DDW Releases Updated PFAS Sampling Guidance

In 2019, the State Water Resources Control Board (SWRCB) Division of Drinking Water (DDW) issued guidance for PFAS sampling.  DDW has released an updated version of the guidance document (ddw_pfas_sampling_guidance_may_2020).  A preliminary review indicates several changes in the text throughout the document and the updated version includes the following statement:

“The analytical method used to assess the presence of PFAS in drinking water is EPA Method 537.1 (November 2018). This is the only method acceptable to DDW for drinking water analyses. Use of a laboratory accredited for this method is required for samples to be reported to DDW.”

The enclosed document includes a link to an April 2020 list of laboratories accredited to analyze for PFAS with EPA Method 537.1.   The 2019 version of the sampling guidance cited the use of both EPA Method 537.1 and EPA Method 537 rev 1.1.

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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.