ML021560440

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Revision 13, P1 to EPIP-4-08, Initial Offsite Release Assessment.
ML021560440
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 05/15/2002
From: Heacock D
Virginia Electric & Power Co (VEPCO)
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
02-314
Download: ML021560440 (28)
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Text

VIRGINIA, ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 May 15, 2002 U.S. Nuclear Regulatory Commission Serial No.02-314 Attention: Document Control Desk NAPS/MPW Washington, D.C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 Gentlemen: NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 REVISION TO EMERGENCY PLAN IMPLEMENTING PROCEDURE Pursuant to 10 CFR 50.54(q), enclosed is a recent change to a North Anna Power Station Emergency Plan Implementing Procedure. The change does not implement actions that decrease the effectiveness of our Emergency Plan. The Emergency Plan and Implementing Procedures continue to meet the standards of 10 CFR 50.47(b).

Please update your manual by performing the actions described in Attachment 1, Tabulation of Changes.

Very truly yours, D. A. Heacock Site Vice President Commitments Stated or Implied: None.

Enclosures cc: U.S. Nuclear Regulatory Commission (2 copies)

Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, GA 30303 Mr. M. J. Morgan NRC Senior Resident Inspector North Anna Power Station

ATTACHMENT 1 TABULATION OF CHANGES VIRGINIA ELECTRIC AND POWER COMPANY REVISION TO NORTH ANNA POWER STATION EMERGENCY PLAN IMPLEMENTING PROCEDURE Enclosed is a recent change to a North Anna Power Station Emergency Plan Implementing Procedure (EPIP). Please take the following actions in order to keep your manual updated.

Note: The change affects Attachment 6.

Emergqency Plan Privacy and Proprietary Material has been removed. Reference Generic Letter No. 81-27.

5Dominion- - ProcedureAction Request (PAR)

FVPA-050 -sA-ttc n 2*ge I o1l Instructions for comp 1.'orth Procedure Number Anna) EPIP-4.08 Procedure Title Initial Offsite Release Assessment

8. Type of Request I j

[ I New Procedure [x] Procedu Deletion [ I Vendor Procedure

9. Reason and Description of Change (07-99-006, Ventilation Radiation Monitoring System Replacement.) Permanent Change (P 1).

Replace Kaman monitor conversion factors with MGPI conversion factors in Attachment 6, % Technical Specification Worksheet. For Process Vent normal range GW-1 78-1, replace 5.06 E-5 with 6.57 E-5 for converting giCi/sec reading and replace 2.39 E-2 with 3.10 E-2 for converting j+/-Ci/cc reading) and for Vent Vent A normal range VG-1 79-1 (replace 5.46 E-4 with 4.41 E-4 for converting g.Ci/sec reading and replace 2.58 E-1 with 2.08 E-1 for converting liCi/cc reading).

Add MGPI conversion factors for Vent Vent B VG-1 80-1 in Attachment 6, % Technical Specification Worksheet: add 5.02 E-4 for 1 SNS Aproa. Detemintio i -"Ys to an

. of th folwig S C aproa reuie. *Chc ite 25 an ski -tm4thog0

10. Is this request for a new procedure or does this change need an existing Regulatory Evaluation? [ I Yes [x] No
11. Does this change involve a Temporary Modification as defined in VPAP-1403? [ ] Yes [x] No
12. Does this change result in a "Yes"answer to any questions on the Safety Review/Regulatory Screen (VPAP-3001, Form No. 730486) that requires a Regulatory Evaluation (VPAP-3001, Form No. 730916)? [ Yes [x] No
13. Is this a "Special Test" procedure, an EPIP or Security procedure, an EOP, or CH-94.300, [x] Yes [ ] No or is it an ICCE-designated procedure that requires a Safety Review/Regulatory Screen?
14. A procedure deletion. (JYes []NO 9.£ A change to any of the following:

]Purpose [ ] Acceptance Criteria or Tolerances [ ] Deletion of Step Verification (IVor SV)

] Initial Conditions [ ] Scaling or Setpoints [ ] System/Component As-Left Condition(s) [ ] Yes [ ] No

] The method for meeting a commitment identified in the procedure

16. A change that adds or delete a subsection, adds an alternative method for performing a task, involves a less [ ] Yes [ ] No conservative method for performing a task, or affects equipment qualification.
17. A change that decreases personnel safety or fire protection effectiveness. [ ] Yes [ ]No

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18. A change that relocates or deletes a hold point. [ ] Yes [ ]No
19. A change to CAUTION or WARNING statements. This does not include adding CAUTION or WARNING Yes ]NO statements.
20. A change to a procedure that is marked "Infrequently Conducted or Complex Test or Evolution". [ ] Yes [ ] No
21. Requestor/Writer (Printed Name) 22. Date 23. Reviewed By (Please Print) 24. Date John B. Costello 4/9/2002 Steven A. Harrison 4/9/2002 If SNSOC approval is required for a Procedure Change, it is not necessary for the Shift Supervisor to approve the Procedure Change.

