WI-DNR Lakes-L Blog Webcast Info.

Archived version of Jan. 5, 2010 Webcast – Draft National Lakes Assessment is now posted on EPA’s Watershed Academy Web site

Audio Version of Jan. 5 Webcast on the Draft National Lakes Assessment is Now Available.

On Jan. 5, 2010 EPA’s Watershed Academy sponsored a Webcast Seminar on the Draft National Lakes Assessment. The archives of this Webcast are now posted on EPA’s Watershed Academy Web site at:

http://www.epa.gov/owow/watershed/wacademy/webcasts/archives.html#20100

Note that we had some technical difficulties with the Jan. 5th Webcast and we apologize for that. But now you can listen to the cleaned-up,

Webcast at the above url. The Jan. 5th Webcast speakers included: Sarah Lehmann, Team Leader for National Aquatic Resource Surveys, Monitoring Branch, EPA’s Office of Water and Neil C. Kamman, Chief, Water Quality Monitoring, Assessment and Planning, Vermont Department of Environmental Conservation

Please listen to the archives of this Webcast to learn about the first-ever assessment of the condition of the nation’s lakes. This draft report, the National Lakes Assessment: A Collaborative Survey of the Nation’s Lakes, is available for public review and comment at:

www.epa.gov/lakessurvey (public comments are due by Jan. 22, 2010).

The report shows that 56% of the nation’s lakes support healthy biological communities. The report also identifies poor lakeshore habitat conditions and high levels of nutrients as widespread stressors impacting lake water quality in the United States.

Listen to this Webcast to learn more about the National Lakes Assessment (NLA), which is the latest in a series of surveys of the nation’s aquatic resources being conducted by EPA and its state and tribal partners. The NLA provides unbiased estimates of the condition of natural and man-made freshwater lakes, ponds and reservoirs greater than 10 acres and at least one meter deep. Using a statistical survey design, 1,028 lakes were selected at random to represent the condition of the larger population of lakes across the lower 48 states. The NLA presents data on the extent of lakes that support healthy biological communities, selected stressors impacting lake quality, and information on recreational indicators of lake condition such as microcystin, an algal toxin which can harm humans, pets, and wildlife. The NLA also reports on lake trophic status and includes comparisons of current data to 1972 data on wastewater-impacted lakes.

Anne Weinberg, U.S. Environmental Protection Agency, Communications Coordinator, Assessment and Watershed Protection Division

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