05000280/LER-1980-017-03, /03L-0:on 800218,at 100% Power,Vacuum Pump for Process Monitors RH-GW-101 & RM-GW-102 Found Tagged Out of Svc Leading to Release of Unmonitored Gases.Caused by Failure to Perform Procedure Before Taking Pump Out of Svc

/03L-0:on 800218,at 100% Power,Vacuum Pump for Process Monitors RH-GW-101 & RM-GW-102 Found Tagged Out of Svc Leading to Release of Unmonitored Gases.Caused by Failure to Perform Procedure Before Taking Pump Out of Svc

ML18138A082
Person / Time
Site:	Surry
Issue date:	03/14/1980
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18138A080	List: 05000280/LER-1980-017-03, /03L-0:on 800218,at 100% Power,Vacuum Pump for Process Monitors RH-GW-101 & RM-GW-102 Found Tagged Out of Svc Leading to Release of Unmonitored Gases.Caused by Failure to Perform Procedure Before Taking Pump Out of Svc ML18138A079
References
LER-80-017-03L, LER-80-17-3L, NUDOCS 8003170363
Download: ML18138A082 (4)

LER-1980-017, /03L-0:on 800218,at 100% Power,Vacuum Pump for Process Monitors RH-GW-101 & RM-GW-102 Found Tagged Out of Svc Leading to Release of Unmonitored Gases.Caused by Failure to Perform Procedure Before Taking Pump Out of Svc

Event date:
Report date:
2801980017R03 - NRC Website

text

('7-77) e.lCENSEE EVENT REPORT e.

CONTROL BLOCK: I

! '1' (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1.... _.....___.__.....___.__~-!6 \\...'.)

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I VI Al sj Pl sl 1 IG)I o I o I - I o I o I o l o I o I - I o I o 101 4 I 1 I 1 I 1 I 1 l©I I I 0 8

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LICENSEE CODE.

