ML112990596
| ML112990596 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/26/1980 |
| From: | Mayer L Northern States Power Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML112990597 | List: |
| References | |
| NUDOCS 8010060229 | |
| Download: ML112990596 (19) | |
Text
NORTHERN STATES POWER COMPANY MINNEAPOLIS. MINNESOTA 55401 September 26, 1980
~A/D 17-ji~0 Director of Nuclear Reactor Regulation RO NS FIL L
U S Nuclear Regulatory Commission Washington, DC 20555 MONTICELLO,,fUCL AR GENERATING PLANT Docket No. 5 -23)
License No. DPR-22 Emergency Preparedness Evacuation Time Estimates Revision No. 2 Attached you will find 40 copies of Revision Number 2 to our report entitled "Emergency Preparedness-Evacuation Time Estimates" dated April 10, 1980.
The purpose of the revision is to provide evacuation time estimates based on more refined methodology.
We have resubmitted the entire report with side-lining provided on the revised pages.
Very truly yours, L 0 Mayer, PE Manager of Nuclear Support Services LOM/BWC/jh cc
/G Keppler G Charnoff NRC Resident Inspector I0cT 6 SR
-g6/6oo o2-7
(
EVACUATEON TIME ESTIMATES
'FrOm Areas Near e
, Monticello Nuclear Generating Plant Prepared by Northern States Power Canpany 414 Nicollet Mall Minneapolis, MN 55401 April, 1980 Revision 1 Revision 2 August 1980 September 1980
EVACUATION TIME ESTIMATES Table of Centents 4
-*W~
age General.
1 Evacuation Preparation................
2 Confirmation of Evacuation...
2 Method Used for Determining Time Estimates....
3 Special Facility Evacuation..
3 Table Evacuation Time..
5 Map Sectors..................
6-15 Appendix..
.16 Exit Routes Vehicle Travel Rate
'V MONTICELLO NUCLEAR GENERATING PLANT Evacuation Time Estimates General The estimated time required for evacuation of people fromi-areas near nuclear power reactors is in response to a letter from the Nuclear Regulatory Comm sionfBGVn'td1 attached guidance titled, "Request for evacuation time estimates (after notification) for areas near nuclear power plants."
The estimated time provided herein for both the best.conditions and adverse conditions are times required to travel from a residence located within a specific sector, along a predetermined route, to a designated established location outside the sector being evacuated.
The states plan now calls for evacuation to a 10 mile distance.
In all cases, every evacuation sector defined in this study emanates from the reactor site outward to the prescribed radius.
These estimates were developed under the auspices of the Minnesota Department of Public Safety, Division of Emergency Services, with assistance from the Minnesota Department of Transportation, Emergency Operations Section, who furnished road traffic volume numbers and certain reasonable assumptions in developing the method used for determining the time estimates as outlined in the attachments. The Table identifies the 10 sectors at the generating plant, the estimated 1980 population involved, exit routes from each sector, and the evacuation time and confirmation time required in each sector.
The ten maps sh6w" d-g ta 1d:
i1 eea population, evacuation time, and confirmation time required.
Evacuation Preparation It is assumed a prior alert will provide time to prepare for the evacuation and therefore the estimates for the general evacuation do not include any time for preparation.
These times could vary from packing a hasty bag (20 minutes) to feeding livestock (several hours).
One special evacuation problem is the unwilling evacuee, who must be notified of alternate protective action, such as informing him by message to remain inside with windows and doors closed.
Confirmation of Evacuation Present plans (state and local) do not address this need specifically; however, during discussions regarding evacuations of residents, a door-to-door check was considered.
The time listed in the table for confirmation assumes a reasonable number of emergency vehicles available to perform this task.
METHOD USED FOR DETERMINING TIME ESTIMATES A process using population densities, local geography, and road capabilities has been used to determine the evacuation times.
- 1.
The Minnesota Department of Transportation MDOT) emergency operations, assumes that each vehicle carries two occupants average, so all seto:'
2in ltin'.
s the vehicles required to evacuate that sector.
- 2.
Exit routes are assigned traffic volume capacity amounts in "vehicles per hour capacity" (VPHC).
The lowest VPHC for any road in each exit route was used.
To provide conservatism to the time estimates, it was assumed that every vehicle in each segment (0-2) (2-5) (5-10) of every evacuation zone traveled the total distance through that segment.
- 3. Vehicle travel rate over exit roads are assigned a speed (MPH) according to the area; it.being "rural" or "urban."
- 4.
Adverse conditions; bad weather and seasonal road conditions according to MDOT should increase the evacuation time by 30 percent.
- 5.
If the number of vehicles (half the sector population) is less than the VPHC for the exit route, the time for evacuation depends on the vehicle travel rate.
Using the above concepts, the evacuation time estimates have been developed.
Special Facilities Evacuation The Emergency Medical Services Section of the Minnesota Department of Health provided the names of hospitals and nursing homes within the 10 mile radius of the nuclear plant and provided times required to load and transport patients.
