Clean Lakes Program: Round B (Ray) - Steuben County

 

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Indiana Clean Lakes Program Lake Report

Round B (Ray)

 

Steuben County

1991

         
Sample Location: Deep Hole
Sample Date: 1991-07-08
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
1991
7
5.2
43
23
104.17
8.2
7.3
380
252
130.2
154.3
0.01
0.01
0.022
0.029
0.157
0.195
0.03
0.344
7.006
1.064
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
27
27
27
27
26
22
19.5
DO (mg/L)
8.1
8.2
8.3
8.3
7.9
6.7
2.6
0.3
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 68
 
          Carlson TSI: 43
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 5660   Greens (#/L): 569   Diatoms (#/L): 253   Other Algae (#/L): 1724   Rotifers (#/L):   Zooplankton (#/L): 60
 
 

1992

         
Sample Location: Deep Hole
Sample Date: 1992-08-03
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
25
4
55
22
98.33
8.1
7.2
327
340
119
132
0.01
0.01
0.032
0.026
0.502
0.469
0.046
0.162
1.99
0.586
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
22.3
22.1
22.1
22
21.9
20.8
18.9
16
DO (mg/L)
8.2
8.4
8.4
8.3
8.2
7.9
5.7
0.2
0.2
                                                                           
% Water Column Oxic: 71.4
 
Blue-Green Dominance (% of NU): 10
 
          Carlson TSI: 47
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 2692   Greens (#/L): 2097   Diatoms (#/L): 4193   Other Algae (#/L): 13478   Rotifers (#/L): 4292   Zooplankton (#/L): 0
 
 

1997

         
Sample Location: Deep Hole
Sample Date: 1997-07-28
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
1997
7.6
3.9
48
22
95.4
8.48
7.63
340
342
123.1
158.5
0.01
0.01
0.01
0.01
1.8
0.027
0.027
0.018
0.249
0.502
0.9
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)
28.1
27.9
27
26.4
25.8
24.3
20.9
18
16
DO (mg/L)
8
8.1
7.6
8.4
8.4
7.2
0.5
0.1
0.1
                                                                           
% Water Column Oxic: 75
 
Blue-Green Dominance (% of NU): 34
 
          Carlson TSI: 38
                    Indiana TSI: 6
                                                                           
Blue-Greens (#/L): 1094   Greens (#/L): 259   Diatoms (#/L): 1224   Other Algae (#/L): 588   Rotifers (#/L): 47   Zooplankton (#/L): 5.5
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-07-02
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
7.01
3.3
82.6
7.7
7.9
322.9
306.4
123
127
0.01
0.01
0.016
0.016
2.87
0.013
0.013
0.018
0.018
1.07
1.2
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
27.4
27.4
26.9
26.5
23
21.1
DO (mg/L)
6.66
6.71
6.62
6.55
6.65
7
5.56
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 57.4
 
Blue-Green Dominance (% of cells): 20.5
          Carlson TSI: 43
                   
                                                                           
Blue-Greens (#/L): 934765   Greens (#/L): 2480720   Diatoms (#/L): 215714   Other Algae (#/L): 934764   Rotifers (#/L): 37   Zooplankton (#/L): 13
Blue-Greens (cells/L): 10193   Greens (cells/L): 6149   Diatoms (cells/L): 216   Other Algae (cells/L): 1205   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)