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  2. About EPA

Organization of EPA's Region 10 Office in Seattle

Serving Alaska, Idaho, Oregon, Washington, and 271 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 Justice, Community Health, and Environmental Review Division

About the Environmental Justice, Community Health, and Environmental 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

Contact: 206-553-1234

Regional Administrator: Emma Pokon
  • Biography

Deputy Regional Administrator: Dan Opalski

How we're organized:
  • Alaska Operations Office
  • Idaho Operations Office
  • Oregon Operations Office
  • Washington Operations Office
  • Public Affairs Office
  • Tribal Trust & Assistance Division
  • General Assistance Program Grants Branch
Programs we administer:
  • Public affairs
  • Tribal affairs
  • International affairs
  • Equal Employment Opportunity (EEO)
  • Special emphasis programs

Air and Radiation Division

Acting Director: Davis Zhen

How we're organized:
  • Air Planning and State/Tribal Coordination Branch
  • Air Permits, Toxics, Transportation and Communities Branch
Programs we administer:
  • State and Federal Implementation Plans (SIPs/FIPs)
  • National Ambient Air Quality Standards (NAAQS)
  • Air permits
  • Air toxics
  • New Source Performance Standards (NSPS)
  • National Emission Standards for Hazardous Air Pollutants (NESHAP)
  • Maximum Attainable Control Technology (MACT)
  • Diesel Emissions Reduction Act (DERA)
  • Air grants
  • Radon
  • Indoor air

Enforcement and Compliance Assurance Division

Director: Ed Kowalski

How we're organized:
  • Air and Land Enforcement Branch
  • Water Enforcement and Field Branch
Programs we administer:
  • Enforcement
  • Compliance assurance
  • Pesticides
  • Emergency Planning and Community Right-to-Know Act (EPCRA)
  • Lead-based paint programs
  • Asbestos demolition and renovation
  • Tips and complaints

Environmental Justice, Community Health, and Environmental Review Division

Director: Angeles Herrera

How we're organized:
  • Environmental Justice Branch
  • NEPA Branch
  • Environmental Justice Grants Section
Programs we administer:
  • Children's health
  • Environmental education
  • National Environmental Policy Act (NEPA)

Laboratory Services and Applied Science Division

Director: Michael Szerlog

How we're organized:
  • Environmental Assessment Branch
  • Laboratory Services Branch
  • Risk Assessment Branch
Programs we administer:
  • Quality management
  • Scientific integrity
  • Risk evaluation
  • Field sampling
  • Lab services
  • Regional dive team

Land, Chemicals, and Redevelopment Division

Director: Davis Zhen

How we're organized:
  • RCRA and Tanks Branch
  • Pollution Prevention and Communities Branch
Programs we administer:
  • Hazardous waste
  • Corrective action
  • Underground storage tanks
  • Brownfields
  • Toxic Substances Control Act (TSCA)
  • Pollution prevention

Mission Support Division

Director: Angela Chung

How we're organized:
  • Human Resources Branch
  • Facilities, Safety, and Security Branch
  • Financial Management and Planning Branch
  • Information Services Branch
  • Grants and Interagency Agreements Branch
Programs we administer:
  • Strategic planning and process improvement
  • Budget
  • Finance
  • Facilities and security
  • Human resources
  • Information technology and information management
  • Geographic Information Systems (GIS)
  • Management of grants and interagency agreements
  • Contracts and acquisition (with support from EPA Region 7 Contracting Office)
  • Health and safety programs

Office of Regional Counsel

Regional Counsel: Beverly Li

How we're organized:
  • General Law/FOIA Branch
  • Air, RCRA, Toxics, and Criminal Law Branch
  • Land Law Branch
  • Water Law Branch
Programs we administer:
  • Legal counsel
  • Litigation
  • Ethics
  • Regional Hearing Clerk
  • Freedom of Information Act (FOIA)

Superfund and Emergency Management Division

Director: Calvin Terada

How we're organized:
  • Emergency Management, Site Assessment and Removal Branch
  • Remedial Cleanup Branch
  • Operations and Enforcement Branch
Programs we administer:
  • Superfund cleanup
  • Emergency response
  • Oil spill prevention and planning

Water Division

Acting Director: Krishna Viswanathan

How we're organized:
  • Permitting, Drinking Water, and Infrastructure Branch
  • Puget Sound Recovery National Program Office Branch
  • Standards, Assessment, and Watershed Management Branch
Programs we administer:
  • Drinking water
  • Clean Water Act grants
  • Groundwater protection
  • National Estuary Programs (Columbia River, Puget Sound, Tillamook)
  • Non-point sources
  • Ocean dumping, dredging, and disposal
  • Total Maximum Daily Loads
  • Underground injection control
  • Wastewater and stormwater permitting
  • Water quality standards

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 May 5, 2025
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