Clean Lakes Program: Griffy - Monroe County

 

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Indiana Clean Lakes Program Lake Report

Griffy

 

Monroe County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-07-24
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
1990
11
4.1
62
20
129
8.6
7.2
230
250
93.4
142.8
0.01
0.01
0.013
0.042
0.116
0.119
0.018
0.544
1.185
1.54
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)
24.8
24.2
24
22
16.5
12
9.9
9
DO (mg/L)
11
10.8
10.8
6.9
4
0.4
0.2
0.2
                                                                           
% Water Column Oxic: 75
 
Blue-Green Dominance (% of NU): 90
 
          Carlson TSI: 41
                    Indiana TSI: 19
                                                                           
Blue-Greens (#/L): 4178   Greens (#/L): 0   Diatoms (#/L): 0   Other Algae (#/L): 144   Rotifers (#/L): 325   Zooplankton (#/L): 0
 
 

1997

         
Sample Location: Deep Hole
Sample Date: 1997-07-22
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
1997
11
5
52
27.5
100.6
8.19
7.32
251
106
122.8
0.01
0.01
0.06
0.063
0.94
0.221
0.105
0.158
0.038
0.353
0.518
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)
28.5
28.7
28.7
28.7
28
22.2
18.2
16
14
13.9
DO (mg/L)
7.7
7.8
7.8
7.7
6.6
7.9
7.5
0.5
0.1
0
                                                                           
% Water Column Oxic: 77.8
 
Blue-Green Dominance (% of NU): 15
 
          Carlson TSI: 43
                    Indiana TSI: 7
                                                                           
Blue-Greens (#/L): 983   Greens (#/L): 19   Diatoms (#/L): 96   Other Algae (#/L): 5532   Rotifers (#/L): 77   Zooplankton (#/L): 18.5
 
 

2001

         
Sample Location: Deep Hole
Sample Date: 2001-08-20
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
11
2.5
16
10.5
125.4
7.4
8.65
245
281
95
183
0.01
0.028
0.02
0.062
0.93
0.013
0.013
0.018
1.634
0.388
2.466
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)
26.8
26.7
26.4
26.4
26.2
26.1
21.9
16.6
13.2
11.6
11
DO (mg/L)
10.05
10.21
10.07
9.98
9.75
9.66
7.65
0.95
0.8
0.72
0.63
                                                                           
% Water Column Oxic: 56
 
Blue-Green Dominance (% of NU): 90
 
          Carlson TSI: 41
                    Indiana TSI: 28
                                                                           
Blue-Greens (#/L): 18496   Greens (#/L): 225   Diatoms (#/L): 374   Other Algae (#/L): 1273   Rotifers (#/L): 75   Zooplankton (#/L): 39.2
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-07-27
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
9.14
3.6
23
21.32
100.8
8.27
7.45
260.1
276
103
133
0.01
0.01
0.01
0.018
2.55
0.157
0.027
0.033
0.316
0.423
0.786
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)
26.7
25.1
24.8
24.7
23.4
21.3
19
15
12.2
11.2
10.4
DO (mg/L)
7.6
8
8.3
7.8
6.7
5.2
4.3
0.4
0
0
0
                                                                           
% Water Column Oxic: 54.7
 
Blue-Green Dominance (% of NU): 1.49
 
          Carlson TSI: 40
                    Indiana TSI: 21
                                                                           
Blue-Greens (#/L): 1890   Greens (#/L): 862   Diatoms (#/L): 7428   Other Algae (#/L): 120733   Rotifers (#/L): 199   Zooplankton (#/L): 61.9
 
 

2011

         
Sample Location: Deep Hole
Sample Date: 2011-08-18
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
8.5
3.6
10.6
16
91.6
8.4
7.2
251.6
254.6
80.5
116
0.01
0.01
0.013
0.0655
4.12
0.013
0.013
0.018
0.104121
0.328708
0.525546
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)
29.9
28.1
27.7
27.6
27.2
26.9
26.4
23.2
20.1
19.1
DO (mg/L)
7.5
6
6.9
7.3
7.2
6.1
1.6
0.1
0.05
0.02
                                                                           
% Water Column Oxic: 58.8
 
Blue-Green Dominance (% of NU): 89.4
 
Blue-Green Dominance (% of cells): 11.6
          Carlson TSI: 42
                   
                                                                           
Blue-Greens (#/L): 522386   Greens (#/L): 3834113   Diatoms (#/L): 39425   Other Algae (#/L): 88707   Rotifers (#/L): 30   Zooplankton (#/L): 0.3
Blue-Greens (cells/L): 34202   Greens (cells/L): 3913   Diatoms (cells/L): 39   Other Algae (cells/L): 89   Rotifers (cells/L): 66.3   Zooplankton (cells/L): 0.7
 
 

2015

         
Sample Location: Deep hole
Sample Date: 2015-04-30
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
5.2
7.7
7.3
345
661
119
144
0.01
0.01
0.01
0.01
1.33
0.26
0.345
0.018
0.018
0.2855
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)
15.41
15.16
14.65
14
11.74
8.8
6.22
5.52
5.52
6.11
DO (mg/L)
9.6
9.45
9.28
9.22
9.07
8.78
6.59
5.16
5.28
2.76
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU):
 
Blue-Green Dominance (% of cells):
          Carlson TSI: 35
                   
                                                                           
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)