ML20235V193

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Forwards Objectives,Limitations & Extent of Play,Scenario Time Line & Scenario Summary for Plant Radiological Emergency Plan 1987 Annual Exercise,For Review
ML20235V193
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 07/31/1987
From: Cockfield D
PORTLAND GENERAL ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8710150032
Download: ML20235V193 (19)
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E ortlandGeneralElechicCervany David W. Cockfield Vice President, Nuclear July 31,'1987 Trojan Nuclear Plant Docket 50-344 License NPF-1 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington DC 20555

Dear Mr. Martin:

Trojan Radiological Emergency Plan Scope and the Objectives and Limitations of the 1987 Annual Exercise Attached for your review, please find two copies of the Objectives, Limitations and Extent of Play ( Attachment. A), Scenario Time Line (Attachment B), and Scenario Summary (Attachment C) for the Trojan Radiological Emergency Plan 1987 Annual Exercise. This information shall be kept from public disclosure until after the Annual Exercise to assure confidentiality of the scenario. The Trojan exercise is scheduled for October 14, 1987. This letter transmits the exercise Scope and the Objectives and Limitations 75 days prior to the Annual Exercise.

The states of Oregon and Washington; Columbia County, Oregon; and Cowlitz County, Washington have concurred with the enclosed Objectivos and Limitations.

If you have any questions or comments, please contact Portland General Electric Company.

Sincerely, Attachments CERTIFIED MAIL c Mr. David Kish, Director - w/ attachments State of Oregon Depart.mont of Energy Mr. John B. Martin - w/ attachments Regional Administrator, Region V U.S. Nuclear Regulatory Commission Mr. William H. Mayer - wo/ attachments Federal Emergency Management Agency 8710150032 870731 PDR F

ADOCK 05000344 PDR $

121 S W Satn on Street Ponand, Oregon 97204

O Trojan Nuclear Plant Document Control Desk Docket 50-344 July 31, 1987 License NPF-1 Attachment A Page 1 of 15 TR)JAN RADIOLOGICAL EMERGENCY PLAN 1987 ANNUAL EXERCISE OBJECTIVES. LIMITATIONS AND EXTENT OF PLAY I. OBJECTIVES A. CENERAL OBJECTIVES

1. Demonstrate the adequacy of the Radiological Emergency Plan and Radiological Responso Plan Implementing Procedures in terms of management control of an emergency and usefulness of the procedures.
2. Demonstrate the adequacy of communications among emergency facilities, off-site agencies and field teams.
3. Demonstrate the ability of key personnel to make timely and effective decisions during a radiological emergency.

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4. Demonstrate the ability of emergency facility managers to l effectively utilize the resources of their facility to l accomplish the goals of the Emergency Plan. This includes j inter-facility communication, comprehensive verbal brief-ings of staff and requests for assistance, as required.

B. SPECIFIC ON-SITE OBJECTIVES

1. CONTROL ROOM Demonstrate that the Control Room staff can:
a. Assess Plant conditions and classify the UNUSUAL EVENT and make the appropriate protective action recommendation.
b. Make initial notifications for the UNUSUAL EVENT of appropriate individuals and organizations.
c. Assess Plant conditions and classify the ALERT and make the appropriate protective action recommendation.
d. Make initial notifications for the ALERT of appropriate individuals and organizations.
e. Perform a dose calculation using FR3TDOSE.
f. Take corrective actions to control the situation and mitigate the consequences.

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. I Trojan Nuclear Plant. Document Control Desk Docket 50-344' July 31, 1987 Licenso NPF-1 Attachment A Page 2 of 15

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g. Establish communications with the Technical Support Center (TSC) and Operational Support Center (OSC) during the process of activation of those facilities.
h. Turn over communication responsibility with the Nuclear Regulatory Commission (NRC) to the TSC when it is activated.
i. Coordinate operations-related tasks through the OSC I after the OSC has become operational.

J. Maintain a formal log of events for the duration of the simulated emergency situation.

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k. Demonstrate that the Shift Supervisor acting as Emer-gency Coordinator maintains overall command and control of the emergency situation until relieved of this i responsibility by the Duty Plant General Manager in the TSC or the Emergency Response Manager in the Emergency Operations Facility (EOF).
2. TSC .

