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Process Hazard Analyses (PHA)

Perform structured hazard analyses to identify, evaluate, and mitigate process safety risks.

Service Overview

At Engineering Design Services, our Process Hazard Analysis (PHA) services provide a structured, engineering-driven approach to identifying and evaluating hazards associated with process systems. We support clients through formal hazard studies that assess deviations, evaluate safeguards, and define practical risk reduction measures across the full lifecycle of a facility.


Our team works closely with operations, engineering, and safety personnel to ensure studies reflect real-world operating conditions and credible process scenarios. Whether supporting new designs, facility modifications, or required revalidations, we facilitate thorough and efficient PHAs that lead to clear, actionable outcomes.


By combining process engineering expertise with structured hazard evaluation methods, we ensure risks are properly understood, documented, and mitigated in alignment with industry expectations.


Whether supporting early design or ongoing operations, our team delivers PHA solutions built for clarity, compliance, and real-world safety improvement.

Engineering Challenge We Solve

Unidentified or poorly evaluated process hazards can result in safety incidents, operational disruptions, and regulatory non-compliance. Our PHA approach mitigates these challenges by:

  • Identifying Process Deviations: Systematically evaluating what can go wrong in a process system.

  • Evaluating Safeguards: Assessing existing protection layers and their effectiveness.

  • Reducing Operational Risk: Identifying practical mitigation measures to prevent incidents.

  • Ensuring Regulatory Compliance: Supporting OSHA PSM requirements and industry standards.

  • Improving System Understanding: Enhancing awareness of process behavior and failure modes.

Core Capabilities

Our team provides comprehensive PHA support across a wide range of methodologies and project phases:

  • HAZOP Studies: Structured, node-based evaluation of process deviations using guidewords.

  • What-If Analysis: Scenario-based identification of potential hazards and outcomes.

  • HAZID Studies: Early-stage hazard identification for conceptual and FEED projects.

  • LOPA Support: Layer of Protection Analysis to evaluate risk reduction adequacy.

  • PHA Revalidations: Updates to existing studies to maintain compliance and accuracy.

  • Safeguard Evaluation: Assessment of engineering and administrative protection layers.

Advanced Tools & Technical Expertise

We apply structured methodologies and engineering expertise to deliver effective and defensible studies:

Industry-Standard Methodologies: HAZOP, What-If, and HAZID frameworks.
Process Engineering Insight: Deep understanding of system behavior and operating conditions.
Facilitated Workshops: Structured sessions led by experienced engineering facilitators.
Regulatory Alignment: OSHA PSM, API, and other applicable safety standards.
Cross-Discipline Collaboration: Integration with operations, maintenance, and safety teams.

Industries We Support

Our PHA services support industries where process safety and risk management are critical:

Petrochemicals: Refining, chemical processing, and high-hazard systems.
Energy: Oil & gas production, midstream, and LNG facilities.
Sustainable Infrastructure: Hydrogen production, carbon capture, and renewable systems.
Industrial Manufacturing: Complex process systems with hazardous materials.
Themed Entertainment: Behind-the-scenes infrastructure requiring structured safety review.
Aerospace: Test systems, fueling operations, and specialized process environments.

Deliverables

We provide clear, structured outputs to support compliance, safety improvement, and operational reliability:

PHA Reports: Documented findings, scenarios, and conclusions from hazard studies.
Action Item Lists: Prioritized recommendations for risk reduction and mitigation.
Risk Registers: Structured tracking of hazards, safeguards, and residual risks.
Study Documentation: Complete records of workshop sessions and evaluations.
Revalidation Reports: Updated analyses supporting ongoing compliance requirements.

Tech Pattern

Partner With an Expert

From compliance requirements to proactive risk management, EDS conducts PHAs that strengthen safety and operational integrity.

Contact us today to identify hazards and implement effective safeguards.

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