Update: On February 3, 2025, EPA extended the comment period on the 2026 Multi-Sector General Permit (MSGP) to April 4, 2025.

EPA is proposing to promulgate new methods and update the regulatory tables of approved methods for pollutant analysis under ...

“There’s not an example that comes to mind,” said Walter Ariss, who manages National Pollutant Discharge Elimination System permits for the Ohio EPA. The EPA event included an informal presentation, a ...

“There’s not an example that comes to mind,” said Walter Ariss, who manages National Pollutant Discharge Elimination System permits for the Ohio EPA. The EPA event included an informal ...