ML20091E925
| ML20091E925 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 03/29/1984 |
| From: | Lucks A STONE & WEBSTER, INC. |
| To: | Cook R NRC |
| Shared Package | |
| ML20091E782 | List: |
| References | |
| MPF-79, NUDOCS 8406010408 | |
| Download: ML20091E925 (17) | |
Text
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PJINCIPAL STAFF G ~; BrCDPRP STONE & WEBSTER MICHIGAN, INC.
0/PA DE f/RA DRMsp P.O. Box 2325, BOSTON M ASSACHUSETTS O2107 LRC Ot<.t A 20 iCS 4 g t/gf;
_3GA ML V
fy File g 5 United States Nuclear Regulatory Comission March 29, 1984 Midland Site Resident Office
~
Poute 7, J.O. No. 14358 Midland, Michigan Ref. MPP 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.
5.fou A.
Stanley Lucks Project Manager Enclosures ASL/pd I
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WEEXLY REPORT DISTRIBUTION LIST Mr. R.
Cook (ene)
-Grace Dow Memorial Library (enc)
W. D.
Quamme (enc)
Mr. J.
Mooney (enc) i
- W. G.
Nrray (enc)
Mr. J.
Meisenheimer (enc)
W. D.
tavelle (enc)
Mr. E.
Cviki (er.c) 1 1-1 l
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J. O. No. 14358-Midland Plant Units'1 & 2
-l <
Independent Assessment of thderpinning Weekly Report No. 79 March 18. 1984 through March'24, 1984
- Personnel on Site Stone & Webster Michigan, Inc.
P.
Majeski 3/18 - 3/20 D.
Benvie 3/19 - 3/24 R.
Lykens 3/18 - 3/20 D.
Zito 3/18 - 3/24 i:
L.
Rouen 3/20 - 3/24 P.
Barry 3/19 - 3/23 Parsons Brinckerhoff Michigan, Inc.
J.
Oliveira 3/18 - 3/20
~ B.
Metros 3/20 - 3/24 Meetings Attended Date Represented Purpose i
3/19 -3/23 Stone & Webster Daily Assessment l
Bechtel Team Meeting Consumers Power Parsons 3/19 Consumers Power.
Inter-organizational e
Bechtel Meeting MPQAD Stone & Webster 3/21 Consumers Power Engineering /Constr,: tion I
Bechtel Co-ordination Meeting' i
MPQAD Stone & Webster 3/23 Consumers Power Project Soils Bechtel Meeting MPQAD Stone & Webster-thderpinning and Remedial Soils - Construction 7
Pier Kc4:-
Installation of the upper and lower leveling and bearing plates l
is in progress.
Pier W16: Placement of pier concrete was completed.
Pier W13: Placement;of concrete was completed, t
Pier CT1/12: ' Placement of concrete in the pier shafts was completed.
l Pier Kc9:
- 1. cad transfer for the pier was completed.
Pier W16:. Placement of pier concrete was completed.
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_.__._.m.
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.o 2
i J.0. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning E/W8 Grillages: Jacking to increase the reserve capacity load at each grillage continued. The amount of loading on the east and west grillages is at 140% and 150% of the specified load, respectively.
Access Shsft Level "C" Wales:
Fabrication of the anchor plate templates continued.
SWPS:
Installation of the first level wales is in progress.
Assessment Team Observations - Construction I
Concrete placement for piers E/W16, the remainder of pier W13 rrom 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 p"mp occurred delaying the placement activities. The contractor took c
'e to vibrate the placed concrete in order to maintain it in a workable condition until the placement activities resumed. Key items noted during concrete placement at piers E/W16 included placement technique, concrete consolidation and availability of stand by equipment. Method of placement and censolidation of concrete were satisfactory. Availability 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.
The Assessment Team believes that the Contractor used proper techniques for all concrete placement activities and exhibited satisfactory planning and co-ordination in minimizing the impact of delays to the concrete placement activities. In addition, the control of batching and transoorting of concrete was in accordance with applicable standards.
Load transfer and the initial required rejacking was performed for pier Kc9.
Load increments and the rate of loading for the initial load and rejacking conformed with applicable procedures. 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 load transfer and rejacking of pier Kc9.
The Assessment Team inspected backpacking of lagging completed to date for the SWPS soldier pile wall.
