Halloween themed header graphic displaying date and time of Trick Or Treatment. Saturday, October 26, H.L. Mooney Advanced Water Reclamation Facility, 10 a.m.-2 p.m.

Attention boys and ghouls!

Do you want to celebrate Halloween while you learn about the environment and get to do fun activities? Look no further! Prince William Water is hosting the annual Trick or Treatment event from 10 a.m. to 2 p.m. on Saturday, October 26, at the H.L. Mooney Advanced Wastewater Reclamation Facility in Woodbridge.

Trick-or-treat your way around tables hosted by local environmental organizations, learn about wastewater treatment and the environment, and have a chance to take a tour of a real wastewater facility. Trust us-it's cool!

Costumes are optional but encouraged! Please refrain from any costumes that may be seen as offensive or include a weapon.

Additional parking is available at 15311 Forest Grove Dr, Woodbridge, VA 22191. Free shuttle service provided. Shuttle service for the Trick or Treatment Event will be available from 10 a.m.-2:30 p.m.

All goblins and ghouls are welcome!

Watch this page for more spine-chilling 2024 event information!

 

Calling All Community Partners!

Is your environmental or community organization looking for a way to connect with the Prince William County community? Sign up now to host a table at the Trick or Treatment open-house event!

 

Sign Up to be a Partner!

Thank You to our 2024 Trick or Treatment Partners!

Partner logos for 2024 Trick or Treatment event

Photography and videography will take place at the event. By attending, you consent to photos and videos featuring your likeness being used in Prince William Water internal and external publications, websites and social media.