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<br />Eugene Code <br /> <br />character, such as hammering, maximum one-hour sound pressure <br />levels permitted beyond the property of origin shall be seven decibels <br />less than those listed in subsection (b). <br />(d) Noises of unusual oeriodic character. For noises of unusual periodic <br />character, such as humming, screeching, and pure tones, the following <br />median octave band sound pressure levels, as required by the <br />Department of Environmental Quality, shall not be exceeded beyond the <br />property of origin when the receiving property is in the NR zone: <br /> <br />Median Octave Band Sound Pressure Levels <br /> <br />Freauencv. Hz <br />31.5 <br />63 <br />125 <br />250 <br />500 <br />1 ,000 <br />2,000 <br />4,000 <br />8,000 <br /> <br />Octave Band Center <br /> <br />7am-10om <br />68 <br />65 <br />61 <br />55 <br />52 <br />49 <br />46 <br />43 <br />40 <br /> <br />10om-7am <br />65 <br />62 <br />56 <br />50 <br />46 <br />43 <br />40 <br />37 <br />34 <br /> <br />(e) Exemotions. Local noise standards set forth in this section do not apply <br />to the following situations: <br />1. Emergency equipment operated on an irregular or unscheduled <br />basis. <br />2. Warning devices operated continuously for no more than 5 <br />minutes. <br />3. Railroad equipment when subject to federal or state regulations. <br />4. Bells, chimes, or carillons. <br />5. Non-electronically amplified sounds at sporting, amusement, and <br />entertainment events. <br />6. Construction site sounds, except that they shall be confined to 7 <br />a.m. through 7 p.m. <br />7. Lawn and plant care machinery fitted with correctly functioning <br />sound suppression equipment and operated between 7 a.m. and 9 <br />p.m. <br />8. Aircraft when subject to federal or state regulations. <br />9. Agricultural equipment operated between 7 a.m. and 7 p.m. <br />(f) Exceotions. Upon written application from the owner or operator of an <br />industrial or commercial noise source, the city manager or the <br />manager's designee may authorize or conditionally authorize exceptions <br />to local noise emission standards in the following situations: <br />1. Infrequent noise. <br />2. Noise levels at or anywhere beyond the property lines of the <br />property of origin when exceeded by an exempt noise, as listed in <br />subsection (d) above, in the same location. <br />3. Noise levels on property owned or controlled by the person <br /> <br />9-87 <br /> <br />03/17/2006 <br />