ML20049J387
| ML20049J387 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/02/1982 |
| From: | Ohanlon J ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20049J383 | List: |
| References | |
| 2904.04-01, 2904.04-1, NUDOCS 8203180044 | |
| Download: ML20049J387 (25) | |
Text
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.q ,;3\ 2904.04 REV. O w2
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PLANT M ANUAL SECTION: PROCEDUREN/ORK PLAN TITLE: NO: MAGNITUDE OF RELEASF PRorFnURE MAGNITtTDF OF RFEF ASE - CFRMS 2904.04 PAGE 1 of 24
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\s / ARKANSAS NUCLEAR ONE aavisioN o oATE Oi/08/82 CHANGE DATE 1.0 PURPOSE The purpose of this procedure is to provide an initial estimate of the radio-logical conditions at the ANO Exclusion Area Boundary, provide information to determine the Emergency Action Level, define the offsite area (s) poten-tially affected by an airborne radiological release, provide an estimate of the whole body and child thyroid dose rates and refine projections based on available field monitoring data.
2.0 SCOPE 2.1 This procedure is applicable to airborne radioactive releases from ANO, Unit Two as indicated by the Eberline Sping-4 monitors via the Eberline control terminals. THIS PROCEDURE PROVIDES A METHOD THAT IS SECONDARY TO AND PROVIDES BACKUP FOR THAT METHOD OF 2904.01, REV. O. 2.2 This procedure does i.ot take into account effects caused by precipi-tation.
3.0 REFERENCES
3.1 References Used in Procedure Preparation: 3.1.1 Arkansas Nuclear One Emergency Plan n ()'~ 3.1.2 " Manual for Protective Actions, Appendix D", Environmental Protection Agency 3.1.3 " Workbook of Atmospheric Dispersion Estimates", U.S. Depart-ment of Health, Education and Welfare 3.1.4 Memorandum Number CL-1460 (By A. L. Smith) 3.1.5 Memorandum Number CL-1571 (By A. L. Smith) 3.1.6 Eberline Technical Manual - SPING 3/4 3.1.7 Eberline Technical Manual - CT2 - - ~
, , 3.1.8 Eberline Technical Manual - CRT1 , . . . . - ;- _
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- 3.2.1 1903.10, " Emergency Action Level Response" 3.2.2 1903.43, " Duties of the Emergency Radiation Team" 3.3 Related ANO
References:
3.3.1 2904.02, " Magnitude of Release - Unit 2" 3.3.2 2904.01, " Magnitude of Release - Computer Method"
,_s 3.3.3 1904.03, Auxiliary Building Ventilation Exhaust Emergency
/ ) Radiation Monitor"
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PLA g A g g g l g ggy g{ROCEDURE/ WORK PLAN TITLE: NO: PROCEDURE MAGNITUDE OF RELEASE - GERMS 2904.04 PAGE Z 01 4* C)
ARKANSAS NUCLEAR ONE ==N CHANGE u DATE DATE i/a'ae 4.0 DEFINITIONS 4.1 00 (sigma theta) - The standard deviation of the net change of the horizontal wina direction 4.2 at (delta t) - The vertical temperature differential between the upper and lower temperature sensors on the meterological tower (in degrees centigrade).
4.3 X/Q - The ratio of the concentration of radioactive material (at a specific location) and the release rate (at the origin) in units of pCi/cc/Ci/sec. 5.0 RESPONSIBILITIES 5.1 The Shif t Operations Supervisor is responsible for determining if an unplanned gaseous release to the environment is indicated by symptoms such as high stack monitor readings, area radiation monitor alarms or other indications. 5.2 The Duty Emergency Coordinator, or his designee, is responsible for ~ performing the magnitude of release calculations.
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(3,) 5.3 The Duty Emergency Coordinator is responsible for notifying appro-priate groups per 1903.10, " Emergency Action Level Response". 5.4 The Offsite Radiological Monitoring Section of the Emergency Radia-tion Team is responsible for determining offsite radiological hazards per 1903.43, " Duties of the Emergency Radiation Team". 6.0 LIMITS AND PRECAUTIONS 6.1 This procedure provides an initial projection of the. radiological conditions; field monitoring is necessary to determine the actual
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< mc r- v o r ~ ~ -:: "- ^ =M * *- ~~ '- ..,w.. w -v: e. w +.~r. n w *:.v x e:n wi n s L :- r e -1. - s m. v -o- ~r 6.2 Conversion factors which are provided to establish the child thyroid l iodine dose rate are based on design basis accidents and should be I
considered less reliable than the calculated whole body dose rate. l 6.3 Actual terrain and weather conditions will generally limit the ac-curacy of the projected doses at a specific location. 6.4 The diffusion overlays used in this procedure represent long-term average conditions for ground level releases. i 7.0 DETERMINATION OF EXISTING HETER 0 LOGICAL CONDITIONS AND THE GASEOUS RELEASE RATE m \ _/ 7.1 Record the current date and time in Lines 1 and 2 respectively of l Form 2904.04A. If onsite meterological data is unavailable, enter "00S" (Out of Service) in the appropriate space.
