Clean Lakes Program: Engle - Noble County

 

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Indiana Clean Lakes Program Lake Report

Engle

  

Noble County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-08-08
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
7.6
2.9
55
15.3
88
8
7.5
580
480
217
260
0.011
0.015
0.047
0.059
6.594
13.644
0.056
1.576
1.161
3.021
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
24
23.5
21
16
13
11
DO (mg/L)
7.5
7.3
7.3
1
1.8
0.2
0.2
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 72
  
          Carlson TSI: 53
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 2260   Greens (#/L): 104   Diatoms (#/L): 373   Other Algae (#/L): 311   Rotifers (#/L): 84   Zooplankton (#/L): 0
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-08-16
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
1993
7.6
3
33
17
100
8.1
7.4
550
550
169.5
258.5
0.01
0.01
0.01
0.053
1.93
0.029
0.022
0.018
1.261
1.103
1.244
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
26
26
23.5
23
21
16.5
14
12
10.5
DO (mg/L)
8.4
8.5
8.4
7.9
7.9
4.9
0.7
0.1
0
0
                                                                           
% Water Column Oxic: 56.8
  
Blue-Green Dominance (% of NU): 38
  
          Carlson TSI: 39
                    Indiana TSI: 13
                                                                           
Blue-Greens (#/L): 1154   Greens (#/L): 79   Diatoms (#/L): 1063   Other Algae (#/L): 645   Rotifers (#/L): 96   Zooplankton (#/L): 0
 
 

2000

          
Sample Location: Deep Hole
Sample Date: 2000-07-31
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
2000
7.6
1.9
45
14
97
8.4
7.7
565
507
146
195
0.016
0.016
0.026
0.028
1.89
0.183
0.037
0.023
0.415
0.953
1.454
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)
26.7
26.6
26.2
26
25.2
23.7
20.2
16
13.4
DO (mg/L)
7.8
7.8
7.7
7.7
7.3
6.4
1.7
0.5
0.18
                                                                           
% Water Column Oxic: 86
  
Blue-Green Dominance (% of NU): 65
  
          Carlson TSI: 46
                    Indiana TSI: 17
                                                                           
Blue-Greens (#/L): 2592   Greens (#/L): 16   Diatoms (#/L): 713   Other Algae (#/L): 470   Rotifers (#/L): 178   Zooplankton (#/L): 25.8
 
 

2003

          
Sample Location: Deep Hole
Sample Date: 2003-07-28
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
2003
7.62
2.1
38
17
108.7
8.4
7.6
539
506
151
205
0.01
0.01
0.032
0.067
3.84
0.181
0.013
0.058
0.422
1.574
1.351
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)
24.7
24.6
24.6
24.5
24.4
23.1
19.1
15.2
DO (mg/L)
8.94
9.28
9.35
9.41
8.32
5.33
0.64
0.16
                                                                           
% Water Column Oxic: 52.5
  
Blue-Green Dominance (% of NU): 89
  
          Carlson TSI: 49
                    Indiana TSI: 25
                                                                           
Blue-Greens (#/L): 42670   Greens (#/L): 50   Diatoms (#/L): 1377   Other Algae (#/L): 3255   Rotifers (#/L): 676   Zooplankton (#/L): 54.5
 
 

2010

          
Sample Location: Deep Hole
Sample Date: 2010-07-20
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
2010
7.6
2.7
16.1
15
89
8.4
7.6
575
465
215
247
0.01
0.01
0.01
0.074
1.51
0.013
0.013
0.055
0.416
0.82
1.813
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)
28.2
28.2
28.2
28.2
24.9
19.6
15
12.2
10.5
DO (mg/L)
7.8
7.8
7.7
7.7
8.9
3
0.8
0
0
                                                                           
% Water Column Oxic: 53
  
Blue-Green Dominance (% of NU): 71
  
Blue-Green Dominance (% of cells): 33
           Carlson TSI: 39
                    Indiana TSI: 31
                                                                           
Blue-Greens (#/L): 103689   Greens (#/L): 128347   Diatoms (#/L): 17071   Other Algae (#/L): 63857   Rotifers (#/L): 1265   Zooplankton (#/L): 25.4
Blue-Greens (cells/L): 1890   Greens (cells/L): 595   Diatoms (cells/L): 112   Other Algae (cells/L): 64   Rotifers (cells/L): 1   Zooplankton (cells/L): 0
 
 

2013

          
Sample Location: Deep Hole
Sample Date: 2013-07-09
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
7.92
2.5
12.95
14.8
8.3
7.6
677
730
199
204
0.003
0.003
0.01
0.01
5
0.946
0.522
0.126
0.709
0.486
1.346
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)
25.64
25.63
24.43
21.85
18.02
14.65
12.5
11.45
DO (mg/L)
8.22
8.17
7.87
4.64
2.57
0.17
0.16
0.15
                                                                           
% Water Column Oxic: 50.51
  
Blue-Green Dominance (% of NU): 85
  
Blue-Green Dominance (% of cells): 45.2
           Carlson TSI: 43
                   
                                                                           
Blue-Greens (#/L): 32854   Greens (#/L): 24224   Diatoms (#/L): 2505   Other Algae (#/L): 11972   Rotifers (#/L): 649   Zooplankton (#/L): 450
Blue-Greens (cells/L): 1138   Greens (cells/L): 185   Diatoms (cells/L): 4   Other Algae (cells/L): 12   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)