ML20071D905

Public Version of Revised Emergency Plan Implementing Procedures,Including Procedures A.2-406 Re Offsite Dose Projection & A.2-422 Re Stack Iodine/Particulate Sampling & Analysis

ML20071D905
Person / Time
Site:	Monticello
Issue date:	02/02/1983
From:	Fey F, Roy R NORTHERN STATES POWER CO.
To:
Shared Package
ML113190860	List: ML20071D905
References
PROC-830202-01, NUDOCS 8303090698
Download: ML20071D905 (22)

Text

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. ihternal Ocrrescoricence

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cat. 'Januarv 24, 1983 p,, g,'L. Roy 1.ocation MontiCe110 r* '* * " n Various Special Distribution: fr.crgency Procedures sun ct . Revised Procedures for Trergency Procedures Pcok Revisions to the Emergency Procedures were reviewed in a recent Ocerations Comittec Meeting. Listed below are the procedures superseded and revised.

Other pages not revised my have been reprinted with the revised pages to facilitate updating the Book.

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Superseded Paces Procedure A.2-406, (Pages 1 through 17), Revision 5

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Revised Pages

• Procedure A.2-406, (Pages 1 through 17), Revision 6 1 Prepared by: Is W '

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Reviewed by: ,

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Op. Com.- Final Review: Meeting # // 7 t-/ ~ Date /~O- I 3 Approved by: b d "bn _ Date 9 E' 3 1

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8303090698 830302 i PDR ADOCK 05000263 T' F PDR /

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,, .lat5rnal CorreS00ncence . ,

cai. January 31, 1983

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6=. ~ D. V. Bistodeau- ucanen ~ 31onticello 3* aca%n Various +

Special' Distribution of Dnergency Procedures i

suspet - Pevised Procedures' for FJnergency Procedures Book  ;

Revisions to the Fr.crgency Procedures were reviewed in a recent Ocerations Cornittee 3'.eeting. Listed below are the procedures superseded and revised.

Other pages not revised may'have been reprinted with the revised pages to facilitate' updating the Bcok.

Superseded Pages

List of Current Pages, (Dated January 1,1983) ,

- Procedure A.2-422, (Pages 1 through 5), Revision 0 Procedure A.2-423, (Pages 1 through 5), Revision 0  ;

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4 Revised Paces  !

List of Current Pages, (Dated January 31,1983) f Procedure A.2-422, . (Pages 1 through 5), Revision 1  !

l Procedure A.2-423, (Pages 1 through 5), Revision 1

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Prepared by: _

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Reviewed by: [T 4 1 /  !

Op. Com. Final Review: $bbng # 1179 Date 1/27/R3  !

APProved by: N j la.\ Date 0 /2,// J c <

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. 01/31/83 A.2 EMERGEflCY PLAN IMPLE!!EflTING PROCEDURES LIST OF CURRENT PAGES PROCEDURE PROCEDURE TITLE REVIS! Oil NUMBER t

000 Series Organization A.2-001 Emergency Organization 4 100 Series Activation A.2-101 Classification of Emergencies 3 A.2-102 Notification of an Unusual Event 3 A.2-103 Alert- 4 A.2-104 Site Area Emergency 3 A.2-105 General Emergency 3 A.2-106 Activation of Technical Support Center 3 A.2-107 Activation of Operations Support Center 4 200 Series Assessment A.2-201 On-Site Monitoring and Protective Action Criteria 2 A.2-202 Off-Site Monitoring During an Emergency 1 A.2-203 Deleted 3-1-82 A.2-204 Off-Site Protective Action Recommendations 2 A.2-205 Personnel Accountability 1 A.2-206 Deleted 3-1-82 A.2-207 Sampling Priorities During an Emergency 0 A.2-208 Core Damage Assessment 0 300 Series Protective Actions A.2-301 Emergency Evacuation 1 A.2-302 Assembly Point Activation 2 A.2-303 i Search and Rescue 2

! A.2-304 Thyroid Prophylaxis 2

400 Series Radiological Surveillance and Control A.2-401 Emergency Exposure Control 2 A.2-402 Contamination Control 1 A.2-403 In-Plant Emergency Surveys 2 A.2-404 Airborne Iodine Sampling and Analysis 3 A.2-405 Release Rate Determination 2 A.2-406 Off-Site Dose Projection 6 A.2-407 Personnel and Vehicle Monitoring 2 A.2-408 Sample Coordination During an Emergency 1 A.2-409 Self-Contained Breathing Ac9aratus (SCBA) Use During An Emergency 0 A.2-410 Out-of-Plant Surveys 1 A.2-411 Establishment of Secondary Access Control 0 A.2-412 Deleted 1-6-83 '

A.2-413 Small Volume Liquid Sample Obtained at the Post Accident Sampling System 0 A.2-414 Large Volume Liquid Sample and/or Dissolved Gas Sample Obtained at Post Accident Sampling System 0 A.2-415 Containment Gas Sample Obtained at Post Accident Sampling System 0

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. A.2 EMERGENCY PLAN TMPLEMENTfMG PROCEDURES LIST OF CURRENT PAGES PROCEDURE PROCEDURE TITLE REVISION NUMBER 400 Series Radiolooical Surveillance and Control (Cont'd.)

A.2-416 Containment Iodine and Particulate Samples Obtained at Post Accident Sampling System 0 A.2-417 Oraining the Trap, Sump and Collector of Post Accident Sampling System 0 A.2-418 Post Accident Sampling Station Demin Water Tank Fill Procedure 0 A.2-419 Liquid Radiochemical Analysis 0 A.2-420 Containment Atmosphere Radiochemical Analysis O A.2-421 Containment Atmosphere Iodine / Particulate Analysis 0 A.2-422 Stack Iodine / Particulate Sampling & Ana?ysis 1

. A.2-423 Reactor Building Vents Iodine / Particulate Sampling and Analysis 1 A.2-424 EOF Count Room Counting Procedure 0 500 Series Communications and Documentation A.2-501 Communication During an Emergency 1 A.2-502 Recordkeeping During an Emergency 0 A.2-503 Emerger.cy Reports and Documentation 0 600 Series Re-Entry and Recovery A.2-601 Re-Entry 0 A.2-602 Deleted 11-19-81 A.2-603 Repair and Corrective Action 1 700 Series A.2-702 Response to an Emergency at Prairie Island 2 A.2-703 Response to Off-Site Situation Involving Radioactive Materials 0

