Clean Lakes Program: Troy Cedar - Whitley County

 

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Indiana Clean Lakes Program Lake Report

Troy Cedar

  

Whitley County

1990

          
Sample Location: Deep Hole
Sample Date: 1990-07-03
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
26.8
1.6
35
12.5
118
8.6
7.1
470
370
165.8
51
0.027
0.137
0.036
0.088
3.296
3.878
0.033
0.191
2.373
2.357
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)
24.7
23
20.1
19
17.5
14.5
11.1
9.6
8.5
7.8
7.1
6.8
6.5
6.1
6
6
6
6
5.9
5.9
5.9
5.9
5.9
5.8
DO (mg/L)
10.1
10.2
7.3
4.3
2.6
0.9
1.9
1.6
1.7
1.9
2.6
3.1
3.6
3.5
3.4
2.8
1.3
0.4
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 71
  
Blue-Green Dominance (% of NU): 92
  
          Carlson TSI: 55
                    Indiana TSI: 34
                                                                           
Blue-Greens (#/L): 36354   Greens (#/L): 316   Diatoms (#/L): 880   Other Algae (#/L): 1724   Rotifers (#/L): 308   Zooplankton (#/L): 0
 
 

1994

          
Sample Location: Deep Hole
Sample Date: 1994-07-26
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
1994
24.3
0.9
15
10
100
8.6
7.4
365
350
135.3
202.1
0.01
0.392
0.01
0.439
3.27
0.022
0.04
0.018
1.091
0.589
1.682
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
28.5
28.5
28.5
28
26.5
20.5
17.5
15.5
13.5
13.5
12.5
12.5
11.5
11
10.5
9.5
9.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
DO (mg/L)
8.5
8.5
8.3
8.1
4.2
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
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 19
  
Blue-Green Dominance (% of NU): 81
  
          Carlson TSI: 47
                    Indiana TSI: 38
                                                                           
Blue-Greens (#/L): 14231   Greens (#/L): 572   Diatoms (#/L): 120   Other Algae (#/L): 1205   Rotifers (#/L): 0   Zooplankton (#/L): 1540
 
 

1998

          
Sample Location: Deep Hole
Sample Date: 1998-07-20
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
1998
25.3
1
5.5
8.25
120
8.75
7.31
375.2
288.1
140.8
183.7
0.01
0.288
0.044
0.351
19.58
0.022
1.137
0.018
0.601
1.065
1.304
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)
29.9
29.4
28.5
27.2
26
22.6
15.5
12.8
10.2
9.6
9.1
8.9
8.8
8.3
7.9
7.4
7
6.9
6.8
6.8
6.7
6.7
6.7
6.7
6.7
6.7
6.7
DO (mg/L)
10.06
9.55
9.25
7.77
1.61
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 12
  
Blue-Green Dominance (% of NU): 28
  
          Carlson TSI: 60
                    Indiana TSI: 29
                                                                           
Blue-Greens (#/L): 3016   Greens (#/L): 946   Diatoms (#/L): 5500   Other Algae (#/L): 808   Rotifers (#/L): 355   Zooplankton (#/L): 11.2
 
 

2003

          
Sample Location: Deep Hole
Sample Date: 2003-08-19
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
24.3
0.5
7
5
135
9
7.5
377.3
298.3
121
189
0.01
0.3
0.047
0.363
31.86
0.126
0.403
0.018
1.044
2.08
2.2
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)
26.7
26.5
26.4
26.3
25.1
22.5
18.9
15.3
13.4
11.7
10.5
9.7
9
8.2
7.6
7.1
6.8
6.4
6.2
6.1
6.1
6.1
6
6
DO (mg/L)
11.2
11.8
10.8
7.8
0.5
0.02
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 12.5
  
Blue-Green Dominance (% of NU): 81
  
          Carlson TSI: 65
                    Indiana TSI: 43
                                                                           
Blue-Greens (#/L): 24727   Greens (#/L): 426   Diatoms (#/L): 3903   Other Algae (#/L): 656   Rotifers (#/L): 853   Zooplankton (#/L): 155
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-07-20
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
2009
25.6
0.5
3.84
5
128
9
7.35
323.6
252.5
127
151
0.01
0.024
0.032
0.105
46.67
0.397
1.443
0.014
0.915
1.791
2.528
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
24.2
23.4
23.2
23.1
22.4
18.2
15.3
13.4
12.1
11
10.3
9.4
8.8
8
7.7
7.4
7.2
7.2
7.1
7.1
7
7
7
7
7
6.9
DO (mg/L)
14.57
13.2
11
8
5.2
0.27
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 11.71
  
Blue-Green Dominance (% of NU): 95.7
  
          Carlson TSI: 64
                    Indiana TSI: 52
                                                                           
Blue-Greens (#/L): 91123   Greens (#/L): 263   Diatoms (#/L): 3039   Other Algae (#/L): 338   Rotifers (#/L): 450   Zooplankton (#/L): 30.4
 
 

2011

          
Sample Location: Deep Hole
Sample Date: 2011-07-12
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
2011
24.69
0.8
6.94
509
146
9
7.5
408
294
162
196
0.01
0.23
0.086
0.292
41.52
1.541149
1.925056
0.018
1.225678
1.75515
2.416979
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)
29.6
29.3
27.7
26.6
23.8
20.4
16
13.2
11.5
11
10.6
10.2
9.8
9.3
6.6
8.1
7.6
7.4
7.1
7
6.9
6.7
6.6
6.5
6.5
DO (mg/L)
11.4
11.3
11.1
8.6
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 8.1
  
Blue-Green Dominance (% of NU): 98.1
  
Blue-Green Dominance (% of cells): 70.4
           Carlson TSI: 66
                   
                                                                           
Blue-Greens (#/L): 7451387   Greens (#/L): 1206415   Diatoms (#/L): 1259639   Other Algae (#/L): 674173   Rotifers (#/L): 15   Zooplankton (#/L): 20.6
Blue-Greens (cells/L): 289492   Greens (cells/L): 3689   Diatoms (cells/L): 1260   Other Algae (cells/L): 674   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2014

          
Sample Location: Deep Hole
Sample Date: 2014-08-05
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
2014
25.3
0.61
22.86
6.56
8.6
7.5
437
732
155
180
0.01
0.224
0.036
0.2685
17.89
0.094
1.465
0.018
0.933
1.242
2.158
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)
25.99
25.67
24.72
23.76
22.7
18.92
13.95
11.87
10.7
10.15
9.39
7.92
7.5
7.25
6.7
6.62
6.28
5.42
5.88
5.8
5.74
5.73
5.68
5.6
5.6
5.6
DO (mg/L)
11.27
11.48
9.3
6.25
2.25
0.21
0.09
0.08
0.05
0.05
0.04
0.03
0.03
0.07
0.02
0.02
0.02
0.01
0.01
0
0
0.01
0.02
0.01
0
0.01
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 96.9
  
Blue-Green Dominance (% of cells): 78.9
           Carlson TSI: 68
                   
                                                                           
Blue-Greens (#/L): 177839   Greens (#/L): 9612   Diatoms (#/L): 28839   Other Algae (#/L): 8811   Rotifers (#/L): 156   Zooplankton (#/L): 33
Blue-Greens (cells/L): 2123   Greens (cells/L): 29   Diatoms (cells/L): 29   Other Algae (cells/L): 9   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)