(A) A person shall not operate a motorboat on the waters of Lake Orion unless the motorboat is equipped with a muffler, underwater exhaust, or other modern noise reduction device in good working order and in constant operation from which emission measured at not less than 50 feet from the motorboat, does not exceed 86 decibels on the “A” scale on a sound meter having characteristics of a general purpose sound meter as defined by American Standards Association S1, 4-1966.
(B) If a motorboat is equipped with a muffler or any other modern noise reduction device, including, but not limited to, a water injected exhaust, but is also equipped with the capability of disengaging that device through the use of any equipment such as, but not limited to, a water turnoff valve, bypass, or similar device, this shall be prima facie evidence that the muffler or noise reduction device is not in constant use, and shall be considered a violation of this chapter.
(Ord. 2.12, passed 4-27-87) Penalty, see § 10.99