Clean Lakes Program: Long - Porter County

 

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Indiana Clean Lakes Program Lake Report

Long

 

Porter County

1989

         
Sample Location: Deep Hole
Sample Date: 1989-08-21
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
7.3
1.3
20
8
100
8.4
7
220
220
72
100
0.01
0.073
0.027
0.106
1.141
1.083
0.037
0.161
1.274
1.125
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
23
21.7
18.6
13.9
11.2
10
9
DO (mg/L)
9.6
7.3
0.7
0.2
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 50
 
Blue-Green Dominance (% of NU): 91
 
          Carlson TSI: 54
                    Indiana TSI: 35
                                                                           
Blue-Greens (#/L): 6561   Greens (#/L): 404   Diatoms (#/L): 0   Other Algae (#/L): 86   Rotifers (#/L): 156   Zooplankton (#/L): 0
 
 

1995

         
Sample Location: Deep Hole
Sample Date: 1995-07-11
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
1995
7.3
1.7
35
4.3
104.1
8
7.05
225
182
61
83.5
0.01
0.098
0.031
0.13
10.56
0.022
0.022
0.006
0.541
0.78
1.333
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)
27.2
26.2
25.2
24.8
23.8
22
16.2
13
11.2
DO (mg/L)
8.6
9.2
8.6
7.6
2.4
0.2
0
0
0
                                                                           
% Water Column Oxic: 67
 
Blue-Green Dominance (% of NU): 79
 
          Carlson TSI: 53
                    Indiana TSI: 31
                                                                           
Blue-Greens (#/L): 49234   Greens (#/L): 602   Diatoms (#/L): 6919   Other Algae (#/L): 5114   Rotifers (#/L): 0   Zooplankton (#/L): 166.6
 
 

1999

         
Sample Location: Deep Hole
Sample Date: 1999-07-20
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
1999
7.3
3.2
25
15
93
7.5
6.8
240
210
61
82.5
0.014
0.014
0.044
0.103
4.84
0.022
0.022
0.018
0.018
0.697
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)
25
25
25
24
24
21
13
9
7
DO (mg/L)
7.9
7.9
7.7
7.5
5.6
0.4
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 57
 
Blue-Green Dominance (% of NU): 57
 
          Carlson TSI: 49
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 1271   Greens (#/L): 247   Diatoms (#/L): 272   Other Algae (#/L): 321   Rotifers (#/L): 62   Zooplankton (#/L): 68.3
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-08-16
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
2001
7.3
2.8
17
13
75
7.45
6.8
210
250
65
95
0.01
0.048
0.034
0.087
0.85
0.031
0.032
0.018
0.346
0.74
1.349
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
25.1
25.1
25.1
25.1
24.7
18.4
14
11.4
9.8
DO (mg/L)
6.1
6.1
6.1
6.1
6.1
4.5
0.7
0.6
0.6
0.5
                                                                           
% Water Column Oxic: 50
 
Blue-Green Dominance (% of NU): 46
 
          Carlson TSI: 43
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 1518   Greens (#/L): 152   Diatoms (#/L): 702   Other Algae (#/L): 721   Rotifers (#/L): 184   Zooplankton (#/L): 35.4
 
 

2005

         
Sample Location: Deep Hole
Sample Date: 2005-06-28
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
2005
8.2
1.8
11
12.1
97.1
8
7.9
234.7
171.5
64.5
78
0.01
0.036
0.028
0.071
1.28
0.013
0.013
0.018
0.382
0.613
1.094
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)
29.5
29.4
29.4
29.3
22.6
19.2
13.9
11.5
9.7
8.7
DO (mg/L)
7.2
7.4
7.4
7.3
6.5
1.2
0
0
0
0
                                                                           
% Water Column Oxic: 48.8
 
Blue-Green Dominance (% of NU): 69.3
 
          Carlson TSI: 46
                    Indiana TSI: 41
                                                                           
Blue-Greens (#/L): 106374   Greens (#/L): 50   Diatoms (#/L): 44386   Other Algae (#/L): 2572   Rotifers (#/L): 0   Zooplankton (#/L): 19.4
 
 

2015

         
Sample Location: deep hole
Sample Date: 2015-07-13
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
8.6
2.1
20.22
13.776
7.5
7
182
262
54
71
0.01
0.01
0.026
0.032
5.44
0.126
0.013
0.018
0.45
0.609
1.44
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)
24.87
24.78
24.58
23.01
19.66
14.86
12.05
9.52
8.65
DO (mg/L)
9.48
9.3
9.28
3.9
2.5
0.56
0.39
0.27
0.25
                                                                           
% Water Column Oxic: 46.51
 
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 50
                   
                                                                           
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)