PLANT M ANUAL SECTION: PROCEDUREN/ORK PLAN TITLE: NO: MAGNITUDE OF RELEA iE PROCEDURE MAGNITUDE OF RELEASE - GERMS 2904.04
,s PAGE 3 of 24 (N/ ) ARKANSAS NUCLEAR ONE aevision CHANGE 0 oATE 1/8/82 DATE 7.2 Record the os from recorder AAR 9300 on Form 2904.04A, Line 3. If os is not available, record the At from recorder AAR 9300 and note appro-priately.
7.3 Record the prevailing wind direction (40' elev., if available) from recorder WDR 9300 on Form 2904.04A, Line 4. 7.4 Record the wind speed (40' elev., if available) from recorder WSR 9300 on Form 2904.04A, Line 5. 7.5 Record the radioactive release data as indicated on the Eberline CT2 for each of the following release points that are in service on Form 2904.04A: 7.5.1 At the Eberline Control Terminal (CT), insert the key into the " keyboard" switch and activate the control terminal. 7.5.2 Set the History Format select knob to " Release Rate." 7.5.3 For each of the channels to be interrogated, depress the [ Hist. Min] pushbutton then enter the 2-digit monitor ID number and then the two digit channel ID. Then depress (} s' s the [ ENTER] pushbutton. A. Radwaste Area [2RX-9825] (Monitor 01, Channels 05, 07 or 09; in Ci/sec), Line 6. B. Fuel Handling Area [2RX-9830] (Monitor 07, Channels 05, 07 or 90; in Ci/sec), Line 7. C.. Penetration Room / Hydrogen Purge System [2RX-9835] (Monitor 05, Channels 05, 07 or 09; in Ci/sec), Line 8. D. Containment Purge [2RX-9820] (Monitor 02, Channels 05,
, 5, '. 07 or.09; in Ci/sec),-Line 9. -
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E. PASS Building [2RX-9840] (Monitor 08, Channels 05, 07 or 09; in Ci/sec), Line 10. F. Auxiliary Building Extension [2RX-9845] (Monitor 10, Channels 05, 07 or 09; in Ci/sec), Line 11. NOTE: A printout of the 23 previous 10-minute averages plus the current value will appear. l ( 7.5.4 Depress the [ PRINT] then the [. FILE] and then the [ ENTER] pushbuttons. b d
f P ggSgig ROCEDURE/ WORK PLAN TITLE: NO: PROCEDURE MAGNITUDE OF RELEASE - GERMS 2904.04 PAGE 4 ol Z4 fs)
*' ARKANSAS NUCLEAR ONE aEvision CHANGE o DATE DATE 1/a/az NOTE: A printout of the 23 previous 10-minute averages of the channel release rates will appear followed by a current release rate.
NOTE: Record only the data from the lowest numbered channel which gives valid, on-scale data. 7.5.5 Record the next-to-last value listed onto the proper line of Form 2904.04A. 7.6 Record the radiation levels in the main steam headers and either the number of safeties / atmospheric dumps open or the pounds / hour of steam being exhausted. 7.6.1 "A" Steam Header (RI-1007), Line 12. 7.6.2 Number of safeties / atmospheric dumps open (this is only applicable if the steam generator has primary-to secondary leakage; by using this method of calculation, the length of the release is not considered - it is only considered to be a portion of the instantaneous release rate for the
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time of the calculation), Line 13. (G w/ I 7.6.3 Lb/Hr Exhausted (Header A), Line 14, 7.6.4 "B" Steam Header (RI-1057), Line 15. 7.6.5 Number of safeties / atmospheric dumps open (see note on Step 7.6.2), Line 16. 7.6.6 Lb/,hr Exhausted (Header B), Line 17. 7.7 If a release is occurring from an unmonitored location, estimate the gaseous release rate and record it on Form 2904.04A, Line 18. r.7.d> rl4Ae lherfollowi ng dete rminatimwo a n :.c.r i v :t -re . w w e. v4 . .,w .wr., .-r.*. - .% ;e 7.8.1 If this is the initial calculation, proceed to Section 8.0 (Data Conversion). 7.8.2 Compare the present readings to the values on which the latest projections have been made. A. If the values have not deviated from the most recently checked column on Form 2904.04A by more than the fol-lowing list, it is not necessary to make new pro-jections. New data should be taken as specified by the Duty Emergency Coordinator or the Dose Assessment [\_')/ Supervisor.
