U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
EAST LDON LAKE
LAKE COUNTY
ILLINOIS
EPA REGION V
WORKING PAPER No, 304
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-&G.P.O. 699-440
-------
REPORT
ON
EAST WON LAKE
LAKE COUNTY
IHINOIS
EPA REGION V
WORKING PAPER No, 304
WITH THE COOPERATION OF THE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
AND THE
ILLINOIS NATIONAL GUARD
JUNE, 1975
770
-------
CONTENTS
Page
Foreword i i
List of Illinois Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Introduction 1
II. Conclusions 1
III. Lake and Drainage Basin Characteristics 3
IV. Lake Water Quality Summary 4
V. Nutrient Loadings 8
VI. Literature Reviewed 9
VII. Appendices 10
-------
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 [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
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 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
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
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF ILLINOIS
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
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-42'28
88 04'
- -a- ... -
4227
'.I
42 26
EAST LOON LAKE
. <8> Tributary Sampling Site
X Lake Sampling Site
J! Sewage Treatment Plant
1/2
1 Km.
1/4
Scale
1/2 H
\Cedar Lake
-------
EAST LOON LAKE
STORE! NO. 1757
I. INTRODUCTION
Because of the lack of gradient and the diffuse drainage through
the marsh areas around East Loon Lake, the U.S. Geological Survey
could not provide flow data for the tributaries to the lake. For
this reason, it is not possible to determine the overall nutrient
loadings to the lake. Only one known point source indirectly impacts
the lake. Therefore, this report primarily relates to lake sampling
data, although all of the data obtained during the Survey are included
in the appendices.
II. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that East Loon Lake is eutrophic.
Based on an index of six water quality parameters, East Loon
Lake ranked fifth in overall trophic quality among the 31
Illinois water bodies sampled in 1973*. Nine of the lakes
had less median total phosphorus, six had less and one had
the same median dissolved phosphorus, none had less median
inorganic nitrogen, 14 had less mean chlorophyll a_, and
only one lake had a greater mean Secchi disc transparency.
Depletion of dissolved oxygen with depth occurred in August,
1973.
* See Appendix A.
-------
Survey 1imnologists noted that macrophytes occupied
about 60% of the shoreline shallows and reported a blue-
green algal bloom in October.
B. Rate-Limiting Nutrient:
A differential change in primary nutrients occurred
in the assay sample between the time of collection and the
beginning of the assay, and the results are not representative
of conditions in the lake at the time the sample was taken.
However, the lake data indicate nitrogen limitation at all
sampling times.
C. Nutrient Sources:
It is estimated that the Moody Youth Camp contributed
45 kg of total phosphorus and 140 kg of total nitrogen to
Loon Lake during the sampling year. If it is assumed that
no sedimentation or biological assimilation occurred in Loon
Lake, the point-source loading rate to East Loon Lake would
be only 0.07 g/m2/yr. Therefore, it does not seem likely
that the Moody Youth Camp contributes significantly to the
phosphorus load to East Loon Lake.
As noted above, tributary flow data are not available,
and non-point nutrient loads cannot be calculated.
-------
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 0.67 kilometers2.
2. Mean depth: 1.8 meters.
3. Maximum depth: >6.4 meters.
4. Volume: 1.229 x 106 m3.
5. Mean hydraulic retention time: 89 days (based on outflow).
B. Tributary and Outlet:
(See Appendix C.for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
None measured or gaged
2. Outlet -
Unnamed Stream (A-l) 25.9** 0.16
C. Precipitation***:
1. Year of sampling: 112.2 centimeters.
2. Mean annual: 83.3 centimeters.
t Table of metric conversionsAppendix B.
tt Forneris, 1973.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
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IV. LAKE WATER QUALITY SUMMARY
East Loon Lake 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 a
number of depths at a single station on the lake (see map, page v).
During each visit, a single depth-integrated (4.6 m to surface) sample
was collected for phytoplankton identification and enumeration; and a
similar sample was collected for chlorophyll a_ analysis. During the
first visit, a single 18.9-liter depth-integrated sample was taken
for algal assays. The maximum depth sampled was 6.4 meters.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
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A. SUMMARY OF PHYSICAL ANi)
PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNOCTVY (MCHOMO)
PH (STAND UNITS)
TOT ALK (MG/L>
TOT P (MG/L)
OWTHO P (MG/L)
N02«N03 (MG/L)
AMMONIA (MG/L)
KJtL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLPtPYL A (UG/L)
SECCH1 (METERS)
1ST SAMPLING ( 5/
1 SITES
RANGE MEAN
13.9 - 14.0 13.9
9.8 - 9.9 9.8
465. - 480. 472.
