ML20211J044
| ML20211J044 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/27/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20211J034 | List: |
| References | |
| NUDOCS 8606260161 | |
| Download: ML20211J044 (3) | |
Text
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UNITED STATES I
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDFENT NO.118 TO FACILITY OPERATING LICENSE N0. OPR-50 METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER AND LIGHT C6MPANY PENNSYLVAhlA ELECTRIC COMPANY GPU h0 CLEAR CORPORATION THREE MILE ISLAFD NUCLEAR STATION, UNIT NO. 1 DOCKET N0. 50-289 INTRODUCTION By letter dated June 5,1981, as revised April 5,1983. July )10,1984, and October 2,1985, GPU Nuclear Corporation (GPU or the license requested amendment to the Technical Specifications (TSs) appended to Facility Operating License No. OPR-50 for the Three Mile Island Nuclear Station, Unit No.1 (TMI-1). The proposed amendment would change the TSs by removing the TSs related to the Reactor Vessel Materials Surveillance Program.
DISCUSSION The proposed amendment deletes those sectionc and pages of the present TMI-1 TSs containing the reporting reautrements, bases, and schedule for withdrawal of the TMI-1 reactor vessel surveillance capsules.
In lieu of the TS requirements, the licensee indicates that their surveillance program will comply with the requirements in B&W Topical Report BAW-1543, Rev. 2A, and 10 CFP 50, Appendix H.
10 CFR 50, Appendix H, was revised in the rederal Reatster on May 27, 1983, and became effective on July 26, 1983. The requirements for an integrated surveillance program are documented in Section II.C of this revision of Appendix H.
This section of Appendix H requires that each surveillance program be approved on a case-by-case basis by the Director. Office of Nuclear Reactor Regulation (NRP). Signature approval for this program has been delegated to the Project Director level in NPR.
TMI-1 is participating in the B&W Integrated Reactor Vescel Surveillance Program, which is documented in B&W Topical Report BAW-1543, Rev. 2A. A March 13, 1985 letter from C.O. Thomas to J.H. Taylor contained the staff i
review of the Topical Report. The staff concluded that the B&W integrated e
surveillance program, documented in Topical Report BAW 1543, Rev. 2A, meets the criteria in Section II.C of 10 CFR 50, Appendix H.
j Radiation damage is a function of neutron fluence and the amounts of residual 8606260161 860527 PDR ADOCK 05000289 i
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g elements (copper, nickel and phosphorus) in the material. Hence, an acceptable surveillance program must withdraw capsules at neutron fluence intervals representing the life of TMI-1 and must contain material that will monitor the effect of neutron irradiation on the limiting material in the TMI-1 reactor vessel. The required amount of neutron fluence to be received by each capsule in the surveillance program is documented in ASTM E 185-82.
According to B&W Topical Report BAW-1543, Rev. 2A, there will be at least five TMI-1 surveillance capsules that will be irradiated in the Crystal RiverUnit3NuclearGeneratingPlant,ggdtheywillbewi}gdrawpatneutron fluence (E71MeV) varying from 1.07 X 10 n/cm' tn 1.3 X 10 n/cm. The withdrawal schedule for the TMI-1 capsules in B&W Topical Report BAW-1543, Rev. 2A, meets, to the extent practical, the requirements in ASTM E 185-8?.
The weld metal in the capsules is identified as WF 25. The limiting weld metal in the TMI-1 reactor vessel beltline is identified as WF 8.
Weld metals WF 25 and WF 8 were crepared using the same type of filler wire and flux but different heats and lots. Since these weld metals are from different heats and lots, the amounts of residual elements in each weld will be different. However, the amounts of residual elements for each of the weld metals is reported in Babcock & Wilcox Topical Report BAW-1799, "B&W 177-FA Reactor Vessel Beltline Weld Chemistry Study", dated July 1983. By comparing the amounts of radiation damage predicated by the Regulatory Guide 1.99 to that observed for the capsule material, we will be able to effectively monitor radiation damage to the TMI-1 reactor vessel beltline.
EVALUATION The capsule withdrawal schedule meets, to the extent practical, the requirements in ASTM E 185-82 and the TMI-1 capsule weld metal will monitor the effect of neutron irradiation on the limiting weld metal in the TMI-1 reactor vessel beltline.
Based on the staff's approval of R&W Topical Report BAW-1543, Rev. 2A, and the above conclusion, we recommend approval of the integrated materials surveillance program as documented in B&W Topical Report BAW-1543, Rev. PA, 4
for TMI-1.
Since the licensee has agreed to comply with B&W Topical Report BAW-1543, Rev. 2A, and the requirements in 10 CFR 50, Appendix H, it is acceptable to delete the reporting requirements, bases, and withdrawal schedule for the THI-1 reactor vessel surveillance capsules from the TMI-1 TS.
ENVIRONMENTAL. CONSIDERATION This amendment involves changes in surveillance requirements and reporting requirements. We have determined that the amendment involves 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
l 3-in individual or cumulative occupational radiatinn exposure. The Commission has previously published a proposed finding that the amendment involves no significant hazards consideration and there has been no public comment on such finding. Accordingly, the amendment meets the eli criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9)gibility and (10).
Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.
t CONCLUSION We have concluded, based on the considerations discussed above, that (1) there i
is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activities will be conducted in compliance with the Commission's regulations, and the issuance l
of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Date: May 27,1986 Principal Contributor:
B. Elliot j
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