Washington Honored 125 Wastewater Facilities in 2025

The state recognized wastewater treatment plants for maintaining strict water quality and operational compliance.

Updated on Sept. 22, 2026 in Utilities

Wide shot of a wastewater treatment basin surrounded by lush evergreen trees in a misty landscape, representing industrial water quality compliance. — The Washington Department of Ecology recognized 125 wastewater treatment facilities for consistent compliance with water quality standards throughout 2025. AI Illustration. Upload story photo >

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The Washington Department of Ecology awarded 125 wastewater treatment facilities for their operational performance during 2025. These plants met rigorous standards for water quality monitoring, reporting timelines, and discharge limits to protect state waterways.

Why it matters

These awards recognize essential facilities for their role in protecting public health by preventing harmful pollutants from entering Washington water systems. The agency also highlighted a growing need for new, certified wastewater treatment workers to keep these critical systems operational.

The state awarded 125 out of more than 300 total wastewater facilities for meeting all permit discharge limits in 2025. Notable performers included Port Townsend with 30 consecutive years of compliance, Salmon Creek with 19, and Klickitat PUD with 18.

The players

Washington Department of Ecology

This state agency oversees environmental protection and ensures that municipal utilities maintain compliance with water quality regulations.

City of Port Townsend Wastewater Treatment Facility

This municipal facility holds the longest streak of consistent performance awards in the state with 30 consecutive years of recognition.

The details

Award-winning facilities utilize complex physical, chemical, and biological filtration processes to purify municipal wastewater before it is released. The recognition process mandates that these plants meet all numeric effluent limits and maintain consistent monitoring throughout the entire calendar year.

Facilities achieved total compliance for the 2025 award period.

Market Landscape

The state award program reinforces the federal oversight and discharge standards established under the Clean Water Act. These facilities function as the primary infrastructure ensuring that regional growth remains compatible with strict environmental protections.

Residents benefit from these awards because they signal that local utilities are successfully preventing pollutants from entering shared water bodies. Maintaining these high standards helps ensure the long-term safety and quality of water in surrounding communities.

The takeaway

Reliable wastewater treatment is a silent but critical component of public infrastructure that requires ongoing operational vigilance. As the industry faces a shortage of certified workers, the success of these 125 plants highlights the importance of maintaining a skilled workforce to protect public health.