Prince William Water is hosting its fourth annual Trick or Treatment this Saturday, Oct. 24, from 10 a.m. to 2 p.m. at the H.L. Mooney Advanced Water Reclamation Facility, 1851 Rippon Boulevard, in Woodbridge.
The free event includes Halloween-themed activities and trick-or-treating at tables hosted by local environmental and community organizations. Attendees can learn about wastewater treatment and take a tour of the facility. Costumes are optional but encouraged. The utility asks people not to wear costumes that could be considered offensive or that include weapons.