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Prcccdur:2 A.2-406 Ravisicn 6

u. Page 1 of 17 Op. Com. Rev. Reg'd. Yes X No Q.A. Review Reg'd. Yes No x ALARA Review Req'd. Yes No X 0FF-SITE DOSE PROJECTION A.2-406 REVIEW AND APPROVAL Prepared by: (N4 e [ ALARA Review: Revision 0 Date 3/29/81 Reviewed by @ 9 M . M -

Q A. Review: Revision 0 Date 3/29/81 Operations Committee Final Review: Meeting Number :N Date 1/s3/83 Approved by: hM Date .2 - J - 2 3 Op. Com. Results Review: Not Required Mtg.# 949 Date 3/26/81 Pi!RPOSE The purpose of this procedure is to provide guidance and instructions for estimat-ing off-site doses resulting from an unplanned and/or abnormal airborne release of radioactive material. The main body of this procedure identifies criteria and guidelines for dose projection, such as how often it should be performed, and which dose projection method to use. The attachments to this procedure provide instructions for performing dose projection using the various methods. Alternate methods are provided to cover possible contingencies such as offscale monitors, inoperative instrumentation, etc.

CONDITIONS AND PREREQUISITES

k. An emergency condition has been declared at Monticello Nuclear Generating Plant as provided in the Emergency Plan.

B. An airborne release of radioactive materials in excess of environmentai technical specifications has occurred, is suspected to have occurred, or is imminent.

PRECAUTIONS

. Precautions are ver.ified in the text of the applicable attachment (s). ,

ORGANIZATION' Responsible- Radiological Emergency Coordinator In-Charge - Off-Site Dose Assessment and Chemistry Section Leader Assistance - Radiation Protection Specialist

• DISCUSSION A. General Applicability The region surrounding the plant site is divided into sixteen'22 1/2 degree sectors. The regions of interest extend from the effluent release points out to fifty miles in each sector. Contained within the regions of interest are special locations of interest. The special locations are the site WP/kk

. .Procedu'a'A.2-406 r

Revision-6 4 - Page 2 of 17 boundary and.the nearest receptor. .The site bourdary and the nearest recepto" locations differ for each sector.

B. Dose Projection Methods - ~-

This procedure provides 2 different methods for performing dose projections.

The method (s) used will depend on the availability of release and meteoro-logy information and the operability of computers. They appear as attach-ments to this procedure with Attachment 1 being the most preferred method and Attachment 2 being the least preferred.

1. Dose Projection By Computer (MODCOM)

The Monticello Off-Site Dose Computation System (MODCOM)-is a computerized atmospheric dispersion and radiological dose assessment software system.

The system is specific for the Monticello Nuclear Generating Plant and is structured in the form of an executive main program (MODCOM) and several subprograms. The software system is coded in a high level interpretive language called C.L.A.S.S.. The software runs on Digital Equipment Corporation computer systems which are located at the plant site.

Data required for input to the software system are: (1) meteorlogical infor-mation acquired from the meteorological tower (MET Tower) 5.E.D.A.R. computer system, and, (2) pla.'t stack and R.B. ventilation radioactive airborne effluents release rate information acquired from effluents monitors or dose rate readings converted to release rates. Wind direction data is used to determine the correct sector. Wind speed data is used to determine the plume dispersion parameters and maximum plume d,istance. Temperature difference values are used to determine the plume dispersion parameters.

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The plume is assumed to completely fill the sector in which it is located.

Release rate data is combined with dispersion data to yield dose rate data. The release rate data is input in the form of pCi/sec for noble gases, iodines, and particulates for the plant stack and Reactor Building ventilation release points. Whole body and thyroid dose factors as well as default nuclide concentration ratios are contained in system mass storage files for use in calculating dose rates. Data is accumulated into the program at 15, 30, or 60 minute intervals. The program computes dose rates at the site boundary, the nearest receptor, and out to the maximum plume distance which may' be anywhere fr:: cm :ile to 10 miles in one mile increments.

The dose rate values are reported in mrem / hour. The dose rate values are

! converted to an accumulated dose for that period. The dose values are i

then stored according to sector for the whole body and thyroid. During i the course of an accident, dose values are accumulated in several sectors, as the stack plume and R.B. vents plume are sometimes not in the same sector, and wind direction shifts will cause the accumulated doses to be i

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Procedure A.2-406 7 ,

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placed into several different sectors over.a ceriod of time. Accumulated l dose information may be extracted from storace and read out accoroing to I sector, or a specific distance from the plant for all sectors. Accumulated dose information is reported in " mrem".

l NOTE: Thyroid doses are calculated for the cnild thyroid.

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2. Oose Projection By Hand Calculation This method calculates the whole body and thyroid doses in the event.

that the computer systems are not available.

PROCEDURE STEP li When' directed by the Radiological Emergency Coordinator or the Emergency Director, perform off-site dose projections in accordance with Attachments 1 or 2. ' Attachment 1 is the most' preferred method and Attachment 2 is the least preferred method.

STEP 2: Continue doing dose projections until otherwise directed by the Radiological Emergency Coordinator or Emergency Director.

REFERENCES 1.~ Monticello Nuclear Generating Plant Emergency Plan

2. NURtiG-0654/ FEMA-RFP-1, " Criteria for Preparation and Evaluation of Radiological Emergency Response Plans for Preparedness in Support of Nuclear Power Plants" ATTACHMENTS l

1. Oose Projection by Computer (MODCOM)

2. 00se Projection by Hand Calculation

3. Example of Off-Site Dose Projection Worksheet

4. Obtaining Meteorological, Data From General Office Eclipse Computer System

5. Obtaining Meteorological Data From Weather Information Service

6. Program Example ,. ,

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ATTACHMENT 1 Page 1 of 4 DOSE PROJECTION BY COMPUTER (MODCOM)

PREREQUISITES

1. Proceed to the Body Count Room and place the computer system in the timesharing made (TYPE " Control-C", then RUN TSGO).

2. Proceed to the TSC and turn on the MET Towee Data Terminal and the Plant Computer CRTs, if this has not already been done. Release and meteorological data must be available for this method.

PROCEDURE STEP 1: Turn on the dose projection printer. Depress the return key and the terminal will print:

TSX Version CIO7E (Date-Time)

STEP 2: Type in "RUN CLASS" and press carriage return. The terminal will respond with:

CLASS V04.24-RT (DATE)

NOTE:, System operation may be verified by running program and using information from Attachment 6.

STEP 3: Type in ' RUN MODCOM" and press carriage return. The terminal will respond with:

INITIAL EVALUATION ? :

STEP 4: Respond as follows:

i l a. If this is the initial evaluation, type in "Y" and press carriage return. The terminal will respond with a list of the available options in the MODCOM program.end.ing with: .

