In November 2021, the Iowa Department of Natural Resources (Iowa DNR) sampled Iowa City's drinking water as part of the State's PFAS action plan. PFAS refers to the family of chemicals known as Per- and Polyfluoroalkyl Substances.
The Environmental Protection Agency has released a health advisory level associated with two PFAS - Perfluorooctanoic acid (PFOA) and Perfluorooctanesulfonic acid (PFOS) - at a combined concentration of 70 ppt (parts per trillion). The results of Iowa City's PFAS samples found no detectable PFOA or PFOS.
The analysis tested for 25 other PFAS...