The evaluation considered the type of material and method of backpacking. The clean sand being used for backpacking is adequate although the use of spiling has been required to maintain the backpacking in place. In one area where no spiling had been used, the backpacking had fallen out from behind the lagging.
After being made aware of this situation, the Contractor imediately backpacked the resulting void. 1he Assessment Team has discussed the use of a more suitable material with the Contractor. The Contractor has agreed to evaluate alternatives for future use. This evaluation should be completed expeditiously because as the excavation proceeds, the naed to A
3 J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning pmvent loss of ground will become more important. he method of backpacking 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 Irom occurring as the excavation is deepened.
Assessment Team Observations QA/QC he Assesrment Team completed a review of Quality Engineering mohitoring activities performed during 1983 in the area of Resident Engineering Document Control, he Team found that significant progress has been made in upgrading the Resident Engineer document control process in response to deficiencies l
noted during the monitoring activities. he Assessment Team believes that the Quality Engineering effort related to Resident Engineering has been effective in identifyin6 problems and initiating corrective action. he recurring deficiencies indicate that Resident Engineering needs to ensure that corrective measures are flilly implemented to complete the upgrading of the document control process.
he Assessment Team attended three FCR task force meetings this week. he purpose of the FCR task force is to evaluate the FCR process and recomend actions to improve the FCR response times. Organizations involved with the task force include, FSO, Msident Engineering, Froject Ehgineering and Consumers Power Co. he meetings were well organized and the objectives of the task force are well defined. he various organizations demonstrate an active interest in shortening the response time for processing FCRs.
he FCR task force meetings will continue through the remainder of the month, he Assessment Team will continue to overview this effort.
h e Assessment Team observed MPQA0 preplacement inspection activities of reinforcing steel and embedments for concrete placement at pier CT1. Attributes checked by MPQAD include reinforcing steel clear cover and spacing, mechanical splice staggerird and proper placement of embedments. The 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 and storage was conducted at the Standish Fabrication Shop by the Assessment Team. A sample of work prints uns reviewed to confirm that they were the latest issue and to verify proper posting of attachments. he Team noted one of the 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. h e remaining workprints were foind to be adequate and required attachments were properly posted. An overview of material control and storage confirmed that all materials were properly stored, identified and segregated. Weld rods were stored in ovens maintained at appropriate temperatures and access to rod storage was pmperly controlled.
The Assessment Team believes that document control procedures at the Standish Fabrication Shop are being implemented pmperly. Additionally, weld rod and material control and storage is adequate to ensure that only approved material is used in the fabrication process.
r--
g J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning he Assessment Team reviewed the qualifications a'nd certifications of 12 inspectors performing activities for 33 Project Inspection Plans and Reports (PIPR's) clo.eed during the period 2/12/84 to 2/21/84 h,e inspectors' records were reviewed to determine that education, experience, physical abilities and certifications for the specific activities are in accordance with the requirements. he review determined that the qualifications and certifications of all 12 inspectors were satisfactory.
Work Activity Packages-The following Work Activ:.ty Package (WAP) overviews are in the open response stage or have been completed during the past week.
WAP No.
Title Status (Opened)(Closed) 57 Piers L/W5 ani 3/21/84 3/21/84 Grillage, Drifts and Support Columns at Reactor Building Nonconformance Identification Reports he following Nonconformance Reports (NIRs) remain open or have been closed during the past week.
NIR No.
Description Status (0pened)(Closed) 22 Resident Engineering 2/21/84 Document Control Stations 23 Subcontractor Work 3/13/84 Print Stations Open Items Items discussed during meetings are categorized as follows:
OPEN ITDG - An item for which an action is required. The item will remain open until the required action has been taken. Tracking is required.
CLOSED ITDi - An item, usually brought forward by the Assessment Team that is discussed and adequately responded to. No tracking is 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.
OPINION ITEM -
An opinion or suggestion, given by the Assessment Team expressing an alternate construction or quality assurance technique.
Re opinion or suggestion is given as a possible alternate that may facilitate an operation.
5 J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning CLOSES ITEM -XX-XX - This notation identifies an action that closes a previously id(ntified open item. Trackingor the item stops.
The following is a listing of all Open items from the Eeily Meeting 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.
Item No.
