ML13322B018
| ML13322B018 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/24/1989 |
| From: | Nandy F SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-89-08, GL-89-8, NUDOCS 8907280379 | |
| Download: ML13322B018 (2) | |
Text
Southern California Edison Company P. 0.
BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 F. R. NANDY TELEPHONE MANAGER OF NUCLEAR LICENSING July 24, 1989 (818) 302-1896 U. S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D. C.
20555 Gentlemen:
Subject:
Docket Nos. 50-206, 50-361 and 50-362 Erosion/Corrosion-Induced Pipe Wall Thinning San Onofre Nuclear Generating Station, Unit 1, 2 & 3
References:
- 1.
NRC Generic Letter 89-08:
Erosion/Corrosion Induced Pipe Wall Thinning, dated May 2, 1989
- 2.
NUREG-1344, "Erosion/Corrosion-Induced Pipe Wall Thinning in U. S. Nuclear Power Plants,"
April, 1989 The purpose of this letter is to provide assurance that a program, consisting of systematic measures to ensure that erosion/corrosion does not lead to degradation of single phase and two phase high energy (greater than 200 degrees Fahrenheit) carbon steel systems, has been implemented at San Onofre Units 1, 2 and 3. This letter is provided in response to Reference 1.
The NRC audited the San Onofre erosion/corrosion program on August 30 and 31, 1988. The results of this inspection, as documented in Section 7.3 of Reference 2 (San Onofre is plant 7), were that "the licensee's erosion/corrosion monitoring program meets the intent of the NUMARC guidelines and is above industry standards" and that "appropriate controls are in place at the site."
Further, all of the recommendations made by the NRC inspection team have been incorporated into the San Onofre erosion/corrosion program.
In summary, San Onofre has implemented a long term erosion/corrosion monitoring program including formalized procedures and administrative controls that incorporated both NUMARC and EPRI guidelines. This program ensures that the structural integrity of all single and two phase high energy carbon steel systems is maintained.
8907280379 890724 PDR ADOCK 05000206 P
PDIC
Document Control Desk July 24, 1989 If you have any questions regarding this, please let me know.
Subscribed on this 24th day of July
, 1989.
Respectfully submitted, SOUTHERN CALIFORNIA EDISON COMPANY By:
F. R. Nandy Manager of Nuclear y censing Subscribed and sworn to before me this 24th day of July
, 1989.
OI~Y~BC-AL EA CAROL A. GOMEZ
-~
LOS ANGELES COUNTY Conn. Exoires Feb. 28, 1993 Notary Public in and for the yunty of Los Angeles, State of Califo*a My Commission expires 2/26/93 cc:
J. B.Martin, Regional Administrator, NRC Region V F. R. Huey, NRC Senior Resident Inspector, San Onofre Units 1, 2 and 3