Emergency Response Planning Areas (ERPAs) are geographic zones located mostly in southern New Castle County
Delaware, within the ten-mile Emergency Planning Zone (EPZ), from the Salem and Hope Creek Generating Stations. ERPAs are used to quickly describe which geographic area is affected by an emergency.
Emergency Response Planning Areas have been issued in the past but this download provides information about the new ERPAs for Delaware. Included are updated information about them including:
- ERPAs have been combined using easily recognized boundaries such as major roadways, towns, waterways, etc.
- There are now four ERPAs instead of ten.
- New ERPAs are color coded (orange, blue, green, pink) and have corresponding letters (A, B, C, D).
- The four new zones have been successfully tested in radiological exercises conducted by DEMA.
- New ERPAs are used to simplify notification for sheltering and evacuation of residents, visitors, schools, businesses and other facilities within the ten-mile EPZ.
Prepare Yourself
Why is this information helpful? This guide also includes a map with the four Emergency Response Planning Areas (ERPAs) that are shaded on the map show the 10-mile Emergency Planning Zone (EPZ) of the Salem and Hope Creek Nuclear Generating Stations. It can help you identify your residence, business or school on the map. If you are within the colored zones, you can note the corresponding ERPA color and letter.
Best of all, this guide also features instructions on what you need to do once warning sirens are instructed. You'll also find important contact information. Knowledge of these information is important so you'll know who to contact in the event of an emergency.
Topics Covered
- What are ERPAs?
- ERPA A
- ERPA B
- ERPA C
- ERPA D
- What's new?
- Additional information

