yr).
In all, it is estimated that non-point sources contributed
about 60% of the total phosphorus load to Heron Lake during the
sampling year.
* Working Paper No. 85.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 8,251 acres.
2. Mean depth: 3 feet.
3. Maximum depth: 5 feet.
4. Volume: 24,753 acre/feet.
5. Mean hydraulic retention time: 135 days.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage area* Mean flow*
Duck Lake outlet 7.6 mi2 1.3 cfs
Jack Creek 215.0 mi Ł 41.3 cfs
Okabena Creek 160.0 ml, 32.0 cfs
Ditch J-3 (E-l) 28.5 ml 5 5.6 cfs
Unnamed Stream (F-l) 3.6 mi7 0.7 cfs
Lake Flaherty outlet 7.5 mi, 1.4 cfs
Teal Lake outlet (H-l) 3.8 mi^ 0.7 cfs
Minor tributaries & 2
immediate drainage - 33.1 ml 9.2 cfs
Totals 459.1 mi2 92.2 cfs
Outlet -
Heron Lake outlet 472.0 mi2** 92.2 cfs
C. Precipitation***:
1. Year of sampling: 25.4 inches.
2. Mean annual: 21.7 inches.
t Schilling, 1973; DNR lake survey map (1964).
* Drainage areas are accurate within ±5%; mean daily flows are accurate
within ±10%; and ungaged flows are accurate within ±10 to 25% for drainage
areas greater than 10 mi 2.
** Includes area of lake.
*** See Working Paper No. 1, "Survey Methods".
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4
III. LAKE WATER QUALITY SUMMARY
Heron Lake was sampled twice 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 at the sin-
gle station on the lake (see map, page vi). During each visit, a depth-
integrated (near bottom to surface) sample was collected for phytoplank-
ton identification and enumeration, and a similar sample was collected
for chlorophyll a analysis.
The results obtained are presented in full in Appendix B, and the
data are summarized below.
A. Physical and chemical characteristics:
Mean Values
1st Sample 2nd Sample
Parameter ( 07/01/72) ( 08/30/72 )
Temperature (Cent.) 25.0 22.0
Dissolved oxygen (mg/l) 10.8 8.4
Conductivity (iimhos) 940 875
pH (units) 8.9 9.2
Alkalinity (mg/i) 152 104
Total P (mg/l) 0.366 0.239
Dissolved P (mg/i) 0.204 0.105
NO + NO (mg/l) 0.050 0.060
Am onia mg/l) 0.060 0.100
Chlorophyll a (pg/i) 41 181
Secchi disc tinches) 18 6
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5
Mm. for Max. for Mean for
Parameter all samples all samples all samples
Temperature 22.0 25.0 23.5
Dissolved oxygen 8.4 10.8 9.6
Conductivity 875 940 908
pH 8.9 9.2 9.0
Alkalinity 104 152 128
Total p 0.239 0.366 0.302
Dissolved P 0.105 0.204 0.154
NO + NO 0.050 0.060 0.055
Am onia 0.060 0.100 0.080
Chlorophyll a 41 181 111
Secchi disc 6 18 12
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Number
Date Genera per ml
07/01/72 1. Oscillatoria 13,575
2. Fragilaria 815
3. Synedra 317
4. Navicula 226
5. Cryptomonas 226
Other genera 452
Total 15,611
08/30/72 1. Oscillatoria 7,602
2. Merismopedia 996
3. Cryptomonas 362
4. Cyclotella 362
5. Flagellates 272
Other genera 768
Total 10,362
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6
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 a
Date Number ( pg/i )
07/01/72 01 40.9
08/30/72 01 181.2
C. Limiting Nutrient Study:
Heron Lake was not sampled in the fall of 1972 when ordinarily
an algal assay sample would have been collected. However, the lake
data indicate nitrogen limitation on both sampling visits (N/P ratios
were near 2/1).
The potential primary productivity would likely have been high
based on the level of nutrients in the lake.
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7
IV. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Minnesota 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
October, 1972, and was completed in September, 1973.
