U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
ON
LAME BLOOMINGTON
MdfAN COUNTY
ILLINOIS
EPA REGION V
WORKING PAPER No, 296
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
-------
ON
LAIC BLDOMINGTON
McLEAN COUNTY
ILLINOIS
EPA REGION V
WORKING PAPER No, 296
WITH THE COOPERATION OF THE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
AND THE
ILLINOIS NATIONAL GUARD
JUNE, 1975
776
-------
CONTENTS
Page
Foreword ii
List of Illinois Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
-------
ii
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 [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)j,
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
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 Illinois Environmental
Protection Agency for professional involvement and to the
Illinois National Guard for conducting the tributary sampling
phase of the Survey.
Dr. Richard H. Briceland, Director of the Illinois Environ-
mental Protection Agency; and Ronald M. Barganz, State Survey
Coordinator, and John J. Forneris, Manager of Region III, Field
Operations Section of the Division of Water Pollution Control,
provided invaluable lake documentation and counsel during the
Survey, reviewed the preliminary reports, and provided critiques
most useful in the preparation of this Working Paper series.
Major General Harold R. Patton, the Adjutant General of
Illinois, and Project Officer Colonel Daniel L. Fane, who directed
the volunteer efforts of the Illinois National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
-------
iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF ILLINOIS
LAKE NAME
Baldwin
Bloomington
Carlyle
Cedar
Charleston
Coffeen
Crab Orchard
Decatur
DePue
East Loon
Fox
Grass
Highland Silver
Holiday
Horseshoe
Long
Lou Yaeger
Marie
Old Ben Mine
Pistakee
Raccoon
Rend
Sangchris
Shelbyville
Slocum
Springfield
Storey
Vandalia
Vermilion
Wee Ma Tuk
Wonder
COUNTY
Randolph
McLean
Bond, Clinton, Fayette
Lake
Coles
Montgomery
Jackson, Williamson
Ma con
Bureau
Lake
Lake
Lake
Madison
LaSalle
Madison ,
Lake
Montgomery
Lake
Franklin
Lake, McHenry
Marion
Franklin, Jefferson
Christian
Moultrie, Shelby
Lake
Sangamon
Knox
Fayette
Vermilion
Fulton
McHenry
-------
LAKE BLOOMINGTON
Tributary Sampling Site
X Lake Sampling Site
Sewage Treatment Plant
Drainage Area Boundary
Map Location
-------
LAKE BLOOMINGTON
STORE! NO. 1703
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Bloomington is eutrophic.
It ranked sixteenth in overall trophic quality when the 31
Illinois lakes sampled in 1973 were compared using an index
of six parameters*. Three of the lakes had less and one had
the same median total phosphorus, nine had less and one had
the same median dissolved phosphorus, all had less median
inorganic nitrogen, 16 had less mean chlorophyll a_t and six
had greater mean Secchi disc transparency. Depression of
dissolved oxygen with depth occurred at both sampling stations
in August and at station 1 in October, 1973.
Survey limnologists reported emergent aquatic vegetation
along the shorelines near station 2 and noted a slight blue-
green algal bloom in August. Reportedly, severe algal blooms
have not occurred in Lake Bloomington (Ferguson, 1975).
B. Rate-Limiting Nutrient:
The algal assay results and mean lake N/P ratios of over
140/1 indicate that the lake is phosphorus limited.
* See Appendix A.
-------
C. Nutrient Controllability:
1. Point sources—During the sampling year, point sources
accounted for only 5% of the total phosphorus load to the lake.
The East Bay Camp-Conference Center wastewater treatment plant
contributed 3% of the phosphorus load, and the Towanda Elemen-
tary School was estimated to have contributed about 1%. The
owners of the East Bay Camp-Conference Center plan to install
phosphorus removal facilities in the near future (Stieferman,
1975).
The present total phosphorus loading rate of 2.17 g/m2/yr
is nearly three times the rate proposed by Vollenweider (Vollen-
weider and Dillon, 1974) as a eutrophic rate (see page 13).
Even if all known point source phosphorus loads were eliminated,
the loading rate would still be more than 2h times the eutrophic
rate; however, since Lake Bloomington is phosphorus limited, any
reduction of phosphorus input should result in at least some
improvement in the trophic condition of the lake.
2. Non-point sources—It is calculated that about 94% of
the total phosphorus load to Lake Bloomington was contributed
by non-point sources during the sampling year. Money Creek
contributed nearly 59% of the total load.
Although the phosphorus export rate of Money Creek does not
appear to be excessive (see page 12), the phosphorus contribution
-------
of this stream alone would result in a loading rate more than
1% times the eutrophic rate.
It is noted that agricultural operations are estimated to
involve about 60% of the Money Creek drainage area (Wang and
Evans, 1970).
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 1.97 kilometers2.
