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First year of membership is complimentary!

membership information


Regional water and wastewater organizations of all sizes and ownership types are invited to become ARWO members.

Eligible organizations are drinking water and/or wastewater systems that do at least ONE of the following:

  • Serve a population base across political jurisdictions.
  • Sell water to, or purchase water from, a consecutive system.

Membership Dues: Annual member dues are based on the service population of the system applying for membership.


Affiliate membership is available to organizations, companies, and individuals. This is a great opportunity to connect with regional utility managers.

  • Advocacy
  • Newsletter
  • Webinars
  • Collaboration
  • Effective utility management
  • Educational Resources

First year of membership is complimentary!


Mailing Address

Physical Address

Organization Contact Information

Member Type and Dues

Member (regional water or wastewater sytsem*)
This consists of the number of individuals (not accounts) you serve, including those of utilities to which you sell water and provide contract operation services. The service population is calculated by multiplying any direct accounts by 2.5 (persons/account) and adding the population for any secondary or contracted systems to the direct accounts.

Dues for members are based on the service population of the system applying for membership.

To calculate your dues, multiply your service population by $.04, except that the minimum dues amount is $500 and the maximum is $5,000.
 A regional system is one whose service area(s) crosses political jurisdictions, or sells water to, or purchases water from, a consecutive system. 

Affiliate Member (Individual or organization)

Dues: $1,000

We strongly encourage member involvement on one or more ARWO committees. Please indicate your interests:


We subscribe to the mission of the Association of Regional Water Organizations as provided for in the Association’s bylaws.

we’re here to sHARE the SUCCESS secrets with you.