PLEASE ENTER THE OPTION YOU DESIRE:

CAUTION: Do not respond with "Y" unless this is the first .

post-release execution of this procedure, as all stcred data will be lost,

b. If this is a subsequent evaluation, type in "N" and press carriage return. The terminal will respond with:

PLEASE ENTER THE OPTION YOU DESIRE:

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Procedura A.2-406 Revisien 6 Page 5 of 17 ATTACHMENT 1 (Cont'd. )

, Page 2 of 4 STEP 5: Select one of the following options:

OPTION DESCRIPTION 1 PERFORM TYPICAL DOSE RATE CALCULATION 2 LIST ACCUMULATED DOSES FOR ANY SECTOR (A-R) 3 SEARCH ALL SECTORS FOR HIGHEST DOSE AND REPORT DOSE DATA 4 PRINT ALL SECTOR DOSES (A-R) AT A SPECIFIED DISTANCE 5 UPDATE THE NUCLIDE DATA FILE 6 PERFORM DOSE PROJECTION (NO DATA STORAGE) 7 LIST ACCUMULATED POPULATION DOSES FOR ANY SECTOR (A-R) 8 LIST ACCUMULATED GROUND CONTAMINATION FOR ANY SECTOR (A-R) 9 STOP PROGRAM EXECUTION and proceed to the appropriate portion of this procedure.

NOTE: Option 1 should be used unless specific information available through one of the other options is sought.

STEP 6: PERFORM TYPICAL DOSE RATE CALCULATION;

a. Type in "1" and press carriage return. The terminal will respond by requesting that you enter current date information. Type in this information as it is requested. The terminal will then respond with:

PLEASE ENTER THE FOLLOWING METEOROLOGICAL DATA FROM THE SEDAR COMPUTER PRINTOUT:

NOTE: If the meteorological tower met data printer is unavail-

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able, refer to. Attachment 4 and enter starting and ending

' day and. time data 'such that 15 minute summary data is printed.

If the meteorological tower met system data is unavail-able, use backup tower data or refer to Attachment'5 and use the St. Cloud reporting station data for stabi-lity class, windspeed and wind direction data. Enter a Zero for the requested day and time information.

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> Pr;cedura A.2-406

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• Page 6 of 17 ATTACHMENT 1 (Cont'd.)

Page 3 of 4 PLEASE ENTER THE FOLLOWING EFFLUENTS RELEASE RATE DATA:

The terminal will request specific numerical information. Obtain this information from the Plant Computer CRTs and type it in as requested. If release rate data is not available, refer to Procedure A.2-405.

NOTE: During the early stages of an accident when Iodine release rates are not available, enter Iodine release rate values corresponding to about 2% of that release points noble gas release rate. This should be done until grab samples have been taken and analyzed. Grab samples should be taken and anlayzed as soon as possible.

b. The terminal will respond with a printout of off-site dose projections for the affected sector (s) from the Site Boundary to a distance of 10 miles. Communicate this information to the Radiological Emergency Coordinator.

c. The terminal will then print:

PLEASE ENT5R THE OPTION YOU DESIRE:-

di Type in the option number per STEP S or STEP 9.

NOTE: MET data is updated every 15 minutes and th'at should be the frequency with which Option 1 is run during an emergency condition with an airborne release. You should continue to update dose rate data every 15 minutes until the Radiological Emergency Coordinator directs other-wise.

STEP 7: LIST ACCUMULATED DOSES FOR ANY SECTOR

a. Type in "2" and press carriage return. The terminal will respond with:

l ENTER THE SECTOR (A-R) FOR WHICH YOU WANT THE ACCUMULATED l DOSES REPORTED.

SECTOR:

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Peccedure w.2-406 Revision 6 Page 7 of 17 ATTACHMENT 1 (Cont' d. )

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b. Type in the sector letter (A-R). The terminal will ask you if you wish to perform dose projection calculations. Answer Y or N.

then the terminal will respond with a printout of the accumulated i

doses for the affected sector from the Site Boundary to a distance of 10 miles. Communicate this information to the Radiological Emergency Coordinator,

c. The terminal will then print:

l PLEASE ENTER THE OPTION YOU DESIRE:

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d. Type in the option number per STEP 5 or STEP 9.

STEP 8: SEARCH ALL SECTORS FOR HIGHEST DOSE AND REPORT DOSE DATA

a. Type in "3" and press carriage return. The terminal will resoond with a printout of the accumulated dose values to the highest sector (s) as well as a list of the sectors where accumulated whole body or thyroid doses exceeded pre programmed limits.

Communicate this information to the Radiological Emergency Coordinator,

b. The terminal will then print:

PLEASEENTERTHEdPTIONYOUDESIRE: .

c. Type in the option numbers per STEP 5 or STEP 9.

STEP 9: Should it be desirable to cease dose projection activities for extended periods of time (with the concurrence of the Radiological Emergency Coordinator), when the terminal prints:

PLEASE ENTER THE OPTION YOU DESIRE:

Type in "9" and press carriage return. You may subsequently re enter the program by typing in "RUN M00CC.1"..

STEP 10 Upon receiving instructions from the Radiological Emergency Coordirator to secure from dose projection activities, turn off all equipment and ensure that all data is appropriately filed.

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Proc:du6a A.2-406' Revision.6 '

Page 8 of 17 ATTACHMENT 2 Page 1 of 4 DOSE PROJECTION BY HAND CALCULATION EQUIPMENT REQUIRED

1. Calculator (with scientific notation capability)

2. Supply of 0FF-SITE DOSE RATE PROJECTION WORKSHEET Forms (TSC),

Form 5790-406-4 (Attachment 4)

PROCEDURE STEP 1: In the INPUT DATA section of the worksheet, enter the date and time for which this projection will be made.

STEP 2: Enter the TIME AFTER REACTOR TRIP value. This is the elapsed time from the reactor trip to the time recorded in STEP 1. If there has not been a reactor trip, enter ZERO.

STEP 3: Determine the necessary meteorological parameters and record as indicated on the worksheet. This data should be taken from the meteorological tower printer. If the printer is unavailable, refer to Attachment 4.

NOTE: If meteorological tower met data printer is unavailable, refer to Attachment 4 and enter starting and ending day and time data such that 15' minute summary data is printed.

If the meteorological tower met system data is unavailable, refer to Attachment 5 dnd use the St. Cloud reporting station data for stability class, windspeed and wind direction data.

