ML20091F422
| ML20091F422 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 03/29/1984 |
| From: | Lucks A STONE & WEBSTER, INC. |
| To: | Cook R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML17198A223 | List:
|
| References | |
| CON-BOX-06, CON-BOX-6, FOIA-84-96 MPF-79, NUDOCS 8406020159 | |
| Download: ML20091F422 (17) | |
Text
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yA NL E!d File en United States Nuclear Regulatory Comission March 29, 1984 Midland Site Resident Office Route 7, J.O. No. 14358 Midland, Michigan Ref. M F 79 Attention: Mr. R.
Cook DOCKET No. 50-339/330 MIDLAND PLANT UNITS 1 & 2 INDEPENDENT ASSESSMENT OF UNDERPINNING REPORT NO. 79 A copy of the Independent Assessment of Underpinning Weekly Report No. 79 for the period of March 18, 1984 through March 24, 1984 is enclosed with this letter. Included as attachments 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.
A.
Stanley Lucks Project Manager Enclosures ASL/pd I
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2 APR 3 1984 i
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,s W_ EEXLY REPORT DISTRIBUTION LISJ Mr. R.
Cook (ene)
Grace Dow Memorial Library (enc)
Mr. D.
Quansne (one) 1 Mr. J.
Mooney (enc)
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Murray (enc)
Mr. J.
Meisenheimer (enc)
W. D.
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Mr. E.
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J. O. No. 14358 i
Midland Plant Units 1 & 2 Independent Assessment of Uhderpinning i
Weekly Report No. 79 March 18,1984 through March 24, 1984 1
Personnel en Site Stone & Webster Michigan, Inc.
1 l
P.
Majeski 3/18 - 3/20 D.
Benvie 3/19 - 3/24 R.
Lykens 3/18 - 3/20 D.
Zito 3/18 - 3/24 L.
Rouen 3/20 - 3/24 P.
Barry 3/19 - 3/23 Parsons Brinckerhoff Michigan, Inc.
J.
Oliveira 3/18 - 3/20
. l B.
Metros 3/20 - 3/24 Meetings Attended l
Date Represented Purpose 3/19 -3/23 Stene & Webster Daily Assessment i
i Bechtel Team Meeting Consumers Power l
Parsons 3/19 Consumers Power Inter-organizational Bechtel Meeting l
MPQAD Stone & Webster i
3/21 Consumers Power Engineering / Construction i
Bechtel Co-ordination Meetird l
MPCAD
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g Stone & Webster
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3/23 Consumers Power Project Soils l
Bechtel Meeting MPQAD i
l Stone & Webster I
Uhderpinning and Remedial Soils - Construction Pier Kc4:- Installation of the upper and lower leveling and bearing plates is in progress.
Pier W16: Placement of pier concrete was completed.
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Pier W13: Placeeent of concrete was completed.
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j Pier CT1/12: Placement of concrete in the pier shafts was completed.
Pier Kc9: toad transfer for the pier was completed.
Pier W16: Placement of pier concrete was completed.
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J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning E/WS Crillages: Jacking to increase the reserve capacity load at each grillage continued. he amount of loading on the east and west grillages is at 140% and 150% of the specified load,respectively.
Access Shaft Level "C" Wales: Fabrication of the anchor plate templates continued.
SWPS: Installation of the first level wales is in progress.
Assessment Team Observations - Construction Concrete placement for piers E/W16, the remainder of pier W13 from El.
592 to 597.5 and the shafts for pier CT1/12 was observed by the Assessment Team. During placement of the concrete for pier W13. a blockage in the pump occurred delaying the placement activities. De contractor took care to vibrate the placed concrete in order to maintain it in a workable I
condition until the placement activities resumed. Key items noted durird concrete placement at piers E/W16 included placement technique, concrete censolidation and availability of stand by equipment. Method of placement and consolidation of concrete were satisfactory. Availability 4
of backup equipment was satisfactory. When electric power was lost while placing concrete for pier E16, emergency lighting and vibrators were immediately placed into service. Interruption to the concrete placement activities was minimal.
Batch tickets for piers CT1/12 concrete were checked for conformance to the required mix proportions. Both tickets indicated that the batching for concrete constituents was in accordance with specifications.
