California operations
Environmental consulting inCalifornia
Every major California metro and decades of experience navigating the country's most demanding environmental, health, and safety regulatory framework.
Why California EHS&S consulting is different
California operates the most extensive environmental, health, and safety regulatory framework in the United States. Cal/OSHA is stricter than federal OSHA. CARB sets national-leading air and climate standards. CalEPA, DTSC, the regional Air Quality Management Districts, and the Regional Water Quality Control Boards each operate independent permit programs with overlapping jurisdiction, and Proposition 65 adds chemical-exposure obligations on top of everything else.
The companies that thrive under this framework treat compliance as engineering work, not paperwork. Citadel EHS has been operating across California since our founding, and we've built our team and our practice around the specific demands of doing business here. Our California offices put credentialed Certified Industrial Hygienists, Certified Safety Professionals, Certified Hazardous Materials Managers, and Professional Engineers within a short drive of every major employer in the state.
Where we work
California coverage
On the ground
Offices in California
Glendale
Headquarters1725 Victory Blvd
Glendale, CA 91201
(818) 246-2707
Irvine
15635 Alton Pkwy Suite 200
Irvine, CA 92618
(714) 547-4301
Valencia
25115 Avenue Stanford Suite A320
Valencia, CA 91355
(818) 246-2707
Long Beach
2525 Cherry Ave Suite 105
Signal Hill, CA 90755
(818) 246-2707
San Diego
3180 University Ave Suite 330
San Diego, CA 92104
(858) 463-8159
North San Diego
9666 Businesspark Avenue Suite 102
San Diego, CA 92131
(619) 276-5901
Walnut Creek
1371 Oakland Blvd Suite 100
Walnut Creek, CA 94596
(818) 246-2707
Grass Valley
102 Mill Street
Grass Valley, CA 95945
(818) 246-2707
Featured
Projects in California
Be Well Irvine Campus
California Commercial Real Estate Services manages the Be Well Irvine Campus Project, a proposed redevelopment in Irvine, California, designed to address critical mental health and substance abuse treatment needs for Orange County residents. The site is located within and adjacent to the southwestern boundary of the former Marine Corps Air Station (MCAS) El Toro and includes buildings previously used for warehouse, storage, office, and training operations. The facilities were decommissioned in 1999.
Agua Mansa Commercial Park
Citadel EHS was retained by KPRS Construction Services, Inc. to provide environmental monitoring and air quality compliance services, including perimeter PM10 dust monitoring, for the Agua Mansa Commerce Park redevelopment. The site — a former cement manufacturing facility in Jurupa Valley, California — encompasses approximately 282 acres being redeveloped into a large-scale warehouse and distribution center with six industrial buildings, utilities, and parking infrastructure.
WAIRE Program Compliance
Citadel EHS provided environmental compliance consulting to assist a nationwide retail client with the requirements of SCAQMD Rule 2305 — the Warehouse Indirect Source Rule (WAIRE Program) — for warehouse properties in the City of Industry and Chino, California, both within SCAQMD jurisdiction and subject to the rule adopted in May 2021.
Lead in Drinking Water Testing
Citadel EHS was retained by Cadence Academy Preschool to perform lead in drinking water testing at two licensed child care centers in the Valencia neighborhood of Santa Clarita, in response to CDSS Provider Information Notice 21-21-CCP, which outlines mandatory lead sampling and reporting requirements for Child Care Centers under Assembly Bill 2370.
Port of Long Beach
Citadel EHS has supported construction and infrastructure projects at the Port of Long Beach for more than a decade, providing multidisciplinary environmental, health, safety, and sustainability services across complex, active waterfront environments. Working with the Port and its construction partners, Citadel helps project teams identify environmental risks, respond to unexpected field conditions, maintain regulatory compliance, protect workers, and keep critical construction activities moving.
Stormwater Monitoring & Reporting
Citadel EHS provides ongoing stormwater compliance, monitoring, and reporting services to Metrolink under an on-call task order supporting multiple rail and maintenance facilities throughout California, with a focus on the Los Angeles Metropolitan Area. Citadel EHS supports Metrolink’s compliance with the California Industrial General Permit (IGP) and related local, state, and federal environmental regulations.
Who we serve
Industries in California
- Sports & Entertainment
- Healthcare
- Aerospace & Defense
- Commercial Real Estate & Development
- Hospitality
- Government & Public Agencies
- Architecture, Engineering & Construction
- Data Centers & Technology
- Life Sciences & Biotechnology
- Industrial & Manufacturing
- Energy & Utilities
- Legal & Professional Services
- Food & Beverage
- Water & Wastewater