ML20086U378

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Rev 1 to Fermi Unit 1 Rept for Jul 1990 Through June 1991
ML20086U378
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 06/30/1991
From: Andersen R, Catola S, Mckeon R
DETROIT EDISON CO.
To:
Shared Package
ML20086U376 List:
References
NUDOCS 9201080002
Download: ML20086U378 (6)
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4 Fermi 1 Annua-1 Report. Rev. 1

  • Pdge 1 Tile DETROIT 1:DISON 00MPANY ENRICO Flhi AWHIC ITMER Pl>Mr. UNIT 1 Docket No. 50-16 License No. DPR-9 Report for July 1,1990 through June 30, 1991 Revluion 1 9

Prepared bys .sshks as In f L A,dogw Date '9 -9)* 9l

\ Ralph Id Anersen Director - Envirornental and Risk Assessment Approved by AA /M O/ LL.mf , Dat o _/) '/ 2 '9 /

' Robert liefion Custodian l Approved by: Date / 2 * >7- 7 /

Stanley' G. Ca t ola iteview Canmittce Chairman l.

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9:01020o02 91ino PDR ADOCK-00000341 R FDR

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n. Fervi 1 '

Ar;n'ual Report, Rev. 1

, Page-2 ENRIC0_ FE_RMI ATOMIC POWER PIMP, UNIT _1 ANNUAL REPORT e

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'1.0 PREFACE T}da annual report is issued by the Detroit Edison Cortpany in compliance with the provisions of the Unit ed States Nuclear I Pegulatory Ccamission, Provisional Operating License No. DPR-9, as amended, and is intended to provide a summaty-of the activities carried out and the results of the f acility rurvelliance progr am at the shutdown Enrico Fermi Atomic Power Plant, Unit 1, during the twelve (12) tonths ending June 30,

. 1991.

In summary, all required activities were conducted in accordance with the Operating Licence. No measurable exposure was received by plant personnel or visit ors f rom Fetw1 1 sources. No adverse ef fects on the envitunment- wer e identified by the envitorunental surveillance program.

2.0 SAFS'!T)R STATUS Primary System The primaty system, as established during the shutdown, remains blanketed with carbon dioxide. This was done to provide a passivating atmosphere for any remaining sod'um. A continueus supply of carbon dioxide maintains this cover gas at approximately four inches of water column pressure.

. Sodium Storage Tanks A one to five psig nitrogen cover gas is maintained on the  ;

three drained primary sodium storage tanks.

Ferni 1 License Extension The MRC issued Amendment No. 9 to the- Pessession-Only Licence No. DRP-9 for Fermi Unit 1 on April 28, 1989. This amendment renewed the . possession-only licence until March 20, 2025 and revised the Technical Specifications.

.3.0 HEALTil PHYSICS Personnel Exposurn l.

From July.1. 1990, through June 30, 1991, all personnel l monitored in Fermi 1 wore their Fermi 2 TLDs and' DRDs. All visitors were appropriately escorted and wore temporary DRDs for dosimet ry. . There were no exposures at tributable t o Fermi 1 recorded.

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l Fermi 1

/mn'ual Report. Eev.1 Page 3 4.0 SURVdILLANCE PROCRAM 4.1 Envir ontae n t al,Surv eys During the petiod July 1990 to June 1991. twenty environt: ental tionitoring samples were obtained for the Fetal 1 Radiological Envitonuental Monitoring Program (REMP). - These oarples concisted of fourteen surfoce water and raw city drinking waters, along with six lake and eteek sediments. Except es. noted with an esterittk (*).

the w Mr sample data shown in Table 4.1 is consistent with bettni 2 REMP control water savple data. Control water samples are camples which are taken at dirtances that are beyond any potential influence of the plant. Ao shown in Table 4.2 the sediment sampics indicat ed small etnounts of Co-137. The Cs-137 levelt: are consistent with levels detected in previoun years and prior to reactor ope ration.

Tp l j.1 WATER GROSS _ BETA ACTIVITY.JCi/L Date Gross Beta Satrpie Location Collect ed (pci/L)

Fermi 1 Water Plant 10/08/90 3.6E+0 +9.0E-1 l South Lagoon 10/08/90 3.5E4039.0E-1* l Monroe Drinking Water 10/08/90 4.8E+0 11.1E+0 l Det roit Drinking Water 10/08/90 4.3E40 19.0E-1 Reactor Channel 10/11/90 7.6E40 +1.3E+0*

Swan Creek 10/08/90 1.3E+1 72.0E+0* l Lake Water #3 10/08/90 2.7E+0[9.0E-1 l Date Groos Bwta Sample Location Collect ed (pCi/L)

Fermi 1 Water Plant 04/26/91 3 3E+0 +1.0E+0

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l South Lagoon 04/26/91 1.5E+1 2.0E+0* l Monroe Drinking Water 04/26/9? 3.1E+0 11.0E+0 l Detroit Drinking Water 04/26/91 2.4E+0 19.0E-1 1 Reactor Channel 05/08/91 7.1E+0 41.4E+0*

Swan Creek 04/26/91 7.2E+0 II.6E+0*

Lake Cater #3 04/26/91 4.1E40{1.1E+0 The'ertEr~g'iven is the probable counting ertot at 93% confidence level.

  • At the time of sample collection. Swan CrerA. South Lagoon, and Reactor Channel water levels were extremely icw with high turbidity. The samples that were collected were cicuded with bott om sediment and organic material. This cediment loading may increase the gross beta activity resulting from the naturally occurring radioactive products such as radium, potas sium, and their decay products.