Enter a Zero for the requested day and time information and enter requested data.

a. RB Vent Stability Class - Divide the value for DT1 by 100, paying attention to whether the value is positive or negative. Use the result to enter Table I. Record the class design: tion.

b. Stack Stability Class - Divide the value for DT2 by 100, paying attention to whether the value'is positive or negative. Use the result to enter Table I. Record the class designation.

c. RB Vent Windspeed - Record the windspeed at the 33 feet level (use 1 mph when indication is zero). .

d. Stack Windspeed - Record the windspeed at the 330 feet level (use 1 mph when indication is zero).

e. Stack Wind firection - Record the wind direction at the 330 feet level. (If value is greater than 360, subtract 360 before recording.)

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. Procedura A.2-406 Revision 6 Page 9 of 17 ATTACHMENT 2 (Cont'd.)

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Page 2 of 4 TABLE I Stability Class P.B Vent (DTl/100) Stack (OT2/100)~

A Less ttr.a -0.62 Less than -1.71 B -0.62 to -0.56 -1.71 to -1.53 C -0.55 to -0.49 -1.52 to -1.35 0 -0.48 to -0.16 -1.34 to -0.45 E -0.15 to +0.49 -0.44 to +1.35 F +0.50 to +1.31 +1.36 to +3.60 G** Greater than +1.31 Greater than +3.60

• • Stability Class G is not to be used. (Ref: Letter of 3/9/81 from certified consulting meteorologist to Bert Clark.) Use Class F when G is indicated.

STEP 4: Determine and record the SECTOR designation (A-R). Use the 330 feet wind direction and Table II to find the letter designation for the area directly downwind from the plant.

NOTE: If the wind speed indicates zero, use Sector designation "L" (most critical sector based on nearest receptor).

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TABLE II Wind Direction Sector 168.75 to 191.25 A '

191.25 to 213.75 8 213.75 to 236.25 C 236.25 to 258.75 D 258.75 to 281.25 E i 281.25 to 303.75 F 303.75 to 326.25 G

] 326.25 to 348.75 H 348.75 to 11.25 J 11.25 to 33.75 K 33.75 to 56.25 - +- '

l 56.25 to 78.75 M i'

78.75 to 101.25 N 101.25 to 123.75 P l 123.75 to 146.25 Q . j

146.25 to 168.75 R STEP 5

From Table III select and record the XU/Q values as required.

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Proccdure A.2-406 Revision.6 * ,

Page 10 of 17 ATTACHMENT 2 (Cont'd.)

Page 3 of 4 TABLE III l R.B. VENTS XD/Q l Stab. Class l l

A-B-C D E F-G l Distance SB 6.4E-S 9.4E-S 1.2E-4 2.1E-4 l NR 6.4E-S 9.4E-S 1.2E-4 2.1E-4 l 1 1.9E-S 4.3E-S 5.8E-S 1.9E-4 2 5.7E-6 1.7E-S 2.6E-S 1.0E-4 3 2.9E-f 1.0E-S 1.8E-S 7.4E-S 4 1.9E-6 7.2E-6 1.3E-S 5.9E-S 5 1.3E-6 S.1E-6 9.9E-6 4.8E-S 10 4.6E-7 2.1E-6 4.6E-6 2.6E-S

, STACK XU/Q Stab. Class A-B-C D E F-G Distance SB 2.74-4 4.03E-7 6.17E-10 2.54E-18 NR 2.74-4 4.03E-7 6.17E-10 2.SE-18 1 1.2E-S 6.4E-6 1.6E-6 1.1E-9 2 S.0E-6 9.0E-6 7.0E-6 4.4E-7 3 2.7E-6 6.7E-6 6.4E-6 1.1E-6 4 1.8E-6 S.4E-6 6.2E-6 1.7E-6 5 1.3E-6 4.2E-6 S.4E-6 2.1E-6 10 _4.SE-7 2.0E-6 3.6E-6 3.2E-6 STEP 6: From Table IV, determine and record the Noble Gases Factor and the lodines Factor as appropriate for the elapsed time value previously recorded.

TABLE IV Elapsed Time (Hours) Noble Gases Iodines i

From To Facter Factor 1

0.00 0.49 6.49E-01 254 0.50 0.99 5.48E-01 282 1.00 1.99 4.06E-01 329 2.00 3.99 3.43E-01 398 .

4.00 7.99 2.93E-01 485 l 8.00 15.99 1.65E-01 607 16.00 23.99 8.7CE-02 705 24.00 47.99 6.10E-02 923 48.00 95.99 3.90E-02 1117 96.00 167.99 3.30E-02 1270 168.00 335.99 3.30E-02 1280

! 336.00 719.99 3.20E-02 1280 720.00 1439.99 2.60E-02 1280

! 1440.00 Beyond 3.60E-03 1280 l

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, Proceduro A.2-406 Revision 6 Page 11 of 17 ATTACHMENT 2 (Cont'd. ) -

1 Page 4 of 4 STEP 7: Record the release rates (pCi/sec)' for the gas and iodine portions of the stack and vent effluents. The gas portion release rates may be obtained directly from effluent monitor readings. If direct monitor l readings are unavailable, obtain release rates from procedure A.2-405 (Release Rate Determination). The iodine portions will be determined by Rsdiation Protection Group personnel-through actual samples. If sample analysis data is not available, use a value of 2". of the noble gas release rate values.

i STEP 8: Using the values recorded in the INPUT DATA section, complete calcula-

tions for the location of interest as required.

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- Procedure A.2-dO6 Devision 6 ..

Page112 of 17 ATTACHMENT 3 Form 5790-406-4 Revision 1, 05/10/82 Page 1 of 1 Example of 0FF-SITE DOSE RATE PROJECTION WORKSHEET (For use with Procedure A.2-406, Attacnment 3)

INPUT DATA Time Date Time After Reactor Trip hours Stability Class: RB Vent Stack Windspeed: RB Vent mpn (c) Stack mph (c)

Wind Direction: Sector Location (S.B., N.R., or distance):

XU/Q Value for Location:

Noble Gas Release Rate pCi/sec: (a) i Noble Gas Factor: (b)

Iodines Release Rate pCi/sec: (d)

Iodines Factor: _(e)

WHOLE BODY DOSE RATE Multiply (a) x (b) x XU/Q x (C) x '.447: mrem /hr THYROID DOSE RATE Multiply (d) x (e) x XU/Q x (C) x .447: committed mrem / hour of exposure.

4 REVIEW AND APPROVAL Completed by: / Date Reviewed by: Date Radiological Emergency Coordinator .

NOTE: After this checklist is completed and is not required for immediate use, it shall be placed in the appropriate container provided for Emergency Records.

