Clean Lakes Program: Greensburg SFA - Decatur County

 

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Indiana Clean Lakes Program Lake Report

Greensburg SFA

  

Decatur 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
2.4
0.5
6.3
4.9
4
9
9
390
390
117
117
0.222
0.222
0.566
0.566
122.69
0.022
0.022
0.058
0.058
2.089
2.089
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
24.4
22
20.7
DO (mg/L)
20
19.2
0.4
0
                                                                           
% Water Column Oxic: 41.7
  
Blue-Green Dominance (% of NU): 88
  
          Carlson TSI: 81
                    Indiana TSI: 55
                                                                           
Blue-Greens (#/L): 233669   Greens (#/L): 0   Diatoms (#/L): 0   Other Algae (#/L): 28724   Rotifers (#/L): 4329   Zooplankton (#/L): 0
 
 

1996

          
Sample Location: Deep Hole
Sample Date: 1996-08-19
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
1996
2.4
0.6
3.31
4.26
8.93
152.2
0.672
1.196
74.05
0.046
0.128
3.488
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)
0
0
0
0
DO (mg/L)
8.1
2.8
0.1
0.1
                                                                           
% Water Column Oxic: 50
  
Blue-Green Dominance (% of NU): 94
  
          Carlson TSI: 82
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L): 77623   Greens (#/L): 31   Diatoms (#/L): 31   Other Algae (#/L): 4733   Rotifers (#/L): 489   Zooplankton (#/L): 4
 
 

 

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)