ML20207G581
| ML20207G581 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 11/19/1986 |
| From: | Strosnider J, Varela A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML20207G551 | List: |
| References | |
| 50-213-86-25, IEB-80-11, NUDOCS 8701070336 | |
| Download: ML20207G581 (10) | |
See also: IR 05000213/1986025
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U.S. NUCLEAR REGULATORY COMMISSION
REGION I
Report No.
50-213/86-25
Docket No.
50-213
License No. DPR-61
Priority
Category
C.
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Licensee: Connecticut Yankee Atomic Power Company
P. O. Box 270
Hartford, Connecticut 06101
Facility Name:
Haddam Neck
Inspection At:
East Berlin and Haddam Neck Plant
Inspection Conducted: October 21-24, 1986
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Inspectors:
_ A. Varela, Lead Reactor Engineer
date
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NRC Contract Personnel:
M. E. Nitzel, EG&G, Idaho
V. B. Call, EG&G, Idaho
Approved by:
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/J/' R. Strosnider, Chief
date
LMaterials and Processes Section, EB, DRS
Inspection Summary:
Inspection on October 21-24, 1986, Inspection Report
No. 50-213/80-25.
Areas Inspected: Special announced inspection by a regional-based inspector
and two contractor personnel at the licensee's engineering office and the
Haddam Neck plant site. The inspection encompassed review of licensee re-
sponses and subsequent analysis and modifications of masonry walls in response
to IE Bulletin 80-11, Masonry Wall Design.
The inspection included a walkdown
of existing walls affecting safety related equipment, a review of design
analyses and a review of work packages on wall modifications.
Results:
No violations were identified.
G701070336 861229
ADOCK 05000213
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DETAILS
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1.0 Persons Contacted
NortheastUkilitiesandConnecticutYankeePowerCompany
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- W. Briggs, Supervisor, Generation Civil Engineering
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T. Bransfield, Plant Engineer
C. Chunglo, Civil Engineer
J. Mawson, Project Engineer
D. 9. McCory, Supervisor, Procurement QA
- E.
D'. Perkins, Licensing Engineer
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- R. Smart, Manager, Generation Civil Engineering
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- R. Werner, Vice President, Generation Engineering
URS Blume Consultant
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L. Malik, Project Engineer
U.S. Nuclear Regulatory Commission
b
P. D. Swetland, Senior Resident Engineer
- attendees at Exit Meeting.
2.0 Inspection Purpose And Scope
The purpose of this inspection was to review with cognizant and
responsible licensee representatives at the corporate office and the
plant the' completeness of their responses to NRC/IE Bulletin 80-11,
Masonry Wall Design. The scope of the inspection included a review of
engineering design and quality assurance documentation relating to
inspection, testing, analysis and modifications satisfying requirements
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and licensee commitments with respect to the bulletin. A walkdown
inspection of the plant verified repairs and/or modifications relating to
the bulletin.
3.0 Review Criteria
The latest revision of the bulletin was used to define expected actions
by the utility.
In addition, Temporary Instruction (TI) 2515/37 was used
to further define inspection requirements. Applicable sections of the
Code of Federal Regulations (10 CFR 50) were used.
4.0 Review Of Licensee Responses
The inspection team reviewed bulletin responses available from NRC files
prior to the inspection. These responses included reports addressing the
reevaluation methodology, acceptance criteria, wall configurations and
functions, structural adequacy, proposed modification plans, and
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modification schedules. Table I lists those documents reviewed prior to
the inspection. Questions of compliance or items requiring further
discussion were noted as items to be addressed while at the corporate
office or plant site. Questions relating to licensee responses were
forwarded to the licensee in advance of this inspection as a preliminary
agenda for discussion.
The inspection team reviewed additional material provided by the licensee
during the inspection. This material consisted of procedures governing the
original walkdown of masonry walls, work instructions and work requests
pertinent to masonry wall modification activities, masonry wall survey
packages from original walkdowns, reevaluation calculations, structural
adequacy calculations for all modifications, and modification detail
drawings.
The pertinent documents described above for IEB 80-11 are
listed in Tables 2 and 3.
