The breakthrough came this week when the Minnesota Pollution Control Agency (MPCA) announced that it had traced the PFAS found in one of Hastings' wells back to 3M's manufacturing site in Cottage Grove. This crucial finding has paved the way for the city to access a portion of the settlement funds to address the treatment of water from that well.
Assistant Commissioner Kirk Koudelka of the MPCA explained the significance of this development, stating, "Now they have a source of funding for a portion of one of those treatment plants to move forward, which would reduce the need for them to go to their residents." This financial assistance is a welcome relief for the city, as it helps alleviate the burden on its residents and businesses.
"It helps a ton," Wietecha acknowledged, "but it's still a budget buster for the residents and businesses of Hastings. We've got a long way to go." The city remains committed to working with the MPCA to investigate the sources of PFAS in its remaining wells, with the hope of securing additional funding to address the full scope of the problem.
Koudelka's explanation of the MPCA's investigation provides valuable insights into the complex nature of PFAS contamination. The agency has traced a newer 3M-made chemical, known as TFSI, to the Hastings well, rather than the federally regulated compounds that are driving the city's treatment project. This finding, he said, "is helping us show the path of how other PFAS are getting to the well," likely through a fault along the Mississippi River and into the groundwater.
The MPCA's continued efforts to uncover the full extent of PFAS contamination in Hastings' wells will be crucial in securing additional funding and support from the state and federal levels. As Wietecha noted, the city intends to keep working with the MPCA to investigate connections for the other wells, even though a direct link has not yet been established.
3M, the manufacturer of these chemicals, has a long history of PFAS production at its Cottage Grove facility, dating back to the 1950s. While the company phased out the production of the two most widely known and harmful PFAS compounds, PFOS and PFOA, in the early 2000s, it continues to produce other replacement PFAS with shorter carbon chains.
The persistent nature of PFAS and their tendency to accumulate in the environment, humans, and wildlife have raised significant health concerns. These compounds have been linked to a range of health impacts, including kidney and thyroid problems, reproductive issues, and cancer.
3M has acknowledged the need to address the PFAS challenge and has stated its plans to discontinue the manufacturing of PFAS by the end of 2025. However, the damage already done and the long-term environmental and public health implications of these "forever chemicals" will continue to be a pressing concern for communities like Hastings.