___ _ _ i- _ , , . _ _

t Fermi 1 Annual ,eport, 'tev. 1  :

Page 4 TABLE 4.2 SEDIMElff CAMMA ACTIVITY.__pC1/kipHY WElgG*

Semple Location Swan Cinek Reactor Channel S. Lagoon i Coll ect ion _ Da t e_ ._ ,_10/08/90 _ 10/11/90_ 10/08/90 t

Mn-54 <2.0E+1 <3.0E41 (2.0E+1 i Fe-59 <2.0E+2 (3.0E42 <3.0E42 Co-58 <5.0E+1 <7.0E+1 <6.0E+1 Co <1.0E41 <2.0E+1 <2.0E+1 l Zn-65 <5.0E41 (7.0E41 s6.0E+1 l Nb-95 <6.0E+1 (9.0E+1 (8.0E41 ,

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Os-134 <2.0E+1 <2.0E+1 (2.0E+1 Cs-137 <1.0E+1- 2.4E+2 12.4E41 6.3E+1 11.0E+1 Zt-95 <6.0E41 <9.0E+1 (8.0E+1 Sample Location Swan Creek Reactor Channel S. Lagoon Collect _ ion Dat e 04/26/91 05/08/91 04/26/91 Mn-54 <2.0E+1 <4.0E+1 <2.0E+1 Fe-59 ' <5.0E+1 <1.0E42 <6.0E+1 Co-58 <2.0E+1 (4.0E+1 <3.0E41 Co-60 (2.0E+1 <5.0E+1 <2.0E+1 Zn-65 <5.0E41 <1.0E+2 (6.0E+1 Ub-95 (2.0E41 (6.0E+1 <3.0E+1 Cs-134 <2.0E+1 <4.0E+1 (3.0E+1 Cs-137 <3.0E+1 5.1 E + 2 15. 7 E+ 1 3.6E4112.0Et1l Zr-95 <2.0E+1 <6.0E+1 <3.0E+1 l.

The error given-is tE9 probable counting error at 95% confidence

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level. Less than values (<) are baced on 4.66 since counting error for i

background sample.

NOTE
The Cs-137 levels are consistent with icvels detected in l previous years and prior to react or operatfor.

I L

Fermi 1 .  ;

Ann'ual Report. Rev. 1  ;

Page 5  ;

i 4.2 Weekly Tests and Innygetjons i 4.2.1 We;er j st rusion Alat t, - Oontinuity t u,t c vi the water 'ntrusion alata circuit s for the Fuel and Repair Building (FARB). Iower React or Building. =

and biological shield wall areas were conduct ed '

as requited by Technical Specifications. No

- discrepancies were encountered during this j repotting period.

4.2.2 Cover Cas Pressure - Weekly checks on tl s cover- [

gas precaure on the primary systa, and pr! mary sodium etorage tanks were performed. No diactepancies were encounteted during thia l reporting por od, t

' 4.3 Honthly Inspectio,n,r i

Controlled Area Inspections - Visual inspections were 1

onducted of the fences, gates, and doors (locked): and operation of waste sump puups and liquid levels of MK 7

.8. 9. and 15 waste \ .quld storage tanks were checked within the specified frequencies. No discrepancica were found during this toport period.

, 4.4 _ Qua r t e rly Tests t

Smeur Surveys --The Reactot Building and FARB were '

checked for presence of gamma radiation and loose contarination. The results of these smear surveys- i indicated no decontnmination procedures were requited.

i Smear Survey,ResultS__ dom /100 cn:2(beta ganma)

Date Reactor Building FARB

09/20/90 <5 00 (500 12/07/90 s500 <500 03/28/91 <500 (5 ^"

06/17/91 <5 00 (5 9 .

4.5 Semi-Annual Teuta 4.5.1 Water Int _iusion Teets - The requited semi-annual functional tests of the water intrusion detectors in the FARB. Iower Reactor Building. and the biological shield wall were conduct ed within ,

specified intervals; no discrepancies were found. ,

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Festof. 1 Ann'ual P,eport, Rev. 1

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Pne 6 4.5.2 Car bon Dioxide Cover Gao Pr ecuut a - The cemi-annual tests of the high and low pressure alarm settingc were successf ully ceufl eted within specif fed intervals. Set pointo wore within the limits established and no adjustmentu were requ!ted.

4.6 Annual TeFt B

, Carbon Dioxido Cover Can PreariureJ elief_Valye - The annual test of the carbon dioxide cover goo pl escure r~ief valve set ting was successfully coinplet ed wit hin the prescribed Irequency. The re13ef actuation occurred within specificatfons.

5.0 REVIEW COMMI'ITZE 5.1 i<cview Con.mit t ee Membe rship _

S. G. Cat ol a, Chairman R. McKeon. Cust odian S. J. Bartman E. F. Madsen

  • R. A. DeLong, Jr. W. T. Haveal R. C. Drouillard J. F. Meyers
  • R. R. Eberhardt. Jr. R. E. Hueller
  • W. D. Gilbert E.11. llewt on it. J. liiggins E. M. Page R. A. Janssens
  • L. E. Schuerman
  • Audit Subecemitt ee 5.2 , Audit Subcorr.mit t ee The Audit Subconmittee inspected the facility and reviewed t he records; no deviationu vet e found f ra Technical Specification requirements. Audit reporte are reviewed by the Review Committee and maintained on file.

-6.0 SPECIAL PROJECTS

1. Assembly and storage of plant records for decommissioning has been completed.
2. A decbmmissioning fund has been established for the plant.

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