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  2. About EPA

Organization of EPA's Region 6 Office in Dallas

Serving Arkansas, Louisiana, New Mexico, Oklahoma, Texas and 66 Tribal Nations

On this page:

  • Organization chart
  • Leadership and organizational responsibilities

Organization Chart

 
Office of the Regional Administrator

About the Office of the Regional Administrator

 
Air and Radiation Division

About the Air and Radiation Division

Enforcement and Compliance Assurance Division

About the Enforcement and Compliance Assurance Division

Environmental Communities Engagement and Review Division

About the Environmental Communities Engagement and Review Division

Laboratory Services and Applied Science Division

About the Laboratory Services and Applied Science Division

Land, Chemicals, and Redevelopment Division

About the Land, Chemicals, and Redevelopment Division

Mission Support Division

About the Mission Support Division

Office of Regional Counsel

About the Office of Regional Counsel

Superfund and Emergency Management Division

About the Superfund and Emergency Management Division

Water Division

About the Water Division


Leadership and Organizational Responsibilities

Office of the Regional Administrator

Scott Mason, Regional Administrator

Biography

Stacey B. Dwyer, Deputy Regional Administrator

The Regional Administrator's Office includes:

  • Office of Civil Rights & Equal Employment Opportunity
  • Office of External Affairs
  • Tribal and Border Affairs Division

Office of Civil Rights & Equal Employment Opportunity

EEO Officer and Area Director: Sheila Veasley
Phone: (214) 665-7532

The Civil Rights and Equal Opportunity Office serves as the principal advisor to the Regional Administrator, Deputy Regional Administrator, and the operating divisions for all federal civil rights programs.

Office of External Affairs

Director: Darrin Larson
Phone: (214) 665-7479

The Office of External Affairs maintains effective relationships with federal, state, and local elected and appointed officials, community groups, and media. The office also serves as the coordinator for the Regional Administrator's speaking events and directs the public to appropriate sources of information through the Public Information Center.

Tribal and Border Affairs Division

Director: Randy Gee
Phone: (214) 665-8355

The office works closely with Tribal communities and communities along the U.S.-Mexico border to facilitate equal environmental protection. It houses the Region 6 U.S.-Mexico Border Program and the Region 6 Tribal Program.


Air and Radiation Division

Director: James McDonald
Phone: 214-665-3150

What We Do: The Air and Radiation Division implements the parts of Clean Air Act within the five states in Region 6 that are not part of the responsibilities of the Enforcement and Compliance Assurance Division. The Division conducts activities to reduce emissions so that air pollution does not constitute a threat to public health, safety, well-being and the environment. To carry out its mission, the Division works with other federal agencies, state and local agencies, Tribal governments, the public, and the private sector. The Division coordinates with the EPA Office of Air and Radiation to ensure consistency with the national environmental policy.


Enforcement and Compliance Assurance Division

Director: Cheryl Seager
Phone: 214-665-2210

What We Do: The Enforcement and Compliance Assurance Division promotes environmental compliance with federal environmental regulations in partnership with our states and Tribes. The Division inspects, investigates, and, where appropriate, implements enforcement actions for violations of the Clean Air Act, Clean Water Act, Safe Drinking Water Act, Resource Conservation and Recovery Act (Hazardous Waste), and Emergency Planning and Community Right-to-Know Act and Toxic Substances Control Act.


Environmental Communities Engagement and Review Division

Robert Houston, Deputy Director
Phone: 214-665-8565
Branch Manager: Keith Hayden
Phone: 214-665-2133

What We Do: The Environmental Communities Engagement and Review Division is responsible for environmental reviews and engaging with communities on EPA’s activities in Region 6.


Laboratory Services and Applied Science Division

Director: David "Wes" McQuiddy
Phone: 214-665-6722

What We Do: The Laboratory Services and Applied Science Division provides laboratory support for the Region’s varied programs. It ensures that collection and analysis of environmental data in the Region meet the data quality objectives of regional programs. It also ensures that the quality assurance programs of the environmental programs in the Region’s states, Tribes and local governments conform with EPA quality assurance guidance.


Land, Chemicals and Redevelopment Division

Director: Helena Healy
Phone: 214-665-2124

What We Do: The Land, Chemicals and Redevelopment Division implements portions of the Resource Conservation and Recovery Act, including management of hazardous waste, solid waste, underground storage tanks, and leaking underground storage tanks. It also implements the regional Brownfields program, as well as programs associated with the:

  • Federal Insecticide, Fungicide, and Rodenticide Act.
  • Residential Lead Based Paint Hazard Reduction Act.
  • Toxic Substances Control Act.
  • Asbestos School Hazard Abatement Act of 1984.
  • Asbestos Hazard Emergency Response Act of 1986.
  • Pollution Prevention Act of 1990.

Mission Support Division

Director: Mary Stanton
Phone: 214-665-6500

What We Do: The Mission Support Division provides leadership, support, communications, and direction to ensure efficient operations vital to EPA and regional goals. The Director also holds the role of Senior Resource Official and Senior Information Official. The Division advises the Regional Administrator and Deputy Regional Administrator, senior leadership, and management on regional and national policies involving strategic planning, technical, and resource management issues. The Division includes the Comptroller Branch, Information Technology and Operations Management Branch, and the Human Resources Branch.


Office of Regional Counsel

Regional Counsel: James McGuire
Phone: 214-665-6560

What We Do: The Office of Regional Counsel advises on the legal sufficiency of permits, program delegations to the states, grants, Freedom of Information Act, general law, personnel matters, and ethics issues, as well as providing legal interpretations and support the implementation of statutes under EPA’s jurisdiction and the agency’s regulations.


Superfund and Emergency Management Division

Director: Ronnie Crossland
Phone: 214-665-7200

What We Do: The Superfund and Emergency Management Division implements and enforces the:

  • Comprehensive Environmental Response, Compensation and Liability Act.
  • Superfund Amendments and Reauthorization Act.
  • Oil Pollution Act.

It also provides emergency response capability, and implements emergency planning, preparedness and prevention activities in preparation for hazardous materials responses during environmental incidents such as hurricanes.


Water Division

Director: Troy Hill
Phone: 214-665-6647

What We Do: The Water Division ensures drinking water is safe and restores and maintains watersheds and their aquatic ecosystems to protect human health, support economic and recreational activities, and provide healthy habitat for fish, plants, and wildlife. The Division implements the Clean Water Act, Safe Drinking Water Act, and Marine Protection, Research and Sanctuaries Act, except for inspections and enforcement, which are principally managed by the Enforcement and Compliance Assurance Division. In addition, the Water Division supports cross-cutting EPA programs such as the Urban Waters Federal Partnership, Healthy Watersheds Protection, and other geographic initiatives.

About EPA

  • Our Mission and What We Do
  • Headquarters Offices
  • Regional Offices
  • Labs and Research Centers
  • EPA Organization Chart
  • EPA History
Contact EPA
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 9, 2025
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