ML20095A113
Text
{{#Wiki_filter:W~ u- ... = y fc..as._ i w . o at 'o,, UNITED STATES 8 NUCLEAR REGULATORY COMMISSION 1 c. { i WASHINGTON. D. C. 20555 n %,*****/a JUN 131979 Docket Nos.: 50-329 50-330 MEMORANDUM FOR: Steven A. Varga, Chief, Light Water Reactors Branch No. 4, t-Division of Project Management c FROM: Darl Hood, Project Manager, Light Water Reactors Branch h No. 4, Division of Project Management
SUBJECT:
NOTICE OF MEETING WITH CONSUMERS POWER COMPANY, NRC I&E AND NRR CONCERNING SOILS SETTLEMENT AT THE MIDLAND PLANT SITE h)EDU ECDAY, 3~u W A Date & Time: Tua Joy,.;13 10,1979 MM M a.m. 1 oo Location: P cr " !!1, "h" lip "ei'dia;;, Bethesda, Maryland AceM 6ll0 - A4MYLMO Nd14. BANK ButLDING-
Purpose:
To discuss abnormal settlement of fill and structures at Midland Plant site.
Participants:
NRC ~ J. Knight, et.al. Jim rienderson D. Hayes (I&E) F. Schauer G. Gallagner (I&E) L. Heller W. Haass Consumers "ower Corcnany G. Keeley. et.al. ~ Bechtel Associates ? / 4 //e fo D Darl Hood, Project Manager Light Water Reactors Branch No. 4 l Division of Project Management [ cc: See next page f 8408210384 840718 PDR FOIA RICE 84-96 PDR l E '/ 5 S (A b_ i t ~ hb
.m_ ---L. ~- i.; ,j .Q,. ' ~, n ^ Consumers Power Company ~ 1 ~ q cc: 1 Michael !. Miller, Esq. Mr. S. H. Howell Isham, Lincoln & Beale Vice President Suite 4200 Censumers Power Company One First National Plaza. 212 West. Michigan Avenue Chicago, Illinois 60670 Jackson, Michigan 49201 ( Judd L. Bacon, Esq. k Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 n Mr. Paul A. Perry Secretary Consumers Power Company 3 212 W. Michigan Avenue Jackson, Michigan 49201 ? Myron M. Cherry, Esq. One IBM Plaza ___. -. Chicago, Illinois 60611 1 Mary Sinclair 5711 Stsnmerset Drive Midland, Michigan 48649 I Frank J. Kelley, Esq. Attorney General State of Michigan Environmental Protection Division 720 Law Building Lansing, Michigan 48913 Mr. Wendell Marshall Route 10 Midland, Michigan 48640 i Grant J. Merritt, Esq. E Thompson, Nielsen, Klaverkamp & Jares 4444 IDS-Center 80 South Eighth Street. Minneapolis, Minnesota 55402 Mr. Don van Farowe, Chief Division of Radiological Health E Department of Public Health i: P. O. Box 33035 I Lansing, Michigan 48909 5 m L. )>& 1" A 1Jpkk N 'L. u --l
i, s __ (. - JZ 1: 59 7 MEETING N3TICE DISTRIBUTION Docket File. J. Knight NRC PDR S. Hanauer i Local PDR R. Tedesco TIC S. Pawlicki i LWR #4 File T. Schauer NRR Reading K. Kniel H. Denton T. Novak E. Case Z. Rosztoczy D. Crutchfield R. Bosnak D. Bunch R. Satterfield W. Butler R. Mattson F. Rosa R. DeYoung V. Moore D. Muller W. Kreger D. Loss M. Ernst D. Vassallo R. Denise D. Skovholt R. Ballard W. Ganrnill B. Youngblood F. Williams W. Regan J. Stolz G. Chipman R. Baer R. Houston
- 0. Parr J. Collins S. Varga G. Lear P. Collins M. Spangler T. Speis V. Benaroya W. Haass
.R. Jackson C. Heltemes L. Hulman ~ ACRS (16) H. Ornstein '~ L. Crocker J. LeDoux, IE H. Berkow IE Region III Project Manager D. Hood Principal Staff
Participants:
~ Attorney, ELD D. Hayes, IE Region III .IE(3) G. Gallagher, IE Regior III SD (7) R. Lipinski Licensing Assistant M. Service L. Heller ^ Receptionist b4P"Tillen L. Rubenstein J. Gilray L. Soffer R. Stephens L. Reiter F. Cherny W. Lovelace, S. Kari J. Henderson F. Schauer ~ qRe iss u s - _ ~.
w........
- ?
Q. .2: ^ re. 1st Gi:':; AGENDA s. e:k MEETING WITH NRC ON MIDIAND PIANT FIII STA'IUS AND RESOIUTICN 1:s. = = - n July 18, 1979 -l 3{ 9:00 a.m. jj NBC, Bethesda, Marylarxi ,a F:5 }{$$ 4.= "a !m 1.0 nrrRODUCTIGi (G. Keeley) m M. l:.E 2.0 PRESENT STA'IUS OF SITE INVESTIGATIONS (T. Cboke) liii E:T: 2.1 Meetings with Cbnsultants and Options Discussed (Historical) m... [3 2.2 Investigative Program ~5:} l;;f. A. Boring Program. ' 1:.:i. B. Test Pits .lijf C. Crack Monitoring and Strain Gauges 'WS D. Utilities 35 .si 2.3 ' Settlenent
- s A.
Area Notsi B. Preload C. Instrumentatio'n 3 a 2.4 Recent Revisions A. Deletion of Chemical Grout
- 3 B.