1 Demonstrate that the Duty Plant Ceneral Manager:

a. Obtains detailed Plant and emergency status briefing from the Shift Supervisor prior to declaring the TSC operational.
b. Assumes command and control of the emergency situution until relieved of this responsibility by the Emergency Respot.se Manager,
c. Approves the classification of a SITE AREA EMERCENCY if the Emergency Response Manager has not assun.ed Emergency Coordinator duties at the EOF.
d. Approves Protective Action Recommendations (PAR) developed by the TSC staff at a SITE AREA EMERGENCY (if the Emergency Responso Manager has not assumed the role of Emergency Coordinator) utilizing Plant conditions.

Demonstrate that the TSC staff can:

e. Activate the TSC within 30 minutes of the ALERT classification.

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p Trojan Nuclear Plant Document Control Desk Docket 50-344 July 31, 1987 j License NPF-1 Attachment A Page 3 of 15

f. Assume responsibility for NRC communication from the )

Control Room on activation of the TSC. )

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g. Support emergency functions of the Control Room, l
h. Perform analyses and monitor Plant conditions to develop plans for corrective action.
1. Request that the Company Support Center (CSC) perform a l specific engineering analysis. ]
j. Identify tasks to be performed by the OSC staff.

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k. Provide a personnel roster to Security for use in  !

accountability determination.

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1. Perform a near-term core damage assessment.
m. Maintain a formal log of events for the duration of the simulated emergency situation.
n. Maintain current display of Plant status,
o. Maintain current display of emergency activities.
3. OSC  ;

Demonstrate that the OSC staff can:

a. Activate the OSC within 30 minutes of the declaration of an ALERT.
b. Communicate and coordinate task assignments and OSC activities with the Control Room and TSC.
c. Assemble, brief, dispatch, communicate with, and track OSC teams to the completion of assigned tasks.
d. Track individual OSC member doses and control OSC personnel exposure.
e. Dispatch a self-contained breathing apparatus (SCBA) compressor team which can be used to refill the SCBA j

bottles, i

I' f. Maintain contamination control in the OSC, including f personnel, tools, and SCBAs. Demonstrate that OSC

( radiological habitability can be monitored.

Trojan Nuclear Plant Document Control Desk Docket ~50-344 July 31, 1987 License NPF-1 Attachment A Page 4 of 15

.g.. Dispatch and receive teams utilizing SCBAs.

h. Demonstrate that the Radiation Protection Supervisor can determine if KI should be administered to on-site emergency  !

workers. i

~i. ' Demonstrate that the OSC Supervisor can keep personnel in i

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the OSC informed of current Plant conditions.

j. Demonstrate that OSC dispatched teams can perform their duties in work conditions which require respiratory protection.

C. SPECIFIC OFF-SITE / JOINT OBJECTIVES

1. EMERGENCY OPERATIONS FACILITY Demonstrate that the EOF staff can:
a. Activate the facility within 30 minutes of the declaration of'an ALERT.

b' . Class'1fy the CENERAL EMERCENCY if,the Emergency Responso Manager has assumed the role of Emergency Coordinator at the EOF.

c. Obtain data from the TSC as required to supplement Safety Parameter Display System output,
d. Transmit the following information with updates as required to the CSC, Oregon Emergency Operations Center (EOC), Washington County EOC, Cowlitz County EOC, Columbia County EOC and Cregon Health, o Emergency classification o Plant data summaries o Dose assessment results o PARS
e. Provide access control at the EOF.
f. Maintain a formal log of events for the duration of the simulated emergency situation.

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Trojan Nuclear Plant. Document Control Desk L

Docket 50-344 July 31, 1987

' License NPF-1 Attachment A L

Page 5 of 15

g. Maintain' current displays of the following information ,

.for the duration of the emergency.

o Plant Status o Emergency Status o Off-site PARS a o EOC Decisionmaker Board (

Demonstrate that the Emergency Response Manager:

h. Obtains a detailed Plant and emergency status briefing prior to assuming the position of Emergency Coordinator.
i. Can approve a PAR (if the Emergency Responso Manager  ;

has become the Emergency Coordinator).

j. ' Demonstrate that the Health Physics Supervisor issues thermoluminescent dosimeters to EOF personnel upon declaration of an ALERT.
k. Demonstrate that the Public Information Representative provides information on a continuing basis to the Joint Information Center.
2. EOF DOSE' ASSESSMENT' AREA Demonstrate that the staff can:
a. Make a recommendation on administration of KI to on-site and off-site emergency workers.

l' b. Project dosage to the public via plume exposure based on calculations and field measurement.

c. Uso dose projection results to develop PARS.
d. Ccordinate State and Portland General Electric (PGE) field monitoring.

