ML20091L119
| ML20091L119 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 08/24/1979 |
| From: | Hood D Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17198A223 | List:
|
| References | |
| CON-BOX-01, CON-BOX-1, FOIA-84-96 NUDOCS 8406070340 | |
| Download: ML20091L119 (5) | |
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d AUG 241979 i.
MEMO TO FILE FROM:
D. Hood, Project Manager, Light Water Reactors Branch No. 4. DPM
SUBJECT:
INTERNAL MEETING ON STATUS OF MIDLAND SOILS SETTLEMENT l
On August 16, 1979, members of NRR, I&E Headquarters and OELD met to discuss i
the status of the staff's review of the soils settlement matter at the Midland site. The purpose was to determine the states of the staff's decision pursuant to 10 CFR 50.54f (which is applicable to construction permits by 10 CFR 50.55(c).)
r The principal background documents to date are listed in Enclosure 1.
Meeting l-attendees are listed in Enclosure 2.
J Mr. Knight reported that the principal technical solutions proposed by the applicant for the major structures appears to be basically sound such that, properly implemented, they can be expected to provide for adequate structural j
foundation support. He noted, however, that certain details of the applicant's reply were not sufficient and further information will be required from the applicant.
I For example, the details of the applicant's load combination calculations and i
j stress limits applicable to differential settlement, NRR's need for a more quantitative assessment to determine that nozzle loads transmitted from settled pipes to the attached valves, pumps, tanks, etc will remain within ASME Code allowables, and a more thorough monitoring program to follow actual performance I
during operation. These findings and further requests are being documented and will be completed in late August.
Messrs Haass and Gilray of QAB noted that some instances of poor performance in QA areas revealed in the I&E investigation report indicates that dditional QA measures beyond those typically imposed by the NRC may be warranted. QAB's review is in its final stages of documentation and should be co,apleted before i
the end of August.
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8406070340 840517 PDR FOIA RICE 84-96 PDR
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. AUG 241979
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Pr.Thornburg noted I&E is continuing its review of the performance aspects of the QA program and conside -ing the soils settlement matter in relation to the reports of QA deficiencies in other areas. Mr. Thornburg anticipates that I&E will reach its conclusions by mid-September 1979.
OELD referenced a Memorandum and Order from ASLB dated August 2,1979 which asks for clarification of the staff's position regarding consideration of the diesel generator building settlement issue. The board cannot determine from the staff's response whether the staff simply prefers not to issue a partial SER or whether there are other considerations making early consideration of this issue impossible or impractical. Mr. Omstead will prepare a reply clarifying the staff's DES schedule and explaining why isolation of the DG building issue is not practical.
Mr. Rubenstein described the approach which DPM will take in arriving at an NRC position on the technical qualification findings for the SER.
The approach is that defined in a W. Haass memo dated 12/15/78, which calls for inputs from QAB, I&E, D0R and DPM.
Mr. Vassallo emphasized the need for timely decisions to be reached by the staff and for similar status meetings in the near future.
AA #p D. Hood T
4
i ENCLO3URE 1
,s BACKGROUND DOCUMENTATION t
Background Documentation relevant to NRR's 10 CFR 50.54(f) requests dated March 21, 1979 include the following: The applicant's reply dated April 24, 1979, was revised May 31,1979 (revision 1), and July 9,1979 (revision 2).
Further information was supplied by the applicant during meetings attended by both I&E and NRR on March 5 and July 18, 1979.
In addition, certain infor-mation was requested by NRR technical branches as part of the FSAR review prior to issuance of the 10 CFR 50.54(f) requests and are replied to through FSAR amendments.
Site visits by NRR staff to observe settlement were made March 6 and June 7,1979, and December 3,1978. NRR participation with I&E results from a Transfer of Lead Responsibility which was distributed to technical review branches as part of a technical assistance request dated
( ' '~ s November 27, 1978.
t Background documentation directed to I&E includes a 50.55(e) notification by the applicant dated September 29, 1978, for which six interim reports have l
been issued to date (November 7, 1978; December 21, 1978; January 5,1979; February 23,1979; April 30,1979; and June 25, 1979).
I&E has conducted a preliminary investigation and has documented its summary findings, along with the applicant's discussion of these findings, in a letter to the applicant-dated March 15, 1979.
Enforcement actions due to potential material-false statements in the FSAR as may be applicable to some of these I&E findings l
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are presently under internal review, assisted ky NRR staff as appropriate.
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