ML17319B387

Public Version of Revision 1 to Emergency Plan Procedure PMP 2080 EPP.010, Toxic Gas Release Guidelines.

ML17319B387
Person / Time
Site:	Cook
Issue date:	06/04/1982
From:	INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17319B385	List: ML17319B386 ML17319B387
References
PMP-2080-EPP.01, PMP-2080-EPP.1, NUDOCS 8206230050
Download: ML17319B387 (9)

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IIIIDIANAIII MICHIGAN ELECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT PROCEDURE COVER SHEET pfooecIUfeNoPNP %80 EPP.010 Revision No. I TITLE TOXIC GAS RELEASE GUIDELINES SCOPE OF REVISION Rev. I - This procedure was revised to incorporate specific guidelines to determine if a toxic gas condition exists. Incorporated are two reference documents.

JUN 0488~

SIGNATURES ORIGINAL Rev. I Rev. 0 PREPARED BY QUALITY ASSURANCE REVIEVI INTERFACING DEPAR I'MENT HEAD CONCURRENCE N.A.

DEPARTMENT HEAD APPROVAL N.A.

PLANT NUCLEAR SAFETY COMMITTEE PLANT MANAGER APPROVAL DATE OF ISSUE 3-31-81 Fccm No. PMl 2010-l - aav. s 8206230050 8206 17 PDR ADGCK 05000316' PDR"->>'

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PM 080 EPP.010 LIST OF EFFECTIVE PAGES Page Numbers Revision Number and Date Page 1 of 3 Revision 1 - 6/2/82 Page 2 of 3 Revision 1 - 6/2/82 Page 3 of 3 Revision 1 - 6/2/82 CHECKL I ST Page 1 of 1 Revision 0 - 3/31/81 Page 1 of 1 Revision 1 - 6/2/82

PMP 080.EPP.010 INDIANA & MICHIGAN ELECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT TOXIC GAS RELEASE GUIDELINES

1. 0 OB JECTI YES This procedure provides the actions to mitigate unplanned toxic gas release conditions to improve plant and personnel safety. Toxic gases may originate from on or off site.

2. 0 RESPONSIBILITIES The Shift Supervisor is responsible for directing initial mitigating actions. The Plant Chemical Supervisor will assume responsibility for directing mitigating actions when he arrives on site. He is responsible for determining the size and personnel required for the Reentry and Rescue teams.

3. 0 APPLICABILITY 3.1 The. greatest sources of toxic gases are most likely from off site. All steps in this procedure may not apply for this case. For releases originally off site, DCCNP personnel may be called upon to assist the Berrien County Sheriff's Department or the Michigan State Police. 'Ilhen called upon to assist off site agencies, DCCNP response shall be limited to technical support only.

3.2 The determination that a toxic gas release situation exists may be made by either on site or off site personnel. If the determination is made by off site personnel, they will identify the toxic substance and determine or establish the toxic limits. If the determination is made by on site personnel, they should clearly define or state the toxicity limits for the material in question and what reasonable chance there is of such a concentration existing'o 3.3 determine if a toxic gas situation exists, the following steps should be taken:

3.3.1 Using "Toxic and Hazardous Industrial Chemicals Safety Manual (for Handling and Disposal with Toxicity and Hazard Data)" - International Technical Information Institute, as a reference, determine if a toxic level of the chemical is listed.

3.3.2 If a toxic level is listed, determine if site condi ti ons meet or exceed these limits.

Page I of 3 Revision I - 6/2/B2

PMP 2080. EPP.010 3.3.3 If no toxic levels (for man) are listed, then refer to the "N!OSH/OSHA Pocket Guide to Chemical Hazards". Half the IDLH (immediately dangerous to life and health) levels will then be assumed to be the toxic levels.

3.4 If the spill or near spill involves a chemical that is not listed as toxic or exists at a concentration that is not above toxic levels (see 3.3 above), implementation of this Emergency Plan procedure is not warranted at this time. The situation should be monitored closely to detect any changes that would affect this decision. In such events, appropriate actions (cleanup, partial evacuation, work restriction, or respiratory protection use) should be taken to control or eliminate the hazard under the direction of the Plant Chemical Supervisor or other qualified personnel.

4.0 INSTRUCTIONS j/OPTIONAL CHECKLIST ENTRY PROVIDED 4.1 The Shift Supervisor upon receiving report of toxic gas shal l:

n4.1.1 Assume the role of On Site Emergency Coordinator.

