Proposed UCMR5

The proposed Unregulated Contaminant Monitoring Rule 5 (UCMR5) was published in today’s (March 11, 2021) Federal Register (Proposed UCMR5 Federal Register_2021-03-11).  Public comments are due by May 10, 2021.   The proposed monitoring includes 29 PFAS and lithium.  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.

Monitoring would be one year of quarterly monitoring for surface water and groundwater under the direct influence of surface water systems, and two samples (5 to 7 months apart) in a 12 month period for groundwater systems.

EPA will host two identical virtual meetings (via webinar) on April 6th (9:00 am to 12:30  pm, ET) and April 7th (1:00 to 4:30 pm, ET)  2021, to discuss the proposed UCMR5. The meeting will include information on “proposed monitoring requirements, analyte selection, analytical methods, laboratory approval process, and ground water representative monitoring plans (GWRMPs).”

Link to register for April 6th meeting;

Link to register April 7th meeting:

This entry was posted in Water News on by .

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.