ML20137Z629

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Evacuation Plan Update for Seabrook Station, Progress Rept 5,preliminary Edition
ML20137Z629
Person / Time
Site: Seabrook  NextEra Energy icon.png
Issue date: 02/18/1986
From:
KLD ASSOCIATES, INC.
To:
Shared Package
ML20137Z542 List:
References
KLD-TR-174D, NUDOCS 8603130080
Download: ML20137Z629 (15)
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KLD TR174D EVACUATICN PLAN UPDATE for Seabrook Station i

Seabrook, New Hampshire Procress ReDort No. 5

[ PRELIMINARY EDITION

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, Prepared for 1 ) The Commonwealth of Massachusetts Civil Defense Agency and Office of Emergency Preparedness

by i KLD Associates, Inc.

300 Broadway Hutington Station, NY 11746 l

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i l February 18, 1986 l

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8603130000 860311 l PDR ADOCK 05000g 3 F .

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TABLE OF CONTENTS Page INTRODUCTION 11 SCOPE OF FIFTH PR. OGRESS REPORT 1 EVACUATION TIME ESTIMATES 2 LIST OF TABLES Hot Title Page 12 Description of Evacuation Scenarios 1-10 3 25 Identification of the Seabrook Staging 4 Emergency Planning Areas (ERPA) 14 Towns Included Within ERPA 6 26 Estimated Times to Evacuate from within 2 Miles 7 of Seabrook Station after the Order to' Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios 27 Estimated Times to Evacuate from within 5 Miles 8 l (-( )

of Seabrook Station after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios 28 Estimated Times to Evacuate from within 10 Miles 9 of Seabrook Station after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios 29 Estimated Times to Evacuate from within the 10 l

Seabrook Station EPZ after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios 30 Estimated Time to Evacuate from within the 11 Indicated Region of the Seabrook Station EPZ after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios l

LIST OF FIGURES Enz Title Eaga 28 Map of EPZ Uelineating all Emergency Response 5 Planning Areas (ERPA)

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w..w a_, ..- _ ~ - -> e . .- = =.m. . s . e-w ma . w . . . c-(]gg 1. INTRODUCTIQH .

This is the fifth of a series of Progress Reports which document the activities performed, and the results obtained, in connection with a study to update the existing evacuation plan for the Seabrook Station.

The practice of publishing progress reports for distribution departs, somewhat, from the conventional practice of completing the study before publishing a Final Report. We have chosen this approach for the.following reasons:

1. It is hoped that the early publication of these reports would prove of value to other planning groups.
2. Hopefully, these reports will also stimulate responses from all involved public agencies, citizen planning committees and town officials.
3. The timing of these progress report publications will enable us to review all such responses -- both constructive and critical -- prior to the completion of.

the study. Any responses which are received in a timely manner and judged to contribute to the accuracy and/or reliability of the final study results, will be incorporated into the evacuation plan development, prior to the publication of the Final Report.

(C; This approach is endorsed by the Massachusetts civil Defense Agency (MCDA), which is sponsoring this activity.

It is assumed that the reader also has a copy of the prior progress report, since many references are made thereto. Also, the section numbers of this report are a continuation of'those of the prior report so that:

o continuity of text is preserved o Reference by future Progress Reports to the earlier reports are clear and unambiguous.

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18. SCOPE OF FIFTH PROGRESS REPORT

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This preliminary report describes the activities undertaken since the publication of the fourth Progress Report.

Specifically, time estimates (ETE) were computed for a broad range of evacuation scenarios, for each of 9 regions within the Seabrook Station Emergency Planning Zones (EPZ). These computations use the current estimates of employment, the computed trip generation time distributions and apply the recommended traffic management policies.

The traffic management policies have been reviewed by almost all the police chiefs of the communities within the EPZ. Many of these policies, in fact, were suggested by these police chiefs; all of these suggestions are incorporated within the evacuation plan. Detailed descriptions of these control policies will be published shortly.

This greliminarv edition is published so as to present the Evacuation Time Estimates (ETE) as soon as they were' computed. A final edition of this Progress Report, complete with all details (see Table 13) and with selected graphical representations (see Figures 20-27) will be published as,soon as possible.

