ML20154D455
| ML20154D455 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 02/25/1986 |
| From: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Moore B AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML20154D460 | List: |
| References | |
| NUDOCS 8603060090 | |
| Download: ML20154D455 (3) | |
Text
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.. FEB 2 51996 4
fir. Bob Moore lot 2 Lindenshire Exeter, flew Hampshire 03833
Dear Mr. Moore:
This letter is in response to your letter dated February 1, 1986 concerning radiation protection in the vicinity of a nuclear power plant during an unplanned release. As a resident living within 10 miles of the Seabrook Station, you will receive basic emergency planning information on a yearly basis. This information should include general infonnation as to the nature and effects of radiation, and a listing of local broadcast stations that will be used for dissemination of inforration during an emergency.
Specific technical information you requestod about protection factors is enclosed in Table 1. Table 2 lists radionuclides associated with nuclear power plant accidents which are thought to have a significant centribution to exposure. Further information in this regard is contained in flVREG-0654/ FEMA-REP 1 " Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of fluclear Power Plants." Additional inforna tion can be found in your local Public Docurent Roon or Federal Docurrent Repository.
If you have any additional questions or specific 'i.%ncerns relative to the Seabrook Station, your local emergency planners can work through the Federal Emergency Management Agency and the utility to provide you with inf ormat w and answers relative to establishing a safe evacuation plan.
Sincerely, Ortutnd SIRned D/f
%.T.ma6 Thomas T. fiartin, Director Division of Radiation Safety and Safeguards Attachments: As Stated 0603060090 060225 POR H ADOCK 03000443 PDR . _ _
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OfflCIAL PLCORD COPY f>A
l-t TABLE I Id) l l
l Typical Dose Reduction Factors (Cloud and Ground) l Cloud Ground Brick building (no basement) 0.6 0.2 1
Window panes 1.0 ---
Woodframe home (no basement) 0.9 0.4 l Large office or industrial-type building 0.2 0.01(1) or less 0.005 (2)
(1) Upper floors of multi-story structure (2) Basement of multi-story structure (a) Lindell, Mike, " Planning Concepts and Design Criteria for Sheltering and Evacuation in a Nuclear Power Plant Emergency". Atomic indus-trial Forum, Inc., National Environmental Studies Project AIF/NESP-031, June 1985.
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1 OFFICIAL RECORD COPY
Tablo 2 (b) d RADIONUCLIDES WITH SIGNIf! CANT CONTRIBUTION TO DOMINANT EXPOSURE MODES
.t Radionuclides with Significant Contribution to Long Exposure *
(Lung only contro111ag when thyroid dose is reduced by todine Andianec11 des with Significant Radionuclides with Significant blocking or there is a leng delay Contrihetten to Thyroid Exposure Contribution to *Aole Body Emposure prior to releases).
Half Life Half Life Half Life Radieneclide (days) Radionuclide (days) Radionuclide (days)
I-131 8.05 I-131 8.05 I-131 8.05 I-132 0.0958 Te-132 3.25 I-132 0.0958 I-133 0.875 ,
Xe-133 5.28 I-133 0.875 I-134 0.0366 I-133 0.875 I-134 0.0366 l I-135 0.280 Xe-135 0.384 I-135 0.280 Te-132 3.25 I-135 0.283 Cs-134 750 Cs-134 750 Kr-88 0.117 Kr-88 0.117 Cs-137 11.000 Cs-137 11.000 Ru-106 365 Te-132 3.25 l Ce-144 284 l
l (b) " Criteria for Preparation and n"aluation of Radiological Erergency Response Plans and Preparedness in Support of Nuclear Power Plants". USMRC, NUREG-0654/ FEMA-REP-1, November 1980.
(c) " Calculation of Reactor Accident Consequences", Accendix VI to Reactor Safety Study, WASH-1400, USMRC, October 1975.
- ~a rived from the more prc'.able Reactor Safety Study core melt categories and from postulated design basis l eccident releases.
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