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Southtowns Advanced Wastewater Treatment Facility Expansion Project

diagram of Southtowns plant expansion

Downloadable PDF of the Southtowns Plant Expansion figure. Phase 1 improvements in red, Phase 2 improvements in blue.

Erie County Sewer District No. 3 has commenced a major expansion of the Southtowns Advanced Wastewater Treatment Facility (AWTF).  The below summary and technical documents provide an overview of this multi-phase construction project – estimated to approach $200 million – that will continue Erie County’s commitment to protecting public health, protecting the environment, and supporting the needs of the local community for decades to come.

Construction for the first phase of the project was completed in Summer 2026, at a total cost of approximately $60 million. Phase 2 of the Southtowns AWTF Expansion Project has been designed and is scheduled to be advertised for construction bids in September 2026.

Summary Article of the Expansion: The Southtowns Advanced Wastewater Treatment Facility- Past and Future 

For the Technical Details: Open House Project Overview   and Open House Presentation 
 

Note – the dates are approximately one year ahead of the anticipated schedule. Additionally, there have been some recent changes, such as the relocated ORF pipe already being completed.

Construction Update (September 2024)

Construction Update (September 2025)

Construction Update (September 2026) - coming soon

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