Clean Lakes Program: Ogle - Brown County

 

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Indiana Clean Lakes Program Lake Report

Ogle

 

Brown County

1992

         
Sample Location: Deep Hole
Sample Date: 1992-08-05
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
1992
8.2
3.5
47
13.78
107.9
7.7
6.5
147
135
28
32.5
0.01
0.01
0.042
0.122
0.135
0.129
0.023
0.018
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)
26.5
26.2
25.1
24.7
23.9
19.7
15.5
11
9.7
8.5
DO (mg/L)
8.8
9.1
8.7
8.7
12.4
2
0.2
0.1
0
0
                                                                           
% Water Column Oxic: 70.3
 
Blue-Green Dominance (% of NU): 84
 
          Carlson TSI: 50
                    Indiana TSI: 21
                                                                           
Blue-Greens (#/L): 23528   Greens (#/L): 0   Diatoms (#/L): 64   Other Algae (#/L): 4272   Rotifers (#/L): 111   Zooplankton (#/L): 0
 
 

1996

         
Sample Location: Deep Hole
Sample Date: 1996-08-20
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
1996
8.2
3.4
24.4
14.76
88.4
7.71
6.58
25.5
33.8
0.01
0.01
0.027
0.07
0.39
0.048
0.046
0.018
0.018
0.421
0.711
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)
31
29.2
29
29
26
19
13.8
11.8
11.2
DO (mg/L)
7.1
6.8
6.8
6.8
7.5
4.9
1.3
0.7
0.7
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 91
 
          Carlson TSI: 38
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 6782   Greens (#/L): 70   Diatoms (#/L): 70   Other Algae (#/L): 174   Rotifers (#/L): 313   Zooplankton (#/L): 22
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-07-18
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
8.2
5.4
48
13.5
105
8.2
8.2
144
120
22
23
0.01
0.01
0.01
0.192
2.6
0.013
0.013
0.018
0.717
0.277
0.368
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)
28.3
28.3
28
27.5
26.6
20.9
15.2
10.9
9
8.3
DO (mg/L)
8.1
8
8.2
8.3
8.6
10.9
5
0.5
0.4
0.3
                                                                           
% Water Column Oxic: 63
 
Blue-Green Dominance (% of NU): 99
 
          Carlson TSI: 38
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 51170   Greens (#/L): 157   Diatoms (#/L): 94   Other Algae (#/L): 94   Rotifers (#/L): 94   Zooplankton (#/L): 50.6
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-07-17
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
2012
6
2.85
28.8
9.84
48.7
6.5
6.3
100
100
26
27
0.01
0.011
0.014
0.02
3.97
0.022
0.021
0.019
0.114
0.654
0.664
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)
31.3
30.3
29.8
29.7
28.8
23.5
17.6
12.8
11.3
9.1
DO (mg/L)
3.4
3.64
3.52
3.6
3.71
4.26
5.06
2.82
1.34
0.16
                                                                           
% Water Column Oxic: 87.5
 
Blue-Green Dominance (% of NU): 90.4
 
Blue-Green Dominance (% of cells): 51.7
          Carlson TSI: 45
                   
                                                                           
Blue-Greens (#/L): 53604   Greens (#/L): 27065   Diatoms (#/L): 22291   Other Algae (#/L):   Rotifers (#/L): 585   Zooplankton (#/L): 125
Blue-Greens (cells/L): 767   Greens (cells/L): 58   Diatoms (cells/L): 23   Other Algae (cells/L):   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)