City Code Section
- A. Maximum sound levels: No person may operate any equipment or appurtenances in commercial construction activities that exceeds 85 dBA, when measured at 50 feet (15.2 meters) from the source. This standard does not apply to trucks (see Section 18.10.020), pile drivers, pavement breakers, scrapers, concrete saws and rock drills.
- B. Night, weekend, and legal holidays limitation: From 6:00 p.m. to 7:00 a.m. the following morning, and 6:00 p.m. Saturday to 7:00 a.m. the following Monday, and on legal holidays, the permissible sound levels of Section 18.10.010 apply to all construction activities except by variance or for reasons of emergency. The exempted equipment of Subsection A. above is not exempted during these hours. For purposes of this Subsection, construction activities on a public road within a zone will be considered as taking place on private property within that zone.
- C. The adjustments to permissible sound levels established in Subsection 18.10.010 B. apply to Subsections A. and B. above.
- D. All equipment used in commercial activities must have sound control devices no less effective than those provided on the original equipment, and no equipment may have an unmuffled exhaust.
- E. All equipment used in commercial construction activities must comply with pertinent standards of the U.S. Environmental Protection Agency.
- F. Pile drivers:
- 1. Notwithstanding Subsection B. above, the permissible sound levels of Section 18.10.010 apply to pile drivers from 6:00 p.m. to 8:00 a.m. the following morning, and 6:00 p.m. Friday to 8:00 a.m. the following Monday, and on legal holidays.
- 2. The owner of a site on which pile driving will occur must cause a notice to be mailed to all residences within 500 feet of the site. Mailing will occur no fewer than 30 days prior to the commencement of pile driving. The notice must list the expected starting and ending dates for pile driving and give a telephone number for further information.