Worst-Case Scenario Analysis

Why Is a Hazard Assessment Needed?

The Clean Air Act Amendment of 1990, Section 112(r), required the EPA to issue regulations and guidance to prevent accidents and releases at facilities producing, handling, processing, distributing, or storing certain chemicals. The Chemical Accident Prevention Provisions of Section 112(r) require these facilities to develop, implement and sustain a risk management plan (RMP).

Each facility’s program should address hazard assessments that detail the potential effects of an accidental release, an accident history of the last five years, and an evaluation of the worst-case and alternative accidental releases.

Cognascents engineers are available to help companies comply with the hazard assessment requirements of the RMP rule. Cognascents provides the following services:

  • Definition of offsite consequence analysis parameters
  1. Toxic materials endpoints
  2. Flammables endpoints
  3. Explosion
  4. Radiant heat/exposure time
  5. Lower flammability limit
  6. Wind speed/atmospheric stability class
  7. Ambient temperature/humidity
  8. Height of release
  9. Surface roughness
  10. Density and buoyancy of gases
  11. Temperature of released substances
  • Analysis, calculation and documentation of worst-case scenario
  • Determination of worst-case release quantity
  • Documentation of passive mitigation considerations
  • Documentation of factors in selecting a worst-case scenario
  • Analysis, calculation and documentation of alternative release scenario
  • Estimation of offsite impacts with respect to population and the environment
  • Compilation of five-year accident history
  • Preparation of hazard assessment report

 Contact Cognascents to help you plan and price your next hazard assessment and worst-case scenario project.