Clean Lakes Program: Pigeon - Lagrange County

 

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Indiana Clean Lakes Program Lake Report

Pigeon

  

Lagrange County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-26
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
1989
9.1
1.8
18
7.5
99
7.5
6.9
630
650
275
325
0.01
0.013
0.029
0.044
1.907
0.631
0.033
3.704
1.146
4.538
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
23.5
22.5
21
20
20
19
17.5
DO (mg/L)
8.9
7.7
5.9
3.5
1.8
0.4
0.2
0.2
                                                                           
% Water Column Oxic: 75
  
Blue-Green Dominance (% of NU): 84
  
          Carlson TSI: 53
                    Indiana TSI: 29
                                                                           
Blue-Greens (#/L): 18482   Greens (#/L): 643   Diatoms (#/L): 2817   Other Algae (#/L): 124   Rotifers (#/L): 33   Zooplankton (#/L): 0
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-07-06
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
1993
9.1
1.2
9
8
114
8.4
7.7
620
590
234
260
0.01
0.01
0.01
0.12
20.63
1.236
0.565
0.018
1.597
0.636
0.435
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)
26.1
26
24.5
23.8
22.8
18.5
17.5
17
15.2
12.5
11
DO (mg/L)
12.7
12
9.8
7.5
6.9
4.3
3.4
1.8
0.2
0.1
0.1
                                                                           
% Water Column Oxic: 76.9
  
Blue-Green Dominance (% of NU): 6.9
  
          Carlson TSI: 51
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 3794   Greens (#/L): 28398   Diatoms (#/L): 11258   Other Algae (#/L): 11195   Rotifers (#/L): 0   Zooplankton (#/L): 578
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-07-26
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
1993
8.8
1.6
33
11
86
8.1
7.6
605
600
238.5
279.5
0.01
0.01
0.047
0.027
18.67
1.006
0.369
0.025
2.422
0.689
0.595
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
22
22
22
20.7
20.2
19.2
18
14.6
13
DO (mg/L)
7.9
7.7
7.7
7.7
6.1
4.5
1.4
0.2
0.1
0.1
                                                                           
% Water Column Oxic: 68.2
  
Blue-Green Dominance (% of NU): 65.5
  
          Carlson TSI: 57
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 7673   Greens (#/L): 871   Diatoms (#/L): 571   Other Algae (#/L): 1088   Rotifers (#/L): 0   Zooplankton (#/L): 1508
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-08-09
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
1993
10
1
33
10
107
7.7
7.6
600
625
233.5
344
0.01
0.04
0.047
0.087
18.19
0.956
0.022
0.018
4.781
0.421
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)
17.5
17
16
16
15.5
15
15
14
12.5
10.5
10
10
DO (mg/L)
12
11.6
10.8
7.4
6.3
4.6
2.4
0.2
0.1
0
0
0
                                                                           
% Water Column Oxic: 60
  
Blue-Green Dominance (% of NU): 3.7
  
          Carlson TSI: 60
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 2054   Greens (#/L): 2054   Diatoms (#/L): 16072   Other Algae (#/L): 34983   Rotifers (#/L): 0   Zooplankton (#/L): 114
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-08-23
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
1993
9.1
1.9
34
15
109
8.1
7.5
650
470
239.5
337.5
0.01
0.156
0.046
0.193
12.91
0.881
0.022
0.018
4.781
0.658
0.693
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
23
22.8
21.5
21
19.6
17
15.1
13.8
DO (mg/L)
8.7
9.7
9.7
9.4
4.2
2.4
0
0
0
0
                                                                           
% Water Column Oxic: 40.8
  
Blue-Green Dominance (% of NU): 15
  
          Carlson TSI: 55
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 8305   Greens (#/L): 2103   Diatoms (#/L): 30750   Other Algae (#/L): 15822   Rotifers (#/L): 103   Zooplankton (#/L): 0
 
 

2000

          
Sample Location: Deep Hole
Sample Date: 2000-07-06
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
2000
9.1
1.1
15
8
109
8.45
7.7
619
519
225
283
0.014
0.01
0.073
0.066
22.16
2.249
0.257
0.018
2.442
1.674
5.603
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)
25.8
24.9
24.4
24.2
22.4
21.1
18.3
14
11.4
10.4
DO (mg/L)
11.2
11.3
10.3
9.7
6
2.3
0.3
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 50
  
Blue-Green Dominance (% of NU): 1
  
          Carlson TSI: 62
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 402   Greens (#/L): 7841   Diatoms (#/L): 8243   Other Algae (#/L): 49159   Rotifers (#/L): 503   Zooplankton (#/L): 16
 
 

2003

          
Sample Location: Deep Hole
Sample Date: 2003-07-01
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
9
2
50
14.5
136.1
8.3
7.6
642
488
245
271
0.011
0.022
0.026
0.084
5.81
1.549
0.086
0.018
3.027
0.629
3.449
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)
27.1
25.3
24.2
23.2
21.6
18
14.6
12
10.1
9
DO (mg/L)
10.7
11.5
11.5
11.8
10.3
8.3
0.5
0
0
0
                                                                           
% Water Column Oxic: 44.4
  
Blue-Green Dominance (% of NU): 84
  
          Carlson TSI: 50
                    Indiana TSI: 43
                                                                           
Blue-Greens (#/L): 101012   Greens (#/L): 846   Diatoms (#/L): 17479   Other Algae (#/L): 1546   Rotifers (#/L): 74   Zooplankton (#/L): 31
 
 

2011

          
Sample Location: Deep Hole
Sample Date: 2011-07-05
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
2011
8.84
1.1
41.4
13.5
117.8
8.4
7.7
561
110.9
252
257
0.01
0.01
0.033
0.043
7.93
1.519592
0.676942
0.019665
1.835097
1.171024
2.5055775
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)
28.7
25.4
24.7
22.9
21.3
19.8
16.7
14.4
12
10.9
DO (mg/L)
9.08
9.54
9.59
7.84
5.15
2.27
0.04
0.03
0.02
0.02
                                                                           
% Water Column Oxic: 45.2
  
Blue-Green Dominance (% of NU): 81.4
  
Blue-Green Dominance (% of cells): 38.7
           Carlson TSI: 55
                   
                                                                           
Blue-Greens (#/L): 793520   Greens (#/L): 900512   Diatoms (#/L): 71328   Other Algae (#/L): 285311   Rotifers (#/L): 8   Zooplankton (#/L): 15.1
Blue-Greens (cells/L): 15175   Greens (cells/L): 2946   Diatoms (cells/L): 71   Other Algae (cells/L): 460   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)