Through an interagency agreement, stream flow estimates for the year
of sampling and a “normalized” or average year were provided by the Minne-
sota 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 imediate drainage” (“ZZ” of U.S.G.S.) were estimated by
using the means of the nutrient loads, in lbsfmi 2 /year, at stations C-i,
G-1, and H-i and multiplying the means by the ZZ area in mi 2 . Except for
Ditch J-3, the tributary nutrient loads given are those measured minus
point sources, if any. The estimated nutrient loads for Lakeland exceeded
those measured in Ditch J-3, and the non-point loads for the Ditch were
estimated in the same way as the ZZ loads.
The operators of the Heron Lake, Lakefield, and Worthington wastewater
treatment plants declined to participate in the Survey, and nutrient loads
were estimated at 2.5 lbs P and 7.5 lbs N/capita/year.
* See Working Paper No. 1.
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8
2. Known industrial - None
Receiving
Water
Heron Lake
Ditch J-3
Ditch J-12 to
Okabena Creek
t Anonymous, 1974.
* Estimated at 100 gal/capita/day.
A. Waste Sources:
1. Known municipalt -
Name
Heron Lake
Lakefield
Worthington
Pop.
Served
777
1 ,820
9,825
Treatment
stab. ponds
trickling
filter
trickling
filter
Mean
Flow (mgd )
0.078*
0.182*
0.982*
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9
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs —
lbsP/ %of
Source yr total
a. Tributaries (non-point load) -
Duck Lake outlet 1,010 1.3
Jack Creek 16,210 21.2
Okabena Creek 21 ,970 28.8
Ditch J-3 (E—l) 1,790 2.3
Unnamed Stream (F-l) 200 0.3
Lake Flaherty outlet 610 0.8
Teal Lake outlet 120 0.2
b. Minor tributaries & immediate
drainage (non-point load) - 2,080 2.7
c. Known municipal STP’s -
Heron Lake 1,940 2.5
Lakefield 4,550 6.0
Worthington 24,560 32.2
d. Septic tanks - Unknown
e. Known industrial - None -
f. Direct precipitation* - 1,290 1.7
To a1 76,330 100.0
2. Outputs -
Lake outlet - Heron Lake outlet 49,450
3. Net annual P accumulation - 26,880 pounds
* See Working Paper No. 1.
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10
Source
a. Tributaries (non-point load)
Duck Lake outlet
Jack Creek
Okabena Creek
Ditch J-3 (E—1)
Unnamed Stream (F-i)
Lake Flaherty outlet
Teal Lake outlet
b. Minor tributaries & immediate
drainage (non-point load) -
c. Known municipal SIP’s -
Heron Lake
Lakefiel d
Worthi ngton
d. Septic tanks - Unknown
e. Known industrial - None
f. Direct precipitation* -
Total
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
lbs NI
yr
13,810
443,450
438,260
55,000
13,050
16,190
5,960
% of
total
1.1
36.3
35.9
4.5
1.1
1.3
0.5
63,870 5.2
5,830
13,650
73,690
79,490
1 ,222,250
0.5
1.1
6.0
6.5
100.0
2. Outputs —
Lake outlet - Heron Lake outlet 753,640
3. Net annual N accumulation - 468,610 pounds
* See Working Paper No. 1.
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ii
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary lbs P/mi 2 /yr lbs N/m1 2 /yr
Duck Lake outlet 133 1,817
Jack Creek 75 2,062
Okabena Creek 137 2,739
Unnamed Stream (F-i) 56 3,625
Lake Flaherty outlet 81 812,159
Teal Lake outlet 32 1,568
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Voilenweider (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 9.3 3.3 148.1 56.8
grams/m’/yr 1.04 0.37 16.6 6.4
Vollenweider loading rates for phosphorus
(g/m 2 /yr) based on mean depth and mean
hydraulic retention time of Heron Lake:
“Dangerous” (eutrophic rate) 0.30
“Permissible” (oligotrophic rate) 0.15
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V. LITERATURE REVIEWED
Anonymous, 1974. Wastewater disposal facilities inventory. MPCA,
Minneapolis.
