Each year, there are numerous individuals within different Metro Departments that work toward achieving overall Municipal Separate Storm Sewer System (MS4) permit compliance. As a measure to ensure permit compliance within the various facets of Metro government, the National Pollutant Discharge Elimination System Section (NPDES) was created to oversee all MS4 permit compliance activities. The NPDES Office, which is a section within the Metro Water Services (MWS) Stormwater Division, is responsible for performing specific MS4 permit requirements such as public education activities, illicit discharge investigations, runoff /discharge sampling, construction site inspections, field screening inspections, industrial inspections, etc. In addition, the NPDES Office is responsible for coordinating with various other Metro Departments to ensure permit compliance measures are being followed on a Metro - wide basis.
Annual Report
MS4 NPDES Permit No. TNS068047 Permit Cycle 3, Year 13
(July 1, 2023 through June 30, 2024)
Annual reports from previous years
- Annual Report for Year Twelve, Permit Cycle 3 - 2023
- Annual Report for Year Eleven, Permit Cycle 3 - 2022
- Annual Report for Year Ten, Permit Cycle 3 - 2021
- Annual Report for Year Nine, Permit Cycle 3 - 2020
- Annual Report for Year Eight, Permit Cycle 3-2019
- Annual Report for Year Seven, Permit Cycle 3-2018
- Annual Report for Year Six, Permit Cycle 3 - 2017
- Annual Report for Year Five, Permit Cycle 3 - 2016
- Annual Report for Year Four, Permit Cycle 3 - 2015
- Annual Report for Year Three, Permit Cycle 3 - 2014
- Annual Report for Year Two, Permit Cycle 3 - 2013
- Annual Report for Year One, Permit Cycle 3 - 2012
- Annual Report for Year Eight, Permit Cycle 2 - 2011
- Annual Report for Year Seven, Permit Cycle 2 - 2010
- Annual Report for Year Six, Permit Cycle 2 - 2009
- Annual Report for Year Five, Permit Cycle 2 - 2008
- Annual Report for Year Four, Permit Cycle 2 - 2007
- Annual Report for Year Three, Permit Cycle 2 - 2006
- Annual Report for Year Two, Permit Cycle 2 - 2005
- Annual Report for Year One, Permit Cycle 2 - 2004
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