ML093270325

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E-mail from C. Taylor to R. Nimitz Re 8 Line
ML093270325
Person / Time
Site: Oyster Creek
Issue date: 06/08/2009
From: Chutima Taylor
Exelon Corp
To: Nimitz R
Division of Nuclear Materials Safety I
References
FOIA/PA-2009-0214
Download: ML093270325 (1)


Text

Nirnitz, Ronald From: Calvin.Taylor@exeloncorp.com Sent: Monday, June 08, 2009 2:39 PM To: Nimitz, Ronald

Subject:

8" line Ron, it is referenced as SS-4 in the report.

The 8-inch CS line (SS-4/CS-25) is the Hotwell Level Control supply line from the Condensate Pump discharge header to flow control valve V-2-17. This line is pressurized to between 200 psig to 250 psig during normal operation. Upon developing a through wall leak in the pipe, leakage would immediately exit the pipe and enter the surrounding soil. This line was assessed as a Low Risk factor since it is a direct buried CS line. This line was assessed a Medium Radiological Consequence factor since a leak could lead to an unmonitored release and a Medium Consequence factor since a significant leak could lead to a plant shutdown.

Calvin C. Taylor PrincipalRegulatory Specialist

'4:609.971.4031 TEAMOyster Creek Exelon Nuclear

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