ML20083J050

Public Version of Rev 3 to Emergency Plan Implementing Procedure EPP-020, Emergency Personnel Exposure Control. Revised Table of Contents Encl

ML20083J050
Person / Time
Site:	Summer
Issue date:	11/14/1983
From:	Bradham A, Counts M SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20083J039	List: ML20083J050
References
EPP-020, EPP-20, NUDOCS 8401050111
Download: ML20083J050 (9)

Text

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g VIRGIL C. SUMMER NUCLEAR STATION NUCLEAR OPERATIONS PROCEDURES EMERGENCY PLAN PROCEDURES TABLE OF CONTENTS

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PROCEDURE DATE NUMBER PROCEDURE TITLE REVISION ISSUED EPP-001 Activation and Implementation of Emergency Plan 6 11/9/83 EPP-002 Communication and Notification 8 11 /9/83 EPP-003 In-Plant Radiological Surveying 3 6/1/83 EPP-004 Out-of-Plant Radiological Surveying 4 5/25/83 ,

EPP-005 Offsite Dose Calculations 5 11/9/S3 EPP-007 Environmental Monitoring 1 7/27/82 EPP-009 On-Site Medical 2 7/27/82 EPP-010 Personnel / Vehicle Decontamination 3 '11/9/83 EPP-011 Personnel Search and Rescue 2 7/27/82

' EPP-012 Onsite Personnel Accountability & Evacuation 4 5/25/83 ,

l EPP-01~ Fire Emergency 3 5/25/83 EPP-014 Toxic Release 1 7/27/82 EPP-015 Natural Emergency (Earthquake, Tornado) 3 11/9/83 EPP-016 Emergency Facilities Activation & Evacuation 4 11/9/83 EPP-017 Post-Recovery and Re-Entry 4 11/9/83 EPP-018 Emergency Training and Drills 3 11/10/83 EPP-019 Emergency Equipment Checklist 4 6/1/83 EPP-020 Emergency Personnel Exposure Control 3 11/14/83

• Safety Related Procedure -

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'PROCEDUP3 .DATE NUMBER PROCEDURE TITLE REVISION ISSUED EPP-021 Activation of the Early Warning Siren

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, J EPP-022 Verification of Communicationa Operebility 2 5/25/83 e

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, SOUTH. CAROLINA ELECTRIC AND GAS COMPANY VIRGIL C. SUMMER NUCLEAR STATION

'd NUCLEAR OPERATIONS NUCLE /0 CPERATiOMS COPY No.........I M EMERGENCY PLA

N. PROCEDURE

EPP-020 EMERGENCY PERSONNEL EXPOSURE CONTROL REVISION 3 I

NOVEMBER 3, 1983 l l

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APPROVAL AUTHORITY

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NOV 141983 DATE ISSUED RECORD OF CHANGES

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CHANGE TYPE DATS DATE CHANGE TYPE DATE DATE NO. CHANGE APPRCVED CANCELLED NO. CHANGE APPROVED CANCELLED l-l . ,

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. EPP-0 20 PAGE i '

O 'v REVISION 3 11/3/83 T.IST OF EFFECTIVE PAGES Page  : ', ? Revision

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2 2 3 2 4 3 5 3 .

ATTACHMENTS Attachment I 2 Attachment II 3

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EPP-020 REVISION 3 11/3/83

(~h y ' .? 1.0 PURPOSE 1.1 Provide guidelines for-issuing dosimetry and controlling j personnel exposure when responding to conditions that have i placed the plant in an Alert, Site, or General Emergency status.

2.0 REFERENCES

l 2.1 Virgil C. Summer Nuclear Station Radiation Emergency Plan.

2.2 100FR20.

23 NCRP Report #39 " Basic Radiation Protection Criteria".

2.4 HPP-153, " Administrative Exposure Limit s" .

25 RPP-150, "Issusnce and Control of Personnel Dosimetry.  ?

2.6 HPP-505, " Issuance and Con +.rol of Personnel Dosimetry".

27 NCEP Report #55, Protection of the Dayroid Gland in the Event of Relecses of Radioiodine.

2.8 CHP-309, Emergency Operations Facility Dose Assessment C'~

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Gaidance.

30 CONDITIONS AND PREREQUISITES 31 Limits and Precautions.

3 1.1 This procedure may be activated by the Interin Energency Director / Emergency Director or Radiological Assessment Supervisor when conditions dictate. Any deviations from this procedure should be authori~ zed by the Interim Emergency Director / Emergency Director or Radiological Assessment Supervisor snd docunented. As soon as conditions allow return to normal plant procedures.