2. Mean depth: 5.0 meters.
3. Maximum depth: 10.7 meters.
4. Volume: 9.850 x 106 m3.
5. Mean hydraulic retention time: 104 days.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Money Creek 126.9, 0.8
Minor tributaries &
immediate drainage - _51.1 0.3
Total 178.0 1.1
2. Outlets -
Bloomington municipal usage - 0.3
Money Creek 180.0 0.8
Total 180.0** 1.1
C. Precipitation***:
1. Year of sampling: 108.6 centimeters.
2. Mean annual: 92.1 centimeters.
t Table of metric conversions—Appendix B.
ft Forneris, 1973.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
-------
III. LAKE WATER QUALITY SUMMARY
Lake Bloomington was sampled three times during the open-water
season of 1973 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 from a number of depths at each
station (see map, page v). During each visit, a single depth-integrated
(4.6 m or near bottom to surface) sample was composited from the stations
for phytoplankton identification and enumeration; and during the first
visit, a single 18.9-liter 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 11.0 meters at station 1 and 5.2 meters at station 2.
The results obtained are presented in full in Appendix D and
are summarized in the following table.
-------
PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (OG/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 5/11/73)
2 SITES
CHEMICAL CHARACTERISTICS FOR
STORET CODE 1703
LAKE BLOOMINGTON
2ND SAMPLING ( 8/ 9/73)
2 SITES
3RD SAMPLING (10/17/73)
2 SITES
RANGE
15.5
8.1
460.
8.2
157.
0.086
0.059
6.090
0.040
0.300
6.150
6.390
8.1
0.5
- 17.4
9.6
- 510.
8.3
- 174.
- 0.110
- 0.066
- 8.260
- 0.090
- 0.500
- 8.300
- 8.760
- 13.9
0.5
MEAN
16.4
9.0
473.
8.3
162.
0.093
O.Cbb
7.476
0.057
0.429
7.533
7.904
11.0
0.5
MEDIAN
16.3
9.0
460.
8.3
160.
0.090
0.066
7.690
0.060
0.400
7.780
8.090
11.0
0.5
RANGE
16.4
0.4
424.
7.4
163.
0.026
0.004
0.690
0.060
0.900
2.490
3.990
10.1
1.0
- 28.7
9.0
- 518.
8.5
- 242.
- 0.210
- 0.095
- 6.880
- 1.800
- 3.300
- 7.000
- 8.130
- 11.6
1.8
MEAN
25.1
4.9
484.
8.0
184.
0.063
0.019
5.692
0.330
1.362
6.022
7.055
10.8
1.4
MEDIAN
27.0
5.7
495.
7.9
175.
0.039
0.007
6.815
0.120
1.100
6.905
7.790
10.8
1.4
RANGE
15.3
0.2
378.
7.5
151.
0.033
0.013
0.080
0.050
0.700
2.730
3.380
56.0
0.6
- 19.1
8.2
- 426.
8.5
- 258.
- 0.059
- 0.035
- 2.720
- 3.210
- 4.100
- 3.290
- 4.180
- 57.5
1.0
MEAN
18.6
6.3
389.
8.3
167.
0.044
0.020
2.388
0.483
1.190
2.871
3.578
56.8
0.8
MEDIAN
18.9
7.4
386.
8.4
158.
0.045
0.019
2.685
0.165
0.850
2.855
3.540
56.8
0.8
-------
B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
05/11/73
08/09/73
10/17/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Stephanodiscus sp.
Meloslra sp.
Flagellates
Cryptomonas sp.
Lunate cells
Other genera
Total
Microcystis sp.
Melosira s£.
Synedra sp.
Centric diatoms
Euglena sp.
Other genera
Total
Closterium sp.
Cyclotella sp.
Aphanizomenon (?) sp
Cryptomonas sp.
Coelastrum sj>.
Algal units
per ml
1
Other genera
Total
2,846
2,549
913
266
228
190
724
4,870
7,747
384
332
179
128
206
8,976
-------
8
2. Chlorophyll a^ -
Sampling
Date
05/11/73
08/09/73
10/17/73
Station
Number
01
02
01
02
01
02
Chlorophyll a^
(yg/1)
8.1
13.9
10.1
11.6
56.0
57.5
C. Limiting Nutrient Study:
1. Filtered and nutrient spiked -
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
Ortho P
Cone, (mg/1)
0.020
0.070
0.070
0.020
Inorganic N Maximum yield
Cone, (mg/1) (mg/1-dry wt.)
7.470
7.470
8.470
8.470
3.3
26.4
25.3
3.5
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum. indicates that the potential primary productivity
of Lake Bloomington was moderately high at the time the
sample was collected (05/11/73). Also, the results indicate
the lake was phosphorus limited at that time. Note that the
addition of orthophosphorus alone resulted in a greatly
increased yield while the addition of only nitrogen did hot.
