Clean Lakes Program: Crooked Creek - Brown County

 

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Indiana Clean Lakes Program Lake Report

Crooked Creek

 

Brown County

1993

         
Sample Location: Deep Hole
Sample Date: 1993-08-24
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
6.7
2.1
50.8
3.5
116
7.7
6.3
247
100
16.5
56.5
0.01
0.062
0.027
0.121
6.73
0.022
0.022
0.018
0.433
0.23
0.277
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)
25.7
25.3
25
24.9
23
18
12.1
8
DO (mg/L)
9.1
9.9
9.9
9.9
16.3
0.2
0.3
0.3
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 99
 
          Carlson TSI: 50
                    Indiana TSI: 23
                                                                           
Blue-Greens (#/L): 48911   Greens (#/L): 50   Diatoms (#/L): 0   Other Algae (#/L): 176   Rotifers (#/L): 96   Zooplankton (#/L): 0
 
 

1996

         
Sample Location: Deep Hole
Sample Date: 1996-08-20
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
1996
6.7
3.4
13.3
14.8
89.7
7.44
6.79
22.4
26.3
0.01
0.01
0.023
0.051
1.46
0.046
0.046
0.018
0.018
0.296
0.728
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)
30.9
29.8
29
28.5
26.5
18.8
10.8
11.5
DO (mg/L)
7.3
7.2
6.9
7.1
8.8
1.5
0.4
0.3
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 78
 
          Carlson TSI: 42
                    Indiana TSI: 17
                                                                           
Blue-Greens (#/L): 5017   Greens (#/L): 32   Diatoms (#/L): 0   Other Algae (#/L): 1373   Rotifers (#/L): 16   Zooplankton (#/L): 12
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-07-18
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
2001
6.7
1.1
14
8
118.9
9
6.7
110
94
21
23
0.01
0.056
0.016
0.113
12.39
0.013
0.013
0.018
0.532
1.427
0.924
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
26.8
25
20.3
15.6
12.2
9.7
DO (mg/L)
8.28
9.15
9.52
7.72
1.02
1
0.34
0.23
                                                                           
% Water Column Oxic: 67
 
Blue-Green Dominance (% of NU): 93
 
          Carlson TSI: 53
                    Indiana TSI: 31
                                                                           
Blue-Greens (#/L): 10010   Greens (#/L): 38   Diatoms (#/L): 0   Other Algae (#/L): 384   Rotifers (#/L): 268   Zooplankton (#/L): 28.8
 
 

2014

         
Sample Location: Deep Hole
Sample Date: 2014-08-18
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
2014
7
2.1
29.4
13.5
6.9
6.5
94
145
22
30
0.01
0.01
0.016
0.057
18.4
0.013
0.013
0.018
0.018
0.543
0.8725
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)
25.46
24.61
24.3
23
17.88
12.74
9.46
DO (mg/L)
8.67
8.96
9.1
7.96
0.36
0.19
0.09
                                                                           
% Water Column Oxic:
 
Blue-Green Dominance (% of NU): 99.5
 
Blue-Green Dominance (% of cells): 94.7
          Carlson TSI: 55
                   
                                                                           
Blue-Greens (#/L): 52337   Greens (#/L): 801   Diatoms (#/L): 1068   Other Algae (#/L): 801   Rotifers (#/L): 222   Zooplankton (#/L): 57
Blue-Greens (cells/L): 1196   Greens (cells/L): 4   Diatoms (cells/L): 2   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)