Clean Lakes Program: Long (Pleasant) - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Long (Pleasant)

 

Steuben County

1989

         
Sample Location: Deep Hole
Sample Date: 1989-07-18
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
9.8
0.7
10
5
101
8.4
7.3
740
590
204
245
0.01
0.361
0.061
0.373
2.179
0.657
0.04
4.325
2.353
4.779
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
21.2
18.9
15.2
13.5
11.9
9.9
9
8.8
DO (mg/L)
17.4
3.8
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 22.2
 
Blue-Green Dominance (% of NU): 14
 
          Carlson TSI: 64
                    Indiana TSI: 35
                                                                           
Blue-Greens (#/L): 3979   Greens (#/L): 379   Diatoms (#/L): 22927   Other Algae (#/L): 0   Rotifers (#/L): 294   Zooplankton (#/L): 0
 
 

1990

         
Sample Location: Deep Hole
Sample Date: 1990-08-13
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
1990
9.8
1
17
9
101
8.1
7.2
770
500
250.9
296.1
0.01
0.265
0.049
0.315
1.495
0.604
0.021
4.435
1.145
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)
19.3
19.1
18
17.5
16.3
13.2
11.3
9.5
8.9
DO (mg/L)
11
8.9
3.6
0.6
0.3
0.3
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 44
 
Blue-Green Dominance (% of NU): 70
 
          Carlson TSI: 60
                    Indiana TSI: 49
                                                                           
Blue-Greens (#/L): 43121   Greens (#/L): 3377   Diatoms (#/L): 4677   Other Algae (#/L): 9872   Rotifers (#/L): 381   Zooplankton (#/L): 0
 
 

1992

         
Sample Location: Deep Hole
Sample Date: 1992-08-17
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
5.8
0.7
7
5
112.19
8.4
7.3
680
560
225
234
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)
21.9
20.6
20.3
19.8
19.1
18
16.9
13.3
DO (mg/L)
19.5
14.4
10.2
7
3.1
0.2
0.1
0.1
                                                                           
% Water Column Oxic: 68.9
 
Blue-Green Dominance (% of NU): 9.7
 
          Carlson TSI: 65
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 18583   Greens (#/L): 8150   Diatoms (#/L): 147036   Other Algae (#/L): 14509   Rotifers (#/L): 0   Zooplankton (#/L): 2005
 
 

1997

         
Sample Location: Deep Hole
Sample Date: 1997-08-04
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
1997
9.8
1.1
40
9
137.5
8.4
7.5
650
520
238
326.7
0.01
0.729
0.07
0.78
31.48
1.27
0.029
0.018
3.205
1.4
4.2
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
24
22.9
21.1
20.9
17.5
15
13
12.9
12
DO (mg/L)
15.4
15.7
11.8
4.5
2
0
0
0
0
0
                                                                           
% Water Column Oxic: 44.4
 
Blue-Green Dominance (% of NU): 45
 
          Carlson TSI: 63
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 32769   Greens (#/L): 10895   Diatoms (#/L): 10979   Other Algae (#/L): 15988   Rotifers (#/L): 2839   Zooplankton (#/L): 151.1
 
 

2002

         
Sample Location: Deep Hole
Sample Date: 2002-07-08
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
2002
9.8
2
22
12
103.4
8.3
7.6
780
425
241
210
0.01
0.029
0.039
0.083
0
1.881
0.837
0.205
0.892
1.074
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
26.3
24.8
24.2
10.9
17.9
12.7
11.5
10.6
10.1
DO (mg/L)
8.9
8.9
8.5
7.3
3.2
0.3
0.2
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 34.1
 
Blue-Green Dominance (% of NU): 96
 
          Carlson TSI: 54
                    Indiana TSI: 47
                                                                           
Blue-Greens (#/L): 209705   Greens (#/L): 2248   Diatoms (#/L): 2211   Other Algae (#/L): 3148   Rotifers (#/L): 37   Zooplankton (#/L): 134.1
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-07-06
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
8.8
1.6
10.78
8.5
115
8.3
7.45
589
401
246.7
232
0.01
0.114
0.022
0.173
13.05
2.874
0.611
0.018
1.259
1.118
2.741
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)
21.9
21.3
20.3
19.5
18.8
17.8
14.5
12.6
10.9
9.7
8.8
DO (mg/L)
11.2
11.6
10.3
6.1
5.7
2.8
0.1
0
0
0
0
                                                                           
% Water Column Oxic: 45.45
 
Blue-Green Dominance (% of NU): 54.1
 
          Carlson TSI: 53
                    Indiana TSI: 43
                                                                           
Blue-Greens (#/L): 39167   Greens (#/L): 8450   Diatoms (#/L): 17942   Other Algae (#/L): 6608   Rotifers (#/L): 120   Zooplankton (#/L): 63.3
 
 

2010

         
Sample Location: Deep Hole
Sample Date: 2010-06-29
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
2010
9.14
1.08
11.62
9.2
105.7
8.2
7.4
622
460
259
287
0.01
0.092
0.02
0.161
18.05
1.869
0.861
0.04
2.153
1.461
3.116
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)
25.4
25
24.3
23.3
21.6
16.5
13
11
9.3
8.7
8
DO (mg/L)
10.6
10.2
9.9
3.8
0.6
0.1
0
0
0
0
0
                                                                           
% Water Column Oxic: 22
 
Blue-Green Dominance (% of NU): 53.8
 
Blue-Green Dominance (% of cells): 5.63
          Carlson TSI: 55
                    Indiana TSI: 54
                                                                           
Blue-Greens (#/L): 34596   Greens (#/L): 54725   Diatoms (#/L): 455415   Other Algae (#/L): 69193   Rotifers (#/L): 0   Zooplankton (#/L): 92.9
Blue-Greens (cells/L): 1417   Greens (cells/L): 170   Diatoms (cells/L): 960   Other Algae (cells/L): 88   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-06-25
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
2012
8.53
0.9
12.89
8.2
148.8
8.2
7.5
683
496
219
300
0.01
0.093
0.028
0.139
25.66
0.626
0.184
0.018
1.286
1.314
2.504
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)
25.8
25.7
25.7
25.6
22.8
17.7
14.8
12.6
10.9
10
DO (mg/L)
12.21
12.17
11.84
12.14
5.02
0.09
0.04
0.03
0.02
0.02
                                                                           
% Water Column Oxic: 37.5
 
Blue-Green Dominance (% of NU): 97.1
 
Blue-Green Dominance (% of cells): 95.5
          Carlson TSI: 64
                   
                                                                           
Blue-Greens (#/L): 3353124   Greens (#/L): 106448   Diatoms (#/L): 35483   Other Algae (#/L): 17741   Rotifers (#/L): 36   Zooplankton (#/L): 98
Blue-Greens (cells/L): 38357   Greens (cells/L): 550   Diatoms (cells/L): 319   Other Algae (cells/L): 284   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)