Clean Lakes Program: Snow - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Snow

  

Steuben County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-12
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
1989
25
2.5
27
15
94
8.2
7.2
540
390
150
175
0.01
0.154
0.086
0.22
0.487
1.03
0.019
0.804
1.241
1.824
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
27
23
17.5
14
12.5
10.7
9.9
8.3
7.3
7
6.9
6.7
6.3
6.2
6.1
6.1
6
5.9
5.5
5.1
5
5
5
DO (mg/L)
7.5
7.5
7.4
4
1.1
1
2.1
1.7
1.8
2.3
2.9
2.7
2.6
2.4
2.1
2.1
2
1.9
1.8
1.7
0.7
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 84
  
Blue-Green Dominance (% of NU): 59
  
          Carlson TSI: 58
                    Indiana TSI: 30
                                                                           
Blue-Greens (#/L): 12300   Greens (#/L): 1301   Diatoms (#/L): 2956   Other Algae (#/L): 3903   Rotifers (#/L): 364   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-07-21
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
25
3.2
65
26
90.93
8.1
7.6
520
442
167
225
0.01
0.127
0.023
0.02
1.265
1.139
0.03
1.125
0.878
1.128
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)
22.8
22.8
22.8
22.8
22.5
22.5
21.5
17
13.8
11.5
9.7
8
7.2
7
6.8
6.5
6.3
6.2
6.1
6.1
6
6
5.9
5.7
DO (mg/L)
8
7.8
7.8
7.8
7.9
7.7
5.9
1.2
0.6
0.6
1.5
2.8
2.7
2.6
2.6
2.4
2.2
2.2
2.1
2
2
1.7
1.3
0.3
                                                                           
% Water Column Oxic: 88
  
Blue-Green Dominance (% of NU): 3
  
          Carlson TSI: 46
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 227   Greens (#/L): 1569   Diatoms (#/L): 2911   Other Algae (#/L): 3201   Rotifers (#/L): 415   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-08-12
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
25
3.1
43
23
88.6
8.3
7.61
480
410
174.4
209.2
0.01
0.111
0.015
0.13
4.03
0.023
0.341
0.018
0.351
0.7
1.1
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)
23.2
23.1
23
23
23
23
22.9
20.9
16.7
14
12.2
10.9
10
9
8.5
8.1
8
7.9
7.2
7
6.9
6.7
6.5
DO (mg/L)
7.4
7.6
7.6
7.55
7.3
7.2
6.8
1.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 40
  
Blue-Green Dominance (% of NU): 82
  
          Carlson TSI: 44
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 12181   Greens (#/L): 365   Diatoms (#/L): 1049   Other Algae (#/L): 1284   Rotifers (#/L): 56   Zooplankton (#/L): 11
 
 

2002

          
Sample Location: Deep Hole
Sample Date: 2002-07-02
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
2002
25
4.8
36
20
100
8.1
7.8
550
400
182
209
0.01
0.108
0.029
0.117
0.87
0.028
0.174
0.161
0.599
0.656
0.988
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
27.9
27.8
27
25.1
19.2
15.8
14.2
12.9
11.8
10.1
8.8
7.4
7
6.7
6.5
6.2
6.2
6
5.9
5.7
5.6
5.5
5.3
5.3
5.2
DO (mg/L)
7.9
7.9
7.8
7.8
7.2
6.8
5.8
5.8
5.9
5.8
4.8
5.2
4.9
4.4
4.6
4.8
4.6
4.7
4.8
4.9
4.8
4.3
3.5
2.3
0.3
0.3
0.26
                                                                           
% Water Column Oxic: 88
  
Blue-Green Dominance (% of NU): 91
  
          Carlson TSI: 40
                    Indiana TSI: 22
                                                                           
Blue-Greens (#/L): 22986   Greens (#/L): 379   Diatoms (#/L): 1151   Other Algae (#/L): 792   Rotifers (#/L): 47   Zooplankton (#/L): 14.9
 
 

2006

          
Sample Location: Site 1
Sample Date: 2006-07-17
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
2006
25
2
23
18
102.8
8.2
7.6
547
377.6
179
211
0.01
0.132
0.021
0.161
1.4
0.043
0.095
0.018
0.783
0.608
1.298
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
27.6
27.5
27.4
27
24
20.8
17.8
15.3
13.1
13.4
9.5
8
7.6
7.5
7.2
7
6.9
6.8
6.7
6.4
6.3
6.1
5.9
5.7
5.6
5.6
DO (mg/L)
8
8.1
8.1
8.2
7.9
6.3
3.1
1.2
0.4
0
0
1
1.9
1.9
2.1
1.4
1.4
1.5
1.9
1.8
2.2
0.8
0
0
0
0
0
                                                                           
