Screening and Evaluation Guidelines

DOE-STD-3014-96

SCREENING AND EVALUATION GUIDELINES.

This chapter provides the numerical screening and evaluation guidelines referred to in

Chapter 3. These guidelines are used to determine at what stage in the approach the analysis

is sufficient. It is extremely important to note that these guidelines were developed in full

consideration of and integration with the analytical requirements and methodologies presented

in this standard. Thus, they are only valid when used in conjunction with those requirements

and methodologies (e.g., the atmospheric conditions specified in this standard should be

used). In order to utilize the guidelines in this standard to apply a graded approach to accident

analysis, the conservatisms embedded in alternative approaches should be equivalent to those

in the standard; otherwise, the guidelines do not provide a valid comparison with the results of

the alternative approach.

Exposure Screening Guidelines. The results of the exposure screening step will be

4.1

compared to the following guidelines for exposure to the maximally exposed offsite

individual:

Radiological exposure - 25 rem (0.25 Sv) committed effective dose equivalent

(CEDE);

Hazardous material exposure - Emergency Response Planning Guidelines -

Level 2 (ERPG-2), as established by the American Industrial Hygiene Association

(AIHA); or

Hazardous material exposure where ERPG-2 has not been established - the Level

of Concern established by the U.S. Environmental Protection Agency (EPA)

specified in the 1987 EPA Technical Guidance on Hazards Analysis (or a

successor document).

Generally, dose to the maximally exposed offsite individual is deemed to be a

sufficient measure of potential hazard from aircraft crash. However, there may be

special circumstances in which exposure to onsite workers located outside the

facility needs to be considered (see discussion in Appendix A,