ML15005A270

Edwin I. Hatch Nuclear Plant, Unit 2, Request for Additional Information (TAC No. MF4860)

ML15005A270
Person / Time
Site:	Hatch
Issue date:	01/13/2015
From:	Martin R E Plant Licensing Branch II
To:	Pierce C R Southern Nuclear Operating Co
Martin R E
References
TAC MF4860
Download: ML15005A270 (3)

Text

Mr. C. R. Pierce Regulatory Affairs Director UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 January 13, 2015 Southern Nuclear Operating Company, Inc. P. 0. Box 1295/Bin-038 Birmingham, AL 35201-1295 SUBJECT: 'EDWIN I. HATCH NUCLEAR PLANT, UNIT 2-REQUEST FOR ADDITIONAL INFORMATION (TAG NO. MF4860) Dear Mr. Pierce: By letter dated Septemeber 19, 2014, the Southern Nuclear Operating Company, Inc. (SNC), submitted request for relief HNP-ISI-AL T-HDPE-01, which requests authorization to replace buried steel Plant Service Water piping with High Density Polyethylene (HOPE) piping for the duration of the license at Hatch Nuclear Plant, Unit 2. The U.S. Nuclear Regulatory Commission (NRC) staff has determined that additional information is needed as discussed in the Enclosure. We request that SNC respond within 45 days of the date of this letter. Please note that the NRC staffs review is continuing and further requests for information may be developed. Docket No.: 50-366 cc: Distribution via Listserv Sincerely, f Martin, Senior Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation REQUEST FOR ADDITIONAL INFORMATION PROPOSED INSERVICE INSPECTION ALTERNATIVE HNP-ISI-ALT-HDPE-01, REV. 2 HATCH NUCLEAR PLANT, UNIT 2 SOUTHERN NUCLEAR OPERATING COMPANY, INC. DOCKET NO. 50-366 The U.S. Nuclear Regulatory Commission (NRC) staff reviewed the Southern Nuclear Operating Company, Inc. (SNC), relief request HNP-ISI-AL T-HDPE-01, dated Septemeber 19, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14266A183), which requests authorization to replace buried steel Plant Service Water piping with High Density Polyethylene (HOPE) piping for the duration of the license at Hatch Nuclear Plant, Unit 2. The NRC staff has reviewed the request and determined that additional information is necessary to complete the review. 1. Describe the quality control process for embedding flaws for the proposed Ultrasonic Testing qualification program. How will you determine location of flaws, etc? 2. For the High Speed Tensile Test and the Side Bend Test, you state that four test specimens will be removed at intervals approximately 90 degrees apart for each test. Will these be at random locations or at cardinal locations? 3. Paragraph 4231 (c) states for items with different DRs, the item with the smaller DR will be counter bored and tapered to equal the wall thickness, or its outside diameter will be machined and tapered to equal the wall thickness of the item with the larger DR. Please specify NDE techniques and measurements that will be incorporated to ass_ure the required DRs are met and that machined surface is free of indication and possible porosity. 4. Paragraph 4412(a)(1) should include that the joint in addition to the surface heaters used for fusing will be free of scale, rust, oil, grease, dust, fine particulates and other deleterious material. In addition, cleaners that form a film (acetone) shall not be used on the joint preparation . . 5. Paragraph 5114 (Qualification of Volumetric Examination Procedures)-should state that the qualification test should be blind. 6. Table 3-254-Paragraph 3-403.4 Cross Sectional Area is an essential variaple. The cross sectional area = diameter x thickness and both of these are essential variables.

Mr. C. R. Pierce Regulatory Affairs Director January 13, 2015 Southern Nuclear Operating Company, Inc. P. 0. Box 1295/Bin-038 Birmingham, AL 35201-1295 SUBJECT: EDWIN I. HATCH NUCLEAR PLANT, UNIT 2-REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MF4860) Dear Mr. Pierce: By letter dated Septemeber 19, 2014, the Southern Nuclear Operating Company, Inc. (SNC), submitted request for relief HNP-ISI-ALT-HDPE-01, which requests authorization to replace buried steel Plant Service Water piping with High Density Polyethylene (HOPE) piping for the duration of the license at Hatch Nuclear Plant, Unit 2. The U.S. Nuclear Regulatory Commission (NRC) staff has determined that additional information is needed as discussed in the Enclosure. We request that SNC respond within 45 days of the date of this letter. Please note that the NRC staff's review is continuing and further requests for information may be developed. Docket No.: 50-366 cc: Distribution via Listserv DISTRIBUTION: PUBLIC LPL2-1 R/F RidsAcrsAcnw MaiiCTR Resource RidsNrrDorllpl2-1 Resource Sincerely, /RAJ Robert Martin, Senior Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation RidsNrrLASFigueroa Resource RidsNrrPMFarley Resource RidsRgn2MaiiCenter Resource ADAMS Accession No.: ML 15005A270 OFFICE NRR/LPLII-1/PM NRR/LPLII-1/LA NRR/LPLII-1/BC NRR/LPLII-1/PM NAME RMartin (SWilliams for) SFigueroa RPascarelli RMartin DATE 01/08/15 01/06/15 01/13/15 01/13/15 OFFICIAL RECORD COPY