Clean Lakes Program: Bower - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Bower

 

Steuben County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-07-10
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
6.7
1.3
18
10
92
7.5
6.9
790
490
260.5
262.2
0.013
0.03
0.026
0.136
3.487
1.096
0.059
2.653
1.656
0.935
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)
23.5
21.2
19
15.4
14
12.2
DO (mg/L)
9.8
6.2
0.4
0.2
0.2
0.1
                                                                           
% Water Column Oxic: 83
 
Blue-Green Dominance (% of NU): 4
 
          Carlson TSI: 54
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 269   Greens (#/L): 4533   Diatoms (#/L): 1989   Other Algae (#/L): 520   Rotifers (#/L): 96   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
6.7
0.9
21
7
85.79
7.9
7.1
710
660
243.3
239.5
0.01
0.01
0.09
0.075
3.453
2.85
0.043
0.875
0.991
1.228
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)
22.9
20.5
20
19.7
19
16.1
12.1
DO (mg/L)
13.2
11
8.4
5
1.1
0.1
0.1
                                                                           
% Water Column Oxic: 66.7
 
Blue-Green Dominance (% of NU): 7
 
          Carlson TSI: 66
                    Indiana TSI: 32
                                                                           
Blue-Greens (#/L): 4757   Greens (#/L): 4103   Diatoms (#/L): 49053   Other Algae (#/L): 9611   Rotifers (#/L): 930   Zooplankton (#/L): 0
 
 

1997

         
Sample Location: Deep Hole
Sample Date: 1997-08-05
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
6.7
1.5
25
10
131.4
8.23
7.54
690
590
242.9
319.2
0.01
0.466
0.119
0.542
24.44
1.162
0.086
0.018
2.746
1.274
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)
23.8
23.8
23.8
23.3
22.6
18.5
15.1
12.9
DO (mg/L)
10.8
11
11.1
4.8
0
0
0
0
                                                                           
% Water Column Oxic: 42.9
 
Blue-Green Dominance (% of NU): 19
 
          Carlson TSI: 63
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 3124   Greens (#/L): 1944   Diatoms (#/L): 1816   Other Algae (#/L): 9282   Rotifers (#/L): 309   Zooplankton (#/L): 26.8
 
 

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
6.7
1.1
15
7
88.8
8.2
7.6
690
500
240
242
0.01
0.108
0.079
0.192
0.86
1.369
0.04
0.029
1.623
1.034
2.544
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)
27.3
26.6
25.8
24.6
21.8
16
12.5
10.7
DO (mg/L)
10.28
9.13
7.3
6.55
0.62
0.3
0.2
0.2
                                                                           
% Water Column Oxic: 32.8
 
Blue-Green Dominance (% of NU): 75
 
          Carlson TSI: 52
                    Indiana TSI: 46
                                                                           
Blue-Greens (#/L): 54051   Greens (#/L): 2154   Diatoms (#/L): 4663   Other Algae (#/L): 10936   Rotifers (#/L): 293   Zooplankton (#/L): 170.9
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-06-30
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
6.4
1.3
7.58
6.6
66.4
8
7.5
611
477
239
262
0.01
0.143
0.058
0.178
10.14
4.345
0.209
0.124
1.941
1.543
2.781
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)
23.8
23.2
22.9
22.7
22
18.4
14.2
10.7
DO (mg/L)
7.9
6.9
5.6
5.5
3.8
0
0
0
                                                                           
% Water Column Oxic: 46.87
 
Blue-Green Dominance (% of NU): 0
 
          Carlson TSI: 57
                    Indiana TSI: 32
                                                                           
Blue-Greens (#/L): 0   Greens (#/L): 268   Diatoms (#/L): 6119   Other Algae (#/L): 0   Rotifers (#/L): 161   Zooplankton (#/L): 14.5
 
 

2011

         
Sample Location: Deep Hole
Sample Date: 2011-07-11
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
2011
5.79
4
7.59
10
72.4
8.1
7.6
695
573
260
258
0.01
0.016
0.045
0.073
15.1
1.564904
1.3872
0.058604
0.63737
1.354725
1.778445
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)
25.5
25.6
25.2
25.2
22.4
19.7
16.6
DO (mg/L)
6.2
6.5
5.86
5.68
0.57
0.14
0.02
                                                                           
% Water Column Oxic: 34.5
 
Blue-Green Dominance (% of NU): 64.5
 
Blue-Green Dominance (% of cells): 18.6
          Carlson TSI: 52
                   
                                                                           
Blue-Greens (#/L): 427972   Greens (#/L): 1306442   Diatoms (#/L): 259036   Other Algae (#/L): 304086   Rotifers (#/L): 534   Zooplankton (#/L): 115.1
Blue-Greens (cells/L): 11476   Greens (cells/L): 3401   Diatoms (cells/L): 304086   Other Algae (cells/L): 1025   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2013

         
Sample Location: Deep Hole
Sample Date: 2013-07-15
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
6.7
1.4
19.14
4.59
8
7.4
702
743
218.5
234
0.0025
0.053
0.046
0.095
23.86
4.789
1.358
0.038
1.806
1.574
3.312
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
24.79
23.79
20.9
16.04
12.02
DO (mg/L)
7.63
7.32
7.05
0.39
0.2
0.19
                                                                           
% Water Column Oxic: 29.85
 
Blue-Green Dominance (% of NU): 4.2
 
Blue-Green Dominance (% of cells): 51.5
          Carlson TSI: 61
                   
                                                                           
Blue-Greens (#/L): 57847   Greens (#/L): 36864   Diatoms (#/L): 12477   Other Algae (#/L): 3970   Rotifers (#/L): 437   Zooplankton (#/L): 672
Blue-Greens (cells/L): 59   Greens (cells/L): 425   Diatoms (cells/L): 927   Other Algae (cells/L): 4   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)