Decision for Site Dewatering 'd .;=: 3.0 REMCDIAL TORK ri PROGRE.SS OR PIA' RED
- =
5 3.1 Diesel Generator Structures (T. Thiruvengadan a 3.2 Service Wacer Pump Structures .> +:: 3.3 Tank Farm s 3.4 Diesel Oil Tanks g 5= 3.5 Underground Facilities ~: M 3.6 Auxiliary Bd1Mkg and EW Valve Pits (C. Gould) 3.7 Liquefaction Potential (S. Afifi) 3.8 Dewatering (R. Icughney) M .a
l s 4.0 NGLYTICAL INVESTIGATICE 4.1 Structural Investigation (T. Johnson) 4.2 SeismibAnalysis (T. Johnson) 4.3 St h_l Mequacy with Faspect to PSAR, FSAR, etc. (T. Johnson) I 4.4 Soils Su::Inary (S. Afifi) i j ,5.0 CONSULTANT'S STATDE27T (R. Peck) s 6.0 SCHEDUIE (T. Cooke and G. Keeley) 6.1 Preload Panoval = 6.2 Auxiliary Building 6.3 Tank Farm i l 6.4 Service Water Building 6.5 Site Dewatering 6.6 overall ITpact 7.D CAUSE INVESTIGATION (P. Martinez) 7.1 Andysic 7.2 Possible Causes 7.3 Mact Prebable Cause D.O QA/QC ASP E (D. Barn) 8.1 Corrective Actions 8.2 Q-list Fill Resunption _9.0 LICENSING ACTIVITES AND CFR1GES 'IO FSAR (G. Keeley) s _. 60 N' , s *,n', c:., e $ \\t. 7 ____u
e +- 1 1 [Nbv/s, Z' / f ' 1, jeu ~ O malun = -..d...- /). ~ a Lw nwusn /wa ' y/T i d e w dle d /Steiv;lt R4 Ow. - M. im=re riua z Becu w Powse coe
- R Ga su-MG
$tM Edle6 W Bec//7M P M c E. c:DAGP i =., 'b4c.o - E. /JomJ Coasumas Po u>c a C o. Dw I?id /%2f/ 4, Ads % c a. R.FER. RAS hkkd. Su Fca.a s co ' poent__WM L lemfet-AuxAaset li! R5Arn/c/ bokJ %%wh a m-a +._- ~ .,,, [ $.'.a Ob$ Oll, D I IT, !~ c : e r h n r <., [es, r, /lm.? - Br> c /. !r l ll ~ / B. z2hn gau - g,,pn Enur J Nsw Andru -/ w._A me 3.,_S A1Fli\\ Pw.lD' /6 (b-6 !$ '$ske.) /u'D C, ' f/-l!Rh Titt2L1ht{ GAD An CoNsahLGs fewEeG Tacum Mr AlfaduLD cediVMAQLAt(ATEL coq u lbdepu a n ne s~7nn= ~ D 4.L_EA VFS NR C /ZE : R lll bc nel H.6,Ilc n necj ree e,.e... : e 0Asu& GEEK-n'2cl71= ~' 'Y z -/ IL_g_Jt3l+cuce/soH y m usiv unapsc/sse C 3ra_g NRc./cA8 J: .. hs;.
- .3;-
Q.. + iif:: o
.4*6W f.f,- 42.~- - e ~ h?!......
- y~.
A >=- A.J. BODS "+ hr+2 m we__ sea uec /kAAw - VLvR C G 5_ L lueensnrw U?clRe m .f... yt...... g Ccat) l<. DAs s e = cur =t - Eni,vrrvsas cing i a __ ONSuMea - 4_
== +- p 6.. m p. .. F.. .i.9... y: 9 P -.we w e-- p e . ~- ;.. O e.g m.e e.= Nohem --- 6 6% N MM 6M ww-" e 4 t.. I. A .e--- se e. - eman as p.gu' -e .=6M .+h5"" 6
- @+.nP##8$'-
- 4&"O*
e 4 g M g,.gie.,. .4 m.p. gym.g 9 um9 @8Nh N GO 8W-**'h*M- $6**$ Sh 6##
- O-"-Od' 46**'"-=
=4.u* p ,qw,9 y e u. =%, w eGWih 4h@W eM=m G'.'s* bN D**W
- .4&
N h ** 6
- '=M*
- '8>*
"6 ^ M-%* M - 64 O ,.4-., _m e.,.-..-- ee e- ..w =ee w .4 - +--* e e. + - as.-
- e=-+
r
- * -*h*
- M*
- N
- -**"h'*
- =****w
== - ** em+e m mim,_, $M-' + e ap+wwe-e.we m i.-
~ e:_. ; .N r o UNITED STATES g 8 NUCLEAR REGULATORY COMMISSION o r y g j WASHINGTON, D. C. 20655 k*.**,/ June 14, 1979 1 2 5 MEMORANDUM FOR: Darl Hood, LPM C . Light Water Reactors Branen No. 4, DPM FROM: Daniel M. Gillen, Geotechnical Engineer Jsdiotechnical Engineering.Section { Geosciences Branch, DSS THRU: Lyman W. Heller, Leader //f Geotechnical Engineering Section Geosciences Branch, DSS
SUBJECT:
MIDLAND SITE VISIT TO INSPECT TEST PIT PROGRAM On Thursday,' June 7, 1979, J. P. Knight, L.. Heller, R. Lipinski, and I visited the Midland 1 & 2 plant site for a general tour of the structures founded on the plant. fill, and an inspection of the test pit program in progress. After a short introductory meeting we accompanied representatives of Bechtel and Consumers Power Company on a tour of the Category I structures to be effected by plant. fill rendial work. These included the diesel generator building, service water pumphouse, auxiliary building railroad bay, auxiliary building control room and electrical penetration area., diesel generator fuel oil storage tanks, and borated water storage tanks. During the afternoon, while J. P. Knight e.nd R. Lipinski were engaged in discussions with Bechtel and Consumer's structural personnel, L. Heller and I were conducted on an inspection cf the test pits in the plant. fill dnd other cpan excavated areas. Three test pits wete observed in various stages of completion (TP #'s 2, 3 and 4). We observed Goldberg, Zoino and Dunnicliff personnel sampling and performing density tests in test pit #4 adjacent to the service water pu'mphouse. We also. visited Goldberg, Zoino and Dunnicliff's on site soils testing facilities. A brief departure meeting was held for coments and questions that had arisen h during the inspection tour. A list of applicant personnel contacted during ? our tour is attached. OM A-Daniel M. Gillen, Geotechnical Engineer Geosciences Branch, DSS l.
