ML20210D971
| ML20210D971 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/28/1972 |
| From: | Wagner H POWER REACTOR DEVELOPMENT CO. |
| To: | Muntzing L US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20210D960 | List: |
| References | |
| NUDOCS 8609220064 | |
| Download: ML20210D971 (5) | |
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POWEn REACTOR DEVEWl'31ENT C05WANY
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191i FilWl' STilI:1II' DETit0IT 26. Mit:lllCA.N EXHIBIT 4.1 n.
FWOODWAnD I 4838 i
April 28,1972 Mr. L. Hanning Huntzing Cirector of Regulation U. S. Atomic Energy Comission Wghington,D.C.
20545
Subject:
Decommissioning Plan for the Enrico Fermi Atomic Power Plcut, Unit 1 Desr Hr. Huntzing.
We have received yorr letter dated March 31, 1972 in which you re-
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qu:s'ted information with regard to decomissioning of Fermi-1. The following cummarizes the results of our,re-evaluation 'of the over-all pihn.
PRDC's decommissioning plan includes the following major activitics:
1.
Return of the 1e'ased enriched uranium to the U. S.
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Atomic Energy Commission.
2.
Transfer of the primary sodium'to the sodium storage tanks where the sodium will be allowed to freeze.
3.
Chemical treatment of the residuai sodium in the primary system to a passive material.
4.
Dismantling of miscellancous contaninated equipment presently outside of the reactor building and storage of such equipment in the equipment decay tanks within the reactor building.
5.
Installation of monitoring instrumentation in the.
sodium storage t'ank building, in the reactor building
.and transfer tank vault.
6.
Radici blanket subassemblics will remain stored in the
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reactor.vcosci and nr.ini binnket segments will be stored in a concrete' vault in the ruel and Rcpair guilding.
7.
Permanent clonure of all, penetrations in the reactor buildlur, except the pornonnel air lock, and those accommodatinr, neveral 'clectrical nad inntium.'ntation 1cada uned for monitorlur..
8609220064 860915 PDR ADOCK 05000016
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Nr. L. Hanning Huntaing April 28, 1972 n'
8.
The 165 Hw turbine generator portion of the facility which is owned by The Detroit Edison Company.will continue to be operated with the oil-fired steam gen-erator by Detroit Edison as it has in the past when the reactor was not in operation.
d This plan was adopted in recognition of the fact that the site will continue to be occupied by The Detroit Edison Company, which plans to install in addition two large boiling water reactors, and periodic surveillance and j
maintenance of the different areas housing radioactive materials can readily be made.
The estimated schedule and costs and the bases for them are attached.
The over-all project is scheduled to be completed in one year with the primary I
cffort directed toward returning the enriched uranium.
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The estimated cests were derived on the basis of prior operating
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experience and assumed that the AEC does not increase again the use charges E
tor *the value of the leased material. The schedule is derived,on the basis l
that PRDC has two licensed casks available to ship the fuel sections to the re-processing plant. PRDC has outstanding requests with the Division of Mate-E rials Licensing to upgrade the SNM license for an existing shipping cask and l
for a license for a second essentially identical shipping cask. The most recent application for these licenses was submittqd on January 31, 1972. The indicated revisions to the existing cask are underway, but fabrication of the cecond has not been started pending DML approval of the license application.
The plans for the maintenance of t' he plant in perpetuity include:
I 1.
The installation of instrumentation to promptly iden-tify the existence of potentially deleterious conditions.
P.
2.
Storage of the radioactive materials with".n buildings I
having high integrity.
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- 3. *. Continuing periodic surveillance.
The funding requirenents to perform 'the necessary preventative main-l tenance and surveillance are estimated at about $30,000 per year.
It is anticipated that this cost would be considered by The Detroit Edison Company to' be a part of their normal surveillance of the site, which will contnin two l
1153 tr.t boiling unter reactors, as well as 225 Mu of existing oil-fired capacity.
Sincerely, l
l Harvey A. Un,a,ner Acting Cencral Manager l
Al. tach 6Mutu 4.5 I
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Table I l
Banco for Decornenlauf on{nn Fr mJ-1 1.
Return Enriched SfCf to USAEC h d.' Subassembly Handling and Shipping p
1.
Two shipping casks are available, cach will contain 8 cut fuci sections.
2.
.Eight fucl subassemblics are prepared f'or shipm'ent each five days.
3.
Shipment to NFS, West Valley, New York, a round t' rip of ten days.
4.
Axial blanket sections are accumulated and. permanently stored in '
the fuel and repair building.
5.
Radiai blanket subassemblies will remain in,the reactor vessel.
3.
Reprocess Core-A fuel 1.
NFS begins reprocessing one week after receipt of all fuel.
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Reprocessing duration is forty-five days.
3.
Shipping of urdnyl nitrate to Portsmouth, Ohio, AEC plant is ac-l complished in thirty days.
C.
Convert Nitrate to Hexafluoride I
1.
AEC conversion is executed in ninety days.
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9}I.
Primary Sodium System
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A.
Primary sodium is transferred to storage ' tanks.
B.
Servic.e system lines are cut and capped within reactor building.
C.
Cold trap is drained to storage tanks.
D.
Residual sodium is chemically reacted to inert substance.
I.
Hincellaneous Contaminated Equipment A.
Dismantic and store with.'n reactor building in equipment decay tanks.
B.
Allow codium in transfer taak to freeze and icolate room.
V.
Reactor nnfid h Hemove cicetrical 1 cads, cabics and instrumentation Icads except lighting circ:.its and instrumentation for continuing curveillance.
B.
Cover and seal wcld all unused penetrations including heating and ventilating ductn, accondary nodium penutrations, etc.
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owrJt Mr.ACTUlt DINf3DPMFNT. COMPANY
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1 TABLE II 1
SCHEDULE FOR DEC0!Df1SSIONING FERMI-l I
- Period, I
Activity Months From Beginning Core-AFuelfandlingandShipping O-6 Fuel Reprocessing 6-1/4 3/4 Ship Nitrate 7-3/4 3/4 Convert to Hexafluoride 8-3/4 3/4 Drain Primary Sodium and React 6-1/2 1/2 I
Salvage, Dismantle and Store' 3-8 Hiscellaneous Equipment
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Seal Reactor Building 7-9 l
l 1
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s 4.7
ait.'!IF tcmn DEm.on.irtrr Co>uuy
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Table III
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Cost Estimates for Decomminnioning Ferml-I
' g Cost in $1000
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Prior Decomissioning Iten Costn*
Costs Total Plant Operations 100 1060 1160 Administrative 160 1 76 16 g,
consultation 2~
10
.12 Nuclear Insurance,-
180 180 Reguintory
- 28 30 125
'125 Pr:pcrty Taxes 3
'.451.**
9'09 1360 l
AEC Une Charges Return Leased Materini -
(*. Reprocessing t
825 825 j Shipping, including cask modifi-g 185
, 207, M
cations and procurement 22 AEC Conversion Charges ***
593 593 Subtotal
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1603 1625
.g R::ctor Building Clocure
. 75 '
75 Axial Blanket Disposal 37 37 l
Interest Earned
~50
-50,
-550 to 2750
-550 to -750 Salvagabic Equipe. cat and Structuren 2
h Total
.593 3587-3387 4180-3980 3:
'. O Liab111 tics accrued prior to the start of decomissioning.
El
- Assut.iac maximus use charge (6 monthn') liability.
- A A Doen not include ponnibic charnec, including une chargen, to concentrate the nitrate colurlon.
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