About Surface Water Permitting

MassDEP's responsibilities under the National Pollutant Discharge Elimination System (NPDES).
Web page

Frequently Asked Questions

How to obtain various classes of NPDES permits.
Web page

Industrial Wastewater

MassDEP's Industrial Wastewater Management Program.
Web page

Surface Water (NPDES) Guidance and Policies

infiltration and Inflow management and more.
Web page

Surface Water (NPDES) Regulations

314 CMR 2.00, Permit Procedures; 314 CMR 4.00, Surface Water Quality Standards; 314 CMR 9.00, 401 Water Quality Certification (Dredging); and 310 CMR 30.00, Hazardous Waste Regulations relating to dredged material.
Web page

Stormwater

Stormwater management and permitting in Massachusetts.
Web page