ML100810249

Email from Richard Conatser, NRR to Steven Garry, NRR Fyi - TMI Contamination Event

ML100810249
Person / Time
Site:	Three Mile Island
Issue date:	11/24/2009
From:	Conatser R L Office of Nuclear Reactor Regulation
To:	Garry S M Office of Nuclear Reactor Regulation
References
FOIA/PA-2010-0118
Download: ML100810249 (1)

Text

Page 1 of 1 From: Conatser, Richard Sent: Tuesday, November 24, 2009 11:25 AM To: Garry, Steven

Subject:

RE: fyi -TMI contamination event Steve, Here are my answers below. Let's discuss.From: Garry, Steven Sent: Tuesday, November 24, 2009 10:16 AM To: Brown, Frederick Cc: Shoop, Undine; Pedersen, Roger; Conatser, Richard

Subject:

fyi -TMI contamination event fyi -The Pennsylvania Gov Rendell is asking the NRC Chairman some questions about the TMI contamination event, and the Chairman needs answers today. The Chairman evidently asked Rg I John White/Sam Collins for the answers. Rg I is asking us to support getting answers Questions:

1. What are the notification protocols?

1OCFR 50.72. In this case, 10 CFR50.72(b)(2)(xi).

2. How many contamination events are normal? The licensee had developed performance goals of less than X PCE. (Get X from Ron.) The number of contamination events during a RIFO will depend on the types of maintenance activities performed during the outage. A typical number of contamination events for a S/G replacement may be on the order of 10 to 20 PCEs.3. How many workers are exposed (normally)?

In a typical RFO, the typical worker entering the containment building receive some exposure, but all exposures are typically less than the NRCs limits for occupational workers.4. How many workers dose exceed 2 rem normally?

Only a very small fraction (significantly less than 1% of the occupational workers) receive exposrees in excess of 2 rem annually.mhtml :file://C

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