Clean Lakes Program: Elk Creek #9 - Washington County

 

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Indiana Clean Lakes Program Lake Report

Elk Creek #9

 

Washington County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-07-31
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
32
3
45
18.5
111
8.7
6.6
160
160
38.8
0.01
0.01
0.019
0.032
0.179
0.125
0.03
0.038
1.302
1.152
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
26
25.5
24.5
21.5
17
DO (mg/L)
9
9
9.1
10.6
1
0.2
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 95
 
          Carlson TSI: 46
                    Indiana TSI: 31
                                                                           
Blue-Greens (#/L): 104566   Greens (#/L): 0   Diatoms (#/L): 5382   Other Algae (#/L): 256   Rotifers (#/L): 115   Zooplankton (#/L): 0
 
 

2002

         
Sample Location: Deep Hole
Sample Date: 2002-07-15
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
2002
6.1
2.5
42
13
137.4
8.6
7
145
125
38
41
0.01
0.012
0.027
0.03
6.31
0.013
0.067
0.039
0.294
0.403
0.534
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
29
28.2
27.9
27.2
21.6
17.5
15.4
DO (mg/L)
9.9
10.7
10.7
10.3
8.3
4.5
1.2
0.3
                                                                           
% Water Column Oxic: 82
 
Blue-Green Dominance (% of NU): 96
 
          Carlson TSI: 49
                    Indiana TSI: 20
                                                                           
Blue-Greens (#/L): 29958   Greens (#/L): 202   Diatoms (#/L): 0   Other Algae (#/L): 741   Rotifers (#/L): 135   Zooplankton (#/L): 26.4
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-08-17
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
2009
6.71
4.4
27.8
18
101.9
7.9
6.8
139.8
124.5
43
42
0.01
0.01
0.01
0.039
0.8
0.014
0.161
0.018
0.111
0.269
0.614
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
29
28.9
28.5
27.5
26.3
24.4
22.7
DO (mg/L)
8.1
8.2
8
8
9
10.8
6.8
0.05
                                                                           
% Water Column Oxic: 74.51
 
Blue-Green Dominance (% of NU): 89.9
 
          Carlson TSI: 35
                    Indiana TSI: 20
                                                                           
Blue-Greens (#/L): 33864   Greens (#/L): 119   Diatoms (#/L): 1344   Other Algae (#/L): 2213   Rotifers (#/L): 40   Zooplankton (#/L): 71
 
 

2011

         
Sample Location: Deep Hole
Sample Date: 2011-07-19
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
2011
6.1
1.7
43.05
13
88.5
74.5
6.7
116.9
98.5
38
38
0.01
0.01
0.024
0.031
6.17
0.013
0.088741
0.018
0.155114
0.41537
0.477742
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)
30.1
30.1
30.1
29.6
26.8
22.9
21.2
19.2
DO (mg/L)
7.7
7.3
7.3
6.5
11.5
0.1
0.03
0.01
                                                                           
% Water Column Oxic: 49.2
 
Blue-Green Dominance (% of NU): 59.8
 
Blue-Green Dominance (% of cells): 55.4
          Carlson TSI: 50
                   
                                                                           
Blue-Greens (#/L): 6342035   Greens (#/L): 5035297   Diatoms (#/L): 34846   Other Algae (#/L): 34846   Rotifers (#/L): 78   Zooplankton (#/L): 147.5
Blue-Greens (cells/L): 34202   Greens (cells/L): 22884   Diatoms (cells/L): 35   Other Algae (cells/L): 35   Rotifers (cells/L): 0.08   Zooplankton (cells/L): 0.15
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-07-09
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
2012
6.71
3.9
4.38
17
45.7
7.1
7
137
158
39
52
0.01
0.01
0.013
0.03
2.39
0.013
0.013
0.018
0.018
0.331
0.58
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
30.8
30.7
30.6
30.4
27.7
23.3
19
DO (mg/L)
3.42
3.43
3.43
3.42
3.38
4.13
2.66
0.18
                                                                           
% Water Column Oxic: 83.3
 
Blue-Green Dominance (% of NU): 62.4
 
Blue-Green Dominance (% of cells): 3.9
          Carlson TSI: 42
                   
                                                                           
Blue-Greens (#/L): 2134   Greens (#/L): 15736   Diatoms (#/L): 34407   Other Algae (#/L): 2134   Rotifers (#/L): 4   Zooplankton (#/L): 18
Blue-Greens (cells/L): 103   Greens (cells/L): 26   Diatoms (cells/L): 34   Other Algae (cells/L): 2   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)