Solano County, CA Noise Ordinances: Decibel Limits (2026)

10, the General Development Standards Applicable to All Uses in Every Zoning District, sits at the front of the county's zoning ordinance and applies to any land use unless a specific zoning district imposes something stricter. Subsection B lists performance standards every use must meet, and paragraph 1 requires adequate controls to prevent dust, offensive odors, or vibrations detectable beyond the property line, glint or glare beyond the property line or to overflying aircraft, and, in subparagraph b, noise that exceeds 65 dBA at any property line.

, this zoning standard is a flat, around-the-clock property-line limit tied to land use rather than time of day, and it applies uniformly across agricultural, residential, commercial, and industrial zoning districts alike since it precedes the district-by-district tables in Chapter 28. 95 if a proposed use looks likely to exceed the listed thresholds, which functions as a discretionary enforcement backstop beyond the numeric limit itself. 10 is a zoning performance standard rather than a criminal noise statute, violations are typically addressed through the zoning enforcement process, code compliance investigations, and conditions attached to land use permits rather than through immediate misdemeanor citation, distinguishing it from Chapter 21's disturbing-the-peace offense which can be enforced directly by law enforcement at night.