ML19261B251
| ML19261B251 | |
| Person / Time | |
|---|---|
| Site: | West Valley Demonstration Project |
| Issue date: | 01/31/1979 |
| From: | Haughney C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Rouse L NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 7902150103 | |
| Download: ML19261B251 (15) | |
Text
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TESa j9 UNITED STATES y '-
-'4 NUCLEAR REGULATORY COMMISSION 3J
- 'I WASHINGTON, D. C. 20555 gy
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JAN 31 8 Docket No. 50-201 MEMORANDUM FOR: Leland C. Rouse, Acting Chief Fuel Reprocessing and Recycle Branch Division cf Fuel Cycle and Material Safety FROM:
Charles J.
"ghney Fuel Reproc
.ng and Recycle Branch Division of Cycle and Material Safety LICENSEE:
Nuclear Fuel Services, Inc. (NFS)
FACILITY:
Western New York Nuclear Service SWar West Valley, New York
[4IHIS DOCUMENT CON 9 POOR QUAUTY PAGES
SUBJECT:
MEETING
SUMMARY
2
Purpose:
To discuss the progress of NF' efforts to process technical data useful for future decontamination and decommissioning of the West Valley facility and to discuss the present status of NFS efforts to investigate the 8-D2 pan defect.
Place and Date:
Nuclear Regulatory Commission (NRC), Office of Nuclear Material Safety and Safeguards, Silver Spring, MD; January 9,1979
Participants:
Please see attached list.
Reference Index of NFS Facility Design Data:
An index for plant area 8, Liquid Waste Storage, had previously been provioed at our meeting on July 21, 1978.
I had noticed that some of the drawings that were being used to investigate the 8-D2 pan defect had not been listed on that index. During this meeting, I provided a list of those drawings to NFS; a copy of this list is attached. Since Mr. C. Seitter, the NFS Quality Assurance Supervisor who has been developing the plant area indices, was unable to attend this meeting, the explanation for the absence of these drawings from the area 8 index was not available. Subsequently, Mr. W. Oldham, the NFS plant manager, telephoned me to explain that the structural, electrical, piping layout and instrumentation drawings were intended to be indexed later under portions of plant area 15, common areas.
In addition, 7902150 /03
Leland. C. Rouse JAN 3 1 1973 after completion of all indices, consideration will be given to listing particular drawings in more than one plant area index.
Report of Decontamination History:
Sections of the draft decontamination history report for the Vessel Off-Gas and Dissolver Off-Gas systems have been developed.
The uranium and plutonium product purification systems are the only remaining sections of the draft report describing vessel and system decontamination. Subsequent efforts will be expended to develop the history of decontaminating plant cell surfaces.
Discussion of 8D-2 Pan Defect:
The remaining portion of the meeting was spent in discussing the present status of the investigation of the defect in the 8D-2 pan.
The following information concer..ing the defect was discussed during the meeting:
1.
Investigation of the specification for the sieve size for the pea gravel indicates the size should range from approximately 0.1 inches to 0.2 inches.
2.
The temperature of the water that was added to the pan to conduct the test was between 45 and 50 F.
This water was added at the approximate rate of 20 gallons per minute through a Badger water meter.
3.
Review of documentation concerning post-construction and pre-acceptance testing is still in progress, but at this time there is no documented evidence to indicate that a standing water operational test had been conducted on the pan in a manner that would test the integrity of the pan. There is some indicatfor.
that the pan pump was operationally tested in April 1966.
However, there is no indication as to how much water was
.ded to the pan during this test; nor is there any documentati 7 of the water level reading in the vault or the pan at the time of this test.
The search of the documentation that pertains to testing of the waste storage system is still in progress.
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AN 31579 Leland C. Rouse 4.
I provided two inspection reports dated May 1,1964 and April 20, 1964. These reports were from the construction phase of the project and discussed the radiography of field fabricated welds for the waste tank pans. Copies of these reports are attached.
5.
During the meeting, we discussed the floating incident and its possible contribution to stress in the pan. At this time, there is no evidence to indicate whether or not the floating incident could have either caused or contributed to the pan defect.
6.
The possiblity that accelerated local corrosion could have caused the pan defect was a'so discussed. There is no evidence, at this time, to indicate that conditions for this accelerated local corrosion have been present in 80-2.
