City of Marysville
Noise Ordinance
Public Hearing
November 7, 2023
Purpose of Public Hearing
»Currently the City does not have a noise standard.
»City Council directed staff to draft a noise
ordinance.
»A noise ordinance would allow the City to set a
standard for new development and assist in
environmental review.
Noise Standards- Day Night Average (Ldn)
» Day-Night Average Noise Level (Ldn) describes noise exposure over a 24-hour period. It is calculated by adding a 10-decibel penalty to sound levels at night (10:00 p.m. to 7:00 a.m.) to compensate for the increased sensitivity to noise during the quieter evening and nighttime hours.
» Ldn is used by jurisdictions (such as the State of California and local jurisdictions) to define acceptable land use compatibility with respect to noise.
Caltrans Noise Standards
Noise from Caltrans projects is regulated by Caltrans
Standard Specifications Section 14- 8.02, “Noise Control,” which states:
» Do not exceed 86 dBA at 50 feet from the job site
activities from 9:00 p.m. to 6:00 a.m.
New Municipal Code Chapter 9.070
Highway traffic and construction noise as it relates to noise sensitive land uses
» 65 Ldn for exterior noise
» 45 Ldn for interior noise
» Projects that exceed the standard would be required to provide mitigation.
Proposed Changes
11 The Planning Commission considered the noise ordinance:
» July 2023
» August 23, 2023
» September 27, 2023
» Supportive of the ordinance but wanted to make sure it only applied to new construction projects, and considered
exemptions for heat event (construction hours/holidays etc.) Planning Commission Consideration
Recommendation
»Approve the proposed Noise Ordinance, and
add a new Title 19.070, to the City of
Marysville’s Municipal Code.
Next Steps
»City Council Public Hearing
»In addition, General Plan update will also address
Noise