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This list of stormwater-related events and workshops is compiled as a free service. Washington Stormwater Center does not promote, endorse, or otherwise recommend any of the companies, individuals, or organizations presented here.

NWQMC Webinar Series: Long-term Look at Changes in the Quality of our Nation's Rivers and Streams - Thursday, June 8 (10:00am)

National Water Quality Monitoring Council Webinar Series


"Long-term Look at Changes in the Quality of our Nation's Rivers and Streams" 

Featuring a presentation by Lori Sprague, U.S. Geological Survey National Water-Quality Program


 A new U.S. Geological Survey study provides a comprehensive, long-term look at changes in the quality of our Nation’s rivers and streams over the last four decades. For the first time, monitoring data collected by 74 organizations at almost 1,400 sites have been combined to provide a nationwide look at changes in stream quality in the 40 years since passage of the Clean Water Act.  Tracking changes in the quality of these waterways over multiple decades is crucial for evaluating the effectiveness of pollution control efforts and protecting the Nation’s water resources into the future.  A new interactive map can be used to track trends of 51 water-quality constituents and 38 aquatic-life metrics during four time periods: 1972-2012, 1982-2012, 1992-2012, and 2002-2012.

 This online interactive visualization tool can be used to: track decadal changes in concentrations and loads of nutrients, pesticides, carbon, major ions, and sediment; track changes in 38 aquatic-life metrics (types and numbers of fish, macroinvertebrates, and algae); and view trend graphs and download results.  This map was developed by the USGS National Water-Quality Assessment Project, which conducts regional and national assessments of the Nation’s water quality to provide an understanding of current water-quality conditions, whether conditions are getting better or worse over time, and how natural processes and human activities affect those conditions.


The webinar will be offered on Thursday, June 8th, 2017 at 1:00 pm ET (10:00 am PT).  Pre-registration is REQUIRED for this event.  To register, please click on the following link to register:

Once your registration has been approved, you will receive a confirmation email with instructions for joining the Webinar. 

If you miss the webinar and would like to view them later, please visit our YouTube page to view our archive of webinars, or, visit our website for more information.