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The National Municipal Stormwater Alliance or NMSA is a 501(c)(3) with state and regional members made up of Municipal Separate Storm Sewer System (MS4) permittees. NMSA is devoted to supporting MS4 communities, helping them tackle stormwater challenges so that together we can achieve our vision of providing clean water for the nation.

Join the Alliance

Together we are working to solve the problems caused by urban runoff in order to provide the nation with cleant water.

Stormwater Events

There are many events in the stormwater sector at the national, regional, state, and local level. Check the NMSA Stormwater Events Calendar to find upcoming events of interest to MS4 professionals

Stormwater Job Board

The stormwater sector generates significant workforce potential. See the NMSA Stormwater Jobs Board for opportunities in design, construction, and maintenance of stormwater infrastructure.

Latest News

Read more +30 May 2023 By NMSA Admin in Free Access, News

Sewer Overflow and Stormwater Reuse Municipal Grant Program Comments to EPA and Letter to Congress

Read more +23 January 2023 By NMSA Admin in Free Access, News

NMSA, WEF Celebrate Federal Funding of Centers of Excellence for Stormwater Infrastructure Technologies

Read more +21 August 2022 By NMSA Admin in Free Access, News

NMSA Partners with Endeavor Business Media to Support StormCon 2022

Members

State members

Affiliate Members

8001 Forbes Places, Suite 211 Springfield, VA 22151

The National Municipal Stormwater Alliance (NMSA) is a 501(c)(3) devoted to supporting Municipal Separate Storm Sewer System (MS4) programs across the country. NMSA is the only national organization that is solely focused on the MS4 sector.

© 2024 National Municipal Stormwater Alliance. All Rights Reserved.

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