ML20057C559

From kanterella
Jump to navigation Jump to search
Emergency Preparedness Exercise Insp Repts 50-282/93-16 & 50-306/93-16 on 930830-0902.Major Areas Inspected:Plant Annual Emergency Preparedness Exercise
ML20057C559
Person / Time
Site: Prairie Island  
Issue date: 09/20/1993
From: Cox C, Mccormickbarge, Reidinger T, Simons H
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20057C549 List:
References
50-282-93-16, 50-306-93-16, NUDOCS 9309290116
Download: ML20057C559 (44)


See also: IR 05000282/1993016

Text

_ _ . . _

_ _ - . _

_.

_ _ _ .

_.

__ _

.,

.-

i

~

!

.

!

U.S. NUCLEAR REGULATORY COMMISSION

,

REGION III

,

!

'

Reports No. 50-282/93016(DRSS); 50-306/93016(DRSS)

Dockets No. 50-282; 50-306

License Nos. DPR-42; DPR-60

6

Licensee: Northern States Power Company

414 Nicollet Mall

,

Minneapolis, MN 55401

!

Facility Name:

Prairie Island Nuclear Generating Station

Inspection At:

Prairie Island Site, Red Wing, Minnesota

Inspection Conducted: August 30-September 2, 1993

l

Inspectors:

O.v%o

/ 97

C. Cox

Dat'd ' " '

j

t

'

A f.

  1. A

T. fieidinge P

Date' '/

'

0 &hn.

W//kT

l

H. 'Simons '

Dit'e"

!

!

Accompanied By:

R. Bywater

}

R. Paul

l

I

Approved By: h-[ -

'V)

Sun

O 43

'

ud. W. McCormick-Barger,# hief

Date

i

C

Emergency Preparedness and

a

Non-Power Reactor Section

!

Inspection Summary

'

Inspection on August 30-September 2. 1993 (Report Nos. 50-282/93016(DRSS): 50-

306/93016(DRSS))

Areas Inspected:

Routine, announced inspection of the Prairie Island

Generating Plant's annual emergency preparedness exercise, involving:

review

.

of the exercise scenario (IP 82302); observations by five NRC representatives

of key functions and locations during the exercise (IP 82301); and review of

licensee actions on previously identified items (IP 82301).

l

' Resul ts: No violations or deviations were identified. The licensee's overall

i

exercise performance was very good; however, four inspection follow-up items

i

were identified regarding guidance for declaration of emergency events, lack

9309290116 930920

PDR

ADOCK 05000282

i

G

PDR

.

.

,

,

,

-

.

~

. - . .

_

-

..

'

.

!

.

,

of contamination control, no confirmatory air samples taken, and a lack of

radiological information for the Operational Support Center. Control Room

'

Simulator crew, Technical Support Center, Operational Support Center, and the

Emergency Operations Facility staff performance, scenario challenges, and a

,

t

critical self-evaluation were strong points for this exercise,

i

A significant concern was identified in the inspection followup item regarding

the guidance in Emergency Plan Implementing Procedure (EPIP) F3-2

" Classification of Emergencies" for declaration of emergency events.

EPIP F3-

,

2 states that the 15 minute notification clock does not start until the

notification form has been approved and signed by the Emergency Manager. The

e

!

NRC position is that the 15 minute notification clock starts as soon as the

Emergency Manager recognizes or should have recognized the conditions that

J

warrant declaration of an emergency.

!

!

,

9

i

!

i

i

k

T

r

p

$

e

2

I

.

,.

..

-

- -.

..

-

.

...

.

-

W

j

.

-

DETAILS

1.

NRC Observers and Areas Observed

'

)

l

C. Cox, Control Room Simulator (CRS) and Operational Support Center

(OSC)

R. Bywater, CRS

T. Reidinger,_ Technical Support Center (TSC) _

i

R. Paul, OSC and inplant teams

,

H. Simons, Emergency Operations facility (E0F)

l

2.

Licensee Representatives

-

E. Watzl, General Manager, Prairie Island

M. Wadley, Plant Manager

!

F. Fey, Manager, Nuclear Radiation Services

!

J. Sorensen, General Superintendent, Plant Operations

!

D. Schuelke, General Superintendent, Radiation Protection

l

M. Reddemann, General Superintendent, Electrical and Instrument Systems

l

M. Ladd, Superintendent,-Technical Training

D. Reynolds, Superintendent, Operations Training

.

M. Johnson, Superintendent, Simulator Engineering

M. Agen, Engineer, Emergency Plan

J. Delkers, Nuclear Quality Department

The above personnel and 7 additional licensee personnel attended the

exit meeting on September 2, 1993.

The inspectors also contacted other licensee personnel during the course

of the inspection.

3.

Licensee Action on Previously Identified Items (IP 82301)

!

a.

(Closed) Inspection Followuo Item Nos. 50-282/92016-01 and

l

306/92016-01:

Inadequacies in the conduct of the accountability

drill during the 1992 exercise resulted in the drill taking over

j

35 minutes to complete accountability.

An accountability drill was held as part_of the August 31, 1993

Exercise. Accountability was completed within 25 minutes.

Exceptions lists were kept to a minimum with controllers and

,

evaluators using keycard readers for accountability when possible.

!

,

'

This item is closed.

,

'

4.

General (IP 82301)

'

An announced daytime exercise of the Prairie Island Nuclear Power

Plant's emergency plan was conducted at the Prairie Island Plant site on

i

August 31, 1993. The exercise tested the capabilities of the licensee's

i

emergancy organization to respond to an accident scenario involving the

l

simulated release of radioactive effluent. The attachments to this

i

3

l

!

l

-!

..

.

.

_

-.

>

. - -

.

- - .

-.

..

.

..

- . - ~ - - -

-

.

_ _ - - - - - -

..

..

.

inspection report summarize the licensee's scope of participation and

the exercise scenario.

5.

General Observations (IP 82301)

The licensee's response was coordinated, orderly, and timely.

If the

scenario events had been real, the actions taken by the licensee would

have been sufficient to mitigate the accident and permit State and local

authorities to take appropriate actions to protect the public's health

and safety.

6.

Soecific Observations (IP 82301)

a.

Control Room Simulator (CRS)

The CRS performance and operator use of procedures were excellent.

