The following procedures are in place to safeguard the health and safety of employees and the residents we serve. We appreciate you're understanding and assistance.

The Mattawoman Waste Water Treatment Facility is located at 5310 Hawthorne Road, La Plata, MD 20646.

Though we are a 24-hour facility the core operating hours are 7:00am - 3:00pm.

We are available by phone 24/7 for service-related concerns at 301-609-7400.

Divisions: Operations, Maintenance Support, Mattawoman & Technical Support

• All visitors entering the building must:
• schedule an appointment through the appropriate division office
• masks or facial coverings while in the building is optional