Nonetheless, that phenomena remains a possible cause of the defect. NFS stated that they lack the expertise to determine whether or not accelerated local corrosion could have caused this defect.
7.
In response to a question about the stability of the pan and vault water levels over the past few weeks, NFS stated that the pan and vault water levels had been decreasing due to evaporation.
Both pan and vault levels have dropped about 3-1/2 inches over the past month.
In addition, the water levels have now dropped to the point where a sample of the pan vault water can no longer be obtained. However, the last sample that was obtained indicated
'ackground amounts of radioactivity.
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M 01 E Leland C. Rouse
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8.
The NFS plans and preparations to enter the 8D-1 annular space are in progress; and, weather permitting, the entry could possible take place next week. Mock-ups have been created in order to rehearse inspection techniques to be used in the narrow space at the bottom of the pan between the pan and the pearlite annular ski rt. During the entry, attempts will be made to inspect the exterior surface of the tank and pan and the interior surface of the vault. Also, particular ' effort will be made to detemine the method of fabricating the semi-circular holes in the bottom of the pearlite annular skirt. At the time of this meeting, since the entry into the 8D-1 annulus has not yet been made, the likelihood of success in accomplishing any of these items is unknown.
9.
The investigation of the availability of remote inspection equip-ment that could be used in the 8D-2 annular space is still in progress. At this time, one vendor of fiber optics and boroscopic equipment has been contacted. This particular vendor does not have equipment of sufficient length to conduct a meaningful inspection of the 8D-2 annulus. Longer equipment is anticipated to be available from this firm in March. However, even this longer fiber optics equipment would be able to inspect only a small portion of the circumference of the 8D-2 annulus.
- 10. Upgraded instrumentation has been installed in 8D-2 pan and vault.
The level instrument for 8D-2 pan (8LR-5) consists of the stain-less probe (adjacent to the pan pump) which is connected to a Taylor transmitter and level recorder. The level instrument probe for 80-2 vault (8LR-15) is a copper tube extended to the bottom of the vault (inside old 8LI-15 tube) and is connected to a Taylor transmitter and level recorder. Both of these new instruments are wired to the alarm annunciating panel board in the Waste Tank Farm shelter.
Leland C. Rouse JAN 311979 11 Preparations to conduct an operational test of the 8G-2 waste transfer pump have been proceeding. The recirculation piping to 8D-1 has been installed. The 8G-2 pump is installed to 8D-1. An enclosure to protect the 8G-2 motor from the weather has been fabricated and will next be installed over the pump and motor. Final electrical and mechanical hookups have yet to be made.
It is anticipated that this test should be completed by the end of January.
- 12. NFS will provide their report of the status of the testing and investigation of the 80-2 pan defect in their quarterly operating report, which is due to be submitted by January 30, 1979.
Next Meeting:
The next meeting is tentatively scheduled for 1:30 p.m., Thursday, FLeuary 15, 1979 at the NRC offices in Silver Spring, Maryland.
1 Charles J. Haughney Fuel Reprocessing and Recycle Branch Division of Fuel Cycle and Material Safety
Enclosures:
1.
Attendee list 2.
Inspection Reports dtd May 1,1964 and April 20, 1964
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t NRC/NFS/NYSERDA MEETING January 9,1979
Participants:
Name Organization C. J. Haughney NRC-FCRR L. C. Rouse NRC-FCRR T. K. DeBoer NYSERDA A. T. Clark NRC-FCRR James R. Clark NFS W. A. Oldham NFS Neil J. Newman NFS A. Abriss NRC-WM S. A. Treby NRC-0 ELD Observers:
Madonna E. Krug NRC-WMGT K. Crofford EPA
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DRAWINGS NOT ON THE AREA 8 INDEX Drawing No.
8A M 1 WTF Shelter, Concrete Blk. Plan & Elev.
