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e Terence J Sullsvan g
Manager. Safety & Lscensmg Mediand Project General Otinces:
1945 West Pomell Mood. Jackson. Mich6een 49201 e (S173 788 2972 A,ril 12, 1982 KED 13-82 4'
i David C Fischer
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Advisory Cocunittee on Reactor Safeguards j
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US Nuclear Regulatory Comunission
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1717 H Street, NW Washington, DC 20555 L
MIDLAND ?ROJECT ACRS SOILS INFORMATION
' FILE:
0906.4 SIRIAL: 16625 I
In response to your request for infortnation concerning the Midland Soils l
issue, the enclosed additional documents are transmitted for your use.
documents are summarized in the attachment to this letter.
These if you need any additional information or assistance.
Please let us know
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' Karl E Drehobl For David A Sommers, Section Head Environmental Licensing and Radiological Safety Attachment CC JWCook RWHuston
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DFlewis, Bechtel DBMiller, Midland JAMooney TRThiruvengadam TJSullivan h0Mp[0204073g MAY EkQ RICEBA-96 pyg oc0482-0865a131
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.p DIESEL GENERATOR BUILDING.
1.
Serial 15978, Intter to H R Denton From J A Mooney, Dated 2/16/82 on Evaluation Report for Concrete Cracks in the Diesel Generator Building and
Enclosure:
Evaluation 'of the Effect on Structural Strength of Cracks in the Walls of the Diesel Generator Building 3-2.
Serial lk316, Letter to H R Denton Frc= J W Cook (J A Mooney), Dated
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10/21/81 on Remaining NRC Soils-Related Concerns For Diesel Generator Building and
Enclosures:
A) Structural Stresses Induced By the Differentitt Settlement of the Diesel Generator Building, 3) Subgrade Modulus and Spring Constant Values for Diesel Generator Building
. Structural Analysis, C) Bearing Capacity Evaluation of Diesel Generator Building Foundation, D) Long-Ter= Monitoring of Settlement for Diesel Generator Building, E) Relative Density and Shakedown Settle =ent of Sand Under the Diesel Generator Building, F) Estimates of Relative Density of Granular Fill Materials, Diesel Generator Building, Midland Flant, G) Review and Control of Facility Changes to the Diesel Generator Building,
, and H) Diesel Generator Building Bearing Pressure Due to Equipment and Co==odities.
3.
Serial 1 kill, Letter to H R Denton Fro: J W Cook (G S Keele;-) Dated 10/2/81 on Diesel Generator Building Concrete Crack Analysic Stud / and Enclosures 1) A Study of Stress in the Vicinity of a Crack in a Wall of the Diesel Generator Building, and 2) Appendix A to Enclosure (1) Final Report on the Adina Concrete Cracking Analysis for the Diesel Generator Building by Cygna Energy Services.
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i AUXILIA=Y BUILDING AND W JATER ISOLATION VALVE PIT 1.
Serial 1379h, Letter to E R Denton From J V Cook (G S Keeley), Dated 9/22/81, subject and
Enclosure:
Test Results, Foundation Soils, Auxiliary Building (Part 1), Soil Boring and Testing Progra=,
Midland Plant Serial lhl10, Letter to R R Denton From J V Cook, Dated 9/30/81 on 2.
Sub=ittal of the Auxiliary Building Dyna =ie Model, Enclosures 1 and 2:
Auxiliar-/ Building Seismic M: del; Technical Report on Underpinning the Auxiliary Bwilding and Feedvater Isolation Valve Pits 3
Serial lh869, Letter to E R Denton From J V Cook, Dated 11/16/81, Subject and
Enclosure:
Response to NRC Staff Request for Additional Infor a: ion Pertaining to the Proposed Underpinning of the Auxiliary Building and Feedvater Isolation Valve Pits L.
