El Monte, CA Public Conduct: Loud Party Ordinance (2026)

36 or because it threatens public peace, health, or safety for any other reason, the ordinance declares the gathering a public nuisance. The person or persons in apparent charge of the premises, and anyone apparently responsible for the disturbance, are civilly liable jointly and severally for the city's costs of responding, including police, firefighting, rescue, and emergency medical personnel and their salaries; if a responsible person is a minor, that liability shifts to the minor's parents or guardians. 100(A) requires that an officer first give the person in charge a written or verbal warning to abate the gathering, documented on a form approved by the City Administrator and Police Chief that records the time of the initial response and identifies the officer who delivered it.

Subsection B waives that warning requirement when the duty watch commander determines the initial response poses a safety risk to responding personnel or finds other grounds to skip it, a determination that must be documented in a written memorandum. Subsection C caps the recoverable cost at $1,000 per single incident, though the city can separately bill its attorney's fees and court costs, including officer witness fees, if it has to sue to collect. 080's general noise-disturbance prohibition.