Schilling, Joel, 1973. Personal communication (lake morphometry).
MPCA, Minneapolis.
Vollenweider, Richard A., (in press). Input-output models. Schweiz
A Hydrol.
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13
VII. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
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T lRlJTAQ FLOW IrJFO. MAT1UN FOR MINNESOTA 10/30/74
LA(F CO’3E 7739 HERON LAK
TOTAL P ATNA( ,F A’EA OV LAKE 672.011
SLJP—1)PA I’ IAGF NOWNALIZEC) FLOWS
TPIRIITARY APEA J ’) FE-I ‘4A AP U8Y JUN JUL AUG SEP OCT NOV DEC MEAN
?7 9AI 477.00 9.I J 18.1.) 162.00 ?39.50 170.00 245.50 106.30 46.40 35.00 34.50 22.60 15.40 92.22
?719 I 7.65 0.07 C.I0 1.56 1.17 7.67 4.08 1.81 0.67 0.81 0.50 0.27 0.19 1.33
77 19C1 ?16.0O 4. ’ . 7.69 76.00 1OS.uO 76.40 109.00 47.50 20.50 16.00 15.40 9.70 7.11 41.28
?739fl 1 160.00 3.11 6.14 67.00 77..iO 56.70 81.10 36.90 16.30 13.80 11.40 7.05 6.17 32.06
?739FI 28.50 0.6? 0.90 11.70 12.b0 Q•9 14.70 6.87 2.92 3.08 1.96 1.11 1.15 5.65
?739F 1 1.57 0.fl 0.fl7 0.914 1.43 1.29 1.92 0.92 0.37 0.48 0.26 0.13 0.13 0.67
27 1 9f•I 7. 3 0.OH 0.17 1.71 3.1? 2.67 4.0? 1.89 0.75 0.93 0.52 0.28 0.22 1.36
?739H 1 l.7 0.05 .0F, 1.01 1.5? 1.32 2.04 0.90 0.32 0.42 0.24 0.13 0.11 0.68
271977 46.00 0.9 1.70 16.30 24.10 17.00 24.20 10.70 4.67 3.50 3.40 2.21 1.45 9.20
SUMMARY
TOTAL DRAINAC,E ARtA OF LAKE = 472.00 TOTAL FLOW IN = 1104.56
SUM OF SUH—f) AINAc,E AREAS = 472.04 TOTAL FLOW OUT = 1105.10
MEAN MONTHLY FLOWS AND OAILY FLO.qS
TRIRUTARY MONTH YFA° MEAN FL0 r) y FLOW DAY FLOW RAY FLOW
?739A 1 10 7? 15.10 14 15.00
II 7 52.00 4 60.00
I’ 77 3Q . 71 ) 3 19.00
73 41.90
7 73 48.40 4 65.00
1 13 437.00 11 3 9.O0
4 73 l 5.0O 14 ?03.O0 20 203.00
S 73 QQ 14) 4 132.00 1’ 63.00
1, 73 76.UO 19 140.00
7 13 IR.?0 iS IN.00
8 71 6.54 19 .O0
9 73 5•74 5 3.30
?739H 1 10 7’ 0.’ ’ 14 0.20
I I 7? 0.62 4 0.70
I ’ 7’ 0.17 3 0.50
I 71
7 0.77 4 0.40
1 73 4.1’ 11 3.70
7•57 8 2.70 20 2.70
5 71 1.4 ’ 6 2.10 19 1.00
6 71 1.30 ) 1.30
7 71 0.11 IS 0.10
8 7 1 0.C3 19 0.11
9 73 0.1’ 8 0.09
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TNIJT Y FLO d INFOOMATION FOP MINNESOTA 10/30/74
