Two weeks ago, the ExxonMobil complex in Baytown, Texas caught fire after a petrochemical unit exploded. This was the latest in a series of incidents at petrochemical units in the area: in March and April a series of fires occurred at the same ExxonMobil complex and nearby petrochemical storage facilities, releasing pollutants. Harris County, the county where these facilities are located, conducted an analysis of how local agencies and officials were responding to these incidents. As a result, the county decided to focus on improving communications during incident response—specifically, improving communications between agencies responding to the incidents and keeping the public informed.