Orange County Insight December 2022

Integrated Public Alert and Warning System Updates

By: Dominion Energy

Dominion Energy in partnership with Virginia Department of Emergency Management (VDEM) will replace the current North Anna Power Station and Surry Power Station alert sirens with the Integrated Public Alert and Warning System (IPAWS) on February 1, 2023.

As a reminder, IPAWS will be the primary system used to both alert and notify the public should a general emergency take place at North Anna or Surry power stations. IPAWS uses two methods for alerting, similar to Amber Alerts, and notifying the public: Wireless Emergency Alerts (WEA) to alert and share messaging to cellphones and the Emergency Alert System (EAS) to notify and share messaging through television and radio broadcasting. IPAWS - WEA is the primary Alert method and IPAWS - EAS is the primary Notification method.

Both Dominion Energy and VDEM look forward to the ability to provide real - time information to the public in the event of an emergency. Backup alerting systems will be in place with the addition of outreach to residential and business phones (landlines) and notification to recreational areas such as parks and bodies of water.

Public outreach will begin mid - January 2023 and continue throughout the month of February to ensure those that live, work, and recreate near North Anna and Surry power stations are aware of and understand the replacement of emergency alert sirens with IPAWS. This will include a mailing to property owners within the 10 - mile Emergency Preparedness Zone (EPZ) for each station. Local media outlets and community organizations will be briefed. Newspaper, digital, and radio advertisement campaigns will be conducted. Outreach will also continue into the summer season when transient populations increase.

Additional information may be found at our website, https://www.dominionenergy.com/projects - and - facilities/nuclear - facilities/alert - transition - faqs, or at our North Anna Nuclear Information Center and Surry Nuclear Information Center. As always, please do not hesitate to reach out with any questions or concerns you may have.

Page 14 | December, 2022

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