California Water Environment Association
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CWEA empowers wastewater professionals as they protect California's most critical resource: water. Our community of 10,000+ professionals represent all facets of wastewater management and resource recovery, from operators to lab techs to engineers. Founded in 1928, CWEA proudly unites professionals from throughout the state. We address real-time issues, develop and deliver cutting-edge training, raise awareness of the profession and shape the future of wastewater.

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CWEA P3S Conference 2025 52nd Annual Pretreatment, Pollution Prevention, and Stormwater (P3S) Conference 2/3/2025 - 2/5/2025 CWEA Annual Conference 2025 Annual Conference of California Water Environment Association & Expo 4/22/2025 - 4/25/2025 CWEA P3S Conference 2026 53rd Annual Pretreatment, Pollution Prevention, and Stormwater (P3S) Conference Dates: TBD CWEA Annual Conference 2026 Annual Conference of California Water Environment Association & Expo Dates: TBD

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