Agenda - 11-09-2017 - 2 - Review and Update of Portions of the Unified Development Ordinance and Code of Ordinances

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9 Recommendations in RED o Standards, instrumentation, and measurement procedures to be used in the measurement of sound as provided for in this Article are as follows: (1) Sound level measurement shall be made with a sound level meter using the "A"weighting scale set on "slow response," except for measurements of impact sound, set on "slow response. Impact sound shall be measured using the fast response of the sound level meter. (2)The entire sound measurement system shall be serviced and operated as recommended by the manufacturer. Any officer authorized to enforce this ordinance shall be trained in the use of sound level measurement and the operation of sound level meters. (3) Except in the case where noises are emanating from within multi-family structures and the complainant is a resident of the same multi-family structure, noise measurements shall be taken at the corner of the primary structure of the complainant nearest the noise source but when this location is not practical noise measurements shall be made at the boundary of the public or private right-of-way which adjoins the complainant's property. (4) In the case of noises emanating from within a multi-family structure and where a complainant is a resident of the same multi-family structure, noise measurements shall be made in the unit of complainant at a height of at least four feet above the floor and at a point approximately equidistant from all walls. (5) No individual other than the officer operating the meter shall be within ten feet of the meter during the sample period. (6)The meter shall be calibrated immediately before use and recalibrated after use. (7)The officer operating the meter shall face the noise source and record the meters instantaneous response observed at consecutive ten second periods. The sound meter operator may cease taking readings as soon as the readings already taken show a violation of this Article. Five readings above the allowed decibel limits as specified in subsection 16-53(b)attributed to the sound source or sources shall constitute prima facie evidence of a violation of the maximum permissible sound levels set in this Article. Sec. 16-55. - Exceptions. o The following are exempt from the provisions of this Article: (1) Construction operations from 7:00 a.m. to 9:00 p.m. on weekdays and 8:00 a.m. to 9:00 p.m. on weekends for which any required building permits have been issued, provided all equipment is operated according to the manufacturers' specifications and with all standard equipment, manufacturers' mufflers and noise reducing equipment are in use and in proper operating condition. (2) Noises of safety signals, warning devices, emergency pressure relief valves and church bells or chimes. (3) Noises resulting from any authorized emergency vehicle when responding to any emergency call or acting in time of emergency. (4) Nonamplified noises at street activity(such as fairs or parades)where the participants have a permit, if a permit is required by law for such activity.