2004 JANUARY - Laserfiche WebLink

9.04.020 National Standards Institute Standard 51.1, "Acoustic Terminology", paragraph Z.9, or successor reference. All references to dB in this chapter utilize the A-level weighting scale, abbreviated dBA, mea- sured as set forth in this section. F. "Sound level meter" means an in- strument, including a microphone, an amplifier, an output meter, and frequency weighting networks for the measurement of sound levels, which meets or exceeds the requirements pertinent for type S2A meters in American National Standards Institute specifications for sound level meters, S 1.4-1971, or the most recent revision thereof. G. "Vehicle" means any device by which any person or property may be propelled, moved or drawn upon a high- way or street. (Prior Code § 4-9.02) 9.04.030 Noise Limits -Residential Property: A. Residential Property: No person shall produce or allow to be produced by any machine, animal, device, or any com- bination of the same, on residential prop- erty, noise level in excess of sixty (60) dBA at any point outside of the property plane, unless otherwise provided in this chapter. B. Multi-Family Residential Property: No person shall produce or allow to be produced by any machine, animal, device, or any combination of the same, on multi- family residential property, a noise level in any dwelling unit in excess of sixty (60) dBA except within the dwelling unit in which the noise source or sources originate. For purposes of this section, measurement of the noise level shall be taken at least four feet (4') from any wall, floor or ceiling inside any dwelling unit on the same property with the windows and doors of the dwelling unit closed. C. Distribution Transformers: The noise levels from distribution transformers on private property shall be measured at a distance of twenty five feet (25') or from the nearest residential structure, whichever is shorter. (Ord. 1880, 2003; Prior Code § 4-9.03) 9.04.035 Noise Limits -Commercial Or Industrial Use Adjacent To Residential Zone: Any business establishment which is located within three hundred feet (300') from any residential zone and which remains open for business at any time between the hours of ten o'clock (10:00) P.M. and six o'clock (6:00) A.M. shall adhere to the following standards of performance: A. The noise level produced on the business premises between the hours of ten o'clock (10:00) P.M. and six o'clock (6:00) A.M, shall not exceed the residen- tial noise standard at the property plane between the residential zoning district and the commercial zoning district. B. In the case of a business establish- ment which: 1) serves alcohol, 2) is locat- ed within three hundred feet (300') from a residential zoning district, and 3) is open for business between the hours of ten o'clock (10:00) P.M. and six o'clock (6:00) A.M., the business owner and/or agent in charge shall arrange for responsi- ble agents to patrol the parking lot and take reasonable actions necessary to in- hibit loitering, shouting, fighting, revving (Pleasanton January 2004) 216