Text

Revision 8 to EPIP-09, Off-Site Dose Calculations.
	ML020510580
Person / Time
Site:	Saint Lucie
Issue date:	02/18/2002
From:	Jernigan D; Florida Power & Light Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation, Office of Nuclear Security and Incident Response
References
	L-2002-028
	Download: ML020510580 (86)
	v • d • e

0 FPL Florida Power & Light Company, 6501 South Ocean Drive, Jensen Beach, FL 34957 February 18, 2002 L-2002-028 10 CFR 50 Appendix E U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Re: St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 Emergency Plan Implementing Procedure In accordance with 10 CFR 50 Appendix E, enclosed is a copy of the revised procedure that implements the Emergency Plan as listed below.

Number Title Revision Implementation Date EPIP-09 Off-Site Dose Calculations 6 January 28, 2002 EPIP-09 Revision 6 has been completely rewritten. The instructions and procedure layout were reformatted to accommodate users with different backgrounds. In addition, human factors improvements and editorial/administrative changes were incorporated. Please contact us ifthere are any questions regarding this procedure.

/

Donald E. Jernigan Vice President St. Lucie Plant DEJ/tlt Enclosure 10 an FPL Group company

Procedure No.

ST. LUCIE PLANT EPIP-09 EMERGENCY PLAN Current Revision No.

IMPLEMENTING PROCEDURE 6 F PL SAFETY RELATED Effective Date 01/28/02

Title:

OFF-SITE DOSE CALCULATIONS Responsible Department: EMERGENCY PREPAREDNESS REVISION

SUMMARY

Revision 6 - THIS PROCEDURE HAS BEEN COMPLETELY REWRITTEN. Reformatted instructions / procedure layout to better accommodate user's with different backgrounds, added data interpretation information for both units to assist persons with less background in release pathways and effluent monitors, made human factors improvements, and made editorial / administrative changes. (M. Cooper, 11/15/01)

Revision 5 - Clarified Delta T determination. (J. R. Walker, 06/18/01)

Revision 4 - Revised fan flow rates to accommodate for maintenance acceptance criteria and included minor correction to a number used in an example. (Steve Knapp, 02/02/01)

Revision 3 - Made human factors improvements; identified applicable unit, relocated note and caution messages, changed table, revised instructions for changing date and time on Class A computer, and changed responsible department from Training to Emergency Preparedness.

(Steve Knapp, 09/11/00)

Revision 2 - Revised procedure number to address QA comment from periodic review (Appendix J). (J. R. Walker, 03/18/99)

W a jf PROCEDURE PROODUCTION I S OPS Approved By Approval Date Revision FRG Review Date J. Scarola 12/15/97 DATE 0 12/15/97 Plant General Manager DOCT PROCEDURE I DOCN Approved By Approval Date EPIP-09 Revision FRG Review Date R. G. West 11/15/01 SYS 6 11/15/01 Plant General Manager COM COMPLETED N/A ITM 6 Designated Approver N/A Designated Approver (Minor Correction)

I

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 2 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT TABLE OF CONTENTS SECTION PAGE 1.0 P UR P O S E .......................................................................................................... 3

2.0 REFERENCES

/ RECORDS REQUIRED / COMMITMENT DOCUMENTS ....... 4 3.0 RESPONSIBILITIES ....................................................................................... 6 4.0 DEFINITIONS ................................................................................................. 6 5.0 INSTRUCTIONS ............................................................................................. 9 ATTACHMENTS ATTACHMENT 1 DATA ACQUISITION VIA ERDADS .................................... 12 ATTACHMENT 2 GROSS NOBLE GAS CONCENTRATIONS VIA EBERLINE CONTROL TERMINAL A OR B ........................................... 14 ATTACHMENT 3 GROSS NOBLE GAS CONCENTRATION VIA THE PC-1 1, RADIATION MONITORING CONSOLE ............................... 15 ATTACHMENT 4 UNIT I - DATA INTERPRETATION ..................................... 16 ATTACHMENT 5 UNIT 2 - DATA INTERPRETATION ..................................... 18 ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION .......................... 21 ATTACHMENT 7 METEOROLOGICAL DATA ................................................ 28 ATTACHMENT 8 RELEASE RATE DATA ...................................................... 38 ATTACHMENT 9 MANUAL DOSE CALCULATION ......................................... 61 ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT B URP ................................................................................ . . 71 ATTACHMENT 11 ESTIMATE OF CONTAINMENT "% MASS LOSS" ............. 77 ATTACHMENT 12 FIELD TEAM MEASUREMENTS ASSESSMENT ............... 79

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 3 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 1.0 PURPOSE 1.1 Discussion

1. This procedure is applicable to both Unit 1 and Unit 2. Should both units be affected, provisions have been made on the worksheets to sum the release rates.

2. Off-site dose estimates, release rates and containment radiation levels will be used by the EC for classifying emergencies and making Protective Action Recommendations (PARs).

3. Attachment 6, CLASS A MODEL DOSE CALCULATIONS, provides instructions for performing dose calculations using the computer model.

This model estimates off-site dose rates and cumulative doses and parallels this procedure. More detailed information on the Class A Model is available in the "FPL - Class A Emergency Offsite Dose Calc Program User Guide;" a controlled copy of which is available in the TSC and EOF.

4. Attachment 10, RESPONDING TO AN UNMONITORED CONTAINMENT BURP, is to be used to assess unmonitored releases resulting from rapid containment depressurization events.

5. Attachment 11, ESTIMATE OF CONTAINMENT "% MASS LOSS", is to be used to assess a rapid depressurization (i.e., greater than design basis) of containment through an estimate of containment volume loss.

6. Attachment 12, FIELD TEAM MEASUREMENTS ASSESSMENT, provides a method to back calculate a release rate from Field Monitoring Team survey results.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 4 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT

2.0 REFERENCES

/ RECORDS REQUIRED / COMMITMENT DOCUMENTS NOTE One or more of the following symbols may be used in this procedure:

§ Indicates a Regulatory commitment made by Technical Specifications, Condition of License, Audit, LER, Bulletin, Operating Experience, etc. and shall NOT be revised without Facility Review Group review and Plant General Manager approval.

¶ Indicates a management directive, vendor recommendation, plant practice or other non-regulatory commitment that should NOT be revised without consultation with the plant staff.

TP Indicates a step that requires a sign off on an attachment.

2.1 References

1. St. Lucie Plant Updated Final Safety Analysis Report (UFSAR), Unit 1 and Unit 2

2. St. Lucie Plant Radiological Emergency Plan (E-Plan)

3. E-Plan Implementing Procedures (EPIP 13)

4. HP-2, FP&L Health Physics Manual

5. QI-17-PSL-1, Quality Assurance Records

6. Bases for Accident Dose Calculations for St. Lucie Nuclear Power Plant (Bases prepared by HMM Associates of Waltham, Massachusetts)

7. NUREG-0654, Rev. 1, FEMA Rep-1, Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants, November, 1980

8. NUREG/BR-1 50, Vol. 1, Response Technical Manual

9. EPA-400-R-92-001, EPA Manual of Protection Action Guides and Protective Actions for Nuclear Incidents, October, 1991.

10. ¶2 FPL Engineering Calculation PSL-BFJM-93-032, March, 1994.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 5 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 2.2 Records Required

1. All completed data/worksheets or computer generated forms providing similar information, shall be maintained in the plant files in accordance with QI-17-PSL-1.

2.3 Commitment Documents

1. ¶1 Condition Report 96-2609 (ERDADS Data/Fan Status)

2. ¶3 PMAI PM99-09-016 (PARs Based on FMT Data)

3. T4 Condition Report 00-1426 Supplement 1 (Fan Flowrates)

4. ¶5 PMAI PM01-05-073, Condition Report CR 01-0351 (Determination of Delta T)

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 6 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 3.0 RESPONSIBILITIES 3.1 The Chemistry Department shall be responsible for performing off-site dose calculations, when directed by the Emergency Coordinator.

3.2 The EOF Dose Assessor shall take primary responsibility for dose assessment when the EOF is operational.

4.0 DEFINITIONS 4.1 Abbreviations/Acronyms

1. PAR - Protective Action Recommendation - designation used on a Dose Calculation Worksheet that refers to data that should be used when determining Protective Action Recommendations.

2. SNF - State Notification Form - designation used on the Dose Calculation Worksheet that refers to data that should be transferred to the Florida Nuclear Plant Emergency Notification Form.

3. Class A Model - Commonly used to refer to the "FPL - Class A Emergency Offsite Dose Calc Program".

4.2 Affected Unit - (for purposes of this procedure) - a reactor unit that has activated the Emergency Plan and has a release.

4.3 Iodine Removal System - is defined as any one Containment Spray pump running with its chemical addition system injecting the chemicals.

1. This system is considered in service if any one Containment Spray Pump is running AND for:

A. Unit 1, if its Sodium Hydroxide (NaOH) tank level is decreasing.

B. Unit 2, if its Hydrazine (N2 H4 ) pump is "ON".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 7 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 4.4 Core Overheating / Melting - Severe core damage, beyond gap failure, typically indicated by:

1. The core being uncovered, by coolant, for 30 minutes or more.

2. CHRRM reading greater than 4.2 E+4 R/hr.

NOTE The 7000F Core Exit Thermocouple value used in other procedures signifies the starting point for potential core melting. The value used in this procedure signifies that the core is in an overheat condition, melting is imminent and the release may include particulates, (e.g., Bariums, Cesiums, Strontiums, etc.).

3. Valid Core Exit Thermocouple reading(s) in excess of 1700'F.

4.5 Particulate Factor (PF) - a factor used when core melt or overheat is under way to account for the particulate in the release pathway.

NOTE Prior to the declaration of a release, all viable channels for the effluent pathway should be evaluated to confirm increase of the applicable monitor reading(s).

4.6 Release - during any declared emergency, one of the following is true:

1. Any effluent monitor increase of (approximately) 10 times or one decade above pre-transient values OR

2. Health Physics detecting airborne radioactivity levels in excess of 25 percent Derived Air Concentration (DAC) outside of plant buildings due to failure of equipment associated with the declared emergency.

4.7 Sea-breeze - is a coastal phenomena where an artificial ceiling may exist.

1. Our meteorological data processing methods assume that this ceiling acts as a limit to vertical mixing; that is, the plume is below the ceiling. This leads to a slightly higher concentration for a given stability class.

2. The Class A Model will, in some cases, state "Sea-breeze: Yes", when manual calculations would indicate No Impact. The Class A Model is stating that sea-breeze may exist, although there is no impact because the ceiling is too high to affect the vertical mixing within 10 miles of the plant.

This will not cause significant deviations in calculations performed using the two methods.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 8 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 4.8 Symbols - the following symbols are used in this procedure:

1. < = less than

2. < = less than or equal to

3. > = greater than

4. > = greater than or equal to

5. E =stands for exponent and indicates the power to which 10 is raised, "or times 10 to the power of", e.g.:

A. E + 04 =10 4 = 10,000 B. E - 04 =10-4 = 0.0001

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 9 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 5.0 INSTRUCTIONS 5.1 Data Acquisition NOTE Be aware of the possibility of a release from an unmonitored point.

Evaluating data on system / component pressures, operating characteristics and local area radiation monitors will help identify such releases.

1. Evaluate available plant data to determine if a release has occurred or is imminent.

2. When a release is confirmed, acquire meteorological and source term data; NOTE Information on Data Interpretation, Plant Parameters, Release Pathways and Effluent Monitors for Unit 1 and Unit 2 is available in Attachments 4 and 5, respectively.