4.1 Findings:
It was determined from the review of the docurnentation described
above that, in general, all aspects of the work done in response to
the subject bulletin were acceptable. However, two unresolved items
were identified during the reviews described above.
Further details
regarding these items are given below.
IEB 80-11 required the inspection and reevaluation of safety related
masonry walls to assure structural adequacy.
In order to assure
continued compliance with bulletin requirements, physical conditions
such as absence of mortar cracking and assumed boundary conditions
must be maintained. The licensee was asked to provide a surveillance
plan for routine inspection of masonry walls subject to bulletin action
to demonstrate continued compliance.
No formal plan for routine
surveillance currently exists.
However, the licensee did produce an
outline for a procedure that would govern periodic surveillance of
the subject walls. The licensee stated that surveillance intervals
had not been decided at this time and that work was still in progress
in drafting the procedure.
The licensee was requested to provide a
copy of this procedure at the earliest available date for NRC review
and was requested to provide surveillance intervals and walls included.
This is unresolved item number (50-213/86-25-01).
Criterion V of Appendix B to 10 CFR 50 requires that " Activities
affecting quality shall be prescribed by documented instructions,
procedures......".
Questions regarding the procedural control over
mortar joint repair work were asked of the licensee.
No evidence of
procedural control over mortar joint repairs, other that those ac-
complished in conjunction with another wall modification, was
produced. The licensee was asked to provide documentation clarifying:
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What procedures governed repair of mortar joints when not accomplished as
a.
part of another wall modification.
b.
What procedures govern repair of mortar joints performed by NUSCO maintenance.
The licensee stated that a mortar joint repair procedure that would govern
any repair activities required by the continued periodic surveillance program
was being developed.
It was stated that this procedure would incorporate
research into the latest materials available for use in this type of repair.
The licensee was requested to provide a copy of the subject procedure for
NRC review at the earliest possible date. This is unresolved item number
(50-213/86-25-02).
5.0 Licensee Response To Above Unresolved Items:
The licensee representatives acknowledged the unresolved items and agreed
to respond by submitting to the NRC a draft of the surveillance plan pro-
cedure by December 31, 1986. The licensee representatives also agreed to
submit a draft copy of the mortar joint repair procedure for NRC review.
This procedure would be submitted prior to the end of February 1987.
Formalization of both procedures would then be completed prior to the
beginning of the next refueling outage (approximately June 1987).
6.0 Verification Walkdown Inspection
A physical inspection of certain masonry walls subject to bulletin action
was conducted.
The walls included in this sample were chosen by the in-
spection team.
The purpose of this walkdown was to verify samples of
inspections and/or modifications required by the bulletin. The walls
listed in Table 4 were examined.
No violations were identified.
7.0 Definition Of Unresolved Items
Unresolved items are matters about which more information is required in
order to ascertain whether they are acceptable, violations, or deviations
talative to the bulletin requirements. Unresolved items identified
curing this inspection are discussed in paragraphs 4 and 5 above.
8.0 Review Of Licensee Administrative Controls And Assurance Of Quality
The following documents were reviewed by the NRC inspector to determine
the adequacy of administrative controls and quality assurance of licensee
activities relating to his responsibilities and delegated responsibility
in engineering surveys, block wall modifications, and contractor (C. N.
Flagg) block wall repairs at the Haddam Neck plant.
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1.
Northeast Utilities (NU) QA Program Topical report, applicable
revisions during IEB 80-11 activities.
2.
URS/Blume QA Manual:
Design review No. 4.10 revision 7
Internal audits No. 6.1 revision 7
3.
NU Generation Construction QC procedures and reports, surveillance of
C. N. Flagg block wall modifications, dated February 23, 1981
QC-151 Control of Deficiencies and Corrective Action
QC-152 Reporting of Defects and Noncompliance
QC-071 Material Receiving and Control
QC-131 Material Storage and Handling
QC-181 Quality Assurance Audit Program
4.
NU QA nonconformance report reviews of C. N. Flagg's block wall
modifications and turn-over of as-built drawings for close-out and
acceptability.