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19. EVACUATION TIME ESTIMATES (ETE)

) This section presents the current results of the computer analyses using the IDYNEV System. These results cover:

o Ten evacuation scenarios as described in Table 12.*

o Nine regions within the Seabrook Station EPZ, as defined in Table 25. Each region consists of one or more Emergency Response Planning Areas (ERPA). These ERPA are shown on Figure 28*; the communities comprising each ERPA are listed in Table 14*.

These ETE for each Region-Scenario combination are presented in Tables 26-30:

o Table 26 presents the ETE for the two-mile area about Seabrook Station.

o Table 27 presents the ETE for the five-mile area about Seabrook Station.

o Table 28 presents the ETE for the ten-mile area about

{ Seabrook Station.

o Table 29 presents the ETE for the entire Emergency Planning Zone (EPZ) of Seabrook Station.

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o Table 30 presents the ETE only for the regions ordered to evacuate. For example, if it is determined that everyone within 5 miles of the Station should evacuate, then all communities within Region 5 (ERPA A, B, C, D) will be ordered to evacuate. The ETE of interest, then, are those within 5 miles of the Station -- the area between the five-mile area and the EPZ boundary is outside the area of l

potential risk.

The values of ETE are obtained by interpolating from IDYNEV output, which are generated at 30-minute intervals, then rounding to the nearest 5 minutes. Thus, the numerical precision of these I,

values is within 110 minutes.

1 r? *These Tables and Figure are abstracted from Progress Report No.

! 2 and included herein for the reader's convenience.

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O~ O O Table 12. Description of Evacuation Scenarios 1-10 Scenario Season Day _ Time Weather Comments 1 Surme'r Weekend Mid-day Good Beach area population at capacity. Employees are at 70 pet. of mid-week in towns with beach areas, ' 40 pet.

in remaining towns. Tourists fill available seasonal and overnight facilities, with half of them at the beach areas.

i 2 Sustner Weekend Mid-day Rain As above. Sudden rain occurs with beach population at capacity concurrent with accident at Seabrook Station.

3 Sum:ner Mid-week Mid-day Good Beach area and tourist population at 75 pct, of capacity. f Employees are at 100 pet. of mid-week work force.

l 4 Sum:ner Mid-week Mid-day Rain As above. Sudden rain occurs.

l 5 Off-Season Mid-week Mid-day Good Touriet population at 50 pet. of yearly capacity (i.e.

I facilities which remain open the entire year) . No beach area transients. Employees at 100 pct.

) 6 Off-Season Mid-week Mid-day Rain As above, but for inclement (rain) weather.

7 Off-Season Mid-week Mid-day Snow Conditions the same as for Scenario 5 except that there is inclement weather (snow) . Evacuees must clear driveways.

8 Off-season Mid-week Evening Good Tourist population at 50 pct. of yearly capacity. No Weekend All day beach area transients. Employees at 25 pct. of mid-week, mid-day.

9 Off-Season Mid-week Evening Rain As above, but for inclement (rain) weather.

Weekend All day 10 Off-season Mid-week Evening Snow As above, but for inclement (snow) weather. Evacuees Weekend All day must clear driveways.

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Table 25. Identification of the Seabrook Station Emergency Planning Areas (ERPA)

Recion Radius ERPA Desianation 1 EPZ bdry. A-G Entire EPZ

2 EPZ bdry. A, D, G North Region 3 EPZ bdry. A, C, F West Region 4 EPZ bdry. A, B, E South Region 5 Five Miles A, B, C, D Entire Five-Mile Region 6 Five Miles A, D North Region 7 Five Miles A, C West Region 8 Five Miles A, B South Region 9 Two Miles A Entire Two-Mile Region NOTE
All beach areas are always evacuated, including those outside the Region ordered to evacuate.

