Solano County, CA Noise from Specific Sources: Generator Noise (2026)

Solano County Code Section 19-160 lists prohibited acts inside county parks, and subdivision (j) targets generators directly alongside sound amplifying equipment and musical instruments. The rule does not set a decibel number for park generator noise; instead it bars "any device or machine causing excessive noise" unless a park ranger or the parks division has issued a written permit spelling out the terms and conditions under which the equipment may run. The code defines excessive noise subjectively: any noise that a park ranger finds, in his or her sole discretion, has disturbed, may disturb, or will disturb members of the public or wildlife.

That standard gives rangers on-site enforcement authority without waiting for a complaint or a meter reading. Because Chapter 19 governs county parks specifically (Article I, Sections 19-100 through 19-190), the generator rule applies to campgrounds, day-use areas, boat launches, and other parks-division property in the unincorporated county, not to residential properties running backup generators during a PG&E power shutoff, which fall instead under the county's general nuisance and zoning noise standards. can violate the quiet-hours provision after dark even with a permit in hand. Violations of the parks chapter's prohibited-acts list are enforced by park rangers and the parks division, which can eject a violator from the park or revoke camping privileges under the division's general enforcement authority over Chapter 19.