A. If ERDADS - Emergency Data Acquisition and Display System, is available, Then:

1. Obtain SMD and / or RG (1 or 2) as provided in Attachment 1.

B. If ERDADS is unavailable, or some of its data is unusable, Then:

1. Obtain meteorological data as provided in Attachment 7.

2. Obtain Unit 1 Gross Noble Gas concentrations via Eberline Control Terminal A or B as provided in Attachment 2.

3. Obtain Unit 2 Gross Noble Gas concentrations via the PC-1 1, Radiation Monitoring Console as provided in Attachment 3.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 10 of PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 5.1 Data Acquisition (continued)

2. (continued)

C. Obtain plant ventilation exhaust fan status NOTE When obtaining plant ventilation exhaust fan status from the Control Room, specify fan numbers.

1. Prior to a fully-staffed TSC, obtain exhaust fan status from the affected Control Room.

NOTE TSC Sound-powered Phone Talker can be utilized as a source for plant ventilation exhaust fan status not available from TSC status boards.

2. When the TSC is fully staffed, obtain exhaust fan status from the Safety Functions and Equipment Status board in the TSC.

3. When the EOF is operational, obtain exhaust fan status from TSC Dose Assessor or TSC Chemistry Supervisor.

5.2 Off-Site Dose Calculations Methodologies

1. The Class A Model should be used if it is available.

A. Perform system start-up and pre-use verification QC Check in accordance with Attachment 6.

B. If system start-up and QC check are acceptable, perform dose calculations using the Class A Model.

2. If Class A Model is NOT available, Then perform manual dose calculations using Attachments 7 through 12.

5.3 Provide the Emergency Coordinator with dose calculation results prepared in the Control Room or TSC.

1. Provide TSC Administrative Staff with dose calculation results prepared in the Control Room or TSC and request results are faxed to EOF.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 11 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT 5.4 Provide the Recovery Manager and EOF HP Manager with dose calculation results prepared in the EOF.

5.5 The TSC Chemistry Supervisor or EOF HP Manager, once the EOF is operational, should monitor release rates and meteorological conditions to determine how frequently to update the dose rate estimates.

1. Release and dose estimates shall be revised at least hourly for the first 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months after the accident unless it is determined that releases of radioactivity have been terminated.

2. When performing manual dose calculations, If any of the following averages change by the amounts indicated below, over a period of 30 minutes or less, Then dose estimates shall be updated.

A. Release rates increase by more than 25 percent.

OR B. Wind speed decreases to less than one half of previous value.

OR C. Atmospheric stability becomes more stable by more than one class (e.g., change from stability D to F).

OR D. Wind direction changes by more than 22.5 degrees (i.e., plume centerline is more than one sector away from prior location).

END OF SECTION 5.0 I

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6 OFF-SITE DOSE CALCULATIONS 12 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT I DATA ACQUISITION VIA ERDADS (Page 1 of 2)

CAUTION

1. Large errors may result if the ERDADS computer is NOT addressing the affected unit's database.

2. T, "No data" after a parameter name means that this input is NOT available from ERDADS for this unit.

1. System Set-up A. Check for a small square cursor at the top left corner; if it is present, the unit is ready.

1. If it is not present, be sure the <DIM/NON-DIM> select (on keypad) is on <NON/DIM> and then increase the contract and brightness (knobs at the bottom left of screen).

B. Press <CLEAR>.

C. Type "Pup Unit 1" to access Unit 1 data, type "Pup Unit 2" to access Unit 2 data, then press <EXEC>.

D. Top of screen will read "Unit change is complete" or "Current Unit is same as entered Unit".

2. To access data using Primary Group Key A. Press <CLEAR>.

B. Press the yellow <EPIP> key.

1. SMD, titled "Site Meteorological Data", showing 15 minute average 10 and 59.7 meter wind speed, wind direction, temperature and differential temperature will display.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 13 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT I DATA ACQUISITION VIA ERDADS (Page 2 of 2)

2. (continued)

C. Press <PG-DN> to scroll through, in order:

1. RG (1 or 2), titled "Radiation Gaseous Source Term", showing plant effluent monitor, Main Steam Line monitor, CHRRM and containment pressure and same site meteorological data in SMD.

CAUTION

¶i Certain parameters (e.g., fan status) available on Unit 2 (SF2) are NOT available on Unit 1 (SF1).

2. SF (1 or 2), titled "Safety Functions and Equipment Status",

showing TSC Status Board data.

3. RBS, titled "Health Physics Evaluation Screen" showing containment radiation levels and trends (not required for dose assessment).

4. EF (1 or 2), titled "EOF Data Sheet" showing EOF Status Board data.

5. Return to SMD.

3. To access Chemistry Data and Radiation Monitors:

A. Press <CLEAR>.

B. Type R (Unit 1) and press <DSPLY>.

I. R (Unit 1), page 1 of Radiation Monitors showing area radiation monitor data will display. Press <PG-DN> to display following pages of radiation monitor data.

4. To access other data using Display Name Code:

A. Press <CLEAR>.

B. Type the 3 character alpha-numeric display name code and press

<DSPLY>.

END OF ATTACHMENT 1

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6 OFF-SITE DOSE CALCULATIONS 14 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 2 GROSS NOBLE GAS CONCENTRATIONS VIA EBERLINE CONTROL TERMINAL A OR B (Page 1 of 1)

I ~CAUTION Eberline Control Terminal A or B supplies data for Unit 1 only.

1. Enter the following sequence on the keypad for each applicable channel number:

A. Press 10 MIN HIST.

B. Determine the applicable pathway channel number from the table below.

C. Enter the applicable pathway channel number (leading zeros not required).

D. Press ENTER (value appears in window).

E. Press PRINT.

F. Press FILE.

G. Press ENTER.

H. Enter effluent monitor data into the applicable Release Rate Data Sheet.

NOTE Use a steamline channel ONLY if the Safeties and / or Atmospheric Steam Dumps are releasing steam. Monitors have one range.

Range Path Low Mid Hi Plant Vent 1-5 1-7 1-9 ECCS - A 2-5 2-7 2-9 ECCS - B 3-5 3-7 3-9 Fuel Bldg. 4-5 4-7 4-9 Steamline A NIA 5-1 N/A Steamline B N/A 5-2 N/A

2. The Eberline Terminal provides a ribbon paper print out of several rows of ten (10) minute averages of the concentration for the selected pathway channel.

The last row is the current value for the selected pathway channel. The row above the last row is the most recent full ten (10) minute average and should be used as the source data for dose calculations.

END OF ATTACHMENT 2

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6 OFF-SITE DOSE CALCULATIONS 15 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 3 GROSS NOBLE GAS CONCENTRATION VIA THE PC-1 1. RADIATION MONITORING CONSOLE (Page 1 of 1)

I ~CAUTION The PC-1 1 Radiation Monitoring Console supplies data for Unit 2 only.

1. Use the following keystroke sequence for each applicable channel number:

A. Press Key F8 to display Control Menu.

B. Use the ARROW Key to highlight the RM-80 Utility Task under the status display.

C. Press ENTER key.

D. Press Key F1 to select Historical Display.

E. Press Key F4 to select Graph 10 Minute.

F. Determine the applicable pathway Channel Number, from the table below.

G. At prompt, type M and the Channel Number.

H. Press ENTER.

I. Record Top #1 reading in applicable DATA column.

J. Press Key F10.

K. Press Key F10.

L. Press Key F1 to display All Monitor Schematic.

Applicable Pathway Channel Number Range Path Low Mid Hi Plant Vent 621 622 623 ECCS - A 601 602 603 ECCS - B 611 612 613 Fuel Bldg. (If NOT diverted) 413 N/A N/A Steamline A N/A 631 N/A Steamline B N/A 632 N/A Background (Steamline) N/A 633 N/A END OF ATTACHMENT 3

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6 OFF-SITE DOSE CALCULATIONS 16 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 4 UNIT 1 - DATA INTERPRETATION Parameters, Pathways and Effluent Monitors (Page 1 of 2)

1. If a single effluent monitor channel is operable and on scale, Then use the value for that channel. If the channel is not on-scale, do NOT use the channel.

2. If two effluent monitor channels for the same pathway are operable, on-scale, and display concentration values in the overlapping range, Then use the highest (most conservative) value.

3. Eberline SPING Effluent Montiors

Used on Unit 1 Plant Vent, ECCS A & B and FHB

All have 3 gas channels; low, mid and high range

Indicate "BAD" if out of instrument range, high or low

4. Steam Generator Tube Rupture (SGTR)

Use a steamline channel only if the Safeties and / or Atmospheric Dumps are releasing steam. Otherwise, verify alignment of Steam Jet Air Ejector exhaust to the Plant Vent (PV) and utilize PV effluent monitor.

5. Containment Isolation Signal (CIS)

Initiates:

Prior to Containment Pressure reaching 5 psig

When Containment Radiation is equal to or greater than 10 r/hr

At a Safety Injection Actuation Signal

Isolates HVE 10 A & B 0 Auto starts HVE 6A & B and HVE 9A & B

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 17 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 4 UNIT I - DATA INTERPRETATION Parameters, Pathways and Effluent Monitors (Page 2 of 2)

6. Safety Injection Actuation Signal (SIAS)

Initiates:

Prior to Containment Pressure reaching 5 psig

When Pressurizer Pressure is equal to or greater than 1600 psia Isolates HVE 10A & B

Auto starts HVE 6A & B and HVE 9A & B Accident Type Release Pathway Fans Comments LOCA Plant Vent 6 & 10 10 Fans secure on SIAS / CIS ECCS 9 6 & 9 fans auto start on SIAS / CIS SGTR Plant Vent 6 & 10 Air Ejector aligned to PV Atmosphere N/A Atm. Dumps and Safeties Open FUEL HANDLING FHB Stack 15,16 & 17 CASK DROP FHB Stack 15,16 & 17 WGDTR Plant Vent 6 &10 Effluent Monitor Channel Units Scale (min - max) Normal (non-emergency)

Reading Plant Vent - LR 01-05 RCi/cc 1.OE 6.OE-02 E-07

- MR 01-07 p.Ci/cc 2.5E 4.0E+02 E-04

- HR 01-09 p+/-Ci/cc 1.0E+00 - 1.OE+05 E-01 CHRRM - A 58 r/hr 1.OE+00 - 1.OE+07 E-01 CHRRM - B 59 r/hr 1.0E+00 - 1.OE+07 E-01 Post LOCA - A 52 mr/hr 1.OE+00 - 1.OE+05 E+00 Post LOCA - B 53 mr/hr 1.OE+00 - 1.OE+05 E+00 ECCS - A - LR 02-05 liCi/cc 1.OE 6.OE+02 E-07

- MR 02-07 lRCi/cc 2.5E 4.OE+02 E-04

- HR 02-09 40Ci/cc 1.0E+00 - 1.0E+05 E-01 ECCS - B - LR 03-05 RCi/cc 1.OE 6.OE+02 E-07

- MR 03-07 PCi/cc 2.5E 4.OE+02 E-04

- HR 03-09 pCi/cc 1.OE+00 - 1.0E+05 E-01 Steamline - A 05-01 mr/hr 1.OE 1.OE+04 E-02 Steamline - B 05-02 mr/hr 1.OE 1.OE+04 E-02 Fuel Bldg. - LR 04-05 RCi/cc 1.0E 6.OE+02 E-07

- MR 04-07 pCi/cc 2.5E 4.OE+02 E-04

- HR 04-09 pCi/cc 1.OE+00 - 1.OE+05 E-01 CIS Monitor N/A mr/hr I.OE+00 - 1.0E+05 E+01 END OF ATTACHMENT 4

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6 OFF-SITE DOSE CALCULATIONS 18 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 5 UNIT 2 - DATA INTERPRETATION Parameters, Pathways and Effluent Monitors (Page 1 of 3)

1. If a single effluent monitor channel is operable and on scale, Then use the value for that channel. If the channel is not on-scale, do not use the channel.

