2010 Toxic Blue-green Algae
and Bacteria Sampling Results
NDEQ conducts weekly or bi-weekly sampling for toxic blue-green algae and bacteria at a number of public recreational lakes across Nebraska from May through September, and these results are updated weekly. Samples are typically collected on Monday and posted on the web site on Thursday or Friday.
At the top of the table below is a list of
all
Current Lake(s) on Health Alert
for toxic blue-green algae. Lakes that have been placed on Health Alert must subsequently have two consecutive weeks of low
readings before the alert is ended.
Samples above 20 ppb microcystin are placed on alert.
F
or more information about health alerts and what to look for, go to
Precautions and Facts Regarding Toxic Algae at Nebraska Lakes
.
For more information about the history of toxic algae sampling in Nebraska, go to
Cyanobacteria: The Nebraska Experience
The next category,
High E. Coli Bacteria Readings
, lists lakes that showed unusually high readings of bacteria in the most recent sampling, which can also be a health concern.
Samples above 235 counts/ 100 ml water are considered high.
Click here for more information about bacteria and its potential health effects.
The last category,
Other Lakes Sampled,
lists the results for lakes which are not under Health Alert for toxic algae, and their most recent sample results for bacteria are considered low.
Click on any lake name on the table below to view a chart of that lake’s sample results for toxic algae (Microcystins) and E.coli bacteria for the 2010 recreational season
Lake Name
Lake # -
- County
- Last Updated
- Microcystin (ppb)
- E.coli Bacteria
Current Lake(s) on Health Alert
Red Willow Lake
35
Frontier
09/30/2010
35
6
Willow Creek Lake
45
Pierce
09/30/2010
35
99
High E.coli Bacteria Levels
Cub Creek Lake # 12A
11
Jefferson
09/30/2010
0.09
3873
Kirkman's Cove
21
Richardson
09/30/2010
2.34
261
Lewis and Clark Reservoir
23
Knox
10/05/2010
0
308
Maskenthine Lake
27
Stanton
09/30/2010
0.25
1860
Other Lakes Sampled
Bader Park Swimming Lake
1
Merrick
09/30/2010
0.04
2
Big Indian Creek Lake
2
Gage
No Samples
No Samples
Bluestem Lake
3
Lancaster
09/30/2010
0.15
28
Box Butte Lake
4
Dawes
09/30/2010
0.23
13
Branched Oak Lake
5a
Lancaster
09/30/2010
2.2
167
Branched Oak Lake
5b
Lancaster
09/30/2010
2.01
55
Bridgeport Middle Lake
6
Morril
09/30/2010
0.13
2
Calamus Lake
7
Garfield
09/02/2010
0.27
1
Carter Lake
8
Douglas
09/30/2010
0.15
6
Conestoga Lake
9
Lancaster
09/30/2010
0.13
2
Cottonwood Lake (Yankton)
10
Cedar
10/05/2010
0
15
Cunningham Lake
12
Douglas
10/05/2010
0
162
Davis Creek Lake
13
Sherman
09/02/2010
0
1
Enders Lake at East Beach
14
Chase
09/30/2010
0.08
0
Fremont Lake # 10
15
Dodge
09/30/2010
0.05
2
Fremont Lake # 20
16a
Dodge
09/30/2010
0.07
4
Fremont Lake # 20
16b
Dodge
09/30/2010
0.06
8
Fremont Lake # 9
17
Dodge
09/30/2010
0.09
0
Harlan Lake
18
Harlan
09/30/2010
0.53
6
Holmes Lake
19
Lancaster
09/30/2010
0.98
19
Johnson Lake
20
Gosper
09/30/2010
0.14
15
Lake North
22
Platte
09/30/2010
0.06
13
Lone Star Lake
24
Fillmore
09/30/2010
0.67
2
Louisville Lake SRA No. 2
25
Cass
09/30/2010
0.41
231
Maloney Lake
26
Lincoln
09/30/2010
0.05
7
McConaughy Lake
28
Keith
09/30/2010
0.22
2
Medicine Creek Lake
29
Frontier
09/30/2010
0.18
4
Merritt Reservoir
30
Cherry
09/30/2010
12.78
199
Minatare Lake
31
Scotts Bluff
09/30/2010
0.06
27
Mormon Island Lake
32
Hall
09/30/2010
0.08
9
Oliver Lake
33
Kimball
09/30/2010
0.06
3
Pawnee Lake
34a
Lancaster
09/30/2010
2.32
38
Pawnee Lake
34b
Lancaster
09/02/2010
1.62
1
Rockford Lake
36
Gage
09/30/2010
1.59
21
Sherman Lake
37
Sherman
09/02/2010
0
2
Sutherland Lake
38
Lincoln
09/30/2010
0.01
2
Swan Creek Lake # 5A
39
Saline
09/30/2010
19.92
1
Swanson Lake
40
Hitchcock
09/30/2010
0.07
0
Two Rivers SRA Lake No. 4
41
Douglas
09/30/2010
0.03
5
Valentine Mill Pond
42
Cherry
09/30/2010
0.04
45
Victory Lake
43
Dodge
09/30/2010
0.03
3
Wagon Train Lake
44
Lancaster
09/30/2010
0.04
0
Wirth Brothers Lake
46
Johnson
09/30/2010
0.14
187
The map below shows the locations of the lakes referred to in the table above
The links below will take you to the sampling results taken during the recreational seasons ( May through September) for 2009, 2008 and 2007.
Updated information regarding 2010 toxic blue-green algae and bacteria sampling will be posted on the page staring May 6, 2010
2009 Bacteria and Toxic Algae Monitoring: Weekly Results
2008 Bacteria and Toxic Algae Monitoring: Weekly Results
2007 Bacteria and Toxic Algae Monitoring: Weekly Results
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