ML20094K349

Summary of 840304 Meeting W/Util Re Schedules & Topics for Instant Hearing on Soils Matters.Hearing Schedule Resulting in Inefficient Reviews Due to Changing Const Priorities by Applicant

ML20094K349
Person / Time
Site:	Midland
Issue date:	03/11/1982
From:	Hood D Office of Nuclear Reactor Regulation
To:	Tedesco R Office of Nuclear Reactor Regulation
Shared Package
ML19258A087	List: IR 05000329/1978020 IR 05000329/1981012 IR 05000329/1982007 IR 05000329/1982009 IR 05000329/1982014 ML19258A086 ML19351C947 ML20093B251 ML20093B495 ML20093B616 ML20093B708 ML20093B747 ML20093B900 ML20093B940 ML20093C001 ML20093C006 ML20093C017 ML20093C025 ML20093C030 ML20093C035 ML20093C068 ML20093C073 ML20093C079 ML20093C082 ML20093C101 ML20093C104 ML20093C108 ML20093C116 ML20093C174 ML20093C189 ML20093C196 ML20093C226 ML20093C231 ML20093C262 ML20093C318 ML20093C324 ML20093C347 ML20093C354 ML20093C374 ML20093C377 ML20093C390 ML20093C394 ML20093C398 ML20093C405 ML20093C440 ML20093C444 ML20093C649 ML20093M884 ML20093M994 ML20093N005 ... further results
References
CON-BX16-075, CON-BX16-75, FOIA-84-96 NUDOCS 8408150027
Download: ML20094K349 (43)

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i PEMDRANDUM FOR: Robert L. Tedesco, Assistant Director for Licensing Division of Licensing THRU:

Elinor G. Adensas, Chief Licensing Branch #4 Division of Licensing FROM:

Darl Hood, Project Manager Licensing Branch #4 Division of Licensing l l.

SUBJECT:

SUPMULY OF MARCH 4,1982 MEETING ON HEARING SCHEDULES l

The purpose of this memorandum is to illustrate that our current practice of supporting whatever Midland soils hearing schedule the Applicant wants, is resulting in inefficient reviews due to changing construction priorities l

by the Applicant.

BACKGROUND 1

On March 4,1982 the NRC met briefly with Consumers Power Company to discuss schedules and topics for the instant OM, OL hearing on soils matters. As discussed during the February 19, 1982 hearing, the next scheduled hearing was to have been for a two week session beginning March 30, 1982 and was b

to have considered all remalning issues. However, technical meetings during i

February 23-26, 1982 and March 3,1982 have revealed that much information 2~

remains to be provided for staff review and closure on the. issues to the present schedule was considered by the staff to be questionable, at best. Most of the information is scheduled for submittal to the staff after or concurrent i,

with the filing date of proposed testimony (March 16,1982).

t

SUMMARY

Mr. Budzik of Consumers Power Company expressed his belief that four issues would be resolved in time for an April 5,1982 ' revision:

l-1.

Questions by Judge Harbour concerning QA/QC involvement in underpinning j.

design and construction. The Staff noted that a meeting was scheduled t

for March 10, 1982 on this subject.

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2. ' Underground piping. The,information requested by the staff during the February 16 hearing session will be submitted for review March 15, 1982.

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Dewatering. Mr. Budzik stated that if.the staff finds that "a second 6

earthquake" (aftershocks of significant magnitude) must be considered t i after failure of non-seismic underground lines near the Diesel i

Generator Building,- then Consumers would prefer to go to the hearing with this issue open and refer the matter to the Board for resolution.

4.

Diesel Fuel Oil Storage Tanks. Mr. Budzik believes the information y

requested by the Staff during the March 3,1982 meeting can be provided before or during the March 16-19, ik982 audit meeting in Ann Arbor.

The information is intended to show that loose sand identified 4

beneath the tank does not give rise to a liquefaction concern.

