Clean Lakes Program: Goshen Dam Pond - Elkhart County

 

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Indiana Clean Lakes Program Lake Report

Goshen Dam Pond

 

Elkhart County

1995

         
Sample Location: Deep Hole
Sample Date: 1995-08-07
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
1995
2.4
0.6
12
5.5
70
7.9
7.85
550
545
199.5
212.5
0.041
0.043
0.121
0.118
16.7
1.358
1.218
0.064
0.11
0.922
0.984
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
23.9
23.8
23.6
DO (mg/L)
7.3
6.6
5.9
5.8
4.4
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 67
 
          Carlson TSI: 66
                    Indiana TSI: 32
                                                                           
Blue-Greens (#/L): 8714   Greens (#/L): 3645   Diatoms (#/L): 486   Other Algae (#/L): 130   Rotifers (#/L): 16   Zooplankton (#/L): 17.3
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-07-25
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
2000
2.4
1
25
7
95.6
8.2
609
236
0.014
0.079
6.01
1
0.039
0.609
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)
21.6
19.6
19.3
19.1
DO (mg/L)
9.96
8.85
8.79
7.85
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 13
 
          Carlson TSI: 58
                    Indiana TSI: 18
                                                                           
Blue-Greens (#/L): 576   Greens (#/L): 1257   Diatoms (#/L): 1834   Other Algae (#/L): 681   Rotifers (#/L): 0   Zooplankton (#/L): 16.7
 
 

2009

         
Sample Location: Deep Hole
Sample Date: 2009-07-13
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
2.4
1.3
10.76
71.2
7.9
535
231
0.026
0.049
3.75
1
0.053
0.607
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)
22.9
21.4
21
20.8
DO (mg/L)
9.2
7.2
7.3
7
                                                                           
% Water Column Oxic: 100
 
Blue-Green Dominance (% of NU): 95.4
 
          Carlson TSI: 53
                    Indiana TSI: 36
                                                                           
Blue-Greens (#/L): 62569   Greens (#/L): 530   Diatoms (#/L): 2071   Other Algae (#/L): 385   Rotifers (#/L): 48   Zooplankton (#/L): 8.9
 
 

2012

         
Sample Location: Deep Hole
Sample Date: 2012-07-18
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
2012
2.4
1.1
20.1
6.6
13
8
647
248
0.027
0.087
9.93
0.519
0.118
0.806
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
27.4
26.5
25.9
DO (mg/L)
1.23
1.16
0.96
0.32
                                                                           
% Water Column Oxic: 50
 
Blue-Green Dominance (% of NU): 99.4
 
Blue-Green Dominance (% of cells): 58.5
          Carlson TSI: 60
                   
                                                                           
Blue-Greens (#/L): 185759   Greens (#/L): 72177   Diatoms (#/L): 23353   Other Algae (#/L): 35029   Rotifers (#/L): 679   Zooplankton (#/L): 607
Blue-Greens (cells/L): 49278   Greens (cells/L): 216   Diatoms (cells/L): 24   Other Algae (cells/L): 35   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)