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3. RADIOLOGICAL FIELD MONITORING Demonstrate that
a. The PGE field team can begin its monitoring activities within 45 minutes following declaration of an ALERT.
b. PGE and Oregon field teams can communicate with the EOF  ;

I using two-way radios and provide required information to the EOF.

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m Trojan Nuclear Plant Document Control Desk Docket 50-344 July 31, 1987 License NPF-1 Attachment A Page 6 of 15

c. PGE and Oregon field teams can perform field monitoring including gamma and beta plus gamma and airborne iodine and particulate monitoring,
d. The teams can perform continuous field monitoring and point surveys.
e. The teams are aware of and use the precautionary statements in the radiological monitoring procedure. ,
4. CSC Demonstrate that the CSC staff cant
a. Provide assistance to the Plant emergency response organization including performance of a specific analysis to be requested by the TSC.
b. Document and track requests for assistance from the TSC, EOF and other emergency centers,
c. Notify specified agencies and off-site groups. I
d. Request and coordinate assistance as necessary from off-site organizations,
e. Periodically update the EOF on the status of off-site organizations.
f. Update the EOF concerning the status of request for assistance from the Federal Aviation Administration, Burlington Northern, etc.
g. Obtain a weather forecast from the National Weather Service for 12 and 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
5. Demonstrate that PGE can prepare the Emergency Worker center for use by Oregon Health.
6. Demonstrate that the PCE Public Policy Staff can respond effectively to news media inquiries during an incident at Trojan prior to and after the activation of the Joint Information Center. This includent
a. Notification of Public Policy Staff involved with emergency public information responsc.

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Document Control Desk Docket 50-344 July-31, 1987 i License NpF-1 Attachment A Page 7 of 15

b. Gathering and compiling information for initial news 3;

. releases, then obtaining required approval from PGE management for the release, then coordinating release through other participating' agencies.

c. Providing release of approved'information internally to employees through INFOLINE and Instant Infos.
d. Responding to inquiries on the event from the media, -

customers, employees, stockholders, and industry 'l representatives,

e. Respond to rumors which are communicated to the rumor control staff.
f. Monitoring local media for inaccurate or misleading information on the event.

II. LIMITATIONS AND EXTENT OF PLAY A. The. Annual' Exercise shall be. conducted in real time with the following exceptions:

1. The Oregon field team (s) will be repositioned in the field
and will start operation at an appropriate time to simulate realistic travel time from their normal start location.

(Approximately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after ALERT Notification)

2. ' Oregon and Washington personnel that report to the EOF will be repositioned outside the EOF and will begin their par-ticipation at an appropriate time to simulate realistic travel time from their normal start location. (Approxi-mately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after ALERT Notification)
3. Counting time for samples may be reduced for exercise time compression purposes.

B. Annual Exercise participants will be as follows:

1. PGE.
a. Control Room.
b. OSC.
c. TSC.
d. EOF.

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Trojan Nuclear Plant' Document Control '.esk .q '

Docket 50-344- July 31, 1987 License NPF-1 Attachment .i q Page 8 of 15 i e.' CSC.

f. Emergency Worker Center.

.2. State'of' Oregon.i

a. EOC.
b. EOF dose ~ assessment area staff, c '. EOF liaison.
d. Cround field monitoring team (s).
e. Emergency Worker Center.
3. State of Washington.

a.

EOC.

b.' EOF dose assessment area ctaff,

c. EOF liaison.
4. Columbia County.

EOC. 1

5. Cowlitz county.

EOC.

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6. U.S. Coast Cuard. .j
a. Notification.
b. Level of participation to be determined. 4

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7. There will be no participation by any other off-site -

agencies.

C. The release of radioactive material will be of sufficient ,

magnitudo to: (1) cause Protective Action Guides to be

'. exceeded out to at least 5 miles, and (2) cause iodine concentration to be greater than 1 x 10-7 pCi/cc off-site.

D. Only ono PGE off-site monitoring team will be used.

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Trojan Nuclear. Plunt-' Document Control Desk Docket 50-344 July 31, 1987

. License'NPF-1 Attachment A Page 9 of 15 E. No on-site or off-site evacuations will'be conducted.

F. The scenario will not include injured or contaminated workers.

G. .A PGE. exercise controller will be assigned to designate the beginning and termination of the drill to ensure that the drill proceeds in the manner that achieves the above objectives.

