Indiana Clean Lakes Program Lake Report |
Twin |
Sullivan County |
|||||||||||||||||||||||||||||||||||
1999 |
Sample Location: Deep Hole |
Sample Date: 1999-08-09 |
|||||||||||||||||||||||||||||||||||
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 |
12.2 |
2.2 |
65 |
28
|
102.9 |
7.9 |
7.1 |
361.6 |
261.2 |
291 |
491 |
0.03 |
0.049 |
0.021 |
0.041 |
0.02 |
0.022 |
0.022 |
0.018 |
2.039 |
0.436 |
2.624 |
|||||||||||||||
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 |
28.5 |
28.5 |
28.2 |
28 |
27.8 |
21.6 |
16.8 |
13.4 |
10.9 |
9.6 |
8.7 |
8.3 |
8.1 |
|||||||||||||||||||||||
DO (mg/L) |
8.17 |
8.01 |
7.89 |
7.71 |
7.74 |
7.27 |
12.92 |
12.89 |
11.42 |
2.94 |
0.41 |
0.33 |
0.31 |
0.29 |
|||||||||||||||||||||||
% Water Column Oxic: 75 |
Blue-Green Dominance (% of NU): 44 |
Carlson TSI: 30 | |||||||||||||||||||||||||||||||||||
| Indiana TSI: 10 | |||||||||||||||||||||||||||||||||||||
| Blue-Greens (#/L): 34 | Greens (#/L): 2 | Diatoms (#/L): 2 | Other Algae (#/L): 31 | Rotifers (#/L): 7 | Zooplankton (#/L): 0.7 | ||||||||||||||||||||||||||||||||
2008 |
Sample Location: Deep Hole |
Sample Date: 2008-08-19 |
|||||||||||||||||||||||||||||||||||
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 |
|||||||||||||||
2008 |
13.4 |
2.9 |
29.3 |
20
|
104.5 |
7.5 |
7.1 |
3010 |
3620 |
469.5 |
589 |
0.01 |
0.1 |
0.01 |
0.01 |
3.64 |
0.013 |
0.013 |
0.035 |
2.533 |
0.187 |
2.478 |
|||||||||||||||
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) |
27.45 |
26.43 |
26.23 |
26.13 |
25.25 |
21.84 |
16.46 |
16.16 |
14.74 |
13.26 |
11.87 |
10.91 |
10.09 |
9.68 |
|||||||||||||||||||||||
DO (mg/L) |
8.2 |
8.14 |
8.25 |
8.13 |
10.43 |
13.94 |
9.95 |
5.52 |
1.01 |
0.63 |
0.53 |
0.49 |
0.47 |
0.44 |
|||||||||||||||||||||||
% Water Column Oxic: 52.2 |
Blue-Green Dominance (% of NU): 46.5 |
Carlson TSI: 42 | |||||||||||||||||||||||||||||||||||
| Indiana TSI: 12 | |||||||||||||||||||||||||||||||||||||
| Blue-Greens (#/L): 426 | Greens (#/L): 88 | Diatoms (#/L): 121 | Other Algae (#/L): 233 | Rotifers (#/L): 48 | Zooplankton (#/L): 0.6 | ||||||||||||||||||||||||||||||||
| 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) | ||