Place N/A in blocks 30 and 36.

R ei Aprv Auhoit D - F Above

[x] 25. SNSOC [ ] 26. Cognizant Management B [ ] 27. Cognizant Management A r P -. - A oC - D Ann P Apr. N

28. Required Approval Authority (Signature) 29 Date Aority (Signature) 35 Date NIA N/A

"* Shift Supervisor Approval For Changes (Signature) 31. Date 6. Shift Supervisor Approval For Changes (Signature) Date N/A CA N/A

32. Site Vice President Approval ifRequired (Signature) 33. Date Site Vice Presid nt pp val If Required (Signature) 39. Date iNA N/A L IL IKey: SNSOC - Station Nuclear Satety ana uperaung Committee; ,PIr-lmergeney P'lan Implemenurn r-ro1.urUM; orm 0.  %

EOP-Emergency Operating Procedure; PAR-Procedure Action Request; SPS-Surry Power Station; NAPS-North Anna Power Station

VIRGINIA POWER NORTH ANNA POWER STATION EMERGENCY PLAN IMPLEMENTING PROCEDURE NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 (With 6 Attachments) PAGE 1 of 15 PURPOSE Use backup (manual) dose assessment calculations to assess consequences of actual or potential offsite releases.

ENTRY CONDITIONS Any of the following:

1. Entry from EPIP-4.01, RADIOLOGICAL ASSESSMENT DIRECTOR CONTROLLING PROCEDURE.
2. Entry from EPIP-4.03, DOSE ASSESSMENT TEAM CONTROLLING PROCEDURE. I
3. Direction by the Station Emergency Manager.
4. Direction by the Radiological Assessment Director or Radiological Assessment Coordinator.

Approvals on File I

Effective Date

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 2 of 15 ACTION/EXPECTED RESPONSE I-]

I l

RESPONSE NOT OBTAINED F-I 1 INITIATE PROCEDURE:

  • By:

Date:

Time:

NOTE:

  • No release is assumed from the air ejector if it is diverted to containment.
  • No release is assumed from the AFWPT pathway if the AFWPT is isolated.
  • Results of dose rate calculations are additive if release is through independent pathways.

9 Results of releases from the same pathway are not additive.

2 DETERMINE SITE BOUNDARY DOSE RATES IF release is through the Main (mrem/hr) FOR VENTILATION RELEASE: Steam System, THEN GO TO Step 3.

a) Ask SEM to have an individual OR observe monitor in alarm and report increase or decrease in IF release is from containment readings leakage, THEN GO TO Step 4.

(STEP 2 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 3 of 15 ACTION/EXPECTED RESPONSE F- RESPONSE NOT OBTAINED H-2 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR VENTILATION RELEASE: (Continued)

CAUTION: During implementation of Design Change 99-006, Ventilation Radiation Monitoring System Replacement, the user needs to identify whether Kaman or MGPI monitor is being used (for GW-178, VG-179 and VG-180).

NOTE: MGPI Normal Range Noble Gas monitors: 178-1, 179-1 and 180-1.

MGPI High Range Noble Gas monitors: 178-2, 179-2 and 180-2.

b) Get number of monitor in alarm (or monitor of interest):

Release Path Normal Range Kaman (MGPI) High Range (NRC)

Process Vent GW-102 GW-178-1, -2 RM-GW-173 Vent Vent A VG-104 VG-179-1, -2 RM-VG-174 Vent Vent B VG-113 VG-180-1, -2 RM-VG-175 Air Ejector SV-121. 221 c) Circle appropriate monitor number on Attachment 1 (STEP 2 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 4 of 15 ACTION/EXPECTED RESPONSE H-I l I RESPONSE NOT OBTAINED I-2 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR VENTILATION RELEASE: (Continued) d) Get monitor readings, above d) IF flow rates NOT available, background, and flow rates for THEN use default flow rates:

pathway of interest

"*VVA - 142,000 cfm AND

"*VVB - 100,000 cfm Record data on Attachment 1

"*PV - 310 cfm

"*CAE - 25 cfm NOTE:

  • Main Tower Delta T is the preferred source of stability class.