This conclusion is supported by the very high mean N/P ratios
measured in the lake at each sampling time (116/1 in May,
317/1 in August, and 144/1 in October).
-------
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Illinois National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page v), except for the high
runoff months of February and March when two samples were collected.
Sampling was begun in June, 1973, and was completed in May, 1974.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Illinois District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads shown are
those measured minus point-source loads, 1f any.
Intakes for the Bloomington municipal water supply are located
near lake sampling station 1 at depths of six and 11 meters (Hersch,
1975). In estimating nutrient loads in the water removed by the city,
the mean flow and the mean of all lake nutrient concentrations measured
at or below the six-meter depth at station 1 were used.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("II" of U.S.G.S.) were estimated using the means of the
nutrient loads, in kg/km2/year, at nearby Decatur Lake tributary
* See Working Paper No. 175.
-------
10
stations E-l, F-l, G-l, and H-l and multiplying the means by the ZZ
area in km2. The Decatur Lake tributary loads were used because no
unimpacted tributaries to Lake Bloomington were sampled, and the
watersheds of the two lakes are similar.
The operator of the East Bay Camp-Conference Center wastewater
treatment plant provided monthly effluent samples and corresponding
flow data. The Towanda Elementary School did not participate in
the Survey, and nutrient loads were estimated at 1.134 kg P and 3.401
kg N/capita/year.
A. Waste Sources:
1. Known muncipal -
Name
Conference
Center
Towanda El em.
School
2. Known industrial - None
Pop.
Served
198*
36**
Mean Flow
Treatment (m3/d)
sand filter
act. sludge
49.5
13.6***
Receiving
Water
Lake Bloomington
Money Creek
* Population based on an average of 475 people June through August, and
110 people September through May (Detrich, 1973).
** Average population equivalent based on 200+ students for 8 hours/day,
5 days/week, 9 months/year (Blake, 1975).
*** Estimated at 0.3785 m5/capita/day.
-------
11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Money Creek 2,500 58.6
b. Minor tributaries & immediate
drainage (non-point load) - 1,535 35.9
c. Known municipal STP's -
E. Bay Camp-Conf. Ctr. 130 3.0
Towanda El em. School 40 0.9
d. Septic tanks* - 30 0.8
e. Known industrial - None
f. Direct precipitation** - 35 - 0.8
Total 4»270 100.0
2. Outputs -
Lake outlets - Money Creek 2,075
Bloomington Mun.
Water Supply 860
Total 2,935
3. Net annual P accumulation - 1,335 kg.
* Estimate based on 100 shoreline dwellings and two camps; see Working
Paper No. 175.
** See Working Paper Wo. 175.
-------
12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Money Creek 280,005 81.4
b. Minor tributaries & immediate
drainage (non-point load) - 59,125 17.2
c. Known municipal STP's -
E. Bay Camp-Conf. Ctr. 370 0.1
Towanda Elem. School 120 <0.1
d. Septic tanks* - 1,135 0.7
e. Known industrial - None
f. Direct precipitation** - 2,125 0.6
Total 342,880 100.0
2. Outputs -
Lake outlets - Money Creek 325,200
Bloomington Mun.
Water Supply 51,595
Total 376,795
3. Net annual N loss - 33,915 kg.
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Money Creek 20 2,207
* Estimate based on 100 shoreline dwellings and two camps; see Working
Paper No. 175.
** See Working Paper No. 175.
-------
13
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (Vollen-
weider and Dillon, 1974). Essentially, his "dangerous" rate
is the rate at which the receiving water 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 considered one between "dangerous" and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/m2/yr 2.17 0.68 174.1 loss*
Vollenweider loading rates for phosphorus
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Bloomington:
"Dangerous" (eutrophic rate) 0.80
"Permissible" (oligotrophic rate) 0.40
* 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,
or unknown and unsampled point sources discharging directly to the lake.
Whatever the cause, a similar nitrogen loss has occurred at Shagawa Lake,
Minnesota, which has been intensively studied by EPA's National Eutrophica-
tion and Lake Restoration Branch (Malueg et al., 1975).
-------
14
V. LITERATURE REVIEWED
Blake, Robert, 1975. Personal communication (Towanda Elem. School
waste treatment facilities). Distr. 5 Adm. Off., Normal.
Detrich, William B., 1973. Treatment plant questionnaire (East
Bay Camp-Conference Center STP). Hudson.
Ferguson, Donald W., 1975. Personal communication (occurrence and
severity of algal blooms). City Engineering & Water Dept.,
Bloomington.
Forneris, John J., 1973. Personal communication (lake morphometry).
IL Env. Prot. Agency, Springfield.
Hersch, John, 1975. Personal communication (municipal use of Lake
Bloomington water; shoreline development). City Water Dept.,
Bloomington.
Kothandaraman, V., and Ralph L. Evans, 1971. Analysis of variations
in dissolved oxygen in an impoundment in central Illinois. Water
Resources Research, vol. 7, no. 4, pp. 1037-1044.