LA CODE 7739 HEPON LAKE
MEAN MONTHLY FLOWS aNr) DAILY FLOWS
TPIAUTAPY MONtH YEAP MEAI FLOW DAY FLOW DAY FLOW DAY FLOW
?73QCl 10 72 6.78 IL. 6.60
II 7’ ??.‘O 4 26.00
I? 7? 13.90 3 18.00 12 16.00
I 73 1P.flO
7 73 20.50 4 28.00
1 73 201.00 11 181.00
6 73 .35.00 A 88.00 20 88.00
5 71 40.50 4 59.00 19 28.00
6 73 34.50 19 35.00
7 73 P•Q8 15 7.70
A 71 ?.97 19 3.50
9 73 ‘.40 A 1.70
273901 18 7? 5.0’ 14 4.90
1 1 72 16.IC 4 19.00
1? 7? 12.00 3 16.00
73 16.20
73 16.90 4 23.00
3 73 178.00 11 160.00
4 71 52.60 A 65.00 20 65.00
5 73 38.00 4 44.00 19 21.00
6 73 75.80 19 26.00
7 73 6.27 15 6.00
8 73 ?.28 19 2.80
73 ?.07 8 1.50
273 9E 1 Jo 72 0.96 14 0.80
11 7? 754 4 2.90
1’ 7? 7 ’4 3 2.90
1 73
73 ‘.39 4 3.20
1 71 31. 0 II 28.00
4 7] 10.70 4 11.00 20 11.00
5 13 S.’9 ‘. 7.70 19 3.70
6 71 6.67 19 4.90
7 73 1.17 15 1.10
P 73 0.41 19 0.50
71 0.4” 9 u.13
?71 9F 1 10 72 0.11 14 0.10
II /d 8.30 4 0.30
I? 7’ 0. ’S 3 0.30 0.30
1 73
2 73 8.19 4 0.20
3 11 2.60 II 2.30
4 71 1.16 e 1.20 20 1.20
5 73 0. q 4 1.00 19 0.50
6 71 0.61 19 0.60
7 73 0.16 15 0.15
9 73 0.05 14 0.06
9 71 0.07 8 0.05
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TRIBUTARY ULO It’iFu M TION FO -1t NESOT& 1O/30/7 ’
LA’ E CODE p739 HERON LAKE
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLO,I ‘)AY FL(,W DAY FLOW
273961 10 7? 0.?3 14 0 .’O
II 72 0.64 4 0.70
1? 72 0.43 3 0.60
1 73 0.34
2 73 0.3? 4 0.40
3 73 4.53 11 4.1 )
4 73 2.53 8 2.60 2.60
5 73 1.4? 4 ?.10 1.00
1, 73 1.28 19 1. O
7 73 0.3’ 15 1.31
8 73 0.11 19
9 73 0.14 8 0.10
?739H1 10 72 0.11 14 0.10
11 72 0.30 4 0.30
17 72 0.21 3 0.30
73 0.21
2 73 0.16 4 0.20
1 73 ?.68 11 2.40
4 73 1.23 8 1.30 20 1.30
5 73 0.70 4 1.00 IQ 0.50
6 73 0.65 19 0.70
7 73 0.15 15 0.14
8 73 0.04 19 0.05
9 73 0.06 8 0.04
2739Z7 10 7? 1.50 14 1. 0
11 7? 5.06 4 5. 0
1 72 2.83 3 3.63 ‘4 .3.60
1 73 4.17
73 4.5? 4 6.19
3 73 43 7 1 3 .00
4 73 19.S0 8 20.00 2C ?0.00
5 73 9.01 4 13.00 1 6.30
6 73 7.68 19 M.00
7 73 1.82 15
8 73 0.65 19
9 73 0.53 8
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APPENDIX B
PHYSICAL and CHEMICAL DATA
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ST )PET ET’ 1EVAL OAT’- 74/11/30
