Maintenance work on Marinette’s Ditch B interim action system installed to remove PFAS from the surface water there means there will be a temporary dialing back of how much water the unit can treat for the contaminants. JCI/ Tyco put out an update on their website this week, stating that in late October the company began maintenance on the tanks at the Ditch B treatment system. This work includes lining the tanks with another layer of protective coating for additional protection from corrosion. In order to successfully complete this maintenance, engineers will need to reduce the system’s operating capacity from 700 to 500 gallons per minute for approximately the next two-week period, which could result in elevated PFAS levels in the surface water. JCI/Tyco says they will remain in regular contact with the WDNR and will test, and make public, results from these ongoing efforts