, 1970. Annual temperature variations in an impound-
ment in central Illinois. Jour. AWWA, vol. 62, no. 10, pp. 639-642.
Malueg, Kenneth W., D. Phillips Larsen, Donald W. Schults, and Howard
T. Mercier; 1975. A six-year water, phosphorus, and nitrogen
budget for Shagawa Lake, Minnesota. Jour. Environ. Qua!., vol. 4,
no. 2, pp. 236-242.
Stieferman, Michael J., 1975. Personal communication (phosphorus
removal at East Bay Camp-Conference Center). Warren & Van Praag,
Inc., Decatur.
Sullivan, William T., 1967. Chemical composition of the mud-water
interface zone, with the description of an interface sampling
device. Proc. Tenth Conf. on Great Lakes Research, pp. 390-403.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
Wang, Wun-Cheng, and Ralph L. Evans, 1970. Nutrients and quality in
impounded water. Jour. AWWA, vol. 62, no. 8, pp. 510-514.
-------
15
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE
1703
1706
1708
1711
1712
1714
1735
1726
1727
1733
1735
1739
mo
1742
1748
1750
1751
1752
1753
1754
1755
175b
1757
1758
1759
1761
1762
1763
LAKE NAME
LAKE BLOOMINGTON
LAKE CARLYLE
LAKE CHARLESTON
COFFEEM LAKE
CRAB ORCHARD LAKE
LAKE OECATUR
LONG LAKE
LAKE LOU YAEGER
LAKE MARIE
PISTAKEE LAKE
REND LAKE
LAKE SHELBYVILLE
SILVER LAKE (HIGHLAND)
LAKE SPRINGFIELD
VERMILION LAKE
WONDER LAKE
LAKE STORY
OEPUE LAKE
LAKE SANGCnRIS
LAKE HOLIDAY
FOX LAKE
GRASS LAKE
EAST LOON LAKE
SLOCUM LAKE
CEDAR LAKE
LAKE WEMATUK
RACCOON LAKE
BALDWIN LAKE
MEDIAN
TOTAL P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.050
.084
.160
.032
.082
.129
.704
.186
.098
.203
.071
.062
.226
.109
.109
.426
.072
.438
.050
.167
.219
.301
.076
.865
.029
.069
.106
.044
MEDIAN
INORG N
5.730
1.270
4.680
0.260
0.200
3.750
1.190
1.600
0.370
0.370
0.210
3.290
0.970
3.265
4.695
0.890
2.510
4.050
1.970
3.135
0.375
0.820
0.120
0.200
0.170
1.770
0.310
0.140
500-
MEAN SEC
464
477
490
456
482
479
482
489
467
485
471
461
489
483
481
486
459
490
475
485
486
481
450
487
400
466
484
461
.667
.889
.667
.222
.222
.571
.667
.583
.667
.667
.500
.333
.500
.385
.500
.000
.333
.000
.417
.167
.167
.000
.000
.333
.333
.333
.333
.167
MEAN
CHLORA
26
17
12
• 7
59
43
49
10
39
75
23
17
5
13
31
98
17
58
19
51
63
83
22
221
5
7
19
11
.200
.367
.000
.700
.867
.000
.333
.662
.533
.867
.533
.161
.822
.013
.150
.533
.250
.833
.292
.217
.850
.500
.300
.100
.767
.967
.217
.333
15-
MIN DO
14
11
8
14
13
14
8
11
14
7
12
14
14
10
14
7
14
7
14
7
8
5
14
5
12
14
13
13
.800
.000
.400
.900
.BOO
.500
.800
.400
.700
.000
.700
.800
.800
.800
.200
.800
.800
.600
.500
.200
.800
.900
.900
.800
.800
.500
.BOO
.200
MEDIAN
DISS OHTHO P
0.020
0.032
0.065
0.012
0.013
0.062
0.398
0.076
0.057
0.062
0.012
0.019
0.057
0.059
0.050
0.132
0.021
0.276
0.009
0.04b
0.083
0.093
O.Oln
0.362
0.01J
0.031
0.020
0.007
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
LAKE VANOALIA
1765 OLD BEN MINE RESERVOIR
1766 HORSESHOE LAKE
MEDIAN
TOTAL P
0.116
0.930
0.127
MEDIAN
INOR6 N
0.480
0.205
0.705
500-
MEAN SEC
478.111
478.333
482.833
MEAN
CrILORA
11.27&
31.433
182.250
15-
MIN 00
14.300
11.200
e.doo
MEOUN
0155 OKThO
0.023
0.575
0.018
P
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES KITH HIGHER VALUES)
LAKE
CODE
1703
1706
1708
1711
1712
1714
1725
172e
1727
1733
1735
1739
1740
1742
1748
1750
1751
1752
175J
1754
1755
1756
1757
1758.