Description Closure 64-7 QAP Review Program Ohen 64-10 Trend Analysis Open 71-17 Computerized Civil Open Drawir.g Register 71-29 Use of " Retired" FCRs Open
'T 74-21 US Testing Corrective Open Action 74-25 Expansion Anchors Open i
75-9 RE Document Control Open 77-12 FCR Processing Task Open Force 13 Drawing Attachmenb Stamp Open 77-29 b Monitoring Activities 79-22 78-22 Concrete Truck Inspection 79-8 79-5 Bearing Plate at Kc9 Open 79-26 Upper leveling Plate Open 79-28 SWPS Backpacking Material Open 79-34
'SWPS Backpacking Placement Open So-ASL wKs Fr$i$ect EngIheer Eik5jeet 'Mdhager t
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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 Present For:
Consumers Power Bechtel MPQAD r
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.
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 Activities.
Installation of. rebar for piers CT1/12 shafts is in pregress.
Load transfer for the Kc9 pier is scheduled for today.
Installation of rebar in pier E16 is complete. Placement 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 wellpoin'.s 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 piezameter BB-2 is at El. 584 indicating a drop in perched groundwater elevation of about' 1.5 feet.
(INFORMATION ITD4)
- New Items Item 79 FSO Controlled Document Review..
- J.
Fisher reported that the monthly review of FSO controlled documents for March was completed this weekend and preparation of a report sumarizing the results 1.s in process.
P.
Majeski requested that the Assessment' Team receive a copy of this report when it is issued. (CTEN ITEM) o MI
+
I LNotes of Daily Meeting Independent Assesament of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Pidland, Michigan I
tiarch 19, 1984 itm 79-4 ~- MPQAD Welding Audit.
J.
Fisher reported that MPCAD began an audit today oft FSO welding activities. (INFORMATION ITEM)
Item 79 Bearing Plate at Kc9.
J.
Oliveira questioned why the bottom bearing plate brought to the w'ork area for installation at pier Kc9 was rejected and replaced with another plate.
J.
Fisher will respond.
(OPEN ITEM)
L Item 79 US Testing Work Teams.
i P.
Majeski noted that the US Testing weekday team is primarily used 4
for concrete placement. He asked, if in special situations, could j
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 the weekday period. he recaining US Testing teams are structured to perform other routine testing.
J.
Fisher indicated that he would rerpond 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 outstanding 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 ITDf)
Response Items 4.em 79 Concrete Truck Inspection.
In response to the Assessment Teams question, R.
Sevo provided a description of the procedures used to inspect the concrete trucks and batch plant for accumulation of concrete on the mixing blades. De trucks are inspected and the batch plant.is cleaned on a weekly basis by the supplier, ffQAD inspects both the trucks and the batch plant monthly. Based upon this-informat 4, the lumps of hardened concrete noted on the screen of the-
. pump truck on 3/15/84.are considered an anomalous situation by the Assessment Team. No adjustments to the program are considered necessary.
(CLDSES ITEM 78-22) 4 4
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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 20, 1984 New Items Item 79 Administrative and Ehgineering Management for US Testing.
J.
Fisher reported that FSO has assumed the administrative and engineering mnagement responsibilities for the US Testing Contract.
from Balance cf Plant as of today.
(INFORMATION ITEM)
Item 79,13 - SWPS Backpacking Miterial.
D.
Benvie noted that spiling was being 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 backpacking material which did not require the use of spiling for support.
J.
Fisher will respond.
(OPEN ITEM)
Item 79 MPQAD Controlled nnmment Station Review.
J.
McMaster stated that the MPQAD March monthly review of their controlled document station is in process.
(INFORMATION ITEM)
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.
(CLOSED ITEM)
Response Item ltem 79 US Testing Work Teams.
J.
Fisher responded to the Assessment Teams question concerning availability of US Testing manpower to support concrete placement activities on the weekend or evening shifts. US Testing personnel assigned to the weekend and evening shifts are qualified to perfom inspection activities related to concrete placement. If the type of concrete placement activity is such that additional manpower is required, US Testing inspectors on the regular weekday shift am available to supplement the weekend and evening teams.
The Assessment Team believes that adequate US Testing manpower is available to cover concrete placement activities on all shifts.
(CLOSES ITEM 79-6)
Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 20,1984
'Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray J.
Fisher R.
Sevo D.
Zito R.
Wheeler J.
Caydos J.
McMaster D.
Benvie J.
Schaub E.
Cviki P.
Barry J.