We Assessment Team believes that the Contractor used preper techniques for all concrete placement activities and exhibited satisfactory plannir4 and co-ordination in minimizing the impact of delays to the concrete placement activities. In addition, the control of batchi'1g and transcortir4 of concrete was in accordance with applicable standards.
4 Lead transfer and the initial required rejacking was performed for pier Kc9.
Lead increments and the rate of loading for the initial load and rejacking conformed with applicable prrcedures.
Jacking loads were maintained at the specified values until the acceptance criteria was met. Absolute movement measured at the pier base was 0.051n.
Procedural requirements were effectively implemented during the initial lead transfer and rejacking of pier Kc9.
i The Assessment Team inspected backpacking of lagging completed to date for i
the SWPS soldier pile well. We evaluation considered the type of material l
and method of backpacking. De clean sand being used for backpacking is 9dequate tithough the use of spiling has been required to maintain the l
backpacking in place.
had fallen out from behind the lagging.In one area where no spiling had been us the Contractor innediately backpacked the resulting void.After being made aware o D e Assessment Team has discussed the use of a more suitable material with the Contractor.
4 De Centractor has agreed to evaluate alternatives for future use.
l B is evaluation should be comoleted expeditious 1v because as the excavation omeeada, the naed to 9
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3 J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning prevent loss of ground will become more important. he method of backpackird is adequate for the existing depth of excavation. However, a more concerted effort is needed to ensure that backpacking is placed in a uniform dense condition as an additional measure to prevent loss of ground trem occurrird as the excavation is deepened.
Assessment Team Observations CA/QC he Assessment Team completed a review of Quality Erdineering monitoring activities performed during 1933 in the area of Pesident Engineering Cocument Control, he Team found that significant progress has been made in upgradird the Pesident Engineer document control process in response to deficiencies noted durird the monitorird activities. De Assessment Team believes that the Quality Engineerir4 effort related to Resident Engineering has been effective in identifying problems and initiating corrective action. he recurring deficiencies indicate that Resident Erdineerird needs to ensure that corrective measures are fully implemented to complete the upgrading of the !aaument control process.
Re Assessment Team attended three FCR task force meetings this week. Be purpose of the FCR task force is to evaluate the FCR process and recomend actions to improve the FCR response times. Crgani:stions involvej with the task force include FSO, Pesident Er41neerird, Project Engineering and Consumers Power Co. he meatings were well organi:ed and the objectives of the task force are well jefined. De various organi:ations demonstrate an active interest in shortenird the response time for processing FCPs.
The FCR task force meetings will continue through the remainder of the menth. The Assessment Team will continue to overvirw this effort.
e De Assessment Team observed MPQAD preplacement inspection activities of reinforcird steel and embedments for concrete placement at pier CTI. Attributes checked by MPCAD include reinforcing steel clear cover and spacing, mechanical splice staggerird and proper placement of embedments. he Assessment Team believes that preplacement inspection activities were adequate to ensure compliance with the requirements of the design documents.
A review of workprints and an evaluation of weld rod and material control I
and storage was conducted at the Standish Fabrication Shop by the Assessment Team. A sample of work prints as reviewed to confirm that they wre the latest issue and to verify proper posting of attachments. The Team noted one of tne documents reviewed was an incorrect revision, however, the Contractor was at that time in the process of issuing the new revision to this workprint station. D e remaining workprints were found to be adequate and required attachments wre properly posted. An overview of material control and storage confirmed that all materials wre properly stored, identified and segregated. Weld rods were stored in ovens maintained at i
appropriate temperatures and access to rod storage was properly controlled.
De Assessment Team believes that document control procedures at the Standish Fabrication Shop are being implemented properly. Additionally, weld rod and mterial control and storsge is adequate to ensure that only approved material is used in the fabrication process.
4 J.O. ho. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning he Assessment Team reviewed the qualifications and certifications of 12 inspectors performing activities for 33 Project Inspection Plans and Reports (PIPR's) closed during the period 2/12/84 to 2/21/84 he inspectors' records were reviewed to detemine that education, experience, physical abilities and certifications for the specific activities are in accordance with the requirements. De review determined that the qualifications and certifications of all 12 inspectors were satisfactory.
Work Activity Packages he following Word Activity Package (WAP) overviews are in the open response atage or have been completed during the past week.
WAP No.
