ML20069G049

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Public Version of Revised Emergency Plan Implementing Procedures,Including Procedures 1903.30 Re Plant Evacuation, 1903.50 Re Emergency Response Organization & 1904.07 Re Protective Action Recommendations
ML20069G049
Person / Time
Site: Arkansas Nuclear  Entergy icon.png
Issue date: 03/10/1983
From:
ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML20069G040 List:
References
PROC-830310-01, NUDOCS 8303250005
Download: ML20069G049 (32)
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Text

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w* PLANT M ANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: r?trecenc" er vi rurenetirv pectruer acquit 7; Tr*? 1ono cn ARKANSAS NUCLEAR ONE Esma To'aIE nun-CHANGE DATE a 5.35 The Utility Advisory Supervisor is responsible for releasing informa-tion to Arkansas Power & Light employees, other utilities, and utility information service organizations such as Atomic Industrial Forum, Electric Power Research Institute, Edison Electric Institute, and the Institute of Nuclear Power Operations. This position should be filled by the designated Communications Editor. 5.36 The Governmental Advisory Cc ordinator is responsible for providing information to elected state and federal officials on a regular basis. This position should be filled by the Director of State Governmental Affairs. 5.37 The Local Advisory Supervisor is responsible for assisting the Govern-mental Advisory Coordinator by informing the elected officials of the communities and counties in the area of the plant. He is also responsible for ensuring that a representative of the Arkansas Pouer & Light organization is available to each principal offsite govern-mental emergency operations center (e.g. County Emergency operations Center) to provide assistance to the governmental groups. / ~) (G This position should be filled by the Russellville District Manager. 5.38 The Planning and scheduling Coordinator is responsible for pre-paring schedules to coordinate and track the progress of Emergency Response Organization activities in response to an incident. This position should be assigned by the support superintendent. 5.39 The TOCC Liasion is responsible for providing assistance to the Technical Operations control Center staff, as necessary. This positlen should be filled by an individual from the Technical Advisory Personnel Roster (1903.10, Att. 8). l l 1 i i ( ' O l

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ARKANSAS POWER & LIGHT COMPANY .;\\ Arkansas Nuclear One FO N NO. M RECORD OF CHANGES AND REVISIONS 1000.06A 0FFSITE DOSE PROJECTIONS REV. # 12 PC # f '3. / l Safety Related YES 6 NO O RADIOLOGICAL PLUME TRACKIIIG AND DOSE I!41r.uhnalwa 'd[.k ^ 1904.06 .REV. 1 ('g"'ii].!h{ [ldi]/ 2 /d/o g w =- , PAGE REV PC// PAGE REV PC// PAGE REV PC// PAGE REV PC# PAGE REV PC# 1 1 2 1 3 1 4 1 5 1 6 0 7 1 3 1 9 1 i 10 1 11 1 12 1 i APPROVED BY: APPROVAL DATE O Jh // ,/ /, T,... u REQUIRED EFFECTIVE DATE: L n... < (, General Manager) / b 'a

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUME TRACKING P e n _T e rT t rM9 AMD 0097 TMTer,cATTon ton 4 n r, PAGE 1 of 17 ' o~ ATE ARKANSAS NUCLEAR ONE a< vision n27,=r=, (s) CHANGE DATE 1.0 PURPOSE This procedure provides a manual method for estimating the location of airborne radioactive materials offsite under changing release and meteo-rological conditions, and for estimating the maximum integrated dose com-mitments at 0.65, 1.0, 2.0, 5.0, and 10.0 mile radii. 2.0 SCOPE 2.1 This procedure is applicable to airborne radioactive releases from either ANO-1 or ANO-2. 2.2 This procedure does not calculate the fine structure (actual distri-bution) of integrated doses offsite. 2.3 This procedure does not take into account effects caused by precipi-tation and terrain channelling. 2.4 The data generated from this procedure is used as input for procedure 1904.07, " Protective Action Recommendations" and no notifications are required.

3.0 REFERENCES

3.1 References Used in Procedure Preparation 3.1.1 Emergency Dose Calculation Package Methodology Manual, Applied Physical Technology, July 1981 3.2 References Used in Conjunction with this Procedure 3.2.1 1904.02, "Offsite Dose Projections - Pocket Computer Method" 3.2.2 1904.07. " Protective Action Recommendations" 3.3 Related AMO References Mone f 4.0 RESPONSIBILITIES 4.1 The Dose Assessment Supervisor in the Emergency Response Organiza-. l tion, or his designee, is responsible for long-term radiological plume tracking and dose integration. 4.2 The Duty Emergency Coordinator, or his designee, should initiate radiological plume tracking and dose integration as soon as possi-ble after the TSC is activated and continue until relieved by the ~(J \\ Dose Assessment Supervisor. C'N

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUME TRACKING renTec+Tnqq Ann pnce TnTecetTTmt 1 o nt.. ng PAGE o ~DAs ARKANSAS NUCLEAR ONE ~ nf 19 aE-N nn - o) g CHANGE DATE 5.0 LIMITS AND PRECAUTIONS 5.1 Actual integrated doses will generally be lower than predicted by this procedure due to typical wind direction meander. 5.2 In order to be meaningful, the dose integration must cover the entire release period (i.e. all plume segments). 6.0 DEFINITIONS 6.1 Plume Segment - An air parcel containing radioactive material emitted at a relatively uniform release rate and under relatively uniform meteorological conditions. 7.0 DOSE RATE PROJECTION

SUMMARY

7.1 Transfer the dose projection input and output data from Form 1904.02D to Form 1904.06A for each dose pro]ection as it is performed, i.e. therefore the oldest data will appear closer to the top of the form. Include all dose projections previously calculated by Control Rcom personnel since the beginning of the release. The time on Form 1904.06A refers to the time recorded on 1904.02A. e' ( 7.2 For each projection, compute the " segment length (miles)" by multi- \\ plying the then-current windspeed (mph) by the total elasped time i between the current and previous data collection times (hours). Re-cord the " segment length" on Form 1904.06A for each dose pro]ection (plume segment). NOTE: The elasped time for the first plume segment is the time period from the start of the release to the first data collection time. 7.3 Combine sequential dose projections which have similar meteorological and release rate characteristics into a single plume segment. This reduces subsequent plotting and integration tasks. i 7.3.1 The criteria for grouping are: Wind direction ! 10 Wind speed 1 MPH under 5 MPH or 20% over 5 MPH Stability class no change Release rates 20% All tolerances are expressed as maximum deviation from the first segment in the group. The characteristics of the combined segment are the average of the respective charac-teristics of the component segnents. 7.3.2 Draw brackets on the left hand margin of 1904.06A to in-(S) dicate the grouping of segments.

