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2, warning devices operated continuously <br />for no more than five minutes. <br />3. Rai~,road equipment when subject to <br />federal or state regulations. <br />4. Be11s, chimes, or carillons. <br />5. Non-electronically amplified sounds <br />at sporting, amusement, and entertainment events. <br />6. Construction site sounds, except that <br />they shall be confined to 7 a.m, through ? p.m. <br />7. sawn and plant care machinery fitted <br />with correctly functioning sound suppression <br />equipment and operated between ? a.rn. and S p.m. <br />S. Aircraft when subject to federal or <br />state regulations. <br />9.~ Agricultural equipment operated be- <br />tween ? a.m, and ? p.m. <br />~f} Exceptions. Upon written application from <br />the owner or operator of an industrial or commercial <br />raise source, the city manager or the manager's desig- <br />nate may authorize or conditionally authorize excep- <br />tions to local noise emission standards in the follow- <br />ing situations: <br />1. Infrequent events. <br />2. Noise levels at or anywhere beyond the <br />property lines of the property of origin when ex- <br />ceeded by an exempt noise, as listed in section <br />9.644~e} above, in the same location. <br />3. Noise levels on property owned or con- <br />troll.ed by the person generating the noise. <br />4. If after applying reasonably available <br />control technology, a use existing as of January <br />2?, 1982 is unable to conform to the standards <br />established by this section.. <br />Exception applications shall be filed in the office <br />of the building division on a form prescribed by that <br />division, and shall be accompanied by a fee as estab- <br />lished by council resolution. <br />9.646 vibrations. No use in any zoning district shall gen- <br />erate ground vibration which is perceptible without <br />instruments by the building official beyond the property of <br />origin. <br />ground vibrations caused by motor vehicles, trains, air- <br />craft, or temporary construction work are exempt from these <br />standards. In addition, ground vibrations transmitted between <br />two or more properties owned or controlled by one person are <br />exempt from these standards. <br />9.645 Electromagnetic Interference. No use in any zoning <br />district shall~l~~~~~p~roduce electromagnetic interference <br />with properly designed and functioning electromagnetic equip- <br />ordinance - 5 <br />