Enclosure:
As stated cc: See next page f' Q' & LsuM 2-. 1 f
n. .u y- _m._ i 3 2-Darl Hood cc: w/ enclosure 'J. Knight R. Jackson L. Heller R. Lipinski D. Gillen e em ei 9 e s.. 4
m :: 2: a : =...... -.~.. -. - :.. :.w- . 2. et i.; ' if 6 [ + k.. c List of Contacts-Sechtel:- S. Afifi P. A.- Martinez e A. Boos P. E. Johnson B. Dhar- 'C. Weidner if Consumers Power Company: C. A. Hunt ~ R. M. Wheeler T. C. Cooke D. E. Horn D. Sibbald l l ~. f 4 4 1 5 0 9 9 h - eme&
f' '~{ q,,,,ysg.; yjg.g J(c. g(Q igtg/s@M"OQijdi$ E-C - / n a_.. ~--.--a--~~- . y ;[;jygM;YMWRyn~!i@NQ:9 din $n . YQ ,.)-'- g
- [ *%,
UNITED STATES .b,. 3, 3 - f*. NUCLEAR REGULATORY COMMisslON II-:) r WASHINGTON, D. C. 20556 '[: %,{*. y / JAN 121979 ,.2;}.[, Q ~ DOCKET NOS. 50-329 .. q 50-330 APPLICANT: Consumers Power Company FACILITY: Midland Plant, Units 1 & 2
SUMMARY
OF DECEMBER 4,.978 MEETING ON STRUCTURAL 1 J
SUBJECT:
f Y~ SETTLEMENTS On December 4,1978, the NRC staff met in Midland, Michigan with Consumers Power Company (CPC0), Bechtel Associates, and consultants in geotechnical engineering to discuss excessive settlement of the Diesel Generator (DG) Building and pedestals, and settlement of other ~ seismic Category I structures. These technical discussions followed a site tour on December 3,1978 during which the NRC staff observed ~ each of these structures. Attendees for the tour and technical dis-cussions are listed in Enclosure 1.,is the agenda used during the technical discussion. ~
===1. Background=== Pursuant to 10 CFR 50.55(e), CPC0 notified Region III of the Office of Inspection and Enforcement (I&E) on September 7,1978, that settlement of the Midland DG Building foundation and generator pedestals was greater than expected and that a soils boring program had been started to determine the cause and extent of the problem. An interim status report was provided I&E by CPC0's letter of September 29, 1978. I&E conducted inspections on this r:atter on October 24-27, 1978 and issued inspaction report number 50-329/78-12; 50-230/78-12. 2. History The Bechtel representative identified the Category I structures and the type of material supporting the structure: a. Containment - Glacial Till b. Borated Water Storage Tank - Plant Fill ~ Diesel Generator Building and Pedestal - Plant Ffil c. d. Auxiliary Building - Part Glacial Till & Part Plant Fill Service Water Intake - Glacial Till (Completed portion only) e. - Plant Fill (Small portion yet to be constructed) ll
- m. g po ff=-
- s=" .nn s- <a-~
h }e, Z fs ~ - %gg y -g .y,g _qMyaa;rG 0;jec .gggfg pya
- c os.g::1 a
s 7.Q f:r w " M. i. @S JAN 121979 f 2- .,. n j i MM'
- .4/1 The settlement monitoring program began in June 1978; to date
,9., -Q the measured. settlements are as follows: .;u s$:$. =i Co'ntainment - 1/4" to 5/8" over last 1-1/2 years ..j.y Auxiliary Building - Approximately 1/8" (central portion) .+w..
- 3 / a y.
~: . ~.. _, Service Water Pump House - O to 1/8" .O.~? (d jyE Diesel Generator Building - 3 to 4" since footing was po0 red October 1977 and walls in Spring 1978. ,t The four electrical duct banks rising into the OG Building, and which. extend downward into the glacial till, were ' cut loose to remove the settlement restriction on the north side of the DG Building. When the duct banks were cut loose, settlement on the order of 2" occurred on the north side of the DG Building at a rapid rate. The east wall exhibited rapid settlement (1/8" in one week), but the west wall showed very little subsequent settle-9. ' ment. This indicates that the east wall was being held up by the 7 duct pedestal. .3. Soils Exploration
- d' Bechtel discussed the soil exploration program, including the boring progrim and laboratory testing of the four.dation materials. ___
The conclusion that wcs made by Bechtel is that the material varies acrcss the site in strength prcperties, i.e., unconfined compressive . strength from 000 PSF to 4000 PSF and shear strength from 100 PSF to 2000 PSF. The soils classification ranged from Cl to M1. Bechtel also discussed possible causes based on input from a con-sultant, Dr. R. Peck. Some of these causes were: (1). Variable quality of material used in the plant fill, however, the quality control records do not indicate the variation. (2) Fill may have been placed on the dry side of optimum moisture, and then 'when the water table rose inundating the fill, the material may have become " soft." (3) Initial fill may have been placed satisfactorily but a.fter installing pipc trenches and duct banks, the fill may have e been disturbed. , 't_e-.e e s+ ea4--r te=w4gt e+w es ,.pe t e - eg e oWM mye.s g a nog g %d.tg esimmew ge ='gse, min- -+ ge
- ..f y
o ve n' a 'f., y~' +
Q. ~ m7 w 9..f,
- l%
f?h p? < 3_ JAN 121979 _9 il .b,dj
- 4. --Consultants Perspective nca
@N ' - Dr..R. B. Peck stated the following: WM Gi$ .a. The compacted fill;is comprised mainly of. glacial till and Q;ic/r. was excavated from the cooling pond area. id M d b. E'vidence exists'from the Dutch cone cur.ve that the looser and Q M;4 a softer areas are limited to local zones or lenses. o,- w 5 tD.S c. Water content is higher than at the time the fill was placed.. 4 %j Settlement of the till has been. occurring since original placement of fill, accelerated by increased moisture content d'~< resulting from filling of the discharge cooling pond. Soil l . ' settlement is occurring under its own weight and the added weight of-the building is believed to be insignificant. ~ c, l d. The DG Building would probably not have settled as much if the ~ material had not beeri so wet (moisture content is high).