Sigma Theta (Backup Tower) is the secondary source.

  • Primary source of wind speed is the Main Tower Lower Level indicator. Alternates sources are (1) Backup Tower, and (2)

Main Tower Upper Level.

e) Get Stability Class and Wind Speed (from Emergency Communicator, ERFCS, RAD or RAC):

"* Stability Class:

"*Wind Speed:

f) Get X/O and conversion factors from Attachment 4:

"* Site Boundary X/O for Stability Class in effect

"*Monitor Conversion Factor (MCF) based on accident type

"*TEDE DCF

"* THY DCF (STEP 2 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 5 of 15

-LIJ-E ACTION/EXPECTED RESPONSE F-H RESPONSE NOT OBTAINED HI 2 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR VENTILATION RELEASE: (Continued) g) Record X/0, wind speed and conversion factors on Attachment 1 h) Determine Site Boundary TEDE and THY CDE, mrem/hr, using Attachment 1 i) Record results of Attachment 1 on to Attachment 5 3 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR MAIN STEAM RELEASE:

a) Check if actual or potential a) IF NO release through Main release pathway exists through Steam System, THEN GO TO Step 4.

Main Steam Safety Valves or Auxiliary Feedwater Pump Turbine Exhaust (AFWPT) b) Determine number of monitor in alarm:

Unit 1 Main Steam Unit 2 Main Steam RM-RMS-170 (A Safety Valves) RM-RMS-270 (A Safety Valves)

RM-RMS-171 (B Safety Valves) RM-RMS-271 (B Safety Valves)

RM-RMS-172 (C Safety Valves) RM-RMS-272 (C Safety Valves)

Unit 1 AFWPT Unit 2 AFWPT RM-MS-176 RM-MS-276 (STEP 3 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 6 of 15

-ThiEF:

m ACTION/EXPECTED RESPONSE F-  !

RESPONSE NOT OBTAINED 3 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR MAIN STEAM RELEASE: (Continued) c) Get reading of monitor in alarm AND Record reading on Attachment 2 NOTE:

  • Main Tower Delta T is the preferred source of stability class.

Sigma Theta (Backup Tower) is the secondary source.

  • Primary source of wind speed is the Main Tower Lower Level indicator. Alternates sources are (1) Backup Tower, and (2)

Main Tower Upper Level.

d) Get Stability Class and Wind Speed:

"*Stability Class:

"* Wind Speed:

e) Get X/Q and conversion factors from Attachment 4:

"* Site Boundary X/O for Stability Class in effect

"* Monitor Conversion Factor (MCF) based on accident type

"*TEDE DCF

"*THY DCF f) Record X/0, wind speed and conversion factors on Attachment 2 (STEP 3 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 7 of 15 ACTION/EXPECTED RESPONSE F-] l RESPONSE NOT OBTAINED F-l 3 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FOR MAIN STEAM RELEASE: (Continued) g) Ask Operations for the number g) IF none, THEN project release of Main Steam Safety Valves using only ONE valve.

that have lifted or may potentially lift AND Record on Attachment 2 h) Check status of AFWPT isolation (from RAD or RAC) i) Calculate Site Boundary TEDE and THY CDE dose rates using Attachment 2 j) Record results of Attachment 2 on to Attachment 5 4 DETERMINE SITE BOUNDARY DOSE RATES containment leakage not

-IF (mrem/hr) FROM CONTAINMENT LEAKAGE: involved, THEN GO TO Step 5.

(STEP 4 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 8 of 15

-LI1-t ACTION/EXPECTED RESPONSE -II l RESPONSE NOT OBTAINED I

HI 4 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FROM CONTAINMENT LEAKAGE: (Continued) a) GET CHRRMS reading, R/hr AND Record reading on Attachment 3:

Unit 1 Unit 2 RMS-165 RMS-265 RMS-166 RMS-266 NOTE:

  • Main Tower Delta T is the preferred source of stability class.

Sigma Theta (Backup Tower) is the secondary source.

