sludge

Ben Meyer/WXPR

A WXPR investigation has found over a seven-year period in the late 1980s and early 1990s, the City of Rhinelander spread almost 400 tons of sewage sludge at the Rhinelander-Oneida County Airport. 

Later, the city built two municipal water wells near the place where some of the sludge was spread. Last year, those wells were found to have high levels of PFAS, a chemical with known health risks.

Now, a nationally-recognized expert on PFAS and sludge says the contamination in the city’s water could have come from sludge spread three decades ago.