Clean Lakes Program: Port Mitchell - Noble County

 

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Indiana Clean Lakes Program Lake Report

Port Mitchell

 

Noble County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-07-17
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
1990
8.5
1.2
31
14.5
78
8.1
7.5
450
316
218.4
257.2
0.008
0.233
0.025
0.163
1.825
0.448
0.045
2.818
1.493
1.728
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
19.9
18.8
16
12
9
7.2
6.9
6.5
DO (mg/L)
7.5
6.7
2.7
0.4
0.3
0.3
0.3
0.2
0.2
                                                                           
% Water Column Oxic: 82
 
Blue-Green Dominance (% of NU): 96
 
          Carlson TSI: 54
                    Indiana TSI: 55
                                                                           
Blue-Greens (#/L): 215226   Greens (#/L): 4181   Diatoms (#/L): 2420   Other Algae (#/L): 1760   Rotifers (#/L): 1338   Zooplankton (#/L): 0
 
 

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
8.5
1.3
32
11
148
8.4
7.3
510
405
229.5
234.1
0.01
0.09
0.01
0.149
17.3
0.12
0.022
0.018
2.028
0.244
1.299
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)
30.5
28.5
27.4
26.1
23.7
23.1
22.1
17.8
13.4
11.7
DO (mg/L)
11.6
12.5
12.4
10.4
2.6
0.4
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 51
 
Blue-Green Dominance (% of NU): 76
 
          Carlson TSI: 51
                    Indiana TSI: 53
                                                                           
Blue-Greens (#/L): 167557   Greens (#/L): 4913   Diatoms (#/L): 0   Other Algae (#/L): 46866   Rotifers (#/L): 0   Zooplankton (#/L): 1172
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-07-03
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
2001
8.5
1.2
15
8
93
8.5
7.5
558
405
201
244
0.012
0.741
0.04
0.736
9
0.566
0.049
0.018
3.56
0.957
4.205
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)
23.7
23.8
23.7
23.4
19.6
17.9
13.3
10
8.3
7.4
7.1
DO (mg/L)
8.7
8.5
7.9
6.8
2.7
1.3
1.2
1.3
1.3
1.3
1.3
                                                                           
% Water Column Oxic: 55.6
 
Blue-Green Dominance (% of NU): 9
 
          Carlson TSI: 55
                    Indiana TSI: 30
                                                                           
Blue-Greens (#/L): 1993   Greens (#/L): 997   Diatoms (#/L): 15578   Other Algae (#/L): 2832   Rotifers (#/L): 210   Zooplankton (#/L): 27.5
 
 

2004

         
Sample Location: Deep Hole
Sample Date: 2004-07-26
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
2004
8.5
0.7
22.5
16.2
86.6
8.4
7.6
463.1
426
176
251
0.02
0.226
0.073
0.222
33.86
0.065
0.013
0.018
1.892
1.411
2.643
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)
23.9
23.6
23.6
23.5
23
20.5
14.5
12
10.6
DO (mg/L)
9.85
7.75
7.48
6.7
2.08
0.16
0.03
0
0
                                                                           
% Water Column Oxic: 43
 
Blue-Green Dominance (% of NU): 41.3
 
          Carlson TSI: 65
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 2002   Greens (#/L): 231   Diatoms (#/L): 426   Other Algae (#/L): 2118   Rotifers (#/L): 37   Zooplankton (#/L): 37.1
 
 

2011

         
Sample Location: Deep Hole
Sample Date: 2011-07-06
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
2011
8.53
1.1
9.56
7.5
141.6
8.5
7.6
487.4
367.1
217
198.5
0.01
0.135
0.037
0.1805
25.04
0.474912
0.661876
0.018
1.286827
1.238255
2.184711
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)
27.8
27.1
25.6
24.3
21.2
15.7
13
11.4
9.9
9.3
DO (mg/L)
9.3
8.5
10.7
9.68
0.9
0.07
0.05
0.03
0.02
0.02
                                                                           
% Water Column Oxic: 23.4
 
Blue-Green Dominance (% of NU): 96.6
 
Blue-Green Dominance (% of cells): 70.6
          Carlson TSI: 59
                   
                                                                           
Blue-Greens (#/L): 2437426   Greens (#/L): 468736   Diatoms (#/L): 265617   Other Algae (#/L): 281241   Rotifers (#/L): 0   Zooplankton (#/L): 62.6
Blue-Greens (cells/L): 62504   Greens (cells/L): 1362   Diatoms (cells/L): 547   Other Algae (cells/L): 297   Rotifers (cells/L): 0   Zooplankton (cells/L): 0
 
 

2015

         
Sample Location: Deep hole
Sample Date: 2015-06-30
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
2015
9.9
1.1
4.18
6.56
8.1
7.8
478.9
516
209
235
0.01
0.261
0.068
0.306
49.66
1.911
0.108
0.045
1.23
1.524
1.983
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)
20.8
20.7
20.6
20
16.5
12.7
10
8.2
6.7
DO (mg/L)
6.37
5.46
5.18
0.48
0.09
0.11
0.12
0.14
0.1
                                                                           
% Water Column Oxic: 20.2
 
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 69
                   
                                                                           
Blue-Greens (#/L):   Greens (#/L):   Diatoms (#/L):   Other Algae (#/L):   Rotifers (#/L):   Zooplankton (#/L):
Blue-Greens (cells/L):   Greens (cells/L):   Diatoms (cells/L):   Other Algae (cells/L):   Rotifers (cells/L):   Zooplankton (cells/L):
 
 

 

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)