ML14191A410
| ML14191A410 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 08/14/1989 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | CAROLINA POWER & LIGHT CO. |
| Shared Package | |
| ML14191A408 | List: |
| References | |
| NUDOCS 8908220323 | |
| Download: ML14191A410 (4) | |
Text
0 7590-01 UNITED STATES NUCLEAR REGULATORY COMISSION In the Matter of
)
CAROLINA POWER & LIGHT COMPANY
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Docket No. 50-261 H. B. Robinson Steam Electric Plant,
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Unit No.2
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PARTIAL EXEMPTION
- 1.
Carolina Power & Light Company (the licensee) is the holder of Facility.
Operating License No.
DPR-23, which authorizes operation of the H. B. Robinson Steam Electric Plant, Unit No. 2. The license provides, among other things, that the facility is subject to all rules, regulations and Orders of the Nuclear Regulatory Commission (the Commission) now or hereafter in affect.
The facility is a Westinghouse pressurized water reactor located at the licensee's site in Darlington County, Scuth Carolina.
II.
Paragraph III.A.1(a) of Appendix J to 10 CFR Part 50 requires, in part, that if during a Type A test (Containment Integrated Leakage Rate Test or CILRT) potentially excessive leakage paths are identified which will interfere with satisfactory completion of the test, the Type A test shall be terminated and local leakage testing performed on the paths of concern.
By letter dated June 30, 1983, and clarified by letter dated September 14, 1987, the licensee requested a waiver of the above mentioned Appendix V requirement to terminate the Type A testing.
Instead, the licensee proposed an 890822)323 890814 PDR ADOCK 05000261 P
PDIC
0
-2 alternative which would allow the satisfactory completion of the CILRT. The licensee also requested that the acceptance criterion for "as found" Type A tests be set at the same value as the maximum allowable leakage rate, La or the corresponding Lt, as defined in Paragraphs II.L and II.M of Appendix J.
The Commission has reviewed the licensee's exemption request and the details of the Commission's evaluation are contained in the related Safety Evaluation issued concurrently with this partial exemption. The Commission review concludes that the licensee's approach for continuing Type A containment leakage rate testing when excessive leakage is identifed satisfies the intent of the regulation and is, therefore, technically acceptable. Also, the proposed "as found" Type A test acceptance criterion of La or Lt, is acceptable, with the "as left" allowable leakage criterion to remain at 0.75 Lt as stated in the Technical Specifications.
III.
The Commission has determined that, pursuant to 10 CFR 50.12, this partial exemption is authorized by law, will not present an undue risk to the public health and safety, and is consistent with the common defense and security. The Commission has further determined that special circumstances, as provided in 10 CFR 50.12(a)(2)(ii), are present justifying the partial exemption. Namely, application of the regulation in the particular circumstances is not necessary to achieve its underlying purpose, which is to ensure that accurate and con servative methods are used to assess the results of containment leak rate tests.
Accordingly, the Commission hereby grants a partial exemption from Paragraph III.A.1(a) of Appendix J to 10 CFR Part 50 to allow the licensee to
-3 implement an alternative approach, so that the CILRT can continue if excessive leakage is determined. Specifically, when excessive leakage is experienced during a Type A test, significant leaks will be identified and isolated from the test. Penetrations so isolated will be capable of local leakage rate testing. Once these leaks have been isolated, the Type A test will be continued.
In addition, this Exemption permits the licensee to use La, the maximum allowable leakage rate, as the acceptance criterion for the "as found" Type A test results.
Pursuant to 10 CFR 51.32, the Commission has determined that the granting of this partial exemption will have no significant impact on the quality of the human environment (54 FR 28132).
The partial exemption is effective upon issuance.
FOR THE NUCLEAR REGULATORY COMMISSION Original Signed By:
Steven A. Varga, Director Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation Dated at Rockville, Maryland this 14th day of August!1989.
- SEE PREVIOUS CONCURRENCES LA; PM:PDII-1 1
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Mr. L. W. Eury H. B. Robinson Steam Electric Carolina Power & Light Company Plant, Unit No. 2 cc:
Mr. R. E. Jones, General Counsel Mr. Dayne H. Brown, Chief Carolina Power & Light Company Radiation Protection Branch P. 0. Box 1551 Division of Facility Services Raleigh, North Carolina 27602 Department of Human Resources 701 Barbour Drive Raleigh, North Carolina 27603-2008 Mr. H. A. Cole Special Deputy Attorney General Mr. Robert P. Gruber State of North Carolina Executive Director P. 0. Box 629 Public Staff - NCUC Raleigh, North Carolina 27602 P. 0. Box 29520 Raleigh, North Carolina 27626-0520 U.S. Nuclear Regulatory Commission Mr. C. R. Dietz Resident Inspector's Office Manager, Robinson Nuclear Project H. B. Robinson Steam Electric Plant Department Route 5, Box 413 H. B. Robinson Steam Electric Plant Hartsville, South Carolina 29550 P. 0. Box 790 Hartsville, South Carolina 29550 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Mr. Heyward G. Shealy, Chief 101 Marietta Street Bureau of Radiological Health Suite 2900 South Carolina Department of Health Atlanta, Georgia 30323 and Environmental Control 2600 Bull Street Mr. R. Morgan Columbia, South Carolina 29201 General Manager H. B. Robinson Steam Electric Plant P. 0. Box 790 Hartsville, South Carolina 29550