The City of Hayward caps noise at the property plane at 70 dB(A) daytime (7 a.m.-9 p.m.) and 60 dB(A) at night (9 p.m.-7 a.m.) on residential property, and 70 dB(A) any time on industrial property. Municipal Code Section 4-1.03.1 governs a data center's cooling and generators.
Hayward's noise regulations, Municipal Code Section 4-1.03.1, set limits at the "property plane." On residential property the cap is 70 dB(A) from 7 a.m. to 9 p.m. and 60 dB(A) from 9 p.m. to 7 a.m. Commercial and industrial property may reach 70 dB(A) at any hour - but industrial property that abuts residential property drops to the residential limits. Public property is capped at 60 dB(A) measured 25 feet from the source. A data center's cooling towers, chillers, and backup generators must meet the limit of the nearest receiver, so a site next to homes is bound to 60 dB(A) overnight.
Noise above the Section 4-1.03.1 limits is a code violation enforced by the City through citations and abatement, and can breach the noise conditions attached to a data center's Conditional Use Permit.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Hayward, CA
Commercial vehicles over 10,000 pounds gross weight or 22 feet in length are prohibited from parking overnight in Hayward residential districts under Hayward...
Hayward, CA
Hayward permits on-street parking with a 72-hour maximum on public streets before a vehicle is deemed abandoned under CVC 22651(k). Many downtown blocks have...
Hayward, CA
Hayward restricts RV, trailer, and boat parking on public streets to 72 hours and on residential front yards where they must be screened or stored in side or...
Hayward, CA
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Hayward, CA
Hayward allows fences up to 6 feet in rear and side yards and 3 to 4 feet in front. Corner visibility triangles need lower heights. Taller fences need a perm...
Hayward, CA
CA H and S Code 115920 (Pool Safety Act) requires Hayward pool barriers at least 60 inches tall with self-closing, self-latching gates. Building Division enf...
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