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Cowlitz County, WA

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Stormwater Reports

We track our compliance with the NPDES permit and submit annual reports. These are available here for your review...

2021 Annual Report (PDF)

2020 Annual Report (PDF).

2019 Annual Report (PDF)

2018 Annual Report (PDF)

2017 Annual Report (PDF)

2016 Annual Report (PDF)

2015 Annual Report (PDF)

2014 Annual Report (PDF)

2012 Annual Report (PDF)

2011 Annual Report (PDF)

2010 Annual Report (PDF)

2009 Annual Report (PDF)

2008 Annual Report (PDF)

2007 Annual Report (PDF)

  1. Rural Stormwater - Chapter 16.20
  2. Urban Stormwater - Chapter 16.22
  3. Stormwater Program
  4. Stormwater Reports
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