ML20054J982

Offnormal Event Procedure 05-1-02-II-11, Liquid Radwaste Sys or Failure,Safety-Related, Revision 10

ML20054J982
Person / Time
Site:	Grand Gulf
Issue date:	03/17/1982
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20054J949	List: AECM-82-280, Forwards 37 Offnormal Event Procedures in Response to ACRS Subcommittee Request at 810917-18 Meeting ML20054J952 ML20054J953 ML20054J963 ML20054J965 ML20054J968 ML20054J971 ML20054J972 ML20054J974 ML20054J975 ML20054J979 ML20054J980 ML20054J982 ML20054J983 ML20054J986 ML20054J990 ML20054J992 ML20054J993 ML20054J996 ML20054J998 ML20054J999 ML20054K001 ML20054K004 ML20054K008 ML20054K009 ML20054K012 ML20054K013 ML20054K016 ML20054K019 ML20054K021 ML20054K024 ML20054K026 ML20054K030 ML20054K031 ML20054K033 ML20054K034 ML20054K036 ML20054K039 ML20054K040
References
05-1-02-II-11, 5-1-2-II-11, NUDOCS 8206300263
Download: ML20054J982 (3)

Text

,e PLANT OPERATIONS MANUAL

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Volume 05 05-1-02-11-11 ~

Section 02 Revis ion: 10 Date: 3-17-82

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0FF-NORMAL EVENT PROCEDURE LIQUID RADWASTE SYSTEM LEAK OR FAILURE SAFETY RELATED

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Prepared: h 1 /

Reviewed: M [1 M . w . # 2 d e / - # ^

^/ Nuclear Plant Quality Juperintendent g Technical Review Reviewed: / /ybw- w

, O perat ions Superintendent Approved: , !z As'sistant Plant Manager i PSRC: . (f/bb '

i i List of Ef feetive Pages:

Pane: Rev is ion :

1-2 10

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8206300263 820625 PDRADOCK05000g P

OFF-NORMAL EVENT PROCEDURE

. . CRAND CULF NUCLEAR STATION e '

l Tit le : Liquid Radwaste System (No.: 05-1-02-11-!! ( Rev is ion : 10 IPage: l i l 1.eak or Failure I l l l

(~.e 1.0 PURPOSE / DISCUSSION 1.1 The purpose of this procedure is to provide instruct ions to the operator for detect ing and correct ing a Liquid Radwaste System Leak ot- Failure.

1.2 This procedure may interface with the Emergency Plan and Of f Normal Event Procedures.

1.3 Th is procedure will cover a failure of the Process Liquid Radwaste System, worst case being the rupture of one of the Evaporator Bottom Storage tanks, to a system leak from valve or pump packing or piping i failures. Airborne act ivity will be experienced, along with some radiation hazards.

2.0 SYMPTOMS 2.1 Unexplained decrease of Storage Tank Level as indicated by a remote level ind ica t ion. ,e 2.2 Exc e s s iv e pumpage from t Floor Drain Sump.

2.3 Visual observation of flow om tank or unusual residue on floor.

2.4 Radwaste Building Area Radiation Monitor Alarms.

( 2.6 Increase in airborne act ivity in Radwaste.

3.0 AUTOMATIC ACTIONS 3.1 If the Of f-Gas and/or Radwaste Building Vent ilat ion Radiat ion Monitor reaches the liigh-liigh setpoint , the Radwaste Building Exhaust and Supply Fans will trip and associated dampers will shut.

? 3.2 The Floor Drain Sump Pumps will pump the liquid to the Floor Drain Collector Tank.

4.0 IMMEDIATE OPERATOR ACTIONS 4.1 Verify the appropriate automat ic actions have occurred.

I l 4.2 If the area has high airborne or high radiat ion, evacuate the af fected areas immediately and restrict access to the area.

4.3 If the Radwaste Building Vent ilat ion should have isolated but did not shutdown, manually shutdown the Radwaste Vent ilation System in

accordance with SQL 04-1-01-V41-1.

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l l

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CRAND CULF EUCLEAR STATION OFF-fl0RMAL EVEtiT PROCEDURE l

Title:

Liquid Radwaste System lNo.: 05-1-02-11-11 ( Rev is ion : 10 (Page: 2 l l Leak or Failure l l l l 4.4 Isolate the leak or in put s into the tank, if possible drain the leaking ,

system or tank to another tank or sump.

4.5 Contact the llealth Physics group to survey the area for radiat ion levels and airborne levels.

5.0 SUBSEQUENT ACTIONS 5.1 Proceed to implement the Emergency Plan as directed by the Shi

Supervisor or Shif t Superintendent.

i 5.2 If high airborne exists, implement ONEP 05-1-02-II-9, liigh Airborne.

5.3 Following proper radiat ion control measures, remove the spill residue.

5.4 Ut ilize an alternate rout ing of liquid radwaste , if available.

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