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Category:GENERAL EXTERNAL TECHNICAL REPORTS
MONTHYEARML20203N4171986-04-30030 April 1986 Rev 2 to Tdi Owners Group App Ii:Generic Maint Matrix & Justifications ML20100B6361985-01-21021 January 1985 Rept on Welding Allegations ML20091K9701984-05-25025 May 1984 Request for Exemption from Branch Technical Position BTP-CMEB 9.5-1 for Control Panels C43 & C44 ML20084M0241984-04-27027 April 1984 Const Implementation Overview,Weekly Rept 46,840423-27 ML20084L9381984-04-19019 April 1984 Main Control Room Fire Analysis & Evaluation for C31 Control Panel ML20083P8971984-04-17017 April 1984 Midland Independent Design Const Verification Program Monthly Status Rept,Number 11 for Mar 1984 ML20087H9031984-03-16016 March 1984 Midland Independent Design & Const Verification Program Monthly Status Rept Number 10 for Feb 1984 ML20081C3731984-02-29029 February 1984 Seismic Margin Review,Miscellaneous Subsystems & Components ML20084F9061984-02-24024 February 1984 Const Implementation Overview,Weekly Rept Number 37, for 840220-24 ML20084F9261984-02-17017 February 1984 Const Implementation Overview,Weekly Rept Number 36, for 840210-17 ML20080M7381984-02-15015 February 1984 Independent Design & Const Verification Program Monthly Status Rept 9 for Jan 1984 ML20084F8941984-02-10010 February 1984 Const Implementation Overview,Weekly Rept Number 35, for 840206-10 ML20086M2541984-02-0909 February 1984 Balance-Of-Plant Class 1,2 & 3 Piping,Pipe Supports & Valves, Vol IX to Seismic Margin Review ML20084F8391984-02-0303 February 1984 Const Implementation Overview,Weekly Rept Number 34, for 840130-0203 ML20083G8741984-01-0404 January 1984 Structural Evaluation of Midland Diesel Generator Bldg: Assessment of Structural Performance Capability & Serviceability as Potentially Affected by Settlement Induced Cracking ML20083G5871984-01-0404 January 1984 Midland Independent Design & Const Verification Program: Structural Evaluation of Diesel Generator Bldg ML20079E6641983-12-31031 December 1983 Midland Independent Design & Const Verification Program, Monthly Status Rept 8 for Dec 1983 ML20083D9831983-12-0909 December 1983 Auxiliary Bldg Crack Mapping Evaluations for Grillage 8 Initial Jacking & Rejacking ML20083C6631983-11-30030 November 1983 Midland Independent Design & Const Verification (Idcv) Program, Monthly Status Rept 7 for Nov 1983 ML20081J2801983-10-31031 October 1983 Evaluation of Change & Nonconformance Documents,Independent Assessment of Underpinning ML20082A9691983-10-31031 October 1983 Midland Independent Design & Const Verification Program, Monthly Status Rept 6 for Oct 1983 ML20085L1141983-10-17017 October 1983 Fifth Monthly Status Rept for Independent Design & Const Verification Program for Sept 1983 ML20082G4971983-09-20020 September 1983 Midland Summary Rept ML20080E7881983-08-31031 August 1983 Vol IV to Seismic Margin Review:Svc Water Pump Structure Margin Evaluation ML20076C1621983-08-16016 August 1983 Midland Independent Design & Const Verification Program, Monthly Status Rept 3 for Jul 1983 ML20077A7081983-07-31031 July 1983 Rev 3 to NSSS Equipment & Piping, Vol Viii to Seismic Margin Review ML20077H9721983-07-25025 July 1983 Rev 3 to Diesel Generator Bldg, Vol V to Seismic Margin Review ML20076N2391983-07-15015 July 1983 Midland Independent Design & Const Verification Program, Monthly Status Rept 2 for 830528-830630 ML20024D0181983-06-30030 June 1983 Midland Independent Design & Const Verification Program Monthly Status Rept 2, Second Monthly Status Rept for 