Annunciator Response Guides were used when required and the Shift

l

Supervisor (SS) diligently followed the Emergency Operating

!

Procedures (E0Ps). Crew briefings were excellent.

The Shift

1

Manager (SM) provided numerous updates and solicited inputs from

all the operators.

1

l

Communications in the CRS and between the CRS and the other

l

facilities were good.

Some problems were noted in response to E0P

actions, with the Technical Support Center (TSC) questioning the

path taken by the CRS. However, those problems were resolved.

Classification of the Unusual Event (UE) and the Alert were

l

proper.

Timeliness of the classifications was acceptable.

'

However, the declaration of the UE was delayed while further

verification of the earthquake was sought after associated

problems from the earthquake were reported. The Alert was also

delayed due to delays in obtaining accelerometer information from

i

'

the Instrumentation and Control (I&C) technicians. Another minor

delay in declaration was noted due to guidance provided in Section

5.3 of Emergency Plan Implementing Procedure (EPIP) F3-2

i

" Classification of Emergencies", which directed declaration of an

l

emergency classification after notification forms were filled out.

j

The logic behind the guidance was to provide a concise time for

J

when to declare an event. However, the NRC position is that event

declaration must be made when the conditions warranting a

declaration are recognized by the Emergency Manager.

During the

exercise, the SM in the CRS and the Emergency Manager in the

,

Emergency Operations Facility (E0F) delayed complete assessments

'

of the conditions for declarations during the time it took for the

notification forms to be completed. While the observed delays

were very minor and did not detract from the timeliness of the

notifications, in a real event any delay in fully assessing

1

conditions for emergency classification would be unacceptable.

'

The licensee acknowledged the NRC position on classification and

agreed to revise EPIP F3-2 to reflect the NRC position. NRC

I

review of the licensee's proposed revision to EPIP F3-2 will be

4

.

-.

_

.-.

u

!

-

.

k

tracked as an inspection followup item (Inspection Followup Item

.

Nos. 50-282/93016-01; 50-306/93016-01).

,

No violations or deviations were identified.

b.

Technical Support Center (TSC)

i

The performance in the TSC was very good. Activation of.the TSC

was timely. The transfer of command and control from the SM, in

the CRS, to the Emergency Director (ED), in the TSC, was good.

l

Briefings in the TSC were very frequent and informative. Good

'

command and control was demonstrated with priorities being set and

'

status of tasks being tracked. Status boards were kept up-to-date

and the staff in the TSC closely monitored the parameters

available and noted changes.

Especially noteworthy was the

,

decision to separately track the status of the shutdown of Unit 2

'

during the emergency on Unit 1.

Communications within the TSC were adequate. However, a problem

from past exercises with noise in the TSC was again noted.

Side

conversations were a major contributor to the noise during plant

briefings. A problem was also noted in the announcement

concerning the EOF assumption of command and control.

The ED

announced that the "E0F was up and running".

It was not clear,

from that announcement in the TSC, that the EOF had taken command

.

and control.

,

The engineering and operation support personnel actively pursued

the problems presented by the degraded plant conditions.

For

example, a complete walkdown of both units was planned during the

-

emergency to fully assess the potential damage from the

earthquake.

9

The radiological assessment group did a good job of monitoring

i

plant conditions in anticipation of the unmonitored release.

Meteorological conditions were properly monitored and posted on

the status board. However, the radiological assessment group

relied on previous experience with fuel rod leakers and a past

release to the Auxiliary Building to determine the airborne hazard

rather than taking actual survey data. Only one air sample was

taken in the Turbine Building during the emergency and the iodine

results from the survey were discounted by the radiological

assessment group based on the previous experience. At least one

other air sample should have been taken to verify the first sample

rather than rely on past experience to reject the air sample

i

results.

NRC followup of the licensee's corrective actions

'

concerning the rejection of an actual field reading without a

followup reading will be tracked as an inspection followup item

(Inspection Followup Item Nos. 50-282/93016-02; 50-306/93016-02).

Habitability was properly monitored in the TSC.

However, the step

i

5

,

e -

,

-

-

.

-

_

- _ - . -

..

_ _ _ . . . -

_ _ _

,

)

l

a

,

.

off pads were not promptly set up after the activation of the TSC

)

when it was apparent a steam generator tube rupture was in

j

progress. Also it was noted that contamination control practices

-

at the step off pad demonstrated poor frisker use and improper use

of the step off pad. Contaminatior. control at the medical scene

was not demonstrated because the controller ended the medical

drill too early to allow the radiation protection technicians

(RPTs) to properly recover from the contamination problems

associated with the medical drill. NRC review of the licensee's

i

corrective actions associated with the contamination control

problem at the TSC and the medical drill will be tracked as an

inspection followup item (Inspection Followup Item Nos. 50-

282/93016-03; 50-306/93016-03).

Recovery discussions in the TSC were very thorough. A complete

review of the events was conducted and specific short term and

long term recovery actions were identified.

Included in the

discussions were the quarantining of damaged and failed equipment

and the need to evaluate the root causes for the numerous

equipment failures.

No violations or deviations were identified.

,

c.

Operations SuoDort Center (OSC) and Inolant Teams

Overall, the OSC performed very well, functioning in a effective

manner. The activation of the facility was timely and efficient.

Habitability was quickly established.

The dispatch and tracking of teams were very good, with over 25

teams being dispatched during the course of the exercise.

Team

briefings were comprehensive. Status boards were used effectively

to track available personnel, the teams that were dispatched, and

task priorities. The OSC Coordinator and his assistants

maintained good communications with the dispatched teams.

Briefings in the OSC were thorough and the OSC Coordinator ensured

that the briefings were relayed to the OSC overflow area where

personnel awaiting team assignments were staged.

Contamination control within the OSC was good. When the release

started and teams returning to the OSC were contaminated, the OSC

staff improvised and established a larger contamination control

area.

Contaminated teams were kept in the larger area until it

was decided that the teams could be re-dispatched since the

contamination levels were low.

No violations or deviations were identified.

d.

Emeroency Operations Facility (EOF)

Activation of the Emergency Operations Facility was very good.

The E0F was fully staffed and ready to assume command and control

6

.

_ _ _

__.

_ .

_

_

__

- _

.

