Maryland's Municipal Separate Storm Sewer System (MS4) program is one of the most comprehensive in the Mid-Atlantic region. Administered by the Maryland Department of the Environment (MDE), the program requires municipalities, counties, and certain state and federal agencies to obtain permits for their stormwater discharges.
MS4 permits in Maryland typically require: development and implementation of a stormwater management program, annual reporting on pollutant reduction activities, regular inspection and maintenance of stormwater facilities, public education and outreach programs, and illicit discharge detection and elimination.
Property owners within MS4 jurisdictions must ensure their stormwater facilities are properly maintained and inspected. Failure to comply can result in enforcement actions from MDE, including fines up to $10,000 per day per violation.
Key compliance steps include: scheduling regular inspections (annually at minimum), maintaining detailed maintenance records, addressing identified deficiencies within prescribed timeframes, and submitting required documentation to the appropriate jurisdiction.
Working with a certified stormwater management company like Skyline Stormwater ensures your facilities meet all MS4 requirements. Our team handles inspections, documentation, maintenance scheduling, and regulatory liaison, giving you peace of mind and full compliance.