ML20092C973
| ML20092C973 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 06/06/1984 |
| From: | Lucks A STONE & WEBSTER, INC. |
| To: | Burgess B NRC |
| References | |
| MPF-89, NUDOCS 8406210398 | |
| Download: ML20092C973 (17) | |
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STONE & WEBSTER MICHIGAN, INC.
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P.O. box 2325 BOSTON, M ASSACHUSETTS O2107 3GA
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i4L ENF File &
United States Nuclear Regulatory Corritission June 6, 1984 Midland Site Resident Office Route 7, J.O. No. 14358 Midland, Michigan Ref. MPF 89 Attention: Mr. B. L.
Burgess DOCKETNO.50-h/330 MIDLAND PLANT UNITS 1 & 2 INDEPENDENT ASSESSMENT OF UNDERPINNING REPORT No. 89 A copy of the Independent Assessment of Underpinning Weekly Report No. 89 for the period of May 27, 1984 through June 2, 1984 is enclosed with this letter. Included as attachments are the minutes of the daily reeetings held during the week between reembers of the Assesstrent Team and Site Engineering, Construction, and Quality Assurance personnel.
If you have any questions with respect to this report please contact rce at (617) 589-2067.
k-JN-r u bG A.
Stanley Lucks Project Manager Enclosures ASL/pd i
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. Under* innin,a"and 55 medial Soils - Constrth tion / 4 g
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Placerrent and aMgnment bf the grillage beams was completed.
Installa'cion of the /cper leveling and bearing plate assemblies for the three Jack locations at each grillage la in progress.
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1 Piec KcB:n Bell excavation.and placement of tihe concrete mudmat was completed.
3:!ig rcing steel installation is in progress'.
.s 14 P ar E17: Routine rejacking following initial lqad transfer of the center 4
pcf5ph;of,'the pier was completed. Extension' of'the drift to pentit enlarging c
the kter has bekrun.
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Placement of bell concrete was completed.
Installation of shaft 'r%in'torging steel and instrumentation is in p'rjress.
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J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning Pier W17: No further activity was perfonted pending fabrication of lagging raterials to support the enlarged shaft.
East / West Access Shaft: Excavation for zones Y/Z3 (El. 591.5') neared completion.
SWPS:
Installation of the upper level wales continued on the north and west sides. Excavation of the east access shaft was extended to El. 619.
BWST: Reinforcing steel, fonr. work installation, and concrete placement continued.
Cathodic Protection:
Trench excavation and backfilling work continued.
Unit No. 2 HVAC Foundation Pad: Excavation for _nstallation of the foundation pad was completed.
Assessment Team Observations - Construction
-At the Auxiliary Building, the Assessment Team observed the Contractors' activities associated with extending the east and west access shafts to El. 591.5'.
Each of the temporary slopm from the shaft perimeter toward the E/W8 grillages was excavated in accorcance with the design drawings.
Installation of lagging and backpacking for the access shafts followed closely as the excavation proceeded, minimizing the potential for loss of ground. B e Contractor was careful to minimize vertical and lateral over excavation as the work progressed. After installation of several lagging pieces for each wall panel, the craftsmen tamped the backpacking into place,thus ensuring proper bearing between the lagging and in-situ soil. Seepage of groundwater into the southeast corner of the east access shaft was effectively controlled. The Contractor installed a horizontal drain into the soil behind the wall and the area around the drain pipe was then grouted, forcing the water through the pipe and in turn to a sump.
Installation of the E/WS grillage beams began this week. Be Assessment Team observed placement, alignment and the independent survey for final location verification of the grillage bears. The bears were carefully moved through the highly restrictive access area and set at their placement locations without darage to the members. Transverse and longitudinal alignment and plumb were verified throughout the installation process. Scribe marks on top of the bears served as the prirary alignment points although periodic checks were made at the beam and bearing pad interface for additional survey control.
Once the Subcontractor completed placement and alignment of the beams, the Contractor conducted an independent verification survey of the installation.
W e survey verified that the beam locations were accurate, satisfactorily completing the placement and alignrmnt activity.
he Assessment Team inspected the completed reinforcing steel and embedded plate installations for piers CT 3/10. The inspection verified that the i
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p number, size,,locationfand spacing of reinforcing steel confonted with
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the design ~ drawings, Additionally, the stagger for the Fox-Howlett couplers (O
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and location "ct the embedded plates on the north side of the piers were Q-dete'rmined td oe in compliance with design requirements.
