ML20196G529
| ML20196G529 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/07/1988 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8803090224 | |
| Download: ML20196G529 (22) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 SN 157B Lookout Place MAR 071988 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of
)
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT (SQN) UNITS 1 AND 2 - METEOROLOGICAL DATA TAPE AND EVACUATION TIME ESTIMATES This is in response to G. G. Zech's (NRC) letter to S. A. White dated January 4, 1988 regarding meteoroloS cal data tape and evacuation time-i estimates for SQN.
Enclosed is the requested information.
contains the annual hourly meteorological data tape of onsite observation at SQN.
In accordance with a telephone conversation with Eileen McKenna on January 20, 1988, the year with the highest recoverability over the last three years was chosen.
Enclosuro 2 (Appendix 1, Annex H, of the Tennessee Multi-Jurisdictional Radiological Emergency Response Plan) contains the moat recent study of evacuation time estimates for the area around the SQN site, and the assumptions and methodology used to develop the evacuation time tables, as well as maps showing the sectors and evacuation routes. This study was completed by the Tennessee Department of Transportation on June 1, 1987.
If you have any questions or if we can be of further assistance, please telephone Gary S. Hartman at 615/751-2699.
Very truly yours, TENNESSEE VALLEY AUTHORITY
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R. Gr Nuclear Licensing and Regulatory Af f ai'ts Enclosures cc:
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DCD An Equal Opportunity Employer n.
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' U.S. Nuclear Regulatory Connission 07 M cc (Enclosure 2 only):
Mr. K. P. Barr, Acting Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. G. G. Zech, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Sequoyah Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 Tennessee Emergency Management Agency 3041 Sidco Drive Nashvilla, Tennessee 37204
4 ENCLOSURE 2
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APPENDIX 1, ANNEX H EVACUATION TIME ESTIMATES WITH THE PLUME EXPOSURE PATHWAY EMERGENCY PLANNING ZONE I.
LOCATION -
The Tennessae Valley Authority has constructed a nuclear plant approximately ten (10) miles Nort.heast of Chickamauga Dam on the Tennessee River near Chattanooga, Hamilton County.
The 10 mile EPZ Plume Area encompasses a part of Chattanooga, Soddy-Daisy, and a part of Bradley County.
A.
SITUATION 1.
Depending on the type of danger to the public, an alert will be
.(
broadcast to the population to evacuate the 2 mile pathway, and
-A sectors within the 5 mile pathway, or 10 mile EP."'.
2.
The following calculations were made for each of these evacuating areas.
The evacuation times include those for permanent residents, transients, school children, and the transportation dependent population. The evacuation times were determined assuming each household knows beforehand what to do and which evacuation route to follow.
B.
ASSUMPTIONS 1.
An auto occupancy factor of 2.5 persons per vehicle was used.
This figure was taken from the latest edition of the Institute of Transportation Engineer's Handbook.
2.
Roadway capacities were determined utilizing procedures in the
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3.
Travel times ~ for motorists to clear the sector boundaries for obtaining the maximum evacuation time are:
If vehicle population is less than 100, travel time is 5 a.
minutes per mile of travel within the sector.
b.
If vehicle population is greater than 100, travel time is 10 minutes per mile plus 2.0 seconds per vehicle headway. This l
rate is derived from assuming 20 miles per hour speeds on local roads.
4.
Travel speeds on Major Evacuation Routes were assumed to be 15 to 20 miles per hour. Most of the Evacuation Routes were local roads with low capacities.
With the expected high evacuation volumes, the roadway wou!d be under forced flow conditions, therefore,-lower speeds.
5.
The maximum preparation time of 105 minutes was based on times for people in Southeast Hamilton County to get home ~and 4
have approximately 30 minutes to prepare to leave. This time is reflected in ALL distribution curves. A preparation time of 30 minutes was added to the transient population evacuation times.
C.
METHODOLOGY The methodology used is in accordance with the provision of the "Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants" as published by the NRC. This is a conservative method assuming that events are distributed.
The probability distribution curve showing the percentage of the population volume evacuated over time is referred to as a Distribution Curve.
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Sector populations were used to assign a percentage of each sector -vehicle population to each major route, assuming radial dispersal.
2.
A distribution curve was drawn for each sector using the sector vehicle population and the sector maximum travel time plus the preparation time.
These maximum times were calculated as outlined in B-3a and 3b above.
3.
The greatest travel time, by combining sector evacuation time plus travel time along the major evacuation route from the intersection of the sector to the edge of the 2 mile,5 mile or 10 mile area, was used as the maximum travel time for that major evacuation route.
4.
