Clean Lakes Program: Failing - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Failing

  

Steuben County

1992

          
Sample Location: Deep Hole
Sample Date: 1992-08-04
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
14.6
4.6
54
25
98.1
8.05
7.4
660
590
160
208
0.01
0.124
0.041
0.093
0.665
0.659
0.036
1.19
0.386
0.23
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
22.7
22.5
22.5
22.5
21.1
16.6
11.8
9
7.2
6
5.1
5.1
4.9
4.9
4.9
DO (mg/L)
8.2
8.2
8.3
8.2
8.1
10.2
16.4
12.2
10.4
5.6
0.3
0.2
0.2
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 64.3
  
Blue-Green Dominance (% of NU): 76
  
          Carlson TSI: 48
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 3329   Greens (#/L): 534   Diatoms (#/L): 25   Other Algae (#/L): 407   Rotifers (#/L): 101   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-08-18
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
1997
14.6
3.4
47
23
96.6
8.23
7.51
610
490
176
229
0.01
0.141
0.18
0.18
2.37
0.022
0.022
0.018
1.108
0.6
1.6
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)
24
23.9
23.9
23.5
23.2
22.9
19
14.1
11
8.9
7.2
6.5
6
5.9
5.8
5.8
DO (mg/L)
8.02
8.1
8.15
8.2
8.21
7.5
8.3
7.02
5.3
0.92
0.21
0
0
0
0
0
                                                                           
% Water Column Oxic: 71.4
  
Blue-Green Dominance (% of NU): 81
  
          Carlson TSI: 53
                    Indiana TSI: 23
                                                                           
Blue-Greens (#/L): 740   Greens (#/L): 31   Diatoms (#/L): 57   Other Algae (#/L): 52   Rotifers (#/L): 21   Zooplankton (#/L): 13
 
 

2015

          
Sample Location: deep hole
Sample Date: 2015-07-20
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
12
2.5
17.29
16.4
8.1
7.5
798
975
173
215
0.01
0.027
0.016
0.029
3.32
0.079
0.018
0.018
0.39
0.753
1.129
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)
26.56
26.38
24.9
23.18
16.85
12.27
8.77
6.65
5.19
4.61
4.55
DO (mg/L)
8.5
8.61
9.06
9.41
15.95
11.33
4.59
1.72
0.8
0.5
0.38
                                                                           
% Water Column Oxic: 58.33
  
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 46
                   
                                                                           
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)