ML20041B580

Motion for Admission of Addl Evidence Including Listing of Plates W/Manually Welded Studs Installed in Concrete by 770609, & Util 800409 Transmittal Ltr to Bechtel. Certificate of Svc Encl

ML20041B580
Person / Time
Site:	Callaway
Issue date:	02/19/1982
From:	Chackes K CHACKES & HOARE, JOINT INTERVENORS - CALLAWAY
To:	Atomic Safety and Licensing Board Panel
References
ISSUANCES-OL, NUDOCS 8202240310
Download: ML20041B580 (23)

Text

{{#Wiki_filter:- 2l)4 1 CMEP UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION, BEFORE TIIE ATOMIC SAFETY AND LICENSING BOARD in the Matter of ) ) sh b UNION ELECTRIC COMPANY ) Docket No. STN 50- J-OL Q ) /.' - N, (Callaway Plant, Unit 1) ) g w %N[]'5,b -(' /l = es JOINT INTERVENORS' MOTION FOR 6 ADMISSION OF ADDITION AL EVIDENCE Ar" u Joint Intervenors - Coalition for the Environment, St. Louis Re$ 're,'MissouNa(ns-for Safe Energy; and Crawdad Alliance - move the Board for an Order admitting into the record of the hearing on Joint intervenors' Contention One the document entitled: " Listing of Plates With Manually Welded Studs installed in Concrete By 6/9/77" (together with transmittal letter from Bechtel to Union Electric dated April 9,1980 - BLUE 675).1 This document is of critical importance in the Board's determination of the acceptability of embedded plates with manually welded studs installed at the Callaway Plant prior to the issuance of the June 9,1977 stop work orders and the discovery of welding deficiencies on similar uninstalled plates. This document provides detailed information comparing the actual load on each plate installed before June 9,1977, to the calculated reduced load capacity for the plate, assuming each installed plate contains welding deficiencies similar to those discovered on the uninstalled plates. The detailed information demonstrates that Applicant and Bechtel have apparently made material 1A copy of this docu.nent is being submitted with this motion. It should be noted that the last page appears to be missing. For convenience, Joint Intervenors suggest it be identified as Joint intervenors' Exhibit 78 (J.l. Ex. 78). It will be referred to as such in Joint intervenors' Proposed Findings of Fact and Cenclusions of Law which are now being prepared and which will be submitted in the near future. This document was not submitted during the hearing due to inadvertance and oversight. Not until the drafting of the Joint intervenors' proposed findings of fact was t'he importance of this document discovered. g 5 8202240310 920219 PDR ADOCK 05000483 /[ G PDR

misrepres.cntations of fact to the NRC Staff and to this Board, and that in many cases t,he calculated reduced load capacity for a plate is equal to or dangerously close to the actual load on the plate. Applicant's Proposed Findings of Fact, in support of its position regarding the acceptability of the manually welded embeds installed before June 9,1977, include the following statements: Their precise location and the actual loads imposed are known. The manually welded embeds at Callaway are not loaded to their full structural capacity. (166, p. 44) in discussing Bechtel's engineering analysis regarding the manually welded plates, Applicant states also in its proposed findings of fact: (1) Weld Undersize. An engineering analysis was performed to determine the load carrying capacity of each manually welded plate, assuming it contained undersized welds.... Using these conservative assumptions, a reduced load carrying capacity was calculated for each plate. These reduced capacities were then compared with the actual applied loads on each plate. In all cases the recalculated load carrying capacity still exceeded the maximum intended design load. (171, pp. 48-49; emphasis added).Z The basis for the at,ove proposed findings is Bechtel's (first) " Final Report - Investigaton of Welded Studs" dated August 10,1977 (Applicant's Ex. 4). In that report Bechtel states that the comparison of the actual loads and the calculated reduced load capacities " established that a sufficient design margin existed and that none of the plates embedded prior to June 9,1977 possess the potential to fail." (Id. at p. 5, emphasis added, see also p. 2). In their direct prefiled testimony, Drs. Meyers and Parikh of Bechtel stated in connection with the same subject: "These reduced capacities were then compared with 21f there is a distinction between " actual applied load" and " intended design load," the distinction is certainly not apparent in the quoted passage. The clear implication is that they are the same. 2