PLANT MANUAL SECTION: PROCEDURENVORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUME' TRACKING re n Te cTTA'!q AL'n p age TntrapATTOM 1004.06 PAGE 1 nc to e ARKANSAS NUCLEAR ONE TarvisiON T oirE 02 <, o s, CHANGE DATE 7.3.3 The characteristics of the combined segment are those of the first segment of the group. I 8.0 PLUME CENTERLINE FLOTTING 8.1 Obtain a 360 protractor, ruler, stability class overlays, map, cal-culator, and pad of tracing paper (11" x 17", ruled 10 x 10 to the inch) from the appropriate emergency kit: S.1.1 Technical Support Center S.1.2 Emergency Control Center 8.2 Select an origin and north-south axis on the tracing paper, taking into consideration the general direction of plume development. S.3 Refer to Form 1904.06A to determine the downwind direction and seg-ment length of the most recently emitted plume segment. 8.4 Center the protractor on the origin of the tracing paper. 8.5 Turn the protractor until the downwind direction angle (indicated on the outer ring) is aligned with either the north or the south direc-(N tion on the tracing paper. 8.6 Draw the segment centerline along the indicated side of the protrac-tor's central straightedge, depending on whether the downwind angle was aligned with north or south on the paper. 8.7 Use a ruler to draw the plume segment length to scale (1" = 1 mile). 8.8 Mark the segment endpoint. This is the starting point for the next (older) plume segnent. 8.9 Label the segment centerline with its initial release time. Ifark the segment endpoint with the total broken-path plume length at that point. 8.10 Center the protractor over the starting point for the next older seguent. 8.11 Refer to Form 1904.06A to determine the downwind directions and lengths of successively older plume segments, repeating Steps 8.5 through 8.10 until all plume segments have been plotted which fall within a 10-mile radius of ANO. ( 9.0 PLUME OUTLINE DRAWING NOTE: This section must be completed only if a graphic plume drawing is re-7-{d quired: normally once e"ery 30 minutes. (

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUI!E TRACKI!!G j PROTFFTTOMS 'MD DOSF TMTEGRATTOM 1904.06 PAGE 4 of 12 n ARKANSAS NUCLEAR ONE aEvismN 1 oATE 02nsess s,/ CHANGE DATE 9.1 For each plume segment, beginning with the one emitted most recently: 9.1.1 Select the overlay corresponding to the atmospheric sta-bility when that segment was released. 9.1.2 Using the total broken-path distance to the segment start-ing point (as recorded on the centerline plot), mark the segment starting point on the centerline of the stability overlay. 9.1.3 Place the overlay under the tracing paper bearing the cen-terline plot, aligning the segment starting points and centerlines. 9.1.4 Trace the bounding X/Q lines for the segment, connecting smoothly with the adjacent segment. (It is usually helpful to extend the boundary lines an inch or so beyond the seg-ment endpoint). 9.2 Darken the plume outline. 9.3 Affix the tracing sheet to a 10-mile radius emergency planning map, aligning the north-south directions, and centering the starting point 73 (J) of the youngest plume segment over the plant site. 10.0 DOSE COMMITME!IT IIITEGRATIOM 10.1 At the top, leftmost open column on Form 1904.06B, list the starting i and ending times for the earliest segment not previously listed. Sub-I tract the starting time from the ending time to determine the dura-tion of this integration period in hours. A separate set of forms must be maintained for uhole body and for child thyroid doses. i. 10.2 Record the child thyroid and uhole body dose rates associated with the plume segment currently c_rossing the radii listed on Pages 1-5 of 1904.06B. Record the centerline dose rate on the line for the sector where the intersection occurs. I i 10.2.1 For the most recently emitted plume segment, the most recent centerline dose rates tabulated on Form 1904.06A may be used. l l l 10.2.2 For substantially curved portions,of the plume: i j A. Note which plume segment is currently crossing the radius of interest. 1 l B. Reposition the X/Q overlay for that segnent over the ) plume outline, aligning the centerline axes. l r\\( ) I C. The total broken path distance to the segment starting I point must coincide with the straight line source-to-l segment start distance on the overlay. o l l

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUIIE'TRACKI!!G renTertinue Ann nner vnTrnonTTnn inna oc PAGE s nf 17 ARKANSAS NUCLEAR ONE aavisioN oATE n, 4 = < co o f i CHANGE DATE G D. Interpolate the X/Q value at the plume centerline where it crosses the radius of interest. E. Divide the local X/Q by the bounding X/Q for that plume as shown on Form 1904.06A, then multiply by 0.050 mR/hr to obtain the whole body dose rate at the radius of interest. F. Obtain the child thyroid dose rate at the radius of l interest by dividing the result from Step 5 by the whole body dose rate for the corresponding radius for that plume segment from Form 1904.06A, then multiply-ing by the child thyroid dose rate. l 10.3 !!ultiply the dose rates obtained in Step 10.2.1. A or Step 10.2.1.B I times the duration to determine the incremental whole body and child thyroid integrated doses. Record these in the 'A' Dose column on the whole body and child thyroid worksheets (Form 1904.06B), on the appro-priate sector / radius line. IJOTE : When the plume centerline falls between two sectors, add the incremental doses to both sectors. [. 10.4 For each sector / radius line on Form 1904.06B, add the entry in the 's 'j i current 'A' Dose column to the entry in the previous 'I' Dose column and record the new total integrated dose in the current 'I' Dose column. This will result in a running total being generated from left to right across the page. IIOTE : The integrated doses at all offsite locations are assumed to be I zero prior to an incident, therefore, the first 'I' Dose column I of an incident will equal the first 'A' Dose column. j 10.5 Circle the highest integrated exposure value for each major radius (0.65, 1.0, 2.0, 5.0, and 10.0 miles) and for both dose types (whole body and child thyroid). 11.0 PROTECTIVE ACTIO!! RECOMI!E!! DATIO!JS 11.1 Recommend protective action in affected offsite subsectors when trends indicate that: l 11.1.1 Whole body integrated dose may approach 1 R (1000 mR), or 11.1.2 Child thyroid integrated dose may approach 5 R (5000 mR). 11.2 Recommend protective action in affected onsite (exclusion area) sub-sectors when trends indicate that: n (~,) l 11.2.1 Whole body integrated dose may approach 0.5 R (500 mR), or 11.2.2 Child thyroid integrated dose may approach 1.0 R (1000 mR).

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WHOLE E00Y r CHILD T1fYROID 1

l l i i l l I l FR0!! (TI::E) I I l l l l 1 i t i U::TIL (TI::E) l I I l l 1 1 I i l i l CURATIO?! (HR) I l l l --l ,l IDosel a iL iDose i a i I iCosel a l I IDose Ia i If ll SECTOR /FACIUS IRatel DoselDoseJRate IDosel LccelFates CoselDose! Rate IDoselDosel l I I I I I l l l l l l l l l 1 1.0 mi i l I l l l 1 l I l l f I i i i i i l I i I I I I I i [ t 2 I I I I I I I I I I I l I { \\ l i i i l I I i i l i i l i I 3 I I I I I I I i l l l t 1 j l I I i i i i I i i i l i i I 4 I l i I I l I I I I I I i 1 i i i i l I i l i l i 1 5 I I I I I I I I I I I I I i i i i l i I i i i l i 1 i I 6 l I I I i l l t 1 I I I I I i i i l I i i i l i I l 7 l 1 I I i l 1 l I l I l 1 i i l I i i l i I i l i l i i l I i i l i ~I I I I I I i I 8 I I I I I I l 1 I i i l l l 1 9 I I I I I I I I I I I I I i 1 i i l i i i 1 l i l i l i 10 l I I I I l 1 1 I I I I I l i i l I i l I l i I i 1 I Il i I I l 1 1 I i i l l I I l l 1 I I I i l i i i l i i 12 i I I I I I i l i i I l i I i i l i I i i . 13 1 i I I I I l l l I i i i i e 1 i l I i i I i I I I l l l t I 14 i i i I I I I i i l i l l i 15 I l l 1 1 I I I I I I i i i i l i i i I i 1 I C_ __ _ _I _ l. I I I I I I I I Init:a1 I i I IIOIC : 111 d3se t'ates in grR/hr. All d;ses in mR. h";ewed By O -= I ( <asur '~'

