Clean Lakes Program: Langenbaum - Starke County

 

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Indiana Clean Lakes Program Lake Report

Langenbaum

  

Starke County

1990

          
Sample Location: Deep Hole
Sample Date: 1990-08-06
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
1990
5.8
1.9
33
13
79
7.4
7.4
320
310
151.2
150.1
0.01
0.01
0.033
0.023
0.304
0.301
0.018
0.072
1.648
1.506
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)
21.5
21.5
21
19
DO (mg/L)
6.9
6.9
6.9
1.9
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 96
  
          Carlson TSI: 53
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 12610   Greens (#/L): 126   Diatoms (#/L): 47   Other Algae (#/L): 79   Rotifers (#/L): 247   Zooplankton (#/L): 0
 
 

1995

          
Sample Location: Deep Hole
Sample Date: 1995-08-08
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
1995
5.8
1.6
43
10
62.7
7.5
7.05
320
360
140.5
171
0.01
0.01
0.034
0.133
3.87
0.039
0.022
0.033
0.162
0.634
1.775
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)
27.2
27.2
26.9
26.9
26
21
18
DO (mg/L)
5.3
5.3
5
3.1
0.2
0
0
                                                                           
% Water Column Oxic: 71
  
Blue-Green Dominance (% of NU): 14
  
          Carlson TSI: 51
                    Indiana TSI: 12
                                                                           
Blue-Greens (#/L): 860   Greens (#/L): 4630   Diatoms (#/L): 188   Other Algae (#/L): 94   Rotifers (#/L): 266   Zooplankton (#/L): 73
 
 

1998

          
Sample Location: Deep Hole
Sample Date: 1998-08-11
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
1998
5.8
1.2
17
8.5
67
7.5
7.19
340.9
332.2
130.6
138
0.01
0.01
0.054
0.042
41.4
0.022
0.022
0.026
0.018
0.884
1.211
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)
26.3
26.2
26.1
24.7
23.9
21.5
DO (mg/L)
5.68
5.74
5.4
0.22
0.62
0
                                                                           
% Water Column Oxic: 75
  
Blue-Green Dominance (% of NU): 64
  
          Carlson TSI: 62
                    Indiana TSI: 27
                                                                           
Blue-Greens (#/L): 1922   Greens (#/L): 74   Diatoms (#/L): 407   Other Algae (#/L): 370   Rotifers (#/L): 185   Zooplankton (#/L): 55.5
 
 

 

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)