BA Q 7 WTF Shelter, Foundation Plan l
8A L 1 80 1 & 2 Piping Arrangement Plans 8AL2 801 & 2 Piping Arrangement Plans 8A L 3 801 & 2 Vault Roof' Penetrations 8A L 5 WTF Piping Arrangement Details BA L 7 Waste Tank Piping Arrangement Details 8A L 9 WTF Condenser Piping Arrangements 8A L 16 8D 1 & 2 Vault Penetration Pipe Sleeves 8B L 4 Water Injection System Details 8B L 6 8D 1 & 2 Vault Penetrations 8B L 14 Aux. Piping for 8 G-1 Pump 15 RJ 23 WTF Instrument Panel Arrangement 30A P 32 Electrical Prints 30A P 13 Electrical Prints 8A J 2 WTF Instrument Location Plan 8A J 3 WTF control Panel Addition 8B Q 6 8E-1 & 1A Foundation Plan 8A M 2 80 3 & 4 Vault, Plan & Details for Metal Liner Inserts 8A M 3 WTF Shelter, Sections & Details BA Q 9 8D 3 & 4 Vault; Plan, Sections and Details 1
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U. S. Atomic Energy Maalan Region I
. Division of Compliance TITIE: 11ucioar Fuel Carvices, Incorporated
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DATE: May 1, 1964 constructios Parmit CPC37-2 Docket No. 50-201 Date of visit: April 23, 1964 GIk-r NY:. Willis' G.'Browne7 tispectioni Sidicialistf (CriNEsMNNW?*'WU#MI * *" 4 supeggy
!!. U. Crochar of Co::pliance !!aadq2arters and W. C. Browne of Resion I, Division of Co:aplimes, inspected the BFS construction site at the Destoza New York asclear Center near Springville, Tew York, en April 23, 1964.
Purpose of the visit was to observe construction progrese ad --*dne-Ne, Crockar wiC Ge IIFS facilities.
r Construction progress since the last visit has beca' delayed k rainy unachar -
and ca.}or prosress had only been made in the pouring of concreta and in fabrication of the wasta tanks.
It was observed that concrets work had progreseod noticambly Cnce the last inspection. Forts have bcen crected for first floor walls of the chentical procces call. Undernrocad piping ad conduit for the utility building has boca insts11cd and ficor Icvol ccscreto pours ars daoc.c ready to start.
The structural steel for the fact receiving ad acorage has not changed apprecichly, since the 100-ton cr:::cs czast be installed before the ecd secel
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recalved ca sita. Tak fabrication is meted to start about the first of Itay.
ESTAlla Parsons Contacted Dr. Walton A. Podger, Plant Manager Bill 01dha:3, Production Sunerintendant George Dymr.sel, Intarim Field Enginaar Bob Pratt, Supervisor of Fabrication and Assecbly Joe Markley, Hew York Atemic 'Jaaaarch ed Development Antharity (Coatima<Q i
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sociaar reat sortices, Inc.
-2 May 1, 1964 t
Bill Eatzlaff, Chicago Bridge ad Iron Works, Velding and Fabr4*ir=
Foreman IIcrrison !!arper,1:elding Supervisor for Chicago 3 ridge ad Iron Works, who inspects the radio 5rgby film.
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i"".~:SM?*b.'"Cf%5%.1.E~.?C*%*k"*mW' n Since the inspectors' last visit, the followins organisational chanssa in IGS organization have been nada: Dr. Walton A. Rod::;sr has repinced Les Landran as Itasacer of the 123 Epent Fuel Processing Plant; tir. Willicsa '-- -~~
01dham is Pro 6 M im.Superine=*tane and reporta to Dr. Bodger.
I cntatories N orved Waste (VII.a.1
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The veldins tecimiwa ased in fabricacice of the pane that go under the waste tanks were observed. The formed shect-sectione of iron place that..__.
are shipped to the sita are welded tossther in thra; steps. After tuo plates have been butted to:acher, they are tack-welded to hold thaza in place. When all of the sheets have been assembled in the desired pattern, the crack betuoen plates is band.valded to a depth about 2/3 of the L
plate thickness. For horizontal velds, a mtomatic welder is then used to mais a weld approvNeely 1-inch vida, under a deposit of W50 Linda
" sand." The " sand' is actually a grcaulated carbide which excludes.
oxygen from the hot unid and leaves a s=ooth, scar-free veldad surface.
The automatic walder ** cuts out" ths oright bead.mald sad tack-weld material as it lays down the new band. After tha automatic told has boca made on one side, tha welded sectiona era turne.d over and an autocetic weld-bead is laid from the opposite side. The second automatic ucld cuts into the firce wold made ou the other side, to give complete bonding of the two velds.