' l PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO:
flAGNITUDE OF RELEASI: PROFFnimE MAGVITI!nF OF RFFFARF - CFRMS l 9904.04 PAGE s nf 24 ARKANSAS NUCLEAR ONE aavision n oaTE ni/os/s2 CHANGE DATE Indication Allowable Deviation Wind Direction 120 degrees Wind Speed 120% 00 1 New Atmospheric Stability Category At i New Atmospheric Stability Category Release Rate /mR/hr 120% Flow Rate 120% B. When the data recorded changes more than the allowable deviation and a new projection is made on that data, you may identify the data by marking the parenthetic box "()" in the top of that column on Form 2904.04A. 8.0 DATA CONVERSION 8.1 Complete Form 2904.04B to determine the atmospheric stability cate-gory and the downwind direction. If site meteorological data is un-available, limited meteorological data may be obtained from the fol-lowing groups, as indicated: NOTE: You must specify verbally that it is a Pasquil atmospheric stability category that you are requesting. - 8.1.1 V' I National Weather Service [771-0971; or V}. (projected windspeed, direction, & Pasquil atmospheric stability category) 8.1.2 KARV Radio [968-1184]. (Wind speed and direction) 8.1.3 MSS Dispatcher. (Weather wire information) 8.2 Complete Form 2904.04C to determine the gaseous release rate. 9.0 DETERMINATION OF DOSE RATE AND MAXIMUM PERMISSIBLE CONCENTRATION AT TIIE EXCLUSION AREA BOUNDARY
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9.1 Complete Form 2904.04D to calculate the following information:
, 3, 9.1. ] yhole-body dose-rate at the Exclusion Area"Bounda-r:r. , - - - -
a v.a a s w v =- ".~ u~.: r + u s w o - es,v.r--. =% n. - nw - m -= - *- w '-. n-
, : ?, . s<,. e.a. s$ .'I 2 w e.mChild z thyroid dose rate at the Exclusion Area Boundary.
9.1.3 The ratio of the actual to the maximum permissible concen-tration of Xc-133. 9.2 If an Emergency Action Level is NOT indicated, return to Section 7.0. New data should be taken as specified by the Duty Emergency Coordina-tor or the Dose Assessment Supervisor. 9.3 If an Emergency Action Level is declared (initial projection only), identify, as necessary, the meteorological and ef fluent monitor data on Form 2904.04A which was used in making the projection by checking the parenthetic box "()" at the top of that column. TifE MATERIAL CONTAINED WITHIN THE SYMBOLS ( ) IS PROPRIETARY OR PRIVATE INFOR'!ATION.
I PLANT MANUAL SECTiON: PROCEDURE / WORK PLAN TITLE: NO: MAGNITUDE OF RELEA SE PROCFnURE MAGNITUDE OF RFTFASE - GERMS 2904.04 f-~s PAGE 6 of 24 l'- ) ARKANSAS NUCLEAR ONE aevision CHANGE o DATE 1/8/82 DATE 10.0 PLUME Dr.FINITION NOTE: The attachments contained in this procedure are provided for ILLUSTRATION ONLY. The scaled overlays and maps necessary to do the actual calculations with are located in the following ' emergency kits:
- a. Control Room Kit
- b. Onsite Technical Support Center Kit
- c. Emergency Control Center Kit 10.1 S;1ect the overlay (Attachments 1-7) which corresponds to the exist-ing atmospheric Ltability category (Form 2904.04B, Line 1.2).