r PLANT MANUAL SECTION: PROCEDURElWORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUME TRACKING pen TerMr'ic: A?m nnge TerrenpA TTn'f 1004.06 PAGE 10 of 12 O ARKANSAS NUCLEAR ONE aevision oAre 02 1ses, - CHANGE DATE ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One TITLE. I! TEORATED EX?CSURE WCRKSHEET l FOAM No. to04.06B REV PC f> Page 3 of 5 c WHOLE 500" c CHILD THYROID ll 1 1 I I I l l FR0!! (TII:E) l l l l l l l l 6 i i I U':TIL (!If:E) l I i l l l l 1 I I CURATIC!! (HR) i I i l I i ICesel a iI IDose ia i I I:osel a iI Itose i a I : l l SECTOR / RADIUS IRatel CoselDoselRate IDosel DoselRatel DoselDoselRate ItoselCosel I l l I l l 1 I i l i l l l l 1 2.0 mi l l I I I I I l I I I I i l I I I i i i i I 1 I I 2 I I I i l i I I l I I l I i i i i i i i i l i 17 j g I 3 I I I I I I I I l i I I I I i i l i l i i i l i i i i I 4 I I I I i l l I I I I i I i i e i I i l i i i i i I l 4 l 5 l l l l l l l l l l l l l l l 1 I i l 1 i i i l i i t I 6 l l l l I I I I I I l l [ } l 1 I i i l I i l I i i i I s 1 7 l l l l l l l ] I l l l l } l i i i l i i l l I I I i 1 s 1 8 I I I I I I i i l i I i I t i i l i I l I i i l i i k I 9 I t i I I I I I I l l I I e i 1 I i i i l i i i l l l l l 10 f I I I I i I i i l l I i i i i i l i i l I I i i i 1 11 I I I I I I I I I I I I I i i I i I i i i l I I i i i f I 12 I I i i I I l 1 i i l I i I I I i i i t i i I I I I i i ~ i i 6 1 a.r i 14 l l i I I I l l i l i I i i t l l 1 i 1 15 l l l l l l 1 1 I l I i i i I 1 I i i i l I 6 1 1 *> 1 I I 2 I I I I i 1 I I I l i l i i i . ul 4 l I I l l ::0TE: All J:se rates in rRei.r. All acses in PR. .- ev iewd E y \\ l V = ( m

r PLANT MANUAL SECTION: PROCEDURE /WOIK PLAN TITLE: NO: 0FFSITE DOSE RADIOLOGICAL PLUME TRACKING DRO TerTTOM9 AND D09F T Mm;R ATT OM 1904.06 ._ PAG E 11 of 12 ARKANSAS NUCLEAR ONE

==N DATE nmsm - CHANGE DATE ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One i TITLE. I"!EORATED EXPOSUFE WORKSHEE; j Fow No-1904.06E REV. v-l'C # iage 4 cf 5 c WHOLE BODY CHILD TH7ROID l 1 i i i l i I I FROM (TIEE) l l l l 1 l1 l i i l i I L" TII. ( TI".E l i i l i l l l i l I i l DUFATICN (HR) l l l l l l l lDosel a l I IDose i a l I lCosel a l I 6;ose Ia l Il l SECTOR / RADIUS IRatel CoselD:selRate IDosel DoselRatel DoselDoselRate IDoseltosel I I I I i i i i i t 1 i l I 1 5.0 mi l l I f l I I I i 1 I i l l 1 1 I l l 1 I I I l I l I i 1 2 l l [ l I I I i I I I O$ I I i i i l I i i I I 1 l l l 3 I I I I I I l 1 i I t l l l 1 1 1 i l i I I I I i 1 i I l I 4 I I I I I I I I I I I I l I I i l i l i I l l I I I i j l 5 I i I I I I I l i I I l j i i l I e I i i i i i I 6 i I 6 I I I I I I I I 1 I I I i I i i i i l i i l i i l l l l l 7 I I I I I i l I 1 i l I I I I I i i i i l I i I i i l_S I I I I I I I I i 1 I l 1 1 i i i I 4 l 1 I i i i I l I 9 I i i i l I i l l l I I I I I i i i l i I l I I I I I i 13 I I I i 1 I I l l 1 1 I I I l I l i l I l I 1 I I I I i 11 1 I I I i l i i l i I I i i i i l I l l I i i i l i i i 12 I i i I I I 1 l 1 1 I I I i i i l i i I i 1 l l i l 13 I I f 6 1 i i i f I I i i i i i i l i l b I i 4 i 14 I I 1 l i 1 I l l l l-i i i i i l l l l l i l l .5 1 i I I I I I I I I I I I i i l l I I I I i 16 l l l 6 i l i i l i i l I i i l i Initial i I I I I em IJO!E : All ase rates in M ihr. All ::0ses 1:1 :r P. Fiev iezea E'/ _. I 1 l ( ..g

W,t PLANT MANUAL SECTION: PROCEDURElWORK PLAN TITLE: NO: OFFSITE DOSE RADIOLOGICAL PLUME TRACKING FPO.?r e !!C AMD DOSF*IMTerPATTO*f 1904.06 PAGE 12 of 12 O ARKANSAS NUCLEAR ONE ar-a oat = omsm 1 CHANGE DATE I i 1 ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One ! FORM NO. le04.06S title. ; :TE"., RATED EXPD50RE UCRK5HEET FIV. v ' PC # Fage 5 of 5 i c WHOLE BCDY u CHILD TH7RDID 'I I I i i I ' 1 FFCt! (TI"E) l l l f f i l 1 1 I i ll . I Ui:TI:. (TI:"E) 1 I I I I l I i l i i DURATICf! (HR) l I 1 1 I I IDoses a iI lCose i a l I IDosel a i I IDose Ia i Il l SECTOR / RADIUS lRatel EoselDoselRate lDosel DoselRatel CaseltaselRate lDos :lDosel I i l i i l i i i i i i l I i 1 10.0 mil i I I I I I I I I I I I I I i i i l I i i i i i i i 3 1 2 I I I I I I I I I I i I l 1 I l I 4 I i i l I i l I i O ! 3 I I I I I i 1 I I I I I _ i_ 1 l l I i l I 1 I i 1 l l l l 4 I I i 1 1 1 I I I l i I i 1 i l i l i I I i l i I I 1 5 ) I I I I 1 I I i I I i f I i i l I i I i l i i l l l l l 6 I I 1 1 I I I I l t l I i i i i i i 6 1 1 i i i l l i ! 7 I I I I I I I I I I l l l l l l l l l l 1 I i i l I i a I i l i I I I l l l l l 1 I I i l l l l I I I I I i l 9 I I I i 1 1 l 1 l l l 1 i i I i i i l i i i l I i i 20 l i I I I I I I i i i i i l i i i l i i i i i i I i 11 I I I I I I I I I I I I I I l I i I l I l l l 1 I i 12 I I I I I I I I I I I I I i l i i i i I I I i l l I i 1 13 l 1 i i i i i l l I i i i l i i i i i I I i i 1 14 I I I i i l I I i l Er i i i f I I I I i i i i i t 15 I I I I I I i I I I I I ~l i l' I i i i i i i i l I l i l I I I I I 16 I I I I i I i i l i I I l Inital l l_ CM as NOTE: All dose rates in rRehr. All a ..= k .g

ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One FOW NO. mm RECORD 0F CHANGES AND REVISIONS 1000.06A 0FFSITE DOSE PROJECTIONS PROCEDURE REV. #12 FC #, V s ', s Safety Related YES $fNO O A,9 ' PROTECTIVE ACTION RECOMI!ENDATIC L ", <.}. ljI)

}s, s

PAGE REV PC# PAGE REV PC# PAGE REV PC# PAGE REV PC# PAGE REV PC# 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 APPROVED BY: APPROVAL DATE f k / '3 fr-. / [ / (/,, i. REQUIRED' EFFECTIVE DATE: (General Manage'r)

PLANT MA*':? AL SECTION: FROCEDURE/ WORK PLAN TITLE: NO: OFFSITE DOSE pon TrrTTn*Js PDnr DDnTreTTur MTTn*f DrenmfrMnnTT Asfc lona A7 PAGE 3 nr 17 ,o ARKANSAS NUCLEAR ONE aEv=oN , oATE no i,- / CHANGE DATE 1.0 PURPOSE This procedure provides a rapid and reproducible method for generating offsite protective action recommendations due to airborne radiological releases based upon current best estimates of plant and meteorological trends. 2.0 SCOPE 2.1.This procedure is primarily a screening procedure which can be used to determine if immediate action is needed, or if additional time is available to wait for improved conditions which are reasonably cer-tain to occur, but whose timing is unknown. 2.2 Some subjective factors are included, the importance of which must be evaluated at the time of the incident.

3.0 REFERENCES

3.1 References used in procedure preparation: 3.1.1 "Hanual of Protective Action Guides and Protective Actions 3 for Nuclear Incidents", Environmental Protection Agency; Revised February 1980 3.1.2 " Workbook of Atmospheric Dispersion Estimates," U.S. De-partment of Health, Education, and Welfare, D. Bruce Turner, 1970 3.1.3 "Heteorology and Atomic Energy", U.S. Atomic Energy Com-mission, D. H. Slade, July 1968 3.1.4 " Arkansas Nuclear One Evacuation Time Study", ANO Emergency Plan Appendix I, March 1981 3.1.5 1904.05, " Atmospheric Stability Class Determination" 3.2 References used in conjunction with this procedure: 3.2.1 1904.02, "Offsite Dose Projections - Pocket Computer Method" 3.2.2 1904.06, " Radiological Plume Tracking and Dose Integration" 3.2.3 1903.10, " Emergency Action Level Response" 3.3 Related ANO references: None O V

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE _ -- -,,-, - ~ _,-,,- -,-,,- a a s v w h w a 4, v 6 i w 4 6sv w.

a. awv4hwaavh 6aw 4 a va u
4ww, wa a av.iw as.

. v 1 (m ARKANSAS NUCLEAR ONE aEvision , vArr CHANGE ' DATE 4.0 RESPONSIBILITIES 4.1 The Shift Administrative Assistant is responsible for formulating protective action recommendations and communicating them to the Duty Emergency Coordinator for the initial notifications per procedure 1904.02, "Offsite Dose Projections - Pocket Computer Method" 4.2 The TSC staff as designated by the Duty Emergency Coordinator, or the ECC staff as directed, is responsible for formulating protective action recommendations for followup notifications as outlined by this procedure. 4.3 The ERO Technical Support Manager, or his designee, is responsible for preparing protective action recommendations for the remainder of a radiological incident. 5.0 LIMITS AND PRECAUTIONS 5.1 The " latest evacuation start time" calculated in this procedure al-lows one hour for preliminary governmental actions, sufficient time for evacuation, plus two hours for verification of evacuation. 5.2 If the current Emergency Action Level is " Unusual Event" or "None", (] this procedure need not be completed. s 5.3 Calculations in this procedure are conservative; however, actual offsite doses and decision times may be higher or lower, and new recommendations should be considered whenever updated information becomes available. 5.4 Integrated offsite doses are required as input for this procedure. This data may be obtained from: 5.4.1 Procedure 1904.06, " Radiological Plume Tracking and Dose Integration". 5.4.2 Direct measurements (i.e. from portable ion chambers, TLD's, etc.). 5.4.3 Integrated doses supplied by other computer models such as the NRC, state and GERMS. 6.0 EVACUATION REC 0!RIENDATICNS 6.1 Attach form 1904.07A to the most recent offsite dose projection forms (1904.02A-E). v

PLANT MANUAL SECTiON: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE ""02E'"IO'!S ""0C. "90 TECTI'.'E 7.CTIO" REC""E"D3 TI"2 'on'.0' PAGE 7 nr t o 6 ARKANSAS NUCLEAR ONE aavisiON oAri-c m,,m,e, t CHANGE ^ DATE ' ' ' ' ~ ~ 6.2 Complete form 1904.07A to determine the appropriate evacuation recom-mendation. 6.3 If box d) is checked in section 18 of form 1904.07A, consider a recom-mendation of delaying evacuation due to the factors listed after the evacuation recommendation statements. 6.4 If evacuation is recommended for any radius, rerun this procedure to determine protective action recommendations for the next larger evac-uation test radius (i.e., 0.65, 2.0, or 5.0 miles). 7.0 NOTIFICATIONS !!ake notifications and continue with offsite dose projections by re-starting procedure 1904.02, "Offsite Dose Projections - Pocket Computer Method" from Step 11.2. 8.0 ATTACH!!ENTS AND FORMS 8.1 Form 1904.07A - Protective Action Selection 8.2 Attachment 1 - X/Q Ratios O 1 l

r-PLANT M ANUAL SECTION: PROCEDUR'E/ WORK PLAN TITLE: NO: OFFSITE DOSE n h Fr^ terTTc?!9 conc. PROTFcTNF FTT O?! r ern""r' nATIO!!S 1004.07 C PAGE 4M 12 12:3 ~~ ARKANSAS NUCLEAR ONE

  • = ion CoATc omuss CHANGE DATE n

==.s M._ =.. _-~~s G_ t ARKANSAS POWER & LIGHT COMPANY Al Arkansas Nuclear One y ! '0* NO T'T" FROTECTIVE ACTION SELECT!tN I@4 A REv. "

  • PC Page 1 of 5 1.0 Check current Emergency Action level:

