Clean Lakes Program: Nasby Mill Pond - Lagrange County

 

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Indiana Clean Lakes Program Lake Report

Nasby Mill Pond

 

Lagrange County

1993

         
Sample Location: Deep Hole
Sample Date: 1993-07-06
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
1993
1.8
1.1
20
74
7.7
7.7
600
600
237
237
0.01
0.01
0.077
0.077
4.26
0.878
0.878
0.051
0.051
0.239
0.239
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)
20.4
19.9
19.9
DO (mg/L)
6.8
7
6.9
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 80
 
          Carlson TSI: 57
                    Indiana TSI: 28
                                                                           
Blue-Greens (#/L): 17383   Greens (#/L): 919   Diatoms (#/L): 3050   Other Algae (#/L): 500   Rotifers (#/L): 7   Zooplankton (#/L): 0
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-07-05
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
2000
1.8
1.3
20
5
93
8
627
220
0.01
0.054
2.18
2.538
0.099
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)
25
24
23.8
DO (mg/L)
7.8
8
7.8
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 5
 
          Carlson TSI: 52
                    Indiana TSI: 21
                                                                           
Blue-Greens (#/L): 2569   Greens (#/L): 9418   Diatoms (#/L): 39098   Other Algae (#/L): 285   Rotifers (#/L): 0   Zooplankton (#/L): 6.5
 
 

2003

         
Sample Location: Deep Hole
Sample Date: 2003-06-30
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
2003
0.91
1
0
3
130
8.3
650
240
0.011
0.032
2.44
1.432
0.046
0.651
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)
24.9
DO (mg/L)
0
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU):
 
          Carlson TSI: 51
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L):   Greens (#/L):   Diatoms (#/L):   Other Algae (#/L):   Rotifers (#/L):   Zooplankton (#/L):
 
 

2010

         
Sample Location: Deep Hole
Sample Date: 2010-07-19
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
2010
1.5
1
8.8
5
68.4
8.2
567
253
0.01
0.065
5.46
0.877
0.051
0.815
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)
24.1
23.6
23.3
DO (mg/L)
6
5.5
5.3
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 66.2
 
Blue-Green Dominance (% of cells): 53.49
          Carlson TSI: 57
                    Indiana TSI: 52
                                                                           
Blue-Greens (#/L): 793079   Greens (#/L): 249992   Diatoms (#/L): 396540   Other Algae (#/L): 43102   Rotifers (#/L): 0   Zooplankton (#/L): 0
Blue-Greens (cells/L): 5522   Greens (cells/L): 1640   Diatoms (cells/L): 1009   Other Algae (cells/L): 172   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)