Clean Lakes Program: Bonar - Kosciusko County

 

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Indiana Clean Lakes Program Lake Report

Bonar

  

Kosciusko County

1991

          
Sample Location: Deep Hole
Sample Date: 1991-07-01
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
1991
18.3
2.9
22.4
16
99.7
8.1
7.3
350
370
142.8
165.9
0.01
0.01
0.025
0.028
0.105
0.174
0.076
0.233
1.116
1.224
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
28
24
18.7
16.2
13.8
DO (mg/L)
7.8
7.8
4
0.9
0.7
0.1
                                                                           
% Water Column Oxic: 83
  
Blue-Green Dominance (% of NU): 45
  
          Carlson TSI: 48
                    Indiana TSI: 8
                                                                           
Blue-Greens (#/L): 1514   Greens (#/L): 88   Diatoms (#/L): 198   Other Algae (#/L): 1382   Rotifers (#/L):   Zooplankton (#/L): 184
 
 

1994

          
Sample Location: Deep Hole
Sample Date: 1994-08-01
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
1994
18.3
3.2
53
18
100
8.4
7.7
322
320
135
157
0.01
0.01
0.01
0.036
0.77
0.022
0.022
0.018
0.018
0.582
0.613
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
28
28
27.1
26.3
25.2
21.1
17.6
DO (mg/L)
7.8
7.8
7.8
7.9
5.8
2.9
0.6
0.1
                                                                           
% Water Column Oxic: 90
  
Blue-Green Dominance (% of NU): 60
  
          Carlson TSI: 36
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 12553   Greens (#/L): 264   Diatoms (#/L): 3402   Other Algae (#/L): 4483   Rotifers (#/L): 0   Zooplankton (#/L): 319
 
 

 

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)