Apple Valley, CA Noise Ordinances: Industrial Noise (2026)

Industrial and stationary-source noise in the Town of Apple Valley is governed by Chapter 9.73 (Noise Control). Table 9.73.050-A sets the highest exterior standards for industrial receiving zones: 70 dBA for light industrial and 75 dBA for heavy industrial, applicable at any time (these zones have no separate lowered nighttime figure). Where industrial noise reaches a more sensitive zone (such as residential), the lower residential limits apply at that receiving property. The chapter regulates several stationary industrial sources directly: vibration (9.73.060.G), stationary nonemergency signaling devices (9.73.060.I), and air-conditioning/air-handling equipment (9.73.060.M), the latter with specific dBA limits at property lines and windows that vary by installation date. For prolonged on-site equipment (10 days or more), stationary-equipment limits apply - for example, 60 dBA daytime and 50 dBA at night/weekends in single-family residential receiving areas. The 5 dBA tonal/repetitive correction in Section 9.73.050 also applies to steady hums and repetitive industrial noise. Separately, the Town's Development Code Chapter 9.70 ('Performance Standards') imposes operational standards on uses. These are the Town's own standards under its Municipal Code; San Bernardino County's industrial-noise rules apply only to unincorporated areas, not within the incorporated Town.