Clean Lakes Program: Clear - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Clear

  

Steuben County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-10
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1989
32.3
2.3
62
29
102
6.7
6.8
340
290
133
147
0.017
0.017
0.092
0.094
0.436
0.866
0.035
0.018
1.201
1.206
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
27
27
27
27
18
17
16
15
10
9
8
7.5
7
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
DO (mg/L)
8.2
8.1
8.1
8.1
8.1
8.1
8
8.3
7.5
6.9
6.9
6.8
6.2
6.2
6.5
6.1
6.1
6.2
6.1
6.1
6.1
6
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 48
  
          Carlson TSI: 59
                    Indiana TSI: 10
                                                                           
Blue-Greens (#/L): 549   Greens (#/L): 219   Diatoms (#/L): 131   Other Algae (#/L): 198   Rotifers (#/L): 42   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-07-13
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1992
32.3
3.3
40
31
32.26
7.2
6.9
330
290
115.5
132.4
0.01
0.01
0.02
0.024
0.142
0.274
0.058
0.108
0.796
0.85
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
23.2
23.2
23.2
23.1
22.8
22.1
21.2
19.8
16
13.8
11.9
10.7
9.8
9.1
8.6
7.4
DO (mg/L)
8.8
9
9.1
9.1
9.1
8.8
9.2
9.6
10.7
12.4
12
11.5
10
9.7
8.6
8.2
7
5
4.5
4
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 72
  
          Carlson TSI: 45
                    Indiana TSI: 15
                                                                           
Blue-Greens (#/L): 1565   Greens (#/L): 309   Diatoms (#/L): 146   Other Algae (#/L): 146   Rotifers (#/L): 10   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-08-03
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1992
32.3
4.1
37
31
32.35
8.1
7
312
295
110
134
0.01
0.016
0.026
0.022
0.106
0.469
0.067
0.084
0.425
0.578
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
22.7
22.1
22
21.9
21.8
21.8
21.7
21
20.2
16.5
12.3
10.8
9.9
9.1
8.3
8
7.1
7
6.5
6.2
6.1
DO (mg/L)
8.9
9.2
9.2
9.2
9.2
9.1
8.9
8.8
8.8
12.7
10.1
8.6
8.2
7.6
6.6
6.1
6.1
6.1
4.8
3.6
2.7
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 54
  
          Carlson TSI: 46
                    Indiana TSI: 15
                                                                           
Blue-Greens (#/L): 3860   Greens (#/L): 100   Diatoms (#/L): 1890   Other Algae (#/L): 1227   Rotifers (#/L): 10   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-08-24
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1992
32.3
5.4
39
36
97.22
7.85
8.15
310
310
109
109
0.01
0.01
0.017
0.01
0.414
0.386
0.924
0.06
0.23
0.582
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
23
22.5
22.1
22.1
22.5
22.1
21.5
21.1
20.9
18.9
15.2
11
10
9
8.5
8.1
7.9
7.1
7.1
7
7
7
7
7
6.9
6.9
6.9
6.9
6.9
6.9
6.9
6.9
6.9
DO (mg/L)
9.1
8.5
8.5
8.6
8.9
9
8.8
8.3
7.7
7.15
8.1
7.15
6.4
5.35
4.75
4.2
3.55
3.35
3.2
3.05
3
2.95
2.8
2.8
2.85
2.9
2.7
2.15
1.7
1.35
1.3
1.2
0.7
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 30
  
          Carlson TSI: 41
                    Indiana TSI: 7
                                                                           
Blue-Greens (#/L): 851   Greens (#/L): 178   Diatoms (#/L): 648   Other Algae (#/L): 627   Rotifers (#/L): 569   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-07-28
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1997
32.3
4.4
61
40
105.7
8.46
7.35
340
253
107
148.4
0.01
0.075
0.018
0.078
1.81
0.029
0.293
0.018
0.097
0.497
0.497
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
27.4
27.3
27.3
27
26.2
25.5
23.8
21.9
19
16.2
14.8
13.5
12.5
11.3
10.4
10
9.7
9.3
9.1
9
8.9
8.8
8.8
8.7
8.6
8.6
8.5
8.3
8.3
8.2
8.2
8.1
8.1
8.1
DO (mg/L)
8.3
8.4
8.4
8.4
8.4
8.6
8.3
9.1
8.8
7.9
6.9
6.3
5.9
5.5
5.2
5
4.7
4.6
4
3.8
3.3
3
3.2
3.2
2.8
2.6
2.1
1.5
1.2
0.9
0.8
0.5
0.2
0.1
                                                                           