1 2 3 4 5 O O O O O O.K. U.E. ALERT S.E. C.E. { If box 1 or 2 was checked, check box a) in section 18.0 and terminate the procedure. 2.0 Is e qu e s t the forecast averaec airborne r a d i c.s c t i v e release rate f or t he duration of the incident, tosed upon considerations 01 system te nperature, pressure, planned remedial actions, probable failures, etc. (t actor abae current) from the Shift Greraticus Super viser: (factor) f 3.0 Request the forecast release unt u.uation time in heurs : n.w t he Shalt 5 Operations Supervisor and/c r t he Fecosery Manager. l4 (hours) 4.0 Refer to the table in Attacha,ent I which ipplies to the current.ht e and most closely approximates the current sky conditions. :;elec t t ric predicted 8 X/Q ratio which corresponds to the release continuation time f rem line 3.0. d 50TE: For c,vercast (i.e., 100% cloud cover) sky conditions, the predicted X/Q ratio is always 1.0. Predicted X/Q ratio:

5. 0 Record the current windspeed and direction:

\\ I kind directmen (from) CirTd speeed it:PH) ~ t;. 0 Obtain a weather forecast from the National k'eather Servicc i. (Note: A limited forecast may t e obtained by calling the Middle South System Dispatcher at extension 4582; request forecast for Arkansas ;onc l

5) and record the windspeeds faveraces, not gusts) and directions tore-cast for the duratson el the release period only:

g, - - - 8 J. l L a nTUir~c~c t icn ( f rom) Ci W 5 FeT illPH) Ti W l'oriod ~ b nd Speed (Milil Time l'eriod Wind Direction (from) i CC c. bind Disection tirom) Land Sp ed tMFHJ I n n.e 1*rried l ' i nd in r ec t ion t i r.on) b a nd Spre.1 tMPH) fim t e r a mt inE "JILhl 4L Mf Al'.LD '.llillN idSE M MEULS t') is thulfil.iAK) t 'h iblDN I w milos l l l Vw W.w [ M l

r r. PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: OFFSITE DOSE h D D 0_? r rT T O'!9 Proc. PpnTFFTTVr trTTnM prm"'W m3TTOUS 1004_07 i PAGE g n f 12 ARKANSAS NUCLEAR ONE aEvisioN oarE n",c,in, CHANGE DATE ARKANSAS POWER & LIGHT COMPANY j Arkansas Nuclear One TITLE PROTECTIVE ACTION SELECTICN lFOWNOgoo4,07A FEV. "' PC 1 Page 2 of 5 tJOTE : The National Weather Service uses the following forecasting periods: TCOAY - 6 a.m. to o p.m. Standard (7-7 daylignt) TONIGHT - 6 p.m. to 6 a.m. Standard (7-7 daylight) TC!!CRRCW - 6 a.m. to 6 p.m. Standard (7-7 daylicht) 1 TCMCERCW fi1GHT - 6 p.m. to 6 a.m. Standard (7-7 da/ 1ght) 7.0 Average the current windspeed from line 5.0 with all forecast *:indspeeds (use the midpaint of forecast ranges of windspeed f rem Secticn *;.0): } MFH I l 8.0 Davide the current windspeed in line 5) Ly the average windspeca from line 7.0 to obtain the vindspeed ration (r3tio) I 9.0 Based upon the current and ferecast wind directicns, check the boxes for I potentially affected sectors. Include any sectors covered by the transt-tien between ferecast wind directions. Affected Wind Directicn Downwind Direction Evacuation Secter tfrems (degreest Zone

1 5

343.5 - 11.3 Lcndon

2 SSW 11.3 -

33.8 Russellville

3 SW 33.3 -

56.3 Russellville - 4 usw 56.3 - 79.8 Russellville S.

5 W

73.3 - 101.3 Russellville

6 c ';w 101.3 - 1.

.S, Russellville

7 NW 123.3 - 14o.3 Fussellville
8 N!:w 14c.3 - 165.8 Dardanelle g

hr l L~ L t =

r.: NO: PROCEDURE / WORK PLAN TITLE: PLANT M ANU AL SECTION: 1964. 0~1 0FFSITE DOSE .ctm" perme"rtm ATv c"s ,nenver'tvr I PAGE 6 of 12 I t en ern-v m.c rene_

=

c oa's O m ss ARKANSAS NUCLEAR ONE DATE , CHANGE t ARKANSAS POWER & LIGHT COMPANYi J Arkansas Nuclear One 1 l nlus } FOAV NO 19:4.??A a W FL !C '!VE ACTIC' SELE;;;c: uv.. rc > Fage 3 cf 5 f Evacuati n townwind D1:ection j Affected Wind Directicn 2:ne idecrees) tfromi sector Lar dar.e lla 165.E - 191.3 N 9

n s aile 191.3 - 013.8 f'E 10 reisware 213.5 - ;26.3
E
11

'ela'etra 226.2 - !5.5 E::E

12
41a.are 258.5 - 251-3

} E s 13 Le r.d:n 221.2 - 133.3 ESE = 14 1:nden 2:3.3 - 226.3 i SE

15 L:r.::n 226.3 - 243.8 SSE a 16 s:t.:n r een-star.dird r adius f or which no pretectree I 10.0 Check tne smallest iny d:wnwind alrecticn:

mendat.cn has reen issued v 7 5.0 nr 2.0 mi 0.65 mi 11.0 C: pleta tha foll: ina **.;e a. ; :sta t er

  • he r adius trr-1; 9 a::ve s r. d

? in the note teicvs from the instructions c a.lu.mn. Z. colur.n. 4 I c e lu:r n - i i I C c E rr..- > I Current I tere ast t Current I forecast I i Caser.ite l Average ! ; tax... - r !!ax. In- ! i tegrated I tacrated I l (mRehr) l "oserate l j (ththr) l C:s* ! Dose imR)) t "c'.nwind l l ~ -?) I i Yes ::o t l I 3> wole I I 1 Ex:ee s I. 7 0 -R'

a i I

I edy l l i Exceeas l 1 r t l 5000 mR) . Di Ln ia i g 5 i J' I Thyroid i Form 19:4. 20. Se-* en 5.5 the formulas C3 C3;: attons for celuens.. and 4 sre ccmputea usir.: l s ?!CTE : Clumn i belsw l l = ^ ' en .1. x a :.a ~ x L.r.a 4.6 x ;;ne ;; 1 ra;2n. 3 l = e ~

m PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: 0FFSITE DOSE PRRTFrT T O?IS PROC. PROTECTIVE ACTION RFCO!!?fFfIDATIOf!S 1904.07 PAGE 7 of 12 ARKANSAS NUCLEAR ONE Revision 1 oarE 02/16/83 d CHANGE DATE ARKANSAS POWER & LIGHT COMPANY Arkansas Nuclear One TITLE pggIEc;I+;; ACT!CM SELECTIC?2 l FORM NO in34,;7; REV. e FC e Pace 4 of 5 (?:ote Continued) Column ic = col =c. Ib ) x ~ 1ne 2.J x line 4.. x Line 5.0 Column 3 = Zero for initial recommendation: or use 1904.C6 max. dose in an affected sector at the 'ppr:priate radius Column 4 4 < Column Za x Line 1.0) + Colen 2a = Column 4n = (Column Jb x Line 3.0) + Column ib 4 I j l 12.0 If both "no" bcxes were chec?:ed in the table above, check 'cx nu-ter bl i c / l in secticn 15.0 and terminate the procedure. I 13.] Calculate the FAG dose a:cumulation times 12.1 [1020 imR) - (mR)) + (mR/hr) = (hr) Column la Columra 2a) hele Sody 13.2 15000 (mR) -_ (mR)] e (mR/hr) = _ (hri Colwcn ab Column 20) Child Thyroid k 13.3 Enter the lesser cf line 13.1 cr line 13.22 (hr) 14.0 Estimate the evacuation time of potentially af fe:ted se:ters. Based upen the road ccnditicas forecast *or the end of the F AG dose accumulation time i in 13.3 above, circia *he evacuation time in the follouing table for each potentially evar .:ne ( f r om line 9.0). ( 51'?! F ri. Adverse Evacuat - ~Pm (5FM-6AM) 6AM !on.) Road Conditions b -n Week Mlaht Weekend (Weekday) E _Z_ar Lcndon 2.6 hrs. 2.7 hrs. 3.3 hrs. FJssellv111e '.? hrs .'.0 hrs. 5.4 hrs. 5.1 hrs. Lardanelle 2.1 hrs. 2.1 brs. 2.6 hrs. 2.1 hrs. CS -elaaare 2.1 hrs. 2.1 1.c:. 2.1 brs. 2.1 hrs. l m-b

