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Stormwater Management
Regulations and Ordinances
Regulations and Ordinances
The City of O'Fallon is regulated and permitted by the Missouri Department of Natural Resources to operate our storm water conveyance system under the NPDES Phase II, MS4 Permit. This permit requires the City to establish a program to reduce pollutants through public education and outreach, public participation and involvement, maintenance of construction site runoff, implementation of Best Management Practices (BMPs), and the reduction of illicit discharges.
The City works with residents, business owners, builders and developers to increase their awareness of water quality issues and encourage them to do their part to keep our storm system and streams clean.
- Erosion and Sediment Control (PDF)
- Grading Ordinance (PDF)
- Section 405.240 - Stormwater Detention Ordinance (PDF)
- Stormwater Management Quality and Illicit Discharge (PDF)
- Post-Construction BMP Ordinance (PDF)
- Weekly Land Disturbance Checklist (PDF)
- Stormwater Annual Report-MS4s (PDF) - June 13, 2010 through
June 12, 2011
Please note: Appendices are available upon request
Environmental Compliance
The City of O'Fallon is regulated and permitted by the Missouri Department of Natural Resources to operate our storm water conveyance system under the NPDES Phase II, MS4 Permit. This permit requires the City to establish a program to reduce pollutants through public education/outreach, public participation and involvement, maintenance of construction site runoff, implementation of Best Management Practices (BMPs), and the reduction of illicit discharges.
The City works with residents, business owners, builders and developers to increase their awareness to water quality issues and encourage them to do their part to keep our storm system and streams clean.
To learn more about the NPDES Phase II permit and program, click on the documents below:
- Permit Application
- Permit Application Renewal
- Form M
- Cover
- Introduction
- NPDES Permit 2008-2013
- Appendix A
- Appendix B
- MCM 1 - Public Education and Outreach on Stormwater Impacts
- MCM 2 - Public Involvement/Participation
- MCM 3 - Illicit Discharge Detection and Elimination
- MCM 4 - Construction Site Storm Water Runoff Control
- MCM 5 - Post-Construction Runoff Control
- MCM 6 - Municipal Good Housekeeping and Pollution Prevention
- Appendix C - Storm Sewer Map | Creek Outfall Map
- Appendix D
- Copies of Permits
Other resources
- Stormwater Policy (PDF)
- Stormwater Procedures Flowchart: Blockages, Detention, Swales (PDF)
- Stormwater Procedures Flowchart: Flooding, Erosion, Drainage (PDF)
- Stormwater Procedures Flowchart: Illicit Discharges (PDF)