Unregulated Contaminant Monitoring Rule (UCMR) Meetings and Materials

UCMR 5 meetings

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, 815-A-22-001)

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)

• April 2021 Meeting Material - Revisions to the UCMR 5: Public Meeting and Webinar (pdf) (April 2021, 815-A-21-001)

Approach to UCMR 5 - July 2019

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.

40 CFR (Code of Federal Regulations, Title 40) Part 141 - Public Meeting and Webinar: Development of the Proposed UCMR 5 for Public Water Systems (PDF) (2 pp, 253 K, About PDF)

• 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.

• June 2018 Meeting Material - Method Development for Unregulated Contaminants in Drinking Water: Public Meeting and Webinar (PDF) (104 pp, 2.3 MB, About PDF)