Acceptance of best evidence to determine subsurface sewage treatment system compliance required.

This bill requires regulators in Minnesota to accept specific, recent evidence when checking if a property's subsurface sewage treatment system is working correctly. It mandates that officials use the most reliable data available, such as lab-tested groundwater samples or measurements of soil depth, provided the results are less than two years old. Property owners can now submit these existing records to prove compliance without undergoing new, potentially invasive testing, as long as the agency follows a set priority for which data to trust. Additionally, the law ensures that owners are notified of their rights at least 90 days before any official notice of noncompliance is issued.