Trick or Treatment

Children gather in Halloween costumes in front of a spooky banner that reads "Trick or Treatment"

Join Us for a Hauntingly Good Time!

Come celebrate Halloween with an educational twist at our 4th 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 that include a weapon.

All goblins and ghouls are welcome!

If you would like to sign up as a community partner, fill out our registration form: Trick or Treatment Partner Registration 

Date: October 24, 2026
Time: 10 a.m.-2 p.m.
Location: H.L. Mooney Advanced Water Reclamation Facility, 1851 Rippon Blvd. Woodbridge, VA 22195

 

2025 Trick or Treatment Photos

  • A child visits a table at a Halloween-themed event
  • Individuals in costume gather at a Halloween-themed event
  • People play games outside on a sunny day
  • A child in a costume sits on a bench next to an inflatable ghost
  • Individuals in costume gather at vendor tables at a Halloween-themed event