1759
1761
1762
1763
LAKE NAME
LAKE BLOOMINGTON
LAKE CARLYLE
LAKE CHARLESTON
COFFEEN LAKE
CRAB ORCHARD LAKE
LAKE OECATUR
LONG LAKE
LAKE LOU YAEGER
LAKE MARIE
PISTAKEE LAKE
RENO LAKE
LAKE SHELBWILLE
SILVER LAKE (HIGHLAND)
LAKE SPRINGFIELD
VERMILION LAKE
WONDER LAKE
LAKE STORY
DEPUE LAKE
LAKE SANGCHRIS
LAKE HOLIDAY
FOX LAKE
GRASS LAKE
EAST LOON LAKE
SLOCUM LAKE
CEDAR LAKE
LAKE HEMATUK
RACCOON LAKE
BALDWIN LAKE
MEDIAN
TOTAL P
88
63
37
97
67
40
7
30
60
27
77
83
20
53
50
13
73
10
88
33
23
17
70
3
100
80
57
93
( 26)
( 19)
( 11)
( 29)
( 20)
( 12)
( 2)
( 9)
( 18)
( 8)
( 23)
( 25)
( 6)
I 16)
( 15)
( 4)
( 22)
( 3)
( 26)
( 10)
( 7)
( 5)
( 21)
I 1)
( 30)
( 24)
( 17)
( 28)
MEDIAN 500-
INORG N MEAN SEC
0
40
7
77
90
13
43
37
68
68
80
17
47
20
3
50
27
10
30
23
63
53
100
87
93
33
73
97
( 0)
( 12)
I 2)
I 23)
( 27)
( 4)
( 13)
( 11)
( 20)
( 20)
( 24)
( 5)
( 14)
I 6)
( 1)
( 15) '
( 8)
( 3)
I 9)
( 7)
( 19)
( 16)
I 30)
( 26)
( 28)
( 10)
( 22)
( 29)
80
63
0
93
43
53
40
7
73
23
70
83
10
33
47
20
90
3
67
27
17
50
97
13
100
77
30
87
( 24)
( 19)
( 0)
( 28)
( 13)
I 16)
( 12)
( 2)
( 22)
( 7)
( 21)
( 25)
I 3)
( 10)
< 14)
( 6)
( 27)
( 1)
I 20)
( 8)
( 5)
( 15)
( 29)
( 4)
( 30)
( 23)
( 9)
( 26)
MEAN
CHLORA
47
63
77
93
20
33
30
87
37
13
50
70
97
73
43
7
67
23
57
27
17
10
S3
0
100
90
60
dO
( 14)
( 19)
( 23)
( 28)
( 6)
I 10).
( 9)
I 26)
I ID
I 4)
< 15)
I 21)
( 29)
I 22)
( 13)
( 2)
( 20)
( 7)
( 17)
( 8)
I 5)
I 3)
( 16)
( 0)
I 30)
( 27)
I 18)
( 24)
15-
MIN DO
13
63
77
2
42
30
72
57
23
90
53
13
13
67
37
80
13
83
30
87
72
97
2
100
50
30
42
47
( 2)
( 19)
( 23)
( 0)
( 12)
( 8)
I 21)
( 17)
( 7)
( 27)
( 16)
I 2)
( 2)
( 20)
( ID
( 24)
( 2)
( 25)
( 8)
( 26)
( 21)
< 29)
( 0)
( 30)
( 15)
( 8)
( 12)
( It)
MEDIAN
DISS ORTHO P
68
53
27
92
85
32
3
23
42
32
92
73.