Primary source of wind speed is the Main Tower Lower Level indicator. Alternates sources are (1) Backup Tower, and (2)

Main Tower Upper Level.

b) Get Stability Class and Wind Speed:

"*Stability Class:

"* Wind Speed:

c) Get X/Q and conversion factors from Attachment 4:

"* Site Boundary X/O for Stability Class in effect

"* Monitor Conversion Factor (MCF) based on accident type

"* TEDE DCF

"* THY DCF d) Record X/Q, wind speed and conversion factors on Attachment 3 (STEP 4 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 9 of 15 ACTION/EXPECTED RESPONSE I-I  !

RESPONSE NOT OBTAINED F-4 DETERMINE SITE BOUNDARY DOSE RATES (mrem/hr) FROM CONTAINMENT LEAKAGE: (Continued) e) Calculate Site Boundary TEDE and THY CDE dose rates using Attachment 3 f) Record results of Attachment 3 on to Attachment 5 5 DETERMINE DOSE RATES, mrem/hr, AT 2, 5 AND 10 MILES:

a) Use Attachment 5 b) Add results of appropriate release pathways:

"* Vents - Attachment 1

"*Main Steam Attachment 2

"*Containment Attachment 3 c) Determine Stability Class Correction Factor (top of Attachment 5) for distance of interest d) Use Attachment 5 to do calculations for TEDE and THY CDE, mrem/hr, at 2, 5 and 10 miles e) Report results to RAD or RAC

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 10 of 15

-LJ-t ACTION/EXPECTED RESPONSE F-H RESPONSE NOT OBTAINED F-6 COMPARE SITE BOUNDARY DOSE TO EMERGENCY CLASSIFICATION CRITERIA:

a) Determine Site-Boundary dose rate (sum of all pathways) from Attachment 5:

"* TEDE: mrem/hr

"* THY CDE: mrem/hr b) Determine release duration: b) Use default of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> if hours duration is unknown.

c) Calculate total dose:

TEDE: mrem/hr x -hours = mrem, TEDE THY CDE: mrem/hr x __- hours = mrem, THY CDE d) Compare total dose to emergency classification criteria:

Site Boundary Dose:. Emergency Classification:

S1000 mrem TEDE or General Emergency S5000 mrem Thyroid CDE S100 mrem TEDE or Site Area Emergency S500 mrem Thyroid CDE 7 CHECK IF RESULTS INDICATE A SITE GO TO Step 9.

AREA OR GENERAL EMERGENCY EXISTS

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 11 of 15 ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED H-I

___ 8 INITIATE PROTECTIVE MEASURES:

a) Use EPIP-4.07, PROTECTIVE MEASURES, to determine if any onsite or offsite protective measures are required b) Give the following information to the RAD/RAC:

"* Emergency Classification

"* Calculation results

"* Protective actions required by EPIP-4.07, PROTECTIVE MEASURES c) GO TO Step 12

___ 9 CHECK IF EMERGENCY INVOLVES LIQUID GO TO Note prior to Step 11.

RELEASE

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 12 of 15

-LIJ-E ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED H-10 DETERMINE PERCENT TECHNICAL SPECIFICATION FOR LIQUID RELEASE:

a) Get highest liquid effluent pathway monitor reading:

"* LW-111: cpm

"* SW-130: cpm

  • SW-230: cpm b) Determine number of operating Circ. Water Pumps:

c) Calculate % Tech. Specs.:

LW-111: cpm x 6.26E-3 / # Circ. Water Pumps = % Tech. Specs.

x 6.26E-3 =  %

SW-130 or 230:

cpm x 2.OE-2 -  % Tech. Specs.

x 2.OE-2 d) Compare % Tech. Spec. with emergency classification criteria:

  • Ž 1000% - ALERT
  • < 100% - Within Limits e) Notify SEM (through RAD or RAC) of event classification based on % Tech. Spec. for liquid release

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 13 of 15

-E!Ki-t ACTION/EXPECTED RESPONSE H-I I RESPONSE NOT OBTAINED F-CAUTION: During implementation of Design Change 99-006, Ventilation Radiation Monitoring System Replacement, the user needs to identify whether Kaman or MGPI monitor is being used (for GW-178, VG-179 and VG-180).

NOTE:

  • Evaluation of percent technical specifications makes conservative assumptions about flow rate, isotopic mixture and detector response. Further analysis (following completion of this procedure) will be necessary to quantify release.

e Kaman (MGPI) monitors (iCi/sec and pCi/cc) should be used as the primary indicator for Vent Vent and Process Vent releases.