Title Status (Opened)(Closed) 57 Piers E/W5 and 3/21/84 3/21/84 Grillage. Drifts and Support Colums at Reactor Building Noneenfor~ance Identifiestion Reports ha followird Nonconferrance Reports (NIRs) remain open or have been closed durird the past week.
_NIR No, teseription Status (0pened)(Closed) 22 Resident Erdineerir4 2/21/84 Document Control Stations 23 Subcontractor Work 3/13/84 Print Stations 0 pan Ite.s Itet.s discussed during meetir4s are categori:ed as follows:
CPEN ITDC - An item for which an action is required. he item will remain oeen until the required action has been taken. Tracking is required.
C1EED ITDi - An item, usually brought forward by the Assessment Team that is discussed and adequately responded to. No tracking la required.
INFORMATION ITEM - An item, brought forward to provide general background information regarding work, such as work status or an upcoming design change.
No tracking is required.
CPINION ITDi - An opinion or suggestion, given by the Assessment Team expressing an alternate construction or quality assurance technique. The opinion or suggestion is given as a possible altemate that may facilitate an operation.
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5 J.0. No. 14358 i
Midland Plant Units 1 & 2 Independent Assessment of Underpinning i
CLOSES ITDI -XX-XX - This notation identifies an action that closes a previously identified open item. Trackinger the item stops.
j The following is a listing or all Open items from the :eily Meetird Notes with Bechtel and the text of the Weekly Reports. Carry-over items from past weeks which have been Closed this week are also listed.
Itom No.
Description Closure 64-7 QAP Review Program Open 64-10 Trend Analysis Open 71-17 Car.puterized Civil Open Drawing Register 71-29 Use of "Detired" FCMa Open 74-21 US Testird Corrective Open Action 74-25 Expansion Anchors open 75-9 RE Document Control Open i
i 77-12 FCR Processird Task Open Force 77-13 Drawing Attacment Stamp Open e
77-29 CE Monitoring Activities 79-22 78-22 Concrete Truck Inspect *.on 79-8 I
79-5 Bearir4 Plate at Kc9 open 79-26 Upper leveling Plate Open 79-29 SWPS Backpacking Material Open 79-34 3WP3 Backpacking Placement Open S A'l l
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Notes of Daily Meeting Independent Assess nent of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site i
Midland, Michigan March 19, 1984 Present For:
Consumers Power Bechtel MPOAD Stone & Webster G.
Murray J.
Fisher R.
Sevo P.
Majeski R.
Wheeler J.
Gaydos J.
McMaster D.
Benvie E.
Cviki D.
Zito Parsons Brinckerhoff J. -Oliveira PURPOSE
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Thismeetingisheldeachdaytodiscussitemsregardingthebdehndent Soils Assessment at the Midland Plant, Units 1 & 2.
DISCUSSION Status Items Item 79 Auxiliary Building Underpinning Activities.
Installation of rebar for piers CT1/12 shafts is in progress.
Load transfer for the Kc9 pier is scheduled for today.
Installation of rebar in pier E16 is complete. Placemer.t of concrete is scheduled for today.
Placement of rebar in W16 is in progress.
(INFORMATION ITEM)
Item 79 Dewatering Control Tower Area.
J.
Fisher reported that all 4 lateral wellpoints have been placed into service. Initially, cumulative flow for the four well points was approximately 6 gpm but as of today had decreased to about 1 gpm. Tne water level at piezometer BB-2 is at El. 584 indicating a drop in perched groundwater elevation of about 1.5 feet. (INFORMATION ITDf)
New Items \\ -
Item 79-3'-hFSOControlledDocumentReview.
J.
Fished reported that the monthly review of-FSO controlled documents for March was completed this weekend and preparation of a report summarizirs the results is in process. -P.
Majeski requested that the Assessment Team receive a copy of this report when it.is issued. (OPEN ITEM) j s,
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Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 19, 1984 Item 79 4 - MPQAD Welding Audit.
J.
Fisher reported that MPQAD began an audit today of FSO welding activities. (INFORMATION ITEM)
Item 79 Searing Plate at Kc9.
J.
Oliveira questioned why the bottom bearing plate brought to the work area for installation at pier Kc9 was rejected and replaced with another plate.
J.
Fisher will respond.
(OPEN ITEM)
Item 79 US Testing Work Teams.
P.
