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NPDES Permits


National Pollutant Discharge Elimination System (NPDES) Permit

Persons discharging pollutants directly from point sources into surface waters of the state must obtain an NPDES discharge permit from the Tennessee Division of Water Resources.

NPDES Stormwater Permitting Program

All programs under the NPDES Stormwater Program to include construction, industrial, Municipal Separate Storm Sewer System (MS4) and the Tennessee Qualifying Local Program (QLP).

Discharges of Filter Backwash and Sedimentation Basin Washwater from Water

Any individual who discharges filter backwash and sedimentation basin washwater from water treatment plants to the waters of Tennessee must obtain an NPDES permit for such discharge.

Hydrostatic Test Water NPDES General Permit

Any individual who discharges hydrostatic test water to the waters of Tennessee must file for coverage under the Division of Water Resources General NPDES Permit for Discharges of Hydrostatic Test Water.

NPDES General Permit for Application of Pesticides

Point source discharges of biological pesticides, and chemical pesticides that leave a residue into waters of the state were determined to be pollutants under the Clean Water Act (CWA). 

Ready Mixed Concrete NPDES General Permit

The operator of a ready mix concrete facility with discharges of washwater, stormwater, or a no-discharge recycle system must file for coverage under the Division of Water Resources General NPDES Permit for Discharges of Storm Water Runoff and Process Waste Water Associated with Ready Mix Concrete Facilities.

Underground Storage Tank Remediation NPDES General Permit

Any individual who discharges groundwater associated with remediation of contaminated groundwater at an underground storage tank must obtain an NPDES permit for such discharge. 

NetDMR and Electronic Reporting

The NPDES Electronic Reporting Rule replaces most paper-based NPDES reporting requirements, including Discharge Monitoring Reports (DMRs), with electronic reporting.