Clean Lakes Program: Rivir (Chain of Lakes) - Noble County

 

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Indiana Clean Lakes Program Lake Report

Rivir (Chain of Lakes)

 

Noble County

1991

         
Sample Location: Deep Hole
Sample Date: 1991-07-29
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
1991
9.8
1.4
10
8.25
76.2
8.2
7.2
320
345
144.3
245.1
0.01
0.826
0.087
0.864
0.364
0.519
0.026
2.283
1.341
3.346
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
25
24.5
24.5
23
19
15
11
9
8.5
8
DO (mg/L)
7.6
7.4
6.3
5.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 33
 
Blue-Green Dominance (% of NU): 25
 
          Carlson TSI: 62
                    Indiana TSI: 32
                                                                           
Blue-Greens (#/L): 1807   Greens (#/L): 981   Diatoms (#/L): 3665   Other Algae (#/L): 568   Rotifers (#/L):   Zooplankton (#/L): 322
 
 

1994

         
Sample Location: Deep Hole
Sample Date: 1994-07-12
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
9.8
2
40
11
136
8.6
7.5
380
332
158
227.5
0.01
0.651
0.01
0.725
10.15
0.06
0.022
0.025
1.513
0.23
1.019
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)
29.5
28.3
27.8
26.4
24.9
19.5
14.5
12.5
10.6
10
9
DO (mg/L)
10.5
11.5
11.4
7.6
6.2
0.6
0.2
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 48
 
Blue-Green Dominance (% of NU): 21
 
          Carlson TSI: 47
                    Indiana TSI: 35
                                                                           
Blue-Greens (#/L): 27099   Greens (#/L): 749   Diatoms (#/L): 21123   Other Algae (#/L): 80798   Rotifers (#/L): 0   Zooplankton (#/L): 1527
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-08-14
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
9.8
1.3
12
9
96.6
8.2
7.35
457.3
344
153
216
0.014
0.938
0.07
1.128
6.11
0.249
0.022
0.141
2.733
1.252
3.863
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)
28.6
25.5
25
24.7
22.9
17.9
13.2
10.5
9.2
8.3
7.8
DO (mg/L)
7.43
8.119
7.92
7.4
2.63
1.05
0.39
0.38
0.37
0.37
0.36
                                                                           
% Water Column Oxic: 44
 
Blue-Green Dominance (% of NU): 96
 
          Carlson TSI: 56
                    Indiana TSI: 58
                                                                           
Blue-Greens (#/L): 377572   Greens (#/L): 1310   Diatoms (#/L): 1727   Other Algae (#/L): 13819   Rotifers (#/L): 477   Zooplankton (#/L): 51.5
 
 

2004

         
Sample Location: Deep Hole
Sample Date: 2004-07-26
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
2004
9.7
1.2
30
18.6
91.1
8.2
7.4
377
354
163
244
0.02
0.812
0.074
0.826
29.67
0.015
0.013
0.019
1.909
1.155
2.838
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)
24.4
24.3
24.2
24.1
23.4
19.2
12.4
9.3
7.8
6.8
DO (mg/L)
7.8
6.91
6.04
4.7
1.08
0.08
0.03
0.01
0.01
0
                                                                           
% Water Column Oxic: 38
 
Blue-Green Dominance (% of NU): 67.7
 
          Carlson TSI: 62
                    Indiana TSI: 42
                                                                           
Blue-Greens (#/L): 36437   Greens (#/L): 2077   Diatoms (#/L): 321   Other Algae (#/L): 14845   Rotifers (#/L): 98   Zooplankton (#/L): 32.7
 
 

2013

         
Sample Location: Deep Hole
Sample Date: 2013-07-09
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
2013
9.45
0.6
3.55
16.4
8.25
7.5
391
450
149
158
0
0.342
0.021
0.3735
49.76
0.113
0.148
0.018
1.16
0.966
1.819
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)
26.81
26.3
23.01
20.45
15.76
11.6
9.55
8.61
8.2
8
DO (mg/L)
10.49
9.32
1.29
0.24
0.16
0.13
0.13
0.13
0.14
0.13
                                                                           
% Water Column Oxic: 21.16
 
Blue-Green Dominance (% of NU): 95
 
Blue-Green Dominance (% of cells): 66.6
          Carlson TSI: 72
                   
                                                                           
Blue-Greens (#/L): 125295   Greens (#/L): 47335   Diatoms (#/L): 2228   Other Algae (#/L): 12808   Rotifers (#/L): 518   Zooplankton (#/L): 47
Blue-Greens (cells/L): 2513   Greens (cells/L): 109   Diatoms (cells/L): 9   Other Algae (cells/L): 13   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)