General Permit for Stormwater Associated with Construction Activity
General Permit For Discharges of Stormwater Associated With Construction Activity
Maryland General Permit No. 20-CP
NOTICE - Permit Issued (effective April 1, 2023)
The Department has issued the final renewal permit for the General Permit for Discharges from Stormwater Associated with Construction Activity, effective April 1, 2023. Existing permittees (registered under the previous 14-GP permit) must submit a Notice of Intent no later than September 30, 2023 to prevent a lapse in coverage.
Upcoming Training Opportunities
The Department is offering free
training opportunities to any party interested in learning more about the 20-CP General Permit. If you are an operator for a construction project which was registered under the previous 14-GP permit, are an operator for a proposed construction project, or prepare permitting documents on behalf of such an operator, you are strongly encouraged to attend. The dates for currently-scheduled events are presented below. Please click on the respective link to sign up to attend the training.
- DATES TO BE DETERMINED. Check back for updates. (Links to sign up will be posted here once dates are selected.)
20-CP Permit Information
- The Notice of Intent (NOI) for this General Permit is submitted electronically through the ePermits website, as are Notices of Termination, Transfers, and the Declaration of Intent (DOI - for the 14-GP).
- The NOI and DOI (for the 14-GP) must be electronically signed by the person in authority from the developer or builder; however, the system will allow agents and consultants to prepare any part of the NOI necessary, then send it to the person who will submit it as the responsible party.
- Federal regulations require that applicants must submit certain information to MDE to validate their authorization to submit an NOI on behalf of a responsible party. To meet this requirement, MDE developed a Subscriber Agreement Template Form (.doc, pdf).
- Technical issues with the system should be submitted to the technical support team via the 24/7 Support link at the top of the system screen.
- Public Notification Period - When NOIs (with a signed DOI for the 14-GP) are submitted to MDE, a 14 day Public Notification Period is initiated and information is published on MDE's website. Interested parties may review NOIs during the public notification period. Please contact the appropriate Erosion and Sediment Control (E&SC) authority to review plans. Interested parties may submit concerns about the E&SC to the approval authority and to MDE. Concerns should be supported by a detailed, written explanation as to why the E&SC Plan fails to meet State standards.
- Construction Activity Inspection Form (.doc, pdf)
- Emergency Authorization Request Form
- Request for Cationic Chemical Additives Form
- 20-CP Appendix D - Turbidity Reporting Form
If you have additional questions or would like more information, please contact the Industrial Stormwater Permits Division at (410) 537-3323.
Previous Permit (14-GP)
Additional Information and Related Links