830528-0630 ML20085D8091983-06-30030 June 1983 Seismic Margin Review,Vol Iii,Auxiliary Bldg ML20072H4981983-06-30030 June 1983 Reclassification of Flued Head Fittings at Midland Plant Units 1 & 2 ML20076G0631983-06-0202 June 1983 Rev 2 to Midland Energy Ctr Spatial Sys Interaction Program/Seismic Mgjec Project Quality Plan ML20071M3581983-05-27027 May 1983 Midland Independent Design & Const Verification Program Monthly Status Rept 1, Covering Period from Project Inception Through 830527 ML20072E5851983-05-27027 May 1983 Independent Design & Const Verification Program,Monthly Status Rept No 1,Period Inception Through 830527 ML20072M2281983-05-18018 May 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 34, for 830508-14 ML20072M2121983-05-10010 May 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 33, for 830501-07 ML20072M2051983-05-0505 May 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 32, for 830424-30 ML20076N2791983-04-30030 April 1983 Revised Visual Insp of Cracks in Containments Near Anchorages in Rooms 110 & 116 ML20023C6841983-04-30030 April 1983 Vol 5 of Seismic Margin Review:Diesel Generator Bldg. ML20023B9021983-04-29029 April 1983 Addendum to 41st ALAB-106 Quarterly Rept,Apr-June 1983. ML20072M1891983-04-27027 April 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 31, for 830417-23 ML20072M1771983-04-21021 April 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 30, for 830410-16 ML20072M1691983-04-15015 April 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 29, for 830403-09 ML20072M1521983-04-0707 April 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 28, for 830327-0402 ML20083D3531983-04-0101 April 1983 Proposal for Third-Party Const Implementation Overview, Midland Nuclear Cogeneration Plant ML20072M1461983-04-0101 April 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 27, for 830320-26 ML20073D6441983-03-31031 March 1983 Control Room Design Review Final Rept ML20073B9291983-03-31031 March 1983 Quarterly Rept, for Apr-June 1983 ML20073C6111983-03-31031 March 1983 Seismic Margin Review,Midland Energy Ctr Project,Vol II: Reactor Containment Bldg ML20072M1341983-03-23023 March 1983 Independent Assessment of Auxiliary Bldg Underpinning Weekly Rept 26, for 830313-19 1986-04-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20058L8721992-12-31031 December 1992 1992 Annual Rept,Cpc ML20126D7211992-12-16016 December 1992 Potential Part 21 Rept Re Actual Performance of Rosemount Supplied Bailey Bq Differential Pressure Transmitters Differing from Rosemount Original Spec.Bailey Controls Encl.Evaluation Not Yet Performed ML20246N1221988-12-31031 December 1988 CMS Energy 1988 Annual Rept ML20154J4101988-05-12012 May 1988 Addendum 1 to Supplemental Part 21 Rept 145 Re Potential Problem w/F-573-156 Pressure Sensor/Lube Oil Trip.Initially Reported on 880429.Addl 1-1/8-inch Diameter W/Deep Counterbone in Pressure Head Added to Activate Valve ML20153B6191988-04-29029 April 1988 Part 21 Rept Re Potential Defect in Component of Dsr or Dsrv Standby Diesel Generators Supplied to Utils.Recommends Return of Subj Components in Onsite Warehouse Storage & Suggests Surveillance of Devices Already Installed ML20196J3801987-12-31031 December 1987 CMS Energy Corp 1987 Annual Rept ML20215G2441987-06-16016 June 1987 Part 21 Rept Re Failure of Load Sequencing Equipment Supplied in Aug 1977 During Scheduled Testing.Caused by Open Electrical Connection on One Crimp Lug.Since 1978,insulated Lugs Used on All Equipment ML20216E4721987-05-28028 May 1987 Part 21 Rept 140 Re