1.    Any duly authorized officer, employee, or agent of the department may enter and inspect any property, premise, or place on or at which a public water system is located or is being constructed, installed, or established at any reasonable time for the purpose of ascertaining the state of compliance with this chapter and rules and regulations adopted pursuant thereto. If requested by the owner or operator of the premises, a report setting forth all facts found which relate to compliance status shall be forwarded to that owner or operator.

2.    The department may at any reasonable time conduct tests and take samples of water and other materials which affect or may affect maximum contaminant levels at any     public water system and shall have the power to have access to and copy any records required by department rules or regulations to be maintained and to inspect any monitoring equipment located on the premises.