Clean Lakes Program: Monroe (Lower) - Monroe County

 

Go back to the Indiana Clean Lakes Website

Go back to the Indiana Map to select another county

Indiana Clean Lakes Program Lake Report

Monroe (Lower)

  

Monroe County

1990

          
Sample Location: Deep Hole
Sample Date: 1990-06-26
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
16.8
1.7
60
23
101
7.5
6.9
130
115
27.3
29.6
0.01
0.01
0.026
0.026
0.077
0.078
0.022
0.136
0.592
0.539
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
23.5
23.1
22.5
22
21.8
20.6
20
DO (mg/L)
8.4
8.6
8.5
8.3
7.2
6
3.6
2.8
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 7
  
          Carlson TSI: 52
                    Indiana TSI: 4
                                                                           
Blue-Greens (#/L): 454   Greens (#/L): 4242   Diatoms (#/L): 1703   Other Algae (#/L): 93   Rotifers (#/L): 10   Zooplankton (#/L): 64
 
 

1996

          
Sample Location: Deep Hole
Sample Date: 1996-08-27
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
1996
16.8
1
27
9
116.7
8.69
6.81
123
134
33.3
47.5
0.001
0.014
0.029
0.048
2.11
0.022
0.022
0.018
0.401
0.608
0.646
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)
27.1
27.1
27
27
26.9
26.2
24.9
22.9
19.8
18.2
17.1
DO (mg/L)
9.3
9.3
9.3
9.3
7.9
5.8
0.2
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 79
  
          Carlson TSI: 50
                    Indiana TSI: 23
                                                                           
Blue-Greens (#/L): 2957   Greens (#/L): 261   Diatoms (#/L): 131   Other Algae (#/L): 333   Rotifers (#/L): 48   Zooplankton (#/L): 18
 
 

2001

          
Sample Location: Deep Hole
Sample Date: 2001-08-20
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
2001
16.8
2
44
16.5
94
7.5
6.9
145
149
37
60
0.01
0.101
0.013
0.107
0.37
0.013
0.013
0.018
0.327
0.28
0.624
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
27.3
27.2
27.1
27
26.8
26.7
26.6
26.3
24.1
19.2
18
DO (mg/L)
7.5
7.5
7.5
7.4
7.3
7.3
7
7.1
6.5
0.8
0.7
0.6
                                                                           
% Water Column Oxic: 70
  
Blue-Green Dominance (% of NU): 84
  
          Carlson TSI: 37
                    Indiana TSI: 21
                                                                           
Blue-Greens (#/L): 10987   Greens (#/L): 207   Diatoms (#/L): 1386   Other Algae (#/L): 328   Rotifers (#/L): 122   Zooplankton (#/L): 32.1
 
 

2004

          
Sample Location: Deep Hole
Sample Date: 2004-06-21
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
2004
15.6
2.8
55
26
117
7.9
7
143.7
127.1
30
42
0.011
0.046
0.03
0.053
2.63
0.015
0.013
0.035
0.357
0.291
0.657
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)
27.8
27.5
27.3
27.2
26.9
26.7
24.5
23.4
22.7
21.8
20
17.8
17.1
16.1
15.7
15.5
15.3
DO (mg/L)
9
9.1
9.3
9.4
9.5
9.5
6
3.5
2.2
0.4
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 47
  
Blue-Green Dominance (% of NU): 18.2
  
          Carlson TSI: 46
                    Indiana TSI: 8
                                                                           
Blue-Greens (#/L): 154   Greens (#/L): 142   Diatoms (#/L): 71   Other Algae (#/L): 237   Rotifers (#/L): 202   Zooplankton (#/L): 39.5
 
 

2005

          
Sample Location: Lower
Sample Date: 2005-06-20
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
2005
15.2
2.8
36
21.5
106.1
7.8
7.2
128.2
112.2
32
44
0.011
0.034
2.69
0.013
0.013
0.076
0.316
0.442
0.701
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)
27.7
26.6
26.6
25.9
25
24.7
24.4
24
22.8
19.3
16.9
15.9
15.6
15.3
15
14.7
14.6
DO (mg/L)
8.3
8.5
8.5
8.7
8.8
8.6
8.2
7.7
6.1
0.7
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 46.1
  