Potential Defect in Air Pressure Regulators Mfg by Bellofram.Dripwell Gasket May Fail Due to Mismachining of Gasket Seating Surface Causing Loss of Control Air & Starting Air Pressure ML20207R9041986-12-31031 December 1986 CPC 1986 Annual Rept ML20214A0951986-11-14014 November 1986 Insp & Evaluation Re Adequacy of Stabilization Plan,In Response to Util 860701 Request for Withdrawal of Applications to Extend CP & Util Motions Seeking Withdrawal of OL Application ML20215G6801986-10-10010 October 1986 Part 21 Rept Re Vendor Tests of air-operated Diaphragm Valves Revealing Natural Frequencies Less than Required Values of 33 Hz.Initially Reported on 841227.No Adverse Effects Noted During Testing ML20215G5351986-10-10010 October 1986 Part 21 Rept Re Vendor Tests of air-operated Diaphragm Valves Revealing Natural Frequencies Less than Required Values of 33 Hz.Initially Reported on 841227.No Adverse Effects Noted During Testing ML20205F6141986-08-13013 August 1986 Part 21 Rept Re Connecting Rod Bolts for Dsrv Engines.Listed Procedures Recommended for Next Connecting Rod Insp, Including Replacement of Bolts Due to Cracked Threads & Large Grooves & Galls in Threads ML20206U0591986-07-0202 July 1986 Part 21 Rept Re Potential Defect in Component of Dsrv Standby Diesel Generators,Involving Problem W/Fastening of Engine Connecting Rod Assembly Which Could Result in Engine Nonavailability.Procedure Will Be Issued by 860718 ML20197H2581986-05-0808 May 1986 Part 21 Rept 135 Re Defect W/Lube Oil Sump Tank Foot Valve of Standby Diesel Generator.Caused by Extrusion of Liner Matl Due to Overpressurization.Corrective Actions Being Developed.List of Affected Sites Modified ML20203N4171986-04-30030 April 1986 Rev 2 to Tdi Owners Group App Ii:Generic Maint Matrix & Justifications ML20205N6811986-04-14014 April 1986 Final Part 21 & Deficiency Rept 86-03 Re Consolidated Pipe & Valve Supply,Inc Certified Matl Test Repts.Initially Reported on 860321.Six raised-face Orifice Flanges Statused & Segregated Per QA Procedures ML20205N7381986-04-14014 April 1986 Interim Deficiency & Part 21 Rept 86-02 1 Re Elastomer Liner in Clear Flow Co Foot Valves Used in Lube Oil Sump Tanks of Tdi Diesel Generators.Initially Reported on 860321. Action Will Not Be Pursued Unless Facility Reactivated ML20140H5991986-03-24024 March 1986 Second Interim Deficiency Rept 86-01 Re Error in Bechtel Computer Analysis Program.Initially Reported on 860121.No Corrective Actions Will Be Pursued & No Further Repts Will Be Submitted Unless Project Reactivated ML20154N3431986-03-10010 March 1986 Initial Part 21 Rept 135 Re Potential Problem W/Lube Oil Sump Tank Foot Valve of Dsrv Standby Diesel Generator for Facilities.Cause Not Determined.Recommends Utils Inspect Condition of Foot Valve Liners & Notify Tdi of Findings ML20153F5391986-02-14014 February 1986 Interim Part 21 & Deficiency Rept Re Error in Bechtel Computer Analysis Program ME101.Initially Reported on 860121.No Corrective Actions or Further Repts Will Be Submitted Until Project Reactivated ML20137N6101986-01-10010 January 1986 Interim Part 21 & Deficiency Rept 85-08 Re Isolated Failures of Betts Spring Co Intake & Exhaust Valve Springs Reported by Tdi.Initially Reported on 851218.Corrective Actions Will Be Pursued If Units Reactivated ML20141N8361985-12-31031 December 1985 CPC 1985 Annual Rept ML20138M3891985-12-12012 December 1985 Topical Rept Evaluation of Rev 1 to BAW-1847, Leak Before Break Evaluation of Margins Against Full Break for Rcs.... Rept Presents Acceptable Justification to Eliminate