2. If two effluent monitor channels for the same pathway are operable, on-scale, and display concentration values in the overlapping range, Then use the highest (most conservative) value.

3. Unit 2 Effluent Monitor channels 604, 614 and 624 All provide values in pCi/sec that should not be used for dose calculations These channels should not be used to identify or validate a release

4. Wide Range Gas Monitor (WRGM) Effluent Monitors 0 Used on Unit 2 PV and ECCS A & B 0 Each monitor has three (3) gas channels; low, mid and high range 0 Each monitor uses a 2 sample pump system; the LOW range gas channel utilizes a pump system which is independent of the MID and HIGH range gas channels pump system

All three gas channels share a common alert and high alarm channel; once the alert or high alarm occurs, it will not occur again, regardless of the channel in operation.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 19 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 5 UNIT 2 - DATA INTERPRETATION Parameters, Pathways and Effluent Monitors (Page 2 of 3)

5. SGTR Use a steamline channel only if the Safeties and / or Atmospheric Dumps are releasing steam. Otherwise, verify alignment of Steam Jet Air Ejector exhaust to the PV and utilize PV effluent monitor.

Steamline monitors on Unit 2 must be background corrected prior to use in the Release Rate calculation table. Use NET value (i.e., Channel Background).

EXAMPLE Channel 631 (SIG "A") = 12 mr/hr Channel 632 (S/G "B") = 2.2 mr/hr Channel 633 (Bkgd) = 2.0 mr/hr NET Value for S/G "A" = 10 mr/hr NET Value for S/G "B" = 0.2 mr/hr

6. Fuel Handling Building (FHB) Pathway

Verify alignment of the FHB exhaust system. During a high radiation condition in the Unit 2 FHB, exhaust may be diverted to the Shield Building and thus routed to the PV for discharge.

7. CIS

Initiates:

Prior to Containment Pressure reaching 3.5 psig When Containment Radiation is equal to or greater than 10 r/hr

At a SIAS Isolates HVE 10A & B 0 Auto starts HVE 6A & B and HVE 9A & B

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 20 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 5 UNIT 2 - DATA INTERPRETATION Parameters, Pathways and Effluent Monitors (Page 3 of 3)

8. SIAS

Initiates:

Prior to Containment Pressure reaching 3.5 psig When Pressurizer Pressure is equal to or greater than 1736 psia

Isolates HVE 10A & B

Auto starts HVE 6A & B and HVE 9A & B Accident Type Release Pathway Fans Comments LOCA Plant Vent 6 & 10 10 Fans secure on SIAS / CIS ECCS 9 6 & 9 fans auto start on SIAS / CIS SGTR Plant Vent 6 & 10 Air Ejector aligned to PV Atmosphere N/A Atm. Dumps and Safeties Open FUEL HANDLING FHB Stack 15, 16 & 17 Divert to Shield Bldg. (PV) on Hi Rad Plant Vent 6 & 10 CASK DROP FHB Stack 15,16 & 17 Divert to Shield Bldg. (PV) on Hi Rad Plant Vent 6 & 10 WGDTR Plant Vent 6&10 Effluent Monitor Channel # Units Scale (min - max) Normal (non-emergency)

Reading Plant Vent - LR 621 pCi/cc 1.OE 1.OE-01 E-07

- MR 622 pCi/cc 1.2E 1.2E+03 N/A

- HR 623 i_.Ci/cc 1.01E 1.0E+05 N/A CHRRM - A 40 r/hr 1.OE+00 - 1.OE+08 E+00 CHRRM - B 41 r/hr 1.0E+00 - 1.0E+08 E+00 Post LOCA - A 38 mr/hr 1.OE+01 - 1.0E+07 E+01 Post LOCA - B 39 mr/hr 1.OE+01 - 1.OE+07 E+01 ECCS - A - LR 601 RCi/cc 1.OE 1.OE-01 E-07

- MR 602 [LCi/cc 1.2E 1.2E+03 N/A

- HR 603 pCi/cc 1.0E 1.OE+05 N/A ECCS - B - LR 611 ipCi/cc 1.OE 1.OE-01 E-07

- MR 612 pCi/cc 1.2E 1.2E+03 N/A

- HR 613 gCi/cc 1.OE 1.OE+05 N/A Steamline - A 631 mr/hr 1.0E+00 - 1.0E+05 E-01 Steamline - B 632 mr/hr 1.0E+00 - 1.0E+05 E-01 Steamline Bk9. 633 mr/hr 1.OE+00 - 1.OE+05 E-01 Fuel Bldg. - LR 413 pCi/cc 1.OE 1.OE-01 E-07 CIS Monitor N/A mr/hr 1.0E+00 - 1.OE+07 E+01 END OF ATTACHMENT 5

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 21 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 1 of 7)

Discussion The computer-based Class A Model dose calculation program utilizes inputs and processes similar to the manual procedure. However, refinements in the Class A Model allow for a wider range of input information and mathematical complexity. These instructions provide the guidance for using the Class A Model to derive calculated off site doses in a manner similar to that discussed for the manual calculation. Not all input screens available in the computer program are needed by the general user and are, therefore not discussed in these instructions.

The Class A Model provides two (2) types of dose calculations. The "Actual Dose Calculation" is accomplished in advection steps of fifteen (15) or thirty (30) minutes and is a cumulative dose determination. The "Forecast Dose Calculation" is a projected dose determination based on a given time period such as two (2) hours. Personnel having expertise in dose calculation methodology may utilize the advanced methods available through the screen driven menus to modify and refine these basic calculations.

NOTE If both the Technical Support Center (TSC) and Emergency Operations Facility (EOF) are operational, dose assessment personnel at both locations should coordinate their efforts as a self-check to assure accuracy.

Computer Startup

1. Ensure the uninterruptible power supply to the computer is energized to prevent data loss if a power interruption occurs.

2. Ensure that the floppy disk drive is empty.

3. Turn on the display monitor, the printer and the computer.

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6 OFF-SITE DOSE CALCULATIONS 22 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 2 of 7)

4. Following system startup, check the date and time on the computer.

NOTE Correcting the date and time should be done prior to using a stand-alone computer. When using a computer on the LAN, contact a LAN administrator if the date and/or time need to be changed.

A. If the dose calculation program starts, Then the date and time is shown in the upper left of the monitor.

B. Correct the date and time as necessary (time should match ERDADS).

Changing the date/time.

1. Depress Function Key F5 (to quit the Class A software).

2. Type "Y".

3. Depress the "ENTER" key.

4. At the system prompt, type "TIME" (or "DATE" as required).

5. Depress the "ENTER" key.

6. Type correct data and depress "ENTER" key.

C. If the dose calculation program does not start, Then the date and time is checked at the system prompt using Steps 4-6 above.

5. When the computer displays the system prompt, and has correct date/time, type "FPL" and depress "ENTER" key to return to Class A software.

Pre-use QC Check

1. If time and manpower permits, Then perform a pre-use verification QC check following the instructions in the FPL Class A Emergency Offsite Dose Calc Program User Guide.

2. At the completion of the pre-use QC check, exit to the Main Menu, and proceed to step 3 of Performing Calculations, below.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 23 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 3 of 7)

NOTE If editing is required, edit the information in accordance with the displayed instructions.

Performing Calculations CAUTION Changing "Advection time step" after a calculation step can cause the Class A model to generate errors.

1. When the plant site menu is displayed, Then depress the Function Key (i.e.,

F1-Unit 1 or F2-Unit 2) to select the affected St. Lucie Plant Unit.

2. When the program asks, "Is this an exercise [Y/N]?", Then answer appropriately and depress the "ENTER" key.

3. When the Main Menu is displayed, Then select the F1 Function Key to start calculations.

4. When prompted by the program, 'Warning - Start calculations will destroy previous dose values. OK [Y/N]?", Then depress "Y" and the "ENTER" key to reinitialize the data files.

NOTE

1. Thirty minute advection steps are normally used except for fuel handling accidents, for which fifteen minutes advection time steps should be used.

2. Once advection time is selected it should not be changed while running the program to prevent generating errors.

5. Select, from the General Accident Information Worksheet, the appropriate screen functions to edit the type of accident, reactor trip time, release start time, and advection step. Use the format shown on the screen by depressing the corresponding Function Keys, F1, F2, F3 or F4 respectively, Then depress "ENTER" after each new entry.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 24 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 4 of 7)

6. When the correct type of accident, reactor trip time, release start time, and the advection time step have been entered, Then depress the F5 Function Key to accept the inputs.

7. When the Input Menu is displayed, Then depress the F1 Function Key to bring up the Meteorological Data menu.

8. When the Meteorological Data Summary Menu is displayed, Select the data sheet corresponding to the source of the data (i.e., Site Tower (ERDADS, chart recorder), Airport (NOAA, NWS), Default).

9. Enter the meteorological data gathered in the format shown using the displayed Function Keys, Then depress the "ENTER" key after each new entry.

10. When all necessary meteorological data has been entered, Then depress the F5 Function Key to accept the data and go to the Meteorological data Summary Menu.

11. Review the entered meteorological data, Depress the F5 Function Key to accept the data and Then return to the Input Menu.

12. When the Input Menu is displayed, Then depress the F2 Function Key to bring up the Source Term Data menu.

13. If the accident type is a LOCA or SGTR, Respond appropriately to the question about the Core Damage Situation.

14. If the accident type is a LOCA, Respond appropriately to the question about the Iodine Removal System Status.

15. When the Source Term Summary Menu is displayed, Select the data sheet corresponding to the source of the data (i.e., Grab Sampling, Effluent Monitors, CHRRM, Post LOCA Monitors, Default).

16. Enter the source term data gathered in the format shown using the displayed Function Keys, Then depress the "ENTER" key after each new entry.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 25 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 5 of 7)

17. When the input of source term information has been completed, Then depress the appropriate Function Key to accept the data and return to the Input Menu.

18. If a final check of data accuracy is needed, Then depress the F3 Function Key to review a summary of the meteorological and source term data, Depress the F1 Function Key to print or the F2 Function Key to exit.

19. If the meteorological or source term data need to be revised, Go to step 7 or step 12 above, respectively.

20. Depress the F4 Function Key at the screen prompt, "Proceed with calculations V/N]?", and answer "Y", Depress the "ENTER" key to begin calculations.

NOTE "CRT Displays" may be used instead of "Print Reports".

21. When the Output Menu is displayed, Then depress the F3 Function Key to select "Print Reports".

22. When the Printed Report Menu is displayed, Then depress the displayed Function Keys to select the desired reports.

CAUTION EEnsure that the printer and print buffer are on line and ready for use prior to proceeding with the printing task. If either device is not ready for use, the computer will exit the dose calculation program.

23. Depress any key to begin printing.

24. When the Output Menu is displayed, Then depress the F6 Function Key to select the Run Mode Menu.

25. When the Run Mode Menu is displayed, Then depress the F1 Function Key to select the Actual Calculation Mode and perform the next advection step (cumulative dose calculation) or depress the F2 Function Key to select the Forecast Calculation Mode.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 26 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 6 of 7)

NOTE

1. Forecast periods are typically two (2) hours.

2. Forecast doses assume release rates and meteorological conditions remain constant during the forecasting period chosen.

3. Consider the reasonableness of assuming constant meteorological conditions and release rates for forecasting periods exceeding two (2) hours.

26. Edit the forecast period as desired using the displayed instructions.

27. When the forecast period has been accepted, the Input Menu: Forecast Calculation Mode will be displayed, Then depress the displayed Function Keys to review and/or edit the inputs as necessary.