% Water Column Oxic: 96.8
  
Blue-Green Dominance (% of NU): 77
  
          Carlson TSI: 40
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 1416   Greens (#/L): 40   Diatoms (#/L): 162   Other Algae (#/L): 196   Rotifers (#/L): 12   Zooplankton (#/L): 12.3
 
 

2002

          
Sample Location: Deep Hole
Sample Date: 2002-07-02
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2002
32.3
6
50
40
109.1
8.3
7.7
355
271
123
133
0.01
0.013
0.02
0.023
0.41
0.013
0.21
0.145
0.072
0.785
0.592
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
27.6
27.7
27.5
27.4
27.3
25.7
21.9
19.4
16.5
14.4
13.1
12.5
11.6
11
10.4
9.9
9.7
8.9
8.6
8.2
7.8
7.6
7.6
7.5
7.5
7.4
7.4
7.4
7.3
7.3
7.2
7.2
DO (mg/L)
8.6
8.6
8.6
8.6
8.7
8.3
9.9
8.7
9.2
9.4
8.9
8.6
7.8
7.3
7.1
6.8
6.6
6.2
6.1
5.8
5.5
5.2
5.5
5.5
5.6
5.4
5.1
5
4.8
4.7
4.5
4.2
                                                                           
% Water Column Oxic: 93.8
  
Blue-Green Dominance (% of NU): 77
  
          Carlson TSI: 34
                    Indiana TSI: 14
                                                                           
Blue-Greens (#/L): 1484   Greens (#/L): 73   Diatoms (#/L): 153   Other Algae (#/L): 145   Rotifers (#/L): 48   Zooplankton (#/L): 25.9
 
 

2008

          
Sample Location: Site 1
Sample Date: 2008-07-07
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2008
32
2.6
22
21.4
129.3
8.6
8.8
306.4
214.1
130
126
0.01
0.01
0.055
0.035
3.45
0.013
0.013
0.115
0.018
0.67
0.568
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
25
24.9
24.9
24.8
24.7
23.3
22.6
22.1
21.3
18.6
17.6
11.7
9.7
9.2
7.6
7.4
6.9
6.7
6.5
6.4
6.3
6.2
6.1
6.1
6.1
6
6
6
5.9
5.9
5.9
DO (mg/L)
10.5
10.6
10.4
10.6
10.6
10.9
10.3
9.5
8.8
8.5
8.3
7.8
8.2
8
8.6
8.3
8.2
7.9
8.3
8.2
7.8
7.9
7.9
7.9
7.9
7.9
8
8
7.2
6.5
6.4
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 16.8
  
          Carlson TSI: 50
                    Indiana TSI: 11
                                                                           
Blue-Greens (#/L): 1051   Greens (#/L): 1379   Diatoms (#/L): 788   Other Algae (#/L): 2890   Rotifers (#/L): 66   Zooplankton (#/L): 77.7
 
 

2008

          
Sample Location: Site 2
Sample Date: 2008-07-07
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2008
26.2
3.1
18
23
125.1
8.7
7.6
305.4
217.9
125
146
0.01
0.034
0.053
0.099
3.81
0.013
0.395
0.018
0.073
0.678
0.558
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
25.2
25.1
25
25
24.9
23.2
22.8
22.4
21.6
18.8
14.6
13.2
12.1
10.8
9.7
8.7
7.7
7.3
7
6.8
6.7
6.5
6.4
6.3
6.2
6.2
6.2
6.1
DO (mg/L)
10.3
10.3
10.3
10.3
10.4
10.4
10
9.4
8.3
6
5
4.3
4.7
5.7
7.1
8.6
9.5
9.8
9.6
8.8
8.1
6.7
5.7
4
2.2
1.2
0.7
0.2
                                                                           
% Water Column Oxic: 91.6
  
Blue-Green Dominance (% of NU): 64
  
          Carlson TSI: 50
                    Indiana TSI: 20
                                                                           
Blue-Greens (#/L): 1224   Greens (#/L): 122   Diatoms (#/L): 441   Other Algae (#/L): 98   Rotifers (#/L): 24   Zooplankton (#/L): 3.5
 
 