.

within 50 minutes of the Alert. The turnover brief from the ED to

the Emergency Manager (EM) was very good.

Update briefings in the EOF were excellent.

The EM would ask each

functional area manager to provide the EOF with an update and

every manager used their update forms as checklists to ensure the

briefings were thorough.

The EM properly classified the Site Area Emergency (SAE) and the

General Emergency (GE). Offsite notifications were timely. The

!

small release did not require any general protective action

!

recommendation but one special group protective action

recommendation was made for the nearby casino.

'

,

Overall problem solving activities were very good.

The Technical

Support Staff (TSS) did an excellent job monitoring plant

parameters. The TSS quickly recognized the need to classify the

SAE because the steam leak was not isolable. The Radiation

!

Protection Support (RPS) staff effectively directed field

l

monitoring teams and was able to develop dose assessments for the

)'

unmonitored release path. However, the first dose projection was

not completed until one hour after the release began. Numerous

equipment problems with the dose projection model contributed to

!

the time delay and the staff appeared reluctant to perform a

!

manual calculation.

Recovery activities were very good. The EM directed each support

!

group to develop action plans. Or ' the ED arrived from the TSC,

all actions were then reviewed by the EM and his managers to

!

formulate a master plan.

No violations or deviations were identified.

,

e.

Medical Drill

l

.

The exercise scenario contained a medical drill involving two

i

contaminated injured workers as a result of the Turbine Auxiliary

-

Feedwater (TAFW) Pump overspeed.

The medical response was prompt

and appropriate.

The RPTs arrived and tried to establish

contamination control points but were unable to do so because of

the nature of the release. The RPTs' plan of action was to allow

the medical team to treat the victims and prepare them for

i

transportation to a hospital. Once the victims were loaded on the

!

ambulance, contamination control would then be established for the

!

responders and they would be surveyed and decontaminated as

.

needed.

However, the controller ended the drill before

l

contamination control could be established. NRC review of the

licensee's corrective actions associated with the failure to

'

demonstrate contamination control will be tracked as the

inspection followup item described in Section 6.b.

!

7.

Exercise Ob.iectives and Scenario Review (IP 82302)

,

7

i

t

9

-

-

l

.

The exercise scope and objectives and the exercise scenacio were

submitted to the NRC well within the required timeframes.

No problems

were identified during the review of the scenario or objectives.

l

The scenario was-very challenging with numerous equipment failures, real

time accountability and post-accident sampling. The unmonitored release

path which caused contamination problems within the Turbine Building and

dose projection problems was especially challenging.

No violations or deviations were identified.

8.

Exercise Control and Exercise Simulation (IP 82301)

Exercise control and simulation was very good. There were generally

adequate controllers to control the exercise and good scenario play.

However, problems were noted in the handling of radiological information

within the OSC. There was no controller assigned to provide the

radiological data that was developed for the OSC. The lead OSC

controller had to provide the data when it was noticed no one else was

assigned to do so. Also, the OSC continuous air monitor and the

portable frisker at the OSC contamination control point lacked data to

i

accurately simulate the Turbine Building release. NRC review of the

licensee's corrective actions associated with the lack of radiological

data for the OSC will be tracked as an inspection followup item

(Inspection Followup Item Nos. 50-282/93016-04; 50-306/93016-04).

No violations or deviations were identified.

9.

Licensee Critioue (IP 82301)

The licensee's controllers held initial critiques in each facility with

l

the participants immediately following the exercise.

Several of these

4

critiques were observed and were determiried to be detailed.

Inputs from

all participants were sought.

A formal critique was held on September 2,1993, prior to the NRC exit

interview. The licensee identified several improvements in how to deal

with the type of contamination problems that the Turbine Building

a

release presented during the exercise. A summary of the licensee's

preliminary, self-identified, performance strengths and weaknesses was

presented, which were generally in agreement with the inspectors'

preliminary findings.

No violations or deviations were identified.

10.

Exit Interview

On September 2,1993, the inspectors met with those licensee

representatives identified in Section 2 of this report in order to

present and discuss the preliminary inspection findings.

The licensee indicated that none of the matters discussed were

,

. _ _

, . _

_

_

_

.

. . . _ . . _.

.

..

.

_

.,

.

"t

!

--

.;

i

.

4

,

I

proprietary in nature.

~

Attachments:

l

i

1.

Scope of Participation and

Exercise Objectives

!

2.

Exercise Scenario Summary

,

i

,

5

I

?

,

L

'

l

f

!

!

,

I

l

,

i

1

F

9

.

__

- . _

_

-

i

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

.

1993

(

NORTHERN STATES POWER COMPANY

SECTION II: OIlJECTIVES AND GUIDELINES

O

l

pitc/E-Plan

Page I of 29

SECTION II

_

_

_

__

i'

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

'

.

1993

(

EXERCISE OBJECTIVES AND GUIDELINES

Northern States Power Company (NSP) will exercise its Emergency Response Plan on

August 31, 1993. The Exercise will include mobilization of the organizations named

below such that the capability to adequately respond to a simulated accident at the

Prairie Island Nuclear Generating Plant (PINGP) can be verified.

State and County

agencies will not participate in this Exercise.

Objectives and guidelines have been developed for the conduct of this Exercise. NSP's

objectives and guidelines are contained in the text of this section.

Exercise participants will include the following organizations:

A.

Northern States Power Company

1. Onsite Emergency Itesponse Organization

a.

Control Room

b. Technical Support Center

c.

Operations Support Center

d. Emergency Operations Facility

2. Corporate Emergency Itesponse Organization

Headquarters Emergency Center (Communication Only)

a.

B.

Dakota. Goodhue/ City of Red Wing, and Pierce Counties and supporting local

,

agencies, as identified in their Emergency Response Plans for the Prairie Island

Nuclear Generating Plant, will provide communication only.

C. State of Minnesota - Division of Emergency Management and supporting

agencies, as identified in the Minnesota Emergency Response Plan for nuclear

power plants, will provide communication only.

D. State of Wisconsin - Division of Emergency Government and supporting

agencies, as identified in the Wisconsin Peacetime Radiological Emergency

Response Plan for nuclear power plants, will provide conununication only.

Active participation in the Exercise will only be required of the above listed

organizations.

