ML20083Q512

Forwards Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 15 for 821226-830101.Minutes of Daily Meetings W/Assessment Team & Site Engineering Personnel Encl

ML20083Q512
Person / Time
Site:	Midland
Issue date:	01/05/1983
From:	Lucks A STONE & WEBSTER ENGINEERING CORP.
To:	Cook R NRC
Shared Package
ML20083Q415	List: ML20083Q495 ML20083Q512 ML20083Q532 ML20083Q541
References
MFP-15, NUDOCS 8302250421
Download: ML20083Q512 (7)

Text

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STONE G WEBSTER ENGINEERING CORPORATION 245 SUMMER STREET. BOSTON. massachusetts mooRess ALL CORRESPONDENCE TO P.O. BOX 2328. BOSTON. M Ass. 02107 W U TELEX 34 000 CM M L L. N J NS .WC? TON

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United States Nuclear Regulatory Conmission January 5, 1983 Midland Site Resident Inspection Office Route 7 J.O. NO 14358 Midland, MI 48640 Ref. MFP 15 Attention Mr. R. Cock RE: DOCKET NO. 50-329/330 Midland Plant - UNITS 1 and 2 INDEPENDENT ASSESSMENT OF AUXILIARY BUILDING UNDERPINNING REPORT No. 15 A copy of the Independent Assessment of the Auxiliary Building Under-pinning Weekly Report No. 15 for the period December 26, 1982 through January 1, 1983, is enclosed with this letter. Included, as an attach-ment, are the 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, d, $ 4 x, u)s te A. Stanley Lucks Project % nager Enclosures ASL/ka 8302250421 830211 PDR ADOCK 05000329 a PDR

J. O. NO. 14358 Midland Plant Units 1 and 2 Independent Assessment Auxiliary Building Underpinning Weekly Report No. 15 December 26, 1982 through January 1, 1983 Personrel on Site Stone & Webster Engineering Corporation (SWEC)

W. Kilker 12/27 - 12/30 L. Rouen 12/27 - 12/30 Parsons, Brinckerhoff, Quade and Douglas (PBQD)

P. Parish 12/28 - 12/30 Meetings Attended Date Represented. Purpose 12/27 Stone & Webster Daily Meetings through Bechtel 12/30 Consumers Power Parsons (12-28/12-30)

Activities Construction - The pier W12 drift excavation continued mainly through lean concrete and was advanced to completion, a total distance of approxir:tely 9 ft. from the turbine building r.orthwal1. The second steel set was installed and drift lagging was placed along the east side wheee a zone of backfill soil formed the excavation su'. fare. The quantity of perched groundwater entering the excavation has reduced to a trickle.

The pier E12 access pit has been completed and removal of the lean concrete and soil in the access drift was advanced an average of 2) ft. Perched groundwater flowing into the excavation was minor and was controlled by sump pumping.

J. O. NO. 14358

. . Midicnd Plcnt Units 1 and 2

. Independent Assessment Auxiliary Building Underpinning 2 Quality Control. Documentation and Records -

1. Reviewed the Quality Control Documentation on the modification of the first steel set including certification of the inspector and identification marks of the structural members.

2. Verified the completion of Inspection Reports by MPQAD for the east access pits.

Observations Construction - The construction of the piers W12 and E12 access pits and drifts has been advanced according to ths project requirements. The con-tractor has maintained accurate survey control, groundwater has been effi-ciently collected and pumped from the excavation, concrete removal has been careful and deliberate, and the steel set and lagging installation were done in accordance with the project documents and good industry practice.

Quality Control. Documentation and Records - The documentation of the steel set modification was accomplished in accordance with project procedures.

The final Inspection Reports on the access shaft had been properly com--

pleted.

Non-Conformance Identification Reports NIR #4 - Issued December 29, 1982 - Project procedure on allowable variances in weld rod size and electrical current do not conform to AWS codes.

Status of previous issues: (NIR numbers no longer listed have been closed-out during previous weeks.)

NIR No. Description Date (Opened) (Closed) 3 Coupler Testing Temperature 2/12/82 4 Welding Qualifi-cation Procedure 12/29/82 u)EMNa<- A S. %iu.

Project Engineer Project Manager

INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL 9

Date: December 27, 1982

' Attendees: Bechtel Stone / Webster MPQAD CPCo i

R. Bradford W. Kilker L. Kettren G. Murray E. Cvikl- L. Rouen

1. R. Bradford reported the first steel drift set installation was nearing completion and that the removal of concrete on pier W12 would now proceed.

2. E. Cviki said the work on shop modification of the steel set was released by QC after field e.ngineering had reviewed the shop drawing last Wednesday December 22, 1982.

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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL Date: December 28, 1982 Attendees: Bechtel Stone / Webster MPQAD CPCo "

R. Bradford V'. Kilker L. Kettren G. Murray E. Cviki Parsons Pete Parish

1. Discussion of engineering and QC interpretation of " construction aids."

ON-going discussions with respect to what *tvel of " construction aids" are required on drawings.

2. L. Kettren described the on-going process of QC certification. The excavation in concrete has had only

• minor impacts on progress of certification.

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INDEPENDENT ASSESSMENT TEAM MEETING WITH Bechtel Date: De'cember 29, 1982 Attendees: Bechtel Stone / Webster MPQAD CPCo R. Bradford W. Kilker R. Oliver G. Murray E. Cviki L. Rouen Parsons P. Parish

1. R. Oliver reported that MPQAD and FSO have met with respect to resolving issue of defining what is considered a " construction aid" and therefore not required to be shown on a drawing. A procedure will likely be developed to target the responibility for decision making and possibly field markingst will be used to distinguish "contruction aids" from structural members.

2. L. Rouen inquired as to who is responsible for tracking the Commit-ment Punchlist and how the procedure works. G. Murray said SMO uses the list constantly, but that it is developed in CPCo (Jackson.)

3 W. Kilker reminded R. Bradford that P. Parish questions from October on MCP 18, Ground Stabilization, had not been addressed. R. Bradford will take action.

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INDEPENDENT ASSESSMENT TEAM MEETING WITH BECHTEL Date: December 30, 1982 Atte'ndees: Bechtel Stone / Webster MPQAD CPCo J. Fisher W. Kilker R. Sevo G. Murray R. Bradford E. Cviki Parsons P. Parish

1. J. Fisher is looking into need for lagging against excavated surfaces in concrete. Will verify.

2. R. Bradford said MCP 18 on soil stabilization is now in Rev 5. The questions by P. Parish were based on Rev 3 W. Kilker will verify to see if all questions apply. Will notify R. Bradford.

3 J. Fisher & R. Sevo discussed need for jack calbration certification.

MPQAD is going to vendor laboratory early in January for auditing and performance teating.

4. R. Sevo reminded E. Cviki that when pier loading procedure is implemented, engineering must support QC in the effort.

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