https://www.mercurynews.com/2020/06/12/coronoavirus-outbreaks-found-at-santa-clara-county-construction-projects/

Despite social distancing and sanitizing mandates, health officials have identified cases of COVID-19 among construction workers at a dozen projects in Santa Clara County.

At least 10 construction workers at a Mountain View development site have tested positive with as many as 30 total workers exposed, the Santa Clara County Health Department said Friday. The project site has been voluntarily shut down, the department said.