- ,f:
e. Bearing capacity is not a problem for the footings. . 1.m. f. Short of removing all the fill above the hard glacial till, a "preload" program would be the best approach. The preload e purpose would be to consolidate the fill materials. g. The settlement with the preload would tend to be rapid (a i few weeks to a.few months), h. The preloa'd is a'necessary first step even though other measures might be necessary.
- i. The main unknown is what raight happen to the rate of settleent
,j as the water table rises and saturates the till, t ' 'a ?.
- j. Preloading would occur in early 1979 and the rand used as the surcharge would be removed in mid-1979, c.n N:
Mr. C. J. Dunnicliff of Goldberg, Zoino, Dunnicliff & Associates fi described the instrumentation program to monitor the settlement 'j of the foundation material and structures during the preload,- The purpose of the instrumentation is to determine if the surcharge is doing its job of consolidation and if it is causing any harm to the structures or. utility lines under and around the building, ~ 9 8.1 9, OI L. P %.e e wme. -.- me.w m ey + l* .p - y emm.ew.3 e,-ee m ei we g ) 'l^~ ^ 'h 0[ INN $ @ ' ~ b, u .t-z
- - - m_____ 'T M M.\\ @NsN$93@aMqm,. sjt%pm f w 9&ac?Wivy@9cpygg;jypygygg 5
.y g ggy '7 6 . _ AxN m p
- .<. ~
.s JAN l 1979 ai. -4" . E.,h s
- I a.
Instrumentation for the structure will include optical survey %,dl measurements as well as monitoring of cracks using electrical v.. fi devices. i..ir locations for the e ectr cal devices have been l i - 8J.' chosen; two on the exterior of the east wall of the'DG Building ~ _m and two on the west wall of ba'y number four in the DG Building. A mapping of cracks will be developed. . g i _ 1 b. Foundation monitoring will include devices to measure settlement n'I and pore water pressure. ~A total of 60 anchors will be y ', installed (20 groups of 3 at different elevations). A total of 40 piezameters are to be installed to measure the pore , ater pressure. w The consultants indicated that 6" settlement would not be a surprise and that up to as much as 18" could occur. The preload will be made up of 15 to 20 feet of sand piled in and around the DG Building. No more than a 5-foot differential in the sand. level between bays would be permitted. The NRC questioned the effect of settlement and preloading on the I condensate lines located under the DG Building. Fixed points for the piping, such as the Turbine Building wall, are also of interest for the potential of cantilever effects. Bechtel explained that the 20-inch condensate lines are encased in 24-inch lines surrounded by concrete and resting in well compacted sand. Instrumentation will be included to monitor the condensate lines. l The possibility of cutting the lines loose at the DG Building and 1 the Turbine Building is also being studied. The condensate lines have no safety-related function for the Midland design. 'd The NRC also expressed concern for the effect of settlement on the fuel oil lines under the building. CPC0 stated that re-routing i of lines can be readily accomodated if necessary. This matter is 7. also under review.
- 2. ;;9 -
The NRC Resident Inspector asked for a list of the equipment, with a discussion of the compacting capability and limitations of each, .-x' used for compacting the fill for the DG Building from elevation 618 to 628 feet. Bechtel will provide this information. 9 1 5. Program Status' Bechtel summarized the activities completed, in progress, and planned for the future: i i e il 1 n..., s A' s
,.e gtsfp%q.}.@lgggfpggggyQgg. gig} [~ [i@fj@2hQ %y :vga;;z %yer c7-W* S.'@gg g Mjpl$ 'e
- 19lm g g.:.w g;gy;.q;Qfqg y.;;&
g ww /
- .IW t.
1 ,^ = v. p3 M 7 JAN 121979 m. M...
- c.t. f.
Q:. nW ~ l . 5- ... r
- .- NQf I
= ' ff ] a. Activities Completed . g. ?.!. %; Af;.d .(1 ) Boring program- .... 9. 6[kh, (2) Isolation of the electrical duct banks on the north side 9 o.f the DG Building ,. c.GI b. Activities in Progress (or soon to be initiated)- b'Q ai W:si (1) Foundation settlement monitoring program .J ! c '. l (2) Preload instrumentation program ..) - ~ '.4, (3) Actual preload of the structure and foundation ' ;. ' gj ' .1 (4) Filling the cooling pond to maximum elevation ' ~ ' (Elevation 627) (5) Complete construction of the rest of the DG Buildirig ~ ', .f' structure-u :s ~ c. Activities Planned , [: t. q 7 , $r d (1) After removal of the surcharge, assure contact between t: .A footings and soil foundation material .. s.,i ,"g ,.}.' M '- (i, (2) Verify utilities and structure integrity
- E '
6. Project Schedule i 'J d Bechtel presented the following project schedule information: i a. s_." 1i Construction is 58% completed as of November 1978 Engineering is 80% complete M
- )d Structural concrete is 97% complete Fuel load target date is November 1980
- g.,#./.i Earliest requirement for one diesel generator is January 1980
'ver. ~ fi ) c N,'1 Current completion date for one diesel generator is January 1980 'd latest date for one diesel generator is June 1980 .U :'.d;J r, J l s
- f;,
,,,,~ <1 g g q I ~ E .a, 4 1 [ f, * *.*' "'I** Pq
- y _
.**.g.-. _ _ _ 3 ... 3 ~ g p ^ ~ r. t. 7 ~
- ,w-'q
.t u i .-L>* 'Nl' 2:l:, . ~.,.,,.