Majeski noted that the US Testing weekday team is pri=arily used
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for concrete placement. He asked, if in special situations, could adjustments in manpower be made to provide an extra team to preclude excessively long shifts.
J.
Fisher indicated that most concrete placement will be made during tM weekday period. The remaining US Testing teams are structured to perform other routine testing.
J.
Fisher indicated that he would respond to whether these teams could be supplemented by other personnel to allow for special. situations. (OPEN ITEM)
Item 79 FCR Processing.
E.
Cviki reported that the recent concerted effort to process outstand 1:g FCRs reduced the backlog from 43 to 19 over a 4 day period. This effort was undertaken to provide added assurance against delays during construction of piers CT1 and 12.
(INFORMATION ITEM)
Response Items Item 79 Concrete Truck Inspection.
In response to the Assessment Teams question, R.
Sevo provided a description of the procedures used to inspect the concrete t:acks and batch plant for accumulation of concrete on the mixing blades. The trucks are inspected and the batch plant is cleaned on a weekly basis by the supplier. MPQAD inspects both the trucks and the batch plant monthly. Based upon tnis information, the lumps of hardened concrete noted on the screen of the pump tmck on 3/15/84 are considered an anomalous situation by the Assessment Team. No adjustments to the program are considered necessary.
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S Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site i
Midland, Michigan March 20, 1984 Present For:
Consumers Power Bechtel MPOAD Stone & Webster O.
Murray J.
Fisher R.
Sevo D.
Zito R.
Wheeler J.
Gaydos J.
McMaster D.
Benvie J.
Schaub E.
Cviki P.
Barry J.
Mooney Parsons Brinckerhoff J.
Oliveira PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
DISCUSSION Status Items Item 79 Auxiliary Building Underpinning Activit.ies.
Lead transfer for pier Kc9 has been initiated.
The remaining concrete for pier W13 was placed from El. 592 (top of previous pour) to the tcp of the pier.
Installation of upper leveling plate Hilti bolts for pier Kc 4 is in progress.
(INFORMATION ITEM}
Item 79 QAP Review Program.
J.
McMaster stated that the QAP task force committee was currently reviewing the subcommittee recomendations concerning their review of construction orocedures.PQCIs and soecifications associated with expansion anchor installation, fabrication and erection of structural steel, and 'felding. based on this review, the committee will present recommendations for modifying these PQCIs, procedures and specifications to Consumers Power Company in the near future. (Item 64-7 remains OPEN)
(INFDRMATION ITEM)
Item 79 Dewatering Control Tower Area.
J.
Fisher reported that the volume of water pumped to date from the lateral wellpoints installed in the east and west UATs was 920 gallons and 3890 gallons.respectively. Water level readings taken at pie::ometer BB-2 show the perched groundwater level remained unchanged at El. 584 (INFORMATION ITEM)
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Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company i
Held at Midland Site Midland, Michigan March 20, 1984 New Items Item 79 Administrative and Ehgineering Management for US Testing.
J.
Fisher reported that FSO has assumed the administrative and engineering management responsibilities for the US Testing Contract.
from Balance of Plant as of today. (INFORMATION ITEM)
Item 79 SWPS Backpacking Material.
D.
Benvie noted that spiling was beir4 used to support the sand backpacking placed between the soldier pile wall lagging and the in-situ soil. He asked if consideration has been given to the use of an alternate type of backpack.ag material which did not require the use of spiling for support.
J.
Fisher will respond. (OPEN ITEM) y l
- i Item 79 MPQAD Controlled rbmment Station Review.
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McMaster stated that the MPQAD March monthly review of their j
controlled document station is in process. (INFORMATION ITEM)
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Item 79 Load Transfer of Piers CT1/12.
J.
Oliveira asked when load transfer of the CT1/12 piers will be performed.
J.
Fisher responded that jacking of the piers is scheduled for mid-April.
l (CLOSED ITEM)
Response Item Item 79 US Testing Work Teams.
J.
Fisher responded to tne Assessment Teams question concerning availability of US Testing manpower to support concrete placement activities on the weekend or evening shifts. US Testing personnel-j assigned to the weekend and evening shifts are qualified to' perform t
1 inspection activities related to concrete placement. If the type l
. j of concrete placement activity is such that additional manpower is l
required, US Testing inspectors on the regular weekday shift are available to supplement the weekend and evening teams.