8.2 - 8.3 8.3
173. - 174. 174.
0.047 - 0.049 0.048
0.016 - 0.019 0.017
0.060 - 0.070 0.067
0.050 - 0.060 0.0b3
0.900 - 1.200 1.033
0.110 - 0.130 0.120
0.960 - 1.270 1.100
12.1 - 12.1 12.1
1.5 - 1.5 l.S
9/73)
CHEMICAL CHARACTERISTICS FOR EAST LOON LAKE
STORtT CODE 17b7
2ND SAMPLING ( B/ 7/73)
1 SITES
3RO SAMPLING (10/16/73)
1 SITES
MEDIAN
0
0
13.9
9.8
470.
8.3
174.
.048
.017
a. 070
0
i
0
1
.050
.000
.120
.070
12.1
l.S
riANGE
14.8
0.0
4<»2.
7.2
171.
0.036
0.011
0.060
0.060
1.400
0.120
1.460
28.0
1.4
- 25.7
6.8
- 499.
8.6
- 200.
- 0.396
- 0.317
- 0.160
- 2.090
- 3.200
- 2.240
- J.350
- 28.0
1.4
MEAN
21.4
3.3
475.
7.9
179.
0.154
0.101
0.122
0.697
2.025
0.820
2.147
28.0
1.4
MEDIAN
23.2
3.2
483.
8.0
173.
0.092
0.037
0.135
0.320
1.750
0.460
1.890
28.0
1.4
RANGE
16.0
8.6
354.
8.6
165.
0.085
0.018
0.020
0.050
1.300
0.070
1.320
26.8
0.9
- 16.0
8.6
- 355.
8.6
- 167.
- 0.089
- 0.036
- 0.030
- 0.060
- 1.600
- 0.090
- 1.630
- 26.8
0.9
MEAN
16.0
8.6
354.
8.6
166.
0.087
0.027
0.027
0.053
1.433
0.080
1.460
26.8
0.9
MEDIAN
16.0
8.6
354.
8.6
166.
0.088
0.026
0.030
0.050
1.400
0.080
1.430
26.8
0.9
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
05/09/73
08/07/73
10/16/73
2. Chlorophyll a_ -
Sampling
Date
05/09/73
08/07/73
10/16/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Dinobryon sp.
Flagellates
Fraqilaria sp.
Anabaena sp.
Cryptomonas sp.
Other genera
Total
Lynqbya sp.
Arthrospira sp.
Merismopedia sp.
Microcystis sp.
Oscillatoria sp.
Other genera
Total
Aphanizomenon SJK
Melosira sp.
Microcystis sp.
Gomphosphaeria sp,
Cryptomonas sp.
Other genera
Total
Algal units
per ml
1,108
1,041
860
588
271
951
4,819
Station
Number
01
01
01
9,857
2,110
361
216
180
108
669
3,644
Chlorophyll a_
(yg/1)
12.1
28.0
26.8
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C. Limiting Nutrient Study:
A differential change in phosphorus and nitrogen occurred in
the assay sample between the time of collection and the beginning
of the assay, and the limiting nutrient shifted from nitrogen in
the lake (N/P = 7/1) to phosphorus in the sample (N/P = 16/1).
Consequently, the assay results are not indicative of conditions
in the lake at the time the sample was collected.
The lake data indicate nitrogen limitation at all sampling
times. The mean inorganic nitrogen to orthophosphorus ratios
were 8 to 1 or less, and nitrogen limitation would be expected.
-------
V. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient concentrations, 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 March and April when two samples were collected.
Sampling was begun in June, 1973, and was completed in April, 1974.
Through an interagency agreement, outlet 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. However,
flows could not be determined for the tributaries (see page 1).
The Moody Youth Camp 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 Source*:
Pop. Mean Flow Receiving
Name Served Treatment (m3/d) Water
Moody Youth Camp 100 sand filter 37.8** Loon Lake to
East Loon Lake
* Barganz, 1975 (camp is operational about five months per year).
** Estimated at 0.3785 m3/capita/day.
-------
VI. LITERATURE REVIEWED
Barganz, Ronald M., 1975. Personal communication (Moody Youth
Camp wastewater treatment facilities). IL Env. Prot. Agency,
Springfield.
