Trick or Treatment

Join us for a hauntingly good time!

Come celebrate Halloween with an educational twist at our third annual Trick or Treatment event! Enjoy trick-or-treating at tables hosted by local environmental and community organizations while learning about wastewater treatment.

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

All goblins and ghouls are welcome!

If you would like to sign up as a community partner, click here Trick or Treatment 2025 Partner Registration

Date: October 25, 2025

Time: 10 a.m.-2 p.m.

Location: H.L. Mooney Advanced Water Reclamation Facility, 1851 Rippon Blvd. Woodbridge, VA 22195

Thank You to our 2024 Community Partners!

With your hard work and passion, nearly 700 attendees experienced the environmental leadership and community spirit of Prince William County!