Stichting Laka

Publicatie Laka-bibliotheek:
Review of the Reactor Safety Study (WASH-1400) draft of August 1974 (1974)

AuteurUSAEC
Datumnovember 1974
Classificatie 6.01.3.70/65 (VEILIGHEID - RISICO-ANALYSES & -BELEVING)
Voorkant

Uit de publicatie:

Dr. Norman C. Rasmussen, Director, Reactor Safety Study

REACTOR SAFETY STUDY

The enclosed report constitutes the comments of the AEC Regulatory staff on the 
AEC Reactor Safety Study as presented in the WASH-1400 draft dated August 1974, 
distributed for comments on August 20, 1974. The report was developed by a Task 
Force appointed to conduct a technical review of the Reactor Safety Study. To 
augment the Task Force in certain areas, consultation with experts not on the 
Task Force and some not on the Regulatory staff was employed by some Task Force 
members and groups. The Task Force has also held discussions with the Reactor 
Safety Study staff and with Study contractors and consultants under the aegis of 
the Study staff in order to enhance our understanding of the work performed in 
the Study.

The present report is intended to be only a beginning. The Regulatory staff is 
here attempting only a technical evaluation of the Study Report dated August 
1974. In accordance with the Commission policy (39 FR 30964), the staff will 
take further steps in evaluating and applying the Study methods and results after 
interested parties have commented on the draft Study Report and a final report 
has been issued and evaluated.

Our conclusions are summarized in the first section of the review. We believe that 
the Study represents a significant breakthrough in the quantitative evaluation of the 
risk to the public from nuclear power plants. We believe the Study was generally 
too conservative in the assessment of accident probabilities. However, the Study 
did not address all accident probabilities as we think they should have and we 
have identified some that might contribute significantly. We believe the Study 
was optimistic in some aspects of consequence calculation. Considering all of 
these together, we find ourselves in substantial agreement with the risk conclusions 
of the Study; that this risk is very low and on a comparative basis is smaller than 
most other risks to which we are exposed.

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