WASHINGTON, June 27 -- The Nuclear Regulatory Commission issued the following event notification (No. 57191) involving NRC Issues Event Notification for U.S. Geological Survey, Denver, Colorado:

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Facility: U. S. Geological Survey (USGS)

RX Type: 1000 Kw Triga Mark I

Region: 0

City: Denver

State: CO

County: Denver

License #: R-113

Agreement: Y

Docket: 05000274