DATE
FPO’ -
TO
Ac,. 9J
• 2J
739O 1
‘3 47 00.0 O S 17 00.0
P-itPON LAKE
27053 I1NNFSOTA
I [ E ALES
211 I 2u2
0005 FEET DE ’T-1
OATE
FR 0
TO
T1’ - E DcDT_1
OF
jAY FEET
77/07/01 17 30 0000
7?/0 /30 l 40 0000
( lu
,ATE
00300
DO
(‘0077
T’ - ANSP
00094
C iDUCTVY
00400
PH
00410
1 ALK
00630
NO? NO3
00510
NH3—N
00665
PHOS—TOT
00666
PHOS-OIS
TEMP
SECCHI
FIELD
CACOJ
N—TOTAL
TOTAL
CE !T
4G/L
INCHES
MICROMHO
SO
M ’ /L
MG/L
M6/L
MG/L P
MG/L p
19
6
960
R75
0.366
0.23’
0.204
0.105
25.0
0
3? 1 7
C -4L ’HYL
A
IJC, /L
M.90
9.14
TIME DEPTH
0F
DAY FEET
152
1u4
0 • 050
0.060
72/07/01 17 10 0000
7?/0 3/30 ]‘ ‘0 0000
0.060
o • 100
J VALUE KN0 I tO i-si 1 -
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APPENDIX C
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
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cT) c T T-T /t •) iT ; 7Le/V: /: 7
?7’- 1A 1 ( S276 1A1
3 10.0 0- 32 00.0
OUTLET C-JErK
•L SFAP ’JC
)/L u
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T / . 7 / i ‘I 7
?7t ,1 141 L5?7 1A1
45 J’ 30.0 095 24 00.0
UNNAMED DITCH To Lt MINNEWASKA
27 7.5 GLENW000
1/LoNE MP4NEWASNA
rIWYS 2 /29 w GLENW000 HELOWSrP
I1EPALES 2111204
4 0000 FEET DEPTH
(io6 lO 00671 00 6S
I V F ‘J iCj’-. ’U T) r. JFL Nr13—N PHOS—DIS PHOS—T)T
—1 J i IOTAL O THO
T ) E1 I r 1C /L NG/L P 1( /L P Mb/L
7?/1 /FZ ‘ C .O’)G 0.20u 0.154 1.100 1.130
7?/I I/i 1) 1.7:0 5. oo 0.054 0.255
73/ ’/0’. 11 t ..7J0 0. U 0.470 0. 60 1.100
73/03 ,1’, 1 u 3.100 0.d30 J.13 0.805 iJ.bS0
71/04/1 10 .iS 2.200 2.S70 o.710 1.000 1.200
73/ ” ./1 I i -+t 3.500 1.Fi ’ 0 1.570
7 / S/2t. II . ‘.3 ( 3. 30 1.680 1.435 1.600
7 /f /3 . I u. 7 .3i 0 i. 30 1.750 1.300 1.57u
73 / ’ )’- ”t) I ’ u L.b 0 l.A30 1.600 2.00 )
71/17 /li Li .3 ‘.70) 1.500 1.740 1 .950
71/ °/ 7 L ‘ • . i a 3. 100 1.370 ‘.000 ‘.1)0
u i.10 ) 1.000 2.100 3.15)
-------
STC PET - NV i r I ? .‘l / 7
7 7’ 1C1 LS?751C1
4- 3’ 00.0 0 25 00.0
LICAN LAKE. /LAKE MINNEWASKA CN
?7 7. (,LENv OOO
T’L E MINN WASKA
?‘I) OAO XING SW OF LONG BEACH
)1E AL S 2111204
4 0000 FEET 1)FPTrI
Wul-10 00671 006b5
OAT TI , ,i ‘l N(Y” ’IQ1 TOT rc.JEL ‘ -1j— - i ) —flJS PHOS—TOT
N TOFAL Ur T -U)