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Excavatiod/, lagging installation, and backpacking of the SWPS east access shaft is' osaring certpletion. Aided by careful in-process inspection and
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supervision by both Resident Engineering and Field Engineering and the use
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y' M.l' of a cohsistent installation methodology, the backpacking c6ntinues to improve.
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'Ihc. Assessment. Team over-viewed concrete pre-placement and placement activit-les for construction of the Unit 2 BWST ring beam addition. Prior to place-5 ment, the area was thoroughly cleaned of all debris and water was removed by means of sumping. Forms were adequately braced and tight to prevent loss of mortar. Removable formuork spreaders were installed to ensure proper reinforcing. steel clear cove'r was traintained during concrete placement. Pre-
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. p planned con?. rete placement. points were designated and backup concrete vibrators wers made \\available to ensure' continuous placement of concrete once the work 'stiartee'. During placement, concrete was placed so that the traximum allowable 311ft thickness'was, nobexceeded.
In areas of heavy rein-forcing stdel congestion, the steel was bundled to allow passage of pencil vibraters 'into all areas of the' placement sto ensure thorough consolidation g
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of!tpecbacrete. The Assessment Temn' concluded that the Contractors'
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'activiti'es' for concrete placement, especially in areas where the reinforcing d4-still is. heavily congested were acceptable.
- s t As essme'nt Team Observations - QA/QC 1
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J3he' kceessment Team reviewed the,FSO report sun $arizing the results of the 3
self audit: conducted at their controlled drawing station and at various s
' N,% of 2/150 were reviewed for correct revision number, proper posting of atta O
workprlht< stations. Five hundred and twenty one documents out of a total s
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f rnents, legibility and proper identification stamps.
The report indicated O Q M that missing attachments to drawings continues to be a_ problem but that the V O fortputerized register.was accurate. Actidas!being taksa to address the J T*? ;
identified problem include the addition of clerical staff to maintain
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' i.the' documents and the reduction in the backlog and cycle > time for distribution of ' documents.
- The Assessment Team believes these actions to be appropriate in addressing the problems noted Muring the self-audit. The Assessment Team y
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expects the results' of the next self-audit, scheduled for mid-June, to show M>
fewer attachment-related proble.ms.
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% A Ihe Assessment Tedm reviewed a group of NCRs and 10 QARs that were recently In general, the descriptions contained on these MPQAD forms
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' dispositioned.,I;oncise.
were clear and The nonconforming conditions were detailed, including occasional sketches, 'n ad the'resulting dispositions were complete in terms of addressing the specific nonconfonrance plus any document changes that may x 1 / have been required.
In the opinion of the Assessment Team, one of these NCRs
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4 J.O. No. 14358 Midland Plant i
Units 1 & 2 Independent Assessment of Underpinning Work Activity Packages
'Ihe following Work Activity Packages (WAPs) overviews are in the open response stage or have been completed during the past week.
WAP No.
Title Status (Opened) (Closed) 86 Support Brackets 5/18/84 5/31/84 for Kc5.89, Kc6 and Kc7 Turbine Building Nonconformance Identification Reports The following Nonconformance Reports (NIRs) remain open or have been closed during the week.
NIR No.
Description Status (0pened)(Closed) 26 Closure of 5/25/84 Procedural Deficiencies Open Items Items discussed during meetings are categorized as follows:
OPEN ITEM - An item for which an action is required. The item will remain open until the required action has been taken. Tracking is required.
CLOSED ITEM - 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 t..acking is required.
OPINION ITEM - 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 alternate that may facilitate an operation.
CLOSES ITEM -XX-XX - This notation identifies an action that closes a previously identified open item. Tracking of the open item stops.
The following listing of all Open item from the Daily 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 64-10 Trend Analysis 89-27 71-17 Computerized Civil open Drawing Register
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74-21 US Testing Corrective open Action
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' J.O. No. 14358 Midlcnd Plant Units l'& 2
- Independent Assessment of Underpinning Item No.
