Annual Reports/NOIs

NH Small MS4 Yearly Requirements

• MS4 Year 1 Requirements– EPA Document
• MS4 Year 2 Requirements Table
• MS4 Year 3 Requirements Table
• MS4 Year 4 Requirements Table for Existing Permittees
• MS4 Year 4 Requirements Table for New Permittees
• Year 4 MCM #1 Outreach Matrix
• Year 4 Annual Requirements Checklist for Existing Permittees 
• MS4 Year 5 Requirements Table for Existing Permittees
• MS4 Year 5 Requirements Table for New Permittees
• MS4 Year 5 MCM #1 Outreach Matrix
• MS4 Year 6 Requirements Table for Existing Permittees
• MS4 Year 6 Requirements Table for New Permittees
• MS4 Year 6 MCM #1 Outreach Matrix

2023 Annual Report Templates and Guidance

• EPA NH Annual Report Template Year 5 for Existing Permittees** (Updated 08/31/2023)
• EPA NH Annual Report Template Year 5 for Existing Permittees Annotated
• EPA NH Annual Report Template Year 5 for New Permittees** (Updated 08/31/2023)
• EPA NH Annual Report Template Year 5 for New Permittees Annotated
• NH Stormwater Coalition Annual Report Template Year 5 for Existing Permittees (On 8/17/2023, additional instructions were added to the IDDE Program Plan attachment within the "Small MS4 Authorization" section as well the "Street Design and Parking Lots Report" and "Green Infrastructure Report" sections in MCM #5.)
• NH Stormwater Coalition Annual Report Template Year 5 for New Permittees (On 8/17/2023, additional instructions were added to the IDDE Program Plan attachment within the "Small MS4 Authorization" section.)
• Guidance Document for NH Stormwater Coalition Annual Report Templates
• FAQ and Tips and Tricks – Year 5 Annual Report Templates

**Important Note: To open the EPA Year 5 Annual Report templates, right click on the link and choose "save link as". This will allow you to save the template and open it on your computer.