the actual applied loads on each plate, and in all cases the load carrying capacity exceeded the design loads." (pp. 37-38, following Transcript p. 501, emphasis added). Thus, Applicant has attempted to convince the NRC Staff and this Board that even if the manually welded plates installed prior to June 9,1977 contain defects comparable to what Applicant and Bechtel claim to be the " worst case" discovered on plates inspected af ter June 9,1977, each of the installed plates still has a load carrying capacity which exceeds the actual load on the plates. The document proposed to be added to the record clearly demonstrates that that is not true, in fact, four of the installed plates will bear actual loads which are equal to the calculated reduced load capacity for the plate.3 in addition, proposed J.l. Ex. 78 demonstrates that even where the actual load is less than the calculated load capacity, in many cases the difference is extremely small. For example, fourteen plates have actual loads within one or two thousand pounds (89 to 98 percent) of their calculated reduced capacities.4 Thus, in many cases there 3Those four plates are located in the tables of proposed J.l. Ex. 78 as follows: 1 10th table,12th entry 2. 10th table, last entry 3. lith table, 2nd entry 4. 12th table, 9th entry 4Those fourteen plates are located in the tables of proposed J.l. Ex. 78 as follows: 1-3. 5th table; last 3 entries 4. 6th table; 1st entry 5-7. 9th table; 10th, lith and 13th entries 8-10. 10th table; 6th,14th and 17th entries 11-13. 12th table; 2nd, 3rd and 5th entries 3

is little or no margin for error. if Bechtel's calculations are wrong and the reduced load capacity is slightly lower, plate failure can be expected. If plates have conditions worse than the assumed " worst case" of one-eighth inch weld undersize, plate failure can be expected. The document proposed to be added to the record is necessary to provide a complete understanding of the issue regarding the adequacy of the manually welded plates installed before June 9,1977. It provides the only evidence of the location of each such plate in the plant (at least by plate-type), and the actual load on each plate. It also shows that in its engineering analysis Bechtel apparently did not know, or at least did not consider, the type of load on each plate. Joint intervenors submit that the Board has the inherent authority to grant this motion in order to make the record more complete. NRC regulations provide that if, at the close of a hearing, uncertainties remain because of a " lack of sufficient information in the record, it is expected that the board would normally require further evidence to be submitted...." 10 CFR Part 2, Appendix A, V(g)(1). With regard to posthearing proceedings, the regulations provide: "A board, acting through the Chairman, shall dispose of procedural requests made after the clos e of the hearing...." 10 CFR Part 2, Appendix A, Vi(a). Therefore, Joint intervenors request an Order admitting into the record of the hearing on Joint intervenors' Contention One, the document described above and submitted with this motion. (cont.) 14. 13th table; 3rd entry 4

Respectfully submitted, CIIACKES AND HOARE W A' Kenneth M. Chackes #27534 Attorneys for Joint intervenors 314 North Broadway St. Louis, Missouri 63102 314/241-7961

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD in the Matter of ) ) UNION ELECTRIC COMPANY ) Docket No. STN 50-483-OL ) (Callaway Plant, Unit 1) ) CERTIFICATE OF SERVICE 1 hereby certify that copies of Joint Intervenors' Motion for Admission of Additional Evidence have been served on the following by deposit in the United States mail this 19th day of February,1982. James P. Gleason, Esq., Chairman Atomic Safety and Licensing Board 513 Gilmoure Drive Silver Spring, MD 20901 Mr. Glenn O. Bright Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C. 20555 f Dr. Jerry R. Kline Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Thomas A. Baxter, Esq. Shaw, Pittman, Potts & Trowbridge 1800 M Street, N.W. Washington, D.C. 20036 Docketing and Service Section Office of the Secretary U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Roy P. Lessy, Jr., Esq. Office of the Executive Legal Director U.S. Nuclear Regulatory Commission Washington, D.C. 20555 T<=e-ke Kenneth M. Chackes CHACKES AND HOARE

i J .,r. n.- Bechtel Power Corporation Engineers-Constructors 15740 Shady Grove Road 9 Gaithersburg, Maryland 20760 301-948 2700 Mr. D. F. Schnell Manager - Nuclear Engineering APR 9 1980 Union Electric Company Post Office Box 149 St. Louis, MO 63166 BLUE G15 me No. C-ul Bechtel Job No. 10466 SNUPPS Project, Embed Plate List Ref: BLSM 5977 dated October 10, 1977 Encl: Listing of Plates with Manually Welded 7 Studs

Dear Mr. Schnell:

Per your verbal request (W. Zvanut to E. Thomas) please find enclosed the l listing of plates with manually-welded studs discussed in Item B, Page 2 of the Final Report, Investigation of Welded Studs. This report was forwarded to you in Reference 1. 'O The enclosed listing identifies plates installed in concrete prior to June 9, 1977. Very t y you a. l . Smith Projcar D1gineerin Qianager i CCPILS FoR ~~ EWT:bg tra cue rior li,.rai ceu !, r. out 0/3 - C/3/ ! / !- MT,, l i [ cc: N. A. Petrick, w/o .Mid - !f i- !y! I si. Dart s1-o i i i' i RECEIVED i i .i 1 APR 101980 ll; ll' i l i it D.F.SCHNELU j_ _ i i

AITACHMENT TO BLUE (M 5 V LISTING OF PLATES WITH ENUALLY WELDED STUDS INSTALLED IN CONCRETE BY 6/9/77 Welding between bolts and plates assumed to be undersized by 1/8". I A Total No. of W Building Plates Aux. Bldg. 165 Control Bldg. 60 Comm. Corr. 34 259 e

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