Description Closure 82 Trend Analysis 89-27 86-16 Vibration of BWST 89-15 Concrete 87-5 Implementation of 89-11 the QAP Task Force Reconstendations 88-24 FSO Quality Engineering 89-26 Group Controlled Document Audit 88-25' Documentation of Open Buttress Access Shaft Spall Repair 88-26 NCR Disposition of 89-12 a Concrete Air Entrainment Deficiency 89-7 level C Wale Open Bearing Plate Gap 89 Access Shaft Open Soldier Piles 89-23 Incorporation of open "One Time Deviation"-FCRs sN lh.6-h&v
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.Not:s of-Daily. Meeting
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',Independ at Assessroent of Underpinning.
Midland-Plant, Units'1 &.2 lConsuiners Power Cottpany
' Held'at Midland Site Midland,. Michigan r.
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. my 28, 1984-No tr.ceting was held on this date.
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Notss"or' Daily Meeting Independent Assessment of Underpinning
' Midland Plant, Units-1 & 2 Consumers Power Company
~ Held at Midland Site Midland, Michigan May 29, 1984 Present For:
~ Consumers Power Bechtel MPQAD Stone & Webster
- R.
.Wieland J.
Fisher J.
McMaster P.
Majeski J.
Kelleher R.
Sevo D.
Benvie E.
Cvikl 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 89-1-'-
Auxiliary Building Underpinning Activities.
Concrete placement was completed for the CT 3/10 pier bells.
Installation of the bearing plates is in process for the ' jack locations at the E/W5 grillages.
Load lock off has been completed for the middle portion of the enlarged E17 pier.
Routine rejacking is in progress.
iShaft excavation-for pier Kc8 has proceeded to the top of the bell.
-Excavation in the east and west access shafts continued.-
(INFORMATION ITEM)
Item 89 SWPS Underpinning Activities.
-J.. Fisher reported that excavation of the east access shaft has resumed.
Excavation work had been halted while areas behind the lagging which had been washed out during last week'sheavy rainfall were repaired.
(INFORMATION ITEM)
Item 89 Vibration of BWST. Concrete.
LJ. ' Kelleher reported that a pea gravel concrete mix will not be used for
.the BWST ring beam addition. Previously it was reported that a pea gravel would be used.to ensure full penetration of concrete into access of high reinforcing steel congestion.
It is still planned to bundle rebar and use pencilJvibrators to ensure proper vibration of concrete in congested areas.
(Item 86-16 remains OPEN) (INFORMATION ITEM)
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'Notb3 of Daily Meeting'
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-Independent-Assessment'of Underpinning a
Midland Plant', Units 1 & 2 Consumers Power Company Held at Midland Site'
' Midland, FEchigan May 29,- 1984 Item 89 Trend Analysis.
J.
McMaster stated that the first monthly report summarizing the results
'of the MPQAD tracking activity of Remedial Soils related NCRs will be issued this week. This tracking activity is being performed to compliment the M-2 manual trending which is ongoing.
(Item 64-10 and 82-9 remain OPEN) (INFORMATION ITEM) '.
New. Items Item 89 SWPS Instrumentation Readings.
E.
Cviki reported that 'one of the electrical extensometers in the SWPS had shown an alert level reading over the weekend. A subsequent check of the mechanical dial gage on the extensometer did not indicate that the alert level had been reached.
It is belies " that water drainage from a pipe above the extensometer may have affected t electrical instrumentation reading. Resident Engineering is presently investi ating the cause of the alert level reading.
m (INDORMATION ITEM)
Item 89 MPQAD Trend Reports.
D.
Zito requested that MPQAD provide copies of the M-2 manual trending recorts for February 1984 through April 1984.
J.
McMaster will respond.
(OPEN ITEM)
Item 89-7 '-- Level C Wale Bearing Plate Gap.
P.
Majeski stated that he observed a small gap along the edge of the Level C wale bearing plate adjacent to the spalled concrete on the West Buttress Access Shaft wall. Mr. Majeski requested that FSO or Engineering determine if the gap 'is related either to scalling or the result of movement.. E.
Cvikl will respond..(OPEN ITEM)
Item 89 Hold Tags for Ibbular Steel Lagging.
'P.
Majeski noted that a Hold Tag describing welding deficiencies associated with a tubular steel. lagging piece had been removed and reattached to a piece of wood lagging. It was noted that recent correspondence from Bechtel requested the Underpinning Subcontractor to reinstruct it's employees as to the requirements of tne NCR Hold Tag system.
Mr. Majeski asked if this retraining has been completed.