TO i Ft 1 ‘(/L (‘/L ‘
77/ l”’ I ‘ i I., ).I-6 1. 30u .0lQ
77’11’l 11 5 “.177 1.540 ‘i.00 0.017 0.040
7’/i ’ ’) 17 . Ii- 1. 40 . 31 J.O0-
71”7’0.- 11 ‘-‘ ..I G 1.701 .- C ’ O.0O c C .03S
7 /i11/F’ I.’ C 3. ’ 90 1.7 C ).110
71/C) /I- ‘.01’ K 1.470 . )9F : 0.0 1 0 ,065
71/ 6/1u 11 Su 1.3?0 1 .06u 0.050
7 /1S/2 (1 0 .O11 1.470 r .()nsK
7 -’0 / ’ 11 ,0 ( .flI ’ 1.J0O ,.( ‘(-‘u J.011 3. ’) 55
1?4 f’.0 3 1,3 O J . ’ 7S i ,. ) 1, 0.0 +0
71/ )7/17 Ii “5 1.540 o.o s o. 06s
71/ )’ ’07 I?L_0 ;.CI ’ l,hl) o.0l 0.060
71/’) /)J I-. ‘5 .01r 2.700 ‘.C - 0.011 0.O Su
K VALuE KNOWN Tfl
LESS THAN INiTC TEi
-------
APPENDIX C
TRIBUTARY ana WASTEWATER
TREATMENT PLANT DATA
-------
STORtT ETRLEVAL DATE 75/03/03
2739A1 LS2739A1
43 49 00.0 095 15 30.0
.iE 0N LA S OIJILET
27 7.5 HE OI 1 LAtSE
0/MERON LAPSE
ST rlwY 60 I DG UETw hERON Lr AMO IL0E (
11 E ’ALIS 211120’.
4 0000 FEET OEPTP-$
00630 00625 0u6 1 0 00671 00665
DAft TIME DE Tri ‘W2 .NO3 TOT KJEL NiN3N PHOSQIS PHOS—TUT
Fi- JM OF N—TOTAL N TOTAL UPT ’- O
To DAY FEET M&/L MG/L MG/L MG/L P HG/L r
72/10/14 09 00 0.020 2.015 0.160 0.210 0.330
72/11/04 10 40 0.580 1.800 0.280 0.147 0.220
73/03/11 08 45 1.06 ) 2.940 0.720 0.270 0.430
73/03/23 lb ‘5 2.900 1.9 u 0.950 0.115 0.250
73/. 4/08 09 45 3.700 2.600 0.160 0.063 0.230
73/04/20 15 30 3.400 2.300 0.063 0.060 0.210
73/uS/U’. 17 15 2.400 4.300 O. Obb 0.033 0.221
73/05/19 10 00 1.300 3.100 0.019 0.032 u.210
73/06/19 08 00 0.147 4.100 0.056 o.ooe 0.410
73/07/15 09 00 3.019 4.200 0.042 0.09’. 0.400
73/08/19 10 15 0.039 3.300 0.420 0.147 0.195
73/09/Ob 09 20 0.250 3.990 0.470 0.168 ).47 0
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S1URLT ?ET IEVAL DATE 75/03/03
2739b1 L527398 1
‘ .3 k 30.0 095 1 00.0
DUCK LK OUTLET TO HLMON LK
27 1.5 r Ei ON LAKE
T/HERON LAKE
sr H ’f 60 .75 M I NE OFHE
-------
S1URET RETMIEVAL DATE 75/03/u3
2739C1 LS2739C1
43 46 00.0 095 19 00.0
JACK CMEEK
27 7.5 -iE ON LAKE
1/ -4EI 0N LAKE
Co -iwY ‘ b i)G 1.5 M I OF p-IERUN LAKE
1IEPALES 211120’.