Serial IL87k, Letter to E R Denton From J V Cook (G S Keeley), Dated
,11/2h/81, Subject and
Enclosure:
Test Results, Auxiliary Building
( Part 2), Soil Boring and Testing Program, Midland Plant Serial 1L899, Letter to H R Denton From J W Cook, Dated 12/3/81, Subject 5
and
Enclosures:
Addendu= to Technical Report,on Underpinning of the Auxiliary Building and Feedvater Isolation Valve Pits 6.
Serial 15h93, Letter to H R Denton From J A Mooney, Dated 1/25/82 on Evaluation of Feedvater Isolation Valve Pits and Enclosures 1 and 2; Evaluation of Feedvater Isolation Valve Pits at Midland Plant, Feedvater Isolation Valve Pit Crack Monitoring Program 7
Serial 15527, Letter to H R Denton From J V Cook (G S Keeley), Date'd.
1/29/82, Gubject and
Enclosure:
Evaluation Report for the Auxiliary Building Control Tower and Electrical Penetration Areas at Midland Plant i
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BORATED WATER SERVICE 1.
Serial lh902, Letter to J G Keppler From J V Cook, Dated 11/2h/81 on Borated Wat,er Storage Tank Foundation OL Design Calculations and
Enclosure:
Addendun No 1 - Design Report for the Borated Water Storage Tanks Foundation Analysis 2.
Serial lh339, Letter to J G Keppler From J V Cook (G S Keeley), Dated 11/13/81 on Surcharge of the Berated Water Storage Tank Foundation and
Enclosure:
Midland Plants Units 1 and 2 Design Report for the 3 crated hter Storage Tanks Foundation Analysis 3
Serial lh2B1, letter to H R Denton Fron J W Cook (G S Keeley), Dated 11/10/81 on Results of Soil Boring and Testing Progra= for Borated Water Storage Tanks and
Enclosures:
A.
Test Results, Borated Water Storage Tanks, Soil Boring and Testing Progran, Midland Plant - Units 1 and 2 3.
Figure 1 - Settle =ent vs Logarithn of Tine Tank Far= West Borated Water Tank C.
Figure 2 - Settlenent vs Logarithm of Time Tank Far= Iast Borated Water Tank 9
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i-1 PERMANENT PLANT DEWATERING I>
1.
Serial 118.}B, Letter to E R Denton From J W Cook, Dated h/2h/81 on Permanent Plant Devatering 2.
Serial 12225, Letter to E R Denton From J W Cook, Dated 5/28/81 on Permanent Plant Devatering and
Enclosures:
A.
Revised Pages for Specification C-88
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3.
Bechtel Quality Control Instructions for Gravel-Packed Wells C.
Consuqers Power Midland Project Quality Assurance Department -
Project Inspection Plan and Report 3
Serial 1377h, Letter to H R Denton Frc= J W Cook, Dated 9/16/81 on Per=anent Plant Devatering Well Installation and Enclosures :
A.
Table 1 - Permanent Devatering Well Schedule 3.
Figure 1 - Pe~anent Devatering and Menitoring Well Locatien Plan b.
50 5ht Questions:
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SERVICE WA*ER "'JMo S~2.UCTu~4E 1.
Serial 13738, Letter to E R Denton From J V Cook Dated 8/26/81 on Soils Settlement Remedial Action for Service Water P=p Structure (S l
and Enclosure 1:
Technical Report on Underpinning the Service Water P=p Structure 2.
Serial ILh10, Letter to E R Denton Frc= J V Cook (G S Keeley) Dated 9/30/81 on Submittal of the Auxiliar/ Suilding Dynamic Model, Service Water F=p Structure Dyna:nic Model and Description of Soils Sedl P-medial #ix for the Auxiliary Building.
e=ent :
Service Water P=p Structure Seismic Model 3
Ser.ial 1k380, Letter to E R Denten Fro: J W Cook Dated 11/6/81 Subject and
Enclosure:
Scring; and Testing Frogra=, Midland Units 1 and 2 Test Results, Service L.
11/6/81, SubjectSerial IL8L3, Letter to H R Denton Frcs J V Cook (G S Kee and
Enclosure:
Additional Info =ation Fertaining to Proposed Underpinning of theRes Service Water Pu=p Structure 5
Serial 16009, Letter to E R Denton From J W Cook Dated 3/2/82 and
Enclosure:
, subject at Midland P' ar.tEvaluation of Cracking in Service Water F=p Structure 6.