28. When all inputs are acceptable, Then depress the F4 Function Key to perform calculations, at the screen prompt, "Proceed with calculations [/N]?", and answer "Y", and Depress the "ENTER" key to begin calculations.

NOTE "CRT Displays may be used instead of "Print Reports".

29. When the Output Menu - Forecast Calculations mode is displayed, Then depress the F3 Function Key to select "Print Reports".

30. When the Printed Report Menu is displayed, Then depress the displayed Function Keys to select the desired reports.

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6 OFF-SITE DOSE CALCULATIONS 27 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 6 CLASS A MODEL DOSE CALCULATION (Page 7 of 7)

CAUTION The printer and print buffer must be on line and ready!

NOTE

1. The Emergency Coordinator should be provided with a printout of actual calculated doses, Protective Action Recommendations (PARs), and as requested, forecasted doses.

2. The Emergency Coordinator should be updated every thirty minutes during periods of actual or potential off-site release.

31. When the reports have been printed, Then return to the Run Mode Menu to update information and repeat the dose calculation process as needed due to release rate or meteorological changes.

32. Depress the F1 Function Key for the Actual Calculation Mode or the F2 Function Key for the Forecast Calculation Mode or the F3 Function Key to return to the Main Menu and quit.

33. Review the Summary of Met and Source Data displays for all subsequent calculations even if the inputs do not change so that they can be reviewed and accepted. Also ensure that the Noble Gas Reduction Factor is reset to its proper value.

END OF ATTACHMENT 6

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 28 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA (Page 1 of 10)

1. Obtain Meteorological Data A. Complete applicable pages from this attachment. Three methods are presented in preferential order. To supplement / complete any missing data in the chosen method, use one or both of the other methods. The methods are to be used in the order presented.

1. Method 1 - Site Met Tower Provides data from the primary and alternate locations on the Site Meteorological Tower. Use Method 1.

2. Method 2 - NOAA / NWS Provides meteorological observations taken at the National Oceanic Atmospheric Administration / National Weather Service in Melbourne, Fl. Use Method 2.

3. Method 3 - Default Values Daytime and nighttime default values are listed in Method 3.

B. Select Dose Calculation Worksheet

1. The Worksheet to be used for Dose Calculations is determined as part of completing one of the Meteorological Data Methods.

2. The Worksheet will be used to determine doses after a Release Rate Data Sheet is completed.

I

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 29 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 1 - SITE TOWER (Page 2 of 10) (Page 1 of 3)

1. Gather Meteorological Data:

A. Date & Time of meteorological observations CAUTION Wind speed, wind direction and Delta temperature values should vary with time, i.e., chart recorders in the Unit 1 Control Room and AlA Site Tower Shack should NOT be straight-lining. Unchanging data should be investigated. If initial efforts to correct straight-lining fail, alternate sources of data may be used.

B. Enter 10 Meter (alternate 57.9 Meter) WIND SPEED: - mph C. Enter 10 Meter (alternate 57.9 Meter) WIND DIRECTION (from) -deg.

D. Enter Delta-T (displayed by ERDADS)_ _deg. F E. ¶5 If Delta T is not available from ERDADS, Then:

1. Enter the difference: 57.9 meter temperature minus 10 meter temperature:

2. Multiply that difference by 1.044:

F. If performing Class A Model dose calculation, Then use the above noted information during meteorological data entry.

G. If performing manual dose calculations, Then proceed to Step 2 of this attachment.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 30 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 1 - SITE TOWER (Page 3 of 10) (Page 2 of 3)

2. Determine STABILITY CLASS A. Using Delta-T (AT) and the guide below, determine and enter the Stability Class If DELTA-T is Then Stability Class is less than or equal to -1.7 A

-1.6 to -1.5 B

-1.4 C

-1.3 to -0.5 D

-0.4 to +1.4 E

+1.5 to +3.6 F greater than +3.6 G

3. Determine AFFECTED SECTORS A. Using the guide below, select and circle the AFFECTED SECTORS.

CAUTION Wind direction indicated as greater than 3590 should be corrected by subtractinnq 3600 from the indicated direction.

I"I Ij II NOTE

Ifthe wind direction is directly on the edge of two sectors (e.g., 11', 330, 560, etc.), an additional sector should be added to the Affected Sectors.

For example, if the wind direction is from 780, then the affected sectors should be L, M, N and P.

To avoid confusion, there is no sector "0"or "I".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 31 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD I - SITE TOWER (Page 4 of 10) (Page 3 of 3)

4. Check for SEA BREEZE EFFECT:

Only if All of the following conditions are met, then the Sea Breeze effect is YES If one or more conditions are NOT met, then the Sea Breeze effect is NO 0 Stability Class A, B or C 0 Time of day 6 AM to 7PM 0 Wind Direction (from) is between 0 through EAST to 180 degrees

10 meter air temperature greater than HISTORICAL AVERAGE SURFACE WATER, listed below:

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 69 65 69 73 76 79 80 81 81 79 74 71 Sea Breeze Impact (Yes or No)

5. Select a DOSE CALCULATION WORKSHEET A. Using the guide below, select a worksheet from Attachment 9.

Stab. Seabreeze Dose Calc Stab. Seabreeze Dose Calc Stab. Dose Calc Class Impact Worksheet Class Impact Worksheet Class Worksheet A YES 1 D 7 A NO 2 C YES 5 E 8 B YES 3 C NO 6 F 9 B NO 4 G 10

6. Copy information to the selected DOSE CALCULATION WORKSHEET:

A. WIND DIRECTION and the AFFECTED SECTORS to line A B. WIND SPEED to line 2

7. This data sheet is completed, proceed to release rate determination.

END OF METHOD 1

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 32 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT I

ATTACHMENT 7 METEOROLOGICAL DATA METHOD 2 - NOAA I NWS (Page 5 of 10) (Page 1 of 5)

1. Gather METEOROLOGICAL DATA:

A. Call NOAA / National Weather Service (NWS) Melbourne Office. The phone number is located in the St. Lucie Plant Emergency Response Directory, Section 4.0, Off-site Support. When the NOAA I NWS person answers, identify yourself as a FPL - St. Lucie Plant and obtain the following information:

1. Date I Time of observation: /

Eastern Standard Time (circle one)

Daylight Savings Time

2. WIND DIRECTION (From): -------- Degrees NOTE Request NOAA I NWS to provide wind speed in miles/hour.

3. WIND SPEED: mph

4. Sunrise: -am Sunset: pm

5. Sky Condition (circle one): Clear Scattered Overcast Broken

a. If sky condition is overcast or broken, Then enter Ceiling Height ___ ft.

6. Estimated air temperature for Ft. Pierce area -- OF

7. If time permits, ask for a weather forecast for the area:

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 33 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 2 - NOAA I NWS (Page 6 of 10) (Page 2 of 5)

2. Determine STABILITY CLASS A. Determine the Solar Radiation Characteristic

1. If Daytime (1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months after sunrise to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months before sunset), Then:

a. Determine Solar Altitude from Figure 1 (at the end of this method sheet), using time and date.

b. Circle the Solar Radiation Characteristic on the table below, using Sky Condition, Ceiling Height and Solar Altitude.

Day Sky Ceiling, Solar Altitude Condition Feet

<l15deg 15to<35deg 35 to 60deg >60deg Overcast < 7000 Nil Nil Nil Nil 7K to 16K Weak Weak Weak Slight

> 16000 Weak Weak Slight Moderate Broken < 7000 Weak Weak Weak Slight 7K to 16K Weak Weak Slight Moderate

> 16000 Weak Slight Moderate Strong Clear not applicable Weak Slight Moderate Strong Scattered _ _ 1

2. If NOT Daytime, Then:

a. Circle the Solar Radiation Characteristic on the table below, using Night Sky Condition and Ceiling Height.

Night Sky Condition Ceiling, Ft. Solar Radiation Characteristic Overcast less than 7000 Nil 7000 or higher Weak Loss Broken not applicable Weak Loss Clear or scattered not applicable Strong Loss

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 34 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 2 - NOAA I NWS (Page 7 of 10) (Page 3 of 5)

2. (continued)

B. Select Stability Class

1. Using the Wind Speed in MPH and the Solar Radiation Characteristic, find in the table below and circle the Stability Class.

Solar Wind Speed in MPH Radiation 0to >1.2to >3.5- >5.8- >6.9- >8- >10.4- >11.5- >12.7 1.2 3.5 5.8 6.9 8 10.4 11.5 12.7 Strong A A A B B B C C C Moderate A B B B B C C C D Slight B B C C C C C D D Weak C C C D D D D D D Nil D D D D D D D D D Weak Loss F F E E D D D D D Strong Loss G G F F E E E D D

3. Determine AFFECTED SECTORS A. Using the guide below, select and circle the Affected Sectors.

NOTE

If the wind direction is directly on the edge of two sectors (e.g. 110, 330, 560, etc.), an additional sector should be added to the Affected Sectors.

For example, if the wind direction is from 780, then the affected sectors should be L, M, N and P.

To avoid confusion, there is no sector "0" or "I".

Wind Affected Wind Affected Wind Affected From Sectors From Sectors From Sectors 348 - 11 HJK 123-146 PQR 236-258 CDE 11-33 JKL 146-168 QRA 258-281 DEF 33 -56 KLM 168- 191 RAB 281 -303 EFG 56-78 LMN 191 -213 ABC 303-326 FGH 78-101 MNP 213-236 BCD 326-348 GHJ 101-123 NPQ I I

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 35 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 2 - NOAA I NWS (Page 8 of 10) (Page 4 of 5)

4. Check for SEA BREEZE EFFECT:

Only if ALL of the following conditions are met, then the Sea Breeze effect is YES.

If one or more conditions are NOT met, then the Sea Breeze effect is NO.

Stability Class A, B or C

Time of day 6 AM to 7 PM

Wind Direction (from) is between 0 through East to 180 degrees Sea Breeze Impact (Yes or No)

5. Select a DOSE CALCULATION WORKSHEET A. Using the guide below, select a worksheet from Attachment 9.

Stab. Seabreeze Dose Calc Stab. Seabreeze Dose Calc Stab. Dose Calc Class Impact Worksheet Class Impact Worksheet Class Worksheet A YES 1 D 7 A NO 2 C YES 5 E 8 B YES 3 C NO 6 F 9 B NO 4 1 G 10

6. Copy information to the selected DOSE CALCULATION WORKSHEET:

A. From line 1A2, copy the WIND DIRECTION to line A of Dose Calculation Worksheet.

B. From line 1A3, copy WIND SPEED in mph to line 2 of Dose Calculation Worksheet.

C. From line 3A, copy the AFFECTED SECTORS to line A of Dose Calculation Worksheet.

7. This data sheet is completed, proceed to release rate determination.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 36 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 2 - NOAA / NWS (Page 9 of 10) (Page 5 of 5)

FIGURE 1. SOLAR ALTITUDE

- CID O)<O -- O C-1 CON U) (0 r-I 4

'II Fl - ! ' . . i I I

! i0 0rr I.

LUou 0

"ii II d.

Cc z 0 0 C,,

0.

"-i I--I

-2 I-- -- I--- IA, I 1-- N i1 I2 L4 0LU-ý WI-. 9 11inIT I I I_ I I

. . .. I

... __I (3

I-. V ,4-H -- + +1 - Z

0) -I~~ ~ I-°'I -LL- -=,

-- ' T '

--- i_

14*

0 2

ffI 2

,I I' i 1

__ -* = __ m =1-- -! m

l / L- -- __ -- * [I m I I --- I i..Ii..----.'rI '

2 E- - -

IF

+-

iI i, AI n -"

cKF 23 t-1 -mill IIH I

+ 4-4----- + A It ýI i I

+ --4---I =

4o:5 I: ýtl -1 ALI- I

1#1 #1 LO (t l- 0I 0 o - CJ cm Cm END OF METHOD 2

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 37 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 7 METEOROLOGICAL DATA METHOD 3 - DEFAULT (Page 10 of 10) (Page 1 of 1)

NOTE This method is to be used only if Site Met Tower and NOAAINWS data are not available.