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Procedure A.2'406

, R; vision 6 Page 13 of 17 ATTACHMENT 4 N

Obtaining Meteorological Data From General Office Eclipse Comouter System (READ ALL INST. RUCTIONS CAREFULLY BEFORE STARTING) [

STEP 1 Turn terminal on (back right of terminal).

Set terminal to MED Speed.

Set terminal to full duplex, modem set to full duplex.

Set all caps key to ON.

Depress on-line button.

STEP 2 Di~aIELu ED (if no answer u'*

When tone is heard, place phone"ELETEE-in terminal coupler with the cord to the rear. Green light on coupler in.5-15 seconds.

STEP 3 You will see the following:

• • • • NORTHERN STATES POWER / TYPE NEW-LINE TO BEGIN LOGGING ON ****

STEP 4 Type: RETURN STEP _5 You will then see the following:

USERNAME:

s-STEP 6 Type: MONTI.SEDAR STEP 7 See---PASSWORD:

STEP 8 Type: MONTI.SEDAR (note password will not print)

STEP 9 System will display the current time in JULIAN form.

STEP 10 System will ask for beginning and ending time in JULIAN form, enter data with NO SPACES. ' -

NOTE: Report is formatted by your entry.

(82DDDHHMM) ------- will give 15 minute samples .

(82DDDHH) ------- will give hourly summaries  ;

(820D0) ------- will give daily summaries *

(Data is only available for the current day starting at 0200.) i STEP 11 The report will take several minutes to print out, there will be several j bits of meaningless information printed after which the report will be I printed.

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. Page 14 of 17 ATTACHMENT 5 PROCEDURE FOR USE OF THE WEATHER INFORMATION SERVICE  !

EQUIPMENT: Western Union Terminal, Telephone and Accoustic Coupler

1. Turn terminal on (back right of terminal).

Set terminal to MED Speed.

Set terminal to full duplex, modem set to full duplex.

Set all caps key to ON.

Depress on-line button.

2. Dial , DELETED (

When tone is heard, place phone in terminal coupler with the cord to the rear. Green light on coupler in 5-15 seconds.

NOTE: If no green light, hang-up and re-do STEP 2.

OPERATOR ACTION PRINTER OUTPUT

3. Press return twice. TELENET TERMINAL =

4. Type "D1" l

Press return 0

5. Type "C 617133" Press return. 617 1338 CONNECTED

6. Press return. PLEASE LOG IN

7. Type "LOGIN NSM".

Press return. PASSWORD

8. Type " POWER".

Press return. LOGGED INTO WEATHER SERVICES -------

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+ Indicates computer awaiting instructions.- . . -

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9. Type"MONT".

Press return.

10. When printout is completed type "LOGOUT".

Press return.

When computer prints out that it is disconnected immediately hang-up phone.

NOTE: Use this service only as needed.

(s.

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Procedurs A.2-406

. Revision 6

. Page 15 of 17 ATTACHMENT 6 CLASS V04.24.24-RT 16-NOV-77 SYSTEM VERIFICATION EXAMPLE

• RUN MODCOM INITIAL EVALUATION ? " YES ARE YOU SURE ? (IF SO ANSWER YES) : YES FREQUENCY AT WHICH YOU WISH TO PERFORM COMPUTATIONS (15,30,0R 60 MINUTES) : 15 THE AVAILABLE OPTIONS ARE AS FOLLOWS:

\

OPTION DESCRIPTION 1 PERFORM TYPICAL DOSE RATE CALCULATION 2 LIST ACCUMULATED DOSES FOR ANY SECTOR (A-R) 3 SEARCH ALL SECTORS FOR HIGHEST DOSE AND REPORT DOSE DATA 4 PRINT ALL SECTOR DOSES (A-R) AT A SPECIFIED CISTANCE 5 UPDATE THE NUCLIDE DATA FILE 6 PERFORM DOSE PROJECTION (N0 DATA STORAGE)

. 7 LIST ACCUMULATED POPULATION DOSES FOR ANY SECTOR (A-R) 8 LIST ACCUMULATED GROUND CONTAMINATION FOR ANY SECTOR (A-R) 9 STOP PROGRAM EXECUTION j PLEASE ENTER THE OPTION YOU DESIRE: 6 .

THIS IS EVALUATION # 1 PLEASE ENTER THE FOLLOWING :

CURRENT YEAR 1982 CURRENT MONTH OF 7 EAR (1-12) : 07

CURRENT DAY OF MONTH (1-31)

28 PLEASE ENTER THE FOLLOWING METEOROLOGICAL DATA FROM SEDAR COMPUTER PRINT 0UT :

DAY AND TIME ( 7 DIGIT NUMBER ) e 2090830 33' WINDSPEED  : 8 330' WINDSPEED  : 5 33' WIND DIRECTION  : 337 330' WIND DIRECTION  : 6 .

2 DT1 (VALUE MAY BE NEGATIVE)  : -43 DT2 (VALUE MAY BE NEGATIVE)  : -76 PLEASE ENTER THE FOLLOWING EFFLUENTS RELEASE RATE DATA :

STACK GAS pCI/SEC.  : 1.0E7 STACK 10 DINES pCI/SEC. -

2.0E5 '

STACK PARTICULATES pCI/SEC.  : 1.0E4 i

R.B.V. GAS pCI/SEC.  : 1.0E7

' R.E V. 10 DINES pCI/SEC. . 2.0ES R.B. PARTICULATES pCi/SEC.  : 1.0E4 WP/kk

. ..' Proceduce A.2-406 -

- Revision 6'

. Page16'ofli.

ATTACHMENT 6 (Cont'd.)

MONTICELLO NUCLEAR GENERATING PLANT OFFSITE DOSE RATE COMPUTATIONS SPECIAL CALCULATION :

7-28-82 0830 STACK SECTOR = J S. VENTS SECTOR = H SSE STACK WINDSPEED = 5 MPH, VENTS WINDSPEED = 8 MPH MAX PLUME DISTANCE = 10 MILES.

STACK STABILITY CLASS = 0. VENTS STABILITY CLASS = 0 NO STACK FUMIGATION THE CALCULATED WHOLE BODY DOSE RATE VALUES ARE IN MREM / HOUR.

THE CALCULATED THYROID DOSE RATE VALUES ARE COMMITTED MREM PER HOUR OF EXPOSURE.

