§ 97.04  NOISE LEVELS.
   (A)   Generally. It shall be unlawful for any person to emit any noise beyond the boundaries of his premises in excess of the noise levels established in these regulations.
   (B)   Noise level standards.
 
Receptor's Zone
Emitter Zone
Industrial (dBA)
Commercial (dBA)
Residential Day (dBA)
Residential Night (dBA)
Residential
62
55
55
45
Commercial
62
62
55
45
Industrial
70
66
61
51
 
   (C)   High background noise levels and impulse noise.
      (1)   In those individual cases where the background noise levels caused by sources not subject to these regulations exceed the standards contained herein, a source shall be considered to cause excessive noise if the noise emitted by the source exceeds the background noise levels by five dBA, provided that no source subject to the provisions of this chapter shall emit noise in excess of 80 dBA at any time, and provided that this section does not decrease the permissible levels of other sections of this chapter.
      (2)   No person shall cause or allow the emission of impulse noise in excess of 80 dB peak sound pressure level during the nighttime to any residential noise zone.
      (3)   No person shall cause or allow the emission of impulse noise in excess of 100 dB peak sound pressure level at any time to any zone.
   (D)   Exclusions. These levels shall not apply to noise emitted by or related to:
      (1)   Natural phenomena;
      (2)   Any bell or chime from any building clock, schools or church;
      (3)   Any siren, whistle or bell lawfully used by emergency vehicles or any other alarm systems used in an emergency situation; provided, however, that, burglar alarms not terminating within 30 minutes after being activated shall be unlawful;
      (4)   Warning devices required by OSHA or other state or federal safety regulations; and
      (5)   Farming equipment or farming activity operated within an area for strictly farming.
   (E)   Exemptions. The following shall be exempt from these regulations, subject to special conditions as spelled out:
      (1)   Noise created as a result of, or relating to emergency;
      (2)   Noise from domestic power equipment such as, but not limited to, power saws, sanders, grinders, lawn and garden tools or similar devices operated during daytime hours;
      (3)   Noise from snow removal equipment operated by the city or its agents;
      (4)   Noise created by an aircraft flight operations which are specifically pre-empted by the Federal Aviation Administration;
      (5)   Noise created by any recreational and/or social activities which are permitted by law and for which a license or permit has been granted by the town, including, but not limited to, parades, sporting events, concerts and fireworks displays;
      (6)   (a)   Noise created by municipal refuse and solid waste collection.
         (b)   Noise created by private refuse and solid waste collection provided that the activity is conducted during the hours of 5:00 a.m. to 5:00 p.m.
      (7)   Noise generated by any construction equipment which is operated during daytime hours; provided that, operation of construction equipment during nighttime hours shall not exceed the maximum noise levels as specified in this section.
(1967 Code, § 12-4)  (Ord. passed 7-7-1986; Ord. passed 4-20-1987)