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NPDES Stormwater Multi Sector General Permit for Industrial Activities TNR050000

*** Important Update 07/20/2020***

New Tennessee’s general industrial stormwater discharge permit is known as the Tennessee Multi Sector Permit (TMSP) became effective on July 20, 2020, for a period of two years.

Tennessee’s 2015 TMSP reflected the 2015 federal Multi Sector General Permit (MSGP), which expired on June 4, 2020. EPA has proposed a 2020 MSGP that is fundamentally different from the previous permit and from Tennessee’s 2015 TMSP. The comment period for the federal MSGP ended June 1, 2020, and the final permit is not anticipated until November 12, 2020.

Rather than wait for EPA’s final 2020 permit to inform Tennessee’s 2020 TMSP, TDEC decided to reissue the 2015 TMSP, unchanged, for a term of two years. This will provide an opportunity to review the final federal MSGP prior to proposing any changes to the TMSP. Reissuing the 2020 TMSP for a two-year term will avoid impacting new industrial facilities who would be unable to receive permit coverage without an active TMSP in Tennessee.

If you DO NOT have coverage under the previous TMSP:

If you have reviewed the information on this page to confirm that you need coverage, please submit a completed Notice of Intent (NOI) and stormwater pollution prevention plan (SWPPP) to

If you have coverage under the current TMSP and plan to maintain it in the next permit cycle:

Do not submit a NOI for coverage under the new permit. Facilities covered under the previous permit will receive an updated Notice of Coverage (NOC) for the two-year reissuance period.

If you have coverage under the current TMSP but no longer need it:

Submit the appropriate documentation (No Exposure Certification Form or Notice of Termination) immediately. (see forms below)

2020 Notice of Determination and final TMSP general permit

This is a general NPDES permit required for facilities that have significant industrial materials exposed to rainfall and resulting stormwater.

TMSP Section 11 Sector Descriptions (Storm Water Discharges Associated With Industrial Activity From....) Summary Permit
A. Timber Products Facilities
A Summary 
B.  Paper And Allied Products Manufacturing Facilities
B Summary
C. Chemical and Allied Products Manufacturing Facilities
C Summary
D. Asphalt Paving and Roofing Materials and Lubricant Manufacturers
D Summary
E. Glass, Clay, Cement, Concrete, and Gypsum Product Manufacturing Facilities 
E Summary
F. Primary Metals Facilities
F Summary
G. Metal Mining (Ore Mining and Dressing) Facilities
H. Inactive Coal Mines Not Under SMCRA Bond and Inactive Coal Mining-Related Facilities
H Summary
I. Oil and Gas Extraction Facilities I Summary
J. Construction Sand and Gravel Mining and Processing and Dimension Stone Mining and Quarrying Facilities
J Summary
K. Hazardous Waste Treatment, Storage, or Disposal Facilities
K Summary
L. Landfills and Land Application Sites
L Summary
M. Automobile Salvage Yards
M Summary
N. Scrap Recycling and Waste Recycling Facilities
N Summary
O. Steam Electric Power Generating Facilities, Including Coal Handling Areas 
O Summary
P. Motor Freight Transportation Facilities (TF), Passenger TF, Petroleum Bulk Oil Stations and Terminals, Rail TF, and United States Postal Service TF
P Summary
Q. Water Transportation Facilities That Have Vehicle Maintenance Shops and/or Equipment Cleaning Operations
Q Summary
R. Ship and Boat Building or Repairing Yards
R Summary
S. Vehicle Maintenance Areas, Equipment Cleaning Areas, or Deicing Areas Located at Air Transportation Facilities
S Sampling
S Non-Sampling S
T. Treatment Works
T Summary
U. Food and Kindred Products Facilities
U Summary
V. Textile Mills, Apparel, and Other Fabric Product Manufacturing Facilities
V Summary
W. Wood and Metal Furniture and Fixture Manufacturing Facilities
W Summary
X. Printing and Platemaking Facilities X Summary X
Y.  Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Industries
Y Summary
Z. Leather Tanning and Finishing Facilities
Z Summary
AA. Fabricated Metal Products Industry
AA Summary
AB. Facilities That Manufacture Transportation Equipment, Industrial, or Commercial Machinery
AB Summary
AC. Facilities That Manufacture Electronic and Electrical Equipment and Components, Photographic and Optical Goods
AC Summary
AD. Facilities That Are Not Covered Under Sectors A Thru AC
AD Summary
AE. Facilities That Are Not Covered Under Sectors A Thru AC (no monitoring)
AE Summary
AF. Borrow Pits, Soil Harvesting Sites and Spoil Piles
AF Summary
Tennessee Storm Water Multi-Sector General Permit and associated Documents

This Page Last Updated: July 20, 2020 at 5:43 PM