ML20091M965
| ML20091M965 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 02/09/1983 |
| From: | Lucks A STONE & WEBSTER, INC. |
| To: | Cook R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML17198A223 | List:
|
| References | |
| CON-BOX-10, FOIA-84-96 MPF-20, NUDOCS 8406120158 | |
| Download: ML20091M965 (9) | |
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STONE 6 WEBSTER ENGINEERING CORPORATION 245 SUMMER STREET. B oSTo N. MASSACHUSETTS ADDRESS ALL CORRESPONDENCE TO P.O. SOX 2325. SOSTON. M ASS. 02107 i W U TELEX 84 0009 C
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United States Nuclear Regulatory Commission February 9, 1983 Midland Site Resident Inspection Office Route 7 J.O.
NO.
14358 Midland, MI 48640 Ref. MPF 20 Attention Mr. R. Cook RE: DOCKET NO.
50-329/330 MIDLAND PLANT - UNITS 1 and 2 INDEPENDENT ASSESSMENT OF AUXILIARY BUILDING UNDERPINNING REPORT NO. 20 A copy of the Independent Assessment of the Auxiliary Building Under-pinning Weekly Report No. 20 for the period January 30, 1983 through February 5, 1983, is enclosed with this letter. Included, as an attach-ment, are t!1e minutes of the daily meetings held during the week between members of the Assessment Team and Site Engineering, Construction and Quality Assurance personnel.
If you have any questions with respect to this report, please contact me at (617) 589-2067.
Very truly yours, A. Stanley Lucks Project Manager f
Enclosures l
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14358 Midland Plant-Unita 1 and 2 Independent Assessment Auxiliary Building Underpinning Weekly Report No. 20 January 30, 1983 through February 5, 1983 Personnel on Site 1
Stone & Webster
- Engineering Corporation (SWEC)
/ W. Kilker 1/31 - 2/5
( A. Scott 1/31 - 2/5 l B. Holsinger 1/31 - 2/4 JA.S. Lucks 2/1 2/2 G.M. Schierberg 2/1 N.B. Cleveland 2/1 J.P. Allen 2/1 J.R. Hall 2/1 i
E.A. Long 2/1 Parsons, Brinckerhoff, Quade and Douglas (PBQD)
J. Ratner 1/31 - 2/3 L. Silano 2/1 Meetings Attended Date Represented Purpose f
1/31 Stone & Webster Daily Meetings through Bechtel 2/4 Consumers Power j
Parsons (1/31 - 2/3) 2/4 Stone & Webster Weekly Soils Review Bechtel Consumers Power I
2/1 Stone & Webster Senior Level Man-l Consumers Power agement Team Site l
Parsons Visit l
Activities l
Construction - Within pier W12 the bell bottom reinforcing mat, ) haft stir-rups and vertical reinforcing steel was installed up to about El. 604. The Fox-Howlett couplers used to jcin sections of reinforcing rod were installed and torqued. Forming was begun for the pcrtion of the pier above the access drift floor at El. 600. In addition, three embedsent plates with headed stud anchors were installed as shown on the design drawings.
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14358 Midland Plant Unita 1 and 2 Independent Assessment Auxiliary Building Underpinning 2
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Grouting behind the steel plating in the bell was done where necessary to
. fill voids. SEnce nearly all of the bell area has been shected and braced there are only small areas of soil left exposed.,Throughout the week there has been minor raveling of the exposed soil near the bottom of the bell.
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Mrhor seepage of groundwater into.the pier continued to accumulate on the mudemat and was easil,y handled by periodic bailing.
Excavation of pier E12 as a straight shaft was completed to El. 56% approved by the Engineers,and a concrete sud-mat was installed at the bottom. Work on the bell commenced once the sat had set suffic.iently to allow work to proceed.
Initially, the short sides of the bell were formed and trimmed to the correct dimensions. Then the long sides were excavated in two stages on each side followed by cutting the slopes into the corners. The installed bell support consists of 2 braced channel sections extending the entire height of the bell on each of the long sides of the bell.
The excavated soil consisted of a natural, very stiff gray clay with occasional e
randomly oriented thin brown silt lenses. No groundwater entered the excavation.
Quality Control, Documentation and Records -
1.
Reviewed the batch plant calibration and certification.
2.
Reviewed the certification and tests for concrete materials.
3 Witnessed the QC inspection and subsequent documentation of pier W12 bell.
4.
