The U.S. Environmental Protection Agency on November 14 issued the final 5th Contaminant Candidate List (CCL5), which is a list of contaminants in drinking water that are currently not subject to any proposed or promulgated national primary drinking water regulations.
In addition, these contaminants are known or anticipated to occur in public water systems and may require regulation under the Safe Drinking Water Act (SDWA). CCL 5 includes 66 chemicals, three chemical groups—cyanotoxins, disinfection byproducts (DBPs), and 18 per- and polyfluoroalkyl substances (PFAS)—and 12 microbial contaminants.
For information on chemical contaminants, contact Kesha Forrest, Office of Ground Water and Drinking Water, Standards and Risk Management Division, at (202) 564-3632, or email firstname.lastname@example.org.
NGWA has long been an industry leader in providing PFAS research, education, and resources to the public and scientific communities. Learn more by visiting NGWA.org/PFAS, which is a complete resource center about the groundwater contaminants featuring a recently updated top-10 facts sheet, a position paper, and more.
Also found there is Groundwater and PFAS: State of Knowledge and Practice, which NGWA published in 2017 and is one of the first PFAS guidance documents to be released. The Association recently hosted its second conference in Westerville, Ohio, focused entirely on PFAS science and remediation.