Ms. Adensam noted that since the technical staff will be in Ann Arbor, March 16-19,1982, the following week for preparation and filing of testimony only leaves one week for Board review, whereas a two week period is typically provided for. The Staff stated that a two week hearing session beginning April 27, 1982, in its opinion, is the earliest that resolution of issues should reasonable be expected. Mr. Budzik replied that an earlier hearing is necessary because, in his experiences, "if the staff is not confronted with a hearing, it will use its time on matters not Midland related, and the Midland review will be later." Ms Adensam stated that holding a hearing prior to resolution of an issue is not in the interest of the schedule, but i

the Staff will not object to whatever hearing schedule Consumers believes i

to be in it's best interest.

Mr. Budzik believes that issues remaining after the April 5 session should be scheduled for an April 26 hearing session. These issues include those for the Service Water Pump Structure, the Diesel Generator Building, various QA issues, and any resident matters on thge Borated Water Storage s

Tanks.

l Mr. Budzik further stressed that the technical staff should direct its i.

efforts to matters of significance to the immediate construction schedule,

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rather than upon matters soon to be the subject of the next hearing. Of j i immediate interest to construction is (1) excavation beneath the Feedwater Isolation Valve Pits and Tubine Building (i.e., Phase II of the Auxiliary Building underpinning, (2) underpinning initiation of the Service Water Pump Structure, and (3) construction of the new ring foundation for the Boarated Water Storage Tanks. A preliminary list of construction priorities had been provided to the Staff on March 1,1982 (Enclosure 2), and a revised listing will be provided shortly by telephone.

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11 Subsequent to this meeting, Messrs Budzik and Brunner called Ms Adensam on March 5,1982 to provide Consumers revised list of construction

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priorities.

See Enclosure 3

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A real need exists to establish and adhere to a fixed review sequence for the various remedial activities at Midland.

It is recommended that Enclosure 3 H

be used as a basis for Staff's Midland review priorities and hearing scheduling purposes, and that substantial justification be required for

}j changes in this priority. The applicant should be formally advised of this staff position, t

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Darl Hood, Project Manager Licensing Branch #4 Division of Licensing

Enclosures:

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ENCLOSURE 1 4

7 ATTENDEES March 4, 1982

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a Consumers i

D. Budzik J. Brunner, Esq.

i NRC t

W. Paton, Esq.

M. Blume, Esq J. Ruther, Esq.

E. Adensam

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D. Hood R. Hernan 9

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s ENCLOSURE 2 o

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1 The following Midland construction schedules for soils remedial actions were i

provided by Mr. J. Mooney to E. Adensam on March 1,1982:

d I minent - Start construction of 8WST new ring beam l

Mid-March - Auxiliary Building Ventical Access Shaft to reach Elevation 609' March 18 - Start excavation under FIVP and TB (Phase II)

March 23 - Activation of freezewall i

April 15 - My 1 - Start preparation work for replacement of underground e

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36" SWS pipes 1

April 15 - Start SWPS access shaft and submit final design April 19 - Start excavation beneath Auxiliary Building (Phase III)

Mid-May - Start excavation beneath SWPS and construction of piers s

May 20 - Reset BWST t

s June 1 - Cut and replace-36" SWS piping

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ENCLOSURE 3 The following Midland construction schedules for sofis remedial actions

.i were provided by Mr. D. Budzik and Mr. J. Brunner, Esq. to Ms. E. Adensam, one March 5, 1982:

1 Priorities l

1.

QA Plan on Underpinning 3/12/82 2.

Phase II construction for the Aux. Bldg.

3/15/82 i

3.

Service Water Pump Structure a.

Vertical access shaft and construction dewatering 3/23/82 b.

Remainder of Underpinning construction (Q-listed work, excavation, etc.)

4/15/82 4.

Underground Piping 4/15/82 5.

Borated Water Storage Tank a.

Construction of new ring foundation 3/26/82 b.

Re-leveling of tanks 5/21/82 6.

Phase III construction for Aux. Bldg.

underpinning 6/15/82 7.