1. If Daytime Hours (1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months after sunrise to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months before sunset), Then:

A. Select DOSE CALCULATION WORKSHEET 7.

B. Enter AFFECTED SECTORS = ALL in line A.

C. Circle Default in line B.

D. Enter WIND SPEED = 5 mph in line 2.

2. If Not Daytime, Then:

A. Select DOSE CALCULATION WORKSHEET 9.

B. Enter AFFECTED SECTORS = ALL in line A.

C. Circle Default in line B.

D. Enter WIND SPEED = 3 mph in line 2.

This data sheet is completed, proceed to release rate determination.

END OF METHOD 3 END OF ATTACHMENT 7

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 38 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 RELEASE RATE DATA (Page 1 of 23)

NOTE If both units are in a declared emergency and both units have or had a release, the site release rate is the sum of both units' release rates.

1. Determine Site Release Rate A. Complete applicable Data Sheet from this attachment, as appropriate for each affected unit and accident type. The five techniques are listed below in preferential order. Use the next techniques, in order, to supplement any missing data. Indicate the technique(s) used on the selected WORKSHEET from Attachment 9.

NOTE Grab sampling is the primary method. It is unlikely that results will be available in the early phases of an emergency. Dose assessment should not be delayed waiting for these results. Therefore, the Effluent Monitor method may be used initially. Dose assessment using grab sample data should be performed as soon as that data is available.

1. CHEMISTRY GRAB SAMPLING - Primary Method for all accident types For Unit 1, use Data Sheet 1A.

For Unit 2, use Data Sheet 2A.

2. EFFLUENT MONITORS - Alternate for all accident types, when Method 1 is unavailable.

For Unit 1, use Data Sheet 1B.

For Unit 2, use Data Sheet 2B.

3. CONTAINMENT HIGH RANGE RADIATION MONITOR - Alternate for LOCA only, when techniques 1 and 2 are unavailable.

Evaluate CHRRM readings by using Data Sheet 3.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 39 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 RELEASE RATE DATA (Page 2 of 23)

1. A. (continued)

4. POST LOCA MONITORS - Alternate for LOCA only, when techniques 1, 2 and 3 are unavailable.

Evaluate Post LOCA Monitor readings by using Data Sheet 4.

5. DEFAULT - Alternate for all accidents, only if no other technique is available.

For Default calculations for all accidents, use Data Sheet 5.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 40 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1A RELEASE RATE DATA UNIT 1 GRAB SAMPLE (Page 3 of 23) (Page 1 of 4)

1. Gather ACCIDENT DATA:

A. Date and time of data: --- _/__

B. Ask Emergency Coordinator:

1. Accident Type

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2):_ ho urs

2. Evaluate applicable RELEASE PATHWAY(S):

A. Based on Accident Type, select release pathway in the following table.

B. Check the ON fans.

C. Add up the flows in the spaces provided.

UNIT 1-PLANT VENT UNIT 1-FUEL BUILDING 4on ¶4 Fan 4on 114 Fan SCFM SCFM 6600 1-HVE-15 New Fuel 10563 1-HVE-6A Shield Bldg 6600 1-HVE-16A Fuel Pool 11385 1-HVE-6B 950 1-HVE-16B 11385 1-HVE-7A H2 Purge 950 1-HVE-17 H&V Room 6250 1-HVE-7B 52500 (Add) Fuel Bldg. Total =

1-HVE-8A RCB Exhaust 1-HVE-8B 52500 1-HVE-10A RAB Exhaust 92563 ECCS AREA 1-HVE-10B 92563 Fan 114 SCFM 33000 (Add) Plant Vent Total = 1-HVE-9A 1-HVE-9B 33000 D. Enter total pathway SCFM in the table below (Step 4) in the column labeled "SCFM".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 41 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1A RELEASE RATE DATA UNIT I GRAB SAMPLE (Page 4 of 23) (Page 2 of 4)

NOTE Chemistry Grab Sample results can be obtained from the TSC Chemistry Supervisor or TSC Dose Assessor.

3. Enter GRAB SAMPLE DATA:

A. Enter grab sample assay results for Gross Noble Gas pCi/cc concentration in the table below (Step 4) in the column labeled "pCi/cc".

B. Enter grab sample assay results for DEQ lodine-131 pCi/cc concentration in the table below (Step 4) in the column labeled "pCi/cc".

1. If DEQ Iodine-131 pCi/cc concentration is unavailable, perform Step 4 for Noble Gas concentration only.

4. Determine UNIT 1 RELEASE RATE:

A. Complete the table below:

(pCi/cc x SCFM x factor = Cil/sec)

Pathway TYPE pCi/cc I[4 SCFM factor Noble Gas, Ci/sec Iodine, Ci/sec Noble Gas Plant Vent 4.72 E -04 Iodine Noble Gas Fuel Bldg. Iodine 4.72 E -04 Noble Gas ECCS - A Iodine 33,000 4.72 E-04 Noble Gas ECCS - B Iodine 33,000 4.72 E -04

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 42 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1A RELEASE RATE DATA UNIT I GRAB SAMPLE (Page 5 of 23) (Page 3 of 4)

4. (continued)

B. If DEQ lodine-131 grab sample results are not available, Then estimate the Iodine Release Rate by:

1. Select Iodine Factor based on current Accident Type and Release Pathway.

PATHWAY LOCA SGTR MSLB WASTE GAS FUEL CASK DTR HANDLING DROP Plant Vent 0.01 1. E-06 1.0 4. E-05 0 0 ECCS 0.01 0 0 0 0 0 Fuel Bldg. 0 0 0 0 0.04 1.3 Steamline 0 1. E-03 0 0 0 0

2. Enter Gross Noble Gas Ci/sec and Iodine Factor in the following equation and perform the calculation.

x Gross Noble Gas Iodine Factor DEQ Iodine 131 Ci/sec Ci/sec

3. Enter DEQ Iodine 131 Ci/sec in the appropriate column in the table in Step 5.

5. Determine the SITE RELEASE RATE:

A. Complete the table below:

Noble Gas, Ci/sec Iodine, Cilsec Total the Unit 1 release rates determined above IF Unit 2 is AFFECTED, enter its release rates Add A and B to obtain the SITE RELEASE RATES

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 43 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1A RELEASE RATE DATA UNIT I GRAB SAMPLE (Page 6 of 23) (Page 4 of 4)

6. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Grab Sample.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

7. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 1A

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 44 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2A RELEASE RATE DATA UNIT 2 GRAB SAMPLING (Page 7 of 23) (Page 1 of 4)

1. Gather ACCIDENT DATA:

A. Date and time of data:

B. Ask Emergency Coordinator:

1. Accident Type-

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

hc urs

3. Potential DURATION of release (if unknown, use 2):

2. Evaluate applicable RELEASE PATHWAY(S):

A. Based on Accident Type, select release pathway in the following table.

B. Check the ON fans.

C. Add up the flows in the spaces provided.

UNIT 2-PLANT VENT UNIT 2-FUEL BUILDING If NOT Diverted to Plant Vent, Use Stated Flow Fan 4.on 114 Fan "Ion ¶14 SCFM SCFM 2-HVE-6A Shield Bldg 6600 2-HVE-15 New Fuel 12125 2-HVE-6B 6600 2-HVE-16A Fuel Pool 12500 2-HVE-7A H2 Purge 2500 2-HVE-16B Fuel Pool 12500 2-HVE-7B 2500 2-HVE-17 Bldg H&V 7500 2-HVE-8A RCB Exhaust 52500 (Add) Fuel Bldg. Total = _

2-HVE-8B 52500 ECCS AREA 2-HVE-10A RAB Exhaust 105625 Fan ¶4 SCFM 2-HVE-10B 105625 2-HVE-9A 33000 (Add) Plant Vent Total = 2-HVE-9B 33000 D. Enter total pathway SCFM in the table below (Step 4) in the column labeled "SCFM".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 45 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2A RELEASE RATE DATA UNIT 2 GRAB SAMPLING (Page 8 of 23) (Page 2 of 4)

NOTE Chemistry Grab Sample results can be obtained from the TSC Chemistry Supervisor or TSC Dose Assessor.

3. Enter GRAB SAMPLE DATA:

A. Enter grab sample assay results for Gross Noble Gas pCi/cc concentration in the table below (Step 4) in the column labeled "pCi/cc".

B. Enter grab sample assay results for DEQ lodine-131 pCi/cc concentration in the table below (Step 4) in the column labeled "pCi/cc".

1. If DEQ Iodine-131 pCi/cc concentration is unavailable, perform Step 4 for Noble Gas concentration only.

4. Determine UNIT 2 RELEASE RATE:

A. Complete the table below:

(pCi/cc x SCFM x factor = Ci/sec)

Pathway TYPE pCi/cc 114 SCFM factor Noble Gas, Ci/sec Iodine, Ci/sec J I- I. -

Noble Gas Plant Vent 4.72 E -04 Iodine 1-4 4-11 Noble Gas Fuel Bldg. 4.72 E-04 Iodine 11 Noble Gas ECCS-A 33,000 4.72 E -04L Iodine 11 Noble Gas ECCS - B 33,000 4.72 E -04 Iodine

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 46 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2A RELEASE RATE DATA UNIT 2 GRAB SAMPLING (Page 9 of 23) (Page 3 of 4)

4. (continued)

B. If DEQ lodine-131 grab sample results are not available, Then estimate the Iodine Release Rate by:

1. Select Iodine Factor based on current Accident Type and Release Pathway.

PATHWAY LOCA SGTR MSLB WASTE GAS FUEL CASK DTR HANDLING DROP Plant Vent 0.01 1. E-06 1.0 4. E-05 0.04 1.3 ECCS 0.01 0 0 0 0 0 Fuel Bldg. 0 0 0 0 0.04 1.3 Steamline 0 1. E-03 0 0 0 0

2. Enter Gross Noble Gas Ci/sec and Iodine Factor in the following equation and perform the calculation.

x Gross Noble Gas Iodine Factor DEQ Iodine 131 Ci/sec Ci/sec

3. Enter DEQ Iodine 131 Ci/sec in the appropriate column in the table in Step 5.

5. Determine the SITE RELEASE RATE:

A. Complete the table below:

Noble Gas, Ci/sec I Iodine, Cilsec Total the Unit 2 release rates determined above IF Unit 1 is AFFECTED, enter its release rates Add A and B to obtain the SITE RELEASE RATES

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 47 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2A RELEASE RATE DATA UNIT 2 GRAB SAMPLING (Page 10 of 23) (Page 4 of 4)

6. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Grab Sample.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

7. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 2A

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 48 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1B RELEASE RATE DATA UNIT 1 EFFLUENT MONITOR (Page 11 of 23) (Page 1 of 3)

1. Gather ACCIDENT DATA:

A. Date and time of data:

B. Ask Emergency Coordinator:

1. Accident Type-

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2): ho urs

2. Evaluate applicable RELEASE PATHWAY(S):

A. Based on Accident Type, select release pathway in the following table.

B. Check the ON fans.

C. Add up the flows in the spaces provided.

UNIT 1-PLANT VENT UNIT 1-FUEL BUILDING Fan 4on 114 Fan ý/on 14 SCFM SCFM 1-HVE-6A Shield Bldg 6600 1HVE-15 New Fuel 10563 1-HVE-6B 6600 1-HVE-1 6A Fuel Pool 11385 1-HVE-7A H2 Purge 950 1-HVE-1 6B 11385 1-HVE-7B 950 1-HVE-1 7 H&V Room 6250 1-HVE-8A RCB Exhaust 52500 (Add) Fu el Bldg. Total = -

1-HVE-8B 52500 1-HVE-10A RAB Exhaust 92563 ECCS AREA 1-HVE-10B 92563 Fan %4 SCFM (Add) Plant Vent Total = 1-HVE-9A 33000 1-HVE-9B 33000 D. Enter total pathway SCFM in the table below (Step 5) in the column labeled "SCFM".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 49 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 18 RELEASE RATE DATA UNIT 1 EFFLUENT MONITOR (Page 12 of 23) (Page 2 of 3)

3. Enter EFFLUENT MONITOR DATA:

NOTE Attachment 4 provides additional information on effluent monitor selection based on accident type and release pathway.

