Email Updates
Click here ​​to subscribe to an email newsletter providing updates regarding MDE's general discharge permits.

General Discharge Permit

General Discharge Permit For Discharges from Mineral Quarries, Borrow Pits, and Concrete and Asphalt Plants
Maryland General Permit No. 15-MM

Determination for General Discharge Permit No. 15-MM (NPDES No. MDG49)

The 15-MM general permit became effective on May 1, 2017. 

​15-MM Permit 


Supplemental Information

10-MM Permit

Contact Info

If you have additional questions or would like more information, please contact the Wastewater Permits Program, Industrial & General Discharge Permits Division at 410-537-3323.

Additional Information and Related Links

​ ​

​​​​​​​​​​​​​​ ​​​ ​