Serial 16352, Letter to H R Denton From J V Cook Dated 3/2/82 Subject and
Enclosure:
the Service Water P=p StructureThree-Dimensional Finite-Element Models for t
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4 UNDIEGROUND UTILTIIIS 1.
Serial 16269, Letter to H R Denton Fro = J V Cook, Dated 3/16/82 on Additional Infor=ation Conce:ning Safety Grade Buried Piping and
Enclosures:
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Future Monitoring Prog-a= of Buried Service Water Piping for Midland Plant Units 1 and 2 3.
Reinstallation Progra: for 26-Inch and 36-Inch Dia=eter En-ied Service Water Pites at the Midland Nuclear Plant 2.
Serial 15093, Letter to E R Denton Fro = J V Cook (G S Keeley), Dated 12/15/81 on Underground Piping Concerns and Inclosure: Analysis of Euried Piping for Midland Plant Units 1 and 2 3.
50.5k? Questions:
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'TIV Q f.W-CORSum8f5 Power mm Company
~ ~,u--~sary.-y sud Conserwction pptrr" Generes offices: 1945 West Parnell Road, Jackson, MI 49201 * (517) 78& O453
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g April 5, 1982
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Mr J G Keppler fgl j ' ", -- g Regional Administrator US Nuclear Regulatory Co==ission DE&TT [d l
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]e-M' OEP W 799 Roosevelt Road Glen Ellyn, IL 60137 MIDLAND PROJECT - DOCKETS 50-329 AND 50-330 QUALITY ASSURANCE FOR REMEDIAL FOUNDATION WORK FILE 0.h.9 20.6 SERIAL 16161 Reference 1: Letter from Mr D Hood, dated March 12, 1982 on the subject:
"Su==ary of March 10, 1982 Meeting concerning Quality Assurance to be Applied to Remedial Foundation, Work" On March 30, representatives from Consumers Power Company (Messrs J W Cook, J A Mooney, B W Marguglio, et al) met with representatives from the NRC (Messrs C E Norelius, W Little, E G Adensas, D S Hood, et al) in the Regien III office in Glen Ellyn, Illinois to discuss the Quality Assurance Progra.
for the Midland Remedial Foundation Work.
The purpose of this letter is to document the conclusions and co=mittents that were made at that meeting and subsequently discussed during several telephone conversations on April 2, 1932.
The major conclusion reached at the meeting was the Consumers Power Company commitment to place essentially all of the to-go underpinning work under the coverage of the Quality Plan For Underpinning Activities, MPQP-1, which had previously been discussed with the staff, most recently at the March 10, 1982 meeting in Bethesda as su=marized in the correspondence cited as Reference 1.
This expansion of the QA program coverage for the underpinning work is effec-tive immediately, but recognizes specific exceptions to cover previously completed non-q-listed work and ce.. itin future work as identified in Attach-ment 1 to this letter. Expansion of QA program coverage is in recognition not only of the importance of this work to public health and safety but also to the overall success of the Midland Project. As a result, the program is being applied to both safety-related and nonsafety-related items and activ-ities without any further attempt to resolve prior discussions as to the exact definition and boundaries of safety-related as applied to each indi-vidual aspect of the underpinning work.
Certain other concepts related to the extended application of the QA program to the underpinning vork were discussed at the prior meeting on March 10 (Reference 1) and reaffirmed in the discussion at our meeting on March 30.
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Both parties agreed that the Quality Assurance Program for Remedial Foundation Work will be applied to the multitude of underpinning items and activities to the extent com=ensurate with the importance of the individual items. This
-vill be implemented by identifying the specific quality requirements that t
apply to each of the items and activities now covered by the program so that all parties whether carrying out or 2nspecting the work vill have a clear understanding of what the actual quality requirements are for each item and activity.
