ML20069E535
| ML20069E535 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/15/1983 |
| From: | Coyle L, Scott D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-020.405A, 10CFR-20.405A, 83-283, RO-83-014, RO-83-14, NUDOCS 8303220093 | |
| Download: ML20069E535 (4) | |
Text
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Commonwzith Edison Drlsdin NucInr Powsr Station RR.#1 Morris, filinois 60450 Telephone 815/942-2920 March 15, 1983 DJS Ltr. #83-283 James G. Keppler, Regional Administrator Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 A copy of Deviation Report #12-3-83-14 is being submitted to your office in accordance with 10 CFR 20.405 to report an occurrence of levels of radiation or concentrations of radioactive material in a restricted area in excess of any other applicable limit in the license. This report describes the event and corrective actions being taken to prevent recu rren.ce.
Da D. J. Scott Station Superintendent Dresden Nuclear Power Station DJS/nh Enclosure cc/ Director of Inspection & Enforcement File /NRC 8303220093 830315 PDR ADOCK 05000249 MAR 17 1983 S
S U PP LEME NTA L DVR l D I - I l ! 2 l - l 0 l 3 I - l 8 I 3 l -l 1 I 41 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) lo l i l l I i 1. l D i R l S ! 3 l@l Ol Ol-l O !OI Ol O J O I - l O! O l@l X l X I X l X l X l@l X l X I @
7 9 3 LICENSEE CQoE i4 15 LICENSE NuMSER 25 26 LICENSE TYPE J0 57 CAT 54 CCN'T lolil 3g,c; I X l@l X I X l X I X l X I X i X I X I@l 01211 l 9 I s I a l@l o l 311l518131@
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60 61 ooCKET NUMSER 68 69 EVENT oATE 74 75 REPORT cATE 80 EVENT DESCRIPTION AND PROBA8LE CONSECUENCES h I o i 2 l lFollowing a spurious Reactor scram, the isolation condenser automatically initiated I
I ue to a Group I isolation. The unit operator opened the 3-1301-10 valve which al-I d
l o 13 l Ioi4l l lowed contaminated demineralized water into the shell side of the isolation condenser l ioisl Ifor make-up.
Approximately 22,400 gallons were added allowing 0.7 millicuries to I
lo$6l l steam out the vent.
Sa fe ty significance was minimal since the radioactive relence I
,was of a very low level and limited to within site boundary. No effect on public l
health or safety. Previous similar occurrence reported by DVR 12-2-81-14.
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10 11 12 13 18 19 20 SEQUENTIAL octuRRENCE REPORT REVISloN OVR EVENT YEAR REPoR1 No.
CooE TYPE No.
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33 34 35 36 37 40 el 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTICNS
,,,g, lCause of the event was personnel error. The unit operator opened the M0-3-1301-10
, allowing contaminated water into the shell side of the isolation condenser instead I
lof opening MO-3-4399-74 which allows clean demineralized water into the shell. The
,,,,, l activity in the isolation condenser was reduced by " feeding and bleeding" with clean j
,,,,,l demineralized water. The contaminated area outside the Unit 3 Reactor Building was l 7
a,
(over) 80
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. power oTwER STATUS oiScovERv oESCRIPTioN SrA Ii 15 l d@ l 0 l 0 l 5 l@l N/A l
[ Aj@l Operator Observation l
A$TiviTv Co'0 TENT AMouNTor ACTiviry @ l LOCATION or RELEASE h
_. PELEASEo onRELEASE l Isolation Condenser Vent to Atmosphere l
li ls ] l M] @ l M lgl
.7 millicuries 7
8 3 to 44 45 80 PERSONNEL EXPOSURES Nuv8ER TYPE oESCRIPTioN l 1 l 7 l l 0l 0 l 0 l@l zj@l N/A l
PERSo~~E t iN;u'J,ES oESCRiPfioN@ /A NuveER N
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4 9 11 12 30 LOSS of oR c AMAGE To FActLITY TYPE oESCRIPTIoN Ii 19l l zl@l N/A l
7 a 3 to 30 PUBLICITY ISSUED oESCRIPTtoN 12101 1 Nl dd l N/A I
7 8 3 10 0
Lawrence Covle 815-942-2920, X-526 NAME CF PREDARER PHONE.
/n s f n --)} Commonwealth Edison DEVIATION REPORT DvR NO.
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3 S3 14 v
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j STA UNIT YEAR NO.
PART 1 l TITLE OF DEVI ATION OCCURRED2/19/83 1730 Opened 3-1301-10 Valve on Iso Condenser oAre T've SYSTEM AFFECTED 1300 PLANT STATUS AT TIME OF EVENT TESTING Isolation Condenser Refuel 130 0
yong
, PwR(MwT)
. LOAD (MWE) vS OiWi*n[a"s0IirYoUsReactorscramonU-3,theisolationcondensorinitiatedautomatically due to a GRI initiation. When the isolation condenser Low Level alarm annunciated, the NSO opened the 3-1301-10 valve to make up the shell side of the isolation condenser. This valve allowed contaminated demineralized water into the condenser. Approximately 22,400- gallons was added allowing.7 millicuries to steam out the vent. This release was discovered at 2130 and Red Phone call made at 2200.
10 CFR50.72 NRC RED PHONE 8
O NOTIFICATION MADE YES NO EQUIPMENT FAILURE N/A 2/19/83 OVES G No
.ORx RE0uEST NO.
RESPONSi8tE SUPERVISOR Gary L. Smith Dart P ART 2 l 0PERATING ENGINEER'S C0hWENTS The activity in the shell side water of the isolation condenser will be reduced to below acceptable limits by " feeding-and-bleeding" with clean demin. water.
Also, the contaminated areas outside of Unit 3 Reactor Building have been roped off and decontamination started.
O EVENT OF PUBLIC INTEREST 2 4-HOUR NRC NOTI F I CATI ON RE0' D
/A TELEPH 0 TECH. SPEC. VIOLATION
@ NON REPORTABLE OCCURRENCE TELEGM/TELECOPY 14 DAY REPO R T ABLE/ T. S.
REGION 118 DATE TIME j
O 30 DAY REPORTA8LE/T.S.
CECO CORPORATE NOTIFICATION MADE P CL REPORT RE0'D IF ABOVE NOTIFICATION l$ PER IOCFR21
@ ANNUAL /
10CFR 20.405 A.I.R.
5-DAY WRITTEN REPORT RE0'D PER 10CFR21 Telecopy Dennis P. Galle 2/22/83 1127 i
L.E.R.
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CECO CORPORATE OFFICER DATE TIME i
l l
PRELIMINARY REPORT T. Ciesla 2/21/83 COMPLETED AND REVIE*ED OPERATING ENGINEER DATE E E BY STAT ON RE W
N-e/a ele U
3I i,5) 83 2//f/93
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RESOLUTION APPROVED AND g
AUTHORI ZED FOR DI STRI BUTION 66.$t76 (FORu 15=Stati 10 81
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