
Wastewater Needs Assessment
The Water Boards Wastewater Needs Assessment (WWNA) is a four-year project, beginning July 2023, to provide information on California’s wastewater sanitation system needs. The WWNA an outcome from State Water Board Resolution No. 2022-0019 and Resolution No. 2016-0010, recognizing Californians’ equal and human right to sanitation and that safe wastewater management is critical to human and environmental health.
The WWNA does not impose any permitting requirements, consolidation projects, or fees for regulatory or governing agencies, businesses, or people of the public. The WWNA intends to provide:
- a statewide list of wastewater infrastructure priority projects for potential funding sources, and
- the first statewide gap analysis of wastewater infrastructure to inform Water Board and state decisions on regulatory and resource investment priorities.
For more information, please read the one-page WWNA project description / descripción del proyecto de la WWNA.
This webpage will be periodically updated.
News & Meetings
- Public Notice for the next four Wastewater Needs Assessment (WWNA) Advisory Group meetings in 2026 are scheduled on January 30 (recording), April 24 (recording), July 31 (recording), and October 30.
- El aviso público para las próximas cuatro reuniones del Grupo Asesor de Evaluación de Necesidades de Aguas Residuales (WWNA) en 2026 está programado para el 30 de enero, el 24 de abril, el 31 de julio y el 30 de octubre.
- Past Advisory Group Meeting agenda and materials, including the member list, are available on the University of California Los Angeles Luskin Center for Innovation WWNA webpage. The agenda for the upcoming meeting will be publicly available no later than one business day before the scheduled WWNA Advisory Group Meeting.
- La agenda y los materiales de las reuniones anteriores del Grupo Asesor, incluida la lista de miembros, están disponibles en La Página web de la WWNA del Centro Luskin para la Innovación de la Universidad de Los Ángeles de California. La agenda de la próxima reunión estará disponible públicamente a más tardar un día hábil antes de la reunión programada del Grupo Asesor de WWNA.
Reports
- Phase 1 complete report documenting data, methods, and preliminary findings to guide investment strategies.
- Informe completo de la Fase 1 que documenta datos, métodos y hallazgos preliminares para orientar las estrategias de inversión.
Resources & Tools
Stay informed
Email Subscription List
To receive updates, subscribe to our Wastewater Needs Assessment list!
Contact Us
- General Inquiries
WWNA@waterboards.ca.gov - For questions on financial assistance
DWQ-WDR@waterboards.ca.gov


