Mich. Comp. Laws § 324.31115: Measurement of stream flow, lake levels, and water quality; gauges and sampling devices; entering public property.

Sec. 31115.

The department may maintain gauges and sampling devices to measure stream flow, lake levels, and water quality as necessary to implement this part, and may enter at all reasonable times in or upon any public property for the purpose of inspecting and investigating conditions relating to implementing this part.