Shafter Zoning Code § 10.180 Noise Hazards (CA)

Intent
- a. Noise hazard provisions are intended to protect public health and safety by identifying high noise areas in the City and establishing regulations to mitigate those identified high noise levels.
- b. The noise hazard provisions shall be applied to those areas where the projected Community Noise Equivalency Level (CNEL) is 65 decibels, 65 dB(A) or greater.

Development Standards
a. When a land use application or development permit is proposed within the 65 dB CNEL noise contour and such a proposed use or noise associated with such a use is adjacent to a residential zone district or residential use, the following standards shall apply:

General Development Standards

10-30

CITY OF SHAFTER DEVELOPMENT CODE

CHAPTER 10

(1) Noise levels shall be identified. An acoustical report shall be performed to identify noise impacts and any recommendation for noise attenuation or other mitigation measures to be incorporated into the design standards or conditions of approval as applicable.
(2) Interior noise levels in residences dwelling units and educational institutions shall not exceed 45 dB(A) CNEL emanating from sources outside of the affected building.
(3) Exterior noise levels in residential land use areas shall not exceed 65 dB(A) CNEL.
(4) Ability to mitigate exterior noises to the levels of 65 dB(A) CNEL shall be considered by the reviewing authority when determining the actual CNEL level with which the land uses must comply.
(5) In areas where noise exceeds the noise standard, steps shall be taken to mitigate noise levels. An acoustical report identifying mitigation measures shall be required and reviewed by Environmental Health Services Department prior to issuance of any required development permits or approval of land use applications.
b. All other structures shall be sound attenuated against the combined input of all present and projected exterior noise to not exceed the following criteria:

Typical Uses	12-Hour Equivalent Sound Level (Interior) dB(A) CNEL
Educational Institutions, Libraries, Churches	45 dB(A)
General Office, Reception	50 dB(A)
Retail Stores, Restaurants	55 dB(A)
Other Areas for ManufacturingAssembly, Test, Warehousing	65 dB(A)

c. In addition, the average of the maximum levels on the loudest of intrusive sounds occurring during a 24-hour period shall not exceed 65 dB(A) interior.