STP’s Siren System, located within the 10-Mile Emergency Planning Zone (EPZ) around the site, has been retired following the implementation of the new IPAWS system in Matagorda County in April 2022. IPAWS offers the latest technology to increase the speed and reach of notifications, surpassing the capability of the siren network. Matagorda County now uses Wireless Emergency Alerts (WEAs) in place of the sirens and in addition to numerous other established communication methods to notify residents of any emergency situation. These established methods include Emergency Alert System (EAS) radio and television alerts, national weather service radio, auto-dial calling and route alerting. 

In April 2022, the Matagorda County Office of Emergency Management 

implemented the use of the Integrated Public Alert & Warning System, known as IPAWS, for alerting the public of any emergency in the area around STP. This technology is the Federal Emergency Management Agency’s (FEMA) national system for local alerting that allows for faster, clearer notification of the public during any emergency event. More information on the system can be found at FEMA.gov/ipaws. 

STP is dedicated to remaining prepared to respond to any emergency event. Our emergency Plan involves multiple drills and exercises each year to build and maintain skill in all areas of emergency response. We work closely with local county and state officials and maintain multiple emergency teams that stand ready to respond to any event 24 hours a day, 7 days a week.