WEAO 2025

The official mobile app for the 2025 WEAO Technical Symposium and OPCEA Exhibition The Water Environment Association of Ontario (WEAO) is an incorporated, not-for-profit, technical association of approximately 1200 environmental engineers, scientists, operators, and others from consulting companies, municipalities, industry, equipment suppliers, and government agencies. The annual Technical Symposium and OPCEA Exhibition brings together over 500 delegates from the wastewater industry to share ideas and experiences and to provide an opportunity for learning and networking. The Technical Symposium offers high quality papers submitted and presented by leading experts within our industry while the latest and greatest water technology can be seen showcased at the OPCEA Exhibition.