Title

Springfield Water and Sewer Commission for New West Parish Filters Water Treatment Plant

Document Number

N2025251

Document Type

CATEX

Project Description

WPF Facility Improvements Design & Construction: New DAF Process and Treatment Plant - This project includes the installation of a new 80 million gallon per day (MGD) Dissolved Air Flotation (DAF) clarification process designed to reduce total organic carbon in the treated water. The DAF process was evaluated and selected through a multi-season piloting study. A new facility is proposed to house the DAF process, filters, and new chemical feed systems for coagulation, corrosion control, and disinfection. The new processes would replace the existing bulk chemical storage facility and allow SWSC to replace the existing chlorine gas system with a sodium hypochlorite system, eliminating the risk associated with the use of chlorine gas. Sizing the new water treatment plant at 80 MGD will allow for the elimination of the existing Slow Sand Filters. The project also includes on-site electrical distribution system improvements required to support the upgrades. Raw Water Feed Pipelines Upgrade – A 60-inch bypass around the existing Control House is proposed to provide a secondary route of source water conveyance to the new water treatment facility. The existing Control House is corroded, aging, space limited, and presents code considerations for any new work within this building. Replacement of the existing twin 42-inch raw water pipelines from the Sedimentation basin to WPF with 60-inch diameter pipes is proposed. The larger diameter mains can be expected to reduce the head loss to help improve the plant hydraulic capacity.

EPA Region/Headquarters Office

1

State or Territory

MA

Point of Contact

Camilla Kuo-Dahab

kuodahab.camilla@epa.gov

Date of Issuance

2025-04-28 00:00:00.0

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