10.2 Place the selected overlay on the ANO area map (Attachment 8) with the origin directly over the ANO site center and align plume center-line with the downwind direction. 10.3 Complete Form 2904.04E to calculate the Plume Boundary, Whole Body Dose Rate and Child Thyroid Dose Rate at selected downwind distances. NOTE: The msximum downwind extent of the affected area may also be determined by the extent of the plume boundary. (3 (_-) 10.3.1 Locate the general vicinity of the plume boundary (from Form 2904.04E Line 2) on the overlay corresponding to the Atmospheric Stability Category. A. Any sectors which are contained (or partially con-tained) within the plume boundary line should be designated as an affected area. NOTE: The following steps accounts for the Lacertainty in the local wind direction cause'd by the Mt. Nebo/ Spring Mountain terrain fea,tures. -
, 3, ,
< ., ; .. a- e w m,. c a m.m a c B'.""1l^tIie'~ pMd 'cin't'&Mfne- fit ('in"seEtWt6 iiEr GF"*~' ^* '' plume boundary extends beyond 6 miles, the affected area should also include sectors 9, 10 and 11 (from subsector G to the projected extent of the plume). C. If the plume centerline lies in sector 11 and the plume boundary extends beyond 6 miles, the affected area should also include sectors 10, 11 and 12 (from subsector G to the projected extent of the plume). 10.3.2 If it is necessary to calculate plume arrival time (in hours) for a specific location, divide the distance (in miles) from g-~) the plant to the location by the windspeed (in mph). 10.3.3 If it is necessary to calculate the projected integrated dose (mR) for a specific location, multiply the local dose-rate (mR/hr) by the estimated duration of the release (hr).
PLANT M ANUAL SECTION: PROCEDURE / WORK PLAN TITLE: I NC: MAGNITUDE F RELEA 3E , PROCEDURE MAGNITUDE OF' RELEASE - GERMS 2904.04 PAGE (7 V ARKANSAS NUCLEAR ONE aEvisioN CHANGE 7 of 24 O DATE
- 1/8/a2 DATE' 11.0 NOTIFICATIONS , ' -
11.1 Provide radiological release information to appropriate groups per 1903.10, " Emergency Action Level Response". 11.2 The Emergency Radiction Team may be dispatched to obtain field radio-logical data at the discretion of the Duty Emergency Coordinator / Recovery Manager. They shall be dispatched upon declaration of a Site or General Emergency. If the Emergency Radiation Team is dis-patched, refer to Section 12.0. 11.3 Return to Section 7.0. New data should be taken as specified by the Duty Emergency Coordinator / Dose Assessment Supervisor. , NOTE: The following section may be used during periods that monitor-ing teams have been dispatched, to improve dose projections , based upon the comparison of projected and measured whole body dose rates at field locations on the plume centerline. This section is designed to complement rather than replace the ongo-ing dose projections of Sections 7.0 through 10.0. 12.0 VERIFICATION OF PROJECTED DOSE RATES BY FIELD MEASUREMENT - [~\
\I 12.1 Based on wind direction, the Duty Emergency Coordinator /Offsite Moni-
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toring Supervisor should dispatch offsite radiological moniforing teams to sample the plume at appropriate locations '(to be determined at the time of an incident). Preselected survey points in each sector and zone are shown on the area map (Attachment 8). 12.2 The radiation survey at each location should include n direct exposure rate measurement (mR/hr) and an air sample to determine iodine concen-tration (pCi/ce). As the survey teams approach the assigned survey location, continuous radiation measurements, should be_ taken to identi-fy the location of the highest radiation level. As survey results are obtained, the radiological monitoring team should report the resnits to hhm ~ ~ i . . m -v .
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proceed as directed. NOTE: Real-time determinations should be compared to projected levels - for corresponding time periods. 12.3 Determination of Equivalent Release Rates by Field Measurement. 12.3.1 Record on Fonn 2904.04F, the Field Location in Column 1, the Iodine Concentration in Column 2,the Whole Body Dose Rate in Column 3, the Xu/Q for the location (as deter-mined by interpolation from the appropriate overlay) in Column 4 and the current windspeed in Column 5.
/ 12.3.2 Because the dose rate and concentrations may change rapidly k s)' with distance from the plume centerline estimates of release rates should be based only upon ceaterline dose rate and
-r PLAfvT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO:
MAGNITUDE OF RELEA sE i M 'hRocEnt'RE MAGNITUDE OF PELEASE - GERMS 2904.04 (').
\ws b- . ARKANSAS NUCLEAR ONE PAGE
-aevision CHANGE 8 of 24 0 o*Ta 1/8/82 DATE concentrations. Select a sampling site corresponding to
_ the highest measured field dose rate by traversing the plume at the desired downwind distance. Complete Form 2904.04F
, to estimate the iodine and noble gas release rates which, under the dispersion assumptions in this procedure, would produce the observed field conditions.
