Contra Costa County Revises Social Distancing Orders July 17, 2020 General COVID-19, Public Health In Contra Costa, local data is currently showing that 8.04% of COVID-19 tests administered over the past week were positive, demonstrating that COVID-19 is spreading rapidly in the county. As such, the county revised its social distancing orders to temporarily prohibit indoor worship services, require that all staff and customers wear face coverings at all times in outdoor dining settings, except when putting food or drink in the mouth, as well as increased guidance for businesses that serve alcohol with meals.