Clean Lakes Program: Turtle Creek Reservoir - Sullivan County

 

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Indiana Clean Lakes Program Lake Report

Turtle Creek Reservoir

 

Sullivan County

1993

         
Sample Location: Deep Hole
Sample Date: 1993-08-25
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
10.1
0.9
16
8
128
8.6
7.5
510
510
105
121
0.01
0.24
0.084
0.344
26.38
0.022
0.022
0.02
0.96
0.949
2.122
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
30
30
29.8
29
28.5
28.5
28
28
27
26
DO (mg/L)
10.8
10.2
14.4
6.7
7.5
4.2
2.4
0.7
0.1
0
0
                                                                           
% Water Column Oxic: 66.7
 
Blue-Green Dominance (% of NU):
 
          Carlson TSI: 64
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L): 0   Greens (#/L): 0   Diatoms (#/L): 0   Other Algae (#/L): 475   Rotifers (#/L): 0   Zooplankton (#/L): 101
 
 

1997

         
Sample Location: Deep Hole
Sample Date: 1997-07-08
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
1997
10.1
0.4
15
7
59.9
8.24
7.61
472
480
97.9
100.7
0.01
0.02
0.078
0.107
50.67
0.022
0.022
0.019
0.255
1.165
1.239
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)
27.5
27
27
27
27
27
27
26.8
26.2
26
26
DO (mg/L)
5
4.9
4.7
4.5
3.9
2.1
1.1
0
0
0
0
                                                                           
% Water Column Oxic: 60
 
Blue-Green Dominance (% of NU): 97
 
          Carlson TSI: 70
                    Indiana TSI: 33
                                                                           
Blue-Greens (#/L): 45153   Greens (#/L): 661   Diatoms (#/L): 472   Other Algae (#/L): 189   Rotifers (#/L): 189   Zooplankton (#/L): 1.6
 
 

1999

         
Sample Location: Deep Hole
Sample Date: 1999-08-03
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
1999
10.1
1
19
8
61.6
8.2
8.1
530
601
109
114
0.014
0.019
0.092
0.125
24.49
0.022
0.022
0.018
0.018
1.111
1.36
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)
31.1
31.1
31.1
31.1
31.1
31
30.9
30.8
30.5
30.3
28.5
DO (mg/L)
4.66
4.66
4.58
4.48
4.48
4.48
4.3
4.57
4.55
4.36
0.12
                                                                           
% Water Column Oxic: 88.8
 
Blue-Green Dominance (% of NU): 54
 
          Carlson TSI: 64
                    Indiana TSI: 26
                                                                           
Blue-Greens (#/L): 239   Greens (#/L): 25   Diatoms (#/L): 76   Other Algae (#/L): 13   Rotifers (#/L): 88   Zooplankton (#/L): 1.1
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-08-18
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
2009
8.53
0.4
8.33
6.88
97.7
8.6
7.7
446
436
110.25
111
0.01
0.01
0.062
0.097
39.86
0.013
0.013
0.018
0.229
1.013
1.013
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)
31.2
30.9
30.5
30.4
29.8
29.7
29.5
29.4
29
DO (mg/L)
7.7
7.2
7.1
6.7
4
3.4
3.1
2.6
0.02
                                                                           
% Water Column Oxic: 70.33
 
Blue-Green Dominance (% of NU): 97.5
 
          Carlson TSI: 68
                    Indiana TSI: 28
                                                                           
Blue-Greens (#/L): 6182   Greens (#/L): 17   Diatoms (#/L): 0   Other Algae (#/L): 26   Rotifers (#/L): 112   Zooplankton (#/L): 1.4
 
 

 

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)