If the Exercise scenario requires that any other organizations and/or

officials be contacted, they shall be contacted only for the purpose of checking

communications.

Each objective is followed by guideline statements which define the " extent of play" by

the participants.

Plant and Corporate Emergency Plan Implementing Procedures

(EPIPs), which may be used to support the objective, are also listed for each objective.

O

pitc/E-Plan

Page 2 of 29

SECTION II

_ _

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

,

1993

EXERCISE OBJECTIVES FOR TIIE NSP (LICENSED)

EMERGENCY ORGANIZATION

i

I. ANNUAL ELRMENTS

Objective #1.0: Accident Detectian_and Assexsment

l

i

Given simulated accident conditions, PINGP site personnel shall demonstrate

detection and assessment of plant operational parameters and operational data.

Guidelines:

1.1

Plant systems and effluents (non-radiological) will be monitored and

assessed in the Control Room, TSC and EOF for accident conditions.

1.2

Radiological assessment will include initial and continuing assessment

,

of the accident through evaluation process and area radiation monitors.

'

The following EPIPs may be used to support the objectives stated above:

PINGP F3-2

Classifications of Emergencies

PINGP F3-6

Activation and Operation of TSC

PINOP F3-7

Activation and Operation of OSC

PIN GP F3-8

Recommendations for Offsite Protective

Actions

PINGP F3-13

Offsite Dose Calculations

PINGP F3-17

Core Damage Assessraent

PIN GP F3-20

Manual Determination of Radioactive

Release Concentrations

PINGP F3-24

Recordkeeping During an Emergency

PINGP F3-26.1

Operation of the TSC ERCS Display

PINGP F3-26.2

Radiation Monitor Data on ERCS

,

PINGP F8-3

Activation and Operation of EOF

PINGP F8-5

Offsite Dose Assessment and Protective

Actions

PINGP F8-10

Recordkeeping in the EOF

O

pitc/E-Plan

Page 3 of 29

SECTION II

__

.

!

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

1993

/

Objective #2.0: Emergency Classification

Given simulated accident conditions, appropriate PINGP site personnel shall

correctly identify and classify the emergency as an NUE, ALERT,

SITE AREA or GENERAL EMERGENCY as specified in the Prairie Island EPIP

F3-2.

Guidelines:

2.1

When given initiating conditions of an emergency action level, the

Emergency Director / Emergency Manager will classify the emergency

l

consistent with the PINGP's emergency classification scheme. The

l

postulated plant conditions will necessitate classifications beginning

l

at a NOTIFICATION OF UNUSUAL EVENT and escalating to a SITE

!

AREA EMERGENCY.

!

2.2

The responsible person will find the initiating conditions of the accident

'

scenario in F3-2 " Classifications of Emergency".

The following EPIP will be used to support the objective stated above:

PINGP F3-2

Classifications of Emergencies

t

.

.

r

,

O

pitc/E-Plan

Page 4 of 29

SECTION II

-

,

!

_.

t

'

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

i

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

Objective #3.0: Natificatinn of nnsite and Offsite Rmergency Respanaers

l

Given simulated accident conditions, PINGP site personnel shall promptly

complete accident notifications to the appropriate State and County / City agencies

(15 minutes), the NRC (1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />), PINGP personnel and NSP Corporate

Emergency Response Organization (1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />).

Guidelines:

3.1

Notifications of emergency classifications to the States of Minnesota and

Wisconsin, and the counties of Dakota, Pierce and Goodhue/ City of Red

Wing will be completed within 15 minutes. Initially, these notifications will

be made by the Shift Emergency Communicator (SEC) at the plant.

Emergency communicators at the Emergency Operations Facility (EOF) will

assume these responsibilities as it becomes operational.

3.2

The SEC and NSP System Operation will notify and mobilize NSP

Emergency Response personnel at the. ALERTlevel of classification (within

'

,

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

3.3

The SEC or EOF Communicator will notify state and local organizations

{

using the plant or EOF Notification Report Form.

O

'

3.4

The cee<< > aee- 1 tr < sac -ti> =ettri the e'"or Per

ei er -

emergency classification and changing emergency conditions via the plant

page as necessary.

The following EPIPs may be used to support the objective stated above:

PINGP F3-3

Responsibilities During a NUE

PINGP F3-4

Responsibilities During an Alert, Site

'

Area or General Emergency

PINGP F3-5

Emergency Notifications

PINGP F3-5.1

Switchboard Operator Duties

PINGP F8-3

Activation and Operation of the EOF

PINGP F8-2

Responsibilities During an Alert, Site

Area or General Emergency in the

EOF (Sec. 4.5)

O

pitc/E-Plan

Page 5 of 29

SECTION II

_

_

_

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

'

.

1993

Objective #4.0: rnmmunicarians

l

Given simulated accident conditions, PINGP site personnel shall initiate and

maintain communication links with the NSP Emergency Response Organization,

and state and local Emergency Response Organizations.

Guidelines:

4.1

The following communications will be used:

4.1.1

24-hour communication links for notification and activation of

state and local EROS, and if appropriate, their alternates.

4.1.2

All other communications links to state / local EROS.

4.1.3

Communication links to Fe/ ral Emergency Response

Organizations as appropriate.

i

4.1.4

Communications links among the plant and the EOF, HQEC,

Radiation survey teams and JPIC.

4.1.5

Communications links that activate the various emergency

1

organizations.

O

-

4.1.6

Communications links with the NRC Region III and NRC

Headquarters and the EOF.

&&lif '

The following objective would normally be demon-

b;gggR strated during the annual Emergency Medical Exercise.

.

4.2

The communications link between the plant and the fixed or mobile

medical support facilities will not be demonstrated.

4.3

Emergency Notification Followup Message form will be generated on a

periodic basis from either the TSC or EOF, depending on what

organization is in charge of conununications with State EROS.

4.4

Procedures and equipment used to alert, notify and mobilize the NSP

Emergency Response Organization will be demonstrated.

O

pitc/E-Plan

Page 6 of 29

SECTION II

u

w-

-

-

-

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

.

1993

'

,

\\

Objective #4.0: c'ammunientions (cont'd)

4.5

NSP will demonstrate prompt communications to state / local emergency

organizations regarding recommendations for protective actions to the

general public within the 10-mile EPZ regarding changes in protective

action recommendations.