Dynamic Effects of Large Ruptures in Piping ML20198C4981985-11-0606 November 1985 Part 21 Rept Re Potential Defect in Dsr or Dsrv Standby Diesel Generator Intake & Exhaust Valve Springs Mfg by Betts Spring Co.Users Recommended to Inspect Engines for Broken Springs & Identify Original Mfg ML20138B9531985-10-0909 October 1985 Interim Deficiency Rept Re Larger than Anticipated Util Movement Where Freezewall Crossed safety-related Utils at Monitoring Pits 1,2,3 & 4.Initially Reported on 850917.No Action Will Be Taken ML20138C3111985-10-0808 October 1985 Interim Deficiency Rept Re Limitorque motor-operated Butterfly Valves Not Opening Electrically After Closed Manually.Initially Reported on 850912.No Corrective Actions Will Be Taken Unless Facility Reactivated ML20138C3251985-10-0808 October 1985 Interim Deficiency Rept Re Loose Set Screws on Anchor Darling Swing Check Valves & Disc Nut Pin Problems Causing Inoperability.Initially Reported on 850912.No Further Corrective Action Will Be Taken Unless Facility Reactivated ML20132B0261985-09-0303 September 1985 Part 21 Rept Re Possibility of Engine Ingestion of Unwelded Part in American Air Filter Standby Diesel Generator Intake Silencer.Immediate Hold Should Be Placed on Diesel Engines/Intake Silencers Not Yet in Svc ML20132D3191985-07-10010 July 1985 Interim Part 21 & Deficiency Rept Re Rupture During Testing by Wj Woolley Co of Inflatable Seal,Mfg by Presray Corp,Used in Personnel Air Locks in Reactor Containment Sys.Initially Reported on 850614 ML20129G0601985-04-26026 April 1985 Interim Deficiency Rept Re Potential for Cracking of Check Valves in on-engine Mounted Starting Air Piping of Tdi Diesel Generators.Initially Reported on 850401.Cause Not Determined.No Corrective Actions.Related Correspondence ML20112J3951985-03-22022 March 1985 Interim Part 21 & Deficiency Rept Re Failure of Gulf & Western MSIV Actuator Latch Roller Bearing.Matter Will Not Be Pursued Unless Plants Reactivated ML20100B6361985-01-21021 January 1985 Rept on Welding Allegations ML20114D3571984-12-21021 December 1984 Interim Deficiency Rept Re Diesel Fuel Oil Tank Soils Borings.Initially Reported on 841121.No Corrective Actions Necessary Due to Present Project Shutdown ML20100K9791984-11-27027 November 1984 Part 21 & Interim Deficiency Rept Re Ruskin Mfg Co Interlocking Blade Fire Dampers.Initially Reported on 841121.Corrective Action Will Not Be Pursued & No Further Repts Will Be Made Unless Plant Reactivated ML20100D9841984-11-21021 November 1984 Deficiency Rept Re Diesel Fuel Oil Tank Boring Logs.Util Response to Dow Chemical Co 841113 Request for Admissions Encl ML20100E4451984-11-15015 November 1984 Interim Deficiency Rept Re Cardinal Industrial Products Corp Spare Studs Received W/O Ultrasonic Exam.Initially Reported on 841010.Corrective Actions Will Not Be Pursued Unless Midland Reactivated ML20100E2621984-11-15015 November 1984 Interim Part 21 & Deficiency Rept Re Rosemount 1153 Series B Transmitters Potentially Leaking.Initially Reported on 841010.Four Units Shipped to Facilities.Corrective Actions Will Not Be Pursued ML20100E2371984-11-15015 November 1984 Interim Part 21 & Deficiency Rept Re Tdi Fuel Control Level Cap Screws.Initially Reported on 841010.No Corrective Actions Will Be Pursued & No Further Repts on Subj Made Unless Midland Reactivated ML20099E3531984-11-0909 November 1984 Interim Deficiency Rept Re Small Bore Piping Anchor Design. Initially Reported on 840816.Listed Corrective Actions Will Not Be Pursued & No Further Repts Will Be Made Unless Facilities