County of Sonoma’s Roadmap to Reopening

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For a description of the Board’s recently adopted “Project SOS: Safely Open Sonoma” strategies to reduce COVID-19 transmission please read the summary.

Under the State’s Blueprint for a Safer Economy, every county in California is assigned to a tier based on its rate of new cases, overall testing positivity, and the testing positivity of its residents with access to the fewest socioeconomic resources. At a minimum, counties must remain in a tier for at least 3 weeks before moving forward. Data is reviewed by the State weekly and tiers are updated on Tuesdays. To move forward, a county must meet the next tier’s criteria for two consecutive weeks. If a county’s metrics worsen for two consecutive weeks, it will be assigned a more restrictive tier.

State Indicators, Tiers are listed from Higher Risk to Lower Risk of Community Disease Transmission
Indicator Widespread
Tier 1
Tier 2
Tier 3
Tier 4
New cases per 100,000 population per day
(7 day average; 7 day lag)
> 7 4 – 7 1 – 3.9 < 1
Positive tests percentage
(7 day average; 7 day lag)
> 8% 5% – 8% 2% – 4.9% < 2%

How is Sonoma County Doing?

Sonoma County is currently on: Tier 1

To see Sonoma County’s current status and allowable activities for this tier, please visit Blueprint for a Safer Economy

State Monitored Indicators

Indicator Current Status Risk Tier Rating Consider Implementing Restrictions or Taking Precautionary Measures at Last Updated
New Cases per 100,000 population per day (Adjusted for testing volume) 15 Tier 1 >7 11/17/2020
Overall Testing Positivity 4.3% Tier 3 >8% 11/17/2020
Testing positivity in lowest quartile of Health Places Index 7% Tier 2 >8% 11/10/2020

Additional Indicators

Sonoma County has separately been collecting and monitoring a number of indicators relevant to the COVID-19 response and has identified triggers (listed below) to quickly reinstitute precautions and restrictions as needed in advance of any state action should local conditions worsen.

Indicator Current Status Out of Compliance Consider Implementing Restrictions or Taking Precautionary Measures at Last Updated
Case rate per 100,000 residents for the past 14 days; 7 day lag 195.7 Yes >25 11/19/2020
Stability of Hospitalizations:
Average % daily change in confirmed COVID-19 hospitalizations over past week
9% Yes >5% 11/20/2020
No more than 20 confirmed COVID-19 hospitalizations on any single day in past 14 days Met No 20 or less confirmed COVID-19 hospitalizations on a single day in past two weeks 11/20/2020
Increasing Hospitalizations:
Average change >10% in number of confirmed COVID+ patients currently hospitalized
30% Yes >10% increase 11/20/2020
Limited Hospital Capacity:
<20% availability of ICU beds
ICU Beds available: 3.7% Yes <20% availability of ICU beds 11/20/2020
Limited Hospital Capacity:
<25% availability of ventilators
Ventilators available: 73.6% No <25% availability of ventilators 11/20/2020
Case fatality rate/Overall 1.3% No 5% 11/19/2020
Proportion of cases due to community exposure 8% No 30% 11/19/2020
Contact tracing staffing 100 No <75 staff or fewer staff than needed to manage contact tracing needs 11/19/2020
Doubling rate 86 days No < 20 days 11/16/2020
Avg # tests per day per 100,000 population (7 day average with a 7 day lag) 403.2 No <150 11/17/2020
Proportion of cases among adults 65 and older 14% No 21% 11/19/2020
Number of cases in Skilled Nursing Facilities 641 Yes 5 11/16/2020
Number of cases among homeless population 32 Yes 5 11/16/2020
PPE supply in hospitals 3+ day supply No <3 day supply 11/16/2020
PPE supply in Skilled Nursing Facilities >14 day supply No <14 day supply 11/16/2020