The following EPIPs may be used to support the objective stated above:

PINGP F3-5

Notifications

PINGP F3-6

Activation and Operation of TSC

PINGP F3-7

Activation and Operation of OSC

i

PINGP F3-8

Recommendations for Offsite Protective

Actions

PINGP F3-8.1

Recommendations for Offsite Protective

i

Actions for the On-Shift Emergency

Director / Shift Supervisor

PINGP F3-15

Responsibilities of the Radiation Survey

Teams During a Radioactive Airborne

Release

PINGP F3-16

Responsibilities of the Radiation Survey

Teams During a Raumactive Liquid

Os

,

Release

!

PINGP F4

Medical Support and Casualty Care

PINGP F8-2

Responsibilities During an Alert, Site

Area, or General Emergency in the EOF

PINGP F8-3

Activation and Operation of the EOF

PINGP F8-5

Offsite Dose Assessment and Protective

Action Recommendations

l

1

1

l

J

O

pitc/E-Plan

Page 7 of 29

SECTION II

1

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

l

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

,

,

Objective #5.0: Radiologi, al Frpnwre rnntrol

l

Given simulated accident conditions, PINGP site personnel shallinitiate and

maintain a program of emergency radiological exposure control.

Guidelines:

5.1

Emergency Worker and Lifesaving Activity Protective Action Guides may be

considered for undertaking corrective actions, performing assessment

actions, and performing personnel decontamination,

,

l

5.2

Procedures for authorizing doses in excess of 10CFR 20 may be considered,

as appropriate.

5.3

Dosimetry shall be issued and read and recorded at appropriate intervals in

the various emergency centers.

5.4

De. contamination action levels shall be considered and appropriate

decontamination completed.

5.5

Radiological monitoring of personnel evacuated from the site shall be

considered as appropriate, but a site evacuation is not expected for this

Exercise.

O

-

5.6

The need for respiratory protection, protective clothing and radioprotective

drugs shall be considered, as appropriate.

The following EPIPs may be use.d to support the objective stated above:

PINGP F3-4

Responsibilities During an Alert, Site Area

!

or General Emergency

,

PINGP F3-6

Activation and Operation of TSC

,

PINGP F3-7

Activation and Operation of OSC

PINGP F3-9

Emergency Evacuation

PINGP F3-11

Search and Rescue

i

PINGP F3-12

Emergency Exposure Control

!

PINGP F3-18

Thyroid Blocking Agent

PINGP F3-19

Personnel Monitorin' and Decontamination

PINGP F3-21

Establishment of a Secondary Access

Control

PINGP F3-24

Reentry

PINGP F8-3

Activation and Operation of the EOF

PINGP F8-6

Radiological Monitoring and Control at the

EOF

O

pitc/E-Plan

Page 8 of 29

SECTION II

'

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

.

1993

O

Objective #6.0: Erotective Actinn Recomrnendarinns

,

Given simulated accident conditions, PINGP site personnel shall develop and

promptly communicate protective action recommendations for the protection of the

health and safety of the public.

Guidelines:

6.1

Recommended protective actions for the general public offsite will be

considered and communicated to the appropriate state agencies as

l

appropriate.

The following EPIPs may be used to support the objective stated above:

PINGP F3-1

Onsite Emergency Organization

PINGP F3-5

Emergency Notifications

PINOP F3-8

Recommendations for Offsite Protective

Actions

PINGP F3-8.1

Recommendations for Offsite Protective

Actions for the On-Shift Emergency

Dire-ctor/ Shift Supervisor

PINGP F3-13

Offsite Dose Calculations

O

PINGP F8-3

Activation and Operation of the EOF

PINGP F8-5

Offsite Dose Assessment and Protective

Action Recommendations

O

pitc/E-Plan

Page 9 of 29

SECTION II

.

.

,

,

j

.

!

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

1993

Objective #7,0: Staff Augmentation

Given simulated accident conditions, PINGP site personnel shall promptly

activate and maintain emergency organization staffing requirements as required

by the Prairie Island Emergency Plans.

l

Guidelines:

,

7.1

Concepts of operation in NSP emergency operating centers (EOCs) will

be tested.

7.2

24-hour coverage for all emergency organizations will be considered.

!

,

7.3

The Emergency Operating Facility (EOF) will be staffed to augment the

!

plant staff.

7.4

Augmentation of contractor services will be simulated.

!

e follouing ol>jectiu uould nonnally be dernon-

!

' NOTE.'

strated during the annual Emergency Medical Exercise.

i

7.5

Demoistration of agreements with local police, fire ambulance and

hospital support for a medical emergency will not be demonstrated.

,

The following EPIPs may be used to support the objective stated above:

'

PINGP F3-1

Onsite Emergency Organization

PINGP F3-6

Activation and Operation of TSC

PINGP F3-7

Activation and Operation of OSC

PINGP F8-3

Activation and Operation of the EOF

i

t

[

,

pitc/E-Plan

Page 10 of 29

SECTION II

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

4

1

1

Objective #8.0: ShifLStaffing

l

Given simulated accident conditions, PINGP site personnel shall demonstrate

normal shift staffing as .ctated in the appropriate Emergency Plan.

Guidelines:

i

8.1

Normal staff personnel will demonstrate adequate shift staffing of emergency

i

organization positions.

]

\\

8.2

The Interim Emergency Director position and his associated responsibilities

will be demonstrated.

8.3

Turnover from the Interim Emergency Director to the designated Emergency

Director will be demonstrated.

8.4

Specified positions in the Emergency Plan as stated in the Participant

section will demonstrate their assigned duties.

The following EPIPs may be used to support the obhetive stated above:

PINGP F3-1

Onsite Emergency Organization

PINGP F3-3

Responsibilities during a Notification of

O

u

>i sve 1

PINGP F3-4

Responsibilities During an Alert, Site Area

or General Emergency

PINGP F8-3

Activation and Operation of the EOF

1

l

'

l

l

pitc/E-Plan

Page 11 of 29

SECTION II

1

l

_

,_

. .

- - - , , - - - .

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

.

,

1993

OII. QUINOUENNIAI. FI.EMENTS

Objective #9.0: Off HourtStaffbig

Given simulated accident conditions, PINGP site personnel shall demonstrate off

hours shift staffing.

