You are subscribed to It All Starts With Science Blog for U.S. Environmental Protection Agency. This information has recently been updated, and is now available. 07/22/2013 03:32 PM EDT By Dustin Renwick Flushing is the easy part. What happens in our sewer systems after that remains unseen, hidden in the aging network of millions of miles of underground pipes. Sometimes the pipes overflow due to heavy rain and storms. In fact, the Cincinnati area's combined sewer systems discharge about 16 billion gallons of raw [...]
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