As the underpinning vork progresses, any new exceptions to the coverage under the QA progra= vhich are considered appropriate vill be co==unicated in writ-
.ing to Mr C E Norelius of the NRC Region III such that it is received at least five working days prior to the scheduled start of the affected work.
It was agreed that this co==unication mechanis= vill provide NRC with sufficient time i
to review any such requests and respond to Mr J A Mooney of Consumers Power Company prior to the scheduled start of the affected work.
With regard to the exception list, subsequent to the March 30 meeting, discus-siens have been held with the NRC Region III staff on April 2 during which the NRC raised questions about the Q-list status of two ite=s:
(1) the rock bolts and rock and earth anchors, and (2) the connecting piping for the permanent devatering syste=.
In response to the first item, program coverage vill be extended to all reck bolts and rock and earth anchors to be installed after April 2,1982 which includes all permanent installations. With regard to the second ite=, the exception list as provided during the March 30 meeting, in-cluded the permanent devatering system. However, this ite has been deleted fro = the attached exception list because it is not a part of the underpinning work.
It should also be noted that the non-Q classification of the permanent f
devatering system, except for the installation of wells and the monitoring of I
fines, had been specifically resolved previously with the NRR staff.
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In order to facilitate co==unications between Consu=ers Power Company and URC Region III personnel during the course of the underpinning work, a number of agreements were reached as to co==unication channels. Dr R B Lands =an has been designated as the Region III lead inspector for underpinning work with Mr R J Cook to assist in his capacity as resident inspector at the site.
Consumers Power Co=pany designated Messrs J R Schaub and D E Horn as the prime contacts for Dr Lands =an and Mr Cook to obtain whatever specific de-tailed information they required for this work. In addition, we agreed to provide Region III, through nor=al distribution, weekly or biveekly reports (frequency to be determined) su== arising the results of the just completed work and describing the schedule of work for the i==ediate forthcoming period.
All of the above infor=ation is in addition-to the existing transmittal of nonconfor=ance reports and other documents to Region III.
We believe that the results of the March 30 meeting as su==arised above ad-dresses all outstanding ite=s in the staff's review of the Quality Assurance Program for the Remedial Foundation Work. We would appreciate a written confir=ation of this conclusion.
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i We also discussed, as part of our March 30 meeting, Consumers Power Company's request that the NRC's lead inspector for the underpinning verk spend as =uch time on the site as practicable in order to be thoroughly conversant with all current and short-ter= planned activities. We believe this is essential in order that we =ay be responsive to whatever additional infomation and discussions he wishes to pursue and to minimize the possibility of any misunderstandings.
In order to facilitate the NRC's inspection planning, we vill provide shortly and continue to provide updated overall underpinning schedule information and our specific reco==endations of which aspects of this work the NRC should consider including in their inspection plan.
JWC/BWM/kdz : Exceptions to the Project Quality Assurance Program Coverage for Underpinning CC:
Atemic Safety & Licensing Appeal Board Director - Office of Inspection & Enforce =ent Att: Mr Richard C OcYoung, US NRC Director - Office of Management Information & Progra Control, US NRC i
CBechhoefer, ASG JDKane, US NRC
?C Cherry, Esq W0tte, US Army Corps of Engineers RJCook, Midland Resident Insp WEMarshall FPCowan, ASG SJPoulos RSDecker, ASG FRinaldi, US NRC HRDenton, US NRC HSingh, US Ar.y Corps of Engineers JHarbcur, AS G MSinclair DSHood, US NRC BSta= iris CE'iorelius, US NRC E,ittle, US NRC N
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Exceptions to the Project Quality Assurance Program Coverage for Underpinning:
- 1.. Freeze vall, other than for the protection of Category I utilities which are Covered; ppg;9 g., A,
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Auxiliary building access shaft activities above elevation 609 and soldier Piles; p.g pe
- 3. Ch procuremenjof soldier pile material; tools and equipment (such as torque vrenches, Jacks, gauje_s and threading machines - but their cali-m brations are covered); $~ eel and'voo'dTg~ gig; backpacking material; rock bolts and rock and earti anchors alreEIy m stalled for temporary installa-tions; and glue.
