ML19095A803

Submit Abnormal Occurrence Report No. AO-S1-75-15, as Requested by NRC

ML19095A803
Person / Time
Site:	Surry
Issue date:	09/08/1975
From:	Stallings C Virginia Electric & Power Co (VEPCO)
To:	Moseley N NRC/RGN-II
References
Serial No. 647-S LER 1975-015
Download: ML19095A803 (3)

Text

I .*

• VIRGINIA. ELECTRIC .A.ND POWER COMP RIOHMOND, VIRGINIA. 23261 September 8, 197.5:

Regulatqfil Mr. Norman C. Moseley, Director Serial No. 647,--S Office of Inspection and Enforcement PO&M/JTB:clw

.. u~s. Nuclear.~egulatory Commission Region II - Suite.818 Docket No. 50-280 230 Peachtree Street, Northwest License No. *DPR-32 Atlanta, Georgia 30303

Dear Mr. Moseley:

Pursuant to.Surry Power Station Technical Specification 6.6.B.l, the Virginia Electric and Power Company hereby submits forty (40) copies of supplementary information to Abnormal Occurrence Report No. AO""'.'Sl-75-15.

This information was requested by the NRC.

The substance of this report has been reviewed by the Station Nuclear Safety and Operating Committee and will be placed on the agenda for the next meeting of the System Nuclear Safety and Operating Committee.

Very truly yours, p;.' .. '

<._;?_

.i/.- ~)/}/)

t//:--:d,/;;z,t/!.:-~r

C. M. Stallings Vice President-Power Supply and Production Operations Enclosures 40 copies of AO~Sl-,75...,15 cc: iv,1:r. K, R. Goller Mr. Bryce P. Schofield Director, Bureau of Industrial Hygiene Department of .Health

Updated Report of LICENSEE EVENT REPORT AO-Sl-75-15 A Previous Revort D2.ted 8-15-75

' CONTF,OL BWCK=Le, , , , , ~EASE PRINT Al..L REQUIRED lNFORM./.\TIOiul) 1 6 LICENSEE oc~*~s..::

NAME LICENSE rsu '*' ;;:=:;:, ,--..*;::*[

@EJ I v I Ajs IP Is I 1 I 101°1-1° 1°1°1°1°1-1° 1° I 14 !1 1111101 I O l 1 I 7 8 9 14 15 25 26 3:J 3'1 32

. REPORT REPORT CATEGORY TYPE. SOURCE DOCKET NUMEE-l EVENT DATE .~:::PO=lT 04 TE

@E]coN'T I P !o I Lu L!:J i O I s 1 .0 I ~ I O 12 I 8 I O I I69o I s I o\ 3\

r 715 Io I 91 oI 3j7 1s I 7 8 57 58 59 60 61 68 74 75 80 EVENT DESCRIPTION

@Tu1 !During normal operation a leaking fitting on 11 B11 overhead gas conpressor resulted in 7 8 9 80 ffi Ithe  !-!:nplann.ed __1_;:$.lea_~e of -E a~J.:..~~ct_~:'.:'.:~...E2.ilterial f;r9m -~:..he_~-g~~~ }q:qropria te operational_J 7 8 9 80

@El jprocedures were followed to isolate the release. The leaking fittiug h2.s been re- I 7 8 9 . 80

~ !paired. (AO-Sl-75-15) _j 7 8 9 * - - - - ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - BO

@lli 7 B 8 P?.i'.~E. BO SYSTEM CAUSE CCkU?~),'9 ..'T COMPONENT CODE CODE COMPONENT CODE

• s,_=..£:;, MANUFACTURER

@m 7 8 Lill.JU 9 10

~

11 IP 12 Ir !PIEi xi xj 17 L!J 43 I z I 91 9 I 9 I 44 47 CAUSE DESCRIPTION

~ IA loose fitting on "B" overhead gas conpressor allowed airborr!e n~di.oactive material I

7 8 9 80 ffi Ito leak into the gas stripper room and thus offsite via the ventilation vent system. I 7 8 9 80

~ I 7 8 9

,1,1,,:T~QD OF 80 FACtUTY STATUS  % POWER

• OTHER STATUS D'S8DVERY n~*Y's;,-,; 2i=.:sc:=:~u,~

EE]

7 8 LFJ 9 10 l 1 I ol 0112 13 X/A 44 w45 I Ventilation 46 Vent Hoaitor Ala_rm_..__ _J 80 FORM OF ACTIVITY CONTENT OF RELEASE LGU.. 1 ,G\.i 'C~ r:=t.E.!:SE rn RELEASED AMOU!<T OF ACTIVITY Lw WI 28.5 Ci Total Auxiliary Bldg. Ven.t to Atmosphere

'-------'.____~--__.....:_--

_J 7 8 9 10 *11 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

[ill I o I oI ol W ..___N....:../_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _____,

7 8 9 11 12 13 80 PERSmmEL INJURIES NUMBER DESCRIPTION EEi* 8 9Io I oI ol11 7 12 N/A 80 DFFSITE CONSEQUENCES

[ili]. I N/ A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _,J 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~UJ

.7 8 9

'~N~/_A~--~~~--~~~~~--~~--~~~~~~~~~~

10 80

. PUBLICITY

@fl N/A 7 B.9 80 ADDITIONAL FACTORS

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• • .. 7

• B 9 See a t t a _ c _ h _ e _ d _ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _J80

[iliJ L _ _ _ __ J 7 8 8 80 NAME: E, N. Sweene\'

• Jr. ~ - - - - - - - - - PHONE: (80~) 357-3184 G? 0 66 !

• t 07

e UPDATED REPORT

• RELEASE OF AIRBORNE RADIOACTIVE MATERIAL DUE TO OVERHEAD GAS cmI?R.ESSOR LEAK ABNORMAL OCCURRENCE AO-Sl-75-15 This information is provided in response to a request by the NRC on August 21, 1975.

Health physics personnel were notified that an unplanned release of air-borne radioactive material was in progress at 1815 on August 3, 1975. Personnel began taking qualitative portable air samples as soon as the radiation mo.nitor alarm was annunciated. Quantitative air sampling results were initiated at approximately 0800 on August 4, 1975, with the decontamination building being the ~uspect area. Results were negative. The gas stripper room was sampled at llOO hours with results being positive. It was then found that the ventilation vent sampler location for the radiatio.n monitor indicating decontamination building was erroneous.

Tritium samples were not taken. Past experience had revealed that ri 3 l is the limiting nuclide and; therefore, no tritium scBipling was conducted.

It is not likely that limits of Appendix B, Table I to 10 CFR 20 were exceeded in the auxiliary building. The highest actual measured concentrations of radionuclides listed in the basic report support this conclusion.