Clean Lakes Program: Hunter - Elkhart County

 

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Indiana Clean Lakes Program Lake Report

Hunter

  

Elkhart County

1989

          
Sample Location: Deep Hole
Sample Date: 1989-08-01
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
1989
8.8
2.9
61
22
104
8.6
7.65
1000
850
142
181
0.01
0.01
0.056
0.076
0.421
0.472
0.025
0.288
0.834
1.287
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)
24.8
24.3
24
23.5
22
19
15.9
13.5
DO (mg/L)
8.6
8.6
8.5
8.1
5.7
0.6
0.6
0.1
                                                                           
% Water Column Oxic: 87.5
  
Blue-Green Dominance (% of NU): 14
  
          Carlson TSI: 54
                    Indiana TSI: 10
                                                                           
Blue-Greens (#/L): 299   Greens (#/L): 320   Diatoms (#/L): 364   Other Algae (#/L): 917   Rotifers (#/L): 214   Zooplankton (#/L): 0
 
 

1993

          
Sample Location: Deep Hole
Sample Date: 1993-07-12
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
1993
8.8
2.7
53
23
98
8.2
7.6
350
340
131
153
0.01
0.01
0.027
0.019
1.74
0.029
0.025
0.024
1.479
0.358
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)
27
27
27
26.5
25
22
19.5
18
16.5
DO (mg/L)
8
7.9
8.1
8.5
9.9
9
3.9
0.1
0.2
                                                                           
% Water Column Oxic: 85.7
  
Blue-Green Dominance (% of NU): 61
  
          Carlson TSI: 45
                    Indiana TSI: 16
                                                                           
Blue-Greens (#/L): 2443   Greens (#/L): 114   Diatoms (#/L): 786   Other Algae (#/L): 600   Rotifers (#/L): 46   Zooplankton (#/L): 0
 
 

2003

          
Sample Location: Deep Hole
Sample Date: 2003-07-14
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
8.23
3.5
52
20
113
8.7
7.7
363.2
333.2
136
163
0.01
0.01
0.045
0.01
0.42
0.013
0.013
0.018
0.285
0.944
1.675
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)
26.5
26.5
26.5
26.5
25.2
24.2
21.9
19.1
16.6
DO (mg/L)
9.3
9.1
9
9
9.7
8.9
11.4
2.3
0.1
                                                                           
% Water Column Oxic: 73.1
  
Blue-Green Dominance (% of NU): 49
  
          Carlson TSI: 41
                    Indiana TSI: 6
                                                                           
Blue-Greens (#/L): 1236   Greens (#/L): 10   Diatoms (#/L): 40   Other Algae (#/L): 1128   Rotifers (#/L): 79   Zooplankton (#/L): 19.7
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-07-14
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
8.23
2.7
17.48
17
101.6
8.4
7.6
378.1
344.6
138
164
0.01
0.01
0.014
0.018
2.56
0.016
0.019
0.039
0.499
0.592
0.896
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)
24.1
24.3
24.4
24.4
24.4
23.7
21.2
18
15
13.2
DO (mg/L)
7.4
8.2
8.4
8.4
8.4
7.6
8.3
1.4
0.06
0.03
                                                                           
% Water Column Oxic: 60.75
  
Blue-Green Dominance (% of NU): 66.3
  
          Carlson TSI: 43
                    Indiana TSI: 18
                                                                           
Blue-Greens (#/L): 4097   Greens (#/L): 471   Diatoms (#/L): 330   Other Algae (#/L): 235   Rotifers (#/L): 1020   Zooplankton (#/L): 28.4
 
 

2014

          
Sample Location: Deep Hole
Sample Date: 2014-08-04
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
2014
8.23
3.05
8.6
8
404
478
128
148
0.01
0.01
0.023
0.023
1.43
0.013
0.013
0.033
0.068
1.043
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)
26.4
26
25.5
24.8
23.9
22.1
19.8
16.6
14.3
DO (mg/L)
9.03
8.88
8.98
9.04
8.33
5.22
1.44
0.23
0.11
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 93.9
  
Blue-Green Dominance (% of cells): 63.5
           Carlson TSI: 42
                   
                                                                           
Blue-Greens (#/L): 17492   Greens (#/L): 5476   Diatoms (#/L): 2804   Other Algae (#/L): 1604   Rotifers (#/L): 109   Zooplankton (#/L): 50
Blue-Greens (cells/L): 293   Greens (cells/L): 16   Diatoms (cells/L): 2   Other Algae (cells/L): 1   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)