Discussion and Review of Tiffin Municipal Code Revisions – Preparation for Setting the Public Hearing — Tiffin City Code - DRAFT

CHAPTER 166 ESTABLISHMENT OF ZONING DISTRICTS AND THE OFFICIAL ZONING MAP the preferred frequencies (American Standards Association S1 6-1960, Preferred Frequencies for Acoustical Measurements) must be used with the following tables. The suspected perpetrator will be required to hire, at the approval of the City, a consultant to measure, record, and report to the Council results about compliance with this Zoning Code. The owner of the use of the suspected noise violation will incur all costs. b. At no point along the boundary of a residential district or along an adjacent lot shall the sound pressure level of any operation or plant exceed the decibel limits in the octave bands designated below. c. Maximum Permitted Sound Level. Octave Bank Frequency Cycles per Second Decibels 0-74 58 75-149 54 150-299 50 300-599 46 600-1,199 40 1,200-2,399 33 2,400-4,799 26 4,800-over 20 d. Exceptions. The following uses and activities shall be exempt from the noise level regulations in the M-1 District: i. Noises not directly under control of the property user. ii. Noises emanating from construction and maintenance activities between 7:00 a.m. and 9:00 p.m. Such activities are those that are non-routine operations accessory to the primary activities, and that are temporary in nature, or conducted infrequently. iii. The noises of safety signals, warning devices, and emergency pressure relief valves. iv. Transient noises of moving sources such as automobiles, trucks, airplanes, and railroads. (2) Vibration. a. Any industrial operation or activity that may cause at any time and at any point along the nearest adjacent lot line, earth borne vibrations in excess of the limits set forth in Column I of the following tables is prohibited. CODE OF ORDINANCES, TIFFIN, IOWA - 1714 -