Department staff talking one-on-one with individuals at a meeting

The Per- and Polyfluoroalkyl Substances (PFAS) Workgroup is a stakeholder workgroup made up of representative from the department and Missouri experts in the fields of wastewater, stormwater, drinking water, chemistry, analytical methods and environmental advocacy. The department's Water Protection Program began this workgroup to tackle issues relating to PFAS, in response to stakeholder concerns regarding this emerging contaminant. The main workgroup will be dedicated to developing policies and tools regarding PFAS, while smaller sub-workgroup will be covering specific topics affected by PFAS.

For general information about PFAS and on-going actions the department and EPA are taking to address concerns, visit Per- and Polyfluoroalkyl Substances (PFAS).


Attendance at these meetings may be in person, by conference call or through Webex. The department will attempt to correct technical difficulties as they arise, but the department cannot guarantee the quality of the Webex or conference call option. The meeting will not be subject to change or repeat due to any technical difficulties.

If there are issues you would like to discuss during the meeting, you will need to notify the department before the meeting. You can do this by emailing the staff coordinator noted below. Individuals requiring special services or accommodations in order to attend a meeting can make arrangements by contacting the staff coordinator at least 48 hours before the meeting. Hearing- and speech-impaired individuals may contact the staff coordinator through Relay Missouri at 800-735-2966. Translation or interpretation services will be provided upon request at no charge. Call 573-522-9395 for assistance.

Staff Coordinator: John Hoke, Water Protection Program,, 573-522-9912

Upcoming Meetings

There are no new meetings currently scheduled. Please check back, because we anticipate new information soon!

Past Meetings

Lewis and Clark State Office Building with virtual option offered
Jefferson City, Missouri
Video Attendance Available!
More Info:
Join the Dec. 6 meeting using Webex
Additional Materials:
Per- and Polyfluoroalkyl Substance (PFAS) Workgroup Meeting Presentation by MoDNR, Dec. 6, 2023
Drinking Water Maximum Contaminant Levels and Source Water Protection
Water Quality Standards: Per- and Polyfluoroalkyl Substances (PFAS) Sub-Workgroup Final Summary
PFAS Removal and Destruction Technologies Subgroup
PFAS Sampling: Trends and Procedures Subgroup
PFAS Funding Subgroup Fact Sheet
Technologies for Removal and Destruction of PFAS Compounds
Water Treatment Technologies-Granulated Activated Carbon
Water Treatment Technologies-Ion Exchange
Water Treatment Technologies-Membrane Technologies: Nanofiltration or Reverse Osmosis
Per- and Polyfluoroalkyl Substances (PFAS) Biosolids, RCRA and CERCLA Regulation Workgroup Report
Drinking Water MCL and Source Water Protection: Recommendation Regarding Aqueous Film-Forming Foams
Technologies for Removal and Destruction of PFAS Compounds

Contact Staff Coordinator
Jefferson City, Missouri
Agenda Additional Materials:
Per- and Polyfluoroalkyl Substance (PFAS) Workgroup Presentation, Nov. 21, 2022
DNR Past and Current Actions Regarding PFAS Presentation, Nov. 21, 2022
PFAS Voluntary Sampling and Pretreatment Language Presentation, Nov. 21, 2022
2022 PFAS Voluntary Sampling and Source Reduction Permit Language, October 2022


The sub-workgroups are smaller teams composed of PFAS workgroup members covering specific topics affected by PFAS. The sub-workgroups currently designated are listed below: 

  • Drinking Water Maximum Contaminant Levels (MCLs) and Source Water Protection
  • Water Quality Standards
  • NPDES Permitting and Pretreatment
  • Removal and Destruction Technologies
  • Biosolids; Comprehensive Environmental Response, Compensation and Liability Act (CERCLA, also called Superfund); and Resource Conservation and Recovery Act (RCRA)
  • Sampling Trends and Procedures 
  • Funding Opportunities
  • Public Policy and Communication

These sub-workgroups will meet throughout 2023 and provide updates at the May and August Water Protection Forum meetings. The sub-workgroups will also report their findings and recommendations by the end of the year.