12.3.3 The most current release rat s may be used in place of inplant monitor data for future Dose Rate Projections. The set of release rates providing the greatest agreement be-tween field dose projections and multiple field monitoring results should be u ed. Alternatively, either sat of release rates may be used with an assumed atmospheric stability category which gives projections consistent with field monitoring results. s' 13.0 ATTACHMENTS AND FORMS 13.1 Form 2904.04A - Existing Conditions Summary 13.2 Form 2904.04B - Meterological Data Work Sheet
/% 13.3 Form 2904.04C - Gaseous Release Rate Work Sheet
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13.4 Form 2904.04D - Emergency Action Level Determination 13.5 Form 2904.04E - Offsite Dose Projections 13.6 Form 2904.04F - Rele'ase Rate Determination by Field Measurement
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13.7 Attachment 1,- Diffusion Overlay (Atomspheric Stability Category A)
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13.8 Attachment 2 - Diffusion Overlay (Atmospheric Stability Category B)
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At(achment 3 - Diffpsion Overlay (Atmospheric Stability Category-C) _- t 13.,9 - . .a :r-v s cu n c : w .-.x < e:n w w 4 r~v-u - = :%-m- n..w n =M m-m-n-r n - *w s_ m+ 13.10 Attachn:ent 4 - Difiusion Overlay (Atmospheric Stability Category D) 13.11 Attachment 5 - Diffusion Overlay (Atmospheric Stability Category E)
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13.12 Attachment 5 - Diffusion Overlay (Atmospheric Stability Category F) 13.13 Attachment 7 - Diffusion Overlay (Atmospheric Stability Category G) 13.14 ' Attachment 8 - Area Map b s- J J
I PLANT MANUAL SECTION: PROCEDUT.E/ WORK PLAN TITLE: N O-MAGNITUDE OF RELEA sE y,, , . . PROCEDITRE MAGNITITDE OF RET. EASE - GERMS 2904.04 PAGE 9 of 24 ARKANSAS NUCLEAR ONE aEvisiON CHANGE O DATE i/a/a2 DATE
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ARKANSAS POWER & LIGHT COMPANY - -- Arkansas Nuclear One N " r vt ote- ec m rt tr ize . r-e m v l --- .
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1 __DAIE 2 TIME UUetM) J ou (dearees) (or ( ) At (*C)] (AAR-9300)
- 4 WIND DIRECT!uN (kLR-9300) iko'f, ,
IN DEGREES l%15 MIN, AVG. l
- 5 W'iND SPEED (WSR-93ooTitFit
[s 5 MIN AVG [ .. p~ NWW.*allsid
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6 kAIAASTE AkElAftoNITOR 01; CllANNEL ()05, ()07, ()09) Ci/Sec
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/ ifE[TlAND!.1NG AREA (MON! TOR 07; CILuNEL ()05, ()07, ()08, ()o9j L.'i / Sec 8 iLNEfRATION R00M/HYD80 GEN PLHGE (MONITOR 05; Channel ()05, ()01, y s
()09) CL/Sec , .c p. Z:- 9 CONTAINMENT PURGE [MuNITOR 02; J 10 CHANNEL ()05, ()07, ()09] Ci/Sec PASS EUlf.liEG (Mo51 TOR 08; CHANNEL
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. ',, ()os, ()07, ()o9) C1/Sec bj N*N7 h .ON l
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. CHAWEL ()05, ()07, . ()091 C1/Sec -
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'..s'.*,';*,'., _ r."/ ; . . ' F , 5,* h_' MM!" .NU5Ufl.*NIbM l b.;-. - "* UNM 22.5* <-0.87* ,..,4 B 17.5' to 22.5* -0.87* to -0.78' C 12.5* to 17.5' -0.78' to -0.69' D 7.5* to 12.5' -0.69' to -0.23' E 3.8' to 7.5* -0.23' to +0.69' F 2.1* to 3.8' +0.69* to + 1.8' G (2.1* >1.8* ,
Atmospheric Stability Category = Qc .. ,ypy.. .
, 2.0 WIND SPEED
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2.1 Record the Wind Speed (averaged over the previous 15 minutes) from the wind speed indicator (WSR 9300). c; D {'Q D ,,;
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Wind Speed a sph - '
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- ,3.0 WIND DIRECTION m . .- o
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AW w ie e<.<Y.- d M .' { f g G "g p .7,-{ L g ..? g y* g .j . gr, h g M h EgQ p [ g Rb. A $ ;'E:. E M N 8 - 15 minutes) from the wind direction indicator (WDR 9300)
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Prevailing Wind Direction = (From) degrees " * ' ' ~ < ' - -c. 3.2 Determine f rom the following table the Downwind Direction corresponding to the Prevatting Wind Direction determined in Step 3.1 above and record the Down=tod Direction below: Prevailing Wind Direction Downwind Direction O' 1 Prevailing Wind Direction Prevailing Wind i 150* Direction + 180' 180' i Prevailing Wind Prevailing Wind Direction 1 360' Direction - 180' Downwind Direction = degrees N
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Performed by: / INITIAL / TIME
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F PLANT M ANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: MAGNITUDE OF RELEA iE new-a m - - PROCEDURE MAGNITUDE OF RFI.
