Clean Lakes Program: Ontario Mill Pond - Lagrange County

 

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Indiana Clean Lakes Program Lake Report

Ontario Mill Pond

 

Lagrange County

1993

         
Sample Location: Deep Hole
Sample Date: 1993-07-05
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
1993
2.1
1
15
6.5
76
7.9
7.9
610
610
226.8
226.8
0.01
0.01
0.165
0.165
8.19
0.938
0.938
0.037
0.037
0.436
0.436
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
25.6
24.9
24.4
DO (mg/L)
7.6
7.1
6.5
5.9
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 23
 
          Carlson TSI: 63
                    Indiana TSI: 21
                                                                           
Blue-Greens (#/L): 12129   Greens (#/L): 24754   Diatoms (#/L): 16651   Other Algae (#/L): 199   Rotifers (#/L): 3   Zooplankton (#/L): 0
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-07-05
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
2000
2.1
1.3
27
7
79.2
8
644
221
0.01
0.066
3.19
2.269
0.114
1.108
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)
26.5
25.6
24.6
24.5
DO (mg/L)
7.1
7.1
6.6
6.5
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 7
 
          Carlson TSI: 54
                    Indiana TSI: 24
                                                                           
Blue-Greens (#/L): 1872   Greens (#/L): 7844   Diatoms (#/L): 17202   Other Algae (#/L): 0   Rotifers (#/L): 0   Zooplankton (#/L): 0
 
 

2003

         
Sample Location: Deep Hole
Sample Date: 2003-06-30
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
2003
2.44
1.1
22
6
84.5
8.1
636
244
0.012
0.038
4.61
1.088
0.049
0.745
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
23.3
22.4
22
DO (mg/L)
8.02
7.98
7.43
6.58
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 47
 
          Carlson TSI: 54
                    Indiana TSI: 18
                                                                           
Blue-Greens (#/L): 4268   Greens (#/L): 2571   Diatoms (#/L): 1903   Other Algae (#/L): 283   Rotifers (#/L): 0   Zooplankton (#/L): 1.8
 
 

2010

         
Sample Location: Deep Hole
Sample Date: 2010-07-19
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
2010
2.7
0.9
5.7
6.6
62
8.1
572
251
0.01
0.049
5.89
0.733
0.05
0.747
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)
25.1
24.7
24.5
24.5
DO (mg/L)
5
5.1
5.1
4.8
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 71.9
 
Blue-Green Dominance (% of cells): 53.6
          Carlson TSI: 57
                    Indiana TSI: 51
                                                                           
Blue-Greens (#/L): 1340869   Greens (#/L): 443168   Diatoms (#/L): 545438   Other Algae (#/L): 170449   Rotifers (#/L): 0   Zooplankton (#/L): 0.8
Blue-Greens (cells/L): 8184   Greens (cells/L): 1915   Diatoms (cells/L): 1000   Other Algae (cells/L): 284   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2013

         
Sample Location: Deep Hole
Sample Date: 2013-07-08
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
2013
2.44
1.55
8.66
8
6.2
644
638
223
0.007
0.032
2.65
1.85
0.067
0.788
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)
23.66
23.65
23.33
DO (mg/L)
6.14
6.07
5.75
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 95.5
 
Blue-Green Dominance (% of cells): 54.3
          Carlson TSI: 49
                   
                                                                           
Blue-Greens (#/L): 2124   Greens (#/L): 593   Diatoms (#/L): 306   Other Algae (#/L): 709   Rotifers (#/L): 149   Zooplankton (#/L): 34
Blue-Greens (cells/L): 63   Greens (cells/L): 3   Diatoms (cells/L): 0   Other Algae (cells/L): 0   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2014

         
Sample Location: Deep Hole
Sample Date: 2014-06-23
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
2014
1.8
1.2
13.4
6
8
602
238
0.01
0.07
7.96
0.79
0.114
0.786
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)
22.85
22.77
DO (mg/L)
5.45
5.22
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 50
 
Blue-Green Dominance (% of cells): 33.2
          Carlson TSI: 58
                   
                                                                           
Blue-Greens (#/L): 8925   Greens (#/L): 1373   Diatoms (#/L): 12703   Other Algae (#/L): 3548   Rotifers (#/L): 262   Zooplankton (#/L): 61
Blue-Greens (cells/L): 17   Greens (cells/L): 0   Diatoms (cells/L): 13   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)