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Attachment HVAC QA SECTION HEAD C-S HP Leonard SECRETARY, KS Allison C-S HVAC IE & TV SUPERVISOR l
- -S DK Martin l
CLERK, CA Sabo C-S l
l QAE CROUP ADMIN. CROUP INSP. GROUP 1 INSP. CROUP 2 INSP. CROUP 3 g,
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SUPERVISOR SUPERVISOR SUPERVISOR l*-S GE Parker
'-S SE Bandla
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I O-S S Cox
- -S M Bupp (Clerk) *-S J Dittenbir C-S R Bishop
- -S J Callivan
'-S (2nd Shift)
C-S E Coold
'-S E DeGeer
'-S R Cuentensberger *-S D Infante
- -S D Haas i
l 0-S W Heiberger
- -S L Fabel
'-S A Kunz
- -S T Kudich 8-S R Kucharek l
0-S H IE:Grane C-S J Lyons
'-S F McCloy C-3. F Lounds
- -S G Morgan l
0-E E Riley
'-S L Ray
'-S S Schymanski
- -S J Orr 8-S D Sanders
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0-S R-Bradley (h/5)
- -S J Ruiz
'-S T Tate
'-S C Sweet
'-S R Thurston
'-S A Tonda (3/31)
C-S K Benware (3/29)
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In t roduction A.
Meeting Purpose o discuss QA Program for Midland underpinning activity.
Recognize the importance based on (1) soils problems which led to this activity (2) hearing or, QA related aspects of soils issue (3)
Importance of assuring sound construction of safety related structures.
1 Both staffs agree to D. Hoods 3/12/82 memo and come to different conclusions 8.
Clarify Specific applicability of QA program to Instrumentation Installationi subject of proposed CAL.
(This letter held in abeyance pending clarlfication of apparent differing Interpretations.)
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7 2-Broader terms - what are the applicable requirements and basis for determination and what type of enforcement actions are appropriate.
Specifics on how our inspection program will be handled.
II. Course of Meeting A.
Recognize In terms of clarifying requirements, involve'd discussions you have had with NRR and on hearing to extent of whether your QA program works or not, need NRR and El.0.
Feeling among the staff that we have been misled JGK's Interest hearing testimony your specific request 8
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Plan i
Your construction schedule and our inspection schedule 1.
On arrival of HQ people, clarlfication of requirements l
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3 Greak & have JGK come back for summary i.
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3 Ill. Inspection Program A.
Dedication of one inspector and others, as needed.
B.
What is construction schedule?
C.
Major issues that they think we should inspect.
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Principal point of contact for Ross E.
Inspector's role same as always Does not concur in procedures beforehand Does not approve such things as QA Org. changes Does inspections of ongoing activity and reports his findings.
IV.
Confirmation of Action Letter A.
Problem - safety related ir.itrumentation installation activities were not carried out per QA requirements.
Marguglio stated Cook and Keppler had agreement.
Cook objected to such a letter and referenced discussions with Denton and Keppler.
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Solution - reached agreement that work would be stopped.
- CPCo would write letter confirming work stoppage.
Understan'd - Only mention with Denton was that it would be discussed with JGK.
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- Keppler gave no specific or general approval.
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Review
- Specifically identified as q listed item on 1/7/82 letter and therefore it is.
V.
What Are Requirements I
A.
Things identified in 1/7/82 letter B.
All Phase 2 activities unless approved other !se VI Surrrna ry Decision on CAL i
Agreement on enforcement Urgency of getting QA program to work!!!
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8 WASHINGTON, D. C. 20S55 gg 221982 Docket Nos: 50-329/330 OM, OL PRT"7 "i". ?T F f..;.i'".
