Hazard assessment and accidental release modeling for the EPA risk management program
The focus of this paper is on the hazard assessment requirements of the risk management program (RMP). A hazard assessment identifies potential release scenarios for a system or process and evaluates the release scenarios to estimate potential release quantities and downwind adverse effects to human health and the environment. Under the proposed rule, for every process at a facility in which a regulated substance is present above its threshold quantity, the facility would need to evaluate a range of significant releases including a worst-case accidental release. The documented hazard assessment will be reviewed and updated at least once every five years and must be updated within 60 days of a change at the facility or its surroundings (e.g., process, quantity in process, population) that would alter significantly the results of the hazard assessment. The hazard assessment must include a five-year accident history for regulated substances held above a threshold quantity in a process. This paper also discusses specific RMP modeling issues (e.g., scenario development, model selection and limitations, meteorological conditions).
- OSTI ID:
- 287568
- Report Number(s):
- CONF-950927--; ISBN 0-8169-0660-2
- Country of Publication:
- United States
- Language:
- English
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