The National Pollutant Discharge Elimination System (NPDES) permit program is administered by the US EPA and MassDEP. The NPDES program controls water pollution by regulating point sources that discharge pollutants to surface waters.

State-Specific Discharge & Toxicity Reporting
NPDES Authorization
Policies & Guidance
NPDES General Permits
Surface Water Discharge (NPDES Individual) Permits
US EPA NPDES Resources

NPDES State-Specific Discharge & Toxicity Reporting

NPDES Authorization

NPDES Regulations

Policies & Guidance

Several MassDEP program areas have policies and guidance documents that relate to NPDES permitting: surface water, combined sewer overflows, residuals, sewer collection systems, and stormwater.

Surface Water Policies & Guidance

Combined Sewer Overflows Policies & Guidance

Residuals & Biosolids Policies & Guidance

Sewer Collection Systems Policies & Guidance

Stormwater Policies & Guidance

Surface Water Discharge Permit Forms (NPDES General Permits)

Surface Water Discharge (NPDES Individual Permit) Forms

US EPA NPDES Resources