Diesel Generator Bui1 ding

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O AUXILIARY BUILDING AND FIVP 4

CONFIRMATORY ISSUES V

• kvde. (edesign 4 d 6&md apod eoA pem<cs donnci dn(4 excouchon basMI ne< & c. eu m sse m

' irovide revised detalid of degd et bank isolation at freezewall crossing' Y

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e e Provide piezometer locations,for construction dewatering and 4 Rs uad locabns 4 u eIIS-9 e Perform E-==MH9: analysis of the construction condition using a subgrade modulus of 70 kcf and provide results

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e Provide allowable differential settlements for Phase 3 (based on above) g-e l)erform an analysis for reduced support along the EPA due to tunneling under the turbine building and provide results br o'hcol tones ia Ik%n Amilw3 bidin3 ancKohll*v,'

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....Migvigt. Eo".c.?*Dglodneger.oced res for verification of hard clay modulus'tedo d S couclah

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• Provide horizontal movement acceptance criteria prior to Phase 3 for instruments

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o Provide acceptance criteria or strfifn monitors prior'to Phase 3 nbbis { shrain gay ind4lshon

• @*"'*# 3flt Ud %"uM[*"$.sgRycgc,actio;[ pm,,,j,,p, ov t,

e Provide a report on crack repair e Audit of permanent underpinning wall design o Reinspection of instrumentation installation (NRC actionT!

., Providc updded condiwhen sagaence $,- bc3 3 u,,A 4 l

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• buo,ent% vernuluA och m to be tacen s(allowable set)lernen+ li if o FwPmovement is aodml.

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............ ' % vicle sedement memMn3 trograrn %b ruguired don ec 3, e{ plod opercdion J, tapts

MS7M/ pchon leuds and remdor mensores idenh[gv r-igonk nnmg exawf@ndM a.;,,o.of sed CTeck

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..a SERVICE WATER PUMP STRUCTURE CONFIRMATORY ISSUES e Prov,lde basis for establishing existing structural stresses e Provide justificatiop for use o" a subgrade modylu of 4000 KCF during final' Jacking or altern h

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e Provide acceptance criteria for allowable differential settlement e Review 1.5 FSAR SSE versus SSRS study (NRC action) e Recheck tendon anchor analysis for shear at plate and wa!I and provide, results e Re"-evaluate use of drilled-in dowels regarding embedment or use of rock bolts e Perform sliding calculation using site-specific response spectra (SSRS) seismic loads and provide results wik bam -(w oiwaied wi ingt pnmerers e Complete the calculation for an empty forebay cell and provide results 4

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SERVICE WATER PUMP STRUCTURE CONFIRMATORY ISSUES (cont'd) e Provide maximum rebar stress in all elements of the base slab at elevation 620' e Provide maximum rebar stress in. elements adjacent to identified critical elements and other areas of potential high stress e Complete calculations for out-of-plane shear and provide results

e. Provide more information as to stress condition for existing parts of structure J

e Maximum stresses g

s Critical conibinatioris

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e identify true critical elements based on actual rebar e Provide evaluation of interaction of the SWPS with the circulating water pump

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structure and retaining wall.and electrical duct banks e Provide procedures for acceptance of the b' aring stratum e

e Maximum thickness of lean concrete

'aAsued o Maximum differential elevation between,pler bottoms e Provide pier load test procedure

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..e P'rovide strain monitoring criteria -[ matrix

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.. _c SERVICE WATER PUMP STRUCTURE CONFIRMATORY ISSUES (cont'd) e Provide drawings on strain monitoring and Carlson meters, including locations and details

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e. identify critical construction stages and critical measurements

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e Provide summary submittal of' specification or drawing notes to cover frequency for checking and adjusting Jacking loads

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'e Provide method to be followed for transfer of Jacking load into perman nt wall e Prov!de decision on tunnel location prior to hearing and reyed on med@ed condruchon yiecedurc.

e Provide a report on crack repair-e Perform a limit analysis on a wall considering the effects of cracking o Provide a commit' ment for monitoring fines from construction wells'in Q-ilsted areas using a five micron filter (informational test) i InCj h ( E-Q M i chirnmlyt} W weed h{[mmrs 4 pl. bgem6 a ulim l

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CONFIRMATORYlSSUES 4/9/82.