5.
NU QA surveillance report A 80-099 on welder qualifications.
6.
NU audits of URS/Blume:
QA-3518 of October 1979, Supplier Evaluation and reevaluation -
February 1981
Audit A01419 of June 1981, Blume Topical Report
Audit A02192 of April 1984, Design Activities
NU QA follow-up correspondence with Blume relating to A01419
audit responses and corrective actions by Blume.
7.
URS/Blume internal QA audit of masonry wall surveys and review of
design activities for conformance to their procedures.
This review observed that audit findings of deficiencies and nonconfor-
mances were adequately dispositioned, the required corrective actions were
approved, formally accepted and closed out.
Findings:
No violations were identified.
9.0 Summary
Based on the information examined during this inspection and the results
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of the field walkdowns, IEB 80-11 has been adequately responded to by the
licensee.
His involvement and control in assuring quality and resolution
of technical issues from a safety standpoint appear adequate.
is closed.
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10.0 Exit Meeting
The NRC inspector conducted an exit meeting participated in by EG&G
contract personnel, with licensee representatives (denoted in paragraph
1). The NRC inspector summarized the inspection findings and the
licensee acknowledged these comments. No written material, other than
that described in paragraph 4 (preliminary agenda for discussion) was
provided to licensee personnel.
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Table 1 - DOCUMENTATION REVIEWED PRIOR TO INSPECTION
DOCUMENT
DESCRIPTION
W. G. Counsil (Nusco) letter to B. 4. Grier (USNRC) dated 7-7-80
forwarding licensee's 60 day respense to IEB 80-11.
W. G. Counsil letter to B. H. Grier dated 11-4-80 transmitting
licensee's 180 day response to IEB 30-11.
W. G. Counsil letter to B. H. Grier dated 3-3-81 providing
status of IEB 80-11 activities and requesting schedule
extension.
W. G. Counsil letter to B. H. Grier dated 6-26-81 forwarding
information regarding the status of bulletin modification
activities.
8210150699
R. A. Clark (NRC) letter to W. G. Counsil dated 9-28-82
requesting additional information regarding responses to
B10624
W. G. Counsil letter to R. A. Clark dated 12-3-82 forwarding
additional information regarding IEB 80-11 activities.
G. Lear (NRC) memo to J. Zwolinski (NRC) forwarding results of
a review of licensee submittals of additional information.
J. Zwolinski letter to J. F. Opeka (Connecticut Yankee Atomic
Power Co.) suggesting a site visit and meeting to discuss IEB 80-11 activities.
Internal NRC memo by F. M. Akstulewicz summarizing the
activities and results of the site visit and meetings held with
the licensee on October 28-30, 1985.
A05084
J. F. Opeka letter to C. I. Grimes (NRC) dated 12-31-85 forward-
ing additional information regarding IEB 80-11 activities.
J. F. Opeka letter to C. I. Grimes dated 2-18-86 describing
actions taken to monitor and repair cracks found in masonry
walls at Haddam Neck.
812016
J. F. Opeka letter to C. I. Grimes dated 3-7-86 describing the
repair methods used on the masonry walls identified in the
2-18-86 letter.
F. M. Akstulewicz letter to J. F. Opeka dated 3-26-85
forwarding NRC safety evaluation and technical evaluation report
(prepared by Franklin Research Center).
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Table 2 - DOCUMENTATION REVIEWED DURING INSPECTION
DOCUMENT
DESCRIPTION
URS/Blume field work procedure for conducting field walkdowns
of masonry walls.
NEO 5.11
NUSCO procedure, Design Change Notices for Design Documents,
Revision 1A.
NUSCO specification No. SP-GC-38-80/ Construction Services for
Structural Modifications to Support NRC IEB 80-11.
Block Wall Modification Contractor, C. N. Flagg Quality Control
Project Procedures.
NEO 5.19
NUSCO engineering procedure to control modifications to
structures requiring seismic qualification reviews.
NUSCO outline of procedures for periodic surveillance of
masonry and repair of cracks in mortar joints in masonry walls.
