All, As a result of our fuel leak, Vogtle has experienced some recent and unique challenges. Recognizing that there are other issues we haven't thought of, we were hoping to gain some insights based on experiences you have had recently. To provide an example of what we are asking about, here is an example of a recent issue experienced at Vogtle:
Vogtle has to vent containment 2-3 times per week due to slow pressure increases (this is typical for us and not related to the fuel leak). Since our fuel leak was identified last October, we have continued to vent containment due to containment pressure. Two weeks ago, multiple individuals from a particular building (not in the Radiation Controlled Area) were setting off exit monitors while attempting to exit the plant. Upon further investigation, it was determined that the containment venting performed that day had been done while the atmosphere was experiencing a temperature inversion. This lead to noble gases staying very low to the ground and "gassing up" individuals in a particular building (due to wind direction). RP was dispatched and there was no contamination present, it was simply short lived noble gases getting into people's clothing, similar to what commonly happens in a Radiation Controlled Area. Based on the example provided above, are there any unique issues or key learnings that you had from your most recent fuel leakers? Especially anything that didn't meet the reporting thresholds for ICES, etc. but still provided valuable learnings. Any experiences would be greatly appreciated. Regards, Michelle Williams RP Superintendent Support Services Plant Vogtle Units 1&2 706.848.4236 tel 919.770.7138 cell [southern_nucl_h_rgb]
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