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j BORATED WATER STORAGE TANKS LIST.0F CONFIRMATORY ISSUES i

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- e Evaluation of composite ring beam (NRC action) e Provide detailed releveling procedure for Unit 1 tank h

e Review calculstions for governing load combinations (NRC action) e Provide strain monitoring details, procedures, and acceptance criteria for new ring beam e Review 1.5 FSAR SSE versus SSRS study (NRC action) dn"'y Via ck hnf Pcdior wih action \\wel5

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UNDERGROUND UTILITIES CONFIRMATORY ISSUES o Resolution of seismic analysis considering motion in two directions (NRC action) e Resolution of whether settlement of reinstalled pipe includes differential settlement (NRC action)

I o Provide a tabulation of stress values for reinstalled pipe. Tabulation to be a l

summation of primary and secondary stresses including 1-% inches of settlement h

• Provide further details of safety related 48-inch diameter cooling tower line.

referenced in the reinstallation program

e. Provide a table defining correlation of strainlovality for the monitoring program

' e Provide further definition of number, orientation, and spacing of strain gages at each monitoring station-h e Provide definition of how 1.5 factor of safety is applied in the monitoring program ho%bt boCom n o

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e R~ panse on diegel. oil tank borings confirming scope of local sand pocket o d roolh ek r

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~61ESEL GENnRATOR BUILDING I

CONFIRMATORY ISSUES i

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• Perform a structural reanalysis considering:

e Presurcharge conditions e Conditions during the surcharge

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.e 40-year settlement effects q

h e The combined effects of above i

rdx. hon sh%n we s sn e

e Perform a structural reanalysis assumingtre=e!-ef soll springgh between bays 3 and 4 on the south side 4 beneab odhcevit cross v)ok.

e Perform gs{aghical ' lugemenys gt8ig ve(% evahoh,"Pb4 SON"j"wV

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<enfa\\ se upe sevsus oc a o Perform a comparison of 1.5 X SSE (FSAR) versus SSSR loading effects l

.* Provide criteria relating crack width and spacing to reinforcing steel stress e Provide a report on crack repair for the building j

• Prowde seM hed mond f*9 h ya>nyo L r$uved donnyNeus ok p avd l

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'h AUXILIARY BUILDING AND FIVP REf%INING ISSUES '

GES e

PROVIDE REVISED DETAILS OF DEEP DUCT BANK ISOLATION AT FREEZENALL CROSSING.

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PROVIDE PIEZOETER LOCATIONS AND DEPTH FOR CONSTRUCTION DB%TERING AND DEPTHS AND LOCATIONS f

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REINSPECTION OF INSTRlENTATION. INSTALLATION (tRC ACTION).

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PROVIDE REDESI9l 0F STIFFENED BULKHEAD AGAINST EARTH PRESSLRES 1 RING DRIFT EXCAVATION TO INSTALL NEEDLE BEAM ASSE?ELY. N O M

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PROVIDE CHANGE IN LOCATIONS FOR INSTRtMENTS DSB-ASl AND DSB-AS2.

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DOClMNT THE REEDIAL ACTIONS TO BE TAKEN IF ALLOWABLE SETTLENNT LIMIT ON FIVP MOVEENT IS REACED.

e PROVIDE PROCEDLRE TO BE REQUIRED FOR DETECTING EXTENT OF PLANAR OP INGS OVEREDINgIFT EXCAVATIONS AND CONTROLS TO MINIMIZE T EIR EFFECTS.'

GES WA 0 PROVIDE UPDATED CONSTRUCTION SEQUENCE FOR PHASES 3 AND l.l (yg3 0 PERFORM AN ANALYSIS OF T E CONSTRUCTION CONDITION SING A MODULUSOF70KCFAND PROVIDE RESULTS. NNt T80 M

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i AUXILIARY BUILDING AND FIVP REMAINING ISSUES (CONT'D) foe.5 e PROVIDE ALLOWABLE DIFFERENTIAL SETTLEENTS FOR PHASE 3 (BASED ON ABOVE).