4 0000 FEET DEPTI
00630 00625 00610 00671 00665
DAlE TIME DEPT-I NO2 NO3 TOT KJEL NH3—N PhOS—DIS PHOS—TOT
FROM OF N-TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L M&/L MG/L P MG/L P
72/10/14 09 40 0.030 1.675 0.075 0.011 0.190
72/11/04 10 50 5.500 3.200 0.270 0.240 0.610
72/1 /12 08 Is 7.500 0.330 0.066 0.052 0.093
73/03/11 09 20 1.400 2.300 0.560 0.230 0.37
73/0i/23 16 15 3.700 1. 39O 0.138 0.079 0.230
73/04/0w 09 30 5.000 2.000 0.069 0.042 0.170
73/03/04 17 40 6.200 1.500 0.006 0.015 0.070
7j/0S/19 09 15 5.800 2.300 0.075 0.015 0.110
73/06/19 08 30 .80O 1.400 0.047 O.O 7 0.2 ’ . )
73/07/15 09 30 0.550 1.800 0.092 0.027 0.22.,
7J/Qd /19 09 45 0.030 3.100 0.067 0.066 0.080
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STJRET P 1TRIEVAL DATE 75/03/03
2739D1 LS2739 01
‘.3 ‘.5 00.0 095 1 00.0
O , At3 A CREEr
27 CO 32
T/HEkON LAK
CO HWY 9 E RD(, N LOGE OF OKA 3ENA
IIEPALES 2111204
4 0000 FEET OEPTH
00630
00625
00610
00671
00655
DATE
TIME
DEPTH
N026N03
TOT
-------
STORET RtTRIEVAL DATE 75/03/03
2739E1 LS2739E1
43 41 30.0 09 13 30.0
UNNAMED Tr l 10 S PAkE S HERON L
27 Co ‘ 32
T/rtERUN LAPSE
CO hw( 20 br L)G 2.5 M I WNW OF LAKEFIELD
I1EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 006 S
DATE TIME DEPT i NO2 NO3 TOT KJEL N -l3-N PHOS-DIS PHOST’JT
FROM OF N-TOTAL N TOTAL ORTHO
TO UA FEET MG/L MG/L MG/L MG/L P MG/L P
72/10/14 10 05 0.450 2.’e?5 0.320 0.126 0.294
72/11/04 11 10 .300 0.980 0.132 0.200 0.3 9o
73/03/li 08 55 4.200 3.700 0.660 0.357 0.510
73/CJ/23 15 45 10.200 2 .2u0 0.005K 0.096 0.130
73/04/08 09 05 12.400 1.100 0.105 0.037 0.090
7j/04/20 16 30 12.000 0.008 0.031 0.040
73/oSlO’. ta 00 13.000 0.500 0.026 0.034 0.070
73/05/19 10 30 14.400 1.000 0.088 0.031 0.113
73/06/19 09 00 14.700 1.380 0.154 0.160 0.2)0
7j/07/15 10 00 8.300 1.260 0.115 0.095 0.1
73/v8/19 09 15 4,9 0Q 1.130 0.180 0.200 0.2 0
K OALUE KNOWN TO tSE
LESS THAN INDIC 1ED
-------
ST0. ET RETRIEVAL DATE 75/03/03
2739F1 LS2739F 1
43 41 00.0 09i 10 i0.0
UNNAMED ThLd TO SE END S HEI ON L
27 CO 32
T/HERON LA,cE
sr -iwy 8b A1NG N Eubi. OF LA EFIELt)
11EPALES 211120’.
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
OAIt. TIME DEPTr N02&N03 TOT t JEL NH3-N PMOS-DIS PHOS—TOT
FNOM OF ri-TOTAL N Tt)TAL ORTrIO
TO DAY FEET MG/L M&/L MG/L M0/L P MG/L P
72/10/!’. 10 15 2.000 0.580 0.049 0.082 0.105
72/11/04 1,1 15 8.900 o.iouic 0.007 0.092 0.115
72/12/08 08 10 10.400 0.700 0.017 0.096 0.210
73/03/11 08 10 5.900 3.500 0.650 0.400 0.590
73/03/23 17 30 10.200 0.4?0 O.OOStc 0.115 0.130
73/04/08 09 00 12.000 0.310 0.018 0.057 0.065
7 j,’04/ 2 O 16 45 12.000 0.76u 0.018 0.052 0.055
73/05/04 16 ‘.0 12.600 0.240 0.005K 0.050 0.065
73/05/19 09 ‘.5 1 1.200 0.300 0.020 0.050 0.065
