Clean Lakes Program: Oak - Clark County

 

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Indiana Clean Lakes Program Lake Report

Oak

  

Clark County

1996

          
Sample Location: Deep Hole
Sample Date: 1996-07-22
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
4
2
29
9
60.2
6.83
6.85
79
91
20.2
34.4
0.01
0.01
0.033
0.093
0.52
0.022
0.022
0.018
0.018
0.289
0.801
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
27
26.9
25.2
17
11
DO (mg/L)
5.2
4.9
4.8
0.45
0.6
0.1
                                                                           
% Water Column Oxic: 75
  
Blue-Green Dominance (% of NU): 28
  
          Carlson TSI: 43
                    Indiana TSI: 10
                                                                           
Blue-Greens (#/L): 1426   Greens (#/L): 0   Diatoms (#/L): 0   Other Algae (#/L): 3538   Rotifers (#/L): 0   Zooplankton (#/L): 115
 
 

2001

          
Sample Location: Deep Hole
Sample Date: 2001-08-06
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
4
2.6
43
10
52.4
6.95
6.6
112
121
23
28
0.01
0.01
0.026
0.053
0.41
0.013
0.013
0.022
0.018
0.686
0.887
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)
30.9
29.4
29.1
28.7
25.9
19.3
DO (mg/L)
4.9
4.7
4.1
2.9
0.4
0.2
                                                                           
% Water Column Oxic: 50
  
Blue-Green Dominance (% of NU): 0
  
          Carlson TSI: 40
                    Indiana TSI: 18
                                                                           
Blue-Greens (#/L): 59   Greens (#/L): 118   Diatoms (#/L): 30   Other Algae (#/L): 73475   Rotifers (#/L): 59   Zooplankton (#/L): 38.4
 
 

 

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)