84..1.2 Direct control room operators. to activate the control room pressurization system whenever a toxic or unknown gas is detected in the control room by one or more of the human senses.

NOTE: THE CONTROL ROOM SHALL REMAIN ISOLATED UNTIL THE SOURCE IS FOUND OR A DETERMINATION IS MADE THAT THE HAZARD NO LONGER EXISTS. (SEE ATTACHMENT 1 TO AEP NRC:

00398C.)

Pr4. 1.3 Activate a Reentry and Rescue Team (see 2.0 above).

4. 1.4 Direct the verification of the existence of a toxic gas release. This includes identifying the toxic substance if possible, determining the concentration of the toxic substance if possible, determining the extent that the toxic gas plume has affected site areas or personnel, and identifying the source of the toxic gas. Care should be exercised to prevent unnecessary exposure to any potentially toxic material.

84.1.5 Maintain surveillance over the situation, direct all required emergency operations, and diagnose extent of emergency.

Page 2 of 3 Revision 1 - 6/2/82

PMP 2080.EPP.010 4.1.6 Initiate protective actions, as necessary, per PMP 2081. EPP. 004.

4.1.7 Prepare for site evacuation, if indicated, per PMP 2081. EPP. 005.

84. l. 8 Escalate or terminate the emergency based on RRT reports.

4.2 The Chemical Supervisor, as Reentry and Rescue Team (RRT)

Leader, (upon notification) shall:

4.2.1 Proceed to the access control area or the scene of the leak as directed and assume command of the RRT and operations.

4.2.2 Issue equipment and brief team members'hen 4 '.3 team reaches effective strength, initiate movement to location(s) of release.

4.2.4 Direct rescue and personnel safety operations at location of toxic gas release.,

4.2.5 Respond to instructions from the OSEC.

Coordinate operations of Reentry and Recovery Team 4.2.6'.2.7 as'ecessary.

Take actions as appropriate to protect life and prevent injury, e.g., proceed downwind to alert personnel.

4.2 ' Report personnel safety status and the need for additional support to the OSEC.

4.3 The Chemical Supervisor shall ensure that personnel:

4.3.1 Take actions to reduce or shut off escapin'g gas.

4.3.2 Take actions to isolate inhabited areas from gas, e.g. close building intake vents.

4.3.3 Direct the restoration of integrity of the toxic gas piping and storage containers.

4.3.4 Coordinate operations with the Reentry and Rescue Team.

4.3.5 Report repair and damage control status and whether situation is escalating or under control.

Page 3 of 3 Revision 1 - 6/2/82

PMP 2080.EPP.010

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CHECKLIST TOXIC GAS RELEASE GUIDELINES SOE/OSEC Role of On Site Emergency Coordinator Assumed:

ni tl a s lme Control Roan Directed to consider isolation:

Initials 8 Time Reentry and Rescue Team Activated:

nitia s 8 ime Exact nature and extent of gas release di ag nosed:

Initials 5 Time Emergency Terminated:

Initia s 6 Time Emergency Escal ated:

Refer to:

Initials 5 Time Page 1 of 1 Revision 0 - 3/31/81

PMP EPP INDEX IIVDIAiVA Zi', I tICHIGAN PObiER COMPAi'IY DOiVALO C. COOK IVUCL~~R PLAiVT P ANT MANA PR I dnev Identificat-'on Ti tl e Revision Ho.

Comments Humt:er And Oato PMP 2080 EPP.001 Emergency Plan Activation Revision 2 TP-1,5-27-82 Exp NA and Condition Classification 4-27-82 EPP.002 Unusual Event CANCELLED 10-29-81 EPP.003 Alert CANCELLED 10-29-81 EPP.OO Site Emergency CANCELLED 10-29-81 EPP:00 General Emergency CANCEL ED 10-29-81 EPP.006 Initial Dose Assessment ivev. 2 (Gaseous) 4-27-82 EPP.007 Initial Release Assessments Revision 0 TP-1,2-23-82 Exp NA (Liquid) 4-1-81 EPP.008 Calling Off-Duty Plant Revision 1 P-1,4-30-82 Exp N/A Personnel 4-29-82 EPP.009 Fire Emergency Guidelines Revision 0 4-1-81 EPP.010 Toxic Gas Release Guidelines Revision 1 6-2-82 EPP.011 Natural Emergency Guidelines Revision 0 4-1-81 EPP.012 Initial Off-Site Notificatio~ Revision 1 4-27-82 Re'I. na-

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