Reactivated ML20093C3211984-10-0101 October 1984 Rev 0 to QA Program Plan for Shutdown Phase ML20093H3961984-08-0202 August 1984 Interim Deficiency Rept Re Seismic Qualification of Power Supplies for Eccas & Ni/Rps Equipment.Initially Reported on 840705.No Activity Being Currently Pursued.No Further Repts Will Be Made Unless Facilities Reactivated ML20093H8521984-08-0202 August 1984 Interim Deficiency Rept Re Field Installation of Itt Grinnell Struts & Extension Pieces.Initially Reported on 840705.No Activity Being Currently Pursued.No Further Repts Will Be Made Unless Facilities Reactivated ML20096A7781984-07-27027 July 1984 Final Deficiency Rept Re Defective Capstan Springs in Pacific Scientific Mechanical Shock Arrestors.Initially Reported on 840106.W/o Description of Investigation & Corrective Actions.Related Correspondence ML20093H8111984-07-27027 July 1984 Final Part 21 & Deficiency Rept Re Capstan Springs in Mechanical Shock Arrestors Supplied by Pacific Scientific. All Suspect Shock Arrestor Capstan Springs Will Be Inspected for Cracks & Defective Springs Replaced ML20093H8871984-07-20020 July 1984 Interim Deficiency Rept Re Reactor Coolant Pump Seals & Seal Covers.Initially Reported on 840622.No Activity Currently Being Pursued.No Further Repts Will Be Made Unless Facilities Reactivated ML20090G2141984-07-18018 July 1984 Idcvp:Control Room HVAC Sys Performance Requirements, Draft Topical Rept ML20093H4751984-07-17017 July 1984 Interim Deficiency Rept Re Core Flood Line Piping Supports in Reactor Pressure Vessel Connection Supplied by Bechtel. Overstressing Could Occur in Pipe Supports.No Commitment Made for Further Repts ML20096A2951984-07-11011 July 1984 Final Deficiency Rept Re Concrete Embedment Design Using Shear Lugs Located Outside Compression Zone.Initially Reported on 821203.Use of Shear Lugs Outside Compression Zone Is Proper Design Technique.Related Correspondence ML20093G7891984-07-11011 July 1984 Final Deficiency Rept Re Concrete Embedment Design Using Shear Lugs Located Outside Compression Zone.No Corrective Action Required.Not Reportable Under 10CFR50.55(e) 1992-12-31
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. 'J.O. No. 14358
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Auxiliary Building Underpinning Weekly Report No. 28 March 27, 1983 through April 2, 1983 Personnel on Site Stone & Webster Michigan, Inc.
W. Kilker 3/27 - 4/1 P. Barry 3/28 - 3/30 B. Holsinger 3/28 - 3/29 R. Beaudet 3/28 Parsons, Brinckerhoff Michigan, Inc.
J. Ratner 3/30 - 4/2 M. Abrahams 3/30 - 3/31 Meetings Attended Date Represented Purpose 3/27 Stone & Webster Daily Meetings through Bechtel 4/1 Consumers Power Parsons (3/30-4/1)
" 3/30- Stone & Webster Daily Field Meeting Bechtel (West Side)
Consumers Power Mergentime Activities Construction -
Pier W12: The Contractor continued to monitor the pier settlement and check the shims for tightness. Based on the minor additional settlement rejacking was not considered necessary.
Pier W9: Curing of the pier surface was maintained throughout the week. The upper and lower leveling plates and telltale plate were installed. Drypack grout was used for the upper plates and a flowable grout for the bottom plate.
Pier W11: Excavation of the pier was advanced nearly 30 ft. to El. 570 ft. A mixture of granular and clay fill was encountered to El. 585 underlain by the stiff natural clay. Minor perched groundwater entered the excavation through a granular zone at El. 586.
The lagging in the vicinity orcthe perched water level was backpacked with grout.