The Assessment Team believes that adequate.US Testing manpower is available to cover
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concrete placement activities on all shifts. (CLOSES ITEM 79-6) l 9 :l' l :'5 p.,
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Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 21, 1984 Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray J.
Fisher J.
Maran D.
Zito R.
Wheeler J.
Gaydos,
P.
Barry E.
Cviki D.
Benvie L.
Rouen Parsons Brinckerhoff l
B.
Metros PURPOSE
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'Ihis meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
DISCUSSION Status Item.s Item 79 Auxilf3ry Building Underpinning Activities.
Placement of the first lift of concrete for the piers CT 1/12 shafts is scheduled for 3/22/84 Placement of concrete for pier E16 is scheduled for today.
(INFORMATION ITEM)
Item 79 SWPS Underpinning Activities.
J.
Fisher reported that the Wale section removed because of a laminor tear from the east side of the SWPS will not be used in any other location as part of the lateral support system. It was previously reported in Item 77-25 that this section would be reused. Instead, a new wale section will be used in place of the defective section.
D.
Benvie questioned the status of the embedded plate installation needed for fastening of struts to the SWPS north wall.
J.
Fisher reported that an NCR is being written to address inadequate L
concrete cover on the existing SWPS north wall at the specific plate' locations.
l Once the NCR has been closed out, an FCR will be initiated to allow cutting I
of rebar to facilitate embedded plate installation. (CLOSED ITEM) l f
l Item 79 NIR # 22-Resident Engineering Document Control Review.
E.
Cviki stated that Resident Engineering response to the QAR concerning NIR #22 is scheduled for issuance on 3/23/84. Incorporation of corrective l
action into document control procedures to address the findings of NIR #22 is scheduled for 4/12/84. (NIR #22 remains OPEN) (INFORMATION ITEM) e
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Notes of Daily Meetir4s Independent Assessment of Underpinnirs Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan N rch 21, 1984 New Items Item 79 Weekly Report # 78.
The text of Weekly Report # 78 was reviewed. It was determined that all open items had been previously identified. (CLOSED ITEM)
Item 79 Senior Management Review Team.
D.
Benvie stated that members of the Stone & Webster Senior lianagement Review Team for the Midland Project will be on site 4/2/84 to 4/3/84.
(INFORMATION ITEM)
Respense Items Item 79 CE Monitoring Activities.
D.
Benvie stated that the Assessment Team has all of the.necessa. y information requested to complete its evaluation of the Quality Er.gineering Activities in 1933 which pertain to proper posting of attachments to design documents. Therefore, item 77-29 may be closed. (CLOSES ITEM 77-2Y) i e
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Notes of Daily' Meeting Independent Assessment of Underpinnirs Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site-Midland, Michigan March 22, 1984 Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray J.
Fisher R.
Sevo D.
Zito R.
Wheeler J.
Gaydos P.
Barry J.
Schaub E.
Cviki D.
Benvie W.
Brandes L.
Rouen Parsons Brinckerhoff B.
Metros PURPOSE This meetira is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
DISCUSSION Status Ite.?.s Item 79 Auxiliary Building Underpinnirs Activities.
Placement of concrete for pier E16 has been completed.
Installation of rebar has been completed for pier W16 Placement of concrete is scheduled for today.
The lead transfer for the Kc9 pier has been completeo.
(INFORMATION ITEM)
Item 79 US Testing Corrective Action.
i J.
Fisher stated that issuance of US Testing work instructions has been rescheduled for completion on or about 5/1/84 The additional time is to allow US Testing to make format changes to the work instructions.
74-21 remains OPEN) (INFORMATION ITEM)
(Item t
Item 79 Expansion Anchors.
5 E.
Cvil L provided an update on methods that will be implemented to improve the inst.llation of Hilti bolts associated with the underpinning work.
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A DCN has een issued to allow loosening of Hilti bolts to a specified load after inftial tensioning until construction activities in the vicinity of I
the bolt,1 ave progressed away from the installation area.
After the work has progt!ssed far enough such that vibrations due to the work in crogress do not act the Hilti bolts, these bolts will then be retensioned to design load.
FCR will be written to allow the use of a rapid set grout to provide a i
uniform ssrface beneath the bearing plate.
