Every day, our employees strive to responsibly manage the environmental aspects of our operations. We make continual improvement in our environmental performance by following our Operational Excellence Management System (OEMS), and our Environmental Stewardship (ES) Corporate Standard Process, which require our businesses to systematically identify, assess and prioritize environmental risk and improvement opportunities. We also measure our environmental performance, which enables us to make informed business decisions around protection of the environment.
seven environmental aspects
Consistent with ISO 14001, we defined seven types of environmental activities, or "aspects," that we address:
Accidental releases prevention and response – Unplanned releases including petroleum and chemical spills and releases of hazardous vapors.
Air emissions – Emissions of air pollutants, including criteria pollutants (NOX, SOX and particulate matter), volatile organic compounds and hazardous air pollutants.
Energy efficiency and greenhouse gas – Energy use throughout Chevron’s operations and facilities and emissions of greenhouse gases (GHGs) including carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride.
Natural resources – Use of natural resources, including land and water, as well as biodiversity and potential impacts resulting from noise, vibrations and light.
Site residual impacts – Decommissioning, remediation, reclamation and/or abandonment of sites and facilities.
Waste – Management of all types of solid waste regardless of hazardous classification.
Wastewater – Management of all types of domestic and process wastewater, including produced water.
four environmental principles
We have four environmental principles that define our commitment to doing business in an environmentally responsible manner, as we believe that protecting the environment is compatible with providing energy. These principles are implemented across the life of our assets.
include the environment
in decision making
We all make decisions that may affect the environment. From our everyday actions to our major capital investments, we make better decisions when we consider the environment.
We use our business processes to identify and manage risks to the environment and reduce potential environmental impacts throughout the life of our assets.
We apply our Tenets of Operation and improve reliability and process safety to prevent accidental releases.
We work to decommission, remediate and reclaim operating and legacy sites with the aim of beneficial reuse.
Our Operational Excellence Management System (OEMS) provides the foundation for our systematic approach to environmental stewardship, and includes three parts: leadership accountability, management system process and environmental stewardship (ES) expectations.
ES corporate process
To drive consistency in meeting our Environmental Stewardship (ES) Expectations, we have an ES Corporate Standard Process. The ES Process requires our businesses to create an inventory of how their activities interact with the environment. These "environmental aspects" and their related impacts are then used to identify, assess and prioritize environmental risk and improvement opportunities.
ESHIA corporate process
In addition to our Environmental Stewardship Corporate Standard Process, we have an Environmental, Social and Health Impact Assessment (ESHIA) Corporate Standard Process. Our ESHIA Process is designed to consistently identify and address potentially significant project-related environmental, social and health impacts. Since its inception in 2007, we have used our ESHIA Process in the planning and implementation of more than 900 capital projects worldwide.
Chevron has eight environmental standards that apply a consistent level of rigor in managing the environmental aspects of our business. The corporate standards include Third-Party Waste Stewardship and Health, Environment and Safety (HES) Property Transfer.
In addition, we have six upstream-specific environmental performance standards (EPSs) for managing Air Emissions, Flaring and Venting, Natural Resources (including water and land use), Offshore Drilling Fluid and Cuttings, Produced Water and Waste. These EPSs are applied across all of our upstream businesses and capital projects and provide a benchmark, or minimum standard, for performance.
natural resources biodiversity
We recognize the importance of conserving biodiversity. We strive to avoid or reduce the potential for significant impacts on sensitive species, habitats and ecosystems.
energy efficiency & GHG
We are committed to managing our GHG emissions by reducing flaring and venting and improving energy efficiency in our day-to-day operations. Using energy more efficiently helps preserve our finite natural resources, lower energy costs and reduce carbon emissions.
natural resources water
Chevron recognizes the value of water as a fundamental social, environmental and economic resource. As a global company, we know that access to adequate supplies of water, both fresh water and water of lower quality, is essential for the communities where we operate as well as for our ability to produce energy around the world. As users of this critical natural resource, we must manage it responsibly.
site residual impacts
Established in 1998, Chevron Environmental Management Company (EMC) leads our global remediation, reclamation and asset retirement work. EMC puts Chevron’s environmental principles into practice across the enterprise, working in more than 35 countries around the world.
We work every day to review and improve our internal safeguards, to prevent accidental releases. These safeguards include: assurance of the integrity of our equipment design, execution of maintenance programs, and personnel training. Because of these efforts, Chevron achieved a record low petroleum spill volume* of 778 barrels in 2015.
*Volume in barrels; spills to land and water greater than or equal to one barrel are included.
In 2014, Chevron became the first energy company to meet the Center for Sustainable Shale Development’s voluntary shale gas drilling standards. The 15 performance standards include surface water and groundwater standards that require maximizing water recycling and developing groundwater protection plans.learn more
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