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Prince William Water’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.

Prince William Water has teamed up with Ulliman Schutte Construction to transform the H.L. Mooney Advanced Water Reclamation Facility. What began as a simple project to cover our clarifier basins evolved into a full-scale design-build initiative—driven by our commitment to better serve the community. Want to see how this vision is coming to life? Watch our full video below to learn more about the exciting work shaping the future of water reclamation.

For more information about the project, watch The Vision Behind the H.L. Mooney Advanced Water Reclamation Facility Upgrades.

The Bull Run Mountain Well Upgrades Project is to improve the drinking water supply available to its current and potential future customers residing within our area of service on Bull Run Mountain and at Evergreen. This includes customers who live in Bull Run Mountain Estates and near Evergreen Country Club.

Engineering and hydrogeological analyses began in early 2019. Construction of new wells and piping that will be required to connect these wells to our distribution system is expected to start in 2026 with a one- to two-year schedule for completion.

• Improve the well system to ensure adequate water supply, which may involve rehabilitation of existing wells and/or construction of new wells; and
• Enhance the quality of the water delivered to our customers.

The Montclair/Four Seasons Water System Improvements Project provides improved reliability to Montclair, Four Seasons, Brittany, and Southlake, as well as commercial areas and neighborhoods along Dumfries Road. The project's three main components include a Booster Pumping Station, Supply Main, and Discharge Mains.