Consequence Assessment

DOE-HDBK-5504-95

6. CONSEQUENCE ASSESSMENT

Planning Standard: The emergency plan should contain provisions to adequately assess the actual onsite

and offsite consequence of an emergency.

Evaluation Guidance:

Source

Applicability &

Reference

Plan Element

Plan Reference

6.1 Consequence Determination

40 CFR

The emergency plan should describe the procedures that

______________

264.56(b), (c)

will be used to determine the potential consequences of a

EMG-F/C 6.1

situation based on the results of hazards assessments and

input from all other pertinent areas such as intelligence

and meteorological information.

EMG-CA

(1) The emergency plan should provide for a timely

______________

C.2.a,b

initial consequence assessment (i.e., an assessment

EMG-PA

whose results should be available to decision makers

C.2.a,b

in a time that is short with respect to the decision and

response time needed for protective actions).

Procedures should describe the means for making an

initial assessment which may be achieved by one or

more of the following means:

EMG-CA

(a) Calculational models using information on

______________

C.2.c.(1)

release pathways (i.e., effluent monitoring),

with computer codes that produce a

quantitative estimate of consequences within a

few minutes of the onset of any release.

EMG-CA

(b) Simplified calculational models such as graphs,

______________

C.2.c.(2)

nomograms, or worksheets that provide

operating staff or initial emergency responders

with quantitative estimates of consequences in

a short time using real-time dispersion

conditions and release data.