ML061710234

NRC Email from Shah to Roach, Licensee Identified Past Blowline Leak Near River - Tritium Update

ML061710234
Person / Time
Site:	Braidwood
Issue date:	12/21/2005
From:	Nirodh Shah NRC/RGN-III
To:	Gregory Roach NRC/RGN-III
References
FOIA/PA-2006-0115
Download: ML061710234 (2)

Text

Iirodh SHih -Fwd:-Licensee identified past blowline leak near river--Tritium. update Page 1 From: Nirodh Shah ( *"

To: Gregory Roach Date: 12/21/05 1:17PM

Subject:

Fwd: Licensee identified past blowline leak near river--Tritium update Greg, FYI. The CRs are in the tritium file.

N Information in this record was deleted in accordanceWith the Freedom of Informalloht Act, exemptions C 6 Al

irodh Shah - Licensee identified past blowline leak near river--Tritium update Page. I From: Nirodh Shah To: Steven Orth Date: 12/21/05 1:14PM

Subject:

Licensee identified past blowline leak near river--Tritium update Steve, on December 20, a non-licensed operator identified a pool of water (about 1.-2 ft in diameter) near.

the the river screen house. The pool was located above a buried sample line running from thecirculating water blowdown line to the river screen house. The licensee suspects that the water may originate from this line. The sample'line is a 2 inch diameter carbon steel pipe. The pool of water was located on property owned by Exelon.

The licensee determined that this sample line has had past problems with leakage. Although the work history was limited, the licensee identified that the line was likely plugged and repaired several times between 1986-1993. It was believed that this line was repaired and/or abandoned in place, but no clear evidence of this has yet been found.

The licensee was taking steps to isolate the sample line (if possit vicinity of the line to determine if past tritium leakage'had occurre Iwill fax you the CRs .documenting this issue and ask that you forward them to the other members of the tritium team(including Mac Chawla if he is not already part of the team).'

thanks...N CC: John House; John Robbins; Mahesh Chawla; Richard Skokowski

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