14, 15 LICENSE NUMBER 25 26 LICENSE TYPE

JO 57 CAT 58 CON'T [iliJ 7

8

~~~~~ ~G) I o I s I o I o I o I 2 I s I o 101 o I 2 I 1 I s I a I o !G) l o I 3 I 1 I 4 I a I o I G) 60 61 DOCKET NUMBER 68 69 EV:aNT DATE 74 75 REPORT DATE 80 EVENT D!:SCRIPTION AND PROBABLE CONSEQUENCES@

[I]IJ I With the unit at 100%.power, Liquid Waste Test Tank 1 LW TK llB was inadyertentlv [QJ]J I released without being sampled.

This is contrary to T.S. 3.11.A.4 and reportable per

~

T.S. 6.6.2.b.2.

The operator in the Control Room was monitoring tank level and imme-

~

diately terminated the release when the level in 1-LW-TK-llB changed.

Also, the C2::J]J monitor in the discharge line was operable and would have terminated the release

~

if the activity had exceeded preset limits.

Therefore, the health and safety of

[£))] I the public were not affected.

I 7

8 9

80 [TI}]

7 8

SYSTEM CODE I Ml Al@

9 10 G\\ LEA/RO LVENTYE./1.R

~

REPORT ! 8 j O j NUMBER 21 22 CAUS.E

CAUSE

CODE SUBCODE COMPONENT CODE LAJ@ LI@ I z I z I z I z I z I z I@

11 12 13 SEQUENTIAL REPDFjT NO.

I I

I O 11 I 6 I 23 24 26 27 18 OCCURRENCE CODE 10 13 I 28 29 COMP'.

SUBCODE LU 19 REPORT TYPE LJ 30 VALVE SUBCODE [Ll@

20 l.=!

31 REVISION NO.

LQ.J 32 TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED ACTION FUTURE EFFECT SHUTDOWN

~

ATTACHMENT NPRD-4 FORM :;us.

PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER L!!..1@12...J@ ~@ ~

1. 0 IO I O I I l!J@

33 34 35 36 31 40 41 l!!J@ ~ I z l9 l9 l9 I@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

42 43 44 47 I Liquid Waste Test Tank 1-LW-TK-llA had been sampled and was ready for release.

Howevet, ITIJ] I when performing the necessary valve lineups, the discharge valve from 1-LW-P-llB CIII] l,was opened instead of the valve for 1-LW-P-llA, resulting in 1-LW-TK-llB being par-o::r::rJ I tially released.

The release was terminated and tank 1-LW-TK-llB was sampled.

Based [J]1J an estimate was made as to the amount and activit released and veri-1 s g 1.e in allowable limit~

F~~fL~

% POWER OTHER STATUS ~

ITli] L!J@ 11 p p l@I NA 8

9 10 12 13 44 ACTIVITY CONTENT

(.;';;\\

RELEASED OF RELEASE AMOUNT OF ACTIVITY '2;.J GE L.!:..I@ ~@i....l __

._o_oo_o_o4_3_c_i __

7 8

9 10 11 44 PERSONNEL EXPOSURES Q,

80 METHOD OF A

OISCOVERY DISCOVERY DESCRIPTION L.!J~~I __ O-=-pe_r_a_t_o_r_o_b_s_e_r_v_a_t_i_o_n ________ __.

45 46 45 LOCATIO.N OF RELEASE @

Liquid waste system to river 80 80 NUMBER

~

TYPE DESCRIPTION~

[QI] j O l O I OJ~@L...-__

N_A _____________________

7 8

9 11 12 13 80 NUMBER DESCRIPTION 41 PERSONNEL INJURIES

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[TITI j O ! O I O l@L--___

A ______________________

---i 7

8 9

11 12 80 LOss*oF OR DAMAGE TO FACILITY '43' TYPE

DESCRIPTION

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DJI) ~~1--__

N_A ____________________________________________________ ----1 7

8 9

10 80 PUBLICITY G\\

NRC USE ONLY ISSUED/,;";\\ DESCRIPTION~

0 G:I2] L!!J~L...--NA ___________________ --=-----~

I I I I I I I I I I I I Ii 7

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?/:...""'-

68 69 80 ;

s 003170~~1:t4' 0

NAME OF PREPARER-..M1W._..1.I-.... Si.,,t.iae~r,,..1a1-1r.... t----------

P.HON E:------1(-.i:S"Q~/.~1 )~J~§~7.;.-J~1~g4l1-

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ATTACHMENT (PAGE 1 OF.l)

SURRY POWER STATION, UNIT l DOCKET NO: 50-280 REPORT NO: 80-016/03L-O EVENT DATE:

2-18-80 TITLE OF REPORT:

Liquid Waste Inadvertent Release

1.

DESCRIPTION OF EVENT

With the unit at 100% power, Liquid Waste Test 1-LW-TK-llb, was inadvertently released without being sampled.

This is contrary to T.S. 3.11.A.4 and reportable per T.S. 6.6.2.b.2.

2.

PROBABLE CONSEQUENCES AND STATUS OF REDUNDANT SYSTEMS:

The operator in the Control Room was monitoring tank level and immediately terminated the release when the level in 1-LW-TK-llB changed.

Also, the monitor in the discharge line was operable and would have terminated the release if the activity had exceeded preset limits.

Therefore, the health and safety of the public were not affected.

3.

CAUSE

OF EVENT:

Liquid Waste Test Tank 1-LW-TK-llA had been sampled and was ready for release.

However, when performing the necessary valve lineups, the discharge valve from 1-LW-F-llB was opened instead of the valve for 1-LW-P-l lA, resulting in 1-LW-TK-llB being partially released.

4.

IMMEDIATE CORRECTIVE ACTION

s.

The release was terminated and tank 1-LW-TK-llB was sampled.

Based on the sample, an estimate was made as to the amount and activity released and verified to be within allowable limits.

SCHEDULED CORRECTIVE ACTION:

None required.

6.

ACTION TAKEN TO PREVENT RECURRENCE:

Operators have been instructed to insure proper valve lineups are performed prior to commencing liquid waste releases.

7.

GENERIC IMPLICATIONS:

None.

(7-77) ecENSEE EVENT REPORT e

CONTROL BLOCK: I 10 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1L.. -.L.---'--.L.---'--'---'6

_[il~l IV J A I s Ip I s I 1 101. 01 °1 7

8 9

LICENSEE CODE 14 15

- I o I o I o I o I o 1-Io I o 1014 I 1 11 11 I 1 101 I I 0 LICENSE NW;18ER 25*

. 26 LICENSE TYPE

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57 CAT 58 CON'T

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7 8

~~~~~ L:'.J©I 9 s1 01 01 01 21 s1 0101 01 21 11 s1 s1 ojG)! 01 3! 114 Is lo 10 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

~

I With unit.at 100% power, the vacuum pump for process vent monitors RH-GW-101 and

. I RM-GW-102 was found tagged out of service.

The pump had been out of service for app-I roxima tely two days, and the applicable pr*ocedures were not pe rfonned prior to tag-outf.

This is contrary to T.S. 3.11.B.5 and T.S. Table 3.7-5 and reportable per T.S. 6.6.

2.b.2.

During the period the monitors were out of ser-v*ice, no releases were made

- 1 I

[]JI] I from the waste gas decay tanks.

A review of the accountability records revealed thatj ITITJ the activity levels released during the period were well within allowable limi*ts.

Th 7

8 9 an sa ety o t e pu ic were not affected.

ITIIl 7

8

'SYSTEM

CAUSE

CAUSE CODE CODE SUBCODE COMPONENT CODE I Mj c1@ ~@ ~@., z I z., z I z I z I z,e 9

10 11 12 13 18 SEQUENTIAL OCCUF1RENCE REPORT NO.