Below that level a relatively fine grained sand was used to backpack the lagging.
Minor seepage continued to infiltrate the excavation below the sealed zone.
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J.O. NO.
Midltnd Plcnt 14358
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Unito 1 and 2 Independent Assessment Auxiliary Building Underpinning 2 Pier E12: The load transfer was monitored and a rejacking of the pier was performed. The specified load was re-introduced by the jacks and the shims were re-driven to a tight fit.
Pier E9: The upper concrete surface curing was maintained. All of the preparations.
were completed for load transfer including installation of the leveling plates, telltale box and dial gauges, bearing plates and jackstands.
Pier Ell: The excavation was completed to El. 580. Granular and clay fill were excavated to El. 586, the interface with the natural stiff gray clay. There was minor seepage into the excavation at a depth of 13 ft. The lagging was backpacked with fine sand.
Quality Control, Documentation and Records:
- 1. ,Witnessed QC inspection of Hilti bolt torquing.
- 2. Assessed the sampling and making of drypack grout samples.
3 Assessed the welding program implementation.
Observations Construction - The preparatory activities for load transfer on piers E9 and W9 were adequate. The drypack grout was well-mixed and densely packed and curing conditions well maintained. Also, care was taken in properly aligning the leveling b and bearing plates.
On pier E12 the Contractor performed a rejacking to verify the tightness of the shims. The procedure involved applying the specified load to the building through the jacks and then driving the wedges to a tight fit. The Assessment Team feels that in keeping with good underpinning practice the wedges should be driven until 10 to 15 percent of the specified load has been removed from the jacks as indicated by the pressure gauge.
At pier W11 perched groundwater was encountered near the fill-clay interface.
Seepage of this water into the excavation was controlled by grouting the lagging spaces to divert the flow to a collection trough. However, as the excavated / lagging progressed a sufficient quantity of water continued to seep between the lagging to erode some of the fine grained sand backpacking material. The Assessment Team feels the use of fine grained sand for backpacking under these conditions is not consistent with good underpinning practice.
Quality Control Documentation and Records - With reference to the drypack grout samples, the Assessment Team feels that the Contractor and testing agency should verify that the energy input used for making samples is comparable to that used in packing the grout in-place. Comparable energies should be used in order to have test samples respresentative of the installation.
The Assessment of the welding program will appear in Weekly Report No. 29.
Design Work Packages The Assessment Team performed an overview of the design work package for the construction and feels the package for piers E/W8 was complete. The Team feels that the retrival of the bell foot size dimensions from the drawings is difficult and drawing cross-referencing could be improved. In addition, the Team recommended ,
that the as-built pier E/W9 dimensions be checked for impact on the E/W8 pier foot l dimensions.
."J.0, NO. 14358 O
Midlend Plcnt !
, Units 1 and 2 !
Independent Assessment Auxiliary Building Underpinning 3 Non-Conformance Identification Reports ,
Status of previous issues: (NIR numbers on longer listed have been closed-out.) i i
NIR NO. Description Date (0pened) (Closed) 5 Concrete Mix 2/10/83 Qualification 6 Lagging Spacers 3/21/83 a-
. b. L a M u Project Engineer Project Manager
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l DAILY INDEPENDENT ASSESSMENT TEAM MEETING !
l Date: March 28, 1983 Attendees: Bechtel Stone / Webster MPQAD CPCo ,
J. Fisher W. Kilker R. Visser G. Murray R. Weight B. Holsinger G. Cable P. Barry M. Blendy R. Beaudet E. Cviki
- 1. General discussion of concrete placement for pier shafts E/W9 on March 26, 1983 Placement went well. Concrete was kept near the low side of the slump limitations.
- 2. J. Fisher'said load transfer at piers E/W9 could be March 30-"
March 31. -
3 M. Blendy reported the work package for the drift and pier installation for E/W8 is nearly ready for submittal to SMO.
- 4. B. Holsinger questioned why on the bell pour at W9, a slump test at the end of the pumpline was not taken after the previous load of p concrete was rejected for too high a slump based on an end-of-the-line test. MPQAD will respond.