73/06/19 09 15 17.000 1.470 0.054 0.105 0.175
73/07/AS 10 15 12.000 0.150 0.021 0.115 0.135
73/08/19 09 00 7.400 2.000 0.178 0.105 0.125
T3/09/08 08 00 2.2u0 1.340 0.138 0.280 0.320
K VALUt SNOWN To BE
LESS THAN INDICATEL)
-------
sTORE! RETRIEVAL DATE 75/03/03
2739G 1 LS273961
‘ .3 44 30.0 095 13 00.0
Li< FLAHE9TY/S HEkON LK CONPIt CT1O
27 Co i 32
T/i-i€iWN LA$.t
CO HWY ‘. XING .5 M W OF Ll FLAHERrY
1IEPALES 2111204
0000 FEET DEPTH
00630
00625
00610
00671
00665
DArE
TIME
DEPTH
N02 N03
lOT KJEL
Nr13-N
PtIOS—DIS
‘>hOS—TOT
FROM
OF
N—TOTAL
N
TOTAL
O Tt-iO
TO
DAY
FEET
MG/L
P4G/L
HG/L
MG/L P
M(.,/L
72/10/14
10 30
0.070
2.800
0.170
0.016
0.240
72/11/04
11 25
1,400
1.600
0.394
0.138
0.260
73/02/04
08 20
0.294
4.000
1.300
0.005K
0.075
73/03/11
08 30
0.480
1.980
0.520
0.037
0.150
73/03/23
17 00
0.740
8.700
0.138
0.019
0.16u
73/04/08
09 15
0.950
3.800
0.050
0.031
0.160
73/04/20
17 00
1.000
3.650
0.105
C.050
O.19
13/05/04
16 55
(,.730
0.150
0.044
0.190
73/05/19
08 45
2.600
3.100
0.710
0.048
U.i30
73/06/19
09 30
7.000
2.800
0.370
0.036
0.142
73/07/15
10 30
0.019
11.000
4.500
0.160
0.760
73/08/19
10 30
0.078
13.300
4.625
0.105
0.1d i
73/O /08
09 40
2.000
3.900
1.000
0.260
0.490
K VALUE KNOWN TO 8E
Lt SS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/03/03
2739-11 LS2739H1
43 46 00.0 095 14 30.0
TEAL LAKE/rlE 0N LAKE CONNECTION
27 Co #32
1/HERON LAKE
CO HWY 2 XING .5 M I E OF HERON LAKE
1 IEPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PPIOS—DIS PHOS-TOT
FROM OF N—TOTAL N TOTAL O Tr4O
TO DAY FEET M(,/L MG/L MG/L MG/L P MG/L P
72/10/14 10 45 0.104 1.325 0.100 V.015 0.170
72/12/03 08 00 0.273 2.000 0.480 0.005K 0.033
73/03/11 08 50 2.200 2.500 0.450 0.210 0.345
73/ 3/23 17 15 3.800 3.300 0.005K 0.030 0.060
7j/0 4 /O8 09 30 5.9u0 1.750 0.115 0.014 0.03u
73/04/20 17 15 5.800 0.920 0.042 0.014 0.025
73/05/0’. 17 00 5.800 0.950 0.022 V.014 0.040
73/05/19 09 00 2.600 3.100 0.130 0.015 0.050
73/Ob/19 09 45 5.400 0.585 0.048 0.030 0.06 ,
73/ui/IS 10 45 0.080 1.380 0.113 0.025 0.14S
73/Od/19 10 30 O.0b6 1.600 - 0.120 0.120 0.125
K VALUE KNOWN TO BE
LESS THAN INDICATED
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STOPET PFTc EVAL DATE 74/10/30
?73951 P0273951 P000777
43 47 00.0 095 18 30.0
HERON LAKE
27063 7.5 LAKE NERON
T/HERON LAKE
UNNAMED CREEK
I1EPALES 2141204
4 0000 FEET DEPTH
00630 006?5 00610 00671 00665 50051 50053
DATE TIME DEPTH ‘J07 NO3 TOT KJEL NH3-N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF , 1—TOTAL N TOTAL ORTHO RATE FLOw—MGD
TO DAY FEFT MC,/L MG/L MG/L MG/L P MG/L P INST MGD MONTHLY
7 /O4/03 09 00 0.670 11.000 0.176 0.680 1.725 0.085
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