STACK STACK STACK EST'D VENTS VENTS W. BOD. W.800. THYROID PLUME W.800. THYROID MREM /HR MREM /HR MREM /HR ARRIV MREM /HR MREM /HR FINITE SEMINF S.B. 9.7 5.33E-04 4.92E-03 8:32 4.51E+02 3.64E+03 N. R. 7.3 0.2 2.4 8:36 96. 1.05E+03 1 MI 5.0 9.1 1.46E+02 8:37 56. 7.52E+02 2 MI 2.8 8.5 1.78E+02 8:45 16. 2.66E+02 3 MI 1.9 5.9 1.54E+02 8:52 7.5 1.45E+02 4 MI 1. 2 3.7 1.18E+02 9: 0 4.2 95.

5 MI 0.7 2.3 90. 9: 7 2.7 68.

6 MI 0.5 1. 4 72. 9:15 1. 8 52.

7 MI 0.3 0.9 60. 9:22 1.2 42.

8 MI 0. 2 0.5 50. 9:30 0.8 34.

9 MI 0.1 0.3 43. 9:37 0.6 29.

10MI 9.90E-02 0.2 37. 9:45 0.4 25.

STACK STACK VENTS VENTS PLUME X/Q PLUME X/Q WIDTH SEC/M3 WIDTH SEC/M3 METERS METERS S.8 1.72E+02 1.10E-10 -

2 97E+02 8 E-05 N. R. 2.51E+02 5.33E-08 4.05E+02 2.34E-05

'! MI 4.95E+02 3.25E-06 4.95E+02 1.68E-05 2 MI 9.26E+02 3.96E-06 9.26E+02 5.92E-06 3 MI 1.34E+03 3.43E-06 1.34E+03 3.24E-06 .

4 MI 1.73E+03 2.64E-06 1.73E+03 2.12E-06 5 MI 2.12E+03 2.01E-06 2.12E+03 1.52E-06 6 MI 2.50E+03 1.60E-06 2.50E+03 1.17E-06 7 MI 2.87E-03 1.33E-06 2.87E+03 9.30E-07 8 MI 3.24E+03 1.11E-06 3.24E+03 7.65E-07 9 MI 3.60E+03 9.48E-07 3.60E+03 6.45E-07 10MI 3.96E+03 8.21E-07 3.96E+03 5.53E-07 WP/kk

Proctdure A.2-406 Revision 6 Page 17 of 17 ATTACHMEliT 6 (Cont'd. ) .

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==anaman======******==amanxxana========*=*====*n*a======**********xanxxana**xa NOTE TO SHIFT SUPERVISOR OR R.E.C.

WHOLE BODY PROTECTIVE ACTION GUIDELINE = 1000 MREM.

THY,ROID PROTECTION ACTION GUIDELINE = 5000 MREM. .

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SECTOR J S SECTOR H SSE DISTANCE HOURS EST'D HOURS TO PLUME TO REACH ARRIVAL REACH A PAG TIME A PAG S.B. 1.03E+02 8:32 1. 4 N.R. 1.37E+02 8:36 4.8 1 MI 34. 8:37 6.7 2 MI 28. 8:45 19.

3 MI 33 8:52 34.

4 MI 42. 9: 0 53.

5 MI 55. 9: 7 73.

6 MI 70. 9:15 96.

7 MI 84. 9:22 1.20E+02 8 MI 1.00E+02 9:30 1.46E+02 9 MIN 1.18E+02 9:37 1.73E+02

10 MIN 1.36E+02 9

45 2.02E+02 l

INITIATE EMERGENCY PROCEDURE A.2-105, ATTACH 1'ENT 2.

, CONSIDER PROTECTIVE ACTION FOR SECTOR H SSE i

PLEASE ENTER THE OPTION YOU DESIRE : 9.

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. Procedure A.2-422 Revision i Page 1 of 5 i Op. Ccm. Rev. ?aa'd. Yes , ll0 I Q.A. Review Reo'd. (es '!o ..

ALARA Review Reg' d. Yes X flo _ 1 STACK IODINE / PARTICULATE SAMPLIflG ANC ANALYSIS j Proceaure A.2-422 Prepared by: t hw. ALARA Review: ChilkN-42--- Date //2/,[P 3 Reviewed by: C \ ), _ Q.A. Review: D. R. flordell Date 07/28/82 Operations Committee fini Review: Meetingflumneq: // '7 9/ Date//27/83 Approved by: , , j',i c'i ,c w ,!r / W Date //J 7If 9.__

Op. Com. Results Review: Not Recu' ired Mtgi# 1100 Date 07/29/82 PURPOSE The purpose of this procedure is to provide special instructions, precautions, and guidance for collection, handling and analysis of stack iodine / particulate samples during and following an emergency at Monticello Nuclear G<enerating Plant.

CONDITIONS AND PRERE0VISITES Actual or potential radiological conditions are such that special methods and/or precactions are necessary in order to collect and analyze samples under conditions whf;.n may present a much greater than normal radiation hazard to individuals performing the sampling and analyses. Unless directed otherwise, this procedure should be used in lieu of routine sampling and analysis procedures whenever an Alert or higher emergency c,lassification is declared.

ORGANIZATION AND RESPONSIBILITIES Emergency Director - Overall responsibility REC /CSL - Responsible for assigning sample priority and frequency and results review.

Chemistry Technici .ns - Responsible for sample collection, analysis and results reporting. ,. ,

PRECAUTIONS A. Exposures of sampling and analysis personnel shall be in accordance with A.2-401, " Emergency Exposure Control". '

B. Exposures to all personnel due to sampling and analysis operations should be maintained as low as is reasonably achieveable. Techniques such as temporary shielding, remote handling and sample dilution prior to analysis should be considered to reduce exposure to personnel.

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Procedure 6 2-4'22 Revision 1 .

Page 2 o'f 5 PRECAUTIONS (Cont'd.)

C. When actual or potential radiation levels so warrant, high range portable survey instruments, and self-reading dosimeters shall be provided to sampling and analysis personnel to permit rapid assessment of high exposure rates and accumulated personnel exposure. Alarming dosimeters should also be considered.

D. Appropriate extremity dos'imeters should be provi ed and worn when handling samples which themselves represent high level radiation sources.

REMARKS

1. Prior to sampling, notify the Control Room and advise Shift Supervisor of your intentions.

2. Two-man teams should be used to obtain a post-accident sample when possible.

EQUIPMENT REOUIRED Radector III or equivalent Pair of tongs (or other remote handling device as appropriate)

Filter set with silver zeolite filters loaded if one set already removed PROCEDURE NOTE 1 Obtain key #9 from R.P. Coord, to acces.s stack. .

STEP 1 Verify that the Hot Lab South hood exhaust is functioning- (use small piece of paper to check air flow), if not contact Radiological Emergency Director and continue.