- 5. B. Holsinger questioned the adequacy of the testing procedure on the preparation of dry pack grout samples for testing. Are the field conditions being adequately simulated? MPQAD will respond.
- 6. W. Kilker requested the schedule for work on the SWPS. J. Fisher will provide. J. Fisher said there was a demonstration of the deep probe devic e today.
- 6. R. Beaudet presented a brief synopsis of his assessment of the project welding precedure, the implementation and inspection. W. Kilker stated the assessment summary will appear in Weekly Report No. 27 I
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DAILY INDEPENDENT ASSESSMENT TEAM MEETING Date: March 29, 1983 Attendees: Bechtel Stone / Webster MPQAD CPCo J. Fisher P. Barry R. Visser G. Murray E. Cviki B. Holsinger J. Gaydos W. Kilker
- 1. P. Barry asked if the two NCR's on E/W9 bell concrete placement have been resolved.J. Gaydos said the slump-related NCR was conditionally dispositioned depending upon the cylinder strength test results. The NCR on the vibrator use interruption was dispositioned by FSO.
- 2. W. Kilker requested to meet the Spencer, White, Prentis, Inc. site management personnel. J. Fisher will arrange.
3 P. Barry inquired if there is a minimum 7 day cure period for the piers or if strength considerati'ons dictate the cure period. J. Fisher will resolve.
- 4. J. Gaydos reported that only one set of record concrete gylinders is required.on a given day of concrete placement volumes of less than b 100 cy .
- 5. R. Visser stated that additional end-of-line concrete slump tests were not performed on pier W9 bell after an initial high slump test because the subsequent mix was kept in the mixer for 45 minutes before placement.
- 6. With respect to the dry-pack grout sampling and testing procedure, R. Visser said that MPQAD is satisfied with the procedure. B. Holsinger stated it is important to match the ramming energy inputs for the field installation and the laboratory test samples. The field strength should then be better represented by the lab test results.
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DAILY INDEPENDENT ASSESSMENT TEAM MEETING j Date: March 30, 1983 Attendees: Bechtel Stone / Webster MPQAD CPCo J. Fisher P. Barry R. Sevo G. Murray E. Cviki W. Kilker D. Puhalla J. Gaydos K. Pearson Spencer / White /Prentis H. Armstrong D. Canale J. Cataldo
- 1. J. Fisher reported that a review session with Mergentime on grillage beam installation would be next week.
- 2. J. Fisher inquired if MPQAD felt the 2 NCR's on pier W9 bell concrete placement contained enough information in the description. R. Sevo replied that the NCR description is meant to contain only the cause of the non-con-formance not additional information.
3 Three principals from Spencer, White & Prentis were introduced to Assessment Team members present.
4
- 4. J. Fisher stated load transfer on piers E/W9 is still planned for April 1, 1983
- 5. Discussion of discrepancies noted in quality of dry-pack grout test samples vs. actual field installed dry-pack grout. R. Sevo suggested FSO resolution by tracking through the handling and making of the cubes and compare to field grout placing techniques.
- 6. P. Barry stated he reviewed the E/W8 drift and pier excavation / installation work package. Suggested: (1) An improvement in the dimensioning designation of the bell foot. Retrival of this size is difficult and cross-referer.cing is poor. (2) That piers E/W9 as-built dimensions be evaluted in piers E/W8 review since E/W9 are installed and actual locations are known. J. Fisher will resolve.
- 7. R. Sevo inquired if two adjacent piers are allowed to bond at the bell bottom or if there is a " separation" requirement. E. Cvikl will advise.
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DAILY INDEPENDENT ASSESSMENT TEAM MEETING Date: March 31, 1983 Attendees: Bechtel Stone / Webster MPQAD CPCo J. Fisher W. Kilker R. Sevo G. Murray E. Cviki J. Gaydos K. Hevner G. Cable J. Northrup Parsons J. Ratner M. Abrahams
- 1. J. Ratner introduced M. Abrahams, welding engineer from Parsons, on-site for the day to evaluate welding quality.
