A public notice announcement thumbtacked to a bulletin board

The following public notices have been issued for currently open public comment periods and scheduled public meetings and public hearings. This list may include draft or proposed permits, rulemaking, state actions, plans, bond issues, tax proposals, public improvement projects and more. Please feel free to participate in any opportunities below that interest you. If you have questions about a specific public comment period or facility, please email or call the contact listed in the public notice. Hearing- and speech-impaired individuals may reach us through Relay Missouri at 800-735-2966 (Requires a device with a call dialing feature, such as a phone, or application with a "click-to-call" feature, such as Webex or Teams).

Please click on the specific public notice to access links to available electronic documents pertaining to that public notice and for information about how to submit written comments, if applicable. Some documents may not be available due to their file size. Other available documents may be quite large, which may result in long download times for individuals with slow internet connections. If you would prefer to review or obtain printed copies of the documents, please submit an Open Records/ Sunshine Law Request.

You can narrow down the number of public comment periods by using the filters below. To view closed public comment periods that ended within the last two years, use the date range fields. 

*This is an "and" type search. All criteria you enter must be met for the public comment period to appear. If you are not able to find the public comment period you are searching for, use less criteria.

Notice Areas of Focus Topic Start Date End Date Meeting/ Hearing Info
Chateau Lane Culvert Maintenance Proposed 401 Water Quality Certification Public Comment Period, May 28, 2026 to June 12, 2026
Water Protection Program
Water » Section 401 Water Quality Certification Proposed 401 Water Quality Certification
Section 401 Water Quality Certification
No public meeting or public hearing scheduled.
Rockwood Valley Middle School Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 29, 2026 to June 29, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Galena Abesvile School Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 29, 2026 to June 29, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Waterscape Subdivision Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 29, 2026 to June 29, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
MAWC Wardsville Northwest Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 29, 2026 to June 29, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Castaway Subdivision Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 29, 2026 to June 29, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
New London Water System Improvements Project Bid Opportunity, May 22, 2026 to June 24, 2026
Financial Assistance Center
Water » Drinking Water Bid Announcement
State Revolving Fund Project Bid Opportunities
Not Applicable
City of Springfield Group 8 Public Sanitary Sewer Rehabilitation Project Bid Opportunity, April 21, 2026 to June 9, 2026
Financial Assistance Center
Water » Wastewater Bid Announcement
State Revolving Fund Project Bid Opportunities
Not Applicable
Draft 2026 Monitoring Network Plan Public Comment Period, May 28, 2026 to June 27, 2026
Air Pollution Control Program
Air » Other Draft Monitoring Network Plan
Air Monitoring
No public meeting or public hearing scheduled.
Presidio Environmental Repository Final Sanitary Disposal Area Construction Permit Appeal Period, May 26, 2026 to June 25, 2026
Waste Management Program
Waste and Recycling » Solid Waste
Waste and Recycling » Landfills and Transfer Stations
Final Sanitary Disposal Area Construction Permit
Presidio Environmental Repository Facility
Not Applicable
Doe Run Viburnum Trend Aquatic Restoration Project Proposed 401 Water Quality Certification Public Comment Period, May 22, 2026 to June 8, 2026
Water Protection Program
Water » Section 401 Water Quality Certification Proposed 401 Water Quality Certification
Section 401 Water Quality Certification
No public meeting or public hearing scheduled.
Columbia Sanitary Landfill Draft Part 70 Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Air Pollution Control Program
Air » Pollutants and Sources Draft Part 70 Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
HydroAg-Cassville Storage Tank Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to July 1, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
Multiple Hearings Scheduled
O'Fallon Wastewater Treatment Plant Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
St. James Wastewater Treatment Plant Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
North Oak Wastewater Treatment Plant Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Pilot Travel Center 1323 Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Shady Oak RV and Mobile Home Park Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
City of Columbia, Boone County and University of Missouri Municipal Separate Stormwater Sewer Systems Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.
Perry Wastewater Treatment Facility Draft Missouri State Operating Permit Public Comment Period, May 22, 2026 to June 22, 2026
Water Protection Program
Water » Wastewater Draft Missouri State Operating Permit
Wastewater Permits
No public meeting or public hearing scheduled.