- EASE - GERMS 2904.04 PAGE 11 of 24 ARKANSAS NUCLEAR ONE arvisioN CHANGE 0 o*TE i/8/82 DATE
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Arkansas Nuclear One
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REV. # 0 PC i LINE MONITOR ~ ' ' DESIGNATION (CIRCLE CHANNEL) RELEASE RATE (C1/Sec) NO. NO. 1 01 RADWASTE 05 07 09 2 07 ITEL HD. 05 07 09 3 05 PEN RM/H2 05 07 09 .. 4 02 CONT. PRG. 05 07 09 _ 5 08 PASS BLDG. 05 07 09 gQg
& mr.w v < . .
6 10 AUX. BLDG. EX. 05 07 09 ^
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7 "A" STM. HDR.* 'w--n - 8 "B" STM. HDR.* 9 UNMONITOR. REL , 10 TOTAL ,
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- 3" '
- Net mR/br
- No. Sa feties Open
- 0.0152 'd r '
or . mR/hr RELEASE RATE ~.i )N.
.pyw;< * -0.y r-w .
"%' $D3d 'W e
Net mR/hr
- Lb./hr Steam Exhausted
- 1.9E-8 = 8 ^" .o WI' '
RELEASE RATE & '.;m,7' ' e .- >.* .= ... ,, .- d ~I c. ~' '-
. Performed bfr [
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. . . ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One TITLE. EMERGENCY ACTION LEVEL DETERMINATION l FORM NO-2904.04D REV. # 0 PC f Page 1 of 3 ', * >
Column A Column B CALCULATION OF DOSE RATE ANNUAL AVERACE EXISTING
& MPC AT THE EXCLUSION CONDITIONS CONDITIONS AREA BOUNDARY (0.65 MILES) g L Category: N/A 1.'n i t s Category:
1.0 Enter the Total Gaseous Release Rate (Q ) (From 2904.04C) in 8 Columns A*& B. C1/Sec 2.0 Select and Enter the bhole Body _ ; dose factor from the following list . Mdre k. Jr*, which corresponds to the existing h t ti ""f.* it' Atmospheric Stability Category (from 2904.048) in Column B. 1.26 ,Jt/h r O' Atmospheric Stability II 'C Category k~0 Dose Factor A 1.83 B 9.3 C 19.9 D 42.5 E 64.1 p7 F 92.3 G 153
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3.0 Calculate the Uncorrected khole Body Done Rate at the Exclusion e.[.?A'
,y[ypt bwg ,45
- ic /_'
r e Area Boundary (Line 1.0 X Line 2.0) and enter the products,, *, la Column A and B, respectively. e , , , - *
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a %7? :' XXXXXXXXXXX
. , . . . . . . . ^ . '. L'.! . u.' > . -@:- ..." ' r. . -.~A -
T ;.= w .'.21 2 %s gfrom Column B.' . (mph) ! 'h' " ; , 5.0 Correct the bhole Body Dose Rate for windspeed (Line 3B + Line 4B) "!fDf.k'.O = and enter results in Column B. XXXXXXXXXXX mR/hr ( O 4
. x . .. - .