The veldias rod which is being used is called Jot-weld III-70 (Lin=oin).
Sec use moicture can cause poronity end voids in a weld,every p m caution is uced for keeping the veiding rod dry. The Jet-veld rods are received in approxinstely.ono-gs11on scaled..cenentnnrs,.and whenever a container is opened. ths rod that is not used inoadistoly, is placed in a drying even to keep it dry until the red can be used by the voldors.
All tank welds are to be given 1007. X-ray inspection. Any doubt about the quality of a wold requires that the material be " cut out" and replaced with a satisfactory usid. Between 4000 and 4500 radiogr..phs will be taken of velds in the two vaste tanks 8-D-1 and 8-D-2.
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Ikaclear Fust Services Inc. May 1, 1964
}iorth Acaric:n Services (AEC License No. 29-8122-1 and New York License
!b. 27-272-1010) to doins the radiogrgby. At the titze of the inspec-tion, th=y vera rcdiogr:phing the brMe weld of the 8-D-2 pan. Each tank paa is divided inco six sections, so that ecch section is 11the enough to -in rigid while it is lowrod into the tank vault by a nobile crane.
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All f:brication velds nada on a section are radiocrsphed before the section is locared into the vault. Welds for.toining tha sections co-gether are made in the vault and cannot easily ha checked by radiossghy,
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so only welds betwes sections are radiograpbod after the sections are in the vault.
The pan for waste tank 8-0-1 has been placed in the concrete tank vault and is supported about three feet above the vault floor by sboring.
All but tw of the section wlds have boca coonloted. All w ids on the pan for 8-D-1 wre checked visually and speared to be good continuocs welds with no obvious surfcca 1:nperfections. The 8-D-2 pas (fa six secticus).
was lyina on the ground near the 8-0-2 vanit. All volds that had been
=arta vers visually inspected, and it appeared that the welds vara all sound com f m e wolds.
e It was noted thct the horizontal paa velds had been made by the cuto:natic velding -Mna, but that vertical welds had beca r.mde mana-ally. The vertical wido qpeared to have three welding beads for each joint. The "knuckl.a wids" uera also dcas n===11y.
11arrison Earper is a Veldin:: Supervisor who does radiotraphic fil:s inspection for the Chice,o.Brids;:s sad Iron Corks.. Each filu strip.that. s.
is delivered to hi:s is checked for proper overlap, flim picture dcasity, cad voids or other imperfections in the velds.
Itis cualysis of each film strip is entered in a log book which vos exc:ni=ed by W. C. :3ro.co. The log book aboved his ennlysis of all velds in the pas for the 8-D-1 veste cenk cad for sons of the velds on ths 8-D-2 p:n. Ilia code for the analynis of filsa fro:a the radiographs uma as follows:
(1) o.k. cocus that tha wid is satisfactory cad does not ematain any 1:aperfection greater than 1/4-inch in leasth.
(2) Res seans that cho radiograph saast be retaken.
(3) Rep smans that the wald was unsatisfactory and needs repair.
(continued)
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Nuclear Feel Services, Inc.
=4 May 1, 1964 (4) Rap followed by o.k. neans that the repair has been complated and tha wid is now satisfactory.
An additional record of radiographs is kept on a drmrtas of the paa M11ch is called the "as-built" record. Tha "as-built" drawing of tha pan contains dots wttich indicata the location of wid defects. A dot MM-MMIwith an % on either sida of it (17%) means that the defect has beam'WM.
repaired.
From the los book and the "as-built" record,'a vetkly repre is prepared in gedruplicats, one copy of which soes to th3 Deadquarters Radiography Inspector of the fMev o Bridge rod Irca Works, along with the film strips.
If the Headquarters Inspector's analysis of the film strips coheums with that of the field inspector, a copy of the weekly report is signed by the Headquarters Inspector and is returned to the field inspector. Differ-ecces in interpretations are discussed and resolved before the.y.i
. can be approved.