J.
Fisher will respond.
(OPEN ITEM)
Item 89 Service W ter Line Backfill.
a J. J011veira stated that during inspection of the backpacking behind the soldier pile wall along the north side of the SWPS a zone of loose backfill was found beneath the west 36 in. diameter service water line of Train A.
Mr. Oliveira asked what will be done to correct this situation.
J.
Fisher will respond.
(OPEN ITEM)
1Notcs of Daily-Meeting
'Ind pend;nt Ass:ssment of Und:rpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site
. Midland., Michigan May 29, 1984' Item 89 Auxiliary Building Access Shaft Soldier Piles.
J. ~ Fisher reported that two soldier piles in each access shaft were not installed to their full design length. The soldier piles which were supposed to have been seated onto the east and west buttress access shaft footings were installed approximately 4 in, and 24 in.
too short, respectively. Engineering is presently evaluating corrective action. The Assessment Team requested that Engineering crovide details of their evaluation once it is completed.
E.
Cviki will respond.
(OPEN ITEM)
Response Items Item 89 Irtplementation of the QAP Task Force Recommendations.
CP Co addressed the Assessment Team question concerning implettentation of the QAP Task Force recerr2tendations. he reconstendations which include revisions to selected PQCIs, construction procedures and specifications to facilitate construction and inspection of various processes have been accepted by CP Co. Additionally CP Co agrees with the guidelines recon 2 tended by the task force for developing new PQCIs, construction procedures and specifications or reaking rcajor revisions to existing procedures. CP Co has ~ directed the Contractor to irtplettent these guidelines.
(CLOSES ITEM 87-5)
Item 89 NCR Disposition for Concrete Air Entrainrtent Deficiency.
he Assessment Team has reviewed the MPQAD response addressing impletten-tation of corrective action to ensure future concrete air entrainrtent testing is perfortted properly. MPQAD stated.that the individual who was responsible for the improper concrete testing'has been Icade aware of procedural requirertents and no further corrective action is required.
A review of additional NCRs by the Assessitent Teart found one other incident where a procedural deficiency associated with exceeding the tirte limit for perfortcance of concrete aggregate testing was noted.
R e NCR response addressed the hardware issue associated with the testing.
but did not adequately address the procedural deficiency. The Assessment
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Teambelieves that the procedural deficiencies identified in these two NCRs should be addressed to ensure future concrete testing is properly perforrted. As a result NIR # 26 was issued on 5/25/84 (NIR # 26 is OPEN) (CLOSES ITEM 88-26) r t
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- d Notcs of Daily Meeting Ind p ndent Assessment of Und:rpinning Midland Plant, Units 1 & 2 Consumers Power Company i
. Held at Midland Site I
Midland, Michigan May 30, 1984 Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray-J.
Fisher J.
McMaster D.
Benvie E.
Cviki R.
Sevo W.
Kilker D.
Zito Parsons Brinckerhoff B.
Metros i
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 89 Auxiliary Building Underpinning Activities.
Placing and alignment of grillage beams for the E/W5 piers is in progress.
Placement of the Kc5 upper leveling plate grout was completed.
j Placement of the concrete mudmat for the Kc8 pier shaft was completed.
(INFORMATION ITEM)
Item 89 Trend Analysis.
J.
McMaster provided the Assessment Team with a copy of the first monthly report sunnarizing the results of the MPQAD tracking activity of Remedial
' Soils related NCRs.
(Item 64-10 and 82-9 remains OPEN)
L New Items No new items were discussed.
Response Items Item 89 Vibration of BWST Concrete.
The Assessment Team observed placement of concrete for the Unit 2 BWST
. ring beam addition in an area of high reinforcing steel congestion. To address the Assessment Team's concern with proper concrete vibration in heavily congested areas, the Contractor bundled the reinforcing steel and used pencil vibrators to allow access into all areas of the placement.
The Assessment Team believes implementation of these modifications was effective in ensuring proper vibration of concrete.throughout the placement area. (CLOSES ITEM 86-16) i L. _
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Notcs of Caily Meeting i
' Independent Assessment of Underpinning Midland Plant, ' Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan May_30, 1984 Item 89 MPQAD Trend Reports.
J.
McMaster provided the Assessment Team with copies of the MPOAD manual trending reports for February.1984 through April 1984. (CLOSES ITEM 89-6)
Item 89-17 Hold Tag Repositioning.
