Governing Law and Regulations
Massachusetts Department of Environmental Protection (DEP) Bureau of Resource Protection Watershed Management Division
DEP Bureau of Waste Prevention
U.S. Environmental Protection Agency (EPA) Region 1
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Wastewater discharges in Massachusetts are subject to both federal and state permit requirements. Applications for National Pollutant Discharge Elimination System (NPDES) permits are submitted to and approved by both EPA and DEP. See the state section NPDES PERMIT for more information.
Any NPDES permit applicant may request a variance from an effluent limitation or a thermal component of any discharge under certain circumstances. Massachusetts has adopted the federal requirements for the fundamental different factors (FDF) variance. However, Massachusetts has additional rules for thermal discharge variances, including screening and consultation requirements. See the national section WASTEWATER VARIANCES for more information on wastewater variances.
• Administration and enforcement. EPA and DEP share responsibility for the administration and enforcement of the state's NPDES permit program and any variances processed under the program.
314 CMR 3.10
DEP accepts variance requests from publicly owned ...