Rule 4. On the waters of Duck lake, section 24, town 11 north, range 18west, and sections 18 and 19, town 11 north, range 17 west, township of Fruitland, county of Muskegon, state of Michigan, west of a line beginning at a point on the north shore of Duck lake, 800 feet west of Lamos road and running due south to the opposite shore, no operator of any motorboat shall exceed a slow-no wake speed, which means a very slow speed whereby the wake or wash created by the motorboat would be minimal.
Mich. Admin. Code R. 281.761.4