Mocney Parsons Brinckerhoff J.
Oliveira PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assesscent at the Midland Plant, Units 1 & 2.
DISCUSSION Status ~tems Item 79 Auxiliary Building Underpinning Activities.
Load transfer for pier Kc9 has been initiated.
The remaining ccr. crete for pier W13 was placed from El. 592 (top of previous pour) to the top of the pier.
Insta11atien of upper leveling plate Hilti bolts for pier Kc-4 is in progress.
(INFORMATION ITEM?
Item 79 CAP Review Program.
J.
McMaster stated that the QAP task force committee was currently reviewing the subcommittee recommendations concerning their review of construction crocedures.POCIs and specifications associsted with expansion inchor installation, fabrication and erection of structural steel, and Nelding. 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)
(INFORMATION 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 gallors.respectively. Water level readings taken at piezometer BB-2 show the perched genundwater level remained unchanged at El. 584 (INFORMATION ITEM)
Notes of Da11y Meeting Independent Assessment of Underpinning Midland Plant. Units 1 & 2 Const.mers Power Company Held at Midland Site Midland, Michigan March 21, 1984 Present For:
,C,ensumers Power Bechtel MPCAD Stone & Webster G.
Murray J.
Fisher J.
Moran D.
Zito R.
Wheeler J.
Gaydos P.
Barry E.
Cviki D.
Benvie
- i..
Rouen Parsons Brinckert.off s
B.
Metros PURPOSE This meeting 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 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 to used in place of the defective section.
D.
Denvie 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 concrete cover on the existing SWPS north wall at the specific plate locations.
Once the NCR has been closed out, an FCR will be initiated to allow cutting of rebar to facilitate embedded plate installation. (CLO3ED ITEM)
Item 79 NIR # 22-Resident Ehgineering Document Control Review.
E.
Cviki stated that Resident Er41neering response to the QAR concerning NIR #22 is scheduled for isstwice on 3/23/84.
Incorponition of corrective action into document centrol r,rocedures to address the findings of NIR #22 in scheduled for 4/12/84.
(NIH #22 twnina OPEN) (INFORMATION ITEM)
t Notes of Daily Meetings Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 21, 1984 New ktems Item 79 Weekly Report # 78.
The text of Weekly Report # 78 was reviewed. It was detemined 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 Management Review Team for the Midland Project will be on site 4/2/84 to 4/3/84.
(INFORMATION ITEM)
Response Items Item 79 QE Monitoring Activities.
D.
Benvie stated that the Asses =:nt Team has all of the necessary information requested to complete its evaluation of the Quality Engineerird Activities in 1933 wnich pertain to proper posting of attachments to design documents. Therefore, item 77-29 may be closed.
(C1,03E3 ITEM 77-29) 4
4 Notes Gf Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Helit at Midland Sitea t
Midland, Michigan March 22,1984 Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray J.
Fisher R.
Sevo D.
Zito R.
Wheeler J.
Caydos P.
Barry J.
Schaub E.
Cviki D.
Denvie W.
Brandes L.
Rouen Parsens Brinckerhoff B.
Metros PURPOSE his meeting is i. eld each day to discuss items regarding the Independent Soils Assessment at the Midisnd Plant, Units 1 & 2.
DISCUSSION Status Item.1 Item 70 Auxiliary Building Underpinnity Activities.
Placement of concrete for pier Elb has been completed.
Installation of rebar has been completed for pier W16 Placemnt of concrete is scheduled for today.
The lead transfer for the Kc9 pier has been completed.,
(INFORMATION ITD1)
Itam 7%24 - US Testing Corrective Action.
J.
Fisher stated that issuance of US Testing work instructions has been rescheduled for completion on or about 5/1/84 ne additional time is to allow U3 Testing to make format changes to the work instructions. (Iten 74-21 remains CPEN) (INF0FATION ITEM)
Item 79-25,-
Expansion Anchers.
E.
Cviki provided an update on methods that will be implemented to improve the installation of Hilti bolts associated with the underpinning work. A DCN has been innued to allow loosening of Hilti bolts *o a specified load after initial tensioning until construction activities in the vloinity of the bolt have progressed away from the installation area. After the work has progressed far enough auch that vibrations due to the work in progress do not impact the Hilti bolta, these bolts will then be retNatoned to desian load. An FCR will be written to allow the use of a rapid set grout to provide a uriform surface ternth the twerirw plate.
