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Stormwater: the largest source of pollution into Casco Bay

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July 26—The Day the Poop Hit the Bay

October 16, 2018

On July 26, 1.69 million gallons of partially-treated wastewater overflowed from Portland’s East End Sewage Treatment Facility into Casco Bay. This story made the news and captured our attention. That same day, 9.85 million gallons of combined sewer overflows (CSOs), containing raw sewage and toxic chemicals, also entered the Bay.… Read more

Out and About with the Casco Baykeeper

June 22, 2018

As always, Casco Baykeeper Ivy Frignoca has been on the move, working across Casco Bay, the state—and the nation—on efforts to protect the environmental health of Casco Bay. A peek into her appointment calendar shows some of the highlights so far this year, as she continued to track Legislative issues… Read more

After a rainstorm, millions of gallons of polluted stormwater pour into Casco Bay.

Stormwater: the Largest Source of Pollution into Casco Bay

October 12, 2017

MS4. Unless you are a civil engineer or a municipal public works director charged with dealing with discharge permits, you may not know that “MS4” stands for municipal separate storm sewer systems (called MS4 because “s” is repeated four times). An MS4 is a system of storm drains, pipes, or… Read more

After a rainstorm, millions of gallons of polluted stormwater pour into Casco Bay.

Rainstorms – We’ve Had Some Doozies!

October 2, 2015

This past week’s deluge (5.6 inches in Portland) reminded us of the storm last summer, on August 13, 2014 (6.4 inches in Portland) when Casco Bay changed color – from blue to ghastly. We’ve seen the Bay turn brown, brown yellow, brown green – anything but blue, with anything-but-fresh rainwater… Read more