32 In an emergency, the following exposure limits may be utilized:

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EPP-020 REVISION 3 11/3/83 bl xt 4.2 3 As soon as conditions allow and at the d'irection of the Interim Emergency Director /Erergency Director or the Radiological Assessment Supervisor, normal dosimetry issue and exposure control should be reinstituted in accordance with references 2.4 and 2 5. l 4.2 4 Responsibilities of Health Physics:

1 a) Proper collection of dosimetry.

b) Completion of dose cards and Attachment I's.

c) Completion of all required personnel exposure records.

43 Use of KI thyroid blocking agent.

431 The Director of Health Physics or Radiological Assessment Supervisor shall determine the need for -

administering KI (stored in the TSC) .

432 KI should be administered within one hour following an acute uptake that involves a projected thyroid exposure greater than 10 Rem. Guidelines are:

k./ 4 3 2.1 Individuals suspected to have received greater than 650 MPC-hours of internal exposure to'radiciodines should be showered and analyzed by whole body counting (torso) immediately following the uptake. Measured torso burdens greater than 4 C1 (I-131 ) may result in a thyroid exposure greater than 10 Rem.

4 3 2.2 If conditions do not allow whole body counting within two hours after the uptake, the estimated MPC-Hour exposure should be used to determine the need for KI.

4 3 2 3 KI (100-300 mg) should be taken on a daily basis not to exceed 7-10 days until the thyroid uptake of radioiodine is adequately blocked.

4 3 2.4 Any individual has the right to refuse KI and accept the resulting thyroid exposure.

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• - EFP-020

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REVISION 3 11/3/83 433 Attachment II must be c'ompleted prior to ~

administerin6 KI-44 EOF 3xposure Control.

4.4 1 EOF exposure control'will be performed in accordance with CHP-309 l

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EPP-020

,- ATTACEMENT II PAGE 1 OF 2 i i REVISION 3 v

ACUTE UPTAKES INVOLVING PROJECTED THYROID DOSE COMMITMENTS GREATER THAN 10 REM Date: Time:

MPC-HRS / Time of I-131 Torso / Time of I

- Name - --. _TLD4 Estimate / Uptake Burden (uCi) Count Time KI Taken The threshold for the pcssibility to experience thyroid abnormalities after l uptake of radiciodines is estimated at 20 Rem (low probability of i 6 x 10-4 Higher probabilities (greater than .075) exist with thyroid l exposures greater than 2500 Rem. l KI can be taken after an uptake to prevent accumulation of radioactive iodine in the thyroid due to saturation of the thyroid with stable iodine.

KI is over 90% effective if administered within one hour after the uptake and over 50% effective if administered within three to four hours after the uptake.

Usually, side effects of potassium iodide happen when people take higher

/ doses for a long time. You should be careful not to take more than the D) recommended dose or take if for longer than you are told. Side effects art.

unlikely because of the low dose and the short time you will be taking the drug.

Possible side effects include skin rashes, swelling of the salivary glands, and " iodism" (metallic taste, burning mouth and throat, sore teeth and gums, symptoms of a head cold, and sometimes stomach upset and diarrhea).

A few people have an allergic reaction with more serious symtoms. Thsse could be fever and joint pains, or swelling of parts of the face and body and at times severe shortness of breath requiring immediate medical attention.

Taking iodide may rarely cause overactivity of the thyroid gland, underactivity of the thyroid gland, or enlargement of the thyroid gland (goiter).

If side effects are noted or if you have an allergic reaction, stop taking potassium iodide. Then, notify the Director, Nuclear Plant Operations and l obtain medical assistance as needed.

The only people who should not take potassium iodide are people who know they are allergic to iodide. You may take potassium iodide even if you are taking medicines for a thyroid problem (for example, a thyroid hormone or

_ antithyroid drug). Pregnant and nursing women and babies and children can also take this drug.

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EPP-020 ATTACHMENT II PAGE 2 OF 2 O.) REVISION 3 i ACKNOWLEDGEMENT I understand and accept the risk associated with receiving KI and will i

'not hold SCE&G Company liable for any payments or costs resulting from ]

side effects excluding that provided by normal Company policies.

Signature (s) Date Time I choose to accept. thyroid exposure instead of minimizing thyroid exposure by taking KI. I will not hold SCE&G Company liable for any subsequent thyroid abnormalities which may be related to thyroid exposure.

Signature (s) Date Time

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Assoc. Manager of Health Physics (or) Director, Nuclear Plant Operations Radiological Assessment Supervisor (or) Emergency Director

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