Blue-Green Dominance (% of NU): 9.3
  
          Carlson TSI: 0
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L): 557   Greens (#/L): 64   Diatoms (#/L): 4851   Other Algae (#/L): 473   Rotifers (#/L): 32   Zooplankton (#/L): 10.7
 
 

2005

          
Sample Location: Deep Hole
Sample Date: 2005-08-18
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
2005
15.2
1.2
16
13.3
104
8.3
7.3
140
145
36
68
0.01
0.3
0.024
0.33
14.04
0.013
0.013
0.018
1.06
0.494
1.249
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)
29.9
29.2
28.8
28.7
28.3
28.1
27.9
27
24.3
21.3
19.9
19
18.5
17.7
17.1
16.7
DO (mg/L)
8.2
8.1
7.9
7.5
7
6.5
5.4
2.1
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 39.5
  
Blue-Green Dominance (% of NU): 95.8
  
          Carlson TSI: 54
                    Indiana TSI: 32
                                                                           
Blue-Greens (#/L): 4696   Greens (#/L): 34   Diatoms (#/L): 118   Other Algae (#/L): 34   Rotifers (#/L): 0   Zooplankton (#/L): 20.2
 
 

2006

          
Sample Location: Deep Hole
Sample Date: 2006-06-19
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
2006
15.8
2.1
96
7.9
6.9
119
105.7
30
43
0.01
0.035
0.029
0.08
0.64
0.013
0.013
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)
26.6
26.3
25.9
24.5
22.7
21.5
20.7
19.7
18.6
17.4
16.4
15.5
15.3
15.1
14.8
14.5
14.1
DO (mg/L)
7.8
7.7
7.8
8.1
5.2
2.1
0.1
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 38
  
Blue-Green Dominance (% of NU): 55.1
  
          Carlson TSI: 43
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L): 714   Greens (#/L): 109   Diatoms (#/L): 6   Other Algae (#/L): 345   Rotifers (#/L): 115   Zooplankton (#/L): 6.8
 
 

2010

          
Sample Location: Deep Hole
Sample Date: 2010-06-18
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
2010
15.9
2.4
24.9
21.3
107.7
8.6
7
129
114
33
45
0.01
0.069
0.01
0.026
1.1
0.013
0.013
0.018
0.202
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)
28.7
28.4
28.2
28.1
27.5
27
25
22.6
20
18.5
17.8
17.2
16.8
16.6
16.3
15.9
15.4
DO (mg/L)
8.2
8.5
8.2
8.5
8.8
8.8
8.3
5.7
1.9
0.1
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 44
  
Blue-Green Dominance (% of NU): 1
  
Blue-Green Dominance (% of cells): 10.5
           Carlson TSI: 39
                    Indiana TSI: 13
                                                                           
Blue-Greens (#/L): 5443   Greens (#/L): 408   Diatoms (#/L): 40735   Other Algae (#/L): 4082   Rotifers (#/L): 1140   Zooplankton (#/L): 50.7
Blue-Greens (cells/L): 100   Greens (cells/L): 2   Diatoms (cells/L): 883   Other Algae (cells/L): 34   Rotifers (cells/L): 10   Zooplankton (cells/L): 1
 
 

2011

          
Sample Location: Deep Hole
Sample Date: 2011-08-18
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
2011
16
1.5
4.9
11.7
95
7.85
8.9
107
109
36
59
0.01
0.111
0.019
0.116
10.31
0.013
0.013
0.0376671
0.734271
0.9480285
1.081445
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)
27.8
27.6
27.6
27.6
27.2
26.3
25.9
23.9
20.8
19.2
17.7
17.1
16.7
16.6
16.4
16.2
15.9
DO (mg/L)
7.6
7.6
7.6
7.6
7.4
4.3
3.2
0
0
0
0
0
0
0
0
0
0
                                                                           
% Water Column Oxic: 31.3
  
Blue-Green Dominance (% of NU): 94.1
  
Blue-Green Dominance (% of cells): 94.1
           Carlson TSI: 51
                   
                                                                           
Blue-Greens (#/L): 18416295   Greens (#/L): 505272   Diatoms (#/L): 644657   Other Algae (#/L): 0   Rotifers (#/L): 0   Zooplankton (#/L): 2.1
Blue-Greens (cells/L): 34202   Greens (cells/L): 1446   Diatoms (cells/L): 714   Other Algae (cells/L): 0   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)