Westinghouse and NRC monitors may be used as backup.

___ 11 DETERMINE % TECH. SPEC. FOR GASEOUS RELEASE:

a) Determine monitor in alarm b) Circle appropriate monitor number on Attachment 6 c) Ask SEM to position an individual to observe monitor in alarm and report increase or decrease in readings d) Get the highest reading, above background, of monitor in alarm e) Record monitor reading on Attachment 6 (STEP 11 CONTINUED ON NEXT PAGE)

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 14 of 15 ACTION/EXPECTED RESPONSE I-I RESPONSE NOT OBTAINED 11 DETERMINE % TECH. SPEC. FOR GASEOUS RELEASE: (Continued) ow f) Determine flow rate (cfm) f) Use the following default f rates:

AND

"*VVA - 142,000 cfm Record flow rate on Attachment 6

"*VVB - 100,000 cfm

"*PV - 310 cfm

"* CAE - 25 cfm g) Calculate % Tech. Spec. using Attachment 6 h) Calculate total % Tech. Spec.

for all pathways involved (Add the % Tech. Spec. for each monitor/emission channel) i) Compare % Tech. Spec. with emergency classification criteria:

Ž 1000% - ALERT

  • < 100% - Within Limits j) Notify SEM (through RAD or RAC) of event classification based on % Tech. Spec. for gaseous release

NUMBER PROCEDURE TITLE REVISION EPIP-4.08 INITIAL OFFSITE RELEASE ASSESSMENT 13 PAGE 15 of 15 ACTION/EXPECTED RESPONSE F-  !

RESPONSE NOT OBTAINED F-

_ 12 TERMINATE EPIP-4.08:

"*Give completed EPIP-4.08, forms, and other applicable records to the Radiological Assessment Director

"*Completed by:

Date:

Time:

-END-

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 VENT RELEASE SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 1 1 of 3 NOTE: , MGPI Normal Range Noble Gas monitors: 178-1, 179-1 and 180-1. MGPI High Range Noble Gas monitors: 178-2, 179-2 and 180-2.

" Monitor Conversion Factors (MCF) and Site Boundary X/O are provided on Attachment 4.

" VG-174, VG-175 and GW-173 should only be used when KAMAN (MGPI) or Normal Range Monitors are offscale or inoperable.

Date: _; Time:

VENT VENT A:

VG-104: ( CPM x CFM x MCF x X/O ) /WINDSPEED - Value

(_ x x _ x _) /

VG-179: (pCi/sec x 1.OE-3 x MCF x XIO ) / WINDSPEED - Value

( -1, -2)

(__ x 1.OE-3 x x ) / =

VG-179: (pICi/cc x CFM x 4.72E-1 x MCF x X/O ) / WINDSPEED = Value

( -1.-2)

(_x x 4.72E-1 x x ) / =

VG-174: ( mr/hr x CFM x MCF x X/O ) / WINDSPEED - Value

( - x x x _) /

Record highest Vent Vent A value from above on Page 3 of Attachment 1.

VENT VENT B:

VG-113: ( CPM x CFM x MCF x X/O ) / WINDSPEED - Value

(___ x x x ) /__

VG-180: (pCi/sec x 1.OE-3 x MCF x X/0) / WINDSPEED - Value

( -1, -2)

( x 1.OE-3 x x ) /

VG-180: (pCi/cc x CFM x 4.72E-1 x MCF x X/O ) / WINDSPEED = Value

( -1.-2)

( x x 4.72E-1 x x ) / =

VG-175: ( mr/hr x CFM x MCF x X/O ) / WINDSPEED = Value

( - x x x ) /=

Record highest Vent Vent B value from above on Page 3 of Attachment 1.

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 VENT RELEASE SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 1 2 of 3 NOTE:

  • MGPI Normal Range Noble Gas monitors: 178-1, 179-1 and 180-1. MGPI High Range Noble Gas monitors: 178-2, 179-2 and 180-2.

"* Monitor Conversion Factors (MCF) and Site Boundary X/O are provided on Attachment 4.

"* VG-174, VG-175 and GW-173 should only be used when KAMAN (MGPI) or Normal Range Monitors are offscale or inoperable.

