Clean Lakes Program: Flint - Porter County

 

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Indiana Clean Lakes Program Lake Report

Flint

 

Porter County

1995

         
Sample Location: Deep Hole
Sample Date: 1995-07-11
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
1995
21.6
3.9
62.5
26
110
8.3
7.2
360
334
98
117
0.01
0.315
0.025
0.322
2.65
0.022
0.022
0.028
0.855
0.607
1.653
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)
28.2
26.4
26
25.1
24.9
23.5
19.2
15.4
13
11.1
10.5
10.1
9.9
9.8
9.6
9.6
9.6
9.5
9.5
9.5
9.4
9.4
DO (mg/L)
8.3
8.9
8.9
8.8
8.4
2.7
0.3
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 29
 
Blue-Green Dominance (% of NU): 35
 
          Carlson TSI: 44
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 1234   Greens (#/L): 554   Diatoms (#/L): 180   Other Algae (#/L): 1554   Rotifers (#/L): 40   Zooplankton (#/L): 11
 
 

1999

         
Sample Location: Deep Hole
Sample Date: 1999-07-20
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
1999
21.6
1.6
24
12
109
8.8
7
399
282
101
115
0.01
0.182
0.036
0.221
12.28
0.022
0.022
0.021
1.095
1.131
1.847
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
25.5
25.2
25
23.8
20
14.1
8.5
7
6
5.1
5
5
4.9
4.9
4.8
4.5
4.5
4.5
4.2
4.2
4.1
4.1
DO (mg/L)
8.75
8.95
9
8.75
7
3.25
0.2
0.1
0.05
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 18
 
Blue-Green Dominance (% of NU): 58
 
          Carlson TSI: 55
                    Indiana TSI: 30
                                                                           
Blue-Greens (#/L): 1803   Greens (#/L): 415   Diatoms (#/L): 145   Other Algae (#/L): 580   Rotifers (#/L): 145   Zooplankton (#/L): 29.7
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-08-16
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
2001
21.6
2.3
26
15
96
8.6
7.2
385
310
97
1280
0.01
0.16
0.039
0.198
0.23
0.039
0.031
0.171
1.183
0.623
1.911
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)
25.4
25.4
25.4
25.4
25.4
24.7
21.8
18.6
15.4
11.2
8.7
8
7.6
7.3
7.2
7.1
7
7
7
6.9
6.9
6.9
6.9
6.8
DO (mg/L)
7.86
7.86
7.8
7.8
7.8
7.6
2.1
1
0.6
0.6
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 27
 
Blue-Green Dominance (% of NU): 68
 
          Carlson TSI: 40
                    Indiana TSI: 29
                                                                           
Blue-Greens (#/L): 2605   Greens (#/L): 249   Diatoms (#/L): 268   Other Algae (#/L): 553   Rotifers (#/L): 143   Zooplankton (#/L): 29.1
 
 

2005

         
Sample Location: Deep Hole
Sample Date: 2005-06-28
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
2005
21
2.8
21
5.6
123
9.1
8.8
565
433
100
100
0.01
0.01
0.019
0.024
0.72
0.013
0.013
0.053
0.187
0.506
0.573
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)
30
29.9
29.9
28.4
24.6
22.2
19
15
12.6
10.5
9.4
8.7
7.6
6.3
6
5.8
5.7
5.4
5.4
5.3
5.2
5.2
5.2
DO (mg/L)
9
9.2
9.3
10.3
10.9
8.7
5.3
1.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 28.6
 
Blue-Green Dominance (% of NU): 0
 
          Carlson TSI: 40
                    Indiana TSI: 9
                                                                           
Blue-Greens (#/L): 0   Greens (#/L): 0   Diatoms (#/L): 43   Other Algae (#/L): 0   Rotifers (#/L): 0   Zooplankton (#/L): 0
 
 

2013

         
Sample Location: Deep Hole
Sample Date: 2013-07-01
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
2013
14
1.3
26.1
13
8.7
7
505
598
94
106
0
0.144
0.04
0.165
32.2
0.013
0.013
0.018
0.582
0.815
1.018
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
25.18
23.74
22.44
16.27
12.94
10.56
9.75
9.31
9.15
8.95
8.93
8.74
DO (mg/L)
8.27
8.2
8.12
6.29
3.78
0.3
0.19
0.17
0.18
0.16
0.15
0.15
0.15
0.13
                                                                           
% Water Column Oxic: 28.57
 
Blue-Green Dominance (% of NU): 92.8
 
Blue-Green Dominance (% of cells): 75.8
          Carlson TSI: 64
                   
                                                                           
Blue-Greens (#/L): 78264   Greens (#/L): 2835   Diatoms (#/L): 12476   Other Algae (#/L): 9641   Rotifers (#/L): 76   Zooplankton (#/L): 8
Blue-Greens (cells/L): 527   Greens (cells/L): 17   Diatoms (cells/L): 14   Other Algae (cells/L): 10   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)