CODE I O I 1 17 I I /I IO 13 I 23 24 26 2 7 28 29

~

LEA/RO c-VENTYE.A.R

\\:.:,J REPORT j 8 j O !

NUMBER 21 22 l:::.I COMP.

SUBCODE L21 19 REPORT TYPE

~

30 VALVE SUBCODE

~@

20 l=1 31 ACTION FUTURE EFFECT SHUTDOWN

~

ATTACHMENT NPRD-4 TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM :;us.

PRIMEC::OMP.

SUPPLIER

~@L:J@ ~@ U I. 9 9. 9 9 LJ@ LI@

33 34 35 36 31 40 41 42 CAUSE DESCRIPTiON AND CORRECTIVE ACTIONS @

LI@

43 REVISION NO.

~

32 COMPONENT MANUFACTURER 80 j Zj 9j 9! 9!@)

44 47 The failure to perform the applicable procedure prior to taking the vacuum pump out of(*

OJI]

service led to the release of unmonitored gases.

The immediate action taken was.to O:I[f perform AP-5.16, Radiation Monitoring System Process Vent Particulate & Gaseous Mal-

[II)) I function, noti_fy Health Physics and analyze the accountability data.

The system was.

o:r:rJ I returned to normal operation, i.e. the vacuum pump was returned to* service.

7 8

9 FACILITY

'Jo' STATUS

% POWER OTHER STATUS \\:::::J METHOD OF

(.;;\\

80 [IE] L..!J@ 11 1 ° I O l@.... I NA _____

8 9

10 12 1"3 OISCOVERY DISCOVERY DESCRIPTION ~

LI""l _Op....;;..e_r_a_t_o_r_o_h_s_e_rv_a_t_i_o_n ________ _..

ACTIVITY CONTENT

~

RELE2SED OF RELEASE AMOUNT OF ACTIVITY ~

DJI) l:J@) l..:J(§._j ___

NA ____

7 8

9 10 11 44 7

45 46 44 NA LOCATION OF RELl;ASE @

80*

45 80 PERSONNEL EXPOSURES t::;:;,.

NUMBER

,,;:;,.. TYPE

DESCRIPTION

!JJI] I o, I ~~@.__ ___

NA _______________

.....,... ______ ~

7 8

9 11 12 13 80 PERSONNEL INJURIES

~

cruMaER DESCRIPTION 41

~

I I I 0 1@.__ _________________ -,-------~

7 8

9 11 12 80 LOSS OF OR DAMAGE TO FACILITY ~

TYPE

DESCRIPTION

'..::::J

~

~(§}L--_NA ___ ~----------'----------...;.._-------------~

1 s Is 10 so PUBLICITY

(';";;\\

NRC USE ONLY ISSU~D~ DESCRIPTION~

0 [ill] l.::J~......__N_A ___________________ ___.

I I I I I I I I 11 I I I~

7 8

9 10 68 69 80 ai NAME OF PREPARER w I, Stewart PHON E:---(...igM.0"'14-+)-J~j~7f-,,!.JMl~i..+4--

0 a.

C e

ATTACHMENT (PAGE 1 OF 1)

SURRY POWER STATION, UNIT 1 DOCKET NO:

50-280 REPORT NO: 80-017/03L-O EVENT DATE:

2-18-80 TITLE OF REPORT:

Inoperability of Radiation Monitors (RH-GW-101, 102)

1.

DESCRIPTION OF EVENT

With the unit at 100% power, the vacuum pump for process vent monitors RM-GW-101 and RM-GW-102 was found tagged out of service.

Further in-vestigation revealed the pump had been out of service for approximately two days and that the applicable procedure was not performed prior to the tag-out.

Titis is contrary to T.S. 3.11.B.5 and T.S. Table 3.7-5, and is reportable per T.S. 6.6.2.b.2.

2.

PROBABLE CONSEQUENCES/STATUS OF R~DUNDANT SYSTEMS:

3.

4.

During the period the monitors were out of service, no releases were made from the waste gas decay tanks and the H.P. accountability sampling system was in operation.

• A review of the accountability records revealed that

.the activity levels released during the period were well within allowable limits.

Therefore, the health and safety of the general public were not affected.

CAUSE OF EVENT

The failure to perform the applicable procedure prior to taking the vacuum pump out of service led to the release of unmonitored gases, although that which was released was well within the allowable activity limits.

IMMEDIATE CORRECTIVE ACTION

The immediate a~tion taken was to perform AP-5.16, Radiation Monitoring System Process Vent Particulate and Gaseous Malfunction, notify Health Physics and analyze the accountability data.

5.

SCHEDULED CORRECTIVE ACTION:

The system was returned to normal operation, i.e. the vacuum pump was returned to service.

6.

ACTION TAKEN TO PREVENT RECURRENCE:

Operations personnel were reinstructed to insure that the appropriate procedures are performed prior to removing the process vent monitors -

from service.

7.

GENERIC IMPLICATIONS:

None.