% Water Column Oxic: 60
  
Blue-Green Dominance (% of NU): 82.4
  
          Carlson TSI: 44
                    Indiana TSI: 27
                                                                           
Blue-Greens (#/L): 7582   Greens (#/L): 725   Diatoms (#/L): 456   Other Algae (#/L): 394   Rotifers (#/L): 21   Zooplankton (#/L): 20.5
 
 

2006

          
Sample Location: Site 2
Sample Date: 2006-07-17
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
2006
15.9
1.9
26
16.4
107.1
8.3
7.6
525
392.8
171
208
0.01
0.013
0.021
0.054
1.76
0.043
0.043
0.018
1.016
0.737
1.379
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)
27.9
27.8
27.8
27.7
26.6
24.2
21.9
18.1
15.7
13.3
12.2
10.9
9.9
9.1
8.4
8
7.9
DO (mg/L)
8.5
8.4
8.4
8.4
8.1
1.4
3.1
1.8
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 40
  
Blue-Green Dominance (% of NU): 41.7
  
          Carlson TSI: 45
                    Indiana TSI: 11
                                                                           
Blue-Greens (#/L): 634   Greens (#/L): 224   Diatoms (#/L): 199   Other Algae (#/L): 323   Rotifers (#/L): 137   Zooplankton (#/L): 5.3
 
 

2006

          
Sample Location: Site 3
Sample Date: 2006-07-17
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
2006
11.9
2.1
20
19.7
99.2
8.2
7.6
504
420.8
164
210
0.01
0.01
0.018
0.036
1.55
0.041
0.042
0.013
0.578
0.524
1.215
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
28.2
28.2
28.1
26.1
23.3
19
15.3
13.3
12.1
11.1
9.9
DO (mg/L)
7.6
7.7
7.7
7.8
7.3
6.3
6.1
1.8
0
0
0
0
0
                                                                           
% Water Column Oxic: 54.5
  
Blue-Green Dominance (% of NU): 63.6
  
          Carlson TSI: 43
                    Indiana TSI: 18
                                                                           
Blue-Greens (#/L): 2483   Greens (#/L): 353   Diatoms (#/L): 479   Other Algae (#/L): 529   Rotifers (#/L): 50   Zooplankton (#/L): 9.6
 
 

2013

          
Sample Location: Deep Hole
Sample Date: 2013-06-24
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
2013
25
1.3
17.47
16.73
8.3
7.5
562
155
211.5
0.008
0.166
0.023
0.1925
6.48
0.036
0.018
0.018
0.726
0.361
1.025
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)
25.46
25.45
25.42
25.34
22.3
17.85
13.4
11.13
9.84
8.94
8.5
8.03
7.87
7.79
7.66
7.57
7.5
7.44
7.38
7.27
7.05
6.8
6.65
6.53
6.42
6.24
DO (mg/L)
8.25
8.02
8.14
8.17
7.11
5.96
5.38
5.21
5.97
5.82
5.58
5.62
5.66
5.48
5.51
5.42
5.35
4.85
4.82
4.76
4.66
4.25
2.99
1.04
0.35
0.24
                                                                           
% Water Column Oxic: 92
  
Blue-Green Dominance (% of NU): 58.3
  
Blue-Green Dominance (% of cells): 49
           Carlson TSI: 59
                   
                                                                           
Blue-Greens (#/L): 4474   Greens (#/L): 3955   Diatoms (#/L): 200   Other Algae (#/L): 320   Rotifers (#/L): 149   Zooplankton (#/L): 40
Blue-Greens (cells/L): 42   Greens (cells/L): 30   Diatoms (cells/L): 0   Other Algae (cells/L): 0   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2014

          
Sample Location: Deep Hole
Sample Date: 2014-06-23
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
2014
23.2
1.6
1
8.4
7.5
528
653
173
205
0.01
0.016
0.025
0.027
7.29
0.055
0.841
0.558
0.475
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)
25.8
25.8
25.4
25.1
24.1
20
16.65
13.5
11.8
10.8
8.9
7.8
6.6
6.1
6
5.7
5.5
5.4
5.2
5.1
5
4.9
4.7
DO (mg/L)
8.8
8.9
8.9
8.7
8.1
6.2
5.1
4.9
4.5
4.3
3.7
3.4
3.5
3.5
3.5
3.4
3.3
3.1
3.2
3.2
3.2
3.1
2.9
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 36.8
  
Blue-Green Dominance (% of cells): 8.4
           Carlson TSI: 51
                   
                                                                           
Blue-Greens (#/L): 1469   Greens (#/L): 12417   Diatoms (#/L): 1936   Other Algae (#/L): 1670   Rotifers (#/L): 29   Zooplankton (#/L): 22
Blue-Greens (cells/L): 56   Greens (cells/L): 90   Diatoms (cells/L): 2   Other Algae (cells/L): 4   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)