On February 17, 2011, the NRC issued a Notice of Violation to Bristol Hospital, Inc. for a Severity Level III violation involving the failure to notify the NRC Operations Center of two medical events, in accordance with 10 CFR 35.3045(c), which requires a report within the next calendar day of discovery. Specifically, on January 12, 2010, Bristol Hospital experienced two medical events involving patients receiving less than the intended prescribed dose during two different permanent prostrate brachytherapy seed implants. The administered doses differed from the prescribed doses by 50 rem to an organ or tissue, and the total doses differed by greater than 20 percent from the prescribed doses. As of March 1, 2010, Bristol Hospital personnel had information available to determine that these medical events had occurred on January 12, 2010, and should have therefore reported the events by March 2, 2010. However, the licensee did not verbally report the events to the NRC until June 2, 1010 following NRC questioning of the circumstances during an inspection.