PROCESS VENT:

GW-102: ( CPM x CFM x MCF x X/O ) / WINDSPEED Value

_ _ x _ x x ) /I_______

GW-178: (jiCi/sec x 1.OE-3 x MCF x X/O ) / WINDSPEED Value

(-1,-2)

( x 1.OE-3 x x )

GW-178: (giCi/cc x CFM x 4.72E-1 x MCF x x X/Q ) I WINDSPEED Value

(-1,-2) x ___ / _ _ _

( _x x 4.72E-1 x GW-173: ( mr/hr x CFM x MCF x X/O ) / WINDSPEED Value

( - x _ x x )

Record highest Process Vent value from above on Page 3 of Attachment 1.

AIR EJECTOR:

SV-121: ( CPM x CFM x MCF x X/O ) / WINDSPEED Val ue x x x ) /

MCF xIQ ) / WINDSPEED Val ue SV-221: ( CPM x CFM x x

(_________ x x x ) /

TOTAL OF AIR EJECTORS Record sum of Air Ejector values on Page 3 of Attachment 1.

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 VENT RELEASE SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 1 3 of 3

1. Record the following monitor values in left-hand column of table below:

0 Highest Vent Vent A value from Attachment 1 Page 1 0 Highest Vent Vent B value from Attachment 1 Page 1 0 Highest Process Vent value from Attachment 1 Page 2 0 Sum of Air Ejector values from Attachment 1 Page 2

2. Record TEDE and THY CDE Dose Conversion Factors (DCFs) from Attachment 4 in middle and right-hand columns in table below.

_ 3. Multiply monitor values in left-hand column by TEDE DCF and THY CDE DCF atop middle and right-hand columns in table below. Record result(s) in intersecting space.

4. Add resulting values in middle and right-hand columns to calculate Total Vent Release (TEDE and THY CDE).

TEDE DCF from THY CDE DCF from Attachment 4 Attachment 4 HIGHEST VENT VENT A VALUE HIGHEST VENT VENT B VALUE HIGHEST PROCESS VENT VALUE SUM OF AIR EJECTOR VALUES SUM OF VENT VENT, PROCESS VENT AND AIR EJECTORS TEDE mrem/hr THY CDE mrem/hr Completed by:

Date/Time: /

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 MAIN STEAM RELEASE - SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 2 1 of 2 NOTE: Monitor Conversion Factors (MCF) and Site Boundary X/O are provided on Attachment 4.

Date:  ; Time:

UNIT 1 MAIN STEAM:

( mr/hr x # Valves x MCF x X/O ) / WINDSPEED = Val ue MS-170:( x x x ) / =

MS-171:( x x x ) / =

MS-172:( x -x xx ) /

TOTAL OF UNIT 1 MAIN STEAM =

UNIT 1 AFWPT:

( mr/hr x MCF x X/O ) / WINDSPEED = Value MS-176:( x x ) / =

UNIT 2 MAIN STEAM:

( mr/hr x # Valves x MCF x X/O ) / WINDSPEED Value MS-270:( x x x ) / =

MS-271:( x x x ) / =

MS-272:( _ x x x ) I =

TOTAL OF UNIT 2 MAIN STEAM =

UNIT 2 AFWPT:

( mr/hr x MCF x X/O ) / WINDSPEED = Value MS-276:( x x )/ =

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 MAIN STEAM RELEASE - SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 2 2 of 2

1. Record the following monitor values in left-hand column of table below:

"* Total Main Steam value for affected unit

"* AFWPT value for affected unit

2. Record TEDE and THY CDE Dose Conversion Factors (DCFs) from Attachment 4 in middle and right-hand c-olumns in table below.

- 3. Multiply monitor values in left-hand column by TEDE DCF and THY CDE DCF atop middle and right-hand columns in table below. Record result(s) in intersecting space.

4. Add resulting values in middle and right-hand columns to calculate Total Main Steam Release (TEDE and THY CDE) (sum of Main Steam and AFWPT).

TEDE DCF from THY CDE DCF from Attachment 4 Attachment 4 TOTAL OF MAIN STEAM VALUES AFWPT VALUE SUM OF AFFECTED UNIT(s)

MAIN STEAM AND AFWPT TEDE mrem/hr THY CDE mrem/hr Completed by:

Date/Time: Date/Time: /

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 CONTAINMENT RELEASE - SITE BOUNDARY DOSE RATE 13 ATTACHMENT PAGE 3 1 of 1 NOTE: o Monitor Conversion Factors (MCF), Site Boundary X/O, TEDE Dose Conversion Factors (TEDE DCF) and Thyroid CDE Factors (THY DCF) are provided on Attachment 4.