- ~-
-**':;y 5?: 5.g.i.Ql,
' .W.T,4
. s ---w. , ,,- +,. x ea Wh >- s. . . . l T~- .h,L' N" '
PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: N& MAGNITUDE OF RELEASE PROCEDirRE MAGNITtfDE OF RELEASE - GERMS 2904.04 PAGE 13 of 24 O V ARKANSAS NUCLEAR ONE a Evisio N CHANGE O DATE DATE i/a/a2 i ne s.wne , < 3
. - . . - ARKANSAS POWER & LIGHT COMPANY -- . -
F Arkansas Nuclear One FWRCTNCY AfTf 04 f.FWt. PcTTD4f WTf 04 WA r!M
. . . . . . _ . . . . M*# ^ PC i
~ '
Page 2 of 3 Column A Column B ANNL'AL AVERAGE EXISTING Conditions Units Conditions 6.0 Transfer value from Line 3A to Line 6A. Transfer Line 5B to Line 6A. mR/br(whole body) ' mR/h r (thyroid) mR/hr(whole body) 7.0 Select and enter the ap- ,,,; n propriate dose factor from the following list based on the 424dd 6 IG T*l* # ' ' ' current plant conditions in Columns A and B. Plant Condition todine Dose Factor Waste C.is Tank Rupture 2.6E-4 Steam Ge nerator Tube Rupture 0.13 (to Condenser) -
- Fuel ifandlina Accident 8.2 Large-Break LOCA 22.8 Small LOCA (outside 69.0 .',.-
Contairunent) None of the Above
-$ yid',.-
3.4
'. - 4 8.0 Calculate the projected Child Thyroid '.sLIf#
i g,"
*.77 Dose Rate at the Exclusion Area $d
- i*."t i c4 E Boundary (Line 6 X Line 7) and Q[$$
enter the results in Columns A and [ *
** B.
e respectively. mR/br(chil*f .#' , ,_, ,
;.s: my, y.s :- E,-> t .s N.*~{r,~)$:- , ~[-Q&.Rf.f,$'*[pM; N.5. if$5 $. 6%%'?=sNY-YG6'S?YB $5 the existing Atmospheric Stability
- _- e.e Category (from 2904.04D, Step 1.2) , ,
k i C*
=*
in Column B. 10.6 Atmospheric MC/mR/ h r Stability Xe-133 MPC Category Factor A 14 B 15 C 18 D 23 E 25 F 30 G 46 i g 9 % -
,9 ec.r.n c- m s m ,. w a n . T ::k g;mp.%k.u s
.." . - -: . ~: .. .-
..:. Wmy
.m en. n t I d v w . ;.n;~-n.t ~- M e ;-.- m
_....m. - ; ..
F Pg g g gig gROCEDURE/ WORK PLAN TITLE: NO: PROCEDURE MAGNITUDE OF RELEASE - GERMS 2904.04 me .c PAGE 14 01 44 f - ARKANSAS NUCLEAR ONE aEvision CHANGE u DATE 1/a/az DATE n a I ' m ARKANSAS POWER & LIGHT COMPANY
'("
g
- Arkansas Nuclear One r ur r r r r r..
- t r . t r. .r r - - er r .o v , ,, , , "
. . L,;. a,.
!REV". # o , ~PC d '~
,n Page 3 of 3 -
Column A Column B ANNUAL AVERAGE EXISTING Conditions Units Conditions 10.0 Calculate the Xe-133 MPC Ratio at the Exclusion Area Boundary (Line 6 X Line 9) and enter results in Columns A and B. MPC NOTE: For EAL declaration, only Unit 2 re-sults should be used; follow-up cal-culations may include both unit's results. 11.0 Summarize the results of the calculations I in the appropriate column of the following j.;*' j,(% table. If magnitude of release determin- - ations have been initiated on Unit 1, enter the results of the determinations for Unit 1 ~ ..<s ( f r om Fo rm 1904.04D) in Column 1, the re-sults of the determinations for Unit 2 in Column 2 and sum the results to obtain the combined effects. If Unit 1 is not involved in making a release, you may enter "NA" in Columns 1 and 2 and enter the results of the determinations for Unit 2 in Column 3.
- .d a Column 1 Colu.no 2 Column 3 9.,<...,
~~
Unit One Unit Two g f. ;',*i'Q;{
*W Step' Item (Form 1904.04D) (Form 2904.04D Tota 1 O N- N h5 M II.I Line b (Column A) . AI 11.2 Line 6 TColumn B) '
- N M *S"
- 11.3 Line 8 -
e 4-
~
11.= Line 8 .JColumn(Cole.n BA) ) g
.' , y, ,"
i 11 3 p r3e j o i
; ,w v.v .m ,, v w& m g,*.C -
tw S1';%ggg;)9 .*.-
. ..W" -^ ^ ^ .+.: . AV-., ~. - n C .'.1.2D 'M EE#dI e, "
no h- +4 12.0 Using the results from 11.0 above, deter- - mine the appropriate Emergency Action level p. .- t%2 4
' " 2 (EAL) based upon ths following criteria: EMERGENCY ACTION LEVEL INDICATED EAL CRTTERIA DENERAL EMERGENCY 11.2 (Total) > 5.0 mR/hr WB or (CE) 11.4 (Total) > 25.0 mR/hr CT SITE EMERGENCY (SE) 11.1 ( To t a l ) > 5.0 mR/hr WB or 11.3 (Total) > 25.0 mR/hr CT ALERT (A) 11.5 (Total) > 10.0 MPC/I!OUR NSUAL EVENT (LT.) 1I . 5 (Tota 1) > 1.0 MPC/lf0CR I s Performed by:
\
1.N ITI ALS / TIME Reviewed by:
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r ' PLANT M ANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO:
" MAGNITUDE OF RELEA sE a o,.r ,, . - .
