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Water: Applications & Databases

Applications & Databases

Find valuable information on the Clean Watersheds Needs Survey and the free online service for those applying for coverage under EPA's Construction General Permit or Multi-Sector General Permit.


Clean Watersheds Needs Survey (CWNS)

The CWNS is acomprehensive assessment of the capital needs required to meet the water quality goals set in the Clean Water Act.  The CWNS is conducted every four years by EPA and the states.


Electronic Notice of Intent (eNOI)

The eNOI system is a free online service for construction sites and industrial facilities that need to apply for coverage under EPA's Construction General Permit) or Multi-Sector General Permit.

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