0 The CHRRMS Monitor Conversion Factor is calculated for design leak rate of 0.1% per day.

Date:  ; Time:

CONTAINMENT:

( R/hr x MCF x X/O ) / WINDSPEED = Val ue RMS-165 RMS-166 RMS-265 RMS-266: ( x x ) /

- 1. Record result of calculation above in left-hand column of table below.

- 2. Record TEDE and THY CDE Dose Conversion Factors (DCFs) from Attachment 4 in middle and right-hand columns in table below.

3. Multiply monitor value in left-hand column by TEDE DCF and THY CDE DCF atop middle and right-hand columns in table below. Record result(s) in intersecting space (Total Containment Release (TEDE and THY CDE)).

TEDE DCF from THY CDE DCF from Attachment 4 Attachment 4 CONTAINMENT VALUE TEDE mrem/hr THY CDE mrem/hr Completed by:

Date/Time: /

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 MONITOR CONVERSION FACTORS, 13 ATTACHMENT SITE BOUNDARY X/O VALUES, PAGE TEDE FACTORS, AND THYROID CDE FACTORS PAGE 4

_____________1 of_2 NOTE: Kaman and MGPI Monitor Conversion Factors are provided for use during implementation of Design Change 99-006, Ventilation Radiation Monitoring System Replacement.

MONITOR CONVERSION FACTORS (MCF) for Vent Release (Attachment 1):

MONITOR MSLB SGTR i F FHA ] WGDT i VCT I iLOCA MELTjLOCA GAP i LOCA PC F I I NORMAL I

VG-104 9.7E-8 7.OE-8 ---- - - ------ --------- 4.7E-8 I i F F I i F I l VG-174 2.4E+1 1.8E+1 ------ - ------ - 1.1E+1 II I F F I I F I I i---------------i VG-179-1 (KAMAN) i 9.7E-1 i 9.6E-1 F i F i I 9.5E-I iI-----

VG-179-1 (MGPI) 8.8E-1 8.6E-1 - 8.1E-1 I I F F i F I I VG-179-2 (KAMAN) 8.3E-1 F I 7.4E-1 + i --

i I Fi F 5.9E-1 I

I ----------- F VG-179-2 (MGPI) 1.0E+O F I 1.OE+O + FI I I 1.1E+O I

VG113 - ----- 1.4E-8 ---- ----- I4.OE-I 1 4.3E-8 19E8 1.4E-8 I I + FI I F I I I VG-175 ------ 5.9E+1 i 1.8E+O 1.7E+O j 4.1E+O 5.8E+1 I i +I I F I F i VG-180-1 (KAMAN) - 9.8E-1 j 1.7E+O ------- 1.2E+O 9.8E-1 F l i I I I F i I i VG-180-1 (MGPI) ------ 9.2E-1 ...... 7.9E-1 8.2E-1 8.5E-1 9.2E-1 i I + F I I Fi F I VG-180-2 (KAMAN) 1.OE+O 1.8E-1 - 3.6E-1 1.OE+O FI I I F I F i VG-180-2 (MGPI) 1.OE+O 7.3E+0 6.8E+0 1.5E+O 1.OE+O I I + F I F I F I GW-102 6.1E-8 1.1E-7 ---------- ------ 2.3E-7 i I +I I F I F i GW-173 - 5.OE+1 2.3E+1 - 2.7E+1 i i + F F I I I F I GW-178-1 (KAMAN) - - ----- 9.1E-1 9.8E-1 I.OE+O Fi I + F F I I I -

F i GW-178-1 (MGPI) - - - - 7.7E-1 9.OE-1 - 9.3E-1 Fi I +I F I f I F i GW-178-2 (KAMAN) - 1.IE+O I----- 8.1E-1 - ----- - 8.9E-1 Fi I + F F I F i F I GW-178-2 (MGPI) ... . 1.IE+O 1.OE+O - - 1.1E+O FIF SV-121, -221 3.E4 I 2.2E- I F - I-F --- I - -F iI F 1.4E-4 i

L____I

_________ ____ L +/- ____ ____ I ____ _____ I ____i ___ __

(CONTINUED ON NEXT PAGE)

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 MONITOR CONVERSION FACTORS, 13 ATTACHMENT SITE BOUNDARY X/O VALUES, PAGE TEDE FACTORS, AND THYROID CDE FACTORS 4 2 of 2 MONITOR CONVERSION FACTORS (MCF) for Main Steam Release (Attachment 2):