A. Based on Release Pathway, select applicable Effluent Monitor.

B. Enter monitor data in the table below (Step 5) in the column labeled "DATA".

4. Input IODINE FACTOR:

A. Select Iodine Factor based on current Accident Type and Release Pathway.

PATHWAY LOCA SGTR MSLB WASTE FUEL CASK GAS DTR HANDLING DROP Plant Vent 0.01 1. E-06 1.0 4. E-05 0 0 ECCS 0.01 0 0 0 0 0 "Fuel Bldg. 0 0 0 0 0.04 1.3 Steamline 0 1. E-03 0 0 0 0 B. Enter in the table below (Step 5) in the column labeled "IF".

5. Determine Unit I RELEASE RATE:

A. Complete the table below:

(DATA x SCFM x factor = N.G. Cilsec x Iodine Factor = Iodine Cilsec)

Pathway DATA ¶ SCFM factor Noble Gas, Ci/sec IF Iodine Ci/sec Plant Vent uCi/cc 4.72 E-04 ECCS-A uCi/cc 33,000 4.72 E-04 ECCS-B uCi/cc 33,000 4.72 E-04 Fuel Bldg. uCi/cc 4.72 E-04 Steamline A mr/hr 1.0 1.24 E-02 Steamline B mr/hr 1.0 1.24 E-02

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 50 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 1B RELEASE RATE DATA UNIT I EFFLUENT MONITOR (Page 13 of 23) (Page 3 of 3)

6. Determine the Site Release Rate.

A. Complete the table below:

[Noble Gas, Ci/sec Iodine, Ci/sec Enter the Unit 1 release rates determined from this worksheet IF Unit 2 is AFFECTED, enter its release rates Add A and B to obtain the SITE RELEASE RATES

7. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Effluent Monitor.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

8. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 1B

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 51 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2B RELEASE RATE DATA UNIT 2 EFFLUENT MONITOR (Page 14 of 23) (Page 1 of 3)

1. Gather ACCIDENT DATA:

A. Date and time of data:

B. Ask Emergency Coordinator:

1. Accident Type--

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2): hours

2. Evaluate applicable RELEASE PATHWAY(S):

A. Based on Accident Type, select release pathway in the following table.

B. Check the ON fans.

C. Add up the flows in the spaces provided.

UNIT 2 - PLANT VENT UNIT 2 - FUEL BUILDING IF NOT DIVERTED Fan 4Ion ¶4 Fan '/on V4 SCFM S CFM 2-HVE-6A Shield Bldg 6600 2HVE-15 New Fuel 1:2125 2-HVE-6B 6600 2-HVE-16A Fuel Pool 1:2500 2-HVE-7A H2 Purge 2500 2-HVE-16B 1;2500 2-HVE-7B 2500 2-HVE-17 H&V Room 7'500 2-HVE-8A RCB Exhaust 52500 (Add) Fuel Bldg. Total =__

2-HVE-8B 52500 ECCS AREA 2-HVE-10A RAB Exhaust 105625 Fan 74 S CFM 2-HVE-10B 105625 2-HVE-9A 33000 (Add) Plant Vent Total = 2-HVE-9B 33000 D. Enter total pathway SCFM in the table below (Step 5) in the column labeled "SCFM".

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 52 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2B RELEASE RATE DATA UNIT 2 EFFLUENT MONITOR (Page 15 of 23) (Page 2 of 3)

3. Enter EFFLUENT MONITOR DATA:

I NOTE Attachment 5 provides additional information on effluent monitor selection based on accident type and release pathway.

A. Based on Release Pathway, select applicable Effluent Monitor.

B. Enter monitor data in the table below (Step 5) in the column labeled "DATA".

4. Input IODINE FACTOR:

A. Select Iodine Factor based on current Accident Type and Release Pathway.

PATHWAY LOCA SGTR MSLB WASTE FUEL CASK GAS DTR HANDLING DROP Plant Vent 0.01 1. E-06 1.0 4. E-05 0.04 1.3 ECCS 0.01 0 0 0 0 0 Fuel Bldg. 0 0 0 0 0.04 1.3 Steamline 0 1. E-03 0 0 0 0 B. Enter under "IF" Column in Step 5.

5. Determine RELEASE RATE:

A. Complete the table below:

(DATA x SCFM x factor = N.G. Cilsec x Iodine Factor = Iodine Ci/sec)

Pathway DATA ¶TSCFM factor Noble Gas, Ci/sec IF Iodine Ci/sec Plant Vent uCi/cc 4.72 E-04 ECCS-A uCi/cc 33,000 4.72 E-04 ECCS-B uCi/cc 33,000 4.72 E-04 Fuel Bldg. uCi/cc 4.72 E-04 Steamline A mr/hr 1.0 1.24 E-02 Steamline B mr/hr 1.0 1.24 E-02

REVISION NO.: rPROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 53 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 2B RELEASE RATE DATA UNIT 2 EFFLUENT MONITOR (Page 16 of 23) (Page 3 of 3)

6. Determine the Site Release Rate A. Complete the table below:

Noble Gas, Ci/sec E Iodine, Ci/sec Enter the Unit 2 release rates determined from this worksheet IF Unit 1 is AFFECTED, enter its release rates Add A and B to obtain the SITE RELEASE RATES

7. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Effluent Monitor.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

8. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 2B

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 54 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 3 RELEASE RATE DATA UNIT 1 OR 2 CHRRM (Page 17 of 23) (Page 1 of 3)

NOTE If both units are using this method, then complete one worksheet for each unit.

1. Gather ACCIDENT DATA:

A. Unit # (circle): 1 2 B. Date and time of data: /

C. Ask Emergency Coordinator:

1. Accident Type

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2): hours

2. Obtain CHRRM READING and HOURS SINCE REACTOR TRIP:

A. Highest CHRRM reading:----- R/hr; B. Copy the CHRRM reading in R/hr to Steps 5A and B.

C. Date and Time of Reactor Trip: /

D. Hours Since Reactor Trip: __ hours;

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 55 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 3 RELEASE RATE DATA UNIT 1 OR 2 CHRRM (Page 18 of 23) (Page 2 of 3)

3. Determine CORE FRACTION FACTOR (CF):

A. In the table below, find the CF that corresponds with Hours Since Reactor Trip.

B. Enter CF value in Steps 5A and B.

Hours Since Reactor Trip CF Hours Since Reactor Trip CF 0 5.00 E - 07 > 2.0 to* 4.0 6.25 E - 06

> 0 to*< 0.5 1.00 E - 06 > 4.0 to* 8.0 1.25 E - 05

> 0.5 to: 1.0 1.67 E - 06 > 8.0 2.22 E - 05

> 1.0 to* 2.0 3.33 E - 06

4. Determine NOBLE GAS REDUCTION FACTOR (NGRF):

A. Find NGRF in the table below.

B. Enter it in Step 5A.

Hours Since NGRF Hours Since NGRF Hours Since NGRF Hours Since NGRF Rx Trip Rx Trip Rx Trip Rx Trip 0 1.0 >4to<5 0.44 >9to<10 0.26 > 14to<15 0.16

>0to1 0.90 >5to_<6 0.39 >10to<11 0.23 > 15to_*16 0.16

>1to_<2 0.70 >6to_<7 0.35 >11to<12 0.21 >16to<17 0.14

>2to<3 0.60 >7to<8 0.32 > 12to< 13 0.19 >17to<18 0.14

>3to<4 0.50 >8to<9 0.28 >13to< 14 0.18 >18 0.13

5. Determine RELEASE RATES:

A. Calculate the Noble Gas Release Rate:

R/hr x (CF) x (NGRF) X 40 = Noble Gas Ci/sec B. Calculate Iodine Release Rate:

1. If the Iodine Removal System IS in use, Then Iodine Conversion Value (ICV) = 0.6, If NOT in use, Then ICV = 1.6.

R/hr x (CF) x

(___ (ICV) = __ Iodine Ci/sec

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 56 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 3 RELEASE RATE DATA UNIT 1 OR 2 CHRRM (Page 19 of 23) (Page 3 of 3)

6. Determine the SITE RELEASE RATE:

A. Complete the table below.

Noble Gas Iodine Enter the release rates determined from this worksheet IF the other Unit is AFFECTED, enter its release rates Add A and B to obtain the SITE RELEASE RATES

7. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle CHRRM.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

8. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 3

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 57 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 4 RELEASE RATE DATA UNIT I OR 2 POST LOCA (Page 20 of 23) (Page 1 of 2)

NOTE If both units are using this method, then complete one worksheet for each unit.

1. Gather ACCIDENT DATA:

A. Unit# (circle): 1 2 B. Date and time of data:

C. Ask Emergency Coordinator:

1. Accident Type-

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2): hours

2. Obtain POST LOCA READING:

A. From Unit # , record the Hicqhest POST LOCA reading mRPhr

3. Determine Unit RELEASE RATE:

A. Based on the 2A, find the release rates in the table below.

B. Enter them in Step 4.

Post Loca Noble Gas Iodine Release Rate, (Ci/sec)

Monitor Reading Release Rate with Iodine Removal System (mRPhr) (Ci/sec) In Use Not in Use

< 60 Negligible Negligible Negligible

> 60 < 100 2.0 0.03 0.1

> 100*< 1000 10.0 0.14 0.4

> 1000 40.0 0.60 1.6

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 58 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 4 RELEASE RATE DATA UNIT 1 OR 2 POST LOCA (Page 21 of 23) (Page 2 of 2)

4. Determine the SITE RELEASE RATE:

A. Complete the table below.

Noble Gas Iodine If used, enter the AFFECTED Unit's release rates determined from this worksheet IF the other Unit is AFFECTED enter its release rates Add A and B to obtain the SITE RELEASE RATES

5. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Post LOCA.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

6. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 4

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 59 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 5 RELEASE RATE DATA UNIT I OR 2 DEFAULT (Page 22 of 23) (Page 1 of 2)

H CAUTION Use this method only if there is no data to use in other methods.

