ML20080H173
| ML20080H173 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/20/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20080H099 | List: |
| References | |
| NUDOCS 8402140132 | |
| Download: ML20080H173 (3) | |
Text
N
.i TENNESSEE VALLEY, AUTHORITY O
s CHATTANOOGA. TENNESSEE 37401 s
400 Chestnut Street Tower II CCC27 A8: 59 s
December 20, 1983 U.S. Nuclear Regulatory Commission
^ Region II ATTN: James P. O'Reilly, Rygional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
E'nclosed is our response to your November 25, 1983 letter -
to H. G. Parris transmitting Inspection Report Nos. 50-259/83-44,
-260/83-44,.-296/83-44 regarding activities at our Browns Ferry Nuclear Plant which appeared to have been in violation of NRC regulations. We have'encipsed our response to Appendix A, Notice of Violation. If you have any questions, please call Jim Domer at FTS 858-2725.
To the best of my kr.owledge, I declare the statements contained herein are complete and true.
Very truly yours, TENNESSEE VALLEY AUTHORI'tY L. M. Mills, Manager..
Nuclear Licensing Enclosure
~
\\
+
I s
E
~
s.
i 1
s s
4 N
,1
\\
8402140132 840203 gDRADDCK 05000259 PDR 2
s a
't
.s' a_
.1 s
i.
/s An Equal Opportunity Ernployer lm
} 5l
'y t:
4 RESPONSE - NRC INSPECTION REPORT NOS.
50-259/83-44, 50-260/83-44, AND 50-296/83-44 JAMES P. O'REILLY'S LETTER TO H. G. PARRIS DATED NOVEMBER 25, 1983 Appendix A (83-44-01) i 10 CFR 20.101(b)(1) requires that during any calendar quarter the total occupational dose to the whole body shall not exceed 3 rems.
Contrary to the above, this requirement was not met in that a subcontractor employee received a dose of 3,059 mrem whole body during the third quarter i
of 1983 This is a Severity Level IV Violation (9upplement IV).
i 1.
Admission or Denial of the Alleged Violation TVA admits the violation occurred as stated.
P.
'easons for the Violations if Admitted In August 1983, a thermoluminescent dosimeter (TLD) which measured an exposure of 563 mrem was recorded on the TVA historical exposure data base system (REMS) but not on the exposure tracking system (HPDT) used at Browns Ferry to track current personnel exposures. The exposure was not recorded on the HPDT system because of a computer software problem which caused the TLD badge reading to be rejected. The rejected TLD badge was placed on a TLD reject report so the error could be corrected and the data manually entered into the HPDT system. A data processor failed to nanually enter the data into the HPDT system as required by i
plant procedure.
3 corrective Steps Which Have Been Taken and the Results Achieved A review of exposure records for all other individuals was conducted.
No other employees were found to have exceeded any exposure limits.
The Management Systems Development Section (MSDS) was contacted to initiate software changes to prevent future similar occurrences. These modifications have been completed.
The importance of the reject list was discussed with cognizant Browns -
' Ferry health physics personnel.
y
+
[..
ib T EpC y
g.
P t.-
k' r A., A y h1 F b' hY
'm 4
,2
g 7
- sg
/
1
. y.
u
- +
-2 +
, Browns Ferry proce ures were modifiedto inclu<fe a rmore detailed d
description of de,simetry handling. This modification included double verification for critical data inputs.
Seminars were held for all Browns Ferry health phyafos" personnel to discuss current dosimetry requirements.
/
The Radiological Health SMff Evaluation Se41on and the plant Health P(,ysics Section conducted independent reviews to determine the root j
,cause of the event.
$=
4
' Additional data processing staffind was obtained tw reduce workloads.
- Physical work conditions in the. data,-processing rooms were improved..
1 4.
Corhective Steps Which Will' Be Taken To Avoid Further Violations Software. modifications'are,being made to ensure the computer verifies
.that all rejected badges are aanually inputted.
j
'SoftsEge for comparison between HSMs and HPDTs data bases is.bqing
~
made.
/
5.'
Date When Full Compliance Will Be Achieved 6
Full compliance will be achieved January 31, 1984.-n A
p
's,.
a R'
.t f
~
.C,
-g4
}.-
(~
- 4 s
,s
,G I'
': kl p#
[
d~
.at,
f I
r
{,
j
/(
'~- ':
_f
^"
)
^*^
aj p o
f' h
p
,j
?
i 4=
1C
.[~
. p.i
+
y b..
4-
. 4, ].
'/p.
'1
~ y y
~
Jji i
y:
7 v
g' t
.,,e 3
- f sqqpg
,,. 9,3
- y o g+
i
.j
+7 j-
- o; n N
W[1; $f'1::.k_
'}.
f s.
- 'r
+
. wix;,,
y neg
'n.
- x:
- xy
- y. - ;f _
'?_
., s
}'{
- El ~ ^~ ' ~
s
~ '
lf,' ' -, l !
,l m
., + --.- n g
,, a.4S,.._.w,,n,' w\\.1..g'g AI f
b _.W hi.:
_ i.
s,