Permits, certifications or fees may be required for the management, protection or improvement of Missouri’s waters and watersheds.

Public Drinking Water Systems
Public Drinking Water System permits and backflow testing
Wastewater Permits
Wastewater treatment facility permits, overflows, UIC and onsite systems
Stormwater Permits
Industrial stormwater, land disturbance and MS4s
Wastewater Construction and Engineering
Learn more about wastewater construction process and selecting an engineering consultant
Operator Certification
Training and certification for water and wastewater operators
Section 401 Water Quality Certification
Certification for section 401 of federal clean water act
Water Fees
Clean water and drinking water permit fees
Innovative Technologies
New processes and equipment for treating wastewater
Wells and Drilling
Well types, permitting and prenotification
Wastewater Pretreatment
Reducing pollutants in wastewater
Laws, Rules and Regulations
State and federal rules governing water quality
Public Notices
Provide input on draft permits, plans or rules on public notice
Find a meeting, hearing or event near you
Document Search
Search water related documents in one location for easy access

Contact Information