' STEP 2 Go to the control room and note process flow (monitor item #029), and sample flow (monitor items #028 or #033) on the stack wide range gas monitor. Set the appropriato timer on the stack wide range gas monitor according to the following chart.

Activity Timer Setting (1E4 pCi/sec 5 minutes

>1E4 pCi/sec (1E5 pCi/sec 90 seconds

>1E5 pCi/sec (1E6 pCi/sec 30 seconds

>1E6 pCi/sec 10 seconds .

STEP 3 Don all protective clothing, equipment and dosimetry devices as required by the OSC Coordinator.

STEP 4 Proceed to the stack sample area as directed by the Emergency Director or his designee while observing Health Physics precautions.

STEP 5 Close the four valves on the Grab Sample Filter apparatus. Disconnect and remove the Grab Sample filter holder. Replace previous set if already removed.

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Procedure A.2-422 o . RGvision 1 Page 3 af 5 PROCEDURE (Cont'd.1 CAUTION: During filter holder cnangeout monitor radiation levels to ensure levels are below 200 mR/ hour.

If levels are above 200 mR/hr, use remote handling device to minimize exposure.

STEP 6 Proceed to the hot lab and place the filter set into the south hood.

STEP 7 Connect the sample filter holder to the purge air fitting in south hood of hot lab. Open fully the plant air supply valve in the hood and purge the filter holder set into the hood for about 2-3 .ainutes.

If instrument air is not available, use compressed air from the compressed air cylinder located in the Hot Lab.

STEP 8 Measure the contact dose rate from the iodine filter. If { 10 mR/hr proceed to STEP 10.

STEP 9 If 2 10 mR/hr at contact then measure the dose rate at 1 foot. Calculate the pCi/cc as I-131 using the equation below. Proceed to STEP 11.

I-131 pCi/cc = 420 pCi/mR/hr x dose rate (mR/hr) + sample vol (cc)

STEP 10 Place the iodine filter into a labeled poly bag and count on the Ge(Li) System for { 1000 seconds. When the count is complete analyze the resulting spectrum.

STEP 11 Calculate the iodine release rate via the stack.

STEP 12 Place the iodine filter into the shielded storage area.

STEP 13 Place the particulate filter in a labeled petri dish.

STEP 14 Measure the contact dose rate of the filter. If ( 10 mR/hr, proceed

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to STEP 16.

STEP 15 If the measured dose rate is > 10 mR/hr measure the dose rate of tha filter at one foot. CalcFiate tb? particu!at- ictivity in pCi/cc using the equation below. Proceed to STEP 17.

Particulate pCi/cc = 610 pCi/mR/hr x dose rate (mR/hr) + sample vol. (cc)

STEP 16 Place the particulate filter in a labeled petri dish and count on the Ge(Li) System for 1000 seconds. When the count is complete analyze the resulting { spectrum.

STEP 17 Calculate the release rate for particulates from the stack, s

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Pr:cedure A.2-422 -

'R:visicn r , .

Page 4 of 5 PROCEDURE (Cont'd.)

STEP 18 Place the sample into the shielded storage area.

STEP 19 Provide the release rate information to the Radiological Emergency Coordinator and submit the checklist to the Chemistry Section Leader or Radiological Emergency Coordinator.

STEP 20 Install fresh silver zeolite cartridge and particulate filter into filter holder.

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. Procedura A.2-422 R vision 1 Page 5 of 5 Form 5790-422-1 Revision 1, 1/27/83 Page 1 of 1 Example of STACK IODINE / PARTICULATE ANALYSIS CHECKLIST Initial

1. Hot lab hood readied.

2. Process Flow CFM, Sample Flow CFM

3. Grab Sample Timer set min /sec.

Time Set

4. Protective clothing and dosimetry.

5. Sample to hot lab and purged.

6. If iodine filter { 10 mR/hr, collect spectrum.

If > 10 mR/hr, calculated iodine activity = pCi/cc

7. Analyze spectrum, calculate release rate.

(Iodine release rate = pCi/sec.)

• 8. If particulate filter i 10 mr/hr; collect spectrum.

If > 10 mR/hr then calculated particulate activity

= pCi/cc

9. Analyze spectrum, calculate release rate. (Particulate release rate = pCi/sec)

10. Provided results for Chemistry Section Leader or Radiological Emergency Coordinator.

Performed by: Date Reviewed by: CSL or REC Date NOTE: After this checklist is completed and is not required for immediate use, it shall be placed in the appropriate container provided for Emergency Records.

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Procedure A.2-423 e

. R: vision 1 Page 1 of 5 Op. Com. Rev. Req'd. Yes X No Q.A. Review Reg'd. Yes No "T ALARA Review Reg'd. Yes x No Z REACTOR BUILDING VENTS IODINE / PARTICULATE SAMPLING & ANALYSIS Procedure A.2-423 Prepared by: be & ALARA Review: OWY Date /YZI,!)3 Reviewed by: @ d b . m Q.A. Review: D. R. Nordell Date 7/23/82, Operations Commit F]nalReview: MepingEjmbe$: //7 ? Date /M7/M Approved by: 'If/AEEkst> //-t W t% Date/hWSL Op.Com.ResultsReview: Not Req #uired TMg.# 1100 Date 7/2'9/82 PURPOSE The purpose of this procedure is to provide special instructions, precautions, and guidance for collection, handling and analysis of reactor building vent iodine / particulate samples during and following an emergency at f1onticello Nuclear Generating Plant.

CONDITIONS AND PREREQUISITES 4

Actual or potential radiological conditions are such that special methods and/or precautions are necessary in or&c to collect and analyze samples under conditions which may present a much greater than normal radiation hazard to individuals performing the sampling and analyses. Unless directed otherwise, this procedure should be used in lieu of routine sampling and analysis procedures whenever an Alert or higher emergency classification i~s declhred.

ORGANIZATION AND RESPONSIBILITIES Emergency Director - Overall responsibility REC /CSL - Responsible for assigning sample priority and frequency and results review.

Chemistry Technicians - Responsible for sample collection, analysis and results reporting ' '

PRECAUTIONS A. Exposures of sampling and analysis personnel shall be in accordance with A.2-401, " Emergency Exposure Control".

B. Exposures to all personnel due to sampling and analysis operations should be maintained as low as is reasonably achieveable. Techniques such as temporary shielding, remote handling and sample dilution prior to analysis should be considered to reduce exposure to personnel.

%4 WP/kk

. _ _ -..,m. - - - - - _ _ -

Proc dure 4 2-523 Revision 1 .

