ML18106A655
| ML18106A655 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 06/11/1998 |
| From: | Milano P NRC (Affiliation Not Assigned) |
| To: | Keiser H Public Service Enterprise Group |
| References | |
| TAC-MA1261, TAC-MA1262, NUDOCS 9806180004 | |
| Download: ML18106A655 (4) | |
Text
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UNITED STATES
. NUCLEAR REGULATORY COMMISSION Mr. Harold W. Keiser Chief Nuclear Officer & President-Nuclear Bu.siness Unit Public Service Electric & Gas Company
- Post Office Box 236 Hancocks Bridge, NJ 08038 WASHINGTON, D.C. 20555-0001 June 11, 1998
SUBJECT:
MEASUREMENT OF CHLORIDE CONCENTRATION IN SYSTEMS CONTAINING STAGNANT BORATED WATER - SALEM NUCLEAR GENERATING STATION, UNIT NOS.. 1 AND 2 (TAC NOS. MA1261 AND MA1262)
Dear Mr. Keiser:
In a letter dated March 2, 1979, Public Service Electric and Gas Company (PSE&G) responded to the U.$. Nuclear Regulatory Commission.'s (NRC) IE Circular No. 76-06, "Stre~s Corrosion Cracks in Stagnant, Low Pressure Piping Containing Boric Acid Solution at PWRs," and committed to periodically sample and analyze the fluid in affected systems for chlorides and oxygen. In its letter dated December 27, 1979, responding to NRC Bulletin 79-17, "Pipe Cracks in Stagnant Water Systems at PWR Plants," Revision 1, PSE&G *limited the commitment to sampling and analyzing only for chlorides. PSE&G justified its decision by indicating that all the portions of the plant containing stagnant borated fluids are supplied by oxygen saturated water and the only variable in the corrosion control program is chloride concentration.
In a letter dated March 16, 1998, PSE&G stated that it was now discontinuing the above commitment because (1) it has observed that the concentration of chloride in dead leg fluids was well below the level which could cause any significant corrosion damage over the 10 years, and (2) the sampling program exposes plant personnel to increased radiation doses with no observable technical or safety benefit.
The NRC staff audited PSE&G's chloride sampling records for both units. The staff found that, during the 10-year period in which samples were taken, most of the recorded chloride concentrations were below 50 parts-per-billion. A few higher values were attributed by PSE&G to inaccuracy in measurement, and this fact ~as confirmed by the resampling results. At this low concentration of chloride, even the oxygen saturated solution will not produce significant corrosion damage.
Based on this evaluation, the NRC staff concludes that corrosion damage due to the presence of chloride in the systems containing stagnant borated water is unlikely. Therefore, the NRC staff finds that PSE&G's commitment change to eliminate chloride sampling and analysis is acceptable.
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If you have any questions regarding this matter, please contact me at (301) 415-1457.
Docket Nos. 50-272/50-311 cc: See next page DISTRIBUTION:
Docket File PUBLIC PDl-2 Reading JZwolinski RCapra PMilano TClark TSullivan KParczewski OGC ACRS WHehl, RGN-1 Jlinville, RGN-1 OFFICE NAME DATE
&!<6'198 OFFICIAL RECORD COPY DOCUMENT NAME: SA1261.GEN Sincerely, Isl Patrick D. Milano, Senior Project Manager Project Directorate 1-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation EMCB/C A Cv I Q/98
If you have any questions regarding this matter, please contact me at (301) 415-1457.
Docket Nos. 50-272/50-311 cc: See next page Sincerely, Patrick D. Milano, Senior Project Manager Project Directorate 1-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
r Mr. Harold W. Keiser Public Service Electric & Gas Company cc:
Jeffrie J. Keenan, Esquire Nuclear Business Unit - N21 P.O. Box 236 Hancocks Bridge, NJ 08038 General Manager - Salem Operations Salem Nuclear Generating Station P.O. Box236 Hancocks Bridge, NJ 08038 Mr. Louis Storz Sr. Vice President - Nuclear Operations Nuclear Department P.O. Box 236 Hancocks Bridge, NJ 08038 Senior Resident Inspector Salem Nuclear Generating Station U.S. Nuclear Regulatory Commission Drawer 0509 Hancocks Bridge, NJ 08038 Dr. Jill Lipoti, Asst. Director Radiation Protection Programs NJ Department of Environmental Protection and Energy CN 415 Trenton, NJ 08625-0415 Maryland Office of People's Counsel 6 St. Paul Street, 21st Floor Suite 2102 Baltimore, MD 21202 Ms. R. A Kankus Joint Owner Affairs PECO Energy Company 965 Chesterbrook Blvd., 63C-5 Wayne, PA 19087 Mr. Elbert Simpson Senior Vice President-Nuclear Eng!neering Nuclear Department P.O. Box 236 Hancocks Bridge, NJ 08038 Salem Nuclear Generating Station, Units 1 and 2 Richard Hartung Electric Service Evaluation Board of Regulatory Commissioners 2 Gateway Center, Tenth Floor Newark, NJ 07102 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Lower Alloways Creek Township c/o Mary 0. Henderson, Clerk Municipal Building, P.O. Box 157 Hancocks Bridge, NJ 08038 Manager-Licensing and Regulation Nuclear Busienss Unit - N21 P.O. Box236
- Hancocks Bridge, NJ 08038 Mr. David Wersan Assistant Consumer Advocate Office of Consumer Advocate 1425 Strawberry Square Harrisburg, PA 17120 Manager - Joint Generation Atlantic Energy 6801 Black Horse Pike Egg Harbor Twp., NJ 08234-4130 Carl D. Schaefer External Operations - Nuclear Delmarva Power & Light Company P.O. Box 231 Wilmington, DE 19899 Public Service Commission of Maryland Engineering Division Chief Engineer 6 St. Paul Centre Baltimore, MD 21202-6806