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Stakeholder Input on Modifying the NPDES Regulations for Municipal Sanitary Sewer Collection Systems (MS4s) and Sanitary Sewer Overflows (SSOs)

May 28, 2010

Stakeholder Input on Modifying the NPDES Regulations for Municipal Sanitary Sewer Collection Systems (MS4s) and Sanitary Sewer Overflows (SSOs)

On May 26, 2010, the Assistant Administrator for the Office of Water, Peter Silva, signed a Federal Register Notice [see pre-publication Federal Register Notice (PDF, 25 pp, 4MB)] seeking stakeholder input to help EPA determine whether to modify the National Pollutant Discharge Elimination System (NPDES) regulations as they apply to municipal sanitary sewer collection systems and sanitary sewer overflows (SSOs).

Input will be provided through both written comments and during four public listening sessions in late June and early July. A webcast will be accessible nationally for members of the public that cannot attend the listening sessions. In addition, EPA is seeking the public's perspective on the 2005 Draft Peak Flows Policy. Written comments are due within 60 days of publication in the Federal Register. As described in the Federal Register Notice, EPA is seeking input on the following questions:

1. Should EPA clarify its standard permit conditions for SSO reporting, recordkeeping, and public notification?
2. Should EPA develop a standard permit condition with requirements for capacity, management, and operations & maintenance programs based on asset management principles?
3. Should EPA require permit coverage for municipal satellite collection systems?
4. What is the appropriate role of NPDES permits in addressing unauthorized SSOs that are caused by exceptional circumstances?
5. How should EPA address Peak Flows at POTW treatment plants?
6. What are the costs and benefits of capacity, management, and operations & maintenance programs and asset management of sanitary sewers?

NPDES Permit Requirements for Municipal Sanitary Sewer Collection Systems and SSOs - The draft fact sheet (PDF, 3 pp, 41K) and model permit conditions (PDF, 7 pp, 74K) explain that NPDES permit authorities should be improving implementation of NPDES permit requirements for SSOs and sanitary sewer collection systems by clarifying how conditions in NPDES permits for discharges from POTWs apply to the collection system serving the treatment works. For more information see the Sanitary Sewer Overflows Website at http://www.epa.gov/npdes/sso

 

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