Guidelines:

9.1

PINGP site personnel will not demonstrate off hours shift staffm' g during

this exercise.

'

O

i

pitc/E-Plan

Page 12 of 29

SECTION II

,

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

,

.

1993

O

Objective #10.0: Activation nf Emergency Nnn Onter

Given simulated accident conditions, NSP Corporate personnel shall demonstrate

staffing of the Joint Public Information Center (JPIC).

Guidelines:

-

10.1

The duties of the Executive spokesperson and Communications

representative will not be demonstrated.

!

O

)

I

I

l

1

l

!

1

l

O

pitc/E-Plan

Page 13 of 29

SECTION II

-

--

.--

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

Objective #11.0: llenf Fire Cnntrn! Teams

Given simulated accident conditions, PINGP personnel shall demonstrate staffing

of the Fire Brigade in response to a simulated fire.

Guidelines:

11.1

The scenario will not demonstrate staffing or implementation of fire

control teams.

11.2

Use of trained fire brigade personnel will not be demonstrated.

e

O

iP tc/E-Plan

Page 14 of 29

SECTION II

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

,

1993

Objective #12.0: Ilse of Firo Aid ondlar Resene Trame

Given simulated accident conditions, PINGP personnel shall demonstrate first aid

capability.

Guidelines:

12.1

Emergency Worker and Lifesaving Activity Protective Action Guides will

be demonstrated for removal of an injured person, providing first aid and

medical treatment and providing ambulance service.

l

1

12.2

Implementation of procedures for authorizing doses in access of

10CFR 20 to support a contaminated injured person will not be

demonstrated.

12.3

The issuance and control of dosimetry to support a contaminated injured

person will be demonstrated.

12.4

Decontamination procedures for support of a contaminated injured

person will be demonstrated.

12.5

Onsite first aid capability will be demonstrated.

O

12.6

Use of trained first responders /EMTs for support of a contaminated

injured person will be demonstrated.

The following EPIPs may be used to support the objective stated above:

PINGP F3-4

Responsibilities During an Alert, Site Area

or General Emergency

PINGP F3-9

Emergency Evacuation

PINGP F3-11

Search and Rescue

PINGP F3-12

Emergency Exposure Control

PINGP F3-18

Thyroid Blocking Agent

PINGP F3-19

Personnel Monitoring and Decontamination

PINGP F3-21

Establishment of a Secondary Access

Control

PINGP F3-24

Reentry

PINGP F4

Medical Support and Casualty Care -

O

pitc/E-Plan

Page 15 of 29

SECTION II

-

,

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

,

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

'

objective #I3.0: Ihe.nf AtedicaLSupport Persnnnel

Given simulated accident conditions, PINGP personnel shall demonstrate the

capability of treating a contaminated injured person.

Guidelines:

13.1

A medical emergency drill will be conducted on site. Offsite support will

not be demonstrated during this exercise.

'

13.2

Arrangements for local and back-up hospital and medical services for

the treatment of a contaminated injured person will be simulated.

j

13.3

Arrangements for the transport of a contaminated injured person will be

'

simulated.

<

13.4

The use of trained first responders /EMTs to a simulated contaminated

injure.d person will be demonstrated.

The following EPIPs may be used to support the objective stated above:

1

PINGP F4

Medical Support and Casualty Care

O

'

I

i

l

l

l

4

O

pitc/E-Plan

Page 16 of 29

SECTION II

.

I

-

-

.-

-

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

!

O

Ohicctive #14.0: the of Headquarters Support Perennnel

Given simulated accident conditions, Corporate personnel shall demonstrate

the capability of activation and staffing of the Headquarters Emergency Center

(HOEC).

Guidelines:

14.1

The staffing and activation of the HQEC will NOT be demonstrated.

l

l

,

O

,

t

,

O

.

pitc/E-Plan

Page 17 of 29

SECTION II

'

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

,

1993

O

Objective #13.0: Use nf Security Persnnnel in Provide Prnmpt Arrets for

Emergency FrjuipmenLand Supparl

Given simulated accident conditions, PINGP security personnel shall demonstrate

the capability of providing emergency equipment and prompt access for emergency

support vehicles (e.g., fire and ambulance).

Gu'.delines:

mm

$5 - These objectives would no mally be

?? NOTE:bf =4 ~'Medical Exercise

demonstrated during the annual Emergency

>

n7

l~7

15.1

PINGP security personne' will not demonstrate the capability '

providing access for emergency personnel and vehicles.

15.2

PINGP security personnel will demonstrate support of a medical

emergency.

The following EPIPs may be used to support the objective stated above:

PINGP F4

Medical Support and Casualty Care

PINGP F5

Fire Fighting

(

.

O

pitc/E-Plan

Page 18 of 29

SECTION II

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

Obieclivc #16.0: Ilse of Backup Commnnicarinnn

Given simulated accident conditions, PINGP site personnel shall demonstrate the

capability of providing backup communications in the event of a failure of primary

communications links.

Guidelines:

16.1

The use of backup communications equipment will be demonstrated if the

I

primary means of communication fails to operate.

The following EPIPs may be used to support the objective stated above:

PINGP F3-5

- Notifications

PINGP F3-6

Activation and Operation of TSC

,

PINGP F3-7

Activation and Operation of OSC

PINGP F3-8

Recommendations for Offsite Protective

Actions

PINGP F3-8.1

Recommendations for Offsite Protective

,

!

Actions for the On-Shift Emergency

Director / Shift Supervisor

PINGP F3-15

ResponsibiUties of the Radiation Survey

O

Teams During a Radioactive Airborne

Release

PINGP F4

Medical Support and Casualty Care

,

PINGP F8-2

Responsibilities During an Alert, Site Area,

t

or General Emergency in the EOF

J

PINGP F8-3

Activation and Operation of the EOF

PINGP FS-5

Offsite Dose Assessment and Protective

Action Recommendations

.

O

pitc/E-Plan

Page 19 of 29

SECTION II

.-

._

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

~

1993

,

s

Objeetive #17.0: Riunar_Cantrol

'

Given simulated accident conditions, Corporate personnel shall demonstrate the

capability of providing rumor control.