A distribution curve for the 2 mile, 5 mile, and 10 mile area was determined by the following:
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a.
For a selected time on the distribution curve, the corresponding percentage was converted to a vehicle volume for each major evacuation route.
b.
These volumes were added and converted back to a percentage vehicle volume in that area, This established a point on the respective distribution curve.
c.
This was repeated for various times to establish other points to plot the curve.
3.
Since the evacuation times for the 2 mile area, 5 mile area, and 10 mile area will only be used by the emergency ~ evacuation personnel, only these curves are included in the report. (See Tab E this Annex.)
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Outlying section population that could be evacuated faster on local routes were done separately.
7.
A summary of the results of the evaucation time for each major route within the 2 mile area, 5 mile area, and 10-mile area are shown in Tab F, this Annex.
11.
DEMAND ESTIMATION The population in the affected areas are of three categories which include permanent residents, transient population, and special facility population.
A.
PERMANENT RESIDENT The permanent resident population are shown in Tab C, this Annex.
B.
TRANSIENT POPULATION The transient population include the tourists and factory employees in the area.
An estimate of the tourists was obtained by tabulating the maximum daily traffic count from Chester Frost County Park, Harrison Bay State Park, and Booker T. Washington State Park. From a 24-hour count during a July weekend, it was estimated that 7,000 people could be at the Parks at the same time. It was also estimated that 500 people per mile of river per sector could be on or by the lake. The Volunteer Army Ammunition Plant in sector C-7 has recently been reactivated employing 235 people. This number is expected to rise. There are no additional factories in the Sequoyah 10 mile EPZ. An auto occupancy factor of 3.0 persons per vehicle was used. This is from the source stated under the "METHODOLOGY" section I, paragraph C, this appendix.
The transient population by sector is listed in Tab D, this Annex.
C.
SPECIAL A tabulation of the school children enrollment in Bradley and Hamilton H-18 1.
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Counties is continued in each county evacuation appendix.
The evacuation times for the school children include bus drivers notification and response times, loading time, and travel time to the paired school The evacuation time for the transportation dependents involved tiie time for buses to travel the bus routes during the permanant population evacuation.
The estimated evacuation times are shown on the enclosed summary sheet.
III.
ADVERSE WEATHER CONDITIONS Because of the assumed travel speeds over the major routes, the evacuation times for day or night are re!stively the same.
Under adverse weather conditions such as flood or snow, the extra add on times are:
2 Mile Area -- 20 Minutes
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5 Mile Area - 30 Minutes 10 Mlle Area --- 45 Minutes IV.
CONFIRMAT!ON TIME The confirmation will be handled by local law enforcement patrols. The confirmation times for the different areas are:
2 Mile Area -- 1 Hour 30 Minutes 5 Mile Area -- 2 Hours 15 Minutes 10 Mile Area -- 3 Hours H-19 w.
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ENCLOSURE 1, TAB B, APPENDIX 1, ANNEX H s ROADWAY CHARACTERISTICS NUMBER OF CAPACITY EVACUATION DEMAND SEGMENT LANES TYPE VEH/ HOUR PERMANENT & TRANSIENT COMMENTS (Both Dir.) (1 Dir.) POPULATION (Total Vehicles) 2 MI. 5 MI, 10 Mt. A-1 2 Rural 1317 1009 2005 A-2 2 Rural 1042 5575 A-3 2 Rural 391 132 Steen & Winding B-4 2 Rural 1232 233 1179 1715 Uphi'.I Grade B-5 2 Rural 1141 612 B-6 2 Rural 1076 317 ?ll B-7 2 Rura! 310 712 1883 Steep & Winding C-3 2 Rura' 1003 2220 4323 Uchill Grade ~ ( C9 2 Rural 15S3 332 7-Lane-Narrow l_ D-10 2 Urban 939 2093 4063 Limits Capacity i D-il 2 Urban 333 -~ 2523 l D-12 4 Urban 1600 ( 3323 On & Off Ramn 5ector A-1 _2 Rural Outside 133 Controls.8 x 2000 5ector A-2 2 Urban Outside 2A0 _ 5ector A-3 2 Outside _ dector A-4 2 Rura! Outside 33 _Q2 5ector A-5 2 Rural Outside 147 Sector A-6 2 Rural Qutside 217 @ ~ctor B-2 2 Rural Outside c9 j _ Sector B-3 2 Rural Outside ,,_ 14 _ Sector 8-5 2 Rural Outside , _J _40 Sector B-7 2 Rural Outside 100 _~3ector C-1 2 __ Rural Outside 74 . Sector C-5 2 Rural Outside 173 i Sector C-6 2 Rural Outside 334 _ Sector C -7 7 Udan qutside 250 .' Sector D-3 2 Rural Outside 163
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TAB C,' APPENDIX 1, ANNEX H ( 10 MILE EPZ POPULATION ESTIMATES SECTOR. O' - 2 2-5 5 - 10, . TOTAL .... _.....A 1. _, --.,. ___.-690 - -- ---5 2 0- -- - o. I210 A-2 o 100 390 490 A-3 0 415 3160 3575 A-4 0 0 660 66l) A-3 0 0 110 1100' A-6 0 0-1035 1035 B-1 190 660 0 350 B-2 o 499 - 110 600 B-3 0 70 773 343 B-4 0 0 410 410 f B-5 0-1030 145 1195 -6 0 0 160 160 0 0 250 250 0 0 645 6 ;.5 (; C-1 370 670 0 1040 C-2 o 1945 0 1945 -3 0 o 1810 1810 0 0 750 750 C-5 0 0 445 443 -6 o. 0 1670 1670 -7 0 o 1830 1830 -3 0 0 2440 2440 I - D-1 300 0 ~0 300 C-2 0 33g3 9 3535 r 0 420 3030 3450 D-4 o 0 1650 1650 D-3 0 0 10,340 10,340 -6 0 65 2315 2330 H-23 {, ' y 4-s il 9 ,. p., . s i,4 4 (* -4< + .a.=asuna
l' E4 V ENCLOSURE 1, TAB C, APPENDIX 1, ANNEX H Ip W '"%,,% 'v '.L F' /, 't s [ 3 l. "- "'1' f. s. ( c' %- '. ',p t '+'
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Revision 1 TAB D, APPENDIX 1, ANNEX H TRANSIENT POPULATION ESTIMATE ~ -..L.......'...... 0-2 2 5 - 10 10-MILE SECTOR MILES - MILES _ MILES TOTAL A-1 1000 0-500 ' *15.00 ~ A-2 0 600' O 600 A-6 0 0 1350 1350 B-1 1500 500 0 2000 B-2 0 900 150 1050 B-4 0 0 900 900 C-1 750 0 0 750 C-2 0 3700 0 3700 C-7 0 0 235 235 C-8 0 0 4000 4000 D-1 1250 O O 1250 0-2 0 1500 0 1500 D-6 0 3300 1900 3200 Sector C-2 includes Harrison Bay State Park Sector C-7 includes Volunteer Army Ammunition plant j Sector C-8 includes Booker T. Washington State Park Sector D-6 includes Chester Frost County Park k H-25 1 ,7/5. , pp l \\Eh:k 6%d%.edhiAlk%l$ i,w-
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0 1076 45 min Ih45m 2h30m 3 hrs 0 0 3h15m 3h45m 2 hrs 2h15m 2h45m 9 C-8 50% C-1, C-2 i 2465 936 3700 1231 1000 45 min 1h45m 3h15m 3h45m ?h15m 2h45m 4 hrs 4h30m 2 hrs 3h30a 4 hrs r l 0-10 50% 0-2, U-6 i1853 i743 4050 13F0 939 45 min Ih45m 2h50m 3h20m 2 hrs 2h30m 3h35m 4h5m 2 hrs 3h30m 4 hrs SECTOR A-2 ! 100 ' 40 600 200 (Latside 45 min Ih45m lh55m 2h25m I hr lh30m 2h40m 3h10m 2 hrs 2h15m 2h45m i 50% SECTOR A-3 ' 208 83 0 0 (; itside 45 min Ih45m lh55m 2h25m 0 0 2h40m 3h10m 2 hrs 2h15m 2h45m 25% SECTOR B-2 122 49 0 0 0 itside 45 min 1h45m lh55m 2h25m 0 0 2h40m 3h10m 2 hrs 2h15m 2h45m t 50% SECTOR B-3 35 14 0 0 0 itside 45 min 1h45m lh55m 2h25m 0 0 2h40m 3h10m 2 hrs 2h15m 2h45n 33% SECTOR U-5 ' 350 140 0 0 O stside 45 min Ih45m 2h5m 2h35m 0 0 2h50m 3h20m 2 hrs 2h15m Zh45a SECTOR D-3 i 420 163 0 0 O stside 45 min Ih45m 2h5m 2h35m 0 0 2h50m 3h20m 2 hrs 2h15m 2h45m i I e
