Assembly Bill 635 mandates that the Department of Natural Resources (DNR) notify relevant county and tribal health departments, as well as county land and conservation departments, when it identifies an exceedance of groundwater protection standards or standards for perfluoroalkyl or polyfluoroalkyl substances (PFAS). The DNR is required to provide this notification within seven business days of confirming the exceedance and must also inform adjacent counties that may be adversely affected. Additionally, the bill stipulates that the DNR must establish and maintain a notification system to keep these departments informed about such exceedances.

The bill introduces new legal language under section 283.90 of the statutes, detailing the notification process and the responsibilities of the DNR. It emphasizes the importance of timely communication regarding environmental health risks and ensures that the notices are accessible for public inspection. The act is set to take effect on the first day of the seventh month following its publication.