Guidelines:

17.1

The Media Liaisons in the HOEC and JPIC will not demonstrate rumor

control procedures specified in the Nuclear Emergency Communications

Program.

l

1

i

1

O

pitc/E-Plan

Page 20 of 29

SECTION II

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

Objective #18.0: 11sewf Emergency Power

Given simulated accident conditions, PINGP site personnel shall demonstrate the

capability of continued operation of the affected emergency center (s) in the event

of a failure of primary power.

.

This objective refers to Emergency Response Facilities (ERF) that have

[$QTE:..

their own non-automatic backup power. NSP ERF's have automatic

backup power, therefore we would never expect to demonstrate this

objectiv .

)

i

1

O

O

pitc/E-Plan

Page 21 of 29

SECTION II

-

.- -

.

_.

.

..

-

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.O

.

1993

Objective #19.0: Eracuation of EmergencyJtesportsp FacilitiMERF) and

Reinention_ta Rarleup RRFe

l

,

Given simulated accident conditions, PINGP and Corporate personnel shall

demonstrate the capability of evacuation of and relocation to a backup ERF.

Guidelines:

t

19.1

Evacuation of ERFs will not be demonstrated.

.

!

!

!

O

t

I

!

l

,

!

i

i

l

i

!

O

pitc/E-Plan

Page 22 of 29

SECTION P

.

-

-

-

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

Objective #20.0: Ingesdon Eaduray

Given simulated accident conditions, PINGP and Corporate personnel shall

support the demonstration by State and Local Government Ingestion Pathway

requirements.

Guidelines:

20.1

Ingestion Pathway requirements with State / Local Governments will not

be demonstrated.

1

i

.

.

O

'

'

1

.

I

)

O

pitc/E-Plan

Page 23 of 29

SECTION II

l

.

i

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

1993

r.

Objective il2I.0: Eield_ Monitoring

Given simulated accident conditions, P]NGP and Corporate personnel shall

demonstrate monitoring of offsite radiological releases through a program of

surveying, sampling 2nd analyzing.

Guidelines:

21.1

FicV Monitoring teams from Prairic Island will be dispatched;

F# .wcello Field Monitoring Teams will be simulated.

.

21.2

M nitoring will include the collection and/or analysis of beta / gamma

surveys, contamination surveys and air samples as required.

21.3

Monitoring of water, soil, and air will be demonstrated or simulated as

appropriate.

The following EPIPs may be used to support the objective stated above:

PINGP F3-15

Responsibilitics of the Radiation Survey

Teams During a Radioactive Airborne

Release

Ox

PINGP F8-3

Activation and Operation of the EOF

PINGP F8-6

Radiological Monitoring and Control at

the EOF

l

/

t%

,

'5

pitc/E-Plan

Page 24 of 29

SECTION II

._

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

.

1993

Objective 22.0: Sown Ternt Analyk

Given simulated accident conditions, PINGP and Corporate personnel shall

demonstrate the capability for determining the magnitude and impact of a

radioactive release.

i

Guidelines:

'

22.1

The Meteorological Information and Dose Assessment System (MIDAS)

will be used to estimate the total amount of activity released.

22.2

MIDAS will be used to determine projected doses under varying

meteorological conditions.

22.3

Manual dose projections may be demonstrated in this Exercise.

22.4

The Radiation Monitoring teams may be dispatched to verify the dose

projections.

'

22.5

Iodine sampling will be completed as appropriate by the field survey

teams.

22.6

Dose projections from MIDAS or actual field data will be used to

determine protective action recommendations.

The following EPIPs may be used to support the objective stated above:

PINGP F3-4

Responsibilities During an Alert, Site Area

or General Emergency

PINGP F3-8

Recommendations for Offsite Protective

Actions

PINGP F3-13

Offsite Dose Calculations

PINGP F3-15

Responsibilities of the Radiation Survey

Teams During a Radioactive Airborne

Release

PINGP F8-5

Offsite Dose Assessment and Protective

Action Recommendations

O

pitc/E-Plan

Page 25 of 29

SECTION II

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 0

.

-

1993

O

Objective 23.0: Ihst=AccidenLSampling

Given simulated accident conditions, PINGP personnel shall demonstrate the

ability to obtain and analyze various inplant liquid and air-type samples.

Guidelines:

23.1

Inplant post-accident sampling may include sample analysis of reactor

coolant, containment atmosphere and Shield Building vent as appropriate

within three (3) hours of sampling.

The following EPIPs may be used to support the objective stated above:

PINGP F3-20

Determination of Radioactive Release

Concentrations

PINGP F3-23

Emergency Sampling

'

i

O

i

O

pitc/E-Plan

Page 26 of 29

SECTION II

i

. _ _ _

, _ _

,

__

.

.

j

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

)

EMERGENCY PLAN EXERCISE

Rev. 0

.

1993

O

Ohicctive #24.0: Batassiwn_ Iodide

Given simulated accident conditions, PINGP site personnel shall demonstrate the

ability to distribute potassium iodide.

Guidelines:

24.1

The scenario will not require the need for use of Potassium Iodide for

personnel in the Emergency Response Organization.

i

l

O

,

i

O

!

pitc/E-Plan

Page 27 of 29

SECTION II

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLA.N EXERCISE

Rev. 0

.

1993

O

Objective #25.0: Assembly and. Accountability

Given simulated accident conditions, PINGP personnel shall demonstrate a plant

evacuation and perform personnel accountability within 30 minutes following a

plant evacuation.

Guidelines:

25.1

Upon declaration of a plant evacuation, personnel accountability will be

completed within 30 minutes.

The following EPIPs may be used to support the objective stated above:

PINGP F3-9

Emergency Evacuation

PINGP F3-10

Personnel Accountability

PINGP F3-29

Emergency Security Procedures

.

i

O

i

O

'

pitc/E-Plan

Page 28 of 29

SECTION II

.

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev.0

1993

O

Objective #26.0: Rccarcy_and_Rcenty

Given simulated accident conditions, PINGP site personnel shall demonstrate

recovery and reentry procedures.

.

l

Guidelines:

l

26.1

Activation of the Recovery Organization may be demonstrated by

involving the Recovery Manager in staff planning and discussion with

the Emergency Manager and the Emergency Director.

The following EPIPs may be used to support the objectives stated above:

PINGP F8-9

Event Termination or Recovery

PINGP F3-30

Recovery

'

,

!