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PROVI we CONE eeNerRmereR mthVERIFICATls *OF HARD CLAY D- ** MF LOAD ' list PROCEDURES F ON WITH Asi er

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44 M M f 665M e PROVIDE ACCEPTANCE CRITERIA FOR STRAIN MONITORS PRIOR TO PHASE 3 AND DETAILS OF STRAIN GAGE INSTALLATION.

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PROVIDE ETHOD TO BE FOLLOED FOR TRANSFER OF JACKING LOAD INTO PERMAENT WALL.

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PROVIDE A REPORT ON. CRACK REPAIR.

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ALDIT OF PERMANENT UNDERPINNING WALL DESIGN.

1 r-SES e REVIEH STUDY OF 1.5 FSAR SSE VERSUS SSRS (NRC ACTION).

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GES e PROVIDE PLANS AND DETAILS FOR PERMANENTLY BACKFILLING LMDERPIPNING EXCAVATIONS INCLUDING COPFACTION SPECIFICATIONS FOR GRANULAR FILL UNDER FIVP.

NO PROVIDE SETTLIMENT MONITORING PROGRAM TO BE REQUIRED DLRING YEARS OF PLANT OPERATION WITH ACTION LEVELS APO REEDIAL MASURES IDENTIFIED (TECH SPEC). CL= IS3M GE5 M e PROVIDE AS-BUILT REPORT WIh{ CONFIRMATORY DATA ON UNDERPINNING IN FSAR UPON COMPLETION OF CONSTRUCTION. % b 3wt.

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0 SERVICE HATER PltP STRUCTURE REMAINING ISSUES MO e

PROVIDE BASIS FOR ESTABLISHING EXISTING STRUCTtRAL STRESSES.

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PROVIDE JUSTIFICAT).ON FOR USE OF A SlEGRADE MODULUS OF M KCF DURING FINAL JACKING

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PROVIDE ACCEPTANCE CRITERIA FOR ALL0HABLE DIFFERENTIAL SETTLEENT.

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se,% 0 REVIEW 3.5 FSAR SSE VERSUS SSRS STl0Y (NRC ACTION).

166 e RECECK TEt00N ANCHOR ANALYSIS FOR SEAR AT PLATE AND WALL AND PROVIDE RESULTS.

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RE-EVALUATE USE OF DRILLED-IN DOHELS REGARDING EMBEDMENT OR USE OF ROCK BOLTS.

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Subject:

Identification of Geotechnical Engineering Section's Review a

- -l Concerns Prior to Initiating Phase 2 Underpinning Work 3

MIDLNJD - NMLt AMi blDiM6-K Phase 2a No.

Review Concern Cib g

W k k a u-(A f6 5)

Q Submittal of Updated Construction Sequence Drawing (Identifiedulgitag i

1 N

in Feb. 3-5 Audit and Feb. 26, 1982 Meeting).

g j-3 2.

Letter documenting actual work to be performed under Phase 2a be h -ba *

e.,

(telephone record, March 8,1982. Par. 3). Letter should provide 1"'"

lb [ M *.:

comitment not to proceed with 2b until the analyses using NRC recomended stiffness valves are completed and results reviewed by NRC Staff.

[

3.

Update drawing of " Monitoring Matrix", No. C-1493(Q) that will WM wdc % t.24 t

include tolerance criteria (Telephone record, Mar. 8,1982, b%

Par. 4.b).

4.

CPC comitment to have 6 deep seated bench marks with instruments g &

int. called and operational before beginning Phase 2a work.

WMi462 N

(Telephone record, March 8,1982, Par. 4.B and Par. 5). Also instruments DMD-1W. DMD-1E DSB-1W. DSB-1E are to be installed and operational.

(Feb 3-5 Design Audit).

gg4 5.

Submittal of strain gage installation details 9 El 65F with O li b b N T

• b Q

limiting strain values and basis (Feb. 26,1982 meeting andp gfh"'g" j

telephone record, Mar. 8,1982, Par 4.d).

