ML20091B068

Rev 4 to Procedure 1903.021, Arkla Natural Gas Line Rupture

ML20091B068
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/18/1992
From:	ENTERGY OPERATIONS, INC.
To:
References
1903.021, NUDOCS 9203300362
Download: ML20091B068 (5)

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I ARKANSAS NU; LEAR ONE fI

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.l' ARKAN4A5 NUCLEAR ONP l 1 RUSSELLVILLE, AR(ANSAS I l DATE: 923313 l l

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l l-PROCEDURE / FORA TITLE: AR(LA NATURAL GAS LINE RUPTURE l-1 I

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%gprRf E ERGY ARKANSAS NUCLEAR ONE ARKLA NATURAL GAS LINE RUPTURE PROC / WORK PLAN REv.

TITLE: 4 NO. 1903.021 P

SAFETY RELATED DT YES X- NO 1

Page 1 of Page Rev Chg Page Rev Chg Page Rev Chg Page Rev Chg 1 4 2 4 3 4 l

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Approval Authority: Approval Date: 3/,vy2_

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FORb TITLE $ LIST OF AFFECTED PAGES FORM NO. 1000.006 A RE ' -'

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@ Entergy ARKANSAS NUCLEAR ONE 1903.021 gpggggg SERIES TITLE: PROCEDUREWORK PLAN TITLE: PAGE: 1 of 3 EMERG l'I.AN ARKLA NATURAL GAS LINE RUPTURE REV: 4 CHANGE:

IMPLEMENT 1.0 PURPOSE ,

The purpose of this procedure is to describe the actions to be taken if the 10-inch ARKLA natural gas line that traverses the site ruptures or a leak is discovered.

2.0 SCOPE This procedure is limited to response to ARKLA natural gas line rupture i due to the nature of the follow-up actions. The precautions, symptoms "

and immediate actions may apply to situations involving other gaseoun fuela.

The ARKLA gas line crosses AP&L property approximately 200 feet southwest of the Unit II cooling tower and crosses the Unit 1 discharge canal. The line is 10 inches in size and carries 475 psig to 500 psig gas pressure.

3.0 REFERENCES

3.1 References Used in Procedure Peparation:

3.1.1 Arkansas Nuclear One Unit 1 and Unit 2 Final Safetv Analysis Reports.

3.1.2 Emergenc7 Plan.

s 3.2 References Used in Conjunction with this Procedure: i 3.2.1 1903.10, " Emergency Action Level Classification" 3.2.2 1903.11, " Emergency Responce/ Notifications" C

3.3 Related ANO Procedures:

None 3.4 Regulatory correspondence containing NRC commitments which are implemented in this procedere:

None 4.0 DEFINITIONS None 5.0 RESPONSIBILITY AND AUTil0RITY i

Aa described in Sections 7.2 ard 7.3.

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m W Entergy ARKANSAS NUCLEAR ONE l'303.021 SERIES TITLE: _ PROCEDUREWORK PLAN TITLE: PAGE; 2 of 3 Operat ons Pf';

O ARKLA NATURAL GAS LINE RUPTURE EMERG PLAN 4 IMPLEMENT lU ANGE:

6.0 LIMITS AND PRECAUTIONS 6.1 There should be no smoking or other opu.i flames in-the vicinity of the leak.

6.2 Leaking natural gas could be ignited by the corona on electric transmission lines or by automobile engine spark leaks.

7.0 INSTRUCTIONS 7.1 Symptoms 7.1.1 Small Gas Leaks  %

A. Dead Grass B. Ground cracked and gray in ellor C. Bubbles in wet places D. Bubbles toward the end of t ne discharge canal E. Gaseous Odors N./

7.1.2 Large Gas Leaks A. Audible sound ranging in magnitude from a hissing sound to a roar.

B. Hole in the ground with blowing dust and other debris.

7.2 IMMEDIATE ACTIONS 7.2.1 Personnel should immediately extinguish all smoking materials and exit the area by the most direct means.

7.2.2 Personnel should immediately notify either Control Room of the leak and retaain available to prevent unsuspecting persons from approaching the area.

7.3 FOLLOW-UP ACTIONS 7.3.1 Control room personnal should announce the following message on the public address system:

MESSAGE: " Attention all personnelt t.ttention all personnell An Arklo Natural Gas Line Ro >ture has occurred ir.

the ...(location)... due to ...(nature of rupture)...

O All personnel stay clear of the area."

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PROC,-' WORK PLAN NO.

a ARKANSAS NUCLEAR ONE

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3 of 3 1 EMERG PLAN ARKLA NATURAL GAS LINE RUPTURE 4 CHANGE:

IMPLEMENT ,_

7.3.2 The Control Room should notify the Arkansas Louisiana Gas Company as follrws:

A. Week Days: Pipeline Warehouse --- 968-1313 B. After liours: ARKLA Central System Dispatcher, Shreveport, LA. (318-429-2782 or 318-429-2700) 7.3.3 Shift operations personnel not involved with controlling the emergency should report to the Control Room.

7.3.4 The notified Shif t Operations Supervisor should designate personnel to cordon off the area, maintain surveillance and warn others that may approach the affected area.

7.3.5 The Shift Operations Supervisor shall declare a Notification of Unusual Event Emergency Class if a plant evacuation is required as a result of the release as required by ;oce-dure 1903.10, " Emergency Action Level Classification".

8.0 ATTACitMENTS AND FORMS None s

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