REV 2 9/26/80 Page 3
Estimated Time Required (Minutes)
Sequence of Events 75 -
125 Patients Incident Notification of MDH, EMS Section Notification of Risk FacilitiesJ:
Request for Transportation 5
- Transport vehicles to. Risk:
Loading Time 90
- Transport to Host Area 40 200 minutes or 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> 20 minutes This estimate makes the assumption that weather conditions are good and the use of enough vehicles to transport everyone without return trips. For the adverse time required to evacuate the above facilities, the 30 percent increase in time used for general evacuation is reasonable.
It is assumed that confirmation of removal would be an integral part of the evacuation process carried out at each of the Special Facilities.
- These notification times were included in this Special Facility Evacuation estimate developed by the Minnesota Department of Health.
REV' 2 9/26/80 Page 5 EVACUATION TIME MONTICELO Table ESTIMATES IN THE AREA NEAR THE NUCLEAR GENERATING PLANT Evac Zone Map M
M-2 M-3 M-4 M -5 M-6 M-7 M
M 8
9 Sectors Distance 0 -
2 miles 0 -
2 miles 0 -
5 miles 0 -
5 miles 0 -
5 miles 0 -
5 miles 0
10 miles 0
0 M -
10 10 miles 10 miles 0 -
10 miles Degree 180 180 90 90 90 90 90 90 90 90 Sectors NW-ESE SE-WNW NW-NNE NE-ESE SE-SSW SW-WNW NW-NNE NE-ESE SE-SSW SW-WNW Population 266 509 1099 1766 4573 1133 2855 6609 8890 3620 Exist Routes Co Rd 11 T.H.-25 Co Rd 75 T.H.-94 Co Rd 11, Co Rd 23 T.H.-10 Co Rd 11, 14, T.H.-10 T.H.-25 Co Rd 75, Co Rd 106 T.H.-94 T.H.-25 Co Rd 75, 39, 111 T.H.-94 Co Rd 8, 53, 23, 11, 4
T.H.-10 Co Rd 5, 43, 14, {39 T.H.-10 Co Rd 12, 15,. 37 119 T.H.-94, T.H.-25 Co Rd 11, 37, 106 8, 39 T.H.-94 Evacuation Time (minutes)
Best/Adverse/Confirm 10/13/26 10/13/26 22/29/58 22/29/58 22/29/58 22/29/58 j2/55/110 42/55/110 56/73/146 42/55/110 PA4NT RE 9-2 0
o,
SAIZ Of A'I 1979 IAASCDATA MINUTES BEST/ADVERSE/CONFIRM POPULATION EVAC AREA (See Table )
PLAN.
2E-REV. 2 9-24-80 S I~'SAND. ~
UNES MINUTES BEST/ADVERSE/CONFIRM POPULATION EVAC AREA M - 2.
(See Table ) SCALI r so BAMC :-
PLANT -
+ REV 2-eo
- -O RR RE7 B~
SCALI OF S'.
197
&ASC:A.
MINUTES C /2?
/58 BEST/ADVERSE/CONFIRM POPULATION EVAC AREA m -3 (See Table )
<REV 2
9-E-sc fIdL J
o MINUTES BEST/ADVERSE/CONFIRM POPULATION EVAC AREA (See Table ) 197 ASIC DA.TA.
JPLANT A-.*1 REV. 2 9--80 o
.1
.a.*a o
,c(
- 1 SCALI OF STATl.
1979 ASIC DATA MINUTES BEST/ADVERSE/CONFIRM 457-3 POPULATION EVAC AREA M-5 (See Table) 10 -
- PLANT, 79I 0 R Rjo o
alu'r.
SCALZ. 0?
1979 BASICDA MINUTES BESTIADVERSE/CONFIRM EVAC AREA 113 POPULATION (See Table 11 -
)
we
PLANT.
REVE2 3-26-O all:-rrr-w
.1*
y i
L SCALE OF S7A BAMSIC DATI
- 1 -
MINUTES BEST/ADVERSE/CONFIRM POPULATION EVAC AREA M-7 (See Table) 12 -
~PLANT 0
REV. 2 9-Z2-8(
- 7.
SCALE Or STA7 197c BASC DATA.
MINUTES BEST/ADVERSE/CONFIRM EVAC AREA POPULATION 13 -
(See Table )
-PL4NT RE V. 2 9-2 60 o
n*-,
o c
MINUTES 34
/ 73 _ / /
BEST/ADVERSE/CONFIRM 889O POPULATION EVAC AREA M -9 (See Table )
14 -
1979 ASIC DA:A
. PLANT.
REV 2 g
o oC J6/
- ,~ 17.2
!SLDZUE F
R T.
SCALu OF S TA :
1979 AS2C DATA MINUTES
+ /
s /1/F0 BEST/ADVERSE/CONFIRM 3CZo POPULATION 15 EVAC AREA A - Io (See Table )
REV 1 8/25/80 Appendix i.EVACUATICN
'IET ST Monticello Nuclear Generating Plant Exit Routes Vehicles/hour Capacity (VPHC)
Trunk Highway 94 1450 Trunk Highway 10 1400 Trunk Highway 25 1150 County Roads 8, 11, 37, 75 1150 County Roads 12, 15, 111 1050 County Roads 106, 117 1000 County Roads 39, 119 900 County Roads 5, 14, 23 800 County Roads 4, 43, 53, 73 600 Vehicle Travel Rate:
10-15 mph