Washington State operations
Environmental consulting inWashington
Environmental, health, and safety consulting for employers across Washington, including aerospace, technology, maritime, and life-sciences employers under one of the country's most stringent state EHS&S frameworks.
Why Washington EHS&S consulting is distinctive
Washington is a state-plan OSHA state with its own occupational safety program (WA DOSH) that runs stricter than federal OSHA in several areas — outdoor heat, wildfire smoke, dangerous waste, and asbestos among them. The Department of Ecology enforces Dangerous Waste rules that capture more waste streams than RCRA, and the Climate Commitment Act layers cap-and-invest obligations on large emitters and fuel suppliers.
From our Seattle office in Ballard, Citadel EHS supports aerospace and aerospace suppliers, cloud-computing data centers, maritime operators across the Puget Sound, biotech and research institutions, and large healthcare systems across Western Washington and into Eastern Washington.
On the ground
Offices in Washington
Featured
Projects in Washington
Healthcare Realty Regulated Materials & Building Sciences Consulting
Citadel EHS has provided building sciences, industrial hygiene, environmental health, and regulated materials consulting services for Healthcare Realty properties and project sites since 2021, including a Limited Regulated Materials Survey in support of a tenant improvement remodel at a MultiCare Health System facility in Tacoma, Washington.
Aerospace Manufacturing Facility Support
Citadel EHS provides ongoing environmental, industrial hygiene, and building sciences consulting for a major aerospace and defense manufacturer, supporting facility maintenance, infrastructure improvements, renovation, construction, and ongoing operations within active, highly controlled manufacturing environments.
Hyperscale Data Center Noise Assessment
Citadel EHS provides industrial hygiene and occupational noise consulting for hyperscale data center facilities operated by a global technology company. Citadel’s work includes assessments at data center facilities in Red Oak, Texas, and Bristow, Virginia, supporting the client’s efforts to understand and manage employee noise exposures within complex, continuously operating technology environments.
Multi-State Asbestos & Due Diligence Program
Citadel EHS supported a confidential national big-box retailer with a multi-state asbestos consulting and environmental due diligence program spanning 38 retail locations in California, Washington, and Hawaii. Services included field investigations, testing coordination, laboratory management, technical reporting, and centralized project tracking to support commercial activation and facility-improvement initiatives.
Healthcare Clinic Industrial Hygiene & Indoor Environmental Quality Consulting
Citadel EHS has provided industrial hygiene, indoor environmental quality, and facility-related environmental health consulting services for a healthcare sector client in Washington, including an indoor air quality assessment at an occupied healthcare clinic near Tacoma.
Who we serve