1. Gather ACCIDENT DATA:

A. Unit# (circle): 1 2 B. Date and time of data: /

C. Ask Emergency Coordinator:

1. Accident Type--

2. Is core overheating or melting (circle): YES NO

a. If YES, PF = 4.4; If NO, PF = 1.0

b. Enter PF =

3. Potential DURATION of release (if unknown, use 2): hours

2. Determine the SITE RELEASE RATE:

A. For the accident type, select and circle the Noble Gas and Iodine Release Rates in the table below.

Accident Type Default Release Rates, Ci/sec Duration Noble Gas Iodine LOCA WITHOUT 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 37 1.6 Iodine Removal System in use LOCA WITH 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 37 0.6 Iodine Removal System in use Steam Generator Tube Rupture 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2.0 4.0 E - 05 Main Steam Line Break 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.04 0.01 Fuel Handling 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 11 4.0 E - 03 Cask Drop 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2.0 0.03 Waste Gas Decay Tank Rupture 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2.0 2.0 E - 06

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 60 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 8 DATA SHEET 5 RELEASE RATE DATA UNIT 1 OR 2 DEFAULT (Page 23 of 23) (Page 2 of 2)

2. (continued)

B. Complete the table below.

Noble Gas Iodine Enter the release rates determined from this worksheet IF the other Unit is AFFECTED enter its release rates Add A and B to obtain the SITE RELEASE RATES

3. Enter the SITE RELEASE RATES in the selected DOSE CALCULATION WORKSHEET:

A. On line C, circle Default.

B. Enter the NOBLE GAS RELEASE RATE into line 8.

C. Enter the IODINE RELEASE RATE into line 1.

D. Enter the DURATION (if 2 affected units, use longest) into line 6.

E. Enter the PF (Particulate Factor) (if 2 affected units, use largest) into line 11.

4. This data sheet is completed, follow the instructions on the DOSE CALCULATION WORKSHEET.

END OF DATA SHEET 5 END OF ATTACHMENT 8

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 61 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 1 (Page 1 of 10) Stability Class = A Seabreeze = YES A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors---

B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: ______

Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Cilsec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 2.3E+04 8.11E+03 2.3E+03 8.0E+02 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mremI line Instructions for TOTAL DOSES (TEDE) 1 mile 2 miles 5 miles 10 miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Nobel Gas Dose Factors 5.0 2.6 0.73 0.26 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL DOSE (TEDE), mrem I IPAR T

19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose Calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 1

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 62 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 2 (Page 2 of 10) Stability Class = A Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA I NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: I Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 3.8E+03 1.8E+03 7.9E+02 4.OE+02 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mrem line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 0.82 0.57 0.25 0.13 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mremn 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 2

REVISION NO.: PROCEDURE TITLE:

6 OFF-SITE DOSE CALCULATIONS PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WC )RKSHEET3 (Page 3 of 10) Stability Class = B Seabreeze = YES A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA I NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: /

Follow the instructions to calculate doses @ 5_______

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles i 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 3.0 E +04 1.1 E +04 3.0 E +03 1.1 E +03 ___

5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTEDTI I I PAR THYROID DOSE (CDE), mrem III____

line Instructions for TOTAL DOSES (TEDE) 1 M~ile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 9.6 3.4 0.97 0.36 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL I I I PAR DOSE (TEDE), mrem I I II 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 3

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 64 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 4 (Page 4 of 10) Stability Class = B Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA I NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: - - ___

Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 2.3E+04 6.OE+03 1.1E+03 5.7E+02 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hrI_

6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mrem I I7 line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 7.4 1.9 0.36 0.18 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 4

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 65 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 5 (Page 5 of 10) Stability Class = C Seabreeze = YES A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: /

Follow the instructions to calculate doses c*

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 6.0 E + 04 1.7 E + 04 3.9 E + 03 1.5 E + 03 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PAR PROJECTED THYROID DOSE (CDE), mrem line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 19.0 5.3 1.2 0.48 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 5

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 66 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 6 (Page 6 of 10) Stability Class = C Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors___

B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: /

Follow the instructions to calculate doses c*

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 6.0E+04 1.7E+04 3.3E+03 9.5E+02 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mrem line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 19.0 5.3 1.0 0.30 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 6

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 67 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 7 (Page 7 of 10) Stability Class = D Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: /

Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 1.7E+05 6.OE+04 1.7E+04 5.7E+03 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hrI 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mrem I line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 53.0 19.0 5.3 1.8 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 7

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 68 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 8 (Page 8 of 10) Stability Class = E Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors_____

B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: /

Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 1 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 3.OE+05 1.2E+05 3.8E+04 1.4E+04 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mrem line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 94.0 39.0 12.0 4.5 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 8

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 69 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 9 (Page 9 of 10) Stability Class = F Seabreeze = NO A. Enter Meteorological Summary Data:

Unit Wind Direction From ____ Affected Sectors---

B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: I Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 5.3 E +05 2.5 E +05 7.9 E +04 3.5 E +04 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED I I I PAR THYROID DOSE (CDE), mrem I I I line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 1 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble GasDose Factors 1.7E+02 7.8E+01 2.5E+01 1.1 E+01 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE r SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTALOI I I PAR 9DOSE (TEDE), mrem C { _doeiO R 19 Forward this worksheet (or a copy) to the Emergency Coordinator f{EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 9

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 70 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 9 MANUAL DOSE CALCULATION WORKSHEET 10 (Page 10 of 10) Stability Class = G Seabreeze = NO AL. Enter Meteorological Summary Data:

Unit Wind Direction From Affected Sectors B. Circle Meteorological Data Source(s) used:

ERDADS / Tower NOAA / NWS Default C. Circle Release Rate Method used: (if dual unit, then indicate Method for each unit)

Grab Sample Effluent Monitor CHRRM POST LOCA Default Attachment 10 / 12 D. Date and time of data from release rate determination: I Follow the instructions to calculate doses @

line Instruction for THYROID DOSES (CDE) 1 Mile 2 Miles 5 Miles 10 Miles 1 Enter the IODINE RELEASE RATE, Ci/sec SNF 2 Enter the WIND SPEED, mph SNF 3 Divide line 1 by line 2 4 Iodine Dose Factors, 9.1E+05 4.7E+05 1.8E+05 7.9E+04 5 Multiply line 3 by line 4 to obtain THYROID SNF DOSE RATE (CDE), mrem/hr 6 Enter DURATION of release, hours SNF 7 Multiply line 5 by line 6 to obtain PROJECTED PAR THYROID DOSE (CDE), mremI line Instructions for TOTAL DOSES (TEDE) 1 Mile 2 Miles 5 Miles 10 Miles 8 Enter NOBLE GAS RELEASE RATE, Ci/sec SNF 9 Enter WIND SPEED from line 2, above 10 Divide line 8 by line 9 11 Enter the PARTICULATE FACTOR 12 Multiply line 10 by line 11 13 Noble Gas Dose Factors 2.9E+02 1.5E+02 5.7E+01 2.5E+01 14 Multiply line 12 by line 13 15 Enter (Line 5 multiplied by 0.04) 16 Add line 14 and 15 to obtain TOTAL DOSE SNF RATE (TEDE), mrem/hr 17 Enter DURATION from line 6, above 18 Multiply line 16 by line 17 to obtain TOTAL PAR DOSE (TEDE), mrem 19 Forward this worksheet (or a copy) to the Emergency Coordinator {EOF HP Manager if done in EOF}

E. Dose calculations completed; continue monitoring releases and assessing doses.

END OF WORKSHEET 10 END OF ATTACHMENT 9 I

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 71 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 1 of 6)

1. Purpose This attachment provides methods for TSC and/or EOF Dose Assessment personnel to define release rates from a containment burp and includes NRCs RTM-91 methods for estimating dose rates based on plant/reactor conditions.

2. Discussion A. A containment burp is any suspected release from the containment that may be indicated by a rapid decrease of the containment pressure or rapid decrease in the Containment High Range Radiation Monitor that is determined, by operations or engineering, not due to changes in equipment operation (e.g., additional containment spray, additional containment coolers, etc.).

B. It must be remembered and understood that the methodology provided in this appendix includes conservative assumptions and is intended to provide the means to estimate an upper bound to the release, not an exact release rate.

3. Contents Section 1: Provides guidance in estimating release rates during a LOCA resulting from rapid containment depressurizations; that is, an unmonitored burp release. The guidance is further sub-divided into three cases:

Case 1 - Rapid decrease in CHRRM reading during burp Case 2 - No change in CHRRM reading during burp Case 3 - Increase in CHRRM reading during burp Section 2: Provides guidance in estimating doses based on plant/reactor conditions following the methodology in NRC RTM-91.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 72 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 2 of 6)

4. Basis Section 1:

Assumes CHRRM is responding only to Noble Gases Assumes Curies in (from core) < < Curies lost 2 E + 06 R/hr = 100% Core Inventory of Noble Gas (1 + CFT=O' CF from EPIP-09) 6.43 E + 08 Curies of Noble Gas is 100% Core Inventory (PSL2 UFSAR) 322 = 6.43 E + 08 Curies - 2 E + 06 R/hr Section 2:

NRC's Response Technical Manual RTM-91 Vol. 1, Rev. 1, pg. C-2.

5. Percent Mass Loss A. Use Attachment 11, Estimate of Containment "% Mass Loss", to determine the values required in the following calculations.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 73 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 3 of 6)

Section 1 - Case 1: Rapid Decrease in CHRRM Reading (Applicable to Unit 1 or Unit 2)

NOTE

1. A CHRRM drop of about 3 percent per hour may be due to radiological decay.

2. The CHRRM may drop by as much as 10 percent very quickly if containment spray is actuated due to Iodine washout.

1. Enter date and time of data:

2. Calculate Delta-CHRRM:

Start CHRRM End CHRRM = Delta-CHRRM, R/hr

3. Calculate Duration:

A. Clock Time End - Clock Time Start = Delta-Clock B. Convert Delta-Clock to Delta-Seconds: A sec

4. Estimate Curies Lost:

Delta CHRRM _ x 322 Ci N.G. per R/hr = Noble Gas Curies Lost

5. Estimate Noble Gas Release Rate (loss rate):

Noble Gas Curies lost + A sec = Noble Gas Ci/sec

6. Estimate the Iodine Release Rate:

N.G. Ci/sec x 0.01 (Iodine Factor) = Iodine Ci/sec

7. Utilize the current meteorological conditions and appropriate Dose Calculation Worksheets or enter as Direct if using the computer, to estimate Offsite Doses.

END OF CASE 1

PROCEDURE TITLE:

REVISION NO.:

NO.: PROCEDURE TITLE:

PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 4 of 6)

Section 2 - Case 2: Constant CHRRM Reading (Applicable to Unit 1 or Unit 2)

NOTE Engineering may be requested to evaluate the percent mass lost in the burp.

1. Enter date and time of data: I

2. Estimate Noble Gas Curies in the containment:

CHRRM R/hr x 322 Ci N.G. per R/hr = Noble Gas Curies in can

3. Calculate Duration:

A. Clock Time End - Clock Time Start = Delta-Clock B. Convert Delta-Clock to Delta-Seconds: A sec

4. Estimate Curies Lost:

A. Determine "% Mass Loss" (Attachment 11)

B. N.G. Curies in can x % mass lost - 100 = Noble Gas Curies lost

5. Estimate Noble Gas Release Rate (loss rate):

Noble Gas Curies lost Asec = Noble Gas Ci/sec

6. Estimate the Iodine Release Rate:

N.G. Ci/sec x 0.01 (Iodine Factor) = Iodine Ci/sec

7. Utilize the current meteorological conditions and appropriate Dose Calculation Worksheets or enter as Direct if using the computer, to estimate Offsite Doses.

END OF CASE 2

REVISION NO.: PROCEDURE TITLE:

6 OFF-SITE DOSE C PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT I

ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 5 of 6)

Section 1 - Case 3: Increasing CHRRM Reading (Applicable to Unit I or Unit 2)

1. Enter date and time of data: -

2. Calculate average CHRRM reading (Start CHRRM __ + End CHRRM _ )-+2= Avg CHRRM, R/hr

3. Estimate Noble Gas Curies in the containment:

Avg. CHRRM R/hr x 322 Ci N.G. per R/hr = Noble Gas Curies in cAan

4. Calculate Duration:

A. Clock Time End - Clock Time Start = Delta-Cloc k B. Convert Delta-Clock to Delta-Seconds: _ A sec

5. Estimate Curies Lost:

A. Determine "% Mass Loss" (Attachment 11)

B. N.G. Curies in can __ x % mass lost - 100 = __ Noble Gas C3uries lost

6. Estimate Noble Gas Release Rate (loss rate):

kI--LIA #"*--A /'=*:I^^^

Noble Gas Curies lost + A sec = rNoble Gas C, sec

7. Estimate the Iodine Release Rate:

N.G. Ci/sec -_-_ x 0.01 (Iodine Factor) = Iodine Ci/sec

8. Utilize the current meteorological conditions and appropriate Dose Calculation Worksheets or enter as Direct if using the computer, to estimate Offsite Doses.