Forneris, John J., 1973. Personal communication (lake morphometry)
IL Env. Prot. Agency, Springfield.
-------
VII. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN HANK INGS
LAKE
CODE
1703
1706
1708
1711
1712
1714
1735
1736
1737
1733
1735
1739
mo
1743
1748
1750
1751
1753
1753
1754
1755
1756
1757
1758
1759
1761
1763
1763
LAKE NAME
LAKE BLOOM 1 NOT ON
LAKE CARLYLE
LAKE CHARLESTON
COFFEEN LAKE
CRAB ORCHARD LAKE
LAKE DECATUR
LONG LAKE
LAKE LOU YAEGER
LAKE MARIE
PISTAKEE LAKE
RENO LAKE
LAKE SHELUYVILLE
SILVER LAKE (HIGHLAND)
LAKE SPRINGFIELD
VERMILION LAKE
MONDER LAKE
LAKE STORY
DEPUE LAKE
LAKE SANGCHHIS
LAKE HOLIDAY
FOX LAKE
GRASS LAKE
EAST LOON LAKE
SLOCUM LAKE
CEDAR LAKE
LAKE MEMATOK
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
.050
.084
.160
.033
.083
.139
.704
.186
.098
.303
.071
.063
.336
.108
.109
.426
.073
.438
.050
.167
.319
.301
.076
.865
.039
.069
0.106
0.044
MEDIAN
INORG N
5.
1.
4.
0.
0.
3.
1.
1.
0.
0.
0.
3.
0.
3.
4.
0.
3.
4.
1.
3.
0.
0.
0.
0.
0.
730
270
680
360
300
750
190
600
370
370
310
390
970
265
695
890
510
050
970
135
375
830
120
200
170
1.770
0.310
0.
.140
500-
MEAN SEC
464
477
490
456
482
479
483
489
467
485
471
461
489
483
481
486
459
490
475
485
486
481
450
437
400
466
.667
.889
.667
.333
.322
.571
.667
.583
.667
.667
.500
.333
.500
.385
.500
.000
.333
.000
.417
.167
.167
.000
.000
.333
.333
.333
484.333
461
.167
MEAN
CHLOftA
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
663
533
867
533
161
823
013
ISO
533
250
833
293
217
850
500
300
100
767
967
217
333
15-
MIN DO
14.800
11.000
8.400
14.900
13.800
14.500
8.800
11.400
14.700
7.000
12.700
14.800
14.800
10.800
14.300
7.800
14.800
7.600
14.500
7.200
8.800
5.900
14.900
5.800
13.800
14.500
13.800
13.300
MEDIAN
DISS ORTHO P
0.020
0.032
0.065
0.012
0.013
0.062
0.398
0.076
0.057
.42
.012
.19
57
«.OS9
».»*
.133
0.031
0.376
0.009
.046
.S3
0.093
O.Olt)
0.362
0.013
0.031
.020
0.007
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
1764 LAKE VANDALIA
1765 OLD BEN MINE HESEKV01*
1766 HOWSESHOE LAKE
MEDIAN
TOTAL P
0.116
0.930
0.127
MEDIAN
INOKG N
0.480
0.205
0.705
500-
MEAN SEC
478.111
478.333
482.833
MEAN
CriLOHA
11.278
31.433
182.250
15-
MIN 00
14.300
11.200
6.dOO
MEDIAN
OISS OKThO P
0.023
0.575
O.Ultt
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE
1703
1706
1708
1711
1712
1714
1725
172fc
1727
1733
1735
1739
1740
1742
1746
1750
1751
1752
175J
1754
1755
1756
1757
1758
1759
1761
1762
1763
LAKE NAME
LAKE BLOOHINGTON
LAKE CARLYLE
LAKE CHARLESTON
COFFEEN LAKE
CRAB ORCHARD LAKE
LAKE DECATUR
LONG LAKE
LAKE LOU YAEGER
LAKE HARIE
PISTAKEE LAKE
RENO LAKE
LAKE SHELBYVILLE
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)
( 1)
( 30)
( 24)
( 17)
( 28)
MEDIAN
INORG N
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)
( 23)
( 27)
( 4)
( 13)
( 11)
( 20)
( 20)
( 24)
< 51
( 14)
< 6)
( 1)
< 15)
( 8)
( 3)
( 9)
( 7)
( 19)
( 16)
I 30)
( 26)
( 28)
( 10)
( 22)
I 29)
500-
MEAN SEC
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)