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The film strips from the radiography of soma "B" of the F-2-skirt and tw films frcs sama "C" of the P-2-skirt wra e-
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A fila density guide usa used for deter =inin5 uhather the film density lay between 1.3 and 1.75. In the caso of a pictura for sean "C" (3-4), the film density was approximately 2.16 so it was necessary to have the pictura retaken.
The pictures on ses:a '3" all showed satisfactory fils density and weld 92811t'/*
l The tank bottom construction shown on drawing 4413-aid-3. rev. 4. shows j
that there are three inches of pea gravel on ths floor of the vaalt. Toe i
pan or saucer vill rest on the pea gravel and them an additional three inches of pea gravel are spread over the bottom of the pan. Parlite blocks of concrete (15%" x 7h" = 5") are laid en top of the pea gravel i
in the pan. Tha tw icyern of perlito block, plus loose perlite concreto, gravel laid in the rounded portion of the pan, vill be used as heat insulation during the stress-relief beacius of the co:nplete tank.
Oro: ni:9 tion e n! Personnel (I.a.*)
Coorse Dymmel is the Interim Field Engineer, reporting to Dr. Walton A.
Rodger and has responsibility for all HTS field activicias. His responsibilities are divided into three main categories:
(a) The ecchanical functio =s which include the receipt of equipment and asterials, the compliance with specifiestions, instn:: mentation, cad check stt. (This does not include any field functions.)
(continued)
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(b) Tbs normal civil engineering f*=cties.
(c) Tbs fabrication and assembl7 of field fabricated mere =.
Bob Pratt ubo has been with EFS since the first of the year will be following the. field fabrication respecuibilities of item c. above.
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Monitorinn Progreras_
At cbs present ties, water. air, soil, milk. and small saem are being sampled '---
to provida the background data for radiation levels prior to plast startup.
Uater sacples bains taken include precipitation, surface dr*=sa and water fraca the plant voll.
cenorn! Infomation
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The process mehanical cell is beins equipped by NW, on contract to Bechtol. It has boca decided by Ale that tbsy will build a sodal of the process mechanical cell.similar to the sedel wrk done by Eschts! for the '
plant facility.
Pmotoly operated manipuistors will be provided by PAR (Progress and Resesrch, Inc.) ubo is doing most of the nuclear business that Cencra!
Mills used to do.
Wyatt Industrias has the c=ntract for the pulse colum fabrication and will l
also f:bricate tha cont %ma dicsolvers.
- Rainy veather has doisyed construction work at the ETS plast site but
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present plans are for inersasing the work force to chout 600 in Fq.
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U. S. Atoraic Energy Cosmi:sion RegL:n L Division of Compliance z.
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e TITLE: Nuclear Fuel Servlees, Inco rpo rated Date: May 20, 1964 Construction Permit CPCSF-2 Docket No. 50-201 Date of Visit: May 13 and 14,1964 i
BY:
Willis G. Brevne, Inspection Specialist (Criticality)
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SUIMARY 1.
W. G. Browne of Region I, Division cf Compliance, inspected the Nuclear Fuel Services (NFS) construction site at the Western New York Nuclear Center near Springville, Neu York, on May 13 and 14, 1964.
Purpose of the visit was to make a more detailed inspection of the site, obacrve construction progress, and investigate the sempling program that NFS is using to obtain background radioactivity data for the environment.
2.
Rainy weathe-has not made it practical to bring ccustruction forcas up to full strenr,th and approxim4:ely 3GS cre now employed at tha site.
Most of the ef fort is bein3-rppliad to the pouring of cencrete fo r the process ing ouildin's. Concreta pours have been made on some of the first floor walla, and forms have been constru: tad for second floor walls.
3.
Welding of the tank pans is essentially complete. After the welds on pan 0-1.' era all approved, the pan vaa towermd from its cribbing to the pea gr vel base by replacing the cr13a with blocks of ice.
As the ice meltao, it slowly lowered the pun to the ground. The same operation will be perforced on pan 0-2 socatima next week.
4.
The 100-con crane has been installed in the snipptag and receiving building and and steel hea been put in placa.
5.
Approxt=stely 270 asuples hav l
been takan in the environmental e
sempling proge:m to provide background radioactivity data for the NFS site.
Radioactive analysis has been conc by c he Western New York Nuclear Research Center -t the University of Buf falo. Samples include surf ace water, mud and silt, weli water, vegetation, soil, air, silk, cne small game.
