Minn. Stat. § 18B.10: ACTION TO PREVENT GROUNDWATER CONTAMINATION.

(a) The commissioner may, by rule, special order, or delegation through written regulatory agreement with officials of other approved agencies, take action necessary to prevent the contamination of groundwater resulting from leaching of pesticides through the soil, from the backsiphoning or backflowing of pesticides through water wells, or from the direct flowage of pesticides to groundwater.

(b) With owner consent, the commissioner may use private water wells throughout the state to monitor for the presence of agricultural pesticides and other industrial chemicals in groundwater. The specific locations and land owners shall not be identifiable. The owner or user of a private water well sampled by the commissioner must be given access to test results.