Reviewed QC Inspection Reports for concrete sud-nat-placement in piers W12 and E12.
i 5.
Witnessed the QC inspection of torquing of Fox-Howlett couplers between approximate El. 580 and El. 590 on pier W12.
6.
Reviewed truck mixer uniformity test results.
l 7.
Verified the taking and testing of the specified number of Fox-Howlett " sister splices" of the No.11 reinforcing bars installed in pier W12. Verified the strength adequacy of the referenced splice tests.
8.
Reviewed Geotechnical Engineers Daily Reports on pier 512.
9.
Verified the evaluation and acceptance of the pier W12 subgrade.
- 10., Verified sign-off of Geotechnical Engineer on QC Inspection Report on excavation of piers.
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14358 Midland Plant
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Units 1 and 2 Independent Assessment i
Auxiliary Building Underpinning 3
i Observations I
Construction - The pier W12 bell support installation was judged to be thoroughly done in accordance with good industry practice. The steel pT'ates are well supported and carc was taken to grout behind the plates as required.
I The reinforcing steel was clean and installed properly. The tapered threaded ends of the reinforcement were protected and in good condition prior to installation.
The Fox-Howlett coupler connections were being properly installed.
- The pier E12 bell installation was accomplished quite efficiently. The combin'ation of the stiff clay till and absence of ground-water seepage resulted in normal bell support without the additional support required on pier W12.
Quality Control, Documentation and Records - The review of the documentation on the batch plant, concrete materials, truck mixer uniformity and coupler splice testing indicated these items are in conformance with the project requirements. In addition, the Team's review of the QC Inspection Reports for the mud-nats and bell inspections, and the Geotechnical Engineers Daily Reports demonstrated that adequate records and documentation of these act-ivities have been kept. The Team identified a minor problem with one facet of the concrete Inspection Report, in that the method of consolidating the concrete was not identified. The Team also observed that completion of Inspection Reports should be done in a more timely manner. The adequacy of the QC Inspector's performance on the bell inspection and coupler torquing was demonstrated in the presence of a member of the Assessment Team during the actual inspections.
Non-Conformance Idetification Reports i
Status of previous issues: (NIR numbers on longer listed have been closed-out during previous week.)
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NIR No.
Description Date (Opened)
Closed) 4 Welding Qualifi-12/29/82 cation Procedure i
i Project Ehgineer Project Manager l
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14358 Midland Plant Unitt 1 and 2 Independent Assessment Auxiliary Building Underpinning 3
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Observations j
Construction - The pier W12 bell support installation was judged to be thoroughly done in accorda-ce with good industry practice. The steel pT' tes are well supporte-.nd care was taken to grout behind the plates i
a as required.
The reinforcing stael was clean and installed properly. The tapered threaded j
ends of the reinforcement were protected and in good condition prior to 4
installation.
The Fox-Howlett coupler connections were being properly installed..
The pier E12 bell installation was accomplished quite
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efficiently. The combination of the stiff clay till and absence of ground-water seepage resulted in normal bell support without the additional support required on pier W12.
Quality Control, Documentation and Records - The review of the documentation on the batch plant, concrete materials, truck mixer uniformity and coupler splice testing indicated these items are in conformance with the project requirements. In addition, the Team's review of the QC Inspection Reports t
for the mud-nats and bell inspections, and the Geotechnical Engineers Daily Reports demonstrated that adequate records and documentation of these act-ivities have been kept. The Team identified a minor problem with one facet j
of the concrete Inspection Report, in that the method of consolidating the 2
concrete was not identified. The Team also observed that completion of Inspection Reports should be done in a more timely manner. The adequacy of the QC Inspector's performance on the bell inspection and coupler torquing was demonstrated in the presence of a member of the Assessment Team during the actual inspections.
Non-Conformance Idetification Reports 4
Status of previous. issues: (NIR numbers on longer listed have been closed-l out during previous week.)
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,NIR No.
Description (Opened)
(Closed) l l
4 Welding Qualifi-12/29/82 j
cation Procedure e
f ff Project Ehgineer Project Manager i
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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL i
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Date: January 31, 1983 i -
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1 Attendees Bechtel Stone / Webster MPQAD CPCo J. Fisher A. Scott J. Shah G. Murray E. Cviki B. Holsinger R. Weiland J
Parsons 4
l J. Ratner 4
1.