M 6.

Comitment to perform test 1 cad above design load (e.g.,D.30 QC cued b'

~

times) on ' installed pier to develop load-dsflection curv6

%Q

'?

for verification of hard clay soil modulus. Identify pier.

he4 4 3

(Feb. 3-5 Design Audit).cc M,, Q h g c3 C sen H d W e a h we i

7.

h g,4 Sutoittal of measures to be required during periods of worka %,., w g i

b tiv 7,bplt(Feb. 3-5 Design Audit).Aw & shutdown'to support. faces of dr{9f' g ftsgn g

?.

s t

y 8.

Submittal of plans for dewatering localized water pockets hj (e.g., placing wells in rand fill around reactor perimeter) in advance of pit construction (Feb. 3-5 Design Audit).

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d Phase 2b 6..A b b h

Review Concern Nb f* N N'lt k

$ cn ea h b b b o w Fat w ment

• 4 @ Ouot 3

,.';g 1.

Provide instrumentatio details and horizontal movement tolerance criteria with basis, for 3 instruments to be installed at top of EPA's and Control Tower (Telephone record, March 8, 1982, Par. 4.c and Par. 5). Dm9-n,9M.it WD-G 2.

Submittal'of results from analysis that establishes induced

\\pjlk p;

i stresses at El 659 assuming EPA is supported by first temporary

.amh)sh i

) support (Pier WB) and using Existing Soil Springs under EPA and b

3

(, Control Tower andg(11ary B ding (b.l. E Feb.

5DesignAudit)

Q'3 n

3 See, mamiNeden b kc kgis y g

Connitment by CPC to have installed and operational all of the ;

3.

remaining instruments identified on Drwg C-1493(Q).qf( 9e b mh i

h. svid.b)

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lethn certWdtee h( NCe )$6$n htk'>heb Re d U5l82 ~

~

QUESTIONS RELATING TO

. AUXILIARY BUILDING UNDERPINNING b

• M i

AUDIT OF MARCH 16-19, 1982

-[,-

Proje.ct 81907

. ]:'

4 March 15, 1982 gg p ade m cemek h{4 vdi Ince,orwnd nedx trin ch/b.

'YiI"

( r sah d e 4 h h u.:d i

m MfM,4.a by e

1.'

removal of soil support beneath the EPA prior to support the end opposite the control tower seems to be too a

extensive.

Is there any way to reduce the amount of removal, e.g., by placing piers directly under the end of

~

the EPA rather than using,the needle beam system?

M[.4 c

2.

The FIVP is now supported on the buttress access shaft and

, l on_the turbine building.

Therefore, it will be necessary to y:

monitor the vertical movement of the FIVP relative to the 7

Q reactor containment and relative to the turbine building a

more frequently than every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> during initial excava-

,,.g 0

tion stages.

The vertical and horizontal movement of the h

buttresa access shaf t relative to the reactor should also be monitored more frequently ~ than every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> _ when soil is 1

removed adjacent to the buttress accesis shaft.

3!

, ;M,

v:

DLiGted 3.

-Please review the stress changes in the main-auxiliary U

building when the EPA acts as a propped cantilever with no 3

( QM )

soil support.

4.

How far off center from the turbine building columns are the new piers near the long access drift?

Is it reasonable to move the drift to the south about 8.ft thereby reducing the loss of support under the EPA and t#ig/'*4geturg9e#Q the building piers to be centered? ""

P

• • • " 5

~.4 1 What material'd h<ed Q f awillbet8eMas d

(ind lagging in

' '~

m 5.

ng pac g

the deif ts and piers?

.10"hi$u(oard - f%rM Meige. 2.,d'le34)

.x b

WW Mi,g

< ~

)

6.

Describe sequence of events in placing a new set and lagging L,

in the drift.

Xe.

2 7.

How will the electrical ducts under the control tower be

~

I; supported?

codvol ib 8.

Monitor absolute vertical movement of 1

" b g more I

i frequent.Ut than every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> as the drift approaches the control zwar and during installation of the first few CT piers.

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