(INFORMAT;')N ITEM)
(Item 74-25 remains OPEN)
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Notes of Daily Meeting Independent Assessment of Underpinning i
Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 22, 1984 New Items Item 79 Upper Leveling Plates.
D.
Benvie noted that welding required to fasten the upper leveling and bearing plates together for piers Kc4 and Kc9 had caused warping of the upper leveling plate. The plates were rejected when the warpirg was identified while attempting to install the plates. De rejected plates were then replaced with properly aligned plates. The Assessment Team requested FSO to evaluate possible changes to the installation process and/or weldira requirements in order to prevent warpage from occurrird on future plate installations.
J.
Fisher will respond. (OPEN ITEM)
Item 79 Action Plan for Engineering Document Control.
J.
Schaub discussed planned revisions to improve the existing Resident Engineering document control system. One aspect of the plan includes upgrading and implementation of the design document register as a means for controlling the issue of design changes. Implementation of a uniform program for posting attachments to controlled documents is also included to upgrade the system. A presentation will be given in the near future detailing specific revisions to the document control program. (INFORMATICN ITEM)
Pesponse Items Item 79 SWPS Backpack 1ra Material.
J.
Fisher responded to the Assessment Team question concerning backpackirs for the SWPS soldier pile wall. Other types of backpacking which can be maintained in place without the use of spiling will be evaluated for use as the excavation is advanced further. Spiling will still be used as required to support the in-situ soil. The Assessment Team concurs witn this response. The ite will remain open until the Team's evaluation is complete.
(CLOSES ITEM 79-13) (OPEN ITEM)
Item 79 FSO controlled Document Review.
i J.
Fisher provided the Assessment Team with a copy of the report summarizing the results for the March monthly review of the FSO controlled document station. (CIDSES ITEM 79-3)
Notes of Daily Meeting Independent Assessment of Underpinnirs Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan l
March 23, 1984 Present For:
Censumers Power Bechtel MPOAD Stone & Webster G.
Murray J.
Fisher R.
Sevo P.
Barry S.
Dent::
J.
McMaster D.
Benvie L.
Rouen Parsons Brinckerhoff B.
Metros PURPOSE This meeting is held each day to discuss items regarding the Independent Assessment at the Midland Plant, Units 1 & 2.
DISCUSSION Status Items Item 79 Auxiliary Building Underpinning Activities.
Concrete placement for pier W16 has been completed.
Placement of concrete for the piers CT1/12 shafts is scheduled for today.
Jacking for reserve capacity loading of the "d8 grillage is in progress.
Routine jacking of pierKc9 required for the first 3 days after initial load lock off is in progress.
(INFORMATION ITEM)
Item 79 Upper Leveling Plates.
J.
Fisher stated that FSO plans to process an FCR to address warpage concerns associated with the pier upper leveling plates. The planned FCR will be written to either specify the use of a smaller weld or decrease the length of the weld presently being used to prevent warpage from occurring on future plate installations. (Item 79-26 remains OPEN) (INFORMATION ITD1)
Item 79 NIR.22 - Resident Engineering Document Control.
P.
Barry discussed the resolution of NIR 22. The Assessment Team will close NIR22 based on a satisfactory response to that portion of the QAR which addresses Resident Engineering Document Control related to the remedial soils work. The Assessment Team will continue to evaluate as part of their overall-assessment, modifications to Resident Engineering document control that are being undertakentoimprovethedocumentcontrolprocess.(NIR22 remains OPEN)
(INR)RMATION. ITEM) h
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Notes of Daily Meecing Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan Nrch 23, 1984 Item 79 NIR 23 - Subcontractor Work Print Stations.
R.
Sevo stated that closure of the QAR initiated in response to NIR 23, identifying work station document deficiencies, is scheduled for today.
(NIR23 remains OPEN) (INFORMATION ITEM)
New Items Item 79 SWPS Backpacking Placement.
B.
Metros discussed backpacking for the SWPS soldier pile wall. It was pointed out that backpacking performed to date is adequate for the existir4 shallow depth of excavation. However, as the excavation is deepened below the present depth ~of 5-feet,~the' method of backpacking should be. altered to prevent possible loss'of ground from cehind the lagging. This item remains open while the Assessment Team evaluates modifications to the method of backpacking. (OPEN ITEM)
Response Items l
No response items were addressed.
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