42
37
47
13
63
10
97
50
20
17
77
7
85
57
68
100
( 20)
( 16)
( 8)
( 27)
< 25)
( 9)
( 1)
( 7)
( 12)
I 9)
( 27)
( 22)
( 12)
< 11)
( 14)
( 4)
( 19)
( 3)
( 29)
( 15)
< 6)
( 5)
( 23)
( 2)
< -esi
( 17)
( 20)
( 30)
INDE)
NU
296
345
225
454
347
201
195
241
303
253
422
339
229
283
227
183
333
139
369
247
212
244
399
210
sad
367
330
504
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
1764 LAKE VANDALIA
1765 OLD BEN MINE RESERVOIR
1766 HORSESHOE LAKE
MEDIAN
TOTAL P
47 ( 14)
0 ( 0)
43 ( 13)
MEDIAN
INORG N
60
83
57
( 18)
( 25)
( 17)
500-
MEAN SEC
60
57
37
( 18)
< 17)
( 11)
MEAN
CHLORA
83
40
3
( 25)
( 12)
( 1)
15-
MIN 00
13 (
60 (
93 (
2)
18)
28)
MEDIAN
OISS OHTHO P
60
0
80
( 18)
( 0)
( 24)
INJtX
NO
323
240
313
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 1759 CEDAR LAKE 528
2 1763 BALDWIN LAKE 504
3 1711 COFFEEN LAKE 45*
4 1735 REND LAKE <»22
5 1757 EAST LOON LAKE 399
6 1753 LAKE SANGCHRIS 369
7 1761 LAKE WEMATUK 367
8 1712 CRAB ORCHARD LAKE 347
9 1706 LAKE CARLYLE 345
10 1739 LAKE SHELBYVlLLE 339
11 1751 LAKE STORY 333
12 1762 RACCOON LAKE 330
13 1764 LAKE VANDAL IA 323
14 1766 HORSESHOE LAKE 313
15 1727 LAKE MARIE 303
16 1703 LAKE BLOOMINGTON 296
17 1742 LAKE SPRINGFIELD 2B3
18 1733 PISTAKEE LAKE 253
19 1754 LAKE HOLIDAY 247
20 1756 GRASS LAKE 244
21 1726 LAKE LOU YAEGER 241
22 1765 OLD BEN MINE RESERVOIR 240
23 1740 SILVER LAKE (HIGHLAND) 229
24 1748 VERMILION LAKE 227
25 1708 LAKE CHARLESTON 225
26 1755 FOX LAKE 212
27 1758 SLOCUM LAKE 210
28 1714 LAKE DECATUH 201
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
29 1725 LONG LAKE 195
30 1750 WONDER LAKE 183
31 1752 DEPUE LAKE 139
-------
APPENDIX B
CONVERSIONS FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
-4
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR ILLINOIS
10/23/75
LAKE CODE 1703
LAKE BLOOMINGTON
SUB-DRAINAGE
TRIBUTARY AREA(SO KM)
1703A1
1703A2
1703ZZ
180.0
126.9
53.6
OF LAKE(SO KM) 180,
JAN
1.17
0.80
0.36
FEB
1.73
1.21
0.52
MAR
2.15
1.50
0.66
.0
APR
2.22
1.54
0.68
MAY
1.75
1.21
0.54
NORMALIZED FLOWS (CMS)
JUN JUL AUG
1.46
1.02
0.44
0.88
0.61
0.27
coo
...
46
32
14
SEP
0.33
0.22
0.10
OCT NOV
0.37 0.53
0.25 0.36
0.12 0.17
DEC MEAN
0.63 1.13
0.43 0.78
0.20 0.35
SUMMARY
'OTAL
;UM OF
DRAINAGE AREA OF LAKE =
SUB-ORAINAGE AREAS =
180.0
180.5
TOTAL
TOTAL
FLOW
FLOW
IN *
OUT =
13.67
13.67
MEAN MONTHLY FLOWS AND UAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR
1703A1
1703A2
1703ZZ
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
73
73
73
73
73
73
73
74
74
74
74
74
73
73
73
73
73
73
73
74
74
74
74
74
73
73
73
73
73
73
73
74
74
74
74
74
MEAN FLOW DAY
5.32
0.23
0.24
0.0
0.0
0.0
0.18
3.34
2.80
3.74
1.81
3.00
3.96
0.74
0.25
0.05
0.25
0.14
1.22
3.54
2.18
2.80
1.47
2.32
1.70
0.31
0.11
0.03
0.12
0.06
0.51
1.47
0.93
1.25
0.65
1.02
3
3
5
9
14
4
1
5
2
2
6
4
3
3
5
9
14
4
1
5
2
2
6
4
3
3
5
9
14
4
1
5
2
2
6
4
FLOW DAY
FLOW DAY
FLOW
0.03
1.27
0.03
0.0
0.0
0.0
0.0
0.19
3.88
2.18
2.55
0.68
0.76
1.13
0.37
0.06
1.08
0.11
0.24
1.10
2.92
1.73
1.98
0.68
0.34
0.51
0.20
0.03
0.54
0.05
0.10
0.45
1.27
0.76
0.88
0.34
16
20
16
20
16
20
1.39
3.03
1.19
2.32
0.51
1.02
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 75/10/33
170301
40 39 43.0 088 56 20.0
LAKE BLOOMINGTON
17113 ILLINOIS
DATE
FROM
TO
73/05/11
TIME
OF
DAY
13 15
13 15
13 15
DEPTH
FEET
0000
0004
0015
13 15 0027
73/08/09
73/10/17
18 10
18 10
18 10
18 10
18 10
18 10
18 10
12 50
12 50
12 50
12 50
12 50
12 50
0000
0005
0010
