Clean Lakes Program: Pigeon - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Pigeon

  

Steuben County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-11
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
11.6
1.2
27
8
83
8
7
750
470
315
283
0.013
0.046
0.097
0.125
3.906
3.281
0.076
1.234
1.773
3.051
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)
26
22.3
19
17
16
14.5
10.5
8
7.3
7
6.5
DO (mg/L)
8.5
7.2
0.7
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 16
  
          Carlson TSI: 64
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 3221   Greens (#/L): 403   Diatoms (#/L): 54   Other Algae (#/L): 16213   Rotifers (#/L): 645   Zooplankton (#/L): 0
 
 

1990

          
Sample Location: Deep Hole
Sample Date: 1990-08-13
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
1990
11.6
0.7
22
7
80
7.9
7
600
460
0.01
0.031
0.093
0.218
2.781
0.632
0.058
2.314
1.258
1.028
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)
18.8
18
17.9
17.4
16
13
10
8.9
8
7.4
DO (mg/L)
8.1
7.1
7.1
6.1
2
0.4
0.4
0.4
0.4
0.4
                                                                           
% Water Column Oxic: 50
  
Blue-Green Dominance (% of NU): 18
  
          Carlson TSI: 68
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 155   Greens (#/L): 17   Diatoms (#/L): 0   Other Algae (#/L): 641   Rotifers (#/L): 51   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-08-18
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
1992
11.6
2.9
28
11
102.29
7.9
7.2
600
560
245.5
282.7
0.01
0.153
0.041
0.117
0.746
4.028
0.061
1.592
1.044
0.69
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)
21.7
20.5
19.7
18.9
17.8
16.8
14.4
10.3
8.2
7.8
7.3
7.1
DO (mg/L)
12.3
11.4
9.3
2.9
1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 36.4
  
Blue-Green Dominance (% of NU): 18
  
          Carlson TSI: 52
                    Indiana TSI: 33
                                                                           
Blue-Greens (#/L): 13892   Greens (#/L): 2315   Diatoms (#/L): 1543   Other Algae (#/L): 57129   Rotifers (#/L): 701   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-08-11
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
11.6
1.6
20
9
147.2
8.52
7.5
510
465
262.5
307.8
0.01
0.509
0.05
0.57
32.04
1.339
0.049
0.024
2.189
1.2
3.5
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
22.7
22
20.2
17.2
14
10.8
9.5
9
8.2
8
DO (mg/L)
12.3
12.6
12.7
10.6
4
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 44.4
  
Blue-Green Dominance (% of NU): 16
  
          Carlson TSI: 60
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 16964   Greens (#/L): 13924   Diatoms (#/L): 0   Other Algae (#/L): 74303   Rotifers (#/L): 547   Zooplankton (#/L): 52.7
 
 

2002

          
Sample Location: Deep Hole
Sample Date: 2002-07-08
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
11.6
2.6
47
13
118.8
8.3
7.5
690
390
264
207
0.01
0.087
0.042
0.144
0
1.574
0.52
0.087
1.984
0.897
3.613
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)
26.5
26.3
25.5
24.2
21.9
19
12
10.7
10.2
9.8
9.6
9.5
DO (mg/L)
9.06
9.24
9.68
9.78
4.98
0.76
0.21
0.19
0.18
0.17
0.16
0.16
                                                                           
% Water Column Oxic: 27.4
  
Blue-Green Dominance (% of NU): 22
  
          Carlson TSI: 52
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 3426   Greens (#/L): 1963   Diatoms (#/L): 765   Other Algae (#/L): 9414   Rotifers (#/L): 249   Zooplankton (#/L): 107.2
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-07-06
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
2009
10.9
1.2
6.39
5.4
171.4
8.3
7.5
532
335
247
228.5
0.01
0.08
0.033
0.151
116
3.318
1.347
0.018
1.705
1.691
2.63
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)
22.6
21.5
20.5
19.9
19.2
18.1
16.5
11.8
9.8
8.8
8.3
7.9
DO (mg/L)
11.8
13.4
14.9
12
2.8
1.2
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 27.52
  
Blue-Green Dominance (% of NU): 0.1
  
          Carlson TSI: 63
                    Indiana TSI: 53
                                                                           
Blue-Greens (#/L): 245   Greens (#/L): 0   Diatoms (#/L): 16817   Other Algae (#/L): 241008   Rotifers (#/L): 612   Zooplankton (#/L): 142.8
 
 

2013

          
Sample Location: Deep Hole
Sample Date: 2013-07-08
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
2013
10.67
1.35
7.1
7.5
6.3
6.6
690
636
222
225
0.002
0.004
0.0445
0.053
46.65
6.653
3.909
0.027
1.64
1.86
2.99
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)
23.7
21.52
20.07
19.45
18.78
15.86
10.63
8.21
7.45
7.17
7.03
DO (mg/L)
13.66
12.14
3.83
3.62
1.5
0.12
0.11
0.11
0.09
0.09
0.09
                                                                           
% Water Column Oxic: 37.49
  
Blue-Green Dominance (% of NU): 95.9
  
Blue-Green Dominance (% of cells): 95.9
           Carlson TSI: 61
                   
                                                                           
Blue-Greens (#/L): 196891   Greens (#/L): 6399   Diatoms (#/L):   Other Algae (#/L): 1476   Rotifers (#/L): 354   Zooplankton (#/L): 235
Blue-Greens (cells/L): 521   Greens (cells/L): 21   Diatoms (cells/L):   Other Algae (cells/L): 1   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2014

          
Sample Location: Deep Hole
Sample Date: 2014-07-22
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
2014
10.97
1.8
36.17
13.5
8.5
7.5
677
674
253
278
0.01
0.176
0.036
0.259
8.755
1.746
0.058
0.127
3.13
1.1595
1.106
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)
26.08
25.1
23.1
21.3
19.4
15.6
9.6
8.3
7.5
6.5
6.7
DO (mg/L)
8.6
9.1
9.8
6.5
1.5
0.5
0.4
0.3
0.2
0.2
0.1
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 21.1
  
Blue-Green Dominance (% of cells): 26.3
           Carlson TSI: 60
                   
                                                                           
Blue-Greens (#/L): 20026   Greens (#/L): 42456   Diatoms (#/L): 1602   Other Algae (#/L): 11482   Rotifers (#/L): 364   Zooplankton (#/L): 168
Blue-Greens (cells/L): 20   Greens (cells/L): 42   Diatoms (cells/L): 12   Other Algae (cells/L): 21   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)