m PLANT MANUAL SECTION: PROCEDURElWORK PLAN TITLE: NO: 1 OFFSITE DOSE DDOTecTTOMS Proc. PROTECTl w ACTIO!I RFcc!'??ENDATIONS 1904.07 PAGE 8 of 12 1 ARKANSAS NUCLEAR ONE aEvisioN 1 DATE 02/1e/83 H CHANGE DATE 1 4 g ARKANSAS POWER & LIGHT COMPANY g Arkansas Nuclear One F T;TLE-FROTECTI'.'E ACTION SELECTICN l FORM NO. 1904.07A REV. PC 8 Page 5 ef 5 15.0 Record the largest evacuaticn time circled in 14.0 above: (hrs) g 16.0 Calculate the latest protective action start time: (hr) - (hr) - 3.0 (hr) = fhours) Line 13.3 Line 15.0 17.0 If the time calculated on line 16.0 is negative. check bcx c) in secticn i 18.0. ctherwise check box d). 18.0 Use the data frem this sheet to fill in the blanks in the recommendation statement checked below = a) At the current release rates, no need for offsite protective action.. anticipated.

b) Eased upon ferecast meteorclocy and radiolocical release rates, off-site protective acticn is not recommended at this time.

a c) Based upon fcrecast meteorology, radiological release rates, and clearance time estimates. 1 mediate protective action of sectors [ from (0.65 to 2.0 )(2.0 to 5.0)( 5.0 to 10.0) l {5ee Line 9.0) (Circle one range See Line 10.0) miles is recommended. No additional time is available, o d) Eased upon forecast meteorolocy, radiological release rates, and clearance time estimates. prctective action of sectors from (0.65 to 2.0)(2.0 to 5.0)(5.0 to 10.0) (See Line 9.C) (Circle one range: see Line 10.0) miles may be recuired to start tefore _ i iCurrent time plus line lo.0)

  • 0ptional: Evacuation should be delayed due to:

Er n 00se distribution due to uniform gerecast wind changes.

Possibility of more rapid plant repairs.
Improved forecast driving condit1cns.

Emergency respense personnel / equipment currently unready. Performed By: / Initials Date Eeviewed Sy: __ Initials Date l b --- (m ( w

PLANT MANUAL SECTION: PROCEDURE / WORK PLAN TITLE: NO: 0FFSITE DOSE I Pr03ECTIC"c PonC T' DOTE"IVE A CTIO" REcn?""'"n3 "c 'N n'7 PAGE o n r 3.y n ARKANSAS NUCLEAR ONE aE-N DATE nm-1 CHANGE DATE V ATTACHMENT 1 Page 1 of 4 X/Q RATIOS TABLE 1A: CLEAR SKIES (Feb. 16 - Apr. 22) l Release Continuation Time Ranges'(Hr) l l Current Time 0-4 4-6 6-8 8-10 10-12 12-141 14-16 16-18 18-20 20-22 22-24l 0.50l l11PM-1 A!! 1.0 1.0 0.83 0.69 0.58 0.50 0.45 0.41 0.40 0.46 l 1 AM-3A!!l1.0l0.78l0.61l0.50l0.42l0.37l0.34l0.34l0.40l0.46l0.50l l 3 A!!- 5 All l 0.67l 0.48l 0.37l 0.31l 0.26l 0.24l 0.26l 0.34 l 0.40l 0.46l 0.50l 7 A!! l 0.68l 0.50l 0.41l 0.35l 0.36l 0.45l 0.75l 0.99 l 1.19l 1.34l 1.47l l 5 A!!- l 7 AM-9AIIl0.69l0.59l0.54l0.63l0.98l1.98l2.73l3.31 l3.77l4.16l4.04l l 9 A!!- 11 All l 1.0 ! 1.0 l 1.39l 2.51l 5.49l 7.62l 9.22l10.46' 11.4611.05l10.34l 10.34l l11A!!- 1PMl1.0l1.52l2.89l6.39l8.73l10.40 11.65 12.62 12.06 11.19 10.34l l 1 PM-3PMl1.78l3.52l7.74 10.27 11.96 13.17 14.07 13.29 12.21 11.19 5.52 5.93 6.22 5.79 5.25 4.77l4.37 4.04l l 3 PII-5PMl1.86l3.90l4.91 l 5 PM-7PIll1.95l2.27l2.43l2.53l2.59l2.36l2.11l1.89l1.72l1.57l1.47l (m l 7 P!!- 9Pl!l1.0l1.0l1.0l1.0l0.89l0.78l0.68l0.61 l0.56l0.52l0.50l w 9PM-11PMl1.0l1.0l1.0l0.86l0.74l0.64l0.57l0.51 l0.47l0.46l0.50l TABLE IB: 60% CLOUD COVER (Feb. 16 - Apr. 22) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 1 6-8 8-10 10-12 l12-14 14-161 16-18 18-20 20-22l22-24l 0.63l0.66l 1 AM 1.0 1.0 0.89 0.83 0.73 0.65 0.60l0.60 0.60 l11PM-3 A!! l 1.0 l 0.86l 0.79l 0.68l 0.60l 0.54l 0.55l 0.55 l 0.60l 0.63l 0.66l l 1 AI!- l 3 AM-5AMl0.79l0.72l0.60l0.52l0.47l0.48l0.50l0.55l0.60l0.63l0.66l l 5 AM-7A!!l1.0l0.78l0.68l0.61l0.68l0.72l0.84l0.94l1.01l1.07l1.12l l0.68l0.57l0.52l0.61l0.68l0.82l0.93l1.01 l1.08l1.13l1.12l l 7 A!!- 9 A!! l 9 All-11 AM l 1.0 l 1.0 l 1.43l 1.69l 2.17l 2.52l 2.78l 2.98 l 3.15l 3.11l 3.08l l1.0l1.57l1.86l2.41l2.78l3.04l3.23l3.39l3.32l3.27l3.08l l11AM-1 Pl! 3 PM l 1.86l 2.15l 2.76l 3.13l 3.38l 3.55l 3.68l 3.58 l 3.49l 3.27l 3.08l l 1 PM-l 3 Pl!- 5PMl1.0 l1.22l1.34l1.41l1.45l1.49l1.42l1.38l1.27l1.19l1.12l 7Pl!l1.34l1.45l1.51l1.54l1.57l1.49l1.42l1.31 l1.21l1.13l1.12l l 5 PM-l 7 PM-9PMl1.0l1.0l1.0 l1.0l0.93l0.88l0.80l0.73l0.68l0.67l0.66l [ l 9 PII-11 PM l 1.0 l 1.0 l 1.0 l 0.91l 0.86l 0.77l 0.70l 0.64 l 0.64l 0.63l 0.66l \\d NOTE: For release continuation times on the borderline between two ranges, use the higher range. Example - A six-hour continuation time would fall within the 6-8 hour range. l

