08-09-2023 Council Packet - Laserfiche WebLink

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Ramsey County │ Annex C: Ingestion Pathway 2 products within the 50-mile IPZ. These plans include the State of Minnesota’s Radiological Emergency Preparedness (REP) Plan, specific facility plans and county and municipal plans. The initial response period called the Early Phase or Plume Phase of an incident focuses initially on the 10-mile EPZ around each plant and is concerned primarily with a release from the plant that is either imminent or in progress. The state coordinates and implements actions to: • Protect the public by implementing Protective Action Decisions (PADs) to evacuate or shelter areas as needed. • Implement measures to protect livestock and food products from contamination. • Reduce the spread of contamination. A release from a nuclear generating plant will disperse as it travels downwind, leaving higher concentrations of contaminated material closer to the plant and lower levels further away. The lower concentrations that are deposited further downwind present potential issues for low-level contamination that will impact the ingestion counties. The issues impacting ingestion counties become prominent in the later Ingestion Phase of the incident (day two). During this period, the focus is on: • Defining the area/boundaries of the low-level contamination. • Implementing Protective Action Decisions protecting food supply from contamination. • Restricting the movement of contaminated animals and food products (especially milk and dairy products). • Implementing Protective Action Decisions protecting the public from long-term low-level radiation exposure (relocation if needed). • Decontaminating areas of critical importance (water treatment facilities, major roads/bridges, etc.). 1.2 Scope 1.2.1 INGESTION COUNTY MAP Figure 1 shows both the 10-mile EPZs and 50-mile IPZs and the counties impacted by the Prairie Island and Monticello Nuclear Generating Plants.