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At the time, PFAS levels in drinking water were not regulated, though the federal government had non-enforceable “health advisory” levels for how much of the chemicals can be in drinking water ...
The U.S. Environmental Protection Agency on Wednesday announced new drinking water standards limiting levels of per-and polyfluoroalkyl substances (PFAS), also known as "forever chemicals," which ...
If PFAS levels are concerning, consumers can purchase an under-the-counter water filter for their tap. NSF, formerly the National Sanitation Foundation, has a list of recommended filters .
Also, 95 public water systems with PFAS levels between the federal standard's 4 parts per trillion and the state's standard of 20 parts per trillion will need to address PFAS for the first time.
The agency's health advisory level for the combined concentrations of PFOA and PFOS is 70 parts per trillion (ppt). [22] [23] In June 2020 the State of New Jersey published a drinking water standard for PFOA, the first state to do so. Public water systems in New Jersey are required to meet a maximum contaminant level (MCL) standard
For example, Minnesota recommends a guidance value of 0.027 μg/L for PFHxS, [23] and Michigan has a screening level of 0.084 μg/L for PFHxS. [4] In 2020, Michigan adopted drinking water standards for 5 previously unregulated PFASs including PFHxS, which has a maximum contaminant level (MCL) of 51 parts per trillion (ppt) or 0.051 μg/L. [24] [25]
The city of Salisbury, which serves an estimated 30,343 residents, was found to exceed safe PFAS levels by 400% in three tests in 20 which were completed. The results found two pollutants in the ...
The type of PFAS remediation technology selected is often a reflection of the PFAS contamination levels and the PFAS signature (i.e. the combination of short- and long-chain PFAS substances present) in conjunction with the site-specific water chemistry and cross contaminants present in the liquid stream.