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Health Environment, Safety and Security

Commitment to HES&S

As described in our corporate values, we have the highest regard for the health, safety and security of our employees, contractors and neighboring communities. We are committed to minimizing our environmental impact and continually look for ways to reduce our footprint. Health, Environment, Safety and Security (HES&S) at Marathon Petroleum Corporation (MPC) is built around the vision of no accidents, no injuries, and no harm to the environment. We are committed to excellence and continual improvement in the areas of HES&S. Put simply, we believe our employees, contractors and others involved with our operations should work in a safe and healthy setting, free of injury. We conduct our operations responsibly and we strive to be a good neighbor wherever we operate. This vision is further embodied by our HES&S Policy.

To help realize this vision, MPC has adopted the RC14001® management system that adheres to a "plan-do-check-adjust" framework to assess risks, set targets and measure progress. Business decisions affected by HES&S are also guided by the Code of Business Conduct. Meeting these commitments is a responsibility shared by everyone, including all of our employees, contractors and third parties. 

HES&S Governance and Oversight

The MPC Board of Directors oversees MPC’s safety and environmental performance in multiple ways. Responsibility for enterprise risk oversight, including health, environmental, safety and security risk oversight, rests with our Board and its committees. The Audit Committee of the Board reviews the process by which enterprise risk management is undertaken by MPC and key risks are reviewed on an ongoing basis periodically throughout the year.

The MPC Board of Directors provides further oversight through its annual setting of safety and environmental performance metrics. As described in our Citizenship Reports, MPC measures and reports its safety and environmental performance primarily through three key metrics – the Marathon Safety Performance Index (MSPI), the Process Safety Event (PSE) Rate  and the Designated Environmental Incident (DEI) Score. The board establishes environmental and safety performance metrics and annual goals for MPC. The MPC executive leadership team reports on our environmental and safety performance at each regularly-scheduled board meeting. Significant incidents, including releases and enforcement matters, are also reviewed with the board. The board continually reviews MPC’s strategy, including strategy related to environmental issues and safety. 

Key HES&S  Performance Metrics

Marathon Safety Performance Index (MSPI): a metric designed to measure safety performance against annual goals set at best-in-class industry performance levels, including common industry metrics such as OSHA recordable incident and days away rates.

Process Safety Event (PSE) Rate: measures the company’s success in identifying, understanding and controlling process hazards, which can be defined as unplanned or uncontrolled releases of highly hazardous chemicals or materials that have the potential to cause catastrophic fires, explosions, injury, plant damage, high-potential near misses or toxic exposures.

Designated Environmental Incident (DEI): a metric that include three categories of environmental incidents: releases to the environment (air, land or water), environmental permit exceedances and agency enforcement actions. We track four tiers of DEIs with Tier 3 and 4 DEIs being the most severe types.  Tier 1 and 2 DEIs are less severe than Tier 3 and 4 DEIs. We report and track these because we consider them a leading indicator that helps us to identify potential problems before they occur.


Executive Involvement

Our executive leadership team meets at least quarterly with key HES&S leaders throughout our company to evaluate performance and to discuss key strategic issues. This forum, called the HES&S Management Committee, enables executive leadership to stay fully aware of pressing HES&S matters affecting the company and to ensure governance of our RC14001® management system.

Compliance & Accountability

Responsibility for HES&S performance lies with the manager of each MPC facility and ultimately with the head of each MPC business unit. To ensure compliance with laws and regulations as well as company policies and standards, we employ approximately 500 HES&S professionals throughout our operating components directly responsible for HES&S matters. In addition, we maintain a corporate department that is responsible for establishing corporate-level standards, evaluating and determining how best to comply with new and emerging legislative and regulatory requirements, and assisting the HES&S Management Committee in formulating policy for the company. The corporate department also includes an HES&S Audit group, which is an essential component of our RC14001® Management System.

RC14001Ⓡ Management System

Since 2001, MPC’s health, environment, safety and security (HES&S) performance has been continually improving under the Responsible Care® Management System, and we are now moving into a more rigorous phase of HES&S management that represents a new level of commitment: RC14001® certification.

RC14001 is a management system that combines Responsible Care with the globally recognized ISO14001 environmental management system, established by the International Organization for Standardization. ISO, as the organization is called, is an independent, nongovernmental international body that provides world-class specifications for products, services and systems that ensure quality, safety and efficiency. Four MPC organizations already certify to the RC14001 standard: the Detroit refinery; Terminal, Transport & Rail; the Galveston Bay refinery in Texas City, Texas; and Marathon Pipe Line LLC. The rest of the company will begin certification to the new standard in 2018. Similar to Responsible Care, RC14001 provides the company a management system that integrates health, environmental stewardship, safety and security, and is third-party auditable to ensure compliance and continual improvement.

Performance-based standards

To drive further consistency, we complement our HES&S management system with performance-based standards that set expectations for organizational performance. Standards are periodically reviewed and updated to reflect changes in laws or regulations, incorporate recommendations arising from audits and incident investigations, and to continually improve performance.

HES&S Beliefs

MPC has also developed a set of HES&S Beliefs that further describe our HES&S values and culture. Each organization in MPC is required to recognize these beliefs as appropriate and commensurate with their individual risks. 

HES&S Statement of Beliefs

HES&S Audit Program

Periodic audits are a critical aspect of our HES&S management strategy. MPC relies on a three-tiered audit program to maintain regulatory compliance, ensure adherence to company standards and achieve continual improvement.

  • Tier I audits are frequent, targeted audits conducted by facility personnel.
  • Tier II audits are periodic in-depth audits that focus on regulatory compliance. Tier II audits rely on subject matter experts within the company and from outside the company.
  • Tier III audits are in-depth audits conducted by MPC's HES&S Audit group that determine compliance with, and test the implementation and effectiveness of, MPC’s HES&S Management System. Tier III audits also review the effectiveness of the Tier I and Tier II audit programs.

In each tier of the audit program, corrective action plans are developed to address findings, which are tracked to completion. Lessons learned from audits are shared across organizations. Key findings and trends from audits are communicated to MPC's HES&S leadership and senior management. Each operating component is also audited by an independent, accredited auditor for adherence the RC14001® requirements.