MONITOR MSLB SGTR LKD. ROTOR NORMAL MS-1(2)70 MS-1(2)71 5.3E+3 6.9E+3 3.9E+2 5.7E+3 MS-1(2)72 MS-176 1.9E+3 4.2E+3 4.3E+2 3.5E+3 MS-276 2.6E+3 5.7E+3 5.6E+2 4.6E+3 MONITOR CONVERSION FACTORS (MCF) for Containment Release (Attachment 3):

MONITOR LOCA MELT LOCA GAP LOCA PC NORMAL RMS-1(2)65 RMS-1(2)66 6.6E-2 6.3E-2 1.OE-1 1.7E-1 X/0, SITE BOUNDARY: STABILITY CLASS A B C D E F G 1.84 E-6 1.65 E-5 5.98 E-5 1.77 E-4 3.46 E-4 7.26 E-4 1.40 E-3 TEDE DOSE CONVERSION FACTORS (TEDE DCF):

THYROID CDE DOSE CONVERSION FACTORS (THY DCF):

MSLB SGTR FHA WGDT LOCA MELT LOCA GAP LOCA PC LKD. ROTOR UNFILTERED 2.6E+4 1.5E+1 7.1E-1 2.SE-5 1.6E+4 4.3E+2 2.4E+2 3.7E+4 FILTERED 7.1E+1 1.5E-1 7.1E-2 2.5E-6 1.6E+3 4.3E+1 2.4E+1 -

NUMBER ATTACHMENT TITLE REVISION EPIP-4.08 DETERMINATION OF 2, 5 AND 10 MILE DOSE RATES 13 ATTACHMENT PAGE 5 1 of 1 I STABILITY CLASS CORRECTION FACTOR I MILES A B C D E F G 2 0.359 0.109 0.234 0.271 0.289 0.331 0.414 5 0.158 0.023 0.0484 0.0678 0.0838 0.0964 0.136 10 0.0815 0.0121 0.0154 0.0249 0.0347 0.0399 0.0564 CALCULATION:

SUM OF TEDE:

ATT. 1:

ATT. 2: l CORRECTION FACTOR TEDE mrem/hr ATT. 3: 2 miles: 2 miles:

SUM:

TEDE DOSE RATE, CORRECTION FACTOR TEDE mrem/hr SITE BOUNDARY x 5 miles: 5 miles:

mrem/hr CORRECTION FACTOR TEDE mrem/hr 10 miles: 10 miles:

THY CDE mrem/hr 2 miles:

THY CDE mrem/hr x 5 miles:

THY CDE mrem/hr 10 miles:

/2/ /9e&2&F2 NUMBER ATTACHMENT TITLE REVISION EPIP-4.08  % TECHNICAL SPECIFICATION WORKSHEET 13 ATTACHMENT PAGE 6 Lofl1 NOTE: 0 Percent TS should be calculated for all affected release pathways.

MGPI Normal Range Noble Gas monitors: 178-1, 179-1 and 180-1. MGPI High Range Noble Gas monitors: 178-2, 179-2 and 180-2.

Date:  ; Time:  % TECH. SPEC.

VENT VENT A:

CPM x CFM x CF  % TS VG-104: x x 2.35 E-7 Highest % TS iCi /sec x CF  % TS VG-179-1: x &.6E LfL4.4 E-'4 PjCi /cc x CFM CF  % TS VG-179-1: x x -. 5 -E St. o8 F-t VENT VENT B:

CPM x CFM x CF =  % TS VG-113: x x 9.54 E-9 = Highest % TS jiCi/sec x CF " =  % TS VG-180-1: x 5.46 E-4 -- So2£-f = __

ACi/cc x CFM CF =  % TS VG-180-1: x x 2.58 E-1 -

/a i Pf C F 2,37 6-(

PROCESS VENT:

CPM x CFM x CF =  % TS GW-102: x _ x 3.03 E-8 = Highest % TS

ýtCi/sec x CF -  % TS GW-178-1: x -s5rE6-5E .57 £-.

5_7E-S7 pCi/cc x CFM CF =  % TS GW-178-1: x x -.- 9-3,.,o £-Z

=E AIR EJECTOR MONITORS:

CPM x CFM x CF -  % TS SV-121: x x 6.4 E-4 =

CPM x CFM x - CF  % TS SV-221: x x 6.4 E-4 Completed by: TOTAL % TECH. SPECS.:

Date/Time: I

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