H. No Post-Accident Sampling System sample will be drawn. This will be performed as a separate drill.

I. Use of the siren portion of the Trojan Site Warning System will be simulated. The public address portion of the system will be used.

J. On-site accountability will not be demonstrated.

F K. -On-site actions will be demonstrated in as realistic a manner as possible. All. drill participants will don anti-contamination clothing, use respiratory equipment, set up radiation barriers

-and follow procedures as required by the scenario.

L. No Plant systems will be manipulated.

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? Dock 3t 50-344 July 31, 1987 License NPF-1 Attachment A Page 10 of 15 i TROJAN RADIOLOGICAL EMERGENCY PLAN L 1987AnnualExerciseObjectivesandLimitations Emergency Operations Center

-Basic Objective Colunbia Cowlitz 1 Nunber .. Basic Objective Limitation County County . Oregon Washinaton Activation and Staffina If Demonstrate ability to mobilize. The Washington EOC and x x x x staff and activate facilities Cowlitz County EOC will be pronptly. set up IN ADVANCE, but notification and staffing will be demonstrated.

2 Demonstrate ability to fully None. No FEMA .x x staff facilities and maintain Agree to staffing around the clock. defer Manacoment 3- Danonstrate ability to make deci- The only ingestion deci-. x x x x sions and to coordinate emergency sions to be made will be activities. the automatic decisions.

20 Demonstrate ability to None. x x No No continuously monitor and control emergency worker exposure.

Facility Adequacy 4 Demonstrate adequacy of facilities None. x x x x and displays to support emergency operations.

I Communications 5 Demonstrate ability to communicate None. x x x x with all appropriate locations, organizations, and field personnel.

Protective Action Recommendation 10 Demonstrate ability to project Thisobjectivewillbe No No No x l dosage to the public via plume limited to DSHS performance exposure, based on Plant and of a review of the EOF field data, and to detennine dose assessment and PAR app-opriate protective measures, development.

bated t.c P.AG's available shelter, evacuation time estimates, and all other appropriate factors.

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4 Troj;nNuclearPlant Document Control Desk Dock 2t 50-344 . July 31, 1987 License NPF-1 Attachment A Page 11 of 15 Li . TROJAN RADIOLOGICAL EMERGENCY PLAN-1987AnnualExerciseObjectivesandLimitations Emergency Ooerations Center

' Basic Objective Colunbla Cowlitz Nunber Basic Objective Limitation County County Oregon Washington 21: Demonstrate the ability to make The Emergency Plan for x x x x the decision, based on pre- Cowlitz County, Colunbla detennined criteria, whether to County, Oregon, and issue KI to emergency workers Washington does not pro-and/or the general population. Vide for the distribution of KI to the general public.  ;

However, KI may be provided to menbers of the general public considered to be emergency workers /special populations.

Pubile Alert and Notification J

13 Demonstrate ability to alert the TheTrojanSirenWarning x x No No l public within the 10-mile EP2, System (TSWS) will not be  !

and disseminate an initial activated. However, Instructional message, within transmission of a test .l' 15 minutes. signal will be transmitted to demonstrate coordination and operation of the TSW5.

1 14 Demonstrate ability to formulate Same as limitation in x x x x and distribute appropriate Objective 13. Live instructions to the public, in a broadcasts will not be timely fashion. demonstrated. Pubile  !

instructions will be developed and provided to the radio release point.

Protective Action inclementation 15 Demonstrate the organizational No actual evacuation will x x No No ability and resources necessary be demonstrated, to manage an orderly evacuation of all or part of the plume EPZ.

16 Demonstrate the organizational None. x x No No ability and resources necessary to deal with impediments to evacuation, such as inclement weather or traffic obstructions, j

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TrojanNuclearPlant Doctsnent Control Des!r Docket 50-344 July 31, 1987 License NPF-1 Attachment A Page 12 of 15 TROJAN RADIOLOGICAL EMERGENCY PLAN ..

1987AnnualExerciseObjectivesandLimitations Emergency Operations Center Basic Objective Colunbia Cowlitz Nunber Basic Ob_lective Limitation County County Oregon Washington 17 Demonstrate the organizational None. x x No No ability and resources necessary

  • to control access to an evacuated area.

18 Demonstrate the organizational Demonstration of this x x No No ability and resources necessary objectivewillnotinclude to effect an orderly evacuation patients in hospitals and p of mobility-inpaired individuals care facilities. t within the pItsne EPZ.

