Clean Lakes Program: Hartz - Starke County

 

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Indiana Clean Lakes Program Lake Report

Hartz

  

Starke County

1991

          
Sample Location: Deep Hole
Sample Date: 1991-08-20
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
1991
12.2
3.9
36
16
77.2
7.3
6.8
252
220
109.2
131.2
0.01
0.018
0.016
0.127
0.282
0.205
0.026
2.143
1.816
4.549
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
23.5
23.5
22
17
13
9.5
8.5
8
DO (mg/L)
6.6
6.6
6.5
6.4
6.5
3.2
2.3
0.9
0.2
0.1
0.1
                                                                           
% Water Column Oxic: 77
  
Blue-Green Dominance (% of NU): 91
  
          Carlson TSI: 42
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 13604   Greens (#/L): 444   Diatoms (#/L): 148   Other Algae (#/L): 677   Rotifers (#/L):   Zooplankton (#/L): 47
 
 

1995

          
Sample Location: Deep Hole
Sample Date: 1995-08-07
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
1995
9.4
2.9
31
16
92.3
7.9
7.05
258
218
101
127.5
0.015
0.038
0.026
0.166
0.02
0.022
0.022
0.018
1.603
0.904
3.186
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)
29.25
29.2
29
28.5
26.5
21.6
16.5
12
12
8.7
8.2
DO (mg/L)
7.2
7.2
7.1
5.7
4.3
2.75
2.2
1.3
0.3
0.1
0.1
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 84
  
          Carlson TSI: 29
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 10428   Greens (#/L): 324   Diatoms (#/L): 555   Other Algae (#/L): 1003   Rotifers (#/L): 31   Zooplankton (#/L): 13.3
 
 

1998

          
Sample Location: Deep Hole
Sample Date: 1998-08-11
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
1998
9.4
2.9
55
16.5
89
7.59
7
240.6
178.9
110.6
118.5
0.01
0.015
0.015
0.096
6.37
0.022
0.022
0.018
1.601
0.697
2.674
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)
26.9
26.6
26.2
26.1
24.8
20.2
14.9
10.4
8
7
6.6
DO (mg/L)
7.25
7.17
7.12
6.89
2.88
4.3
0.68
0.02
0.01
0
0
                                                                           
% Water Column Oxic: 66
  
Blue-Green Dominance (% of NU): 41
  
          Carlson TSI: 46
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 4917   Greens (#/L): 4043   Diatoms (#/L): 2164   Other Algae (#/L): 612   Rotifers (#/L): 153   Zooplankton (#/L): 49.2
 
 

2004

          
Sample Location: Deep Hole
Sample Date: 2004-08-16
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
2004
9.44
1.9
44
12.6
107
8.3
7
208
170
93
109
0.01
0.01
0.03
0.067
10.8
0.013
0.013
0.024
1.509
1.175
2.538
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)
23.4
22.7
22.1
21.8
21.7
19.1
15.8
13.3
10.7
8.4
7.5
DO (mg/L)
9
9.1
9.1
9.1
7.8
2.6
0.1
0
0
0
0
                                                                           
% Water Column Oxic: 44
  
Blue-Green Dominance (% of NU): 69.4
  
          Carlson TSI: 53
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 5755   Greens (#/L): 48   Diatoms (#/L): 0   Other Algae (#/L): 2437   Rotifers (#/L): 36   Zooplankton (#/L): 20.5
 
 

2015

          
Sample Location: Deep Hole
Sample Date: 2015-07-14
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
2015
10.1
1.3
4.17
6.56
7.4
7.1
202
262
86
107
0.01
0.183
0.029
0.245
10.02
0.013
0.013
0.018
1.616
0.968
3.144
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)
25.7
25.7
22.6
18
13
9.1
7.5
6.6
6.2
6.1
DO (mg/L)
8.92
7.65
5.35
0.56
0.84
0.28
0.21
0.2
0.17
0.17
                                                                           
% Water Column Oxic: 29.7
  
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 61
                   
                                                                           
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)