( 16)
( 12)
( 2)
< 22)
( 7)
( 21)
( 25)
( 3)
( 10)
( 14)
( 6)
( 27)
( 11
( 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
53
0
100
90
60
80
( 14)
( 19)
( 23)
( 28)
( 6)
( 10)
( 9)
( 26)
( 11)
( 4)
( 15)
< 21)
( 29)
( 22)
( 13)
( 2)
( 201
( 7)
( 17)
( 8)
( 5)
I 3)
( 16)
< 0)
( 30)
( 27)
( 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)
( 21)
( 17)
< 7)
« 27)
( 16)
( 2)
( 2)
( 20)
( 11)
( 24)
< 2)
( 25)
( 8)
( 26)
( 21)
( 29)
( 0)
( 30)
( 15)
I 8)
( 12)
( 14)
MEDIAN
OISS ORTHO P
68
S3
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)
( ft)
( 27)
( 25)
( 9)
( 1)
( 7)
( 12)
( 9)
( 27)
( 22)
< 12)
( 11)
( 14)
< 4)
( 19)
( 3)
( 29)
( 15)
( 6)
( 5)
( 23)
( 2)
( 25)
( 17)
( 20)
( 30)
INDEX
NO
296
345
225
454
347
201
195
241
393
253
*22
339
229
283
227
1*3
333
139
369
247
212
244
399 ,
210
528
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 (
0 (
43 (
14)
0)
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
DISS OKTHO 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 538
3 1763 BALDWIN LAKE 50*
3 1711 COFFEEN LAKE 454
4 1735 RENO LAKE 422
5 1757 EAST LOON LAKE 399
6 1753 LAKE SANGCrlRIS 369
7 1761 LAKE WEMATUK 367
8 1713 CRAB ORCHARD LAKE 347
9 1706 LAKE CARLYLE 345
10 1739 LAKE SHELBYVILLE 339
11 1751 LAKE STORY 333
13 1763 RACCOON LAKE 330
13 1764 LAKE VANDAHA 333
14 1766 HORSESHOE LAKE 313
15 1737 LAKE MARIE 303
16 1703 LAKE BLOOMINGTON 396
17 1742 LAKE SPRINGFIELD 3B3
18 1733 PISTAKEE LAKE 253
19 1754 LAKE HOLIDAY 347
20 1756 GRASS LAKE 244
21 1726 LAKE LOU YAEGER 341
32 1765 OLD BEN MINE RESERVOIR 340
23 1740 SILVER LAKE (HIGHLAND) 339
2
-------
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
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
LAKE CODE 1757 EAST LOON LAKE
10/33/75
1757A1
1757ZZ
INAGE AREA OF LAKE(SQ KM) 25.
DRAINAGE
ACSQ KM) JAN FEB MAR
25.9
0.0
0.16 0.25 0.31
0.0 0.0 0.0
9
NORMALIZED FLOWS (CMS)
APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN
0.31 0.24 0.21 0.12 0.06 0.04 0.04 0.07 0.06 0.16
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
TOTAL DRAINAGE AREA OF LAKE = 25.9
SUM OF SUB-DRAINAGE AREAS = 0.0
NOTE «« PART OF FOX CHAIN OF LAKES
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
1757A1
6
7
8
9
10
11
12
1
2
3
4
73
73
73
73
73
73
73
74
74
74
74
0.07
0.03
0.02
0.03
0.04
0.04
0.07
0.08
0.08
0.09
0.10
2
7
16
9
14
4
2
6
10
18
3
FLOW DAY
0.07
0.07
0.01
0.02
0.07
0.04
0.03
0.03
0.07
0.07 24
0.08 30
SUMMARY
TOTAL FLOW IN
TOTAL FLOW OUT
0.0
1.91
FLOW DAY
FLOW
0.05
0.14
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 75/10/33
175701
42 27 18.0 088 04 25.0
EAST LOON LAKE
17097 ILLINOIS
11EPALES
DATE
FROM
TO
73/05/09
73/06/07
73/10/16
DATE
FROM
TO
73/05/09
73/08/07
73/10/16
TIME DEPTH
OF
DAY FEET
14 20 0000
14 20 0006
14 ?0 0014
11 55 0000
11 55 0005
11 55 0008
11 55 0010
11 55 0015
11 55 0020
11 55 0021
15 15 0000
Ib 15 0005
15 15 0015
TIME DEPTH
OF
DAY FEET
14 20 0000
14 20 0006
14 20 0014
11 55 0000
11 55 0008