PLANT MANUAL SECTION: PROCEDUR'EMIORK PLAN TITLE: NO: OFFSITE DOSE e m m.., c ,.1. m,..,e_ me__. m e,.m_ e_ r_ c_,1,.c ,-,1.m., _,.m,,. 1,_,e ,mm, m, .m. .m ARKANSAS NUCLEAR ONE aEvisioN

o^rE'-

o m-,,,,- i CHANGE ^ DATE ATTACHMENT 1 Page 2 of 4 X/Q RATIOS TABLE 2A: CLEAR SKIES (Apr. 23 - Aug. 22) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 l 6-8 8-10 '10-12 12-14: 14-16l 16-18. 18-20 '20-22 22-24l l11PM-1.0l0.83 0.67 0.57 0.49 0.44 0.39 0.39 0.44 0.49l 1 AM 1.0 l 1 AM-1.0l0.78l0.59l0.48l0.41l0.36l0.32l0.32l0.39l0.44l0.49l 3 A!! l 3 AM-5 A!! l 0.67l 0.46l 0.36l 0.29l 0.25l 0.22l 0.24l 0.32 l 0.39l 0.44l 0.49l l 5 AM-7A!!l0.57l0.42l0.35l0.31l0.28l0.38l0.70l0.94l1.14l1.30l1.44l 9AMl1.0l1.0l1.0l1.0l2.00l4.63l6.60l8.13l9.3610.3710.08l 7 AM-l 9 AM-11 A!! l 1.0 l 1.0 l 1.0 l 2.20l 5.23l 7.40l 9.0310.29 11.30 10.91 10.08l l11A!!- 1Pl!l1.0l1.0l2.50l6.08l8.47l10.17l11.45 10.91l10.08l 12.45 11.90 l 1 PM-3PMl1.0l3.0l7.35l9.96l11.70'12.95 10.08l 13.88 13.11 11.90 10.91 l 3 PM-5PMl4.0l9.4712.2013.8414.94 10.08l 15.72 14.63 13.11 11.90 10.91 l 5 PM-7PMl1.95l2.27 1.44l 2.43 2.53 2.59 2.36 2.09 1.87 1.70 1.55 _.) l 7 PM-9Pl!l1.0l1.0l1.0l1.0l0.89l0.77l0.68l0.60l0.55l0.50l0.49l l 9 PM-11 Pl! l 1.0 l 1.0 l 1.0 l 0.86l 0.73l 0.63l 0.56l 0.50 l 0.45l 0.44l 0.49l TABLE 2B: 60% CLOUD COVER (Apr. 23 - Aug. 22) llCurrentTime Release Continuation Time Ranges (Hr) l l l l 0-4 4-6 6-8 8-10 10-12 12-14114-16 16-18 18-20 20-22 22-24l l11PM-1 A!! l 1.0 1.0 0.89 0.76 0.67 0.58 0.54 0.50 0.51 0.55 0.59l l 1 AH-3AMl1.0l0.86l0.70l0.60l0.51l0.47l0.44l0.45l0.51l0.55l0.59l l 3 AM-5AMl0.79l0.60l0.50l0.42l0.38l0.36l0.39l0.45l0.51l0.55l0.59l l 5 AM-7AMl0.68l0.57l0.46l0.44l0.43l0.51l0.66l0.77l0.86l0.94l1.0l i l l 7 A*1-9AMl1.0l0.79l0.84l0.87l1.18l1.67l2.04l2.32l2.55l2.74l2.74l l 9 AH-11 AM l 0.69l 0.79l 0.84l 1.22l 1.78l 2.19l 2.49l 2.72 l 2.91l 2.90l 2.74l l11AM-1PMl1.78l2.04l3.28l4.98l6.12l6.93l7.54l8.01 l7.91l7.42l7.02l l 1 PM-3FMl1.0l1.57l2.33l2.79l3.09l3.31l3.47l3.39l3.15l2.95l2.74l l 3 Pl!- 5Pl!l1.86l2.78l3.23l3.51l3.69l3.82l3.68l3.39l3.15l2.90l2.74l l 5 PM-7PMl1.34l1.45l1.51l1.54l1.57l1.49l1.34l1.24l1.13l1.06l1.0l l 7 P!f-9PMl1.0 l1.0l1.0 l1.0l0.93l0.82l0.75l0.67l0.63l0.59l0.59l /7 l 9 PM-11 Pl! l 1.0 l 1.0 l 1.0 l0.91l0.80l0.71l0.63l0.59l0.55l0.55l0.59l _/ ! NOTE: For release conU nuation times on the borderline between two ranges, use the I higher range. Example - A six-hour continuation time would fall within the j 6-8 hour range.