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Mr. a. w. Cook A/D 3 -
Vice President
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Jackson, Michigan 49201 oc?rb bn2l 4
Dear Mr. Cook:
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Subject:
Compilation of Information Requested for Completion of Staff i
Review of Phase 2 Underpinning of Midland Auxiliary Building n
il Pursuant to the request of Mr. J. Mooney of your Company on March 11,1982, is a compilation of the infonnation needed for completion of
'the NRC's review of " phase 2" of the construction activities for underpinning of the Midland Auxiliary Building. " Phase 2" is defined by the Construction Sequence Logic Diagram provided the staff during a January 18-19,1982 audit meeting (Enclosure 1 of our meeting summary dated March 10,1982), and generally provides for forther deepening of the vertical access shaft, construction of limited drifts-under the Feedwater Isolation Valve Pits (FIVPs) and Turbine Building, and installation of certain piers.
Your prompt attention to these matters should provide for. staff concurrence i
with minimal impact to your present construr: tion schedule.
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The reporting and/or recordkeeping requirements contained in this affect d
fewer than ten respondents; therefore, OMB clearance is not required under
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P.L.96-511.
Si ncerely, l.
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Robert L. Tedesco, Assistant Direc. tor for Licensing Division of Licensing
Enclosure:
As stated cc: See next page L
MAR 2 51982 h
W Ar un,h i, x n
. MIDLAND 3
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Mr. J. W. Cook Vice President Consumers Power Cogany 1945 West Parnall Road Jackson. Michigan 49201 cc: Michael I. Miller, Esq.
Mr. Don van Farrowe, Chief Ronald G. Zamarin, Esq.
Division of Radiological Health..
Alan 5. Farnell, Esq.
Department of Public Health Isham, Lincoln & Beale P.O. Box 33035 Suite 4200 Lansing, Michigan 48909 1 First National Plaza Chicago, Illinois 60603 William J. Scanlon, Esq.
2034 Pauline Boulevard James E. Brunner, Esq.
Ann Arbor, Michigan 48103 Consumers Power Company 212 West Michigan Avenue U.S. Nuclear Regulatory Commission a
Jackson, Michigan 49201 Resident Inspectors Office Route 7 J'
Ms. Mary Sinclair Midland, MicNigan 48640 5711 Summerset Drive Midland, Michigan 48640 Ms. Barbara Stamiris 5795 N. River Stewart H. Freeman Freeland, Michigan 48623 Assistant Attorney General State of Michigan Environmental Mr. Paul A. Perry, Secretary Protection Division Consumers Power Cogany 720 Law Building 212 W. Michigan Avenue Lansing, Michigan 48913 Jackson, Michigan 49201 Mr. Wendell Marshall Mr. Walt Apley Route 10 c/o Mr. Max Clausen Midland, Michigan 48640 Battelle Pacific North West Labs (PNWL)
Battelle Blvd.
Mr. Roger W. Huston SIGMA IV Building Suite 220 Richland, Washington 99352
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7910 Woodmont Avenue Bethesda, Maryland 20814 Mr. I. Charak, Manager NRC Assistance Project Mr. R. B. Borsum Argonne National Laboratory Nuclear Power Generation Division 9700 South Cass Avenue Babcock & Wilcox Argonne, Illinois 60439 7910 Woodmont Avenue, Suite 220 Bethesda, Maryland 20814 James G. Keppler, Regional Administrator U.S. Nuclear Reguletory Comission, Cherry & Flynn Region III g
799 Roosevelt Road Suite 3700 Three First National Plaza Glen Ellyn, Illinois 60137 Chicago, Illinois 60602' Mr. Steve Gadler 2120 Carter Avenue St. Paul, Minnesota 55108 i
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-Mr. J. W. Cook 1 cc: Commander, Naval Surface Weapons Center ATTN:
P. C. Huang 1
White Oak Silver Spring, Maryland 20910 Mr. L. J. Auge, Manager Facility Design Engineering Energy Technology Engineering Center P.O. Box 1449 Canoga Park, California 91304 Mr. Neil Gehring o
a U.S. Corps of Engineers NCEED - T 7th Floor 477 Michigan Avenue Detroit, Michigan 48226 Charles Bechhoefer, Esq.
Atomic Safety & Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.
