Clean Lakes Program: Story (Upper) - Dekalb County

 

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Indiana Clean Lakes Program Lake Report

Story (Upper)

  

Dekalb County

1994

          
Sample Location: Deep Hole
Sample Date: 1994-07-06
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
1994
8.8
1.9
43
16
103.6
8.4
7.2
450
420
181.8
289.3
0.01
1.164
0.01
0.013
4.62
0.022
0.022
0.021
3.883
0.23
0.23
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)
28.8
28.5
28.3
28
26.8
24
19.5
15
13
12
10.8
DO (mg/L)
8.6
9
8.6
8.8
6.4
0.5
1.2
0.2
0.15
0.2
0.15
                                                                           
% Water Column Oxic: 60
  
Blue-Green Dominance (% of NU): 89
  
          Carlson TSI: 45
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 18975   Greens (#/L): 251   Diatoms (#/L): 0   Other Algae (#/L): 1658   Rotifers (#/L):   Zooplankton (#/L): 468
 
 

2002

          
Sample Location: Deep Hole
Sample Date: 2002-08-12
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
2002
8.8
1.7
23
11.5
90.7
8.3
7.5
425
390
155
23.7
0.01
0.451
0.034
0.407
3.08
0.013
0.013
0.018
2.206
0.993
3.575
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)
28.7
28.3
27.3
26.9
25.5
20.2
14.4
11.1
9.5
8.5
DO (mg/L)
7.2
7.5
7.2
6.9
4.3
1.7
0.3
0.2
0.2
0.2
                                                                           
% Water Column Oxic: 45.3
  
Blue-Green Dominance (% of NU): 83
  
          Carlson TSI: 50
                    Indiana TSI: 37
                                                                           
Blue-Greens (#/L): 40367   Greens (#/L): 206   Diatoms (#/L): 114   Other Algae (#/L): 7196   Rotifers (#/L): 663   Zooplankton (#/L): 541
 
 

2009

          
Sample Location: Deep Hole
Sample Date: 2009-07-07
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
7.92
1.1
18.3
10.17
125.8
8.5
7.7
392.7
296.3
185
212.9
0.01
0.558
0.011
0.578
10.18
0.017
0.015
0.018
2.758
0.881
4
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)
24.5
24.5
24.4
24.4
20.7
15
11
9.3
8.4
DO (mg/L)
10.5
10.5
10.6
10.6
4.5
0.24
0.01
0
0
                                                                           
% Water Column Oxic: 37.87
  
Blue-Green Dominance (% of NU): 96.2
  
          Carlson TSI: 50
                    Indiana TSI: 60
                                                                           
Blue-Greens (#/L): 258732   Greens (#/L): 1736   Diatoms (#/L): 616   Other Algae (#/L): 2241   Rotifers (#/L): 5433   Zooplankton (#/L): 109.2
 
 

 

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)