General Discharge Permit

General Permit For Discharges of Stormwater Associated With Industrial Activity
Maryland General Permit No. 12-SW 

Important Announcement

  • The Department has issued a new general permit for discharges of stormwater associated with industrial activity, effective January 1, 2014. This permit replaces Maryland General Permit No. 02-SW.

  • A summary of the new permit requirements can be found here..



Guidance Documents

Supplemental Information

Contact Info

For more information on this permit, contact the Industrial and General Permits Division at (410) 537-3323.

Additional Information and Related Links