571—36.7 (462A) Ski zone. A portion of the west arm of Green Valley Lake shall be designated as a ski zone and shall be marked by controlled area buoys as designated by Iowa’s Uniform Waterway Marking System. This designated area shall be referred to as the “ski zone.”
	 36.7(1) Water skiing and general boating are permitted in the designated ski zone between 10 a.m.	and sunset.
	 36.7(2) All boats must maintain a no-wake speed when outside the ski zone between the hours of 10 a.m.	and sunset.