2008

          
Sample Location: Site 3
Sample Date: 2008-07-07
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2008
24
2.2
20
20.5
131.6
8.6
7.6
308.6
221.9
126
149
0.01
0.047
0.04
0.258
3.05
0.013
0.037
0.093
0.625
0.662
0.898
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
25.7
25.6
25.6
25.4
24.5
23.3
22.6
21.3
18.4
15.1
12.3
10.3
9
7.6
7
6.8
6.7
6.5
6.5
6.4
6.3
6.2
6.1
6.1
6.1
DO (mg/L)
10.6
10.6
10.1
10.2
11.3
10.2
10.2
9
7.8
6
4.8
4.5
3.6
3.5
3.4
2.4
1.8
2.3
0.8
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 66.7
  
Blue-Green Dominance (% of NU): 82.2
  
          Carlson TSI: 49
                    Indiana TSI: 23
                                                                           
Blue-Greens (#/L): 2942   Greens (#/L): 98   Diatoms (#/L): 392   Other Algae (#/L): 120   Rotifers (#/L): 22   Zooplankton (#/L): 4.7
 
 

2010

          
Sample Location: Deep Hole
Sample Date: 2010-06-29
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2010
31.7
5.6
25.93
29.5
101
8.3
7.6
301
220
125
142
0.01
0.025
0.013
0.052
0.56
0.013
0.269
0.024
0.029
0.418
0.302
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
25.1
25.1
25.1
25.1
25.1
25.1
25
21.1
16.5
14.5
13.8
13.3
12.3
11
9.8
8.9
8.7
7.9
7.6
7.4
7.4
7.3
7.2
7.2
7.1
7.1
7
7
6.9
6.9
6.9
DO (mg/L)
8.3
8.3
8.3
8.3
8.3
8.4
8.2
7.9
8.1
7.3
6.4
6
5.8
5.7
5.8
6.1
6.1
6.3
6.2
6.2
6.1
5.9
6
5.8
6
6
5.9
5.8
5.4
5.4
5.1
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 50.9
  
Blue-Green Dominance (% of cells): 81.3
           Carlson TSI: 34
                    Indiana TSI: 35
                                                                           
Blue-Greens (#/L): 403377   Greens (#/L): 29716   Diatoms (#/L): 45522   Other Algae (#/L): 17703   Rotifers (#/L): 0   Zooplankton (#/L): 7.6
Blue-Greens (cells/L): 1317   Greens (cells/L): 94   Diatoms (cells/L): 1157   Other Algae (cells/L): 21   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2012

          
Sample Location: Deep Hole
Sample Date: 2012-07-02
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2012
32.1
3.1
86.7
8.2
7.6
299
210.3
113
143
0.01
0.01
0.01
0.039
2.12
0.013
0.266
0.018
0.075
0.268
0.481
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
27.5
27.2
27
26.8
26.6
26.5
26.2
25.2
20.9
17.6
16.2
14.4
12.4
11.4
10
9.2
8.8
8.3
7.8
7.2
6.9
6.8
6.7
6.6
6.5
6.5
6.5
6.4
6.3
6.3
6.3
6.2
DO (mg/L)
6.9
6.96
6.97
6.94
6.97
6.98
6.94
7.61
9.02
9.43
9.47
9.15
8.72
7.82
7.1
6.4
6.12
5.91
5.75
5.5
5.16
5.22
5.03
5
4.95
4.94
4.95
4.69
4.31
4.08
3.88
3.5
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 99.9
  
Blue-Green Dominance (% of cells): 96.5
           Carlson TSI: 44
                   
                                                                           
Blue-Greens (#/L): 15597997   Greens (#/L): 224903   Diatoms (#/L): 166862   Other Algae (#/L): 166862   Rotifers (#/L):   Zooplankton (#/L): 2
Blue-Greens (cells/L): 2021276   Greens (cells/L): 2554   Diatoms (cells/L): 167   Other Algae (cells/L): 167   Rotifers (cells/L):   Zooplankton (cells/L): 0
 
 

 

In 2011 CLP changed plankton sampling methods, thus the Indiana TSI is no longer calculated.
Epi
 Epilimnion
Alk
 Alkalinity (mg CaCO3/L)
DO
 Dissolved Oxygen (mg/L)
NH3
 Ammonia (mg-N/L)
SRP
 Soluable Reactive Phosphorus (mg-P/L)
Hypo
 Hypolimnion
Chl-a
 Chlorophyll-a (ug/L)
Light 3'
 Percent light penetration at 3ft
NO3
 Nitrate (mg-N/L)
TP
 Total Phosphorus (mg-P/L)
   
Cond
 Conductivity
1% Light Level
 Depth of the 1% light level (ft)
TKN
 Total Kjeldahl Nitrogen (mg-N/L)
Temp
 Temperature (oC)