ne. 4 - m N . Y A. Am .A & L*G , /: y JAN 121979 y li.: ~ j Bechtel emphasized that the installed instrumentation will show 17,,, 4 1 ,when theEpreload surcharge may be removed and therefore the present % jI 1k schedule is somewhat tentative. Most settlement is predicted to O.g occur rapidly as the area is being preloaded and frequent readings P"4 h will be taken during this period and used as a basis for further .J projections. The' rate of. settlement will decrease thereafter Tb and the total settlement is expected to be reached within a few iiE@j - months. rk i: CPC0 stated that if necessary,-temporary ' diesels could be used-during preoperational testing prior. to fuel _. loading and that 1 .p - this. matter ~is presently-~under study. Wr a$ yd Y A f: -7. Response to Open Items in NRC Inspection Report s< S, $ M 2, U%Q Bechtel addressed the open items included in NRC. inspection report Nos. 50-329/78-12 and 50-330/78-12. CPC0 stated that a-written v.G E %.$l:T -response would be sent to I&E Region III to resolve the conflict vg. -between the FSAR and site implementing procedures: .2.%. J'OR
- a.. Conflict between' FSAR Table 2.514 and Table'2.5-10 regarding c.E r the description of fill material and what was actually used A.O in the random fill: Bechtel stated that this conflict was
- 95@
an oversight and that an FSAR amendment would be issued. J. & The NRC staff stated that any such amendment should addres:: i.p$ both the previous _ and the adjusted entries 'such that the k basis for the previous staff review is not obscured in the ~ ~ ~~ ~ j#pifj3 documentation. T*ijNh S b. Conflict between FSAR Table 2.5-21 and Bechtel Specification @My@N C-210 regarding number of passes for compaction: Bechtel gyQ stated that FSAR Table 2.5-21 is for the embankments for the WM cooling pond dikes. &yJjM gy. c. FSAR Section 3.8.5.5 regarding expected settlement: Bechtel stated that 1/2-inch indicated in the FSAR was a mistake and %:$. E"' Q that the FSAR would be amended to correct this mistake, u-w. eWWW
- d.. Conflict between FSAR Figure 2.5-47 and project drawing y; f.J regarding foundation elevation: Bechtel stated the elevations
- [fg in the FSAR wascalso a mistake and would be corrected.
dm.fj e. Conflict-in Bechtel Specification C-210 regarding compactive Ms.+ ~ %i,i effort: Bechtel stated that Field Change Request C-302 W.D - dated 10/31/75 clarified this conflict and permitted the A "Bechtel Modified Protector" using 20,000 ft-lbs compactive j@b effort rather than the ASTM standard of 56,000 ft-lbs. M sY:l 1h "A
- +p U,b ' 'l
.m _m ,y Q' g".g s q 9-w m p, q: ~.g - s q u,y, h.
- 's.a i.
> + >n s n.~. ,.; -. j
.r 3r k j{(;j & c & & ;= 1 @M % @n H G W FD W Q k,;) y$ TY h a v.@e:WnWK% dig 3+fMq%Q.{ ; FMg i%.WR;WeW sperR wW2 , ;g,$ & & & & f b!if / / >d. _7 JAN 121979 i h' c. f. Conflict between Dames & Moore reconnendation regarding lif t M. g.j ;I, thickness of 6 to 8 inches and the Bechtel specification permitting h .l up to 12 inches: Bechtel stated that the greater depth per-V ij mitted by their specification should not matter because of isp performance' qualification tests. However, the NRC was then i % informed that the test qualifications performed were for Zone 1 hQ clay only,'and that no test qualifications'on the random fill material using 12 inches was performed to qualify such lift &@$,ft 121 d thicknesses. Dr. Peck stated that the thicker the layer, the more differences in compaction through the thickness of
- ,4 @M W fif the layer would occur.
~' g. Tolerance of i 2% in moisture content permitted in.Bechtel ' Y'-7! Specification C-210: Bechtel stated that this tolerance is .q AQ in line with industry practice, /n@a u h@?y Dr. Peck was asked his view on this t 2% tolerance. He p stated that the important question is "t 2% of what material." Since the material used in the. fill was variable, ~the t 2% eQ-y tolerance could cause a problem if the material is not f;d;3 . consistent. q q?]' 6.p' M h. Cracks in the building structure: Bechtel stated that all fc cracks greater than the ACI 318-71 limit would be identified ji % $ ' and repaired after the preload program. "[ M 1. FSAR question 362.2: Bechtel stated that the answer had been _. _ - _ _ }y..yf sent to NRC via FSAR revision 15 in November 1978. .N CPC0 stated that the reply to the inspection report is in process, and that the reply will include copies of all data, slides, and W.i } J q;g: ; drawings presented during this meeting. 7.e In concluding remarks, CPC0 stated its intent to proceed with the }:,g.f preloading program as described during the meeting.
- >. l In its closing comments, the NRC staff stated that the proposed solu-E
'~ ' D. tion is at the <isk of the applicant and that NRC intends to review , (($; and evaluate this matter in accordance with the original compaction g;h-i requirements as set forth in the commitments in the PSAR. The staff J;w d. also stated that while attention to remedial action is important, J determination of the exact cause is also quite important for verifying [-[M$' the adequacy of the remedial action, assessing the extent of the matter AD relative to other structures, and in precluding repetition of such M^~92 matters in the future. YP A kC l ' wj l Darl Hood, PIo.fectManager EG p Light Water Reactors Branch 4 ffp Division of Project Management $$M1
Enclosures:
eyj As stated y 2 >L m,._ g-7 j c ;,m.- x T4,. ,, - g
~ .~ ~5} Y 5kEffY hkhh !E ' +-h+ ?[ hhh. 1 -;::sww - a ,,;sw -._,
- gi;t.-% M}afLyg;p M jj k g j g%.<,Q wi -..a e,
s y VA bi ? M@M b s. JAN 121979 EM tonsumers Power Company Mce t:.y%. y :w ! 2' ccs: N hQ Michael I. Miller, Esq. Isham, Lincoln & Beale [h[y?-1 Suite 4200 i One First Nat,ional Plaza ? 4 Chicago, Illinois 60670 %42 (.ph$ij; Judd L. Bacon, Esq. Consumers Power Company M[g; 212 West Michigan Avenue- @@CLjd -Jackson, Michigan 49201 .r%u@$,, g .YTg5; Mr. Paul A. Perry f f,% Secretary '^ B.yM.51 Consumers Power Company ,3cy G 212 W. Michigan Avenue ' iWis Jackson, Michigan 49201 c $ 7( 3 fMsit Myron M. Cherry, Esq. sfi@Njl ';I Une IBM Plaza j Chicago, Illinois 60611 .n.. ~jtjY
- g?-
. _ ~ _ ~ Mary Sinelair 5711 Summerset Drive M 2]4 Midland, Michigan 48640 'y;. 1 w,.- m [jl Frank J. Kelley, Esq. 4 - e ..<J Attorney General M ]. % State of Michigan Environmental ~ Protection Division 720 Law Building Lansing, Michigan 48913 1., .l
- w...
tE ' "1 Mr. Windell Marshall f, Route 10 , f,, '. m J.i Midland, Michigan 48640 .-'n' n.. ;... .N.. ' Mr. S. H. Howell ../ w $ yh % x Vice President
- \\ f.
