ML101230069
| ML101230069 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/30/2009 |
| From: | Javier Brand NRC Region 1 |
| To: | Michael Brown Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2010-0118 | |
| Download: ML101230069 (2) | |
Text
Brand, Javier From:
Brand, Javier Sent:
Monday, November 30, 2009 3:20 PM To:
Brown, Michael
Subject:
RE: (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL OK. Thanks From: Brown, Michael Sent: Monday, November 30, 2009 3:20 PM To: Brand, Javier
Subject:
RE: (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL Thanks, that's what I thought but I figured I should check prior to telling somebody else.
Mike From: Brand, Javier Sent: Monday, November 30, 2009 3:19 PM To: Brown, Michael
Subject:
RE: (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL No, these calls are only to the residents. The calls are not 50.72, since thy are for lower threshold items that 2
do not meet the criteria for official 50.72.
From: Brown, Michael
\\
Sent: Monday, November 30, 2009 12:33 PM To: Kern,, David; Brand, Javier; Bellamy, Ronald; Barber, Scott
Subject:
FW: (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL For this new 60 minute notification to the NRC will it be to the Resident, Region or via 50.72?
Any help is appreciated.
- Thanks, Mike From: Garry, Steven Sent: Monday, November 30, 2009 12:31 PM To: Brown, Michael Cc: Pedersen, Roger; Conatser, Richard
Subject:
FW: (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL Wow!! The licensee has established new protocol to notify NRC and State within 60 minutes of any alarm.
Mike, do you know if this is a notification to the Resident, the Region, or via a 50.72?
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Steve From: Brown, Michael Sent: Wednesday, November 25, 2009 1:35 PM To: Bettle, Jerome; Temple, Jeffrey; Garry, Steven; Boggi, Michael; Blumberg, Mark; Burnell, Scott
Subject:
(Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL 2.) (Update) TMI - RADIATION RELEASE IN CONTAINMENT ASSOCIATED WITH STEAM GENERATOR REMOVAL A-OTSG has.been transported to mausoleum; B-OTSG removal is in progress. Activities are in progress to move it to the shipping platform for removal from containment TMI experienced 4 additional alarms associated with AMS-4s (airborne radiation monitors). Local work areas were evacuated until the condition was understood and resolved. The containment building was maintained under negative pressure. Details of the 4 additional alarms are as follows:
- 1) 2219 /11/24 - One occurred on top of the B "D" ring 365 ft in Containment. Confirmatory sampling showed no airborne. Low flow alarm.
- 2) 2325/11/24 - Outside personnel hatch in auxiliary building.area. Cause was radon inversion.
3/4) 0445/0550/11/25-AMS alarmed (same machine) at B "D" ring 281 ft elevation. Sampling showed no airborne. Cause attributed to lifting of B steam generator resulting in elevated dose rates. No airborne identified.
Workers were briefed about local evacuation situation from last night and the morning. The NRC has confirmed no airborne radiation issues existed; in addition, the NRC is reviewing containment evacuation procedures and policy today.
The licensee has established new protocol to notify NRC and State within 60 minutes of any alarm.
The State was notified of the conditions last night. None of these conditions was the result of airborne radioactivity. (Send update to TRGs for Containment: Jerome Bettle, Emergency Prepardness: Jeffrey Temple, Health Physics: Steven Garry, Human Performance: Michael Boggi, Dose Assessment: Mark Blumberg and Public Affairs: Scott Burnell). Assigned to Mike Brown.
I Mike Brown.
Reactor Systems Engineer NRR/DIRS/IOEB email - michael.brown@nrc.gov ghone - 301-415-4096 b)(6) office 7E11 2