ML20212A114
| ML20212A114 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 09/10/1999 |
| From: | Skay D NRC (Affiliation Not Assigned) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| References | |
| TAC-MA5879, TAC-MA5880, NUDOCS 9909160077 | |
| Download: ML20212A114 (5) | |
Text
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i Septembzr 10, 1999 Mr. Oliver D. Kingsley, President Nuclear Generation Group l
Commonwealth Edison Company Executive Towars West lli 1400 Opus Place, Suite.500 Downers Grove,IL 60515
SUBJECT:
LASALLE, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. MA5879 AND MA5880)
Dear Mr. Kingsley:
' During our review of your license amendment request dated May 19 1999, which proposed to relocate chemistry technical specifications (TS) from TS to licensee-controlled documents, we have identified the need for additional information. The questions in the enclosed request for additional information (RAI) were discussed with your staff on September 9,1999. It was agreed that the response would be provided by September 30, 1999, so that this amendment may be issued to support the upcoming Unit 1 refueling outage.
Sincerely, Original signed by:
Donna M. Skay, Project Manager, Section 2 Project Directorate lll Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50 373,50-374
Enclosure:
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2 WASHINGTON, D.C. 3080641001 September 10, 1999 Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Company Executive Towers West til 1400 Opus Place, Suite 500 Downers Grove,IL 60515
SUBJECT:
LASALLE, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. MA5879 AND MA5880)
Dear Mr. Kingsley:
During our review of your license amendment request dated May 19,1999, which proposed to relocate chemistry technical specifications (TS) from TS to licensee-controlled documents, we have identified the need for additional information. The questions in the enclosed request for additionalinformation (RAI) were discussed with your staff on l
. September 9,1999. It was agreed that the response would be provided by September 30, l
l 1999, so that this amendment may be issued to support the upcoming Unit 1 refueling outage.
Sincerely, D'on M. Skay, Project Manager ction 2 Project Directorate lli Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-373, 50-374
Enclosure:
RAI cc w/ encl: See next page
1 1
O. Kingsley LaSalle County Station Commonwealth Edison Company Units 1 and 2 cc:
Phillip P. Steptoe, Esquire Robert Cushing, Chief, Public Utilities Division Sidley and Austin Illinois Attorney General's Office One First National Plaza 100 W. Randolph Street Chicago, Illinois 60603 Chicago, Illinois 60601 Assistant Attomey General Document Control Desk-Licensing
- 100 W. Randolph St. Suite 12 Commonwealth Edison Company Chicago, Illinois 60601 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 U.S. NRC-LaSalle Resident inspectors Office 2605 N. 21st Road Commonwealth Edison Company Marseilles, Illinois 61341 9756 Site Vice President - LaSalle j
2601 N. 21st Road Chairman Marseilles, Illinois 61341-9757 LaSalle County Board of Supervisors LaSalle County Courthouse Mr. David Helwig Ottawa, Illinois 61350 Senior Vice President Commonwealth Edison Company Attorney General Executive Towers West 111 4
500 S. Second Street 1400 Opus Place, Suite 900 Springfield, Illinois 62701 Downers Grove, Illinois 60515 Chairman Mr. Christopher Crane Illinois Commerce Commission Vice President 527 E. Capitol Avenue, Lelana Building Commonwealth Edison Company f
Springfield, Illinois 62706-Executive Towers West 111 1400 Opus Place, Suite 900 lilinois Department of Nuclear Safety Downers Grove, Illinois 60515 Office of Nuclear Facility Safety 1035 Outer Park Drive Mr. R. M. Krich Springfield, Illinois 62704 Vice President - Regulatory Sentices Commo'nwealth Edison Company Regional Administrator Executive Towers West til U.S. NRC, Region lli 1400 Opus Place, Suite 500 801 Warrenville Road Downers Grove, Illinois 60515 Lisle, Illinois 60532-4351 Commonwealth Edison Company Commonwealth Edison Company Reg., Assurance Supervisor - LaSalle LaSalle Station Manager 2601 N.'21st Road 2601 N. 21st Road Marseilles, Illinois 61341-9757 Marseilles, Illinois 61341-9757
t 9
'i REQUEST FOR ADDITIONAL INFORMATION (RAI) RELATED TO CHEMISTRY TECHNICAL SPECIFICATION AMENDMENT REQUEST FOR LASALLE UNITS 1 AND 2 (TAC NOS. MA5879 AND MA5880)
Backaround and Basis for RAl: In the application of noble metal chemical addition (NMCA), the reactor coolant water chemistry, including conductivity, is expected to change and has the potential to exceed current Technical Specification (TS) limits. Extensive intergranular stress-corrosion cracking (IGSCC) has been found in many BWR plants. The extent of IGSCC in BWRs depends greatly on the water chemistry of the reactor coolant. To ensure the structural integrity of the components degraded by IGSCC, certain limiting water chsmistry conditions
. such as conductivity and chloride and sulfate content are required to be met in order to support the use of the assumed crack growth rates in the plant specific flaw evaluations. The proposed
]
TS amendment would relocate reactor coolant water chemistry TS requirements to licensee controlled documents. Since these TS have been part of the basis used to justify operation with IGSCC, we have several questions about the chemistry controls that will be in place after the chemistry TS are relocated.
- Questions '
(1)
Describe in detail what programs will be in place to monitor and control water chemistry during the NMCA process. Include a description of the monitoring and controls that will be in place during the NMCA process for ionic species such as chloride, sulphate, and others that would accelerate IGSCC.
(2)
Describe in detail what programs will be in place to monitor and control water chemistry during normal operations. Include a description of the monitoring and controls to ensure the chemistry environment is consistent with that used to generate the data for crack growth rates.
September 10, 1999 Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Company Executive Towars West lli 1400 Opus Place, Suite.500 Downers Grove,IL 60515
SUBJECT:
LASALLE, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. MA5879 AND MA5880)
Dear Mr. Kingsley:
During our review of your license amendment request dated May 19,1999, which proposed to relocate chemistry technical specifications (TS) from TS to licensee-controlled documents, we have identified the need for additionalinformation. The questions in the enclosed request for additional information (RAI) were discussed with your staff on September 9,1999. It was agreed that the response would be provided by September 30, 1999, so that this amendment may be issued to support the upcoming Unit 1 refueling outage.
Sincerely, Original signed by:
Donna M. Skay, Project Manager, Section 2 Project Directorate lil Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-373, 50-374
Enclosure:
RAI cc w/ encl: See next page Distribution:
Docket File PUBLIC PDill/2 r/f J. Zwolinski/S. Black A. Mendiola C. Moore D. Skay OGC, O15B18 ACRS, T2E26 M. Leach, Rill DOCUMENT NAME: G:\\Pdiii.2\\lasalle\\rala5879.wpd Te receive e copy of this document. Indicate in the box: 'C' = Copy without enclosures *E" = Copy vAth enclosures "N" = No copy OFFICE - PM:PDill/2 _
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