- 2. NIR #5 cannot be closed until Project Enginnering responds to MPQAD open issues. E. Cvikl is resolving. W. Kilker said the Team would then review the responses and if satisfactory close-out the NIR.
3 J. Fisher said the April 1 E/W9 load transfer date is tentative. No 5_ additional underpinning work will be performed this week-end.
- 4. K. Hevner reported on the 2 team observations raised during the over-view of the work package for piers E/W8 (see Daily Meeting Notes of March 30).
(1) The concern was well-taken but the drawing complied with Project Engineering standards. W. Kilker responded that the Team felt the initial observation raised was nevertheless valid and would be reported as such. (2) J. Darby of Resident Engineering has taken action on pier E8 since pier E9 bell bottom as built extends approximately 2 inches into the pier E8 " foot-print". Pier W9 bottom as built is within a fraction of an inch plan location and is therefore of no concern.
- 5. J. Ratner raise a concern over the use of the fine sand to backpack in the wet area of pier W11. J. Fisher said coarser backpack material could be employed if the running sand is a problem.
- 6. J. Ratner questioned if the excavation from piers 8 toward the containment will proceed before the schedule for grillage beam delivery is finalized.
J. Fisher replied that the opening of those areas will be tied into the grillage delivery dates.
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DAILY INDEPENDENT ASSESSMENT TEAM MEETING l Date: April 1, 1983 Attendees: Bechtel Stone / Webster MPQAD CPCo J. Fisher W. Kilker R. Sevo G. Murray E. Cviki J. Gaydos Parsons J. Ratner
- 1. G. Murra,y advised that the guideline on the definition of construction aids is under discussion between MPQAD and SMO. Resolution will depend on the outcome of this discussion.
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- 2. E. Cviki reported that Project Engineering has responed to the NCR on concrete mix design. R. Sevo and W. Kilker said their observations will be made on April 4.
3 J. Gaydos said the 10-day strength on the cylinder made from the v "high slump" concrete in pier W9 bell was 5000 psi.
- 4. R. Sevo and G. Murray stated that with regard to Assessment Team NIRs, the response will be generated directly by Consumers or through a Quality Action Request or by an NCR which require disposition.
5 J. Fisher advised load transfer to piers E/W9 is scheduled for April 4.
- 6. J. Gaydos said the field had prepared some dry-pack grout samples to compare to record samples prepared by the testing agency. Concern is that test samples have not been as well compacted or cured as the in-place grout.
7 J. Fisher concurred with J. Ratner's concern over the use of a fine-medium grained sand as backpacking material in locations where seepage may wash-out the material. J. Fisher will resolve.
- 8. W. Kilker inquired of CPCo if the work package for E/W8 has been finalized. G. Murray stated that SMO is waiting until Mergentime issues a schedule on the shop drawing completion.
9 J. Ratner asked if there is a commitment to produce as-built drawings of the underpinning installation and when the effort.will commence.
. J. Fisher will respond.
a a o o STONE & WEBSTER MICHIGAN, INC.
P.O. Box 2325 BOSTON, MASSACHUSETTS O2107 United States Nuclear Regulatory Commission April 7, 1983 Midland Site Resident Inspection Office Route 7 J.O. No. 14358 Midland, MI 48640 Ref. MPF 28 Attention Mr. R. Cook i
RE: DOCKET NO. 50-329/330 MIDLAND PLANT - UNITS 1 and 2
' INDEPENDENT ASSESSMENT OF AUXILIARY BUILDING UNDERPINNING REPORT NO. 28 A copy of the Independent Assessment of the Auxiliary Building Underpinning Weekly Report No. 28 for the period March 27, 1983 through April 2, 1983, 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.
4 Very truly yours, k- "
A. Stanley Lucks Project Manager Enclosures ASL/ka I
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