Documents and Reports

MS4 Permit Annual Reports

• 2024 MS4 Permit Report
• 2023 MS4 Permit Report
• 2022 MS4 Permit Report
• 2021 MS4 Permit Report
• 2020 MS4 Permit Report
• 2019 MS4 Permit Report
• 2018 MS4 Permit Application Package
• 2017 MS4 Permit Report
• 2016 MS4 Permit Report   
• 2015 MS4 Permit Report   
• 2014 MS4 Permit Report   
• 2013 MS4 Permit Report   
• 2012 MS4 Permit Report   
• 2011 MS4 Permit Report   
• 2010 MS4 Permit Report   
• 2009 MS4 Permit Report   
• 2008 MS4 Permit Report