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e s w ag s a we 3R hm {we sw. E me b8 ww 8 3 _yyed d9 e9 ch US "R w mm m -m m = a v u o e e m m m , d 8 SECTORS UITifft Trrt(ini tirtrs (enne i 50" SECTOR A-4 330 132 0 0 Catside 45 min 1h45m 2h15m 3 hrs 0 0 3 hrs 3h45m 3 hr: 2h20r 3h5m 33% SECTOR A-5 367 147 0 0 tutside 45 min 1h45m 2h15m 3 hrs 0 0 3 hrs 3h45m 3 hr 2h20m 3h5m 50% SECTOR A-6 543 217 0 0 [httside 45 min Ih45m 2h30m 3h15ta 0 0 3h15m 4 hrs 3 hr: 2h20m 3h5a SECTOR B-7 250 100 0 0 t stside 45 min 1h45m 2h15m 3 hrs 0 0 3 hrs 3h45m 3 hr: 2h20m 3h5m o '? SECTOR C-5 445 178 0 0 (latside 45 min Ih45m 2h30m lh15m 0 0 3h15m 4 hrs 3 hr: 2h20m 3h5m I 50". SECTOR C-6 835 334 0 0 0 itside 45 min th45m 2h45m th30m 0 0 3h30m 4h15m 3 hr: 2h20m 3h5m 33% SECTOR C-7 627 250 0 0 0 stside 45ain 1h45m 2h15m 6 3 brs 0 0 3 hrs 3h45m 3 hr< 2h20m 3h5n 2 5*, SECTOR D-4 413 165 0 0 0 stside 45 min ih45m 2h30m 3h15m 0 0 1h15m 4 hrs 3 hr: 2h20, 3h5m ~ O G 9 e
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16, %13.nz /. F n_ ; ^? 'a LJ t SCAlf. Of wtES ( 10 MILE EPZ 'N/ SECTORS TAB G. APPEf4 Dix 1. /diflEX H '.s j'__- D e g 4
ENCLOSURE 1, TAB G, APPENDIX 1, ANNEX H POPULATION FIGURES FOR SECTORS IN 10 MILE EPZ* HAMIL'[ON COUNTY SECTOR POPULATION SECTOR POPULATION A-1 1210 C-1 1040 A-2 -490 C-2 1945 A-3 3575 C-3 IS10 A-4 660 C-6 1670 'A-5 1100 C-7 1830 A-6 1085 C-3 2440 L B-1 350 D-1 300 B-2 600 D-2 3535 B-3 345 D-3 3450 B-4 410 D-4 1650 B-3 1195 D-5 10,340 D-6 2330 TOTAL 04,945 ~ BRADLEY COUNTY B-6 160 C-4 750 B-7 250 C-5 445 B-3 645 TOTAL 2,250
- Population based on TVA FSAR population data.
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. w N bw ENCLOSURE if(continued) HAGNETIC TAPE MCFEOROLOGlCAL DATA .x LCCATION: Sequoyah Nuclear Plant DATE OF DATA RECORD: January 1 - December 31, 1985 I6 Identifier (can be anything) i l 12 Year t i:g> I3 Julian Day ~ I4 Hour (on 24-hour clock) 1 ACCURACY F5.1 Upper Measurements: Level = 90.8 meters F5.1 Wind Direction (degrees) F5.1 Wind Speed (meter /sec) F5.1 Sigma Theta (degrees) FS.1 Ambient Temperature'T'C) F5.1 Moisture: F5.1 Other: F5.1 Inter =ediate Measurements: Level = 46.0 meters F5.1 Wind Direction (degrees) F5.1 Wind Speed (meters /sec) F 5.1 Sigma Theta (degrees) [_ 'F5.1 Amoient Temperature (*C) F5.1 Moisture: F5.1 Other: F5.1 Lcwer Measurements: Level = 9.3 meters F S.1 Wind Direction (degrees) F 5.1 Wind Speed (meters /sec) F5.1 Sigma Theta (degrees) F 5.1 Ameient Temperature ('C) i F 5.1 Moisture:
- h, F5.1 Otner:
Dewpoint Temperature (OC) 7 2.1.3-9 Rev. 2 - July 1981 q
y .s,..- .\\ li ' t. .t KAGNETIC TAPE HETEOR0 LOGICAL DATA (Continued)- FS.1 Temp. Diff. (Upper-Lewer) ('C/100 meters) F5.1 Temp. Diff. (Uphar-Intermediate) ('C/100 meters) FS.1' Temp. Diff. (Intermediate-L6wer) ('C/100 meters) F5.1 Precipitation ( m.) 1 2 F5. 2 Solar Radiation (cal /cm / min) i' ' f ~ l 34_ Visibility (km) !fq FS.1 Other: g F5.1 Other: f i i \\ 4 x /p r f' f t / .i { l 2.3.3-10 1. Rev. 3 - July 1981 ..}}