In this photo made on Wednesday, Dec. 15, 2010, Cecil Griffith, right, the maintenance supervisor, and Jim Riggio, the plant manager for the Beaver Falls Municipal Authority, are reflected in the ... more 
In this photo made on Wednesday, Dec. 15, 2010, Cecil Griffith, right, the maintenance supervisor, and Jim Riggio, the plant manager for the Beaver Falls Municipal Authority, are reflected in the water of one of the filtering tanks at the Beaver falls Municipal Authority water treatment plant in Beaver Falls, Pa. Their water began flunking tests for trihalomethanes regularly last year, around the time that a facility 18 miles upstream became Pennsylvania's dominant gas wastewater treatment plant. less 
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Associated Press | Photo By Keith Srakocic
Wed, Jan 5, 2011 4:19 AM EST