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(. Table 14. Towns Included Within ERPA ERPA Towns Comprisina Indicated ERPA A Hampton Falls, Seabrook

. B Amesbury, Salisbury C Kensington, South Hampton D Hampton, North Hampton l E Merrimac, Newbury, Newburyport, West Newbury F Brentwood, East Kingston, Exeter, Kingston, Newfields, Newton G Greenland, New Castle, Portsmouth, Rye, Stratham

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F Table 26. Estimated Times to Evacuate from within 2 Miles of Seabrook Station after the Order to Evacuate s frou the Indicated Regions, for the Individual Evacuation Scenarios Region Scenario 1 2 1 1 1 1 2 g 2 l 1 5:50 5:25 4:50 5:50 5:50 4:50 4:50 5:50 4:50 2 7:35 7:35 6:15 3 5:40 4:35 4:35 5:40 5:40 4:35 4:35 5:40 4:35 4 7:25 7:25 6:05 5 4:30 3:25 3:35 4:30 4:30 3:35 3:35 4:30 3:35 6 5:50 5:50 4:15 7 6:40 6:40 5:15

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2 Table 27. Estimated Times to Evacuate from within 5 Miles

( of seabrook Station after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios Region Scenario 1 1 1 1 1 1 1 1 1 1 6:10 5:25 5:10 6:10 6:10 5:10 5:10 6:10 5:10 2 7:50 7 50 6:30 3 5:55 4:45 4:45 5:55 5:55 4:45 4:45 5:55 4:45 4 7:40 7:40 6:20 5 4:50 4:00 4:00 4:40 4:50 4:00 4:00 4:40 4:00 6 6:05 6:00 4:35 ,

7 7:00 7:00 5:35 8 4:40 3:35 3:35 3:35 3:35 3:35 3:35 3:35 3:35 9 6:00 5:05 4:00 10 6:10 5:30 4:35 i

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Table 28. Estimated Times to Evacuate from within 10 Miles i

of seabrook Station after the Order to Evacuate e

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from the Indicated Regions, for the Individual t Evacuation Scenarios 4

Region Scenario 1 1 2 1 1 1 1 1 2 1 6:15 5:50 5:10 6:10 6:10 5:15 5:10 6:10 5:10 '

2 8:40 7:55 6:40 3 6:05 5:55 4:50 6:00 6 05 4:50 4:50 6:00 4:50 4 7:45 7:45 6:25 5 5:10 5:05 4:00 5:10 5:05 4:00 4:00 4:45 4:00 6 7:00 6:40 4:40 i i

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8 4:40 4:10 3:40 3:40 3:40 3:35 3:40 3:40 3:40  !

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Table 29. Estimated Times to Evacuate from within the I Seabrook Station EPZ after the Order to Evacuate from the Indicated Regions, for the Individual Evacuation Scenarios Region '

scenario 1 1 1 1 1 1 1 1 2 1 6:40 6:15 5:15 6:10 6:20 5:15 5:15 6:10 5:15 2 8:45 7:55 6:45 3 7:10 7:05 4:50 6:10 6:10 5:15 4:50 6:10 4:50 1 4 9:40 7:45 6:25

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5 6:00 6:00 4:05 5:30 5:05 4:05 4:05 4:45 4:05 6 7:30 6:40 4:40 7 8t00 7:00 ,

5:40 8 5:00 4:40 4:00 4:00 4:05 4:00 4:00 4:00 4:00 9 6:05 5:10 4:05 10 6:30 6:00 5:00 r

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. . . . . n- -w. , . ~ a w ..s x m a Tabte 30. Estimated Times to Evacuate from within the C) the order to Evacuate from the Indicated Regions,r. i !

for.the Individua1 Evacuation Scenarios i

Region 1

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scenario 1 1 1 1 1 1 2. 1 2 -

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2 8:45 7:50 6:15 1

3 7:10 7:05 4:50 6:10 5:55 4:45 4:45 5:55 4:35 I

. 1 4 9:40 7:40 6: 05 1 1

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, 5 6:00 6:00 4:05 5:30 4:50 4:00 4:00 4:40 3:35 t

6 7:30 6:00 4:15  ;

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i 8 5:00 4:40 3:40 4:00 3:35 3:35 3:35 3:35 3:30 9 6:05 5:05 3:35 i O 10 6 35 5:30 4:30 (  !

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EVACUATIO!! PLA!! UPDATE for Scabrook Station Saabrook, liow Hampshiro l

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I Proc 7n'as Report !Touq  !

PRELIMIlfARY EDITIO!r '

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l Prepared for

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The Commonwealth of Massachunotto  :

Civil Defonna Agoney and Offico of Emergency Preparodneca

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i by KLD Annociaten, Inc. '

300 Droadwa  ;

Hutington Station,y !!Y 11*/46 i O lierch 2, 198 >

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