Discussed the need for a definition of when couplers can be torqued r
against reinforcing bars embedded in freshly placed concrete. This i
situation will arise when bell concrete is placed prior to install-ation of the shaft reinforcement.
E. Cviki will resolve.
1 2.
A. Scott questioned why the resolution of the channel welding l
non-conformance on the pier W12 access drift has not yet been dispositioned, i
3 J. Fisher stated that as a result of recent discussion with the NRC, an FCN is being prepared to require vibration of all the concrete placed in pier W12. A Hergentime procedural change will be to generated.
4 4.
The Teas requested the schedule on U.S. Testing calibration of jacks j
and the sock-up of jacking set-ups.
J. Kelleher will notify.
e 5.
A. Scott requested copies of truck mixer uniformity tests and pump calibrations for water reducing agents.
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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL i
Date: February 1 1983 Atdendees:
Bechtel Stone / Webster MPQAD CPCo Mergentime E. Cviki A. Scott R. Sevo.
T. Goedjen R. Bradford W. Kilker J. Kelleher Parsons t
J. Ratner 2
1.
Discussion of previous items not resolved (coupler torquing, mixer uniformity, grout storage.)
2.
J. Ratner asked for status of pier W12 Jacks.
T. Goedjen replied the jacks are on-site with calibrated gauges.
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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL e
Date: February 2.1983
_ Attendees:
Bechtel Stone / Webster MPQAD CPCo E. Cviki A. Lucks G. Carpenter G. Murray W. Kilker A. Scott 1.
G. Murray requested that Bechtel take steps to respond more efficiently to a number of open item questions or requests of the Team, t
2.
Team concern of storage of grout materials is being addressed by a change in Mergentime procedure.
3 A. Scott reported he had received the mixer uniformity test results on the non-plasticized concrete mix. If plasticizer is to be used he requested simuler results be made available for that mix.
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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL Date: February 3, 1983 l
Attendees:
Bechtel Stone / Webster MPQAD CPCo E. Cviki A. Scott R. Sevo G. Murray i
J. Gaydos W. Kilker i
J. Fisher e
Parsons J. Ratner 1.
J. Fisher reported that daily meeting times may vary in order to allow J. Fisher or D. Lavelle to attend the meeting.
2.
J. Gaydos will be responsible for tracking Team requests.
J. Fisher presented a close-out schedule for responding to Team requests on Carlson meters, grout storage, NCR disposition on pier W12 channel welding, plasticizer metering equipment, and grout strength deter-mination.
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J. Ratner submitted a list of questions as a result of observations of the excavation and support of piers W12 and E12:
)
A.
Has the use of beam sections, rather than channel sections for bell support, been considered as an option to allow for easier insertion of plating when required?
B.
Would shoterete be an acceptable alternate bell support method?
l C.
Has the use of bentonite powder applied to the ex-posed soil surfaces been considered a means to j
stabilize any reveling material?
i D.
Why are the short sides of the lagging spreader sets being spread and not the long sides?
J. Fisher and J. Gaydos will respond.
4.
J. Fisher explained that in future piers the bell extsvation maybe initiated once the bottom of the shaft section is reached without first excavating the shaft section to final grade.
5.
A. Scott questioned why the steel lagging is considered under AISC I
structural steel code with respect to a recent non-con (praance written on the use of washers for the lagging bolts.
J. Fisher will respond.
i 6.
W. Kilker asked if due to the break in the construction activities t that the excavating of piers W12 and E12 is nearing completion,
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the " trained" labor force could be lost by lay-offs. This action could deter from the goal to learn from the initial pier installations.
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J. Fisher said every reasonable effort would be made to retain the L
the labor crews until the next.excavatigg activity proceeds.
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e INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL Date: February 4, 1983 l
Attendees:
Bechtel Stone / Webster MPQAD CPCo E. Cviki A. Scott R. Sevo G. Hurray
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J. Fisher W. Kilker J. Mooney J. Gaydos B. Holsinger J. Schaub i
1.
W. Kilker stated the Team received a copy of MCP 28.000.
The Team will review the procedure to evaluate how previous questions have been add-
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ressed.
2.
J. Fisher reported that if a concrete mix design with plasticizer is C
approved and tested this material will be used for pier W12.
Re-portedly the strength of the plasticized concrete is gained faster than "non-plasticized" concrete.
3 W. Kilker requested an explanation of the field engineering response to an NCR written on steel lagging washers.
J. Fisher explained the steps taken by the " field" to expedite the disposition.
4.
