Clean Lakes Program: Big Long - Lagrange County

 

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Indiana Clean Lakes Program Lake Report

Big Long

  

Lagrange County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-25
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
25
3.3
50
26
98
8.1
7.1
300
240
139
165
0.01
0.166
0.242
0.168
0.331
0.736
0.027
0.176
0.792
1.03
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
26.5
25.8
24
22.5
20
14
12
10.5
9.5
9
8
7
7
7
7
7
7
7
7
7
7
7
7
DO (mg/L)
7.8
7.8
7.4
7.1
6.4
5.5
3.4
2.3
1.8
2.3
1.9
1.7
2.1
2.1
1.8
1.5
0.8
0.5
0.2
0.2
0.2
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 75
  
Blue-Green Dominance (% of NU): 2
  
          Carlson TSI: 63
                    Indiana TSI: 17
                                                                           
Blue-Greens (#/L): 145   Greens (#/L): 27   Diatoms (#/L): 280   Other Algae (#/L): 6581   Rotifers (#/L): 112   Zooplankton (#/L): 0
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-07-27
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
25
2.9
59
26
100
8.4
7.6
330
280
128.5
142.5
0.01
0.173
0.015
0.208
1.91
0.038
0.235
0.025
0.311
0.402
0.317
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)
26.9
26.5
25.2
25
24.8
22.3
18.3
15
12
10
9.8
8.5
8
7.5
7.3
7.1
7
7
7
6.9
6.8
6.8
6.8
6.5
6.5
6.5
DO (mg/L)
8.3
8.4
8.5
8.1
7.8
6
4.9
4.2
2.8
2.3
2.6
3.6
4.4
4.5
4
2.9
2
1.2
0.3
0.1
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 72
  
Blue-Green Dominance (% of NU): 25
  
          Carlson TSI: 42
                    Indiana TSI: 11
                                                                           
Blue-Greens (#/L): 1807   Greens (#/L): 612   Diatoms (#/L): 1473   Other Algae (#/L): 3016   Rotifers (#/L): 339   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-08-26
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
1997
25
4.2
60
30
88.3
8.16
7.5
370
371
121.6
145
0.01
0.192
0.015
0.19
1.73
0.022
0.022
0.021
0.36
1.1
1.2
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
21.5
21.1
21.1
21
21
21
20.8
19.8
15.7
14.2
11
11
10.8
10.3
10
9.5
9.1
8.9
8.8
8.5
8.5
8.5
8.5
8.6
8.5
8.5
DO (mg/L)
7.9
7.91
7.85
7.85
7.83
7.64
7.4
6.49
4.1
0.19
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 36
  
Blue-Green Dominance (% of NU): 57
  
          Carlson TSI: 39
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 999   Greens (#/L): 179   Diatoms (#/L): 284   Other Algae (#/L): 252   Rotifers (#/L): 24   Zooplankton (#/L): 3.4
 
 

2002

          
Sample Location: Deep Hole
Sample Date: 2002-08-12
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
25
6.2
45
26
75.1
8.1
7.6
340
250
122
137.5
0.01
0.124
0.028
0.133
1.05
0.013
0.014
0.018
0.623
0.501
1.157
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
27.4
27.4
27.1
26.8
26.3
25.2
21.7
16.1
14.4
12.7
11.3
10.4
10
9.6
9
8.4
7.9
7.7
7.6
7.6
7.5
7.5
7.5
7.5
7.5
DO (mg/L)
5.9
5.9
5.9
5.9
6
6.2
5.7
5
4.3
2.7
1.3
0.7
0.4
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 36.5
  
Blue-Green Dominance (% of NU): 48
  
          Carlson TSI: 39
                    Indiana TSI: 17
                                                                           
Blue-Greens (#/L): 9640   Greens (#/L): 40   Diatoms (#/L): 289   Other Algae (#/L): 9999   Rotifers (#/L): 60   Zooplankton (#/L): 20.5
 
 

2008

          
Sample Location: Site 1
Sample Date: 2008-07-15
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
23.1
4.5
27
32.5
95.3
8.2
7.6
296.3
201.3
123
133
0.01
0.037
0.026
0.053
2.72
0.013
0.295
0.046
0.05
0.598
0.503
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)
26.2
25.6
25.5
25.2
25.1
25
24.8
21.5
17.3
13.6
11.3
10
9.1
8.4
8.1
7.9
7.6
7.5
7.3
7.2
7.1
7.1
7.1
7.1
DO (mg/L)
7.8
7.8
7.8
7.8
7.7
7.6
7.3
4.8
3.8
4.2
5.2
5.2
5.5
5.6
5.4
4.9
4.2
3.9
3.4
3.1
3.1
3.1
3.1
3
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 7.3
  
          Carlson TSI: 43
                    Indiana TSI: 6
                                                                           
Blue-Greens (#/L): 80   Greens (#/L): 845   Diatoms (#/L): 25   Other Algae (#/L): 146   Rotifers (#/L): 3   Zooplankton (#/L): 5.3
 
 

2008

          
Sample Location: Site 2
Sample Date: 2008-07-15
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
19.5
4.3
32
33
96.1
8.2
7.5
296.2
202.4
122.5
135
0.01
0.039
0.015
0.053
1.96
0.013
0.311
0.031
0.062
0.572
0.53
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
26
25.6
25.4
25.3
25.2
25
23.7
21.3
17.9
13.8
11.2
10
9.3
8.8
8.4
8.2
7.8
7.5
7.2
7.1
7.1
DO (mg/L)
7.8
7.8
7.8
7.8
7.8
7.8
7.7
7.5
6.2
4.6
3.8
4.3
4.5
4.6
4.5
5.3
5.7
5.6
4.5
3.9
3.3
2.9
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 6.9
  
          Carlson TSI: 40
                    Indiana TSI: 5
                                                                           
Blue-Greens (#/L): 69   Greens (#/L): 360   Diatoms (#/L): 55   Other Algae (#/L): 513   Rotifers (#/L): 0   Zooplankton (#/L): 7.6
 
 

2008

          
Sample Location: Site 3
Sample Date: 2008-07-15
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
19
4.3
35
32.2
93.5
8.2
7.5
298.4
124
138
0.01
0.094
0.015
0.107
1.43
0.013
0.297
0.054
0.085
0.534
0.637
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)
26.8
26
25.5
25.4
25.1
25
24.7
21.7
17.1
13
10.6
9.6
8.9
8.4
8.1
7.9
7.6
7.3
7.2
7
DO (mg/L)
7.6
7.6
7.6
7.6
7.6
7.6
7
5.1
3.5
4.2
4.1
4
3.9
3.9
3.6
3.2
2.2
0.8
0.2
0
                                                                           
% Water Column Oxic: 78.9
  
Blue-Green Dominance (% of NU): 24.3
  
          Carlson TSI: 39
                    Indiana TSI: 9
                                                                           
Blue-Greens (#/L): 208   Greens (#/L): 331   Diatoms (#/L): 32   Other Algae (#/L): 267   Rotifers (#/L): 16   Zooplankton (#/L): 4
 
 

 

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)