(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 Director of Pollution Control.
(b) No person shall perform any construction or repair work on any structure or building, or perform any excavation or road work, which work entails the use of any power-operated 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) No sound level produced by any piece of construction equipment manufactured twenty-four months after the effective date of this section, with the exception of impulsive sound, and critical construction equipment shall 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 507.17.
(1952 Code § 17-15-111; Ord. 3-75)