0015
0020
0025
0030
0000
0005
0010
0020
0030
0036
00010
WATER
TEMP
CENT
16.3
15.9
15.7
15.5
28.3
27.8
27.4
26.1
22.5
17.6
16.4
19.1
19.1
19.1
19.1
18.8
15.3
11EPALES
00300
00
MG/L
9.0
8.7
8.1
8.6
5.0
0.4
0.4
7.2
7.4
7.4
5.2
0.2
00077
TRANSP
SECCHI
INCHES
18
72
38
00094
CNDUCTVY
FIELD
MICROMHO
460
460
460
460
497
492
491
489
434
424
436
388
388
386
386
400
426
3
00400
PH
SU
8.30
8.20
8.20
8.20
8.40
7.90
7.40
7.40
8.40
8.40
8.40
6.10
7.90
7.50
00410
T ALK
CAC03
MG/L
157
157
157
160
163
167
178
242
162
161
159
157
168
258
2111202
0031
00610
NH3-N
TOTAL
MG/L
0.060
0.060
0.070
0.090
0.120
0.070
0.190
1.800
0.180
0.170
0.160
0.240
0.610
3.210
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.500
0.300
0.400
0.400
1.200
0.900
1.000
3.300
0.900
0.900
0.700
0.800
1.300
4.100
00630
N02&N03
N-TOTAL
MG/L
7.460
6.090
6.800
7.690
6.880
6.880
5.540
0.690
2.690
2.720
2.680
2.690
2.290
0.080
00671
PHOS-OIS
ORTKO
MG/L P
0.066
0.066
0.066
0.066
0.004
0.007
0.016
0.09S
0.018
0.018
0.013
0.019
0.021
8.035
DATE
FROM
TO
73/05/11
73/08/09
73/10/17
TIME DEPTH PHOS-TOT
OF
DAY FEET
13
13
13
13
18
18
18
18
12
12
12
12
12
12
15
15
15
15
10
10
10
10
50
50
50
50
50
50
0000
0004
0015
0027
0000
0015
0020
0030
0000
0005
0010
0020
0030
0036
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.086
.092
.095
.110
.026
.029
.036
.210
.034
.033
.035
.037
.044
.059
00665 32217
CHLRPHYL
A
UG/L
8.1
10.1
56.0
-------
STORE! RETRIEVAL DATE 75/10/33
170302
40 38 50.0 088 55 00.0
LAKE BLOOMINGTON
17113 ILLINOIS
DATE
FROM
TO
73/05/11
73/08/09
73/10/17
DATE
FROM
TO
73/05/11
73/08/09
73/10/17
TIME DEPTH
OF
DAY FEET
13 45 0000
13 45 0004
13 45 0015
18 40 0000
18 40 0005
18 40 0010
18 40 0015
18 40 0017
13 20 0000
13 20 0005
13 20 0010
13 20 0015
TIME DEPTH
OF
DAY FEET
13 45 0000
13 45 0004
13 45 0015
18 40 0000
18 40 0005
18 40 0015
18 40 0017
13 20 0000
13 20 0005
13 20 0010
13 20 0015
00010
MATER
TEMP
CENT
17.4
17.4
16.8
28.7
28.3
27.7
26.6
24.1
18.9
18.9
18.9
18.8
00665
PHOS-TOT
MG/L P
0.090
0.087
0.088
0.039
0.040
0.046
0.079
0.047
0.051
0.050
0.052
00300
DO
MG/L
9.6
9.4
6.6
9.0
6.4
2.6
7.4
7.8
8.2
32217
CHLRPHYL
A
UG/L
13.9
11.6
57.5
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
21 480
480
510
40 518
511
504
509
500
23 378
380
380
379
11EPALES
3
00400 00410
PH T ALK
SU
8.30
8.30
8.30
8.50
8.50
7.90
7.90
8.50
8.50
8.50
8.50
CAC03
MG/L
165
165
174
173
174
176
196
153
151
151
153
2111202
0018 FEET DEPTH
00610 00625 00630
NH3-N TOT KJEL N02&N03
TOTAL
MG/L
0
0
0
0
0
0
0
0
0
0
0
.040
.040
.040
.060
.080
.120
.200
.070
.050
.090
.050
N
MG/L
0.500
0.400
0.500
1.300
1.000
1.000
1.200
1.000
0.800
0.700
0.700
N-TOTAL
MG/L
8.110
7.920
8.260
6.830
6.880
6.800
5.040
2.660
2.690
2.680
2.700
00671
PHOS-DIS
ORTHO
MG/L P
0.064
0.065
0.059
0.011
0.007
0.007
0.007
0.019
0.020
0.020
0.021
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 75/10/23
1703A1
40 39 50.0 088 56 14.0
MONEY CREEK
17055 MCLEAN CO MAP
0/LAKE BLOOMINGTON
ST RO 473 BRDG BELO DAM 9 N BLOOMINGTON
HEPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/06/03
73/07/06
73/08/05
73/09/09
73/10/14
73/11/04
73/12/01
74/01/05
74/02/02
74/02/16
74/03/02
74/03/20
74/04/06
74/05/04
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
09
17
17
17
13
11
13
11
14
16
13
13
14
17
15
00
30
00
00
00
00
18
00
00
00
50
15
45
MG/L
7
8
5
0
0
3
2
2
10
8
9
10
10
10
.800
.100
.500
.132
.210
.100
.700
.100
.400
.750
.500
.860
.000
.500
MG/L
2.
