For the O’Fallon Weekly O’FALLON – Last week, St. Clair County and the rest of Region 4, made up of the Metro East, were placed under Tier 2 mitigations under Governor JB Pritzker’s COVID-19 plan.Tier 2 Resurgence mitigations are applied to a region experiencing a sustained resurgence of COVID-19 that have not yet achieved metrics...