J. Fisher stated the tell-tale centralizens are being fabricated.
A. Scott said he intends to witness the procedure.
5.
Since J. Fisher also keeps notes of the daily Team meetings with Bechtel.
W. Kilker will insure that the Bechtel copy includes at least the topics included in the Team copy. This consistency is important since Bechtel takes action based on those items on their copy.
6.
W. Kilker reminded J. Fisher that one of J. Ratner's questions of February. 3.1983 had not been included on Bechtel's meeting notes.
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GOVEMMENT ACCOUNTABILIT( PROJECT Inso:a:e for Po! cy Siudes WO1 Oue Sueet. N.W.. Wcshington. D.C. 20009 (202)704 9382 February 16, 1983 FREEDOM OF INFORMATION ACI REQUESI Ditcetor bM *(8.- %
Otfice of Administra tion Nuclear Regulatory Commission Washington, D.
C.
20555 d.4 82 J ;2A /J To Whom It May Concern:
On behalf of our client, Mr. E. Earl Kont, and pursuant to both the Finedom of information Act (5 U.S.C.
5552) and the Privacy Act (5 U.S.C.
SS57a), we requent cupins of all noten, memoranda, telephone logs,
. tapes, diacies,.Tnnpection Evaluation Forms, and/or other records prepared by U.S. government employcos in connection with the July 1982 Stop Work Order icnued to the Midland Nuclear Power Plant by the Nuc-2 car Regulatory Cothmission.
The csbove request includos, but is not limi Led t o, cor.munications bet ween Nuclear Reactor Regulation, the Nuclear Regulatory Comission and the Advisory Committee on Reagtor Safety.
If any material covered by,this request has been destroyed and/or removed, please provide all surrounding documentation, including but not limited to a description of the action (s) taken, relevant date(s) and justification for the action (s).
Mr. Kent requests that fees be waived, because " finding the information can be considered as primarily benefitting the general public."
5 U.S.C.
.S552(a) (4) ( A).
The Government Accountability Project is a non-profit, nonpartisan public interest organization concerned with honest and open government.
Through legal representation, advice, national conferences, films, publications and public outreach, the Project promotes whistle-blowers as agents' of accountable government.
We are requesting the above information on behalf of our clientifor a monitoring project on the adequacy of the NHC's ef forts. to protect public saf ety and health at nuclear power plants.
For any documents or portions of documents that you deny due to a specific exemption, please provide an index itemizing and describing the documents or portions of documents withheld.
The index should pro-vide a detailed justification of your ground (s) for claiming each exemp-tion, explaining why cach exemption is relevant to the document or por-tion withheld.
This index is required under Vaughn v. Rosen (I), 484 F.2d 820 (D.C.Cir. 1973), cert. denied _, 415 U.S. 977 (1914).
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We look forward to hearing from you within ton working days.
Yours truly, f vG/sa m 53hoa G w b
\\Qy Director, cap citizens Clinie /$ M /if BILLIE GARDE I A/
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L s* w e J-c_ e s_,,,i), / 9 8'.d =...< MEMORANDUM FOR: Direct r RP Dire o DEP gg j Di. ect DRSMP Director, DRMA i FRCE: Region III FOIA Coordinator
SUBJECT:
FOIA REQUEST /./-9 0 sdtif s 1 The attached FOIA request has been received in RIII and the material requested must be submitted to the Director, DRMA by 1/ // 4 Please check the applicable block and returnthe form to me by 2hc7/ s 1. /~ 7 The Division of has no documents relating to this request; h'owever further ir. formation may be f available from (List other Division, Region (s), Offices, person (s).) s
- 2.. F/ The Division of has documents relating to this requestcand the search time is expected to be less than two (2) hours. IF THIS BIDCK IS CHECKED - PLEASE BEGIN SEARCH IMMEDIATELY.
3. O The Division of has ' documents relating to this i-request and.the search time is expected to be more j than two M), hours. IF THIS BIDCK IS CHECKED - DO i ,NOT BEGIN SEARCH UNTIL FIRST TALKING TO ME. I b Other Comments: Date Signature-Division Director or Designee Thank you for your cooperation. Pearl T. Smidth RIII FOIA Coordinator
Attachment:
As stated cc w/att: A. B.< Davis e...,<. ~~ .~..j '_ i;. ,__}}