Clean Lakes Program: T Lake - Sullivan County

 

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Indiana Clean Lakes Program Lake Report

T Lake

 

Sullivan County

2001

         
Sample Location: Deep Hole
Sample Date: 2001-07-24
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
7.6
3.8
61
12.75
71.5
8
7.3
1670
2680
86
491
0.01
0.918
0.025
0.732
0.68
0.013
0.013
0.018
3.833
0.144
5.949
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)
28.8
28.1
27.8
27.9
27.2
25
18.3
14
13.2
DO (mg/L)
5.5
5.3
5.8
5.8
5.4
3
0.2
0.2
0.1
                                                                           
% Water Column Oxic: 57
 
Blue-Green Dominance (% of NU): 27
 
          Carlson TSI: 40
                    Indiana TSI: 29
                                                                           
Blue-Greens (#/L): 23328   Greens (#/L): 0   Diatoms (#/L): 36   Other Algae (#/L): 63355   Rotifers (#/L): 72   Zooplankton (#/L): 29.4
 
 

2008

         
Sample Location: Deep Hole
Sample Date: 2008-07-28
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
2008
8
3.2
31.4
10.8
95.1
7.5
7.1
1440
3840
66
447
0.01
0.567
0.01
0.123
3.62
0.032
0.052
0.018
5.154
0.489
6.497
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
27
26.9
27.2
26.2
21
17
14.4
13.3
DO (mg/L)
7.5
7.5
7.4
8.3
7.9
10.3
1
0.7
0.6
                                                                           
% Water Column Oxic: 62.5
 
Blue-Green Dominance (% of NU): 77.7
 
          Carlson TSI: 41
                    Indiana TSI: 31
                                                                           
Blue-Greens (#/L): 5771   Greens (#/L): 50   Diatoms (#/L): 67   Other Algae (#/L): 1501   Rotifers (#/L): 0   Zooplankton (#/L): 41.4
 
 

2014

         
Sample Location: Deep Hole
Sample Date: 2014-07-28
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
2014
7.62
3.3
34.67
13.78
7.3
7.2
1630
3880
80
443
0.01
1.104
0.01
0.16
4.38
0.013
0.013
0.038
4.599
0.495
5.098
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
24.78
24.57
24.79
20.17
15.61
13.51
DO (mg/L)
7.35
7.45
7.21
21.11
33.6
0.21
0.17
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 100
 
Blue-Green Dominance (% of cells): 78.3
          Carlson TSI: 52
                   
                                                                           
Blue-Greens (#/L): 2160   Greens (#/L): 40   Diatoms (#/L): 29   Other Algae (#/L): 334   Rotifers (#/L): 65   Zooplankton (#/L): 129
Blue-Greens (cells/L): 39   Greens (cells/L): 0   Diatoms (cells/L): 0   Other Algae (cells/L): 0   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2015

         
Sample Location: deep hole
Sample Date: 2015-07-15
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
2015
7.6
2.5
23.62
7.38
7
6.6
1276
4120
65
94
0.01
0.012
0.023
0.026
2.38
0.083
0.065
0.018
0.135
0.298
0.452
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)
26.6
26.09
24.93
21.22
17.26
15.37
13.5
12.69
DO (mg/L)
7.53
7.47
7.3
8.7
2.51
0.37
0.26
0.17
                                                                           
% Water Column Oxic: 57.14
 
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 45
                   
                                                                           
Blue-Greens (#/L):   Greens (#/L):   Diatoms (#/L):   Other Algae (#/L):   Rotifers (#/L):   Zooplankton (#/L):
Blue-Greens (cells/L):   Greens (cells/L):   Diatoms (cells/L):   Other Algae (cells/L):   Rotifers (cells/L):   Zooplankton (cells/L):
 
 

 

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)