"WSSC" is an abbreviation for the Washington Suburban Sanitary Commission, which is responsible for maintenance of storm-drain, sanitary sewer, and clean water piping systems in suburban Maryland, including Aspen Hill, Maryland.
Perhaps you would like to see their website?
Projects in Aspen Hill, Maryland
Perhaps you would like to see a listing of WSSC Maintenance Projects in Aspen Hill?
This is by no means a comprehensive nor authoritative listing and we beg pardon for any omissions.