O

,

i

!

f

O

pitc/E-Plan

Page 29 of 29

SECTION II

'

,

-- - -------.- - - --

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 2

-

1993

0

.

P

.

',

i

NORTHERN STATES POWER COMPANY

SECTION VI Part I: NARRATIVE SUMMARY

'

O

,

i

!

,

O

'

pitc/E-Plan

Page 1 of 5

SECTION VI Part I

a

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 2

-

1993

O

' TIME:

<

-

. n.

.:

+

? EVENT SUMMARYJ

m

~

w -

0715

Turnover is completed for the operating crew

INITIAL CONDITIONS:

Units 1 and 2 are operating at 100%

Small amount offailed fuel; Temporary Memo to 1C1.4

restricts power ramp rates to 0.5%Imin.

13 Heater Drain Pump is isolated and cooling down for a

maintenance PM.

121 Air Compressor is isolated and disassembled for repair

work.

0720

A seismic event occurs resulting in:

1.

11 Charging Pump electrical contactor opens; the pump stops, resulting

in a loss of charging flow /RCP seal injection. The operator will start a

2nd Charging Pump and initiate an investigation into the failure of 11

Charging Pump; no problems will be found.

2.

D5 starts due to a failure in the SIMR relay circuit. D5 cannot be

shutdown from the control room. D5 shutdown can be accomplished by

using the Emergency Stop push-button on the local operating panel; D5

will be rendered inoperable by this action-Unit 2 will be placed into a

7 day LCO.

3.

A tube leak (approx. 7 gpm) develops on 11 Steam Generator (SG);

this leakrate exceeds Tech Spec limits (T/S 3.1.C) and thus will require

the plant to be shutdown and placed into Hot Shutdown.

0730

The Lockmaster reports that a tremor has caused one roller gate at lock #3 to

become dislodged from its moorings and river level control has been

,

temporarily lost.

1

0735

An NUE is declared based on EAL 20B (Tech Spec Required shutdown)-

l

,

l

and/or EAL19A (Confirmed seismic event) and/or EAL 4A (Primary to

Secondary leak rate exceeding Tech Specs).

O

pitc/E-Plan

Page 2 of 5

SECTION VI Part 1

i

.

.

.- _ -_

. ._

__

..

l

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev 2 -

i

.-

1993

i

Crpwr-wnwmm

pmmmmmmemwnemm5

iTIMEP

2

R

fEVENT SUMMARY

4

M uw w w a a n w a?m ed

umuumanam

.

!

!

l

0745

The Control Room receives confirmation from I&C that an " Operational

'

Based Earthquake (OBE)" has occurred as well as a confirmation from the

j

Duty Chemist that a SG tube leak has developed.

0800

An ALERT is declared based on EAL 19B (OBE).

I

0900

The tube leak on 11 SG develops into a 300 gpm Steam Generator Tube

Rupture (SGTR).

'

!

0910

The size of the SGTR requires a plant trip and SI initiation. When SI

actuates, the following will occur:

1.

The 11 Turbine-Driven Aux Feedwater Pump (TDAFP) will auto-start.

O

2.

A failure of the turbine speed control governor and overspeed

i

protection device results in the TDAFP overspeeding without tripping.

3.

The TDAFP undergoes blading failure and throws blades through the

casing. These thrown blades cause the following to occur-

)

The air supply vent valve (AR-292) to CV-31998 (11 TDAFP

a.

Steam Supply) is damaged, resulting in CV-31998 failing open

and disabling remote control capability.

b.

Two maintenance workers were just preparing to enter the ARV

Pump Room (Unit I door) as the 11 TDAFP disintegrates.

,

Both workers are injured by the flying debris. The door is

unable to close (unconscious worker and tool cart) allowing

contaminated steam to escape and generating a security alarm

for which a Security Officer will be dispatched. The Security

Officer will find the injured workers, assist in getting the door

closed and initiate EMT response.

A steam leak in the ARV ' Room resulting in a fire alarm and

c.

Steam Exclusion actuation.

O

l

I

pitc/E-Plan

Page 3 of 5

SECTION VI Part 1

.- . . -

,

,

-.

- - . .

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 2

1993

O

~

TIME '

TEVENT SUMMARYL

.-

0930

The operators have progressed through E-0 (Reactor Trip or Safety Injection

Recovery) and transition to E-2 (Faulted SG lsolation).

When attempting to isolate the steam supply to the TDAFP from the ruptured

11 SG, the steam supply motor-operated valve (MV-32016) fails and cannot

be closed either electrically or manually.

Maintenance personnel will be dispatched to continue attempts to close

{

MV-32016 to isolate steam to the TDAFP.

Personnel may also be dispatched to attempt to close CV-31998. This valve is

locked inside the security box located outside of the AFW Room. Access

'

will not be allowed at this time due to heavy steam in the area.

t

0940

A SITE AREA EMERGENCY will be declared based on EAL 4D and/or 7C

(Ruptured SG that is also Faulted outside of CTMT). .A plant evacuation

should be declared.

0955

On-site medicrl exercise portion completed.

)

'

1030

If access to CV-31998 becomes possible, a pressurized air or nitrogen supply

I

will be used to close the steam supply to the TDAFP. The radioactive steam

,

leak will be isolated.

1100

The plant is heading towards cold shutdown using procedure ECA-3.1. The

RCS is either being cooled by RIIR or is close to being cooled by RIIR at

this time.

1130

Exercise stops for a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> time step.

O

pitc/E-Plan

Page 4 of 5

SECTION VI Part 1

1

.

.

-

-

.

.

PRAIRIE ISLAND NUCLEAR GENERATING PLANT

EMERGENCY PLAN EXERCISE

Rev. 2

1993

O

'

=-

- -

L TIME-

^ JEVENT SUMMARY;

.u

a_

.

.

,

1200

Exercise resumes; new conditions:

,

1.

No significant radioactive releases from the site occurring.

2.

Iloth units are in Cold Shutdown; all safety systems have been inspected

with no damage found (except for 11 TDAFP)

3.

MV-32016 has been repaired and closed.

,

1300

R6covery is initiated.

i

1330

Exercise is terminated.

'

i

l

i

l

O

pitc/E-Plan

Page 5 of 5

SECTION VI Part I