Consumers Power Company .4 pM.$ 212 West Michigan Avenue fFf.if:y Jackson, Michigan 49201
- n. _. a.,.,. ;
z.-% qaq6 3 'r%dD
- n un-Ul t,,
g ,. +' 4;N... n. t.[ s.Ii .'n ;) e ? "o. .o_ ,' :. 4. - ?D,
- l
~ep l_d.] ll * ='q _,."^'s
- '-~""*'"
' ' L - .7,... -r r. v _ } [ $,.Q } . ' '.~.,, ~..y.3;,-n,e;u.; ,.s ~$' .[ 'fi' [' ,'g ; ,.4- ~ ,,g, y
- ~
_,g:.*~;. i 3.,. u. 4 t
s, e s ~ ' rJ;'.}y _{ %r. A. f ' dgg,.,, {, *.
- p
,V i, K' f d.'I + -/.k [.h ' s G 4%. .7 y j4..,,,,. g., L], ; ; j i' r { p.? * ~ * - . ? - 2'j -Q [ ' -[.7 p N'. ? 6,'. ? -Q ' - s. ,g ,,$ (, i. ',. ' g.,*
- ., =.
h ;i l * !.1,.,q/g;,'.,. '.,C.*. .t (Y N $$ ? ^ _ :' :h_ _ ~4' *f9k 5^YYY$n.~ k!S[ hb i) 1 '7
- ,, e.
7, ; _'NY$ ?. Z* Y?s '~ h Jh'.
- ?.'QA hf :.*
){243Mkl K2G f'."'k '.'~1 !E AWl.3,'E e -
- D.-l 3
ENCLOSURE 1 yd HIis%4j:,+ $ JAN 121979 7,3t ' yip - ATTENDEES DECEMBER 4, 1978 MEETING mm V M a.y+ l S -rac $NAD P. A. Martinez, Bechtel +8WN Karl Wiedner, Bechtel y-S. S. Afifi, Bechtel z$w$$d-R. B. Peck, Bechtel Consultant $U$i '
- W. R. Ferris,'Bechtel nifShj '
M. O. Rothwell, Bechtel w ~.. qw1 l D. B. Miller, CPC0 - Project J.-P. Betts, Bechtel 9 W@M.w.~ El W. L. Barclay, Bechtel 6/Dq < A. J. Boos, Bechtel V: :s M G. L. Richardson, Bechtel ,Py.$;' D. E. Horn, CPC0 - QA S '( C W. R. Bird, CPCO-QA '* R. M. Wheeler, CPC0 - PM0 c s ~'
- C. A. Hunt, CPC0 - Engineering Services
,,'. ' f./ D. E. Sibbald, CPC0 Project ~'-ti John Dunnicliff, Bechtel Consultant Austin Marshall, Bechtel - Geotech
- f. ~ '
Y. K. Lin, Bechtel - Geotech ' 4 i-I
- 8. C. McConnel, Gechtel - Geotech
~ B. Dhar, Bechtel N. Swanberg, Bechtel ,g'. Darl Hood, NRC LPM , 'f Gene Gallagher, NRC Region III (I&E) Dann.1 Gillen, NRC/NRC Geosciences F't! Lyman Hiller, NRC/NRR Geosciences Ronald Cook, NRC Resident Inspector
- j i
- ~
- Present during both the 12/3/78 site tour and the 12/4/78 meeting.
0 +" m....., T. ,i t;, {
- v?
7 3'; . A.*s } ~.l.: s 4
- l. '..
t - t r,
- -_.1
,,.'-b g _. .1. e- ,w. __._._.._7._,-.q,-,._.---- .t 4 ~* d 4 9 5 g e F
.,n. c..W.,YQ:,.YPMyQG %F:,4L?:::n+gs&y.9ggn$j@f 4 ci' }$ik<fN% ~h $iik yJ Q R y$l6pf.%f*Q ph &r-l:nRO-s m::w g < m a g g= r_n n,r$-:%l% Q h+
- . Jf9y q2a@yL.;; Ml%3:4 a i g ;;n q w qc m. g : W m; 3~>]NM
.L;bn; . :y. gmAAGNn=: m; y~ yJ En sle s u r e 2
- %l g
%T.m.".. v p y.
- 7',/;gj 7 p.
SUBJECT:
CPCo. Midland Plant Units 1 '& 2 Diesel Generator Building g i 3 gg7g g,
- . w.
' j .+9
- I.hp-p
-Meeting with NRC at Midland .m... d s; $ m,h). hCy DATE:. December 4,-1978 p$4W !w %;;r*4 E AGENDA -:1:!pb?
- 9 wq
- %
d[jd, Introduction by CPCo ~ I. Ki%;j M II. History by Bechtel (N; Swanberg) .M... % "W.' 2 q Jg; a'. - Plant description-e,,.',j b. Settlement monitoring' program c. Brief history of site fill placement '.j;Q. M3 d. Settlement of Category 1 structure Settlement of diesel generator building and pedestals ..'6 - -' e. in' f. Review settlement data and drawings (SK-C-620/623) 7;lW g. Consultants-4.r ~
- l III.
Soil Exploration by Bechtel (S. Afif1) - : q/ - :,6 a. Soil borings ~ b. Dutch conc penetrations 7" c. Laboratory tests ? d. Possible causes m!, i,f N'K *~ IV. Consultant's Recommendation by Dr. R.B. Peck and ~ ~ g M C.J. Dunnicliff C-1 a. Preload b. Instrumentation yl
- Status report by Bechtel (B.C. McConnell)
V. a. Activities completed b. Activities in progress c. Activities planned for future 'y 1) Corrective action 2) FSAR conformance ~ JQ R jd rm VI. Schedule by Bechtel (P. Martinez) .-; e, 7 M g. 1 a. Overall project { ' b. Impact at project schedule "iJ c. Schedule for remedial measures .? ? ..'S 4 n u ?'s-ga 4 O ..d k .e 1. ; ,y , l
- e.
