2009 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
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.
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.
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 2009 recreational season
Lake # -
- Last Updated
- Microcystin (ppb)
- E.coli Bacteria
High E.coli Bacteria Levels
Medicine Creek Lake
Other Lakes Sampled
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 2008 and 2007.
2008 Bacteria and Toxic Algae Monitoring: Weekly Results
2007 Bacteria and Toxic Algae Monitoring: Weekly Results
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