Minnesota Finalizes Tiered PFAS Biosolids Strategy Amid Federal Inaction

Minnesota regulators have finalized a tiered biosolids strategy requiring facilities to test their biosolids for PFAS before land application and mandating different subsequent actions depending on the PFAS concentration, marking yet another example of states moving ahead with measures to limit PFAS in biosolids amid federal uncertainty. Starting Sept. 1, this year, wastewater treatment facilities (WWTFs) that land apply biosolids in Minnesota are required to collect “one biosolids sample per cropping year (September 1 through August 31) and analyze it...