11 55 0015
11 55 0021
15 15 0000
IS 15 0005
15 15 0015
00010
WATER
TEMP
CENT
14.0
13.9
13.9
25.6
25.7
25.6
23.2
19.8
14.9
14.8
16.0
16.0
16.0
00665
PHOS-TOT
MG/L P
0.047
0.048
0.049
O.C36
0.068
0.116
0.396
0.089
0.085
0.088
00300
DO
MG/L
9.9
9.8
6.8
6.3
0.1
0.0
8.6
8.6
32217
CHLRPHYL
A
UG/L
12.1
28.0
26.8
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
60 480
470
465
54 499
498
494
483
464
442
443
36 354
355
354
3
00400
PH
SU
8.20
8.30
8.30
8.60
8.50
7.50
7.20
8.60
8.60
8.60
00410
T ALK
CAC03
MG/L
174
173
174
171
171
175
200
167
165
166
2111202
0018
00610
NH3-N
TOTAL
MG/L
0.060
0.050
O.ObO
0.130
0.060
0.510
2.090
0.050
0.050
0.060
FEET DEPTH
00625
TOT KJEL
N
MG/L
1.200
0.900
1.000
1.700
1.400
1.800
3.200
1.600
1.300
1.400
00630
N02&N03
N-TOTAL
MG/L
0.070
0.060
0.070
0.120
0.060
0.160
0.150
0.030
0.020
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.016
0.017
0.019
0.011
0.014
0.061
0.317
0.026
0.018
0.036
-------
APPENDIX E
TRIBUTARY DATA
-------
STORE! RETRIEVAL DATE 75/10/23
1757A1
42 27 52.0 088 04 55.0
UNNAMED STREAM
17097 7.5 ANTIOCH
0/E LOON LAKE
bRDG ON GRIMM RD .75 MI SE OF ANTIOCH
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/06/02
73/07/07
73/08/18
73/09/09
73/10/14
73/12/02
74/01/06
74/02/10
74/03/18
74/03/24
74/04/03
74/04/30
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
15
10
11
14
12
11
13
12
13
07
15
20
30
50
00
15
30
00
45
50
MG/L
0
C
0
0
0
0
0
0
0
0
0
.036
.032
.019
.035
.124
.252
.740
.330
.252
.140
.166
MG/L
2.
2.
2.
7.
1.
2.
2.
1.
3.
3.
1.
1.
100
700
700
700
300
800
300
400
500
000
200
400
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
052
078
130
154
044
140
400
165
080
185
030
040
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
035
034
039
034
025
016
016
045
005
015
005
050
MG/L P
0.075
0.095
0.085
0.080
0.095
0.045
0.030
0.105
0.035
0.045
0.020
0.110
-------
STOKET RETRIEVAL DATE 75/10/23
42 27 15.0 08a 04 45.0
LOON/E LOON LK CONNECTION
17 7.5 ANTIOCH
T/t LOON LAKE
bANK BETWEEN LKS AT tND OF N PENINSULA
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/06/02
73/07/07
73/08/18
73/09/09
73/10/14
73/11/04
73/12/02
74/01/06
74/02/10
74/03/18
74/03/24
74/04/03
74/04/30
00630 00625
TIME DEPTH IM02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
14
10
11
14
13
13
13
15
12
13
06
SO
05
10
45
20
10
30
00
03
30
35
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
.014
.010*
.021
.011
.030
.104
.176
.550
.288
.200
.208
.200
MG/L
2.
1.
2.
6.
0.
1.
2.
0.
1.
3.
1.
1.
1.
850
200
200
800
750
300
200
900
700
600
500
400
100
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
063
017
069
220
028
138
088
064
115
125
210
025
025
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
G
.007
.007
.014
.011
.007
.008
.008
.008
.020
.010
.045
.005*
.025
MG/L P
0.025
0.020
0.030
0.040
0.030
0.030
0.025
0.020
0.060
0.040
0.095
0.005K
0.085
K VALUE KNOWN TO at
LLSS THAN INDICATED
-------
bTORET RETRIEVAL DATE 75/10/23
1757C1
42 26 40.0 088 04
------- |