Clean Lakes Program: Rothenberger - Kosciusko County

 

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Indiana Clean Lakes Program Lake Report

Rothenberger

 

Kosciusko County

1994

         
Sample Location: Deep Hole
Sample Date: 1994-08-02
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
7.6
1.5
36
9
131
8.4
8.1
360
280
169
173
0.011
0.01
0.01
0.047
3.37
0.022
0.022
0.018
0.018
0.604
1.015
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
26.1
24.9
20.6
13.9
9.5
7.5
6.1
DO (mg/L)
9.9
8.4
10.6
11
0.3
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 46
 
Blue-Green Dominance (% of NU): 71
 
          Carlson TSI: 44
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 74714   Greens (#/L): 1847   Diatoms (#/L): 1847   Other Algae (#/L): 27094   Rotifers (#/L): 0   Zooplankton (#/L): 327
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-08-07
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
7.6
1.8
35
10
81.2
7.5
7.3
333.3
265.2
155
182
0.016
0.03
0.063
0.118
4.91
0.022
0.022
0.09
0.092
0.23
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)
28.1
24.7
23.9
23.4
21.7
16.9
12.6
10.3
8.8
DO (mg/L)
7.3
7.7
6.9
5.1
6.2
0.4
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 43
 
Blue-Green Dominance (% of NU): 91
 
          Carlson TSI: 54
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 34350   Greens (#/L): 494   Diatoms (#/L): 453   Other Algae (#/L): 2057   Rotifers (#/L): 206   Zooplankton (#/L): 11.2
 
 

2003

         
Sample Location: Deep Hole
Sample Date: 2003-08-04
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
7.92
1.8
24
10
29
7.6
7.1
311
288.4
147
221
0.012
0.24
0.029
0.22
3.77
0.013
0.013
0.018
2.428
0.689
4.006
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)
25.7
24.9
24.3
23.5
20.5
17.6
11.4
8.6
6.7
DO (mg/L)
6.8
5
2.4
2.7
7.5
0.3
0.1
0
0
                                                                           
% Water Column Oxic: 37.5
 
Blue-Green Dominance (% of NU): 84
 
          Carlson TSI: 50
                    Indiana TSI: 45
                                                                           
Blue-Greens (#/L): 85234   Greens (#/L): 460   Diatoms (#/L): 5374   Other Algae (#/L): 10181   Rotifers (#/L): 106   Zooplankton (#/L): 64.4
 
 

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
7.92
2.5
38.96
21.33
7.8
7.2
336
477
155
207
0.01
0.139
0.029
0.172
14.45
0.013
0.013
0.018
1.208
0.867
2.562
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)
24.37
24.34
23.91
20.84
17.21
12.53
7.98
6.63
DO (mg/L)
5.92
6.35
5.14
7
8.4
0.59
0.18
0.15
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 58.5
 
Blue-Green Dominance (% of cells): 8
          Carlson TSI: 58
                   
                                                                           
Blue-Greens (#/L): 7744   Greens (#/L): 1869   Diatoms (#/L): 267   Other Algae (#/L): 86249   Rotifers (#/L): 8   Zooplankton (#/L): 84
Blue-Greens (cells/L): 127   Greens (cells/L): 2   Diatoms (cells/L): 1   Other Algae (cells/L): 87   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)