Clean Lakes Program: Island - Sullivan County

 

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Indiana Clean Lakes Program Lake Report

Island

  

Sullivan County

1996

          
Sample Location: Deep Hole
Sample Date: 1996-08-26
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
1996
24.1
1.4
37
23
103.4
8.12
6.99
3050
3075
267.3
564.2
0.01
0.01
0.018
0.019
2.84
0.022
0.022
0.044
1.98
0.256
2.324
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
28
28
27.8
27.5
25
21.2
17.5
15.2
13.8
12.2
11.5
10.8
10.2
10
9.3
8.8
8.5
8.2
8
7.8
7.5
7.5
7.5
7.5
7.5
DO (mg/L)
8.1
8.1
8.1
8.2
8
4.5
5.1
3
3.6
4
4.8
4.5
4.5
4.1
4.2
4
3.2
2.8
2.2
1.7
1.1
0.5
0.2
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 50
  
          Carlson TSI: 47
                    Indiana TSI: 13
                                                                           
Blue-Greens (#/L): 266   Greens (#/L): 0   Diatoms (#/L): 14   Other Algae (#/L): 238   Rotifers (#/L): 7   Zooplankton (#/L): 5
 
 

1999

          
Sample Location: Deep Hole
Sample Date: 1999-08-10
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
1999
24.1
1.5
39
21
106.5
8.1
7.1
3040
2377
278
473
0.015
0.015
0.026
0.029
2.02
0.022
0.062
0.018
0.018
0.529
0.533
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
27.7
27.6
27.5
27.4
27
22.8
17.7
14.9
13.2
11.7
10.9
10.3
10.2
10.1
9.3
8.8
8.8
DO (mg/L)
8.42
8.42
8.34
8.13
8.13
7.88
6.89
6.46
7.1
6.36
6.34
6.26
5.94
5.2
5.12
4.26
2.2
0.7
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 50
  
          Carlson TSI: 47
                    Indiana TSI: 10
                                                                           
Blue-Greens (#/L): 50   Greens (#/L): 0   Diatoms (#/L): 14   Other Algae (#/L): 27   Rotifers (#/L): 5   Zooplankton (#/L): 5.3
 
 

2008

          
Sample Location: Deep Hole
Sample Date: 2008-08-19
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
2008
20.12
7.2
33
32.81
102
8.2
7.1
226
360
311.5
781
0.01
0.181
0.01
0.01
0.9
0.015
0.013
0.083
5.411
0.234
5.122
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)
27.05
27.05
27.04
27.04
27.04
27.03
25.55
19.04
15.35
12.77
10.98
10.48
10.17
10.18
9.73
9.34
9.05
8.59
8.32
8.21
8.17
8.17
DO (mg/L)
7.96
7.72
7.9
7.96
7.92
8.08
7.59
14.07
14.68
12.08
10.16
6.88
4.84
3.66
0.9
0.45
0.41
0.4
0.37
0.37
0.36
0.36
                                                                           
% Water Column Oxic: 59.6
  
Blue-Green Dominance (% of NU): 46.5
  
          Carlson TSI: 33
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 255   Greens (#/L): 33   Diatoms (#/L): 6   Other Algae (#/L): 200   Rotifers (#/L): 50   Zooplankton (#/L): 5.1
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-08-18
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
2009
20.73
6.3
29.68
36
99.8
8
6.9
2345
2251
299
725.8
0.01
0.19
0.01
0.166
0.13
0.013
0.022
0.022
5.06
0.281
4.81
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)
29.4
29.4
29.4
29.1
28.9
28.8
27.1
23.3
19.1
16.1
13.9
12.7
11.2
10.8
10.5
10.1
9.6
9.1
8.8
8.6
8.5
8.5
DO (mg/L)
7.6
7.6
7.6
7.6
7.6
7.6
10
14.5
13.2
12.5
10.7
7.5
5.1
4
2.6
0.75
0.04
0
0
0
0
0
                                                                           
% Water Column Oxic: 62.71
  
Blue-Green Dominance (% of NU): 26.7
  
          Carlson TSI: 27
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 170   Greens (#/L): 49   Diatoms (#/L): 12   Other Algae (#/L): 333   Rotifers (#/L): 49   Zooplankton (#/L): 25.7
 
 

 

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)