Page 2 o'f 5 PRECAUTIONS (Cont'd.)

C. When actual or potential radiation levels so warrant, high range portable survey instruments, and self-reading dosimeters shall be provided to sampling and analysis personnel to permit rapid assessment of high exposure rates and accumulated personnel exposure. Alarming dosimeters should also be considered.

D. Appropriate extremity dosimeters snould be provided and worn when handling samples which themselves represent high level radiation sources. -

E. Plenum effluent is sampled on the 1001' level of the reactor building. Two matters to be considered are the route to the sample point and how to handle the sample filters. The problem of getting to 1001' reduces to a problem of getting to the 985' level, above which radiation levels are tolerable. It seems that the best way to approach the R8 Vent WRGM is to enter secondary containment via the M.G. Set Room on 962'. From the air lock on 962', it is important to move as quickly as possible to the stairs in the northeast corner and to climb as fast as possible to the next level, 985'. Continue up the northeast stairs to the 1001' level and from there on the radiation levels permit a slower pace. The filters could be a problem if removed from the filter holder and handled directly. We do not expect the whole body dose rate to be significant compared to levels encountered enroute to and from the sample stations. Precautions should be taken, howe.er, after exiting contain-ment. , l

, REMARKS

1. Prior to sampling, notify the Control Room and advise Shift Supervisor of your intentions.

2. Two-man teams should be used to obtain a post-accident sample when possible.

EQUIPMENT REQUIRED Radector III or equivalent Pair of tongs (or other remote handling device as appropriate)

Filter set with silver zeolite filters loaded if one set already removed PROCEDURE NOTE 1 Obtain Vital Key #211 frcm Shift Supervisor to access erergency sample route. .

STEP 1 Verify that the Hot Lab South hood exhaust is functioning (use small piece of paper to check air flow), if not contact Radiological Emergency Director and continue.

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. Proccdura A.2-423 R: vision 1 Page 3 of 5 PROCEDURE (Cont'd.)

STEP 2 Go to the Control Room and verify that the Reactor Building Wide Range Gas Monitors are selected to Operating Vent Exhaust fans, then note process flow on both channels (monitor item #029) and sample flow on channel being sampled (monitor item #028 or #033) on the reactor build-ing vent wide range gas monitor. Set the appropriate timer on the reactor building vent wide range gas monitor according to the follow-ing chart.

Activity Timer Setting

< 1E4 pCi/sec 5 minutes

> IE4 pCi/sec < 1ES pCi/sec 90 seconds

> 1ES pCi/sec < 1E6 pCi/sec 30 seconds

> IE6 pCi/sec 10 seconds STEP 3 Don all protective clothing, equipment dosimetry devices as required by the OSC Coordinator.

STEP 4 Proceed to the vent sample area as directed by the Emergency Director or his designee while observing Health Physics precautions.

STEP 5 Close the four valves on the Grab Sample Filter apparatus. Disconnect and remove the Grab Sample filter holder. Replace previous set if already removed.

CAUTION: During filter holder changeout monitor radiation levels to ensure levels are below 200 mR/ hour.

If levels are above 200 mR/hr, use remote handling device to minimize exposure.

STEP 6 Proceed to the hot lab and place the filter set into the south hood.

STEP 7 Connect the sample filter holder to the purge air fitting in south hood of hot lab. Open fully the plant air supply valve in the hood and purge the filter holder set into the hood for about 2-3 minutes.

If instrument air is not available, use comoressed air from the compressed air cylinder located in the hot lab.

STEP 8 Measure the contact dose rate from the iodine filter. If < 10 mR/hr

~

proceed to STEP 10. ,

STEP 9 If > 10 mR/hr at contact then measure the dose rute at 1 foot. Using the equation below, calculate the pCi/cc as I-131. Proceed to STEP 11.

I-131 pCi/cc = 420 pCi/mR/hr x dose rate (mR/hr) + sample vol. (cc)

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Procedure.A.2-423 Revision,1 -

Page 4 of 5 PROCEDURE (Cont'd. )

STEP 10 Place the iodine filter into a labeled poly bag and count on the GeLi System for 1 1000 seconds. When the count is complete, analyze the resulting spectrum.

STEP 11 Calculate the iodine release rate via the reactor building vents.

STEP 12 Place the iodine filter into the shielded storage area.

STEP 13 Place the particulate filter in a labeled petri dish.

STEP 14 Measure the contact dose rate of the filter. If 1 10 mR/hr proceed to STEP 16.

STEP 15 If the measured dose rate is > 10 mR/hr, measure the dose rate of the filter at one foot. Using the equation below calculate the particulate pCi/cc. Proceed to STEP 17.

Particulates pCi/cc = 620 pCi/mR/hr x dose rate (mR/hr) + sample vol. (cc)

STEP 16 Place the particulate filter in a labeled petri dish and count on the GeLi System for 1 1000 seconds. When the count is complete, analyze the spectrum.

STEP 17 Calculate the release rate for particulates from the reactor bu'.lding vent.

, l STEP 18 Place the sample into the shielded container in the sample storage area.

STEP 19 Provide the release rate information to the Radiological Emergency Coordinator and submit the checklist to the Chemistry Section Leader or Radiological Emergency Coordinator.

STEP 20 Install fresh silver zeolite cartridge and particulate filter into filter holder.

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Proceduro A.2-423 Revision 1 Page 5 of 5 4

Form 5790-423-1 Revision 1, 01/21/83 Page 1 of 1 Example of REACTOR BUILOING VENTS IODINE / PARTICULATE ANALYSIS CHECKLIST Initial

1. Hot lab hood readied.

. +

2. Process flow Channel A CFM, Channel B CFM Sample Flow CFM, Total process flow CFM 4

3. Grab sample timer. set min /sec 1

Time set s

4. Protective clothing and dosimetry.

5. Sample to hot lab and purged.

6. If iodine filter 1 10 mR/hr; collect spectrum.

3 If > 10 mR/hr then calculated iodine activity i = pCi/cc j 7. Analyze spectrum, calculate release rate. i j (Iodine release rate pCi/sec)

8. If particulate filter i 10 mR/hr; collect spectrum.

If > 10 mR/hr, then calculated particulate activity '

= pCi/cc

, 9. Analyze spectrum, calculate release rate.

(Particulate release rate = pCi/sec)

10. Provided results to Radiological Emergency Coordinator or j

4 Chemistry Section Leader. -

• Performed by: Date Reviewed by: CSL or REC Date J

NOTE: After this checklist is completed and is not required for immediate use, it shall be placed in the appropriate container provided for Emergency Records.

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