PLANT MANUAL SECTION: PRdCEDUR$ WORK PLAN TITLE: NO: i 0FFSITE DOSE ) nonirrTyn*rc nonc nonTerTTur ' rT T n* f prrnMitrMnaTTnMC inna n7 PAGE 33 nf 1y o ARKANSAS NUCLEAR ONE aEvisioa > o*TE n,/, cia, j CHANGE DATE ATTACHMENT 1 Page 3 of 4 X/Q RATIOS TABLE 3A: CLEAR SKIES (Aug. 23 - Oct. 25) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 6-8 8-10 10-12 '12-14 14-16 16-18 18-201 20-221 22-24l 0.50l l 11 PM - 1 AM 1.0 1.0 0.83 0.69 0.58 0.50 0.45 0.41 0.40 0.46 l 1 AM-3AMl1.0l0.78l0.61l0.50l0.42l0.37l0.34l0.34l0.40l0.46l0.50l l 3 AM-5AMl0.67l0.48l0.37l0.31!0.26l0.24l0.26l0.34l0.40l0.46l0.50l l 5 AM-7AMl0.68l0.50l0.41l0.35l0.36l0.45l0.75l0.99l1.19l1.34l1.47l l 7 AM-9 A!! l 0.69l 0.59l 0.54l 0.63l 0.98l 1.98l 2.73l 3.31 l3.77l4.16l4.04l 11.05l10.34l l 9 AM-11 AM l 1.0 l 1.0 l 1.39l 2.51l 5.49l 7.62l 9.22 10.46 11.46 11.1910.34l l11AM-1Pl1l1.0l1.52l2.89l6.39l8.7310.4011.65 12.62 12.06 13.17 14.07 13.29l12.2111.19 10.34l l 1 PM-3PM!1.78l3.52l7.7410.2711.96 4.04l l 3 PM-5PMl1.86l3.90l4.91 5.52 5.93 6.22 5.79 5.25l4.77 4.37 7PMl1.95l2.27l2.43l2.53l2.59l2.36l2.1_1_l1.89l1.72l1.57l1.47l 5 PM-( _) l 7 PM-9PMl1.0l1.0l1.0l1.0l0.89l0.78l0.68l0.61 l0.56_l0.52l0.50l l 9 PM-11 Pl! l 1.0 l 1.0 l 1.0 l 0.86l 0.74l 0.64l 0.57l 0.51 l0.47l0.46l0.50l TABLE 3B: 60% CLOUD COVER (Aug. 23 - Oct. 25) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 6-8 8-10 10-12 12-14 14-16 16-18 18-20 20-22 22-24] 0.66l l 11 P!f-1 A!! 1.0 1.0 0.89 0.83 0.73 0.65 0.60 0.60 0.60 0.63 l 1 AI!- 3A!!l1.0l0.86l0.79l0.68l0.60l0.54l0.55l0.55l0.60l0.63l0.66l l 3 A!!- 5A!!l0.79l0.72l0.60l0.52l0.47l0.48l0.50l0.55l0.60l0.63l0.66l l 5 AH-7AM_l1.0l0.78l0.68l0.61l0.68l0.72l0.84l0.94l1.01l1.07l1.12l l 7 All-9 All l 0.68l 0.57l 0.52l 0.61l 0.68l 0.82l 0.93l 1.01 l1.08l1.13l1.12l l 9 All-11 A!! l 1.0 l 1.0 l 1.43l 1.69l 2.17l 2.52l 2.78l 2.98 l 3.15l 3.11l 3.08l l 11 All-1PMl1.0 l1.57l1.86l2.41l2.78l3.04l3.23l3.39l3.32l3.27l3.08l 3Pl!l1.86l2.15l2.76l3.13l3.38l3.55l3.68l3.58l3.49l3.27l3.08l l 1 PM-l 3 P11-5Pl!l1.0l1.22l1.34l1.41l1.45l1.49l1.42l1.38l1.27l1.19l1.12l l 5 PM-7PMl1.34l1.45l1.51l1.54l1.57l1.49l1.42l1.31 l1.21l1.13l1.12l l 7 PM-9PMl1.0l1.0l1.0l1.0l0.93l0.88l0.80l0.73l0.68l0.67l0.66l l 9 Pfl-11 PM l 1.0 l 1.0 l 1.0 l 0.91l 0.86l 0.77l C.70l 0.64 l 0.64l 0.63l 0.66l f~]/ ( ! NOTE: For release continuation times on the borderline between two ranges, use the higher range. Example - A six-hour continuation time would fall within the 6-8 hour range.

f PLANT MANUALSECTl' N: PROCEDUR55VORK PLAN TITLE: NO: O OFFSITE DOSE T ' ^ ~7 PROJECTIONS PROC. PROTECTI"E '.CTIO" nECCg"f'g'D'TI'"? o ARKANSAS NUCLEAR ONE aswsion 7 oATE - ~, - ' ^"' ~ CHANGE ^ DATE Q/ ATTACHMENT 1 Page 4 of 4 X/Q RATIOS TABLE 4A: CLEAR SKIES (Oct. 26 - Feb. 15) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 6-8 8-10l10-12 12-14 14-16 16-18 18-20 20-22 22-24l 0.66l l11PM-1 Mt 1.0 1.0 1.0 0.86 0.74 0.64 0.58 0.55 0.59 0.63 l 1 A!!- 3AMl1.0l1.0l0.83l0.69l0.58l0.52l0.49l0.55l0.59l0.63l0.66l l 3 AM-5 A!! l 1.0 l 0.78l 0.61l 0.50l 0.44l 0.42l 0.49l 0.55 l 0.59l 0.63l 0.66l l 5 M1-7AMl0.67l0.48l0.37l0.32l0.33l0.42l0.49l0.55l0.59l0.63l0.66l l 7 AM-9 MI l 0.68l 0.50l 0.46l 0.57l 0.96l 1.24l 1.45l 1.61 l1.74l1.85l1.94l l 9 M1-11 M1 l 0.69l 0.79l 1.28l 2.61l 3.51l 4.14l 4.62l 4.99 l 5.29l 5.53l 5.30l 13.17 14.07 14.78 15.3414.5813.58l l11AM-1Pl!l1.78l3.52l7.7410.27l11.96 3PMl1.86l3.90l4.91 5.52l5.93 6.22 6.44 6.61 6.22 5.75 5.30l 1 PM-l 3 PM-5PMl1.95l2.27l2.43l2.53l2.59l2.64l2.67l2.49l2.27l2.08l1.94l 7PMl1.0l1.0l1.0l1.0l1.0l1.0l0.91l0.82l0.75l0.69l0.66l p 5 Pl!- l 7 PM-9 P11 l 1.0 l 1.0 l 1.0 l 1.0 l 1.0 l 0.90l 0.80l 0.72 l 0.66l 0.63l 0.66l l 9 PM-11 Pl! l 1.0 l 1.0 l 1.0 l 1.0 l 0.89l 0.78l 0.68l 0.62 l 0.59l 0.63l 0.66l TABLE 4B: 60% CLOUD COVER (Oct. 26 - Feb. 15) l Release Continuation Time Ranges (Hr) l l Current Time 0-4 4-6 6-8 8-10 10-12 12-14 14-16 16-18 18-20 20-22 22-24l 1 A!! 1.0 1.0 1.0 0.91 0.86 0.77 0.74 0.73 0.75 0.78 0.79l l11PM-l 1 All-3 A!! l 1.0 l 1.0 l 0.89l 0.83l 0.73l 0.71l 0.69l 0.73 l 0.75l 0.78l 0.79l l 3 M1-5 M1 l 1.0 l 0.86l 0.79l 0.68l 0.66l 0.65l 0.69l 0.73 l 0.75l 0.78l 0.79l l 5 M!- 7AMl0.79l0.72l0.60l0.59l0.59l0.65l0.69l0.73l0.75l0.78l0.79l l 7 MI-9AMl1.0l0.78l0.84l0.87l1.00l1.10l1.17l1.23l1.27l1.31l1.34l l 9 AM-11 MI l 0.68l 0.78l 0.84l 1.01l 1.12l 1.20l 1.26l 1.31 l1.34l1.37l1.34l l 11 A!!- 1PMl1.86l2.15l2.76l3.13l3.38l3.55l3.68l3.79l3.87l3.76l3.68l l 1 PM-3FMl1.0l1.22l1.34l1.41l1.45l1.49l1.51l1.53l1.48l1.43l1.34l l 3 PM-5PMl1.34l1.45l1.51l1.54l1.57l1.58l1.60l1.53l1.48l1.37l1.34l l 5 PM-7PMl1.0l1.0 l1.0l1.0l1.0l1.0l0.94l0.90l0.84l0.81l0.79l l 7 PM-9PMl1.0l1.0l1.0l1.0l1.0l0.94l0.89l0.82l0.79l0.78l0.79l l 9 PM-11 Pl! l 1.0 l 1.0 l1.0l1.0l0.93l0.88l0.80l0.77 l0.75l0.78l0.79l ( V/ NOTE: For release continuation times on the borderline between two ranges, use the Example - A six-hour continuation time would fall within the higher range. 6-8 hour range. -}}

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