-- a A myp ,, Ay e
- 4. abce est * -.___
p4 e=, y mik ,[c g ' *
- z. J, i,j;?q'gg.
t
- **
- g8 de6g we* ***G 4p
'U_' 4 .a .;.]. t : p;. ' ' s
s-r- ~ ~ y .c. h k.wa., ,j +- g, p.,.c_. e, s. J, s 4 'y .g ..a =.. a. _ - - ~ 3 .a ,. fW kb SDAS -N.4,x,jg s-c.w - i5 W $1 VII. Responses to open items in NRC Inspector's report f 2,fIfh .(' dated 11/17/78 by Bechtel (B. Dhar) Jg 121979 jjjg.I c~-w ,g .f)k Responses to Gallaghar's concerns: a. DJM.k. 4. 1) Conflict between FSAR Table 2.5-14 and i @e,g Table 2.5-10 regarding fill materini ' inky description $;fg 2) Conflict between FSAR Table 2.5-21 and M.it d ; Specification C-210 regarding required .[Sh-R,1 number of passes'for compaction V 3) FSAR Section 3.8.5.5 - expected settlement f.?:g$p I d 4) Conflict between FSAR Figure 2.5-47 and ^5c;fl,I ;l project drawing regarding foundation /.:ygi., elevation / y} i,] 5) Conflict in Specification C-210 regarding
- Ti 3'.9 d compactive effort in test method W%,.x5, a.
6) Conflict between consultant's recommendation . f.4 and Specification C-210 regarding lift iPJ a, M. thickness W. 'q) 7) i 2% tolerance in moisture content permitted i e ]MW .in Specification C-210 Z:f ).j 1 8) Cracks in;the building structure 'fl;.y; b. FSAR Question 362.2 (Section 2.5.4.5.1) r.o < 1, r .t.7 I ' 6 hl VIII. Closing Comments by CPCo
- ..g.v
- 1
<..,.g g,. 1< d,, F .v I !,l i .s ;.djj p. .} 4 .4 , n., ,.:. l '. r. .d 1 '.k. I6 e y S .. f 6 ,a f. + x s 6 ,) 1 . ? c... * .&.9 i -'Y$/p, p y;.4 s t 0l \\,, oo,-e*=w-y 'l .Y s ],- -~
- ?_.y p..y4Q)t, y.
4" .i. h g
.=a p -e fuge ay /ym3. ~ + ./ ' f g h &- MEMO TO FILE FROM: D.' Hood, Project Manager, Light Water Reactors Branch No. 4, DPM Z l* c y, ~
SUBJECT:
INTERNAL MEETING ON STATUS '0F MIDLAND SOILS SETTLEMENT On August 16, 1979, members of NRR, I&E Headquarters and OELD met to discuss l .J 4 - the status of the staff's review of the soils settlement matter at'the Midland site. The purpose was to determine the status of the staff's decision pursuant s. a l . to 10 CFR 50.54f (which is applicable to constructiorp, permits by 10 CFR 50.55(c).) The principal backg,round documents to date are liste5 in Enclosure 1. Meeting s attendees are listed.in Enclosure 2. l* Mr. Knight rep.orted that the princioal technical solutions proposed by the ap@Qr._the_majnr_s.ttuctures_ app. ears to be basically sound such that. properly implemented, they can be expected to provide for adequate structural foundation support. He,.not.ed., however, that certain details of the applicant's _ reply were, not sufficient and further information will be required from the applicant. e For example, the details of the applicant's load combination calculations and stress limits applicable to differential settlement, NRR's need for a more quantitative assessment to determine that nozzle loads transmitted from settled pipes to the attached valves, pumps, tanks, etc will remain within ASME Code allowables, and a more thorough monitoring program to follow actual performance during operation. These findings and further requests are being documented and will be completed in late August. Messrs Haass and Gilray of QAB noted that some instances of poor performance in QA areas revealed in the I&E investigation report indicates that additional QA measures beyond those typically imposed by the NRC may be warranted. QAB's review is in its final stages of documentation and should be. completed before the end of August. a va v, m,p coa > 2., 6 .. + = a u
- .a.
ww. - g3. - a
- .4
= g u \\; . AUG 241979 1 Mr.Thornburg noted I&E is continuing its review of the performance aspects of the QA' program and considering the soili settlement matter in relation to the y
- i reports of QA deficiencies in other areas. Mr. Thornburg anticipates that I&E
-will reach'its coriciusions by mid-September 1979. t. OELD referenced a Memorandum and Order from ASLB dated August 2,1979 which asks for clarification of the staff's position rega hing consideration of the diesel generator building settlement issue. The board cannot detennine from the staff's response whether the staff simply prefers not to issue a partial {, SER or whether there are other considerations making early consideration of 'this issue impossible or impractical. Mr. Omstead will prepare a reply clarifying -the staff's DES schedule and explaining why isolation of the DG building issue is not practical. Mr. Rubenstein described the approach which DPM will take in arriving at an NRC position on the technical qualification findings for the SER. The approach is that defined in a' W. Haass memo dated 12/15/78, which calls for inputs from QAB,I&E,D0RandDPM. Mr. Vassallo emphasized the need for timely decisions to be reached by the staff and for similar status meetings in the near future, p Ng> D. Hood ,,,e e,
,w m
p. .~., wn,, .+ o.
