Unregulated Contaminant Monitoring Rule (UCMR) Meetings and Materials
UCMR 5 meetings
UCMR 5 accessing and communicating results webinars – February 2023
EPA will host two identical webinars on February 22 and 23, 2023 to provide public water systems (PWSs), States, and other interested stakeholders with information on accessing and communicating UCMR 5 monitoring results. The presentation will review the reporting requirements and data review functionality in EPA’s web-based Safe Drinking Water Accession and Review System (SDWARS) for large (i.e., those serving more than 10,000 people) and small (i.e., those serving 10,000 or fewer people) PWSs. The presentation will also discuss the plan for communicating results from small PWSs, how the public can access the UCMR 5 results in the National Contaminant Occurrence Database, and provide additional resources developed by EPA and other stakeholders to communicate results.
- February 22, 2023 from 1:30 to 3:30 p.m., eastern time
- February 23, 2023 from 1:30 to 3:30 p.m., eastern time
The number of webinar connections available is limited and will be offered on a first-come, first-served basis. If stakeholder interest exceeds the maximum number of available connections, EPA may schedule additional webinars, with dates and times posted on this page.
UCMR 5 implementation webinars – October 2022
EPA hosted two virtual meetings (via webinar) on October 26, 2022, and repeated the meetings on October 27, to provide public water systems (PWSs) with a comprehensive overview of the UCMR 5 program and the actions they must take to prepare for monitoring. The meetings addressed monitoring schedules and locations, the Safe Drinking Water Accession and Review System (SDWARS), sampling information, and reporting requirements.
- October 2022 Meeting Material for Small PWSs (those serving 10,000 or fewer people):
- October 2022 Meeting Material for Large PWSs (those serving more than 10,000 people):
- EPA developed a video to assist small PWSs with how to prepare for and schedule UCMR 5 sampling, collect samples for PFAS and lithium analysis while minimizing cross-contamination, and package and ship the UCMR 5 sampling kit to a contracted laboratory for analysis.
UCMR 5 final rule public webinars – March 2022
EPA hosted two identical virtual meetings (via webinar) on March 16 and 17, 2022, to provide public water systems (PWSs), states, laboratories, and other stakeholders with a comprehensive overview of the UCMR 5 program. The meetings addressed: a general introduction to the UCMR program, PWSs subject to UCMR 5 requirements, the analytes to be monitored, monitoring locations and frequency, reporting requirements, ground water representative monitoring plans (GWRMPs), and the laboratory approval program.
40 CFR (Code of Federal Regulations, Title 40) Part 141: Final Rule - Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 5) for Public Water Systems and Announcement of Public Meetings (PDF) (27 pp, 650 K, About PDF)
- March 2022 Meeting Material - UCMR 5: Meeting Presentations for Implementation (pdf)
- March 2022 Meeting Material - UCMR 5: Meeting Presentations for Implementation (video)
UCMR 5 proposal public webinars – April 2021
EPA hosted two identical webinars on April 6 and 7, 2021, to discuss the proposed UCMR 5. The meeting scope included the proposed monitoring requirements, analyte selection, analytical methods, laboratory approval process, and ground water representative monitoring plans (GWRMPs).
40 CFR (Code of Federal Regulations, Title 40) Part 141: Proposal - Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 5) for Public Water Systems and Announcement of a Public Meeting (PDF) (27 pp, 440 K, About PDF)
EPA hosted a public meeting and webinar in July 2019 in Cincinnati, Ohio to discuss potential approaches to developing the proposal for UCMR 5 and allow for early stakeholder engagement.
- July 2019 Meeting Material - Development of the Proposed UCMR 5: Public Meeting and Webinar (PDF) (140 pp, 1.2 MB, About PDF)
Methods in development – June 2018
EPA hosted a public meeting and webinar in June 2018 designed to spark innovation on analytical testing procedures for unregulated contaminants in drinking water.