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H.L. Mooney Advanced Water Reclamation Facility Wide Improvements

Webpage Updated 5/10/24

Project Manager

Shannon Spence, P.E.

Project Description 

The Service Authority’s award-winning H.L. Mooney Advanced Water Reclamation Facility (AWRF) in Woodbridge treats up to 24 million gallons of wastewater daily, meeting or exceeding federal and state standards. After treatment at Mooney AWRF, the reclaimed wastewater is released into Neabsco Creek, a tributary of the Potomac River. 

This infrastructure project is designed to improve operational resiliency and service levels, provide additional odor control, and allow the plant to continue meeting regulatory requirements. Project elements include enhancements to several areas of the Mooney facility: primary clarifier odor control upgrade; primary clarifier collection system improvements; primary clarifier electrical improvements; equalization basin modifications; Return Activated Sludge Building pump modifications; additional Ultraviolet equipment; yard valves replacement; supplemental carbon system improvements; alkalinity system upgrades; ferric system improvements; secondary clarifier improvements; plant structural protection and refurbishment.

The H.L. Mooney Advanced Water Reclamation Facility Wide Improvements Project groundbreaking ceremony was held on December 6, 2023.

Project Activities

The Public Information Meeting and Project Tour occurred on May 6th. Presentation slides used during the meeting are now available in the project document section above for your reference.

In the News:

Service Authority Breaks Ground on $184M Construction Project at Mooney Wastewater Facility (Prince William Living)

Heads Together: Engineers and Operators Plan a Huge Upgrade (Treatment Plant Operator)

Connolly tours Woodbridge wastewater plant, promotes $2.1 trillion spending bill

Service Authority Wastewater Facility Earns 13th Consecutive National Regulatory Compliance Award (Prince William Living)

Prince William County Service Authority $200 Million Mooney Water Reclamation Facility upgrade underway (Potomac Local News)

Mooney Facility Wide Improvement Project is registered to meet the sustainability criteria in the Envision framework.