ML20206G580
| ML20206G580 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/04/1988 |
| From: | NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| Shared Package | |
| ML20206G037 | List:
|
| References | |
| NUDOCS 8811220320 | |
| Download: ML20206G580 (2) | |
Text
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UNITED STATES 9-NUCLE AR REGUL ATORY COMMISSION
! *h.d lh W ASHINGTON. D. C. 20555
%,f sarE v EVALUATIN EDn:T Av TWE OrrICE OF SDECTAl D 0?! CTS g ;nvEE r*.:E:N EttvE*.* DEDO:T OP 3110?, "DAM 0ACTtvE PaTEQiat CnNTE0t" TENNESSEE VALLEY AUTWODITY a
$EOUOvaw NUCLEAR PO'WER PLANT UNITS 1 8 ?
00 RET Nr?. 50-327 AND 50-328 Subde:t Catecerv:
Operatiers (30003)
Sutd te'; rv:
Fealtn Uysics (31100) aterial Ccr. trol (31100)
Ele er*:
haciel:tise w
I"e 035es f r Ele e.t Re: Ort CP 31102, datec August 4,1986, are the f clic ing e :;o;.ee :: : erns:
C: :e n 0:-55 C:E-:11:
CI statta that TVA dumped racica:tise material ( ater), carried in tanker trucks f re?. Secuoyah, in ene of the fielcs en the otner site of Watts Bar project.
This c::urre: stout three years age.
3 :ern 't-55 1Cl-CC3:
Sequoyah-1980 there as' an unkno n quantity of radioactive nter spilled into the uncontrolled drain system due to a valve on a
ater sa?pling station in the turbine builcing being left coen.
Construction CeDt.
Con:ern.
CI had no further infor ation, h *:e n JAu-$6*0?l:
Raciclegi:alnygienetreble?. of conta inate:
enteria> store: ir lo:(ers and cabinets whi:n are not Orc;erly labeled.
Material stored in auxiliary building.
s e4
$$@v Cen:ern uq;.35.;;3 g7,,n.ag no longer required 3 cl u n tCol
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u:~5 3 :- :e:.:,an rat e- : 3-Oei ; :< s::te: :<
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- -55-: 5-C'1.
Ra:ies:ti,e -ater -as allege:ly c Oe: in a
e : * *:- u. e t e
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- - i a:.e te-t a:.----i : e: re'u se :f t
r3:4: 3:11.e =3ter *: tre e*w ir:**e*t thrt.g* a Orairage 5 ite*
C' *urre; in 1950 "en ater 5 ille: 'r:
a.314e t'at ra: teen left
- en :
a -ater sa ;Ii*; station in the tur0're Ouil:ing.
2 C.
Concern JAM-86-001.
Radioactive material is improperly stored in lockers and cabinets in the auxiliary which are also not properly labeled.
O.
Concern MRS-85 003.
Green tags are no longer required for teols in the clean tool rcom.
Green tags were used by the licensee to indicate that a particular tool had been surveyed by health physics and fcune uncontaminated.
III. Esaluation A.
00-85 005 011.
TVA intervie ed personnel responsible for radioactive waste handling and release to the environment.
They determined that curing the period 1981 through 1984, alum sludge from a water treatment plant at Sequoyah was hauled by private contractor tanker trucks and placed en fielcs as a soil conditioner.
The water 1
treatnent facility from whicn the sludge was removed was separate fret any conta,inated or potentially contaminated system.
This
- ractice was stepped in 1955 due to a change in State of Tennessee regulations.
Botn sluege and soil samples had been taken and analy:ec ty TVA at various ti.tes during this operation.
E.
.0 10'.-003.
Such an event involving Na-24 on December 1,1950,
-as sa stantiated.
Na-24 is used for moisture carryover testing curir; initial startup.
There was no environmental or personnel ei;0sure pr0ble?
A. 5 a result of the event due to the short half-life 1
of 'i3 24 TVA evaluated tne generic applicability of this event to a'atts Ear and Bellefente.
l l
C.
JAM-36-CC1.
TVA *ealth pnysics personne
- onducted searches and saneys of cacirets, carts and storago :;4es in the Auxiliary i
E.ildin-Cnly one unlatele0 storage t:. :o'ntaining radioactive ateriaI. was founc.
TVA did identify a problem with HP not being able to obtain ready access to locked containers since many were not 4
latelee to indicate the responsible organization from which to obtain tre key.
TVA took action to correct this pr:blem.
N 5-55 CC3.
'anen Sequoyah changee to the ::.er bicek concept the restrictec area boundary was changed so that the clean tool room is re-cutside the restricted area.
TVA HP personnel sursey tools at
- e restricted area 0:undary so there is n: neec to tag tools in the tool roc..
Prior to the change, it was possible for a tool to te placed in the teol reem ithout going throug'1 the HP survey station.
Therefore, a green tag was required to sho that HP had surveyed the teol.
IV.
C c'usion Tre NC staf' telie,es trat TiA insestigation :f the centerns was acecuate, 3-c t eir res:1 uti:n of tre concerns as descriced in Ele ent e: Ort C; 3'.'.:2 is a::e:ta: 'e.
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