Duke Energy Florida, Inc. (Crystal River Unit 3 – 2014 Annual Radiological Environmental Operating Report to U.S. NRC), May 5, 2015

Duke Energy Florida, Inc. (Crystal River Unit 3 – 2014 Annual Radiological Environmental Operating Report to U.S. NRC), May 5, 2015 (emphasis added):

• In 2011 there were positively measured results of iodine and cesium… These measurements are a direct result of [the] Fukushima nuclear plants… The Japanese event also affected broad leaf vegetation sample media throughout the year as long-lived radionuclides (Cs-137) were released at Fukushima multiple times.
• The vegetation measurements in 2014 are still affected by the Fukushima event due to the long-lived radionuclides deposited. The vegetation control sample station located in Orlando, Fl. is also experiencing similar Cs-137 deposition on the broad leaf sample media…
• In 2014, sixteen of twenty four indicator [vegetation] samples had measurable amounts of cesium-137 [up to] 159 pCi/kg… The cesium-137 values are similar in concentration as compared to samples collected in 2013 which experienced radionuclide deposition as a result of the Fukushima earthquake event…
• In 2013, fifteen of twenty four indicator samples had measurable amounts of cesium-137 [up to] 147 pCi/kg… Orlando, Fl. also had measurable amounts of cesium-137 [up to] 258 pCi/kg. The cesium-137 values are similar in concentration as compared to samples collected in 2012 which experienced radionuclide deposition as a result of the Fukushima earthquake event…
• In 2012, thirteen of twenty four indicator samples had measurable amounts of cesium-137 [up to] 172 pCi/kg… Orlando, Fl. also had measurable amounts of cesium-137 [up to] 201 pCi/kg. The cesium-137 values are similar in concentration as compared to samples collected in 2011 which experienced radionuclide deposition as a result of the Fukushima earthquake event…
• In 2014… Cs-137 (in grapefruit) at a concentration of 4 pCi/kg. It is not unusual to periodically see Cs-137 in citrus samples due to widespread deposition of Cs-137 from fallout due to past weapons testing and more recent from the Fukushima earthquake and tsunami event…
• Broad Leaf Vegetation [samples taken during 2014 with] elevated Cs-137 values… are a direct result of the Fukushima earthquake and tsunami event that occurred in 2011.http://pbadupws.nrc.gov/docs/ML1513/ML15134A231.pdf