END OF CASE 3

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 76 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 10 RESPONDING TO AN UNMONITORED CONTAINMENT BURP (Page 6 of 6)

SECTION 2 (Applicable to Unit I or Unit 2)

Use this method IF there is not radiological data (e.g., CHRRM, containment grab sample, etc.) AND the accident has progressed past gap failure AND the containment has undergone catastrophic failure (e.g., know there should be pressure and there is none).

NOTE The following method provides DOSES, not release rates. Doses based on stability class D and four m.p.h. wind speed.

REACTOR ACCIDENT CONSEQUENCE OVERVIEW Containment Leakage Acute Dose (rem) 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Core Containment Mitigating System Release @ 1 mile(B)

Condition Status Status (A) WB THY Early total No Mitigation 1000+ 105+

Mitigated 250 104 Failure (< 1 hr)

MELT Release Late total failure N/A 250 104 FromCore (2 - 12 hr) 4500OF Major Leakage N/A 10 103 (100% / day)

Design leakage N/A 10-2 1 No Mitigation 50 104 Early total Failure (< 1 hr) Mitigated 10 103 Gap Release Late total failure N/A From Core (2 - 12 hr) N/A 5 1500OF Major Leakage N/A 10-1 10 (100% / day)

N/A 10-4 10-2 Design Leakage Notes: (A) Sprays, filters (B) 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months cloud immersion and inhalation plus 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of ground shine END OF SECTION 2 END OF ATTACHMENT 10

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 77 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 11 12 ESTIMATE OF CONTAINMENT "% MASS LOSS" (Page 1 of 2)

(Applicable to Unit 1 or Unit 2)

1. Purpose The purpose of this calculation is to provide a method to estimate containment %

mass release to the environment during a post-LOCA containment depressurization transient (containment "burp").

2. Discussion A. The scope of this calculation is St. Lucie Units 1 and 2.

B. The dose assessment group can use the containment mass release data to estimate the radiation release to the environment (using Attachment 4, TSC/EOF Dose Assessment Guidance for Responding to an Unmonitored Containment Burp) provided the containment radiological conditions are known.

C. The containment de-pressurization event should be large (greater than 5.0 psi change), over a short period of time since the methodology does not accurately credit the effect of containment heat removal systems.

3. Acquire the following data:

NOTE The "time span" for data observation should be the same as used for the calculation on Attachment 4, Case 2 or 3.

A. Containment Pressure just before blowdown transient: psig {Pstart}

B. Containment Temperature just before blowdown transient:_ deg F {Tstart}

C. Containment Pressure just after blowdown transient:- psig {Pend}

D. Containment Temperature just after blowdown transient:_ deg F {Tend}

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 78 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 11 ESTIMATE OF CONTAINMENT "% MASS LOSS" (Page 2 of 2)

(Applicable to Unit 1 or Unit 2)

4. Estimate Initial Containment Atmosphere Density:

144 x (14.7 + ..... Pstar)

Initial Density 53.3 x (460 + ..... Tsta.)

5. Estimate End Containment Atmosphere Density:

144 x (14.7 + ..... Pend)

End Density 53.3 x (460 + ..... Tend )

6. Estimate % Mass Lost:

C1minus . End Density tDeny)j X100 o % mass lost END OF ATTACHMENT 11

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 79 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 12 FIELD TEAM MEASUREMENTS ASSESSMENT (Page 1 of 3)

¶3 This attachment provides methods to estimate a release rate from Field Monitoring Team survey meter measurements and provides guidance on comparing field measurements to dose projections.

NOTE Survey meter Gamma (closed window) results must be from plume centerline; that is, the maximum value from a lateral transverse of the plume.

1. DATE: , TIME:____, Unit:

2. If the survey meter measurement was at 1 mile value, Then go to Step 4.

3. Estimate the 1 mile value:

Estimated 1 mile value = Survey meter results x (downwind distance, miles)z Where the exponent Z = 2 for Stability Class A, B 1.5 for Stability Class C, D 1.0 for Stability Class E, F, G

__ _(Z)

= Estimated Dose Rate @ 1 mile mr/hr meter results mr/hr x Ldownwind distance (miles)

4. For the meteorological conditions at time of sampling, select the Dose Calculation Worksheet (DCW).

A. Use Wind Speed in Miles Per Hour, mph B. Copy from Line 13, the 1 mile Dose factor as the DF for use in Step 5.

5. Estimate Noble Gas Release Rate: Estimated 1 mile mr/hr + DF x Wind Speed x __ mph =mr/hr __Noble Gas Ci/sec DF

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 80 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 12 FIELD TEAM MEASUREMENTS ASSESSMENT (Page 2 of 3)

6. Estimate Iodine Release Rate (IF = Iodine Factor, see the affected units' Effluent Monitor Worksheet):

N.G. Ci/sec x --- (IF) = Iodine (131 Deq) Ci/sec

7. Utilize the current meteorological conditions and appropriate Dose Calculation Worksheets, or enter release rates as Direct if using the computer, to estimate Offsite Doses from this attachment.

Comparing Field Measurements To Dose Proiections NOTE

1. "Reasonable comparison" between Field Measurements & Dose Calculations is if the two are within an order of magnitude. Too many assumptions preclude better precision.

2. A survey team measurements 'off centerline' will yield a low estimated release rate. The Field Monitoring Coordinator (EOF) has a method for estimating centerline values for these situations.

Survey Meter DDE Readings The computerized dose calculation program estimates the 'survey meter reading' DDE and for the pre-designated sampling locations (refer to Field Survey Map for descriptions of the locations). This Survey Meter Estimate is sum of immersion in plume of Noble Gas, and plume shine from iodine & particulates. The noble gasses are the majority of the exposure source. The program adjusts for gap versus core mix of noble gasses in response to the Core Damage Situation question.

The manual method does not calculate a DDE from immersion in noble gas.

Referring to a Dose Calculation Worksheet apropos to the met conditions, a value could be estimated by multiplying the value calculated on line 10 by the Dose Factors listed on line 13. These Dose Factors are based on a core mix of noble gasses, and include the X/Q for the prevailing meteorological conditions.

REVISION NO.: PROCEDURE TITLE: PAGE:

6 OFF-SITE DOSE CALCULATIONS 81 of 81 PROCEDURE NO.:

EPIP-09 ST. LUCIE PLANT ATTACHMENT 12 FIELD TEAM MEASUREMENTS ASSESSMENT (Page 3 of 3)

Thyroid CDE Thyroid dose projections, both procedure & computer, are based on a release of 1-131 Deq Ci/sec. The field teams measure 1-131 in the plume; their procedure has a time dependent factor to account for the dose from the other iodines. The factor starts at about 1.4 and decays to 1 (one) over about 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Dividing projected thyroid dose rate, mr/hr by 1.3 E + 9 will estimate the Iodine 131 (Deq) concentration uCi/cc.

Time of Sample v. Time of Release Time of field measurement minus (downwind distance, miles / wind speed, m.p.h.) will yield the 'time' of the release rate estimated. The computerized calculations use a time window 15 or 30 minutes long. Select the latest printout that has a Release Observation Time before the time estimated above.

Estimating Dose Rates Or Concentrations At Other Distances (e.g., 1, 2, 5, 10 miles)

Estimated Value @ Dist x = Measured value times (DWD/Dist x)z Where: DWD = Measurement downwind distance, miles Dist x = other distance, miles Z = exponent based on stability class (ref EPA-520 Rev. 6/79, page 5.10.)

END OF ATTACHMENT 12 f

a Entergy Operations, Inc.

1448 S.R. 333 "Entergy Russellville, AR 72802 Tel 501 858 5000 0CAN020201 February 15, 2002 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Arkansas Nuclear One - Units 1 and 2 Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6 Monthly Operating Report

Dear Sir or Madam:

Arkansas Nuclear One (ANO), Units 1 and 2 Technical Specifications 6.12.2.3 and 6.9.1.6, respectively, require the submittal of a Monthly Operating Report. The purpose of this letter is to complete the reporting requirement for January 2002. Also, in accordance with ANO Units 1 and 2 Technical Specifications 6.12.2.4 and 6.9.1.5.c, respectively, and NUREG-0737, Item 11.1.3.3, attached is the 2001 Annual Report of Failures and Challenges to Pressurizer Safety Valves.

Sincerely, Glenn R. Ashley Manager, Licensing GRA/SLP Attachment

0CAN020201 Page 2 cc: Mr. Ellis W. Merschoff Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. William D. Reckley MS 0-7 D1 Washington, DC 20555-0001 U. S. Nuclear Regulatory Commission Attn: Mr. Thomas W. Alexion MS 0-7 D1 Washington, DC 20555-0001

OPERATING DATA REPORT DOCKET NO. 50-313 UNIT NAME Arkansas Nuclear One - Unit I DATE February 15, 2002 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 REPORTING PERIOD: January 2002

1. Design Electrical Rating (MWe-Net): 850

2. Maximum Dependable Capacity (MWe-Net): 836 MONTH YR-TO-DATE CUMULATIVE

3. Number of Hours Reactor Was Critical 744.0 744.0 185,345.4

4. Number of Hours Generator On-Line 744.0 744.0 182,689.2

5. Unit Reserve Shutdown Hours 0.0 0.0 817.5

6. Net Electrical Energy Generated (MWh) 641,938 641,938 139,893,647 UNIT SHUTDOWNS Type Method F: Forced Duration of Cause & Corrective Action No. Date S: Scheduled (Hours) Reason' Shutting Comments Down2 None

SUMMARY

The Unit operated the entire month at full power.

Note: There were no challenges to the primary system code safeties nor automatic actuations of the electromatic relief valve during the year 2001 reporting period.

I 2 Reason: Method:

A Equipment Failure (Explain) 1 Manual B Maintenance or Test 2 Manual Trip/Scram C Refueling 3 Automatic Trip/Scram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

OPERATING DATA REPORT DOCKET NO. 50-368 UNIT NAME Arkansas Nuclear One - Unit 2 DATE February 15, 2002 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 REPORTING PERIOD: January 2002 I1. Design Electrical Rating (MWe-Net): 912

2. Maximum Dependable Capacity (MWe-Net): 858 MONTH YR-TO-DATE CUMULATIVE

3. Number of Hours Reactor Was Critical 744.0 744.0 154,377.3

4. Number of Hours Generator On-Line 744.0 744.0 151,880.5

5. Unit Reserve Shutdown Hours 0.0 0.0 0.0

6. Net Electrical Energy Generated (MWh) 692,417 692,417 128,880,527 UNIT SHUTDOWNS Type Method F: Forced Duration of Cause & Corrective Action No. Date S: Scheduled (Hours) Reason' Shutting 2 Comments

_ _Down None

SUMMARY

The Unit began the month at full power. On 01/26/2002, power was reduced to

-96% to perform an on-line modification to the Heater Drain Pump. The Unit operated at

-96% power for the remainder of the month.

Note: There were no challenges to the primary system code safeties nor automatic actuations of the low temperature overpressure protection valves during the year 2001 reporting period.

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test 2 Manual Trip/Scram C Refueling 3 Automatic Trip/Scram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

L-2002-028, Revision 8 to EPIP-09, Off-Site Dose Calculations.

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