At approximately 12:30 p.m. at the height of a nearly record-breaking day of hot weather, a one-alarm gas leak was reported on 1727 S. Amphlett. Construction crews at the office complex were drilling for a new water system and accidentally struck the gas lines, causing a minor leak and substantial odors, according to San Mateo Fire and Rescue Battalion Chief John Warren.
Firefighters were dispatched to the scene to evacuate some 50 to 60 workers at the site.
PG &E was also dispatched to locate the source of the leak and to turn off the natural gas in the facility.
According to Warren, the two-building site was secured within 30 minutes and the majority of workers returned to work without incident.
No one reported needing any medical attention.