Should the sound level exceed 60 dba measured, by the requirements of Section 1355.07, with the equipment in operation, additional measurements shall be made with the equipment not operating in order to determine its contribution to the sound level above 60 dba. If the difference in levels exceed 5 db between the equipment operating and not operating, the equipment shall be considered as contributing to loud and objectionable sounds and shall be modified or controlled so that the difference shall not exceed 5 db.
(Ord. 72-77. Passed 6-20-72.)