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Project Construction

Planning, design, and construction of a new drinking water treatment facility of this size is a complex and lengthy process (the original design and construction of Borden Brook Reservoir, Cobble Mountain Reservoir, and West Parish Filters took more than 30 years). The Commission is accelerating and advancing this process as quickly as possible with plans to complete construction in 2028.

Starting October 2024:

Demolition and construction on your new water treatment plant

Project Schedule: Demolition of current plant from mid-2024 through 2025, Construction of new plant 2026 to mid-2028.

Facility Video Fly-Through

Watch our fly-through video for a detailed, 3D rendering of the new West Parish Water Treatment Plant.

Phase 1 Construction

Started 2021 and was completed in 2023.

Clearwell and Backwash Pump Station Replacement

The replacement of the existing 1925 clearwell and 1974 backwash pumps with more modern, efficient, and reliable equipment is now complete. Construction of a new Backwash Facility, which includes a new clearwell and backwash pumps, was completed in November 2023. This will allow treatment and delivery of drinking water to continue while the new plant is under construction.

Proud Partnership

This project is collaborative effort between Hazen and Sawyer and The Walsh Group. The companies are, respectively, responsible for design & engineering oversight, and construction of the project.

Hazen and Sawyer Logo

Project Design & Engineering Oversight

Walsh Construction Logo

Project Construction

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