There are three categories of membership:

Agency Members are public agencies that have a National Pollutant Discharge Elimination System (NPDES) permitted treatment capacity of at least three million gallons per day (MGD) in the aggregate. Agency Members act through a designated representative who is a full-time staff member of the Agency.

Associate Members are public agencies that have an NPDES permitted treatment capacity of less than three MGD in the aggregate.

Consultant Members are corporations, partnership, or other business entities that have at least one office in Maryland or are under contract to perform work for an Agency Member.

For more information about membership, please contact Treasurer Kevin Lynch.