San Diego skyline at night across the water from Coronado

San Diego

Environmental consulting inSan Diego

More than 30 years of environmental, health, safety, and sustainability expertise for employers across San Diego County.

Photo: Himmel S / Unsplash

Citadel EHS supports a region defined by life sciences, defense, telecommunications, and large public infrastructure projects. We work with biotech and pharma companies along the Torrey Pines mesa, naval and defense contractors, telecom data centers, hospitals and research institutions, and major construction and real-estate developers across San Diego County.

We work with the San Diego County Air Pollution Control District, the San Diego Regional Water Quality Control Board, Cal/OSHA, and DTSC on projects across the county. Our San Diego and North San Diego offices are the local points of contact.

Start a conversation

Tell us about your needs — we’ll respond within one business day.

By submitting, you'll also receive our newsletter. You can unsubscribe at any time.

Trusted across San Diego County

  • San Diego Unified School District (SDUSD)
  • City of Oceanside

Featured

Featured projects in the San Diego region

A selection of our work across San Diego County.

Multifamily Moisture & Microbial Consulting Program
Real Estate

Multifamily Moisture & Microbial Consulting Program

Citadel EHS provides comprehensive moisture and microbial consulting services for a confidential multifamily residential owner and operator during an active capital-improvement program at a San Diego apartment community. With approximately 201 incidents anticipated over the program period, Citadel developed a coordinated approach to provide responsive field support, consistent technical evaluation, and reliable documentation across a high volume of residential-unit investigations.

Education

San Diego Unified School District

Citadel EHS, through its integration with Aurora Industrial Hygiene, provides ongoing hazardous materials, industrial hygiene, and environmental consulting to San Diego Unified School District in support of school modernization, renovation, remediation, and facility improvement projects across the District’s K-12 portfolio. Our teams have supported elementary, charter, and high school campuses throughout San Diego, helping the District address environmental conditions while maintaining safe, compliant, and well-documented construction programs.

City of Oceanside Health & Safety Support
Government

City of Oceanside Health & Safety Support

Citadel EHS provides ongoing health, safety, and industrial hygiene consulting support to the City of Oceanside, helping the City maintain compliance with applicable local, state, and federal occupational health and safety requirements. The engagement supports a complex municipal organization whose operations span public safety, parks and recreation, public works, water utilities, and water and wastewater treatment.

May 29, 2026

Deepening our San Diego presence

Citadel EHS acquired Aurora Industrial Hygiene, a California firm founded in 1996 by Certified Industrial Hygienists Karen Shockley and Grace Rinck, deepening our industrial hygiene expertise and expanding our presence across San Diego and Los Angeles.

Read the announcement

Talk to us about a project in San Diego

Start a conversation