19 Demonstrate the organizational None. x No No No ~ ~ ~ ~ ~

ability and resources necessary to effect an orderly evacuation of schools with the pitsne EPZ.

22 Demonstrate the ability to supply None. x x No No and adninister KI, once the d decision has been made to do so.

Public Infonnation 24 Demonstrate ability to brief the None. x x x x media in a clear, accurate, and timely manner.

25 Demonstrate ability to provide None. x x x x advance coordination of infonna-tion released.

26 Demonstrate ability to establish A control cell will x x x x and operate rumor control in a simulate four calls per coordinated fashion. hour per EOC.

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Trojan Nuclear Plint Document Control Desk Docket 50-344 July 31, 1987 License NPF-1 Attachment A Page 13 of 15 TROJAN RADIOLOGICAL EMERGENCY PLAN 1987AnnualExerciseObjectivesandLimitations Field Inolomentation .

l Basic Objective Columbia Cowlitz {

Nmber _ Basic Objective limitation County County Oregon Washington I

Coninunications 5 Demonstrate ability to centnuni- None. x No No No cate with all appropriate locations, organizations, and field personnel. .

1 Management J 15 Demonstrate the organizational No actual evacuation x No No No ability and resources necessary will be demonstrated. l to manage an orderly evacuation j of all or part of the plume EPZ. l 16 Demonstrate the organizational All necessary actions will x x No No I ability and resources necessary be taken to deal with the to deal with impediments to impediment to evacuation evacuation, such as inclement but no travel into the EPZ weather or traffic obstructions, will be demonstrated.

17 Demonstrate the organizational None. x No No No ability and resources necessary j to control access to an evacuated area.

I 18 Demonstrate the organizational All necessary actions will x x No No {

ability and resources necessary be taken to deal with the to effect an orderly evacuation evacuation, but no travel  ;

of mobility-inpaired individuals into the EPZ will be I within the p1tsne EPZ. demonstrated. )

l 19 Demonstrate the organizational All necessary actions will x No No No j ability and resources necessary be taken to deal with the j x to effect an orderly evacuation evacuation, but no students I j of schools with the plume EPZ. will be moved nor will buses j be driven to the schools or l relocation schools.

t 20 Demonstrate ability to None. x No No No continuously monitor and control emergency worker exposure.

22 Demonstrate the ability to supply None. x No No No and adninister KI, once the decision has been nude to do so.

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TrojanNuclearPlcnt Doctanent Control Desk ll DockCt 50-344 July 31, 1987

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License NPF I Attachment A.

Page 14 of 15 TROJAN RADIOLOGICAL EMERGENCY PLAN 1987'AnnualExerciseObjectivesandLimitations Radioloalcal Field Monitoring Basic Objective .

Columbia Cowlitz Number Basic Obiective limitation M County County Orejpn_ Washington Activation and Staffina 1 Demonstrate ability to mobilize None X No No X No

. staff and activate facilities proniptly.

l 6 Demonstrate ability to mobilize Oregon Health will provide X No No X No and deploy field monitoring teams two teams.

in a timely manner. Washington DSHS will not provide teams.

Equipment 7 Demonstrate appropriate equipment None X No No X No and procedures for determining anblent radiation levels.

l 8 Demonstrate appropriate equipment None X No No X No l and procedures for measurement of airborne radiciodine concentrations as low as 10-7 pCl/cc in the j l presence of noble gases.

I Connunications 5 Demonstrate ability to consnunicato None X No No X No ]

with all appropriate locations, ortenizations, and field personnel.

Exposure control l b 20 Demonstrate ability to contin. None X No No X No uously monitor and control emergency worker exposure.

l l 22 Demonstrate the ability to supply None X No No X No f; and adninister KI once the decision has been made to do so. ]

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Cmununicathms 5 Demonstrate ability to communicate None No No No X No with all appropriate locations, organizations, and field personnel.

Operations 29 Demonstrate adequate equipment Colunbla Co. will provide No No No X No and procedures for decontamination approxifnately 20 persons of emergency workers, equipment, to be processed as and vehicles, emergency workers.

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Trojan Nucicar Plant Document Control Desk Docket 50-344 July 31, 1987 License NPF-1 Attachment C Page 1 of 2 SCENARIO

SUMMARY

The Plant has been operating for 210 days at 100 percent power and is near end-of-cycle. Two days ago, the failed fuel monitor [ Plant Radia-tion Monitor (PRM) 13] increased in level, which resulted in a request for a sample of reactor coolant to be analyzed. The sample indicated 0.06 percent fuel failure.

