ML20092N591
| ML20092N591 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/19/1984 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20092N589 | List: |
| References | |
| SBN-673, NUDOCS 8407030315 | |
| Download: ML20092N591 (3) | |
Text
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..s 5"* STA" IPUBLIC SERVICE Engineedng Office:
Compartyof New Hampshire 1671 Worcester Road Fromingham, Massachusetts 01701 (617) - 872 - 8100 June 19, 1984 SEN-673 T.F. B4.2.7 United. States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Attention:
Mr. Richard W. Starostecki, Director Division of Project and Resident Programs
References:
(a) Construction Permits CPPR-135 and CPPR-136, Docket Noa. 50-443 and 50-444 (b) USNRC Letter, dated May 24, 1984, " Combined Inspection Nos. 50-443/84-04 and 50-444/84-02", R. W. Starostecki to R. J. Harrison
Subject:
Response to Combined Inspection Nos. 50-443/84-04 and 50-444/84-02
Dear Sir:
In response to the violation which was reported in the subject inspections, we offer the following:
NRC Notice of Violation (443/84-04-02):
10 CFR 50, Appendix B, Criterion III and Section 17.1.1.3 of the Seabrook FSAR require that design control measures shall be provided for verifying or checking the adequacy of design. Also, Criterion X and Section 17.1.1.10 of the Seabrook Station FSAR require that a, program for inspection of activities affecting quality be established and executed by or for the organization performing the activity to verify conformance with documented instructions, procedures, and drawings for accomplishing the activity.
In addition, ECA 73/5610A provided details to allow for thermal growth of the emergency diesel generator (EDG) exhaust silencer to pedestal mount design.
Section 9.5.8 of the Seabrook Station SER, l
dated March 1983, documented the commitment to inspect the diesel exhaust system in accordance with ANSI B31.1, ANSI N45.2, and 10 CFR 50, Appendix B.
Contrary to the above, as of April 6, 1984:
(1) The EDG exhaust system design did not adequately allow for thermal growth, resulting in damage to the EDG exhaust silencer concrete pedestals during testing; and 8407030315 840628 PDR ADOCK 05000 0
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,o United States Nuclear Regulatory Commission June 19, 1984 1
Attention:
Mr. Richard W. Starostecki, Director Page 2 (2) the EDG exhaust silencer was not inspected in accordance with 10 CFR 50, Appendix B.
This is a Severity Level IV Violation (Supplement II),
Response
Corrective Action Taken and Results Achieved Based upon revised loads and revised analysis, UE&C has redesigned the EDG exhaust system supports. The revised steel supports have been designed to be sufficiently heat-resistant for the anticipated operational temperatures. Redesign details are included in the disposition to Startup QC NCR No.82-221 which identified the cracking of the original concrete supports.
Inspection of the hold-down anchor bolts and associated hardware was not accomplished due to confusion regarding the scope of the inspections required for this system.
In order to eliminate this problem, UE6C will issue ECA 19/04116 which will define the boundaries and associated components and will detail any required reinspections.
The date for completion of corrective action is contingent upon the resumption of construction activities at Seabrook. YAEC will keep the resident NRC inspector cognizant of activities associated with this issue.
Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY d
/
John DeVincentis Engineering Manager cc: Atomic Safety and Licensing Board Service List Director, Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 L.,i-. L.,..
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' William S. Jordan, III, Esquire Brentwood Board of Selectmen Harmon & Weiss RED Dalton Road 1725 I Street, N.W. Suite 506
- Brentwood, New Hampshire 03833 Washington, DC 20006 Roy P. Lessy, Jr., Esquire Office of the Executive Legal Director Edward F. Meany U.S. Nuclear Regulatory Commission Designated Representative of Washington, DC 20555 the Town of Rye 155 Washington Road Robert A. Backus, Esquire Rye, NH 03870 116 Lowell Street P.O. Box 516 Calvin A. Canney Nkncehster, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street Assistant Attorney General Portsmouth, NH 03801 Department of the Attorney General Augusta, ME 04333 Dana Bisbee, Esquire Assistant Attorney General Mr. John B. Tanzer Office of the Attorney General l
Designated Representative of 208 State House Annex the Town of Hampton Concord, NH 03301 5 Morningside Drive Hampton, NH 03842 Anne Verge, Chairperson Board of Selectmen Roberta C. Fevear Town Hall Designated Representative of South Hampton, NH 03842 the Town of Hampton Falls Drinkwater Road Patrick J. McKeon Hampton Falls, NH 03844 Selectmen's Office 10 Central Road Mrs. Sandra Gavutis Rye, NH 03570 Designated Representative of the Town of Kensingten Carole F. Kagan, Esq.
RFD 1 Atomic Safety and Licensing Board Panel East Kingston, NH 03827 U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire Assistant Attorney General Mr. Angie Machiros Environmental Protection Bureau Chairman of the Board of Selectmen Department of the Attorney General Town of Newbury One Ashburton Place, 19th Floor Newbury, MA 01950 Boston, MA 02108 Town Manager's Office Senator Gordon J. Humphrey Town Hall - Friend Street U.S. Senate Amesbury, Ma.
01913 Washington, DC 20510 (Attn: Tom Burack)
Senator Gordon J. Humphrey 1 Pillsbury Street Diana P. Randall Concord, NH 03301 70 Collins Street (Attn: Herb Boynton)
SE4 brook, NH 03874 Richard E. Sullivan, Mayor Donald E. Chick City Hall Town Manager Newburyport, MA 01950 Town of Exeter 10 Front Street Exeter NH 03833
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