J.
Fisher and J.
NbMaster responded to the Assessment Team question on the repositioning of a Holo Tag for steel lagging to be used in the Auxiliary Building underpinning. The tag had not been intentionally
. moved but had fallen from the lagging and then re-attached by QC personnel. FSO has.nevertheless, reinstructed field personnel as to the requirements of the NCR Hold Tag system.
(CLOSES ITEM 89-8)
Item 89 Service Water Line Backfill.
J. - ' Fisher responded to the Assessment Team concern of loose backfill beneath the west Train A service water line. After investigation, ESO
-_ concurs that the material that extends well beyond the backpacking zone is loose. However, no immediate remedial action is required since.in the
-course of the planned Phase II constimetion this pipe will be rebedded within the next few months. -(CLOSES ITEM 89-9)
L-
o' Notes of Daily. Meeting f
Independent Assessment of Underpinning Midland Plant, Units 1 & 2' Consisters Power Company Held at Midland Site
. Midland,. Michigan May 31,~1984 Present For:
Consumers Power Bechtel MPQAD Stone & Webster G.
Murray J.
Fisher J.
McMaster
.W.
Kilker J.
Kelleher R.
Sevo
'D.
Benvie J.
Darby D.
Zito Parsons P.inderhoff None PURPOSE
'This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1~& 2.
DISCUSSION S_tatus Items Item 89-19.-
Auxiliary Building ~ Underpinning Activities.
Installation of reinforcing steel in the CT 3/10 pier shafts is in progress.
Installation of jacks and jackstand for pier Kc5 is in progress.
7 Widening of the E17. drift to. enlarge the shaft for the E17 pier is scheduled
.to begin_today.
-(INFORMATION ITEM)
Itert 89 US Testing Corrective Action.
W.
Kilker requested the status for final issuance of the US Testing Quality Control Procedures (QCPs) with the attached work instructions.
J.
Fisher stated that the QCPs have been approved as noted. US Testing is presently incorporating contents and will resubreit the QCPs for final approval in
-the near future.
(Item 74-21 remains OPEN)
(INFORMATION ITEM)
New Iterns -
Item 89-21 SWPS Drawings.
D.
Zito discussed his review of two recently revised SWPS drawings.
It was noted that the two drawings which pertain to installation of the place load test assernbly for pier No.' 1 were rearked up with a large nurnber of car 2 tents.
One drawing contained 84 corr 2 rents while 67 contents were identified on the other drawing. Mr. Zito stated that these drawings were quite difficult to use because of the nurtber of corr 2 tents.
(OPINION ITEM)
L
Notes of Daily Meeting
~
7 Independent Assessment of Underpinning ~
Midland Plant, Units;1 & 2
~
Consumers Power Company
' Held at Midland Site
' Midland, Michigan May 31,' 1984
- Item 89 SWPS Phase II B Cofferdam.
D.
Benvie asked if the cantilevered soldier pile wall concept is still being considered for construction of the SWPS Phase II B Cofferdam.
J.
Fisher
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stated that the original concept consisting of a braced soldier pile wall cofferdam will be implemented. The braced concept will be used because the bracing is needed to support utilities in addition to providing lateral support for the cofferdam.
(CLOSED ITEM)
Item 89-23'- NCR for SWPS Backpacking Erosion.
L.
Rouen discussed an NCR written due to erosion of the SWPS backpacking
.during last week's heavy rainfall. 'Ihe NCR disposition stated that all eroded areas behind the soldier pile wall would be backfilled as directed by the Resident Geotechnical Engineer. Additionally, the NCR stated a sand-bag berm and sumps had been installed around the perimeter of the east and west access shafts to prevent future washouts. Mr.
Rouen noted that all the berm and sumps had not yet been installed and asked why the NCR was closed out.
J.
Fisher responded that the disposition wording should have stated that the sandbag bent and sumps will.be installed as part of the corrective action.
It was noted that the filling of the eroded areas, which is Q related, had been
-completed prior to NCR closure. The earth berm and sump system are not consid-ered Q related work.
(CLOSED ITEM)
Item 89 SWPS Instrumentation Reading.
.J.
Darby stated that Resident Engineering completed their investigation of the cause for the alert level readings at one of the'SWPS extensometers earlier this week. It was determined that the extensometer has malfunctioned because of water drainage onto the instrument from a pipe above.
