DNR Asks Tyco To Expand Sampling Of Fish For PFAS

Fish Tissue Sampling In Private Ponds Shows Elevated PFAS Levels

State environmental regulators are asking a Marinette manufacturer of firefighting foam to expand sampling of fish for chemicals known as PFAS. The move comes after sampling in private ponds near Tyco`s fire training facility showed fish had PFAS concentrations that would trigger restrictions on eating fish.

Tyco, a subsidiary of Johnson Controls International (JCI), sampled three private ponds near its fire technology center in Marinette as part of an ongoing investigation into PFAS contamination stemming from its facility. The site has been used for research, testing and training with firefighting foam that contains the chemicals, which don`t break down easily and are linked to health issues, including some cancers...