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Entered date | Event description | |
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ENS 52449 | 20 December 2016 19:45:00 | At 1830 EST on 20 December, 2016 the Massachusetts Department of Environmental Protection and the Plymouth Massachusetts Fire Department were notified of a Hydrogen release in accordance with plant procedures and 310CMR40.300, Massachusetts Contingency Plan Notification for Oil and Hazardous Material; Identification and Listing of Oil and Hazardous Material, due to a release of hydrogen gas to the environment exceeding the reportable quantity of ten pounds. The release, which is an expected part of a routine plant start-up was from the generator hydrogen cooling system. This event posed no danger to the health and safety of plant personnel or members of the general public. The NRC Resident Inspector has been notified. |