531.07 SCHOOLS, HOSPITALS, CHURCHES.

   No person shall create any unnecessary, excessive or offensive noise on any street, sidewalk or property adjacent to any school, institution of learning or church while any of the same is in use, or adjacent to any hospital at any time, provided conspicuous signs are displayed in such streets, sidewalk or public place indicating the presence of a school, institution of learning, church or hospital.
(Ord. 30-1980. Passed 3-10-80.)

531.08 LOADING; UNLOADING.

   No person shall create loud and excessive noise in connection with loading or unloading any vehicle or the opening and/or destruction of bales, boxes, crates and containers. If any noise for any duration is 7 dbA over the fixed source noise level for the zone as specified in Section 531.14, when measured at the property line of the property affected by the noise emission, between the hours of 9:00 p.m. and 7:00 a.m., then this in itself would declare the noise unnecessary and excessive.
(Ord. 30-1980. Passed 3-10-80.)

531.09 HOMEOWNERS OUTDOOR EQUIPMENT.

   (a)    No person shall operate engine or motor-powered lawn or maintenance tools intended for use in residential areas, typically capable of being used by homeowners such as power mowers, garden tools, riding tractors, power saws, edgers, etc., which create a noise that exceeds the fixed source noise level for the zone as specified in Section 531.14 at the property line of the property affected by the noise emission except between the hours of 8:00 a.m. and 9:00 p.m. on weekdays and between the hours of 9:00 a.m. and 9:00 p.m. on weekends and legal holidays.

   (b)    Homeowners outdoor equipment must have mufflers where applicable and which are in good working condition

   (c)    Snow blowers and snow plows are exempted from the time requirements of this section when removing snow and ice.
(Ord. 30-1980. Passed 3-10-80.)

531.10 VEHICLE; NON-STATIONARY SOURCE REPAIRS.

   No person shall repair, rebuild or test within any residential area any motor vehicle or nonstationary source in such a manner as to cause unnecessary, excessive or offensive noise. If the noise is 7 dbA over the fixed source noise level as specified in Section 531.14 for more than five minutes out of sixty minutes, then this in itself would declare the noise loud end excessive.
(Ord. 30-1980. Passed 3-10-80.)

531.11 CONSTRUCTION.

   (a)    No person shall use any pile driver, shovel, hammer derrick, hoist tractor, roller or other mechanical apparatus operated by fuel or electric power in building or construction operations between the hours of 10:00 p.m. and 6:00 a.m., within a residential area or within 500 feet of a school or hospital, except for temporary conditions approved by the Mayor or Chief of Police or the City's authorized representative.

   (b)    No person shall perform any construction or repair work on any structure or building; or perform any excavation or roadwork, which entails the use of any poweroperated, construction-type device in such a manner that the noise created thereby substantially exceeds the noise customarily and necessarily attendant to the reasonable and efficient performance of such equipment.

   (c)    The sound level produced by any piece of construction equipment manufactured twenty-four months after the effective date of this chapter, with the exception of impulsive sound and critical construction equipment shall not exceed 90 dbA when measured at the property line or at a distance of not less than fifty feet from the equipment when operating at the boundary line of the construction project within a residential area or within 500 feet of a school or hospital. Impulse-related activities such as pile driving type equipment, pavement breaker type equipment other than hand held, and blasting will be regulated by Section 531.17.

(Ord. 30-1980. Passed 3-10-80; ord. 61-1985. Passed 5-28-85.)

531.12 EXEMPTIONS.

   The following uses and activities shall be exempt from noise level regulations:

   (a)    Noises of safety signals, warning devices and emergency pressure relief valves.

   (b)    Noises resulting from any authorized emergency cr public safety vehicle, when responding to an emergency call or acting in time of emergency.

   (c)    Noises resulting from emergency work.

   (d)    Noises resulting from authorized public activities such as parades, fireworks, sports events, musical productions and other activities which have the approval of the department who has been authorized this responsibility by Council.

   (e)    Noises resulting from sports events authorized by the Board of Education, private schools, colleges or universities.
(Ord. 30-1980. Passed 3-10-80.)