3c
2.
4»
1.
1.
200
000
200
200
800
150
0.800
Oo
1.
0.
0.
0.
1.
1.
900
000
900
500
700
000
200
00610 00671 00665
Nri3~N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
Oo
0.
0.
0.
Oo
0.
0.
052
138
022
231
210
023
040
800
075
060
010
025
035
120
MG/L P
0.012
0.009
0.008
0.023
0.019
0.017
0.005K
0.090
0.040
0.035
0.015
0.005K
0.010
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
»035
o045
.020
.185
»145
o030
o!65
»030
.125
0055
0070
o050
0.005K
0
.020
K VALUE KNOWN TO ae
Ltss THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/10/23
1703A2
40 36 18.0 088 53 55.0
MONEY CREEK
17 MCLEAN CO MAP
I/LAKE BLOOMINGTON
CO 12 BROG 2.5 Ml N OF TOWANDA
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/06/03
73/07/06
73/08/05
73/09/09
73/10/14
73/11/04
73/12/01
74/01/05
74/02/02
74/02/16
74/03/02
74/03/20
74/04/06
74/05/04
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
08
18
19
17
11
10
10
13
11
13
11
13
11
15
45
00
30
00
30
25
30
40
00
00
00
45
15
50
MG/L
9
12
8
0
8
7
7
13
13
12
14
14
11
12
•
*
*
*
•
*
•
•
•
•
•
•
*
•
900
000
400
147
000
700
900
000
000
300
400
100
000
000
MG/L
1.
0.
3.
1.
1.
0.
0.
0.
0.
0.
1.
0.
1.
0.
400
250
200
900
200
150
100K
900
300
700
100
500
400
700
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
132
072
140
056
063
028
016
0.052
0.
0.
0.
0.
0.
0.
025
035
030
025
060
070
MG/L P
0.029
0.042
0.023
0.026
0.071
0.037
0.048
0.024
0.035
0.020
0.015
0.025
0.025
0.020
MG/L P
0.095
0.090
0.090
0.195
0.210
0.100
0.200
0.040
0.070
0.040
0.120
0.085
0.035
0.042
K VALUE KNOWN 10 bE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/10/23
170321 SF170321 P000198
40 36 27.0 088 59 40.0
EAST BAY CAMP CONFERENCE CENTER
17113 15 NORMAL
0/LAKE BLOOMINGTON
LAKE BLOOMINGTON
11EPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/07/14
CP(T)-
73/07/14
73/08/15
CP(T)-
73/08/15
73/09/15
73/10/15
cpm-
73/10/15
73/11/15
CP-
73/11/15
73/12/13
CP(T)-
73/12/14
74/01/14
CP(T>-
74/01/15
74/02/12
CP-
74/02/15
74/03/12
CP-
74/03/15
74/04/11
CP-
74/04/15
74/05/13
CPfTl-
74/05/15
74/06/11
cpm-
74/06/14
74/07/13
CP(T)-
74/07/15
00630
TIME DEPTH N02&N03
OF N-TOTAL
DAY FEET MG/L
11
15
08
11
09
08
15
07
15
08
10
08
12
08
09
08
08
U8
09
08
09
12
12
08
00
00
00
00
00
00
00
30
00
00
00
30
30
30
00
30
30
30
00
00
00
00
00
30
0
3
4
11
10
7
5
a
5
8
11
6
4
.440
.800
.400
.600
.000
.900
.500
.800
.400
.000
.000
.021
.800
00625
TOT KJEL
N
MG/L
29.200
20.000
21.000
0.150
0.820
5.500
O.SOOK
2.450
l.OOOK
l.OOOK
l.OOOK
26.000
16.000
00610 00671 00665 50051 50053
NH3-N PHOS-DIS PHOS-TOT FLOW CONOU1T
TOTAL ORTHO RATE FLOW-MOD
MG/L MG/L P MG/L P INSF MOD MONTHLY
8
2
0
0
0
0
0
0
0
0
14
0
.100
.650
.030
.064
.066
.360
.040K
.050K
.230
.150
.300
.230
4.350
5.750
4.860
2.310
2.200
1.900
0.300
1.360
0.780
0.860
1.500
3.550
2.800
14.630
15.000
6.950
2.500
2.400
1.900
0.340
1.550
0.790
1.050
1.650
3.900
3.200
0.013
0.044
0.015
0.012
0.005
0.006
0.005
0.006
0.006
0.007
0.010
0.019
0.011
0.028
0.030
0.016
0.006
0.003
0.006
0.006
0.006
0.008
0.009
0.010
0.018
0.024
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |