The Environmental Protection Agency (EPA) proposed the fifth Unregulated Contaminant Monitoring Rule (UCMR) in March 2021. On December 20, 2021, EPA posted a pre-publication version of the final UCMR5. Copy is here (ucmr5-finalrule-prepublication).
UCMR5 includes 29 PFAS and lithium. UCMR5 monitoring will be conducted between 2023 and 2025 and will be as follows:
- One year of quarterly monitoring for surface water.
- Two samples (5 to 7 months apart) in a 12 month period for groundwater systems
As described in the final UCMR5, participation in the monitoring is based on population served.
EPA’s UCMR5 Press Release:
EPA plans to hold webinars on the UCMR5 in 2022. Dates and times have not yet been posted.
From EPA’s announcement: “The purpose of the meetings are to discuss key aspects of the UCMR 5 final rule, including a general introduction to the UCMR program, the PWSs subject to UCMR 5 monitoring and the monitoring requirements, ground water representative monitoring plans, the contaminants to be monitored, laboratory approval and analytical methods, reviewing the functions of the Safe Drinking Water Accession and Review System (SDWARS), and best practices for sample collection. EPA anticipates hosting meetings focused on implementation planning in spring 2022, and meetings focused on SDWARS and sample-collection in fall 2022.”
EPA’s announcement regarding next steps for the Lead and Copper Rule Revisions (LCRR) was printed in the December 17, 2021 Federal Register. Copy is here (Fed Reg_LCRR_2021-12-17).
On December 16, 2021 EPA posted a pre-publication version of the Federal Register announcement regarding next steps for the Revised Lead and Copper Rule. Continue reading
On October 28, 2021 EPA published for public comment the document “EPA Strategy to Reduce Lead Exposures and Disparities in US Communities.” Continue reading
Revised WOTUS Definition
In the December 7, 2021 Federal Register (Fed Reg_Revised WOTUS Def_2021-12-07) EPA and the Department of the Army published a revised definition of Waters of the United States (WOTUS) under the Clean Water Act. Continue reading
SAB to Review CCL5
In the December 7, 2021 Federal Register (Fed Reg_SAB CCL5 Review_2021-12-07) EPA announced that the Science Advisory Board (SAB) will hold meetings to review the Contaminant Candidate List 5 (CCL5). Continue reading
In November 2021 EPA published in the Federal Register a request for nominations to a new National Drinking Water Advisory Council (NDWAC) Microbial/Disinfection Byproduct Continue reading
The SWRCB has published updated information on the December 1, 2021 meeting of the DPR Expert Panel. The meeting will be held from 10 am to noon (PST), with a public comment session scheduled to begin at 11:30 am. Continue reading
PFAS Documents Submitted to the Science advisory Board (SAB)
EPA submitted four documents regarding PFAS health effects to the Science Advisory Board (SAB) for review and comment. Continue reading
The State Water Resources Control Board (SWRCB) and the National Water Research Institute (NWRI) announced the tentative schedule for the next three videoconference meetings of the Direct Potable Reuse (DPR) Expert Panel. Continue reading