20555 Mr. Ralph S. Decker Atomic Safety & Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. Frederick P. Cowan Kpt. B-125 6125 N. Verde Trail Boca Raton, Florida 33433 Jerry Harbour, Esq.
Atomic Safety and Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.
20555-Geotechnical Engineers, Inc.
ATTN: Dr. Steve J. Poulos 1017 Main Street Winchester, Massachusetts 01890
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ENCLOSURE 1 a
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- gc-Identification of Review Concerns Prior to Initiating Phase 2
.I Underpinning Work Midland - Auxiliary Building
".5 r l'.- GE0 TECHNICAL ENGINEERING Phase 2a*
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Review Concern
_c-u-. ~r Submittal of Updated Construction Sequence Drawing (Identified l'
in Feb. 3-5 Audit and Feb. 26, 1982 Meeting).
. :x' Letter documenting actual work to be perforced under Phase 2a Letter should provic 2.
(telephone record, March 8,1982, Par. 3).
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commitment not to proceed with 2b until the analyses using NRC
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recommended stiffness valves are completed and result reviewed byt by NRC Staff.
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f Update drawing of " Monitoring Matrix", No. C-1493(Q) that will include tolerance criteria -(Telephone record, Mar. 8,1982, 3.
Par. 4.b).
CPC commitment to have 6 deep seated bench marks with instrumen installed and operational before begin'ning Phase 2a work.
4.
Also (Telephone record, March 8,1982, Par. 4.B and Par. 5).
instruments DMD-1W, DMD-1E, DSB-1W. DSB-1E are to be installed and - operational.
(Feb 3-5 Design Audit).
Submittal of strain gage installation details @ El 659 with s
limiting strain valves and basis (Feb. 26, 1982 meeting and 5.
telephone record, Mar. 8,1982, Par 4.d).
4 Comnitment to perform test load above design load (e.g.,1.30 times) on installed pier to develop load-deflection curve 6.
for verification of hard clay soil modulus.
Identify pier.
(Feb. 3-5 Design Audit).
Submittal of measures to be required during periods of work shutdown to support faces of drifts and bottoms of pits 7.
(Feb. 3-5 Design Audit).
Submittal of plans for dewatering localized water pockets (e.g., placing wells in sand fill around reactor perimeter) ir 8.
advance of pit construction (Feb. 3-5 Design Audit).
Phase 2aitemsarethosenotimpactedbyanalysesofthecnang f
modulus values beneath the main Auxiliary Building.
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No.
Review Concern 1.
Provide instrumentation details and horizontal movement tolerance "
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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).
2.
Submittal of results from analysis that establishes induced stresses at El 659 assuming EPA is supported by first temporary j
support (Pier W8) and using Existing Soil Springs under EPA and Control Tower and, Auxiliary Building (Feb. 3-5 Design Audit) i 3.
Comitment by CPC to have installed and operational all,of the remaining instruments identified on Drwg C-1493(Q).
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l II. STRUCTURAL ENGINEERING (Phase 2a)
Strain gauges or equivalent shall be provided at critical locations, including:
I a.
Elevation 659' slab b.
Control Tower shear wall c.
Slabs and walls near post-tensioning cables at the Control Tower and Electrical Penetration Areas d.
Steel beams shall have strain gauges, and not deflection L
meters'.
L Information shall be provided for these gauges regarding:
i 1.
Location 2.
Monitoring frequency 3.
Limits (initial and distress points) 4.
Evaluations of results (method and acceptance criteria) 5.
Commitment that instruments shall be in place and operational I
before beginning Phase 2a.
III. MECHANICAL ENGINEERING BRANCH (Prior to drifting beneath FIVP) 1.
Allowable movements shall be based upon total settlements since the main feedwater piping was first installed in 1977.
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A commitment that the 2" steam generator drain lines shall first be shown not to be limiting for allowable structural movements in the event a decision should be made to connect this piping prior N
to completion of underpinning.
e IV. QUALITY ASSURANCE Applicant shall notify NRC that all underpinning construction f
will be Q listed consistent with the NRC Staff's findings during the meeting of March 10, 1982.
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