Dry Cask Storage Frequently Asked Questions

Question Answer
Radiation Protection  
Are there standards for radiation exposure to members of the general public living around IPEC?

Yes, standards are published in 40 CFR 190, Environmental Radiation Protection Standards for Nuclear Power Operations and include the following annual dose equivalent limits for members of the general public:

  • < 25 millirems to the whole body
  • < 75 millirems to the thyroid, and
  • < 25 millirems to any other organ

www.access.gpo.gov/nara/cfr/waisidx_01/40cfr190_01.html

What type of radiation monitoring program will be in place for the ISFSI?

Environmental radiation monitoring will be continuous at several places in and around the ISFSI and along the site boundary. Calculations of expected radiation levels at the ISFSI indicate they will be well below applicable limits.

What are the expected radiation levels at the casks?

At Entergy’s James A. Fitzpatrick JAF plant in Oswego, NY the dose rate is < 2 millirem per hour at the wall of a fully loaded cask. Calculations of expected dose rates at IPEC indicate that we should see similar results here.

What is the expected collective worker dose per each transfer evolution? The total dose accumulation (pool to pad) at JAF was 2.4 Person-rem for the transfer of fuel to 3 casks, or an average of 0.8 Person-Rem/cask. Our calculations lead us to expect similar results at IPEC. The majority of that dose will be from cask loading within the Fuel Storage Building FSB.
How much radiation do people who live near IPEC receive from the plants? All people experience natural and man-made radiation. About 82 percent of our total exposure to radiation comes from natural sources: radon gas; outer space; rocks, soil etc. Radioactive elements in our own bodies account for 11 percent of our total exposure. The average annual radiation dose for a person living in the United States is 360 millirem. Theoretically, people who live within a 50-mile radius of a nuclear power plant receive an additional 0.009 millirem/year or 0.0025% of their total annual dose from the plant, although that amount is so small that it is impossible to verify by actual measurements. www.nei.org/index.asp?catnum=2&catid=54 )
What are the risks of exposure to low levels of radiation? According to the United States federal government, the health risks from small amounts of radiation, if any, are very low in comparison with other health risks. For instance, compared to receiving 100 millirem of radiation every year for your lifetime, smoking a pack of cigarettes a day is 400 times more risky, being 15 percent overweight is 100 times more risky, and driving a car 12,000 miles a year is 40 times more risky. There may, in fact, be no adverse health impacts from low levels of radiation.
Is there any scientific evidence that people living near nuclear power plants have an increased risk of cancer? No. The National Cancer Institute publication, “No Excess Mortality Risk Found in Counties with Nuclear Facilities” states there is “no general increased risk of death from cancer for people living in 107 U.S. counties containing or closely adjacent to 62 nuclear facilities.”
What impact will dry cask storage have on the public health of the surrounding community? The environmental and public health risks associated with irradiated fuel and placed in casks produced by Indian Point are well below federally mandated minimum requirements. These requirements are found in 10 CFR 72 and the cask system vendor’s Final Safety Analysis Report. The systems, structures and components that ensure these requirements are continually met, are maintained through a stringent program of continuous inspections, in-service and post-maintenance tests, preventive maintenance, and regulatory oversight. The Indian Point FSAR is available in the NRC on-line public reading room.

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