Clean Lakes Program: Kuhn - Kosciusko County

 

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Indiana Clean Lakes Program Lake Report

Kuhn

  

Kosciusko County

1990

          
Sample Location: Deep Hole
Sample Date: 1990-08-22
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
1990
8.2
2
38
25
77
7.7
7.2
390
405
169
216.3
0.01
0.01
0.012
0.034
0.511
0.518
0.038
2.007
0.644
0.971
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
23
23
22.5
22
21
18.5
16.5
DO (mg/L)
6.7
6.6
6.5
4.4
3
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 63
  
Blue-Green Dominance (% of NU): 88
  
          Carlson TSI: 45
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 4005   Greens (#/L): 126   Diatoms (#/L): 151   Other Algae (#/L): 188   Rotifers (#/L): 89   Zooplankton (#/L): 0
 
 

1994

          
Sample Location: Deep Hole
Sample Date: 1994-08-09
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
1994
8.2
1.9
11
18
93
8.3
7.8
390
425
174.5
186.5
0.01
0.01
0.01
0.032
1.8
0.022
0.022
0.028
0.118
0.23
0.23
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)
24
24
24
24
24
23.5
23
23
21
DO (mg/L)
7.8
7.7
7.8
7.7
7.6
5.4
3.9
2.3
0.4
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 72
  
          Carlson TSI: 41
                    Indiana TSI: 15
                                                                           
Blue-Greens (#/L): 3531   Greens (#/L):   Diatoms (#/L): 454   Other Algae (#/L): 571   Rotifers (#/L): 0   Zooplankton (#/L): 331
 
 

1998

          
Sample Location: Deep Hole
Sample Date: 1998-07-06
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
1998
8.2
2.7
40
20.5
100
8.29
7.51
400
385
170.5
208.1
0.01
0.01
0.029
0.051
8.11
0.022
0.022
0.034
0.185
0.346
0.545
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
25
25
25
24.9
23
18.5
16.1
14.5
13.2
DO (mg/L)
8
8.1
8.1
8.2
7.9
6.6
3.7
0.5
0
0
                                                                           
% Water Column Oxic: 75
  
Blue-Green Dominance (% of NU): 85
  
          Carlson TSI: 50
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 870   Greens (#/L): 29   Diatoms (#/L): 38   Other Algae (#/L): 57   Rotifers (#/L): 10   Zooplankton (#/L): 17.5
 
 

2003

          
Sample Location: Deep Hole
Sample Date: 2003-08-18
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
2003
7.5
3.2
37
19
105.3
8.4
7.7
405
426
174
189
0.011
0.01
0.013
0.027
1.86
0.013
0.013
0.018
0.018
0.606
0.753
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)
28.3
28.3
28.3
27.6
27.1
26.1
24.4
21
DO (mg/L)
8.2
8.2
8.2
7.9
8.2
7.4
4.3
0.73
                                                                           
% Water Column Oxic: 66.7
  
Blue-Green Dominance (% of NU): 82
  
          Carlson TSI: 40
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 1660   Greens (#/L): 10   Diatoms (#/L): 116   Other Algae (#/L): 183   Rotifers (#/L): 39   Zooplankton (#/L): 14.3
 
 

2010

          
Sample Location: Deep Hole
Sample Date: 2010-08-02
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
2010
7.9
2.1
19
18.9
104.8
8.5
7.8
419
410
178
197
0.01
0.01
0.021
0.018
2.62
0.013
0.013
0.018
0.018
0.666
0.7
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)
28.4
28.2
28.1
28
27.6
26.9
26
22.1
18.1
DO (mg/L)
8
8.1
8.1
8.2
7.5
5.7
1.5
0.6
0.1
                                                                           
% Water Column Oxic: 63
  
Blue-Green Dominance (% of NU): 86
  
Blue-Green Dominance (% of cells): 59.2
           Carlson TSI: 46
                    Indiana TSI: 43
                                                                           
Blue-Greens (#/L): 5527611   Greens (#/L): 111108   Diatoms (#/L): 1027747   Other Algae (#/L): 2666586   Rotifers (#/L): 0   Zooplankton (#/L): 7
Blue-Greens (cells/L): 29746   Greens (cells/L): 861   Diatoms (cells/L): 1306   Other Algae (cells/L): 2667   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2012

          
Sample Location: Deep Hole
Sample Date: 2012-07-26
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
7.9
2.4
9.11
8
6.8
391
450
174
207
0.01
0.01
0.026
0.048
3.9
0.028
0.028
0.031
0.144
0.82
1.04
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)
28
28.01
27.98
27.86
27.7
27.08
25.49
22.43
18.74
DO (mg/L)
28
7.02
7.05
6.76
6.55
6.01
2.7
0.81
0.41
                                                                           
% Water Column Oxic: 71.4
  
Blue-Green Dominance (% of NU): 73.8
  
Blue-Green Dominance (% of cells): 39.4
           Carlson TSI: 49
                   
                                                                           
Blue-Greens (#/L): 1407448   Greens (#/L): 1871760   Diatoms (#/L): 217647   Other Algae (#/L): 72550   Rotifers (#/L): 530   Zooplankton (#/L): 237
Blue-Greens (cells/L): 13059   Greens (cells/L): 4325   Diatoms (cells/L): 218   Other Algae (cells/L): 87   Rotifers (cells/L): 0   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)