(A) Standards, instrumentation, personnel, measurement procedures, and reporting procedures to be used in the measurement of sound shall be as specified in this section.
(B) Sound level measurement shall be made with a sound level meter using the A-weighting scale, set on "slow" response.
(C) Sound level meters shall be at least Type II meeting American National Standard Institute (ANSI) S1.4-1971 requirements. Persons using the sound level meters shall be trained in sound level measurement and the operation of sound level measurement equipment.
(D) Maximum permitted sound levels by use occupancy.
(1) The use of sound-amplifying equipment is limited to the conditions specified in this section.
(2) No person shall operate or cause to be operated any source of sound in such a manner as to create a sound level that, at its peak, exceeds the limits set forth for the use occupancy categories in Table 1, when measured at or beyond the property line of the property from which the sound originates. For purposes of measurement, the back of the curb, the outside edges of driveways, fences, hedges, or other physical features commonly associated with property boundaries are presumed to be at a point at or beyond the property line. In all cases, the maximum sound level permitted by use occupancy shall be determined on the basis of the use occupancy of the property from which the sound originates, and not by the use occupancy of any surrounding property. Sound that originates from a dwelling unit in a duplex or other multifamily housing unit shall be measured from any point that is at least 25 lineal feet, whether inside or outside a building, from the nearest point of the enclosed or habitable space of the dwelling unit from which the sound originates.
TABLE 1: SOUND LEVELS BY USE OCCUPANCY
Use Occupancy Category
| Time
| Sound Level Limit (dB(A))
|
Residential | 7:00 a.m.-11:00 p.m. | 60 |
11:00 p.m.-7:00 a.m. | 55 | |
Public space, commercial or business | 7:00 a.m.-11:00 p.m. 11:00 p.m.-7:00 a.m. | 65 60 |
Manufacturing, industrial or agricultural | At all times | 75 |
(Ord. 19-20-12, passed 12-9-19)