Services
Full-spectrum environmental, health, safety, and sustainability consulting
Citadel EHS combines deep technical expertise with a practical, client-focused approach. Our multidisciplinary team — scientists, engineers, geologists, industrial hygienists, toxicologists, and safety specialists — delivers integrated solutions across the full life cycle of environmental, health, and safety challenges. Whether you need a Phase I site assessment, an enterprise ESG program, or 24/7 emergency response, we work side by side with you to protect people, property, and progress.
What we do
Practice areas
Nine integrated practices, one team. Explore each service to see how we can support your project.
Engineering & Environmental Sciences
Phase I/II, soil-vapor/groundwater investigations, remediation design, and closure strategy from due diligence through completion.
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Industrial Hygiene
Hazard assessments, exposure monitoring, IAQ, noise, Legionella, PPE, plus OSHA compliance, construction safety, confined space, and training.
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Building Sciences & Hazardous Materials Management
Surveys, abatement oversight, and clearance for asbestos, lead, PCBs — safe renovations, demolitions, and re-occupancy.
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Environmental Compliance & Permitting
SWPPP, air district rules, NPDES, SPCC, CUPA, audits, training — keeping projects permitted, compliant, and moving.
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Air Quality
Emissions reporting, permitting, and consulting for regulatory compliance.
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Safety Consulting
Customized safety solutions that drive organizational success through risk reduction, culture building, program development, and compliance.
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Moisture Intrusion & Microbial Consulting
Preventing mold and water damage to ensure building durability and occupant health.
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ESG & Sustainability
ESG strategy and reporting, LEED/WELL consulting, GHG inventories, carbon roadmaps, and practical metrics for decision-making.
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Green Building Standards
WELL, BREEAM, and IEQ certification
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Tell us about your project
Many of our engagements span multiple practice areas. Share what you’re working on and we’ll route you to the right experts — usually within one business day.