Proposed UCMR5

The Environmental Protection Agency (EPA) posted a pre-publication version of the proposed Unregulated Contaminant Monitoring Rule 5 (UCMR5).   The proposed monitoring includes 29 PFAS and lithium.  The document was signed by the EPA Administrator on January 14, 2021 and sent to the government printing office for publication in the Federal Register.

Once the UCMR5 is published in the Federal Register there will be a 60-day public comment period.

Required monitoring would be one year of quarterly monitoring for surface water and groundwater under the direct influence of surface water systems, and two samples in a 12 month period for groundwater systems.  EPA is proposing that PFAS would be measured using EPA Methods 533 and 537.1.  EPA anticipates the monitoring would occur during 2023 to 2025.

EPA statement from the document: “This document also describes EPA’s evaluation of other candidate contaminants, including Legionella pneumophila; four haloacetonitriles (dichloroacetonitrile, dibromoacetonitrile, trichloroacetonitrile, and bromochloroacetonitrile); 1,2,3-trichloropropane; and “total organic fluorine” (TOF), and invites public comment.”

Copy of the pre-publication version of the UCMR5 and a draft Fact Sheet are here (prepublication-proposed-revisions-ucmr5 ucmr5-proposal-factsheet-draft ).

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About Dan Askenaizer

Dr. Askenaizer leads WQTS’ work on regulatory compliance support for many of our water agencies clients. Dr. Askenaizer tracks water quality and treatment regulations at the Federal and State levels and provides regulatory updates to our clients. Dr. Askenaizer has strong expertise in the development of Regulatory Monitoring and Compliance Plans (RMCPs), which he has completed for a number of water agencies. He has also been working on a number of projects dealing with the development of distribution system monitoring plans and review of nitrification control strategies. Prior to joining WQTS, Dr. Askenaizer was the Water Quality Manager for the Glendale Water and Power. Under his leadership, the Water Quality Group conducted a demonstration-scale study of chlorite for nitrification control and a pilot-scale study of biological treatment for removal of nitrate. Dan has 30 years of experience working on projects dealing with regulatory, water quality and public health issues. Dan has given numerous presentations at workshops and round-tables across the country for water utilities. Dan was instrumental in developing and implementing a Mentoring Program for water staff and was involved in a Sustainable Development team.