Tennessee Department of Environment and Conservation (TDEC) Division of Water Resources
U.S. Environmental Protection Agency (EPA) Region 4
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Tennessee is fully authorized by the U.S. Environmental Protection Agency (EPA) to administer the National Pollutant Discharge Elimination System (NPDES) program, including permit authority for stormwater discharges.
The state has adopted the federal Multi-Sector General Permit (MSGP) for industrial stormwater discharges. The state refers to the MSGP as the Tennessee Multi-Sector General Permit (TMSP).
The state also issues general permits for stormwater discharges from construction sites that disturb 1 or more acres of land, and for municipal separate storm sewer systems (MS4s). Tennessee's general permit for construction activities is similar to the federal construction general permit. However, the state also has provisions for Tennessee's water quality standards and total maximum daily loads (TMDLs) for siltation as conditions of the permit. See the national section EFFLUENT LIMITATIONS for more information about TMDLs.
See the national section STORMWATER—GENERAL for more information on the federal program, and the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES for information on the state requirements for these specific types of stormwater ...