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Water in Potomac Getting Better But Still Not Clean
A new report says some levels of pollution are down in the Potomac River, but cautioned that the once-troubled waterway isn’t out the woods yet.

Metropolitan Washington Council of Governments analyzed data collected between 1985 and 2016 and found that “water quality improvements have reduced pollution significantly.”

MWCOG’s 27-page report said two substances in particular have noticeably decreased: nitrogen and phosphorus.

Both are common nutrients for soil and water, but runoff from farms and waste treatment facilities can lead to excess amounts flowing into waterways.

 
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Federal Permit Required for use of Aquatic Pesticides - The EPA has approval of the courts to issue a National Pollutant Discharge Elimination System, which will require the filing of permits, along additional record-keeping and reporting requirements for point source discharges of biological and chemical pesticides that leave a residue. This included the operators that use pesticides for weed and algae control.


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