Tennessee's Total Maximum Daily Load (TMDL) Program

Introduction

Section 303(d) of the Clean Water Act requires states to develop TMDLs for those waterbodies not attaining water quality standards. The objective of a TMDL is to allocate loads among all of the known pollutants sources throughout a watershed so that appropriate control measures can be implemented and water quality standards can be achieved.

The TMDL process quantifies the amount of a pollutant that can be assimilated in a waterbody, identifies the sources of the pollutant, and recommends regulatory or other actions to be taken to achieve compliance with applicable water quality standards based on the relationship between pollution sources and instream water quality conditions. A TMDL can be expressed as the sum of all point source loads (waste load allocations), nonpoint source loads (load allocations) and an appropriate margin of safety, and is represented by this relationship:

TMDL = Sum of Point Sources + Sum of Nonpoint Sources + Margin of Safety

More information is available on the EPA web site.

Proposed TMDLs

None at this time. 

↑Comments on any above proposed TMDL reports may be submitted through the indicated dates, directly via our WEB FORM, or in writing to the address provided in the public notice document. ↑ 

If you would like to receive a notification e-mail when a TMDL is placed on public notice, please e-mail Regan.McGahen@tn.gov to be added to our e-mail distribution list.

Advance Restoration Approach Documents:

• 5-alt REPORT FOR GAP CREEK IN THE WATAUGA RIVER WATERSHED (06010103)(Accepted by EPA on September 26, 2019)
• 5-alt REPORT FOR UNNAMED TRIBUTARY TO SHELTON CREEK IN THE SEQUATCHIE RIVER WATERSHED (06020004) (Accepted by EPA on February 14, 2019) 
• 5-alt REPORT FOR CROOKED FORK AND FLAT FORK IN THE EMORY RIVER WATERSHED (06010208) (Accepted by EPA on October 12, 2018)
• 5-alt REPORT FOR VALLEY BRANCH AND BUZZARD CREEK SUBWATERSHEDS IN THE RED RIVER WATERSHED (Accepted by EPA on June 15, 2018)
  
• 5-alt REPORT FOR BEAVER CREEK IN THE LOWER CLINCH RIVER WATERSHED (06010207)  (Accepted by EPA on June 16, 2017)