(INFORMATION ITEM)
Item 89 Assessment Team Constents on a Recent QAR.
L. f Rouen suracarized the Assessment Team observations on a QAR issued by MPQAD '
subsequent to the May 23 erosion of soil behind portions of the SWPS access area lagging. The QAR noted-that the Subcontractor's procedure does not adequately address means to control " groundwater / rainwater runoff" into the excavation. In reply, FSO offered a lengthy technical definition of ground-water in defense'of the content of the existing procedure. The Assessment Team believes that MPQAD could have used an alternate means of requesting a clarification on this issue such as, a Request for Infonration. In addition, the Team feels that the FSO response was written primarily to refute the QAR. As
-a more positive approach FSO could have emphasized the actual measures being taken to guard against fbture potential erosion.
(OPINION ITEM)
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- Notes of Daily Meeting Independent Assessment of Und:rpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midlaad, Michigan May 31, 1984 Response Items Item 89 FSO Quality Engineering Group Controlled Document Audit.
J.
Fisher responded to the Assessment Team question concerning replacement of illegible and/or torn drawings at workprint stations.
Field engineers
'have been directed by memo to ensure that during their daily review of new documents posted at a particular workerint station, they also identify and reclace any. torn or illegible' drawings with copies.
(CLOSES ITEM 88-24)
Item 89 Trend Analysis.
W.
Kilker' stated.that the Assessment Team has reviewed the MPQAD Soils NCR Tracking Report issued for the month of April. 'Ihis Tracking Report contains a sunxary of the number of Inspection Reports (irs). the number of inspection sign-offs, the number of attributes inspected and the number of NCRs and non-conforming items.
In addition, there is a narrative on any major areas of NCRs
'and plots relating non-conformir6 items in several different areas of the number of inspection sign-offs. The Team believes this monthly report combined with the standard monthly M-2 trending recort and the monthly FSO trending report adequately address the item raised on-NCR trending in the Assessment Team report of October 1983 entitled " Evaluation of Change and Nonconformance Documents."
(CLOSES ITEM 64-10 and 82-9)
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' Notes of Daily Meeting Independent Assessroent of Underpinning j
Midland Plant,' Units 1 & 2 Consumers Power Company i
Held at Midland Site Midland, Michigan June 1, 1984 Present For:
' Consumers Power Bechtel MPQAD Stone & Webster G.
Murray-J.
Fisher J.
McMaster W.
Kilker E.
Cviki R.
Sevo D.
Benvie J.
Kelleher D.
Zito L.
Rouen Parsons Brinckerhoff 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 Item 89-2C - Auxiliary Building Underpinning Activities.
B e first lift of concrete for the CT 3/10 pier shafts is scheduled for i
6/3/84.
j Excavation of the Kc8 pier bell was completed. Placement of the bell concrete mudmat is scheduled for today.
(INFORMATION ITEM)
Item 89 SWPS Underpinning Activities.
J.
Fisher reported that excavation of the SWPS east access shaft is aln:ost complete. Installation of the lower bracing system is scheduled i
to begin in the near future.
(INFORMATION ITEM)
Item 89 SWPS Drawings'.
J.
Fisher discussed the two SWPS drawings which have been marked up with
.a large number of corrments.
W e Assessment Team had previously expressed concern that these drawings were difficult to use because of the large number of cornr.ents. Mr. Fisher stated that these two drawings will be revised this weekend to incorporate all of the corrxents on the drawings and then reissued for erection.
(INFORMATION ITEM)
New Items Item 89 Weekly Report # 89.
W e text of weekly report # 86 was reviewed. It was noted in the report that the revised methodology for incorporation of "one time deviations" FCRs has not been finalized. We Contractor had previously reported that x
Notes of Daily Meeting
' Independent Assessitent of Underpinning Midland Plant,. Units 1 & 2 Consumers Power Cottpany Held at Midland Site
' Midland, Michigan
-June'1, 1984 "one tirre deviations" FCRs will either be incorporated onto the applicable
- drawing directly or referenced on the drawing with a brief description of the:FCR. The Assessrcent Team will-verify ireplementation of an incorporation rtethodology for "one titte deviations" FCRs.- (OPEN ITEM)
Response Itetts No response iterns were discussed.
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