Clean Lakes Program: Long (Clear) - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Long (Clear)

  

Steuben County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-07-10
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
1989
9.1
1.3
55
14
102
7.3
6.6
295
220
123
161
0.01
0.086
0.086
0.169
0.438
0.498
0.021
1.389
1.256
2.617
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)
27.8
27
24.1
18.5
15.5
12.5
10
9.2
8.5
8.5
DO (mg/L)
8.2
8.1
7.5
0.5
0.2
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 50
  
Blue-Green Dominance (% of NU): 83
  
          Carlson TSI: 62
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 14404   Greens (#/L): 0   Diatoms (#/L): 1171   Other Algae (#/L): 567   Rotifers (#/L): 1170   Zooplankton (#/L): 0
 
 

1992

          
Sample Location: Deep Hole
Sample Date: 1992-08-24
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
1992
9.1
0.7
7
13.7
112.19
7.4
7
315
285
121
181
0.01
0.01
0.062
0.652
2.86
2.86
0.031
0.393
1.603
0.986
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
23.5
23.2
23.2
22.9
22
21
17
12.8
10.9
9.5
DO (mg/L)
8.4
8.2
8.2
8.1
7.5
5.8
2.1
4.3
0
0
0
                                                                           
% Water Column Oxic: 69
  
Blue-Green Dominance (% of NU): 10
  
          Carlson TSI: 65
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 18583   Greens (#/L): 8150   Diatoms (#/L): 147036   Other Algae (#/L): 14508   Rotifers (#/L): 2005   Zooplankton (#/L): 0
 
 

1997

          
Sample Location: Deep Hole
Sample Date: 1997-07-28
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
1997
9.1
1.9
32
14
96.4
8.29
7.32
313
270
124.1
165
0.01
0.206
0.04
0.24
6.08
0.032
0.029
0.018
1.079
0.8
1.7
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)
27.8
27.8
27.7
27.6
25
23
19.4
17.3
13.9
12
11.3
11
DO (mg/L)
7.5
7.6
7.6
7.6
5
0.1
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 36.4
  
Blue-Green Dominance (% of NU): 53
  
          Carlson TSI: 52
                    Indiana TSI: 28
                                                                           
Blue-Greens (#/L): 4607   Greens (#/L): 437   Diatoms (#/L): 2479   Other Algae (#/L): 1050   Rotifers (#/L): 117   Zooplankton (#/L): 20.9
 
 

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
9.8
2.4
46
15
106.5
8.2
7.65
325
265
115
142
0.01
0.066
0.054
0.102
1.9
0.013
0.013
0.174
0.612
0.714
1.02
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)
29.2
29.2
28.2
27.9
24.9
19.9
17.1
14.1
12.6
11.7
11.4
DO (mg/L)
8.1
8.2
8.3
8.2
9.4
8.1
0.9
0.3
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 43.8
  
Blue-Green Dominance (% of NU): 98
  
          Carlson TSI: 49
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 101488   Greens (#/L): 1038   Diatoms (#/L): 124   Other Algae (#/L): 766   Rotifers (#/L): 99   Zooplankton (#/L): 10.1
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-06-29
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
9.8
1.4
14.3
10.5
100
8.4
7.5
286
229.8
119
147
0.01
0.183
0.036
0.21
5.81
0.013
0.013
0.025
1.212
0.731
1.617
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)
26.1
26.1
26.1
25.9
25.3
21.6
17.8
14.7
11.7
9.9
9.4
DO (mg/L)
8.1
8.2
8.2
8
6.2
0.1
0
0
0
0
0
                                                                           
% Water Column Oxic: 30.61
  
Blue-Green Dominance (% of NU): 53.7
  
          Carlson TSI: 53
                    Indiana TSI: 37
                                                                           
Blue-Greens (#/L): 16944   Greens (#/L): 7856   Diatoms (#/L): 3992   Other Algae (#/L): 2548   Rotifers (#/L): 170   Zooplankton (#/L): 45.1
 
 

 

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)