ML20034C777
| ML20034C777 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 04/19/1990 |
| From: | PUBLIC SERVICE CO. OF COLORADO |
| To: | |
| Shared Package | |
| ML20034C092 | List: |
| References | |
| AOP-H-1, NUDOCS 9005100031 | |
| Download: ML20034C777 (4) | |
Text
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AOP H-1
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. Issue 57 bb o
Public PORT ST. VRAIN NUCLEAR GENERATING STATION Page 1 of 2 f
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Pusuc sanvoce COMPANY OF COLORADO i
O TITLE:
ABNORMAL RADIOACTIVE LIQUID WASTE FROM PLANT W ]\\
RESPONSIBLE 4)l. i IVn a j e FOR AUTHORt{ED T(
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PORC PORC 8 7 7 APR 111990 5'fr',CTIVE REVIEW i
DCCF NUMBER (S) - kO.h) M l
Q FT. ST. VRAIN F
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TO USE i
9005100031 900427 ADOCK050g27 DR FORM (D)372 22 3842
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i AOP H-1 1
Issue $7 Page 2 or 2 (H-1)
ABilORMAL RADIOACTIVE LIQUlp__R[ TEASE FROM PLA88T.
SYMPTOM-ACTIOtt MATRIX f
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SYMPTOMS I
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1.1 1
1.2 1
1.3 1
1.4 I
I ILiquid Waste ILiquid Weste ILiquid Waste IAny Release in i I
ACTIONS IActivity digh -IActivity High_ ICooling Water IExcess of' Limitst I
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IMixing Flow LowlSet Forth On Thel 1RIS-6212, IRIS-6213, IFSL-4101-1, IAuthorization-1 i
I li-03A, 2-6 11-01C, 5-4 II-01A.-4-3 IForm For The i
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.lRelease Of Rad-I I
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Ji floactive Wastes i I
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I l 8 OPERAIOR ACT ION I
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I 2.1 1
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.XX 1
. XX l I Dispatch operator to I
XX 4 XX i I
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I verify HV-6212 and i
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'l' 4 HV-62249 are closed.
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XX I I
I Ensure' reactor building i
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i sump pumps a re tripped, I
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I and place handswitch in
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I l-l 1 PTL.
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I II 2.3 I
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I Ensure liquid waste 1
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I transfer pumps are f
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I tripped.
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I I Terminate release i
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AOP APP H-1 L
Issue 57-Public -
FORT ST. VRAIN NUCLEAR' GENERATING STATION "9'
$9fVICO*'
Pusuc sanvoca COMPANY OF COLORADO INTRODUCTION Abnormal-radioacth ity is an indication.that something is urong with the systems for containment, control and/or disposal of radioactive-materials in the plant. Malfunction of these systems poses a direct q
hazard to the health'and safety of the public and, as such,1must be immediately dealt.with. In order to detect such malfunctions, radiation monitors are located in and around the general plant area, 1
and also associated with certain components of particular interest, I such as the cooling tower blowdown discharge line, the plant stack, etc. All these detectors produce alarms in the Control Room whenL their setpoints are exceeded.
In addition, some radiation detectors initiate automatic actions to control or terminate activities that may be the cause of the abnormal radioactivity..
l This Abnormal Operating Procedure deals with situations that may be.
associated with the detection of abnormal radioactive liquid; waste.
High radiation levels.may be detected in the cooling tower blowdown discharge line during the process of disposal of liquid radioactive wastes.
In this case the automatic action-will terminate the disposal process.
ABNORMAL RELEASE TO COOLING TOWER BLOWDOWL DISCUSSION OF SYMPTOMS SYMPTOMS 1.1 Liquid Waste Activity High RIS-6212, I-03A, 2-6 1.2 Liquid Waste Activity High RIS-6213, 1-01C, 5-4 1.3 Liquid Waste Cooling Water Mixing Flow Low FSL-4101-1, I-01A, 4-3 If either of the liquid waste discharge monitors detects l
radiation levels in excess of 0.0001 microcuries/cc (1.1 and 1.2), or if the cooling tower blowdown flow rate falls below 1100 gpm (l.3), the discharge of liquid radioactive waste is automatically terminated.
1.4 Any Release In Excess Of Limits Set Forth On The Authorization Form For The Release Of Radioactive Wastes.
Each planned discharge of radioactive material must be a
specifically approved and documented on an authorization form (see Administrative. Procedure P-3).
The authorization may set specific limits on quantities and.
radiation levels. The discharge should be terminated if O.
any of the stipulations of the authorization form are not met.
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FORM (01372 22 3643
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/i Public FORT ST. VRAIN NUCLEAR GENERATING STATION Page 2 of 2 e'
Service
- Pusue sERMCE COMPANY OF COLORADO 1.4 Any Release In Excess Of Limits Set Forth On The.
Authorization Form For The Release Of Radioactive Wastes.
Each planned discharge of radioactive material-must be specifically approved and-documented on an authorization-form (see Administrative Procedure P-3). The authorization may set' specific limits on quantities and-radiation levels. The discharge should be terminated if-any of the stipulations of the authorization form are-not met.
DISCUSSION OF OPERATOR ACTION
, OPERATOR ACTION 2.1 Dispatch Operator to verify HV-6212'and'HV-62249 are closed.
An operator is dispatched to insure that the. discharge from the liquid radioactive waste. system has been
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terminated. HV-62249 is provided with local-indicator i
lights.
l 2.2 Ensure reactor building sump pumps-are tripped, place-O handswitch in PTL.
The operator acts.as backup to the automatic action and 1
verifies that the Reactor Building sump: pumps are tripped.
To insure that the Reactor Building sump pumps do not-automatically restart, the hand switch-is placed in the pull to lock (PTL) position.
2.3 Ensure liauid waste transfer pumps are' tripped.
The operator acts as backup to the automatic action and j
verifies that the transfer pumps are tripped. Tripping the pumps provides additional assurance that the discharge i
is terminated.
i 2.4 Terminate release (operator initiated).
l In the event that automatic action has not terminated a I
possible abnormal liquid waste release, the operator will manually terminate tne release. Manual termination of the release may be accomplished by lowering the cooling tower blow down flow rate or manually trip RIS-6212 or RIS-6213.
O FORM (D)372 22 3843 i
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