Clean Lakes Program: Irish - Kosciusko County

 

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Indiana Clean Lakes Program Lake Report

Irish

 

Kosciusko County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-08-21
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
1990
10.7
1
28
20
97
8.1
7.3
390
430
154.3
254.1
0.01
0.025
0.028
0.025
0.86
0.807
0.037
4.382
1.225
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
24
24
23
22
20.5
18
15
13.5
13
DO (mg/L)
8.3
8.1
7.9
3.2
0.2
0.1
0
0
0
0
                                                                           
% Water Column Oxic: 50
 
Blue-Green Dominance (% of NU): 91
 
          Carlson TSI: 56
                    Indiana TSI: 34
                                                                           
Blue-Greens (#/L): 21282   Greens (#/L): 924   Diatoms (#/L): 735   Other Algae (#/L): 214   Rotifers (#/L): 193   Zooplankton (#/L): 0
 
 

1994

         
Sample Location: Deep Hole
Sample Date: 1994-08-09
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
1994
10.7
1
13
11.5
84
8.3
7.5
375
430
145.5
236
0.01
0.105
0.01
0.145
10.45
0.022
0.022
0.018
2.029
0.381
2.086
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
24
24
24
24
23.5
23.5
23
19
16
15
14.5
DO (mg/L)
7.2
7.2
7.1
7.1
7
3.3
3.3
0.5
0.2
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 63
 
Blue-Green Dominance (% of NU): 77
 
          Carlson TSI: 50
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 39132   Greens (#/L): 2690   Diatoms (#/L): 5524   Other Algae (#/L): 2762   Rotifers (#/L): 0   Zooplankton (#/L): 863
 
 

1998

         
Sample Location: Deep Hole
Sample Date: 1998-07-06
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
1998
10.7
1.3
35
13.25
119
8.42
7.52
400
350
165.1
208
0.01
0.01
0.022
0.031
9.39
0.162
0.022
0.029
1.063
0.732
1.674
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
25.5
25.5
25.5
24.5
22.1
20
15.2
12
11.4
11
DO (mg/L)
9.8
9.75
9.7
9.7
8.7
3.6
0.9
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 55.6
 
Blue-Green Dominance (% of NU): 83
 
          Carlson TSI: 53
                    Indiana TSI: 28
                                                                           
Blue-Greens (#/L): 9157   Greens (#/L): 1244   Diatoms (#/L): 326   Other Algae (#/L): 163   Rotifers (#/L): 143   Zooplankton (#/L): 29.2
 
 

2003

         
Sample Location: Deep Hole
Sample Date: 2003-08-18
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
2003
10.36
1
32
12
129.5
8.7
7.6
391
461
149
215
0.01
0.38
0.037
0.391
10.25
0.013
0.013
0.027
1.585
1.023
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)
28.2
27.5
27.3
27.1
26.3
25
24.2
21.5
18.1
15.7
14.6
DO (mg/L)
10.4
10.8
10.3
9.3
6.2
1.8
1.1
0.6
0.5
0.5
0.4
                                                                           
% Water Column Oxic: 29
 
Blue-Green Dominance (% of NU): 93
 
          Carlson TSI: 56
                    Indiana TSI: 47
                                                                           
Blue-Greens (#/L): 64329   Greens (#/L): 842   Diatoms (#/L): 1965   Other Algae (#/L): 2045   Rotifers (#/L): 281   Zooplankton (#/L): 73.8
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-06-28
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
2012
10.36
1.4
13.23
13.1
105
7.6
7.1
392
344.7
142
215
0.01
0.045
0.03
0.06
7.42
0.013
0.013
0.018
1.122
1.28
2.41
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)
28.4
28.1
28
27.9
27.4
25
21.9
18.9
15.9
14.2
12.7
12.3
DO (mg/L)
8.7
8.68
8.45
8.27
8.16
7.01
1.44
1.1
0.24
0.07
0.04
0.03
                                                                           
% Water Column Oxic: 40
 
Blue-Green Dominance (% of NU): 74.3
 
Blue-Green Dominance (% of cells): 42.6
          Carlson TSI: 55
                   
                                                                           
Blue-Greens (#/L): 2786317   Greens (#/L): 1743693   Diatoms (#/L): 1689766   Other Algae (#/L): 323571   Rotifers (#/L): 8   Zooplankton (#/L): 20
Blue-Greens (cells/L): 40015   Greens (cells/L): 4926   Diatoms (cells/L): 1690   Other Algae (cells/L): 7191   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)