(Item 74-25 remins OPEN)
(INFORMATION ITD4)
(-
Notes of Daily Meeting Independent Assessment of Underpinning 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 arst bearing plates together for piers Kc4 and Kc9 had caused warping of the upper levelird plate. The plates were rejected when the warping was identified while attempting to irattJ.1 the plates. The rejected plates were then replaced with properly aligned pistes. The Assessment Team requested FSO to eva12 ate possible charges to the installation process and/or welding requirements in order to prevant warpage from occurring on future plate installations.
J.
Fisher will respond. (OPEN ITEM)
Item 79 Action Plan for Engineering Document Control.
J.
Schsub discussed planned revisions to improve the existing Resident Engineering document control syntem. Che aspect of the plan includes upgrading and implementation of the design document register as a means for contro111n6 the issue of design changes. Itplementation of a uniform program for posting attachments to controlled documents is also ircluded to upgrade the system. A presentation will be given in the near future detailing specific revisions to the document control program.
(INFORMATION ITEM) 8esponse Items Item 79 SWPS Backpacktr4 Material.
J.
Fisher responded to the Assecament Team question concerning backpacking for the SWPS soldier pile wall. Other types of backpacking which can be raintained in place without the use of spiling will be evaluated for uni as the excavation is advanced further. Spiling will still be used as required to support the in-situ soil. The Assessment Team concurs with this response. The item will remain epen until the Team's evaluation is oceplete.
(C14SES ITEM 79-13) (OPEN ITEM)
Itm 79 FSO Controlled Document Review.
J.
Fisher provided the Assessment Team with a copy of the report sumrarizing the results for the March monthly review of the FSO controlled document station.
(CIDSES ITDt 79-3)
Notes of Daily Mee'.ing Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland. Michigan March 23,19814 Present Fort Consumers Power Bechtel MPOAD Stone & Webster 0.
Harray J.
Fisher R.
Sevo P.' Barry S.
Dent:
J.
McMister D.
Benvie L.
Rouen Parsons Beinekerhorr B.
Metros PURPOSE D11s meetird in held each as/ to discuss items regarding the Independent Assessment at the Midland Plant, Unita 1 & 2.
DISCUSSION Status Items Item 70 Auxiliary Building Underpinning Activities.-
Concrete placement for pier W16 has been completed.
Placement of concrete for the piers CT1/12 shafts ti scheduled for today.
Jacking for reserve capacity loading of the V8 grillage is in progress.
Routine jacking of pierKc9 required for tne first 3 days after initial load lock off is in progress..
(INFORMATION ITEM)
Itam 70 Upper Leveling Plates.
J.
Finher stated that F00 plans to process an FCR to address warpage concerns associated with the pier upper leveling plates. Die 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 installatiefs.
(Item 79-26 remains OPEN)
(INFORMATION ITEM)
Item 79 NIR 42. Besident Engineering Document Control.
P Barry discussed the resolution of NIR 22. The Assesament Team will close NIR22 based on a sattafectory responne to that portion of the QAR tetich addresses Besident fagineering Doctwnt Control related to the remedial solla work. Die Aaseaament Team will continue to evaluate as part of thir overall assessment,modificatiefs to healdent Engineerird document control that are betng undertaken to improve the document controi process.h!R 22 remains OPEN)
(INFORMATION ITtM)
i Notes of Daily Meeting l
Independent Assessment of thderpinning Midland Plant, Unita 1 4 2 Consumers Power Company Held at Midland Site Midland, Michigan l
h rch 23, 1984
[
l Item 79 NIR 23 - Subcontractor Work Print Stations.
R.
Sevo stated that closure of the QAR initiated in responas to NIR 23, f
identifying work station document deficiencies, is scheduled for today.
(NIR23 remains OPEN) (INFORMATION ITD!)
e t
l New Iten,s Item 79 SWPS Backpacking Placement.
B.
Metra discussed backpacking for the SWPS soldier pile wall.
It was pointed out that backpacking perforwed to date is adequate for the existing shallow depth of excavatien. However, as the excavation is deepene1 below the present depth or 5 feet, the method of backpacking should be altered to i
prevent wasible loss of ground from behind the laming.. his item remains open whl,e the Assessment Team evaluates modifications to the method vf backpacking.
(OPEN ITEM) l Response Items No response items were addressed.
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