ML20203B522
| ML20203B522 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 02/08/1999 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20203B508 | List: |
| References | |
| NUDOCS 9902100332 | |
| Download: ML20203B522 (2) | |
Text
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- SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NOS.102 AND 89 TO FACILITY OPERATING LICENSE NOS. NPF-76 AND NPF-80 STP NUCLEAR OPERATING COMPANY DOCKET NOS. 50-498 AND 50-499 SOUTH TEXAS PROJECT. UNITS 1 AND 2
1.0 INTRODUCTION
By application dated October 29,1998, STP Nuclear Operating Company, et.al., (the licensee) requested changes to the Technical Specifications (TSs) (Appendix A to Facility Operating License Nos. NPF-76 and NPF-80) for the South Texas Project, Units 1 and 2 (STP). The proposed charges would relocate portions of TS 4.8.1.1.2.g, regarding maintenance of the diesel generator fuel oil storage tanks to the STP Technical Requirements Manual.
2.0 BACKGROUND
Section 18Pa of the Atomic Energy Act (the 'Act") requires that applicants for nuclear power plant operation licenses state TSs and that these TSs be included as a part of the license. The Commission's regulatory requirements related to the content of TSs are set forth in 10 CFR 50.36. That regulation requires that the TSs include items in five specific categories, including (1) safety limits, limiting safety system settings and lim l ting control settings; (2) limiting conditions for operailon; (3) surveillance requirements; (4) design features; and (5) administrative controls and states also that the Commission may include additional TSs as it finds to be appropriate. However, the regulation does not specify the particular TSs to be included in a plant's license.
The Commission has provided guidance for the contents of TS limiting conditions for operation (LCO) and associated requirements in its " Final Policy Statement on Technical Specifications improvements for Nuclear Power Reactors" (" Final Policy Statement"),58 FR 39132 (July 22, 1993), which was codified in 10 CFR 50.36(c)(2)(li). The four criteria to be used in determining whether a particular matter is required to be included in the TS LCO, are as follows: (1) installed instrumentation that is used to detect, and ind:cate in the control room, a significant abnormal degradation ef the reactor coolant pressure boundary; (2) a process variable design feature, or operating restriction that is an initial condition of a design basis accident or transient analysis that either assumes the failure of or presents a challenge to the integrity of a fission product barrier; (3) a structure, system, or component that is part of the primary success path and which functions or actuates to mitigate a design basis accident or transient that either assumes the failure of or presents a challenge to the integrity 4f a fission product barrier; or (4) a structure, system, or component which operating experience or probabilistic safety assessment has shown to be significant to public health and safety.
9902100332 990200 PDR ADOCK 05000498 P
2 3.0 EVALUATION Portions of existing TS 4.8.1.1.2.g surveillance requirements for diesel generator fuel oil storage tanks, specifically the 10 year surveillance requirements to clean each fuel tank with sodium hypochlorite solution, or equivalent, and the requirement to perform a pressure test on the diesel generator fuel oil system piping are relocated to the Technical Requirements Manual (TRM). Rather than being operability requirements, these surveillances are preventive maintenance requirements or specify details about how the maintenance shou!d be performed.
in addition, the pressure test of the fuel oil system is already covered by ASME Code Section XI, Article IWD-5000.
These descriptive details do not meet the 10 CFR 50.36 criteria for surveillance requirements.
Since the licensee has incorporated the TRM, by reference, into the Updated Final Safety Analysis Report, changes to the _TRM would be controlled in accordance with approved station procedures and the requirements of 10 CFR 50.59. The staff, therefore, finds that sufficient regulatory controls exist. Accordingly, the staff has concluded that these requirements may be relocated from the TSs to the licensee's TRM.
In the October 29,1998, application, the licensee provided the revised TRM pages that incorporate portions of the surveillance requirements from TS 4.8.1.1.2.g. The staff has reviewed the TRM change and has verified that the information from TS 4.8.1.1.2.g has been appropriately relocated to the TRM.
4.0 STATE CONSULTATION
in accordance with the Commission's regulations, the Texas State official was notified of the proposed issuance of the amendments. The State official had no comments.
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5.0 ENVIRONMENTAL CONSIDERATION
The amendments change a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and change surveillance requirements. The NRC staff has determined that the amendments involve no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendments involve no significant hazards consideration, and there has been no public comment on such finding (63 FR 69347). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.
6.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by
. operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor: Marsha Gamberoni Date: February 8, 1999
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