The Plant was allowed to reduce power prior to end-of-cycle to minimize further fuel damage. The Plant is currently at 10 percent power and reducing power at a rate of 5 percent per hour. Letdown flow rate has been increased to 120 gallons por minute (spm) with the cation bed on service to maximize cleanup. The volume control tank (VCT) is desassing to the waste gas surge tank (WGST). The unidentified leak rate is 0.25 gpm. Auxiliary Building vent fan (VC-303C) and the waste gas com-pressor are out-of-service for maintenance. A second reactor coolant sample is being analyzed after the PRM-13 again indicated an increase.

The reactor coolant sample analysis indicates that fuel damage has increased 0.2 percent per hour since the last sample. The shift super-visor declares an Unusual Event based on greater than 0.1 percent increase in fuel damage over one-half hour intervals.

At approximately T=30 minutes, a section of the Auxiliary Building instrument air header in mechanically damaged, causing filter isolation dampers for Fans VC-303A and B to fail shut, tripping the two fans. The Auxiliary Building now has only one-third of the normal ventilation.

The initial conditions have the "A" Waste Gas Compressor (C-301A) out-of-service. The Radwaste Control Panel C-151 compressor select switch is in the "A" position. The precsure switch for the "B" compressor does not operate, and the compressor does not start. The WGST scoure is at 9 pounds per square inch (psi).

At approximately T=45 minutes, a pressure excursion occurs in the WGST.

Relief Valve PSV-4302 opens with the excursion and remains approximately one-fourth open, resulting in an uncontrolled release out of the Auxiliary Building vent. The excursion also cracks the downstream weld on the isolation valve to LIS-4324, giving a release to the Auxiliary Building.

At approximately T=50 minutes, the Auxiliary Building vent radiation monitor (PRM-2C) alarms, reading 50,000 counts per minute (cpm).

At approximately T=65 minutes, an Alert is declared based on a radio-active release exceeding 10 times the Technical Specifications limit of 2 E -4 pCi/cc tots 1 activity (47,000 cpm on PRM-2C) for greater than 15 minutes.

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Trojan Nuclear Plant Document Control Desk f Docket 50-344 July 31, 1987 l'

! License NPF-1 Attachment C Page 2 of 2  :

At approximately T=120 minutes, the release is terminated as the WGST becomes depressurized. The Relief Valve PSV-4302 reseats, and the Auxiliary Building vent radiation monitor return to normal level.

At approximately T=125 minutes, the "B" reactor coolant pump seal leakoff flow increases from 3.4 gpm to off-scale high. The supply flow increases to 15 spm. The standpipe high-level alarm is in. The Reactor Coolant Drain Tank (RCDT) level increases rapidly, and the RCDT discharge line Process Radiation Monitor (PRM-15) increases and isolates the RCDT pump.

At approximately T=135 minutes, a Site Area Emergency is declared based on a Loss-of-Coolant Accident (LOCA) exceeding the capacity of the charging system due to the "B" Reactor Coolant Pump shaft leakage being 350 gpm.

At approximately T=180 minutes, the Safety Injection (SI) signal did not reposition the Component Cooling-Water (CCW) valves (MO-3293 or MO-3347) to provido CCW to the Containment air coolers. The "A" Train has no CCW flow and the bypass flow around MO-3347 is not sufficient for the heat load, and all containment air temperatures are trending up.

At approximately T=225, the "C" Steam Generator secondary manway blows  !

out, depressurizing to Containment. CCW to the Containment air coolers 5 will not be allowed. Containment pressure continues to increase. Manual initiation of the Containment Spray System will not be allowed. A General Emergency may be declared based on a LOCA greater than charging pump capacity with known fuel damage and Containment pressure increasing ]

with a loss of Containment cooling.  ;

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-At approximately T=235 minutes, the "C" Reactor Coolant Pump (RCP) is seized by a locked impeller. The motor current is off-scale high. The second overcurrent sensor does not cause the RCP breaker to trip, resul-ting in rapid overheating at the Containment penetration, causing the Containment penetration to fail. A radioactive release to the electrical penetration area and to the atmosphere begins. A Ceneral Emergency is declared (if a Cencral Emergency was not declared at T=225).

At approximately T=345, efforts to open the CCW bypass valves are suc-cessful; Containment pressure in trending down and the release is reduced ,

as the Containment pressure is red.uced. l l

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