ML20034C779

Issue 57 to Abnormal Operating Procedure AOP-H-3, High Activity in Plant

ML20034C779
Person / Time
Site:	Fort Saint Vrain
Issue date:	04/19/1990
From:	PUBLIC SERVICE CO. OF COLORADO
To:
Shared Package
ML20034C092	List: ML20034C091 ML20034C775 ML20034C776 ML20034C777 ML20034C778 ML20034C779 ML20034C780 ML20034C782 ML20034C783 ML20034C784 ML20034C785
References
AOP-H-3, NUDOCS 9005100038
Download: ML20034C779 (4)

Text

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. (q Issue 57-OPublic.

FORT ST. VRAIN NUCLEAR GENERATING STATION Page;1-of 2.

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PUBL8C SERVICE COMPANY OF COLORADO --

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O TITLE:

HIGH ACTIVITY IN THE PLANT-

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AUTHORIQ 7

BY PORC PORC 8'7 7 A3R 11 IWWW.

EFFECTIVEN-$-$D REVIEW -

DATE DCCF NUMBER (S)

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VERIFY ISSUE STATUS l

WITH SITE DOCUMENT _

CONTROL CENTER PRIOR TO USE j

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Issue 57--

'Page 2 of 2

( ll-3 )

!I1Gil ACT IVI TV IN THE Pt AM SYMPIOM-ACT10N MATR1X I

1 SYMPIOMS.

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ACTIONS

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.I 1 OP[RATOR ACTION i

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Sound the I

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local alarm in the fuel Storage Building would alert personnel.of a criticality accident during new.

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.AOPJAPP.H-3 Issue 57

' Public FORT ST. VRAIN NUCLEAR' GENERATING STATION "9'

service

• Pusuc sanvoca COMPANY OF COLORADO O

DISCUSSION OF SYMPT 0MS SYMPTOMS l

1.1 Gas Waste Compressor Cooling Activity Hith'RIS-46212,

l

'I-03A, 4-6, RIS-46211, 1-13C, 1-5.

RIS-46211 and RIS-46212 are in series on the discharge

piping of the-Gas Waste Compressor's cooling water, and monitor for cooling' jacket leaks which could allow contaminated-gases to enter the service: water system.

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-1.2 Area Monitor Activity High I-01C, 4-1.

Twenty monitors placed in various locations in-the Reactor, Turbine, and Service Building continuously,

'l monitor for radiation in the plant environment.

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1.3_. Activity Detected Locally.

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It is possible that personnel could detect activity locally with:the use of the Continuous Air-Monitors (CAMS), portable instruments, or Health Physics surveys l;

before a level was reached that would alarm one or more of-the permane'ntly installed monitors.

l 1.4 Critically Alarm Fuel Storage Building.

A local alarm in=the Fuel Storage Building would alert

.i personnel of a criticality accident during new fuel

(

handling.

DISCUSSION OF OPERATOR ACTIONS ~

OPERATOR ACTIONS 2.1 Determine source of radiation.

i a)

Check System 63, Radioactive Gas Waste.

b)

Check System 23, Helium Purification, c)

Check System 11, PCRV Auxiliary Piping, d)

Check System 13, Fuel Handling Purge.

e)

Check System 14, Fuel Storage Building.

O FORM (ol372 22 341 1

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A0P APP H l Issue 57.

1. 9' U

APublic FORT _ ST. VRAIN NUCLEAR GENERATING STATION

%F Service *-

rusuc sanwen COMPANY OF COLORADO p

4 i

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If the activity is coming from one of the plant systems, prompt operator action can greatly reduce. the extent of the problem. The above systems ware identified as the most likely and extensive sources' of potential leakage, l

but are not the only possible sources of activity.

2.2 Evacuate affected' area.

If control room, evacuate per l

AOP-R.

Sound the radiological alarm.

.l Personnel should^be evacuated from area of radiation:

exposure and directed to the Health Physics Access Area i

for contamination' checks to avoid the spread of contamination. Sound the plant Radiological Alarm under the_ conditions specified.in Administrative Procedure G-5, i

Personnel Emergency Response, t

2.3 _ Shutdown affected gas waste compressor ~and manually isolate the cooling water.

If a gas waste compressor. cooling jacket-develops a leak, it must be isolated to avoid' contaminating the service water system.

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l 2.4 Notify Coritrol Room.

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-Q The Control Room is the focal point of plant N

communications and control. Plant personnel are at the disposal of the Shift Supervisor to perform whatever tasks may be necessary to deal with the specific situation.

t However, personnel should not be needlessly exposed to radiation and should be directed away from areas of radiation expcsure if they are not needed.

l 2.5 Attemot to isolate / remedy radiation source.

l 2.6 Ensure CAS-reports personnel accountability.

Initiate search if necessary.

This will insure that all personnel are safe and accounted for or wnether a search for missing persons needs'to be started..

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. FORM (DW72 22 3643

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