f-: -a_-. u { ENCLOSURE'1 BACKGROUND DOCUMENTATION Background Documentation relevant 'to NRR's '1,0 CFR 50.54(f) requests dated March 21,1979 include the following: The applicant's reply da.ted April 24, 1979,.was revised May.31,1979 (revision 1),' and July 9,1979 (revision 2). Further infonnation was supplied by the applicant during meetings attended by both I&E and NRR on March 5 and July 18, 1979. In addition, certain infor-j) ~ mation was requested by NRR technical branches as pgt of the FSAR review j' prior to issuance 6f the 10 CFR 50.54(f) requests and are replied to through FSAR amendments. Site visits by NRR staff to observe settlement were made March 6 and June 7,1979, and December 3',1978. NRR participation with I&E g. results from a' Transfer of Lead Responsibility which was distributed to R' r. technical review branches as part of a technical assistance request dated ~ November 27, 1978. B'ackground documentation directed to I&E includes a 50.55(e) notification by ~ the applicant dated September 29, 1978, for which six interim reports have been issued to date'(November 7, 1978; December 21, 1978; January 5,1979; February 23, 1979; April 30, 1979; and June 25,1979). I&E has conducted a preliminary investigation and has documented its summary findings, along with the applicant's discussion of these findings, in a letter to the applicant dated March 15, 1979. Enforcement actions due to potential material-false statements in the FSAR as may be applicable to some of these I&E findings are presently under internal review, assisted by NRR staff as appropriate. t .a .n. ,.,...... ~. _.
3+ -. :. : ... -.a
- , =..
- - ~ : -.. -
-:t ~ '.Q ' 4. ,l ' ENCLOSURE 2 .h '- 1 I. ATTENDEES i 1 .,..i.j 1 J. Knight ci D. Skovholt j W. Haass s 1 D. Vassallo - , S. Varga.- L. Rubenstein r ~ D. Hood ~ H. Thornburg R. Shawnaker R..Backman 4-W. Omstead
- . R. Liebennan '
J. Gilray J. Spraul 4 's e 6 8 s 4 *** 5 9 4 b. F G h 9 4 / e e -M W t
e; u-x
- s. y. n,
- W ;gzw y.rp;,1
- p g g q,iV'j
- v 4 /pf Q,3...y<-.j:4..:.. .-w ..,3[g.\\s o[ QII E h.
- N. 'O-f.N2k.,.,hk"?,3N y
o 1 m. .c,
- y mr!? W 9 w o M vaa V';wxww.s W wx4py@Jry@q)y.;d,m..' h 1 %-
x s e ^ k ' ^ uz... q. ggj.3.s;R;g%.gg gmpt.m,-scQp:n - yJ . WE; (^,- g;9: q.y,~ /L y y.M W.E e ye;g
- u....,. p,/., m.m.,w e..e r,. mr... j..m. ~
p4.s, a,M.w,n..m.gy. mte..,.mn.,nw. ~. 4. x.. m%m....n -,p
- ~
.2 n; W w.,,- m. r s.w. :.n. c. . e 2 s w ~ ...4, c ... m.
- s.
u. -k :'n -,n. ~a ;..m.e. r y! m
- 1.
s s _ ~ y., e,q y - s,;.a s.o.? -., y r, e, 4 W-%y ay ygg&t'Q.g,.4, x:* *f-?,\\._ .pn et y 3, ',~; - n i ' :.". y,
- a
.n .~,f.,..,r, *2.s -,, x f -..q g,g.3. m +x.pg.w, ...x %w W. t: 's. ;', _ n-2 >.
- L..-.. --
. - + -. .. _ ~.?u q :~. y 3. f .3 .. -..~. .,.q, .. ~. .$,...,n.f.. gr. -g.. n.g,,.~%, %
- 3.. g ~. ;.
s. ,,. o.a .p. d. f. y ~s . *l. aQ ' }$ -.." " f ', ., ~ u ,e .. f.. ~ ;:g.. pyc,.,.g4.. s ~. M.e.~ m,4~ * ' ~ , ;- :: 1 40.hL k-{Q. .~ .s - ~ CO e .~~ u. : & 7:Cs.f% 7 ' '.\\ q A-d-i. ' li gg._k.__H.;. ban _ ~ A.s. W Q -e ,s .u W ;a,Rf ,c. ~ .;.,r }&~.., s.. n.y.,t_ - : p,.- s. -pw.c ,..4 .v - -,-., w -5. ;s* ~."( p? 3 i ? + w w.- } - i
- w 4 Eh
' O w w. sy ~ ~ ~ $ ~ A y '- / jyQQ ... w
- -*--*--*W
_ w e-e -.. =.i. e g .w, gum. e m. I ,3%jij 'h tg J w a g- .'y O".f5.. s %..& s u --2 0 _'..p ._...e 0. '.- ~ Q &.j -
- r g, _. -,., _,...... _. _.
__..=_.. _._. = %= ,.ep 4, - h g). t. 1-t A.c'.,Q & wrM m. m* - e,- x . f FI+)
- M
. ~ s w _ - ), E.. uM. 04._ _ M.MAAdq,)AA.., pyys .s.~,,. q g: . w Y, $. ^ -Q ~
- 7~
,a L w ... s. n.g Y.,!.h f hh C' \\ 's 9 1, J d 2 4 %,,, + ~.,.,b* -f* D' r.
- .u
,e ,..ufg"e es 4 4-w g go.. /3L M 3 % U2 0 ~ m .\\.,.,,. e e
- =
e-s y .( ..7 t .... g. ' / _ Q,,, 3 a ,w ....ee. .-e.e.-e.*.--a.ee.-e.i.e.-.--me. w..,,.... e e e u -e e- .* gone d w .e3 6 Fe-' W' W.4.'"*'*'b-- '
- M*
Se eeW.=eg,.-.-e .-.*-e..+
- f
=.* s
- ~.
om.- +.p-w-. .9 ..g...y%, w.,,. .mo
- e O
4 e -4..e..-.. em.e,..- 4 -J s ._..._....m_.m,. W . g e,e.-a-,4 _.e .e s.. w. e wy,-..-~.. .,.,,..-.-...,.-.n-r . - - - -.... ~ N p em =. w.. + =e= m g.* w+.e.-e.4.=+ e.w.=-+-.e-mw.e.e-..--.a , j/ t / P ww .i-e .+ ..,--e.--. ..e..-w .w +..e.-..gf.m. m.....a>m e .==.+ep. _ em me.e. 4-P e.,e 4 m. - h..-......-........~..-..-.-.~..,ee..-e._- e m;.. r s~. w w 6}}