PROCEDURE MAGNITUDE OF RFTFARE - CERMS 2904.04 PAGE 15 of 24
^ -
ARKANSAS NUCLEAR ONE aEvision CHANGE O DATE 1/8/82 DATE
.- m ase.ae s.e4 '
- ARKANSAS POWER & LIGHT COMPANY - -
Arkansas Nuclear One
" orrmr mer run ermne l '0" "O' w( mc
... J~ REV. # 0 PC f -
CALCULATION OF OITSITE DOSES AT SELECTED DISTANCES Date ' $. - $*
- 1. Record the following information:
1.1 X/Q at Exclusion Area Boundary (0.65 miles) from selected overlay 1.2 khole Body Dcse Rate at Exclusion Area Boundary (from Form 2904.04D. 11.2 TOTAL) 1.3 Child Thyroid Dose Rate at. Exclusion Area Boundary (from form 2904.04D 11.4 TOTAL)
- 2. Calculate the X/Q line corresponding to the plume outer boundary
-__ _--- (0.05 mr/br htole Body): s. . .. J-.fi r** +WMOaN y Pe>:r;-W. ;;l,T_r L:'
' [X/Q EAB (Line 1.1) + btole Body Dose Rate (Line 1.2)l x 0.05 = '
(X/Q for 0.05 mR/hr) Af fected Sectorts) = @.. . ..m .
- 3. Calculate the Projected htole Body and Child Thyroid Dose Rate at selected 6 mwind distances of 1, 2, 5 and 10 miles.
(1) (2) (3) (4) Downwand Plume Projected Distance Projected .., J -[. Centerline htole Body Child Thyroid T ,l - Q (mi) X/Q Dose Rate Dose Rate . t'";f . .',. I h#;; 'hb !-
$$l$ 5 hi 2 -
~ = w M. % ?.s :-
- w '- - uj r
# 10 e .
.. a. -
.*t ..
t . - -
; M.':fr%. ic*?i, = *.'h 's 1 ' ?'!"':$$i$%'%&WW. ' ' 7 : MlW $f" '^- *
?DWD~V?$UNY W*
\ \ , .e wi.sca i CALCULATIONS: v Column 2: Determine X/Q from overlay corresponding with atmospheric stability category. Column 3: Projected ktole Body Dose Rate (mR/br) = Line 1.2 Line 1.1 Column 4: Projected Child Thyroid Dose Rate (mR/hr) a Column 2 X Line 1.3 Line 1.1 fg Performed By / Initials / Time Reviewed By 1 l _ . . . p.n.n w r rr w w .: a m w > n ..
- 2.':n:26.WZC'.pM
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. P g g g S g Ti g gg AOCEDUT.E/ WORK PLAN TITLE: NO:
rdm=* .: L ~ PROCEDURE MAGNITUDE OF RELEASE - GERMS 2904.04 M ' ~ ~ ' " ' PAGE Au 01 4 ARKANSAS NUCLEAR ONE aevision CHANGE
" oATE DATE
^<*'oe
. .- ~ - -
ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One mtL RELEASE RATE DETERMINATION BY FIELD MEASUREMIht!ON NO. 2904.04F PC f RIV. # 0
; f . p ,.
.,', .; (2) (3)
(!) (4) (5) (6) (7) Field fodine Conc. thole Body mu/Q Windspeed Noble Cas Iodine Location (pci/cc) Dose Rate MPH Release Rate Release (aR/hr) (Ci/Sec) Rate (C1/Sec;
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CALCULATIONS: N' (6) Noble Gas Release Rate (Xe-133 equivalent) = column 3* 5.75E-6/ Column 4 , Column 5 (7) Iodine Release Rate t!-131 equivalent) = Column 2/ Column 4 e Column 5 Performed By / Initials / Time Reviewed By l t
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PAfiE '" " (\- ) ARKANSAS NUCLEAR ONE aEvision u oATE 2/a'a" CHANGE DATE ATTACHMENT 8 W- ' *.-a.,6
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