NE0 3.03
NUSCO procedure for preparation, review and disposition of plant
design change requests (PDCR's).
8040
First generation field walkdown data files for the following
walls:
CYDG1001
CYDG1002
CYDG1003
CYDG1004
CYPAB101 (A-F)
CYPAB103
CYSF1001
CYSB1003
CYTB1008
CYTB1010
CYTB2003
URS/Blume Quality Assurance Manual Revision 7 dated 10-1-79.
URS/Blume Correspondence Log / Connecticut Yankee Black Walls
Project No. 8040-01 through 03.
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Table 3 - Calculation Packages Reviewed
CALC. NO.
WALL
8040-53-CM-15
CYSF1001 (modifications)
8040-53-CM-17
CYPAB101A-F (modifications)
8040-53-CM-30
CYSF2001 (modifications)
8040-53-CM-12
CYSB1002 (modifications)
8040-53-CM-26
CYTB1008(modifications)
8040-03
CYSB1002 (reevaluation prior to mod.)
8040-53-CM-31
CYSB1003 (modifications)
8040-53-CM-24
CYTB1010 (modifications)
8040
CYCG1001 (reevaluation prior to mod.)
CYDG1002 (reevaluation prior to mod.)
CYDG1003 (reevaluation prior to mod.)
8040-53-CM-13
CYDG1001 (modifications)
8040-53-CM-14
CYDG1002 (modifications)
8040-53-CM-18
CYDG1003 (modifications)
8040-53-CM-19
CYDG1004 (modifications)
8040-53-CM-21
CYTB2003 (modifications)
CYPAB101F
CYPAB101F (reevaluation prior to mod.)
CYPAB101A-
CYPAB101A (reevaluation prior to mod.)
CYPAB101B
CYPAB101B (reevaluation prior to mod.)
CYPAB101C
CYPAB101C (reevaluation prior to mod.)
CYDG1004
CYDG1004 (reevaluation prior to mod.)
CYPAB102
CYPAB102 (reevaluation prior to mod.)
CYPAB103
CYPAB103 (reevaluation prior to mod.)
CYPAB104
CYPAB104 (reevaluation prior to mod.)
CYPAB107
CYPAB107 (reevaluation prior to mod.)
CYPAB108
CYPAB108 (reevaluation prior to mod.)
CYCT1001
CYCT1001 (reevaluation prior to mod.)
8040-53-CM-1
CYPAB102 (modifications)
8040-53-CM-2
CYPAB103 (modifications)
8040-53-CM-3
CYPAB104 (modifications)
8040-53-CM-4
CYPAB107 (modifications)
8040-53-CM-5
CYPAB108 (modifications)
8040-53-CM-6
CYCT1001 (modifications)
NOTE:
All of the walls listed above except CYCT1001 were included
in the field walkdown conducted by the NRC inspection team.
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Table-4 - MASONRY WALLS FIELD VERIFIED
WALL
ELEVATION (FT)
LOCATION
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CYPAB101A-F
21'-6"
PAB (Primary Aux. Bldg.)
.CYPAB102
21'-6"
PAB
CYPAB103
21'-6"
'PAB
CYPAB104
21'-6"
PAB
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CYPAB105
21'-6"
PAB
CYPAB106
21'-6"
PAB
CYPAB107
21'-6"
PAB
CYPAB108
21'-6"
PAB
-CYSB1002
41'-6"
SB (Service Bldg.)
CYSB1003
41'-6"
CYSB2002
59'-6"
CYSB2003
59'-6"
CYDG1001
21'-6"
DG (Diesel Gen. Bldg.)
CYDG1002
21'-6"
CYDG1003
21'-6"
'
.CYDG1004
21'-6"
CYSF1001
21'-6"
SF (Spent Fuel Bldg.)
,
CYSF1002
21'-6"
SF
CYSF2001
35'-0"
SF
CYTB1007
21'-6"-
TB (Turbine Bldg.)
CYTB1008
21'-6"
CYTB1009
21'-6"
-CYTB1010
21'-6"
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.CYTB2003
37'-6"
CYTB2004
37'-6"
CYTB2005
37'6"
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