Clean Lakes Program: Willow - Sullivan County

 

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Indiana Clean Lakes Program Lake Report

Willow

 

Sullivan County

1997

         
Sample Location: Deep Hole
Sample Date: 1997-07-01
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
1997
8.5
5.2
63
24
96.9
8.02
6.82
1780
2810
201.5
332
0.01
0.01
0.01
0.039
1.13
0.022
0.022
0.018
2.071
0.364
2.481
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)
27.6
27.2
27
26.8
24.1
21.2
17.1
13.5
13.1
DO (mg/L)
7.65
7.62
7.72
7.93
6.99
5.3
2.31
0.55
0.61
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 53
 
          Carlson TSI: 35
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 1071   Greens (#/L): 0   Diatoms (#/L): 12   Other Algae (#/L): 844   Rotifers (#/L): 74   Zooplankton (#/L): 30.9
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-07-24
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
8.5
3.4
69
14
76.5
8.35
6.9
1580
2570
66
311
0.01
1.349
0.012
1.656
1.16
0.013
0.013
0.018
3.074
0.322
3.38
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
29.4
29.3
29.1
27.6
23.4
17.9
14.6
13.7
13.1
DO (mg/L)
5.6
5.9
5.8
5.7
8.7
7.9
0.2
0.16
0.14
0.1
                                                                           
% Water Column Oxic: 50
 
Blue-Green Dominance (% of NU): 32
 
          Carlson TSI: 38
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 7427   Greens (#/L): 45   Diatoms (#/L): 23   Other Algae (#/L): 15398   Rotifers (#/L): 91   Zooplankton (#/L): 76.5
 
 

2008

         
Sample Location: Deep Hole
Sample Date: 2008-07-28
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
9
3.5
33.5
12.5
103.6
8
7
1550
3370
96
454
0.01
0.975
0.01
0.01
1.92
0.032
0.052
0.018
0.031
0.458
6.512
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
27.5
27.4
27.3
26.5
21.5
15.8
13.9
12.9
12
DO (mg/L)
7.9
7.9
7.9
7.9
12.7
2.6
1.1
0.8
0.6
0.5
                                                                           
% Water Column Oxic: 55.5
 
Blue-Green Dominance (% of NU): 13.2
 
          Carlson TSI: 39
                    Indiana TSI: 17
                                                                           
Blue-Greens (#/L): 3707   Greens (#/L): 46   Diatoms (#/L): 116   Other Algae (#/L): 23676   Rotifers (#/L): 510   Zooplankton (#/L): 9.2
 
 

2013

         
Sample Location: Deep Hole
Sample Date: 2013-07-10
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
2013
9
2.3
19.6
7.4
7.9
7.2
1374
3760
90
604
0
1.324
0.035
0.9995
4.59
0.023
0.013
0.02
12.973
0.24
2.421
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)
27.51
27.21
25.8
23.94
21.22
17.25
14.55
10.86
10.08
DO (mg/L)
8
8.06
8.51
8.6
7.14
0.49
0.31
0.2
0.21
                                                                           
% Water Column Oxic: 44.44
 
Blue-Green Dominance (% of NU): 82.1
 
Blue-Green Dominance (% of cells): 6.1
          Carlson TSI: 63
                   
                                                                           
Blue-Greens (#/L): 5847   Greens (#/L): 7518   Diatoms (#/L): 278   Other Algae (#/L): 81023   Rotifers (#/L): 1145   Zooplankton (#/L): 722
Blue-Greens (cells/L): 775   Greens (cells/L): 9   Diatoms (cells/L): 0   Other Algae (cells/L): 158   Rotifers (cells/L): 1   Zooplankton (cells/L): 1
 
 

2015

         
Sample Location: deep hole
Sample Date: 2015-07-22
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
2015
9.75
3.5
28.98
13.12
7.4
7.1
1446
3640
96.5
553
0.01
0.016
0.504
0.023
0.019
0.018
9.53
0.452
11.121
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)
28.93
28.39
27.52
25.34
18.93
14.97
13
10.97
10.01
9.72
DO (mg/L)
8.83
8.7
8.68
1.21
0.85
0.35
0.26
0.27
0.22
0.18
                                                                           
% Water Column Oxic: 30.76
 
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 0
                   
                                                                           
Blue-Greens (#/L):   Greens (#/L):   Diatoms (#/L):   Other Algae (#/L):   Rotifers (#/L):   Zooplankton (#/L):
Blue-Greens (cells/L):   Greens (cells/L):   Diatoms (cells/L):   Other Algae (cells/L):   Rotifers (cells/L):   Zooplankton (cells/L):
 
 

 

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)