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Nuclear Fuel Services, Inc. May 20,1964 I
DETAILS i
Persons Contacted 6.
Dr. Walton A. Rodger, Plant Manager Bill Oldham, Production Superintendent George Dymmel, Interim Flaid Engineer Bob Pratt, Supervisor of Fabrication and Assecoly Joe Merkley, New York Atomic Research and Development Authority Bob McKibbin, Bechte! Plaid Engineer, Quality Control Gene C. Loud, Hea).th Physicist Categories Observac Wacte (VII.a.)
7.
Welds on the pen or saucer for vaste tank D-1 had beer templeted by $/13/64, and finsi radiographs were being taken on the seems.
Bacause pearlite is to be placed in the pan for insulati ? during the heat traating operation, at was necessary to tack-vwid a retstner-ring, 18" high, arcand the cacer edge of the can, i
8.
A visual inspection by W. G. Browne, showed that all welds of
,1 the D-1 pan vere appsrently cound. All radiographs of the D-1 pan welds were okayed by Bechtai ou 5/13/64 so the woooen cribbing was replaceo with blocka of ice. As the ice malted unoer the weight of the pan, the osn was elowly lowered to the vea gravel base. The l
entire operatis of placing tha Ice ano ic<er.n.3 ene pan toox aoout 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
t 9.
A vleual inspection of thi pan tor vaste cank D-2 showed several fisus in the welds wbtch had been.nerked r.nd scheduled for repairs prior to radiographin3 The canter section velds were all sound, but both the north taled and the south third of the velds each contained nine or ten flava that ' era to be re; sired. After veld repairs are made, the s mae selcing ice tecnnique will be used to lower the D-2 pan to the p.ta gravel base. This operation should be cospleted during the nett mek.
10.
Fabrication of waste taaka 0-1 and D-2 has been started with the initial welding of taak bottom aactions at ground level. The tank bottom plates will be welded together in eight sections because the ectal place is 5/3" thick cocoared to tha 1/2" thick (continuad) l
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Nuclear Fuel Services, Inc. May 20, 1964 place used for the pans. Each of the tank botton sections will weigh approximately the sama as one of the six sections in the pans.
About 850 tons of steel plate are needed for the two tanks and over half of it is now on site.
11.
Bob McKibbin, Bechtel Senior Field Engineer for Quality Control, has complete responsibility for the acceptance of welds, based on radiographs. He has particular interest in, and inspects, all of the heliarc welds for the stainless steel pipe used in the concrete building penetrations. After the radiographers have excmined the veld-films and recommend acceptance of the weld, Bob McKibbin evalu-ates the film himself and decides which welds are acceptable. The standard for acceptance ir a single imperfection no larger than 1/3 of the place or pipe wall thickness, which for most welds is less than 1/8".
No series of small imperfections greater than 1/4" in length can be approved.
In actual practice, imperfections do not exceed 1/16" without being repaired; bat, frequently, i= perfections as small as 1/32" are marked for repair. Bob McKibbin believes it is important to start with tight standards now, so that the welders automatically will work toward high quality welds. This will save him inspection time and repairs as tempo of the work increases, since he believes it is natural and easier to back off from high standards than it is to try and reverse the process.
- 12. Because the radiography needs have been sporadic, the pipe-weld work has been performed undsr rhort-term contracts using two radi-
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ographers. They are the Fittsburga rest Coepany cnd Buffalo X-Ray.
When the quantity of radiographic work justifies it, one company w* tl be chosen for doing all of the work and vill have their facilities tot developing film right at t he s ite. At present, all film is
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Plant Site (IV.d.)
- 13. NFS has estaolished a water reservoir in tha southeast section of che reservation, by constructing an earth filled dam.
A concrete pipe conducts water from the raservoir to a puun sell and the pump transfers the water, through pipelines, to the NFS site. During the recent rainy season, earth fill around the pump well was sof tened by the spring rains and slid away f rom the pump vel 1 into a ravine.
This caused the concrete pipe to break and water washed away part of the pump well foundation. The pump well is now tilted about SC f rom the vertical and repairs and back-filling will be necessary before the reservoir can be used in the manner for which it was designed.
(continued)
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