# Citadel EHS

> Citadel EHS is a national environmental, health, safety, and sustainability (EHS&S) consulting firm founded in 1993. Headquartered in Glendale, California, with 10 offices coast-to-coast (in California, Washington, Oregon, and North Carolina), Citadel EHS serves employers across the United States with federal and state-level regulatory expertise.

## About Citadel EHS

- [About Citadel EHS](https://citadelehs.com/about): Company history, mission, and values.
- [Leadership Team](https://citadelehs.com/leadership): Executive team with credentialed CIHs, CSPs, CHMMs, PEs, and PGs.
- [Careers](https://citadelehs.com/careers): Current openings and benefits for EHS professionals.
- [Contact](https://citadelehs.com/contact): Direct contact form and office phone numbers.

## National coverage and capabilities

- [National Coverage](https://citadelehs.com/coverage): EHS consulting across all 50 U.S. states with multi-state program delivery, federal regulatory expertise, and single-vendor consistency for nationwide employers.
- [All Offices](https://citadelehs.com/offices): Full directory of 10 coast-to-coast Citadel EHS offices.

## State expertise hubs

- [California EHS Consulting](https://citadelehs.com/offices/california): 7 offices across LA, OC, San Diego, Bay Area, and Northern California. Cal/OSHA, CalEPA, CARB, SCAQMD, BAAQMD, and RWQCB experience.
- [Washington EHS Consulting](https://citadelehs.com/offices/washington): Seattle office serving the Puget Sound region. WA DOSH, Department of Ecology, PSCAA, and Climate Commitment Act expertise.
- [Oregon EHS Consulting](https://citadelehs.com/offices/oregon): Portland office. Oregon OSHA heat illness and wildfire smoke rules, DEQ, Cleaner Air Oregon, Climate Protection Program.
- [North Carolina EHS Consulting](https://citadelehs.com/offices/north-carolina): Charlotte office serving the Carolinas. NC OSH, NC DEQ, PFAS, and cross-border SC DHEC.

## Federal regulatory expertise

- [Federal Regulations Overview](https://citadelehs.com/regulations/federal): How federal-plan vs state-plan OSHA works, and which federal agencies we navigate daily.
- [Federal OSHA Compliance](https://citadelehs.com/regulations/federal/osha): 29 CFR 1910 (General Industry), 1926 (Construction), 1928 (Agriculture), 1915-1919 (Maritime), 1904 (Recordkeeping), PSM (1910.119). National Emphasis Program priorities and inspection response.
- [EPA Compliance](https://citadelehs.com/regulations/federal/epa): Clean Air Act, Clean Water Act, RCRA, CERCLA, TSCA, and EPCRA / SARA Title III. Federal environmental permitting, Phase I/II ESAs, Tier II reporting, PFAS.
- [NEPA Consulting](https://citadelehs.com/regulations/federal/nepa): National Environmental Policy Act reviews. Categorical Exclusions, Environmental Assessments (EAs), Environmental Impact Statements (EISs). FRA 2023 reforms and CEQ regulations.

## Services

- [Engineering and Environmental Sciences](https://citadelehs.com/services/engineering-environmental-sciences): Phase I/II ESAs, remediation, RI/FS, brownfield redevelopment.
- [Industrial Hygiene](https://citadelehs.com/services/industrial-hygiene): IH air monitoring, exposure assessments, respiratory protection programs, lab safety.
- [Building Sciences & Hazardous Materials](https://citadelehs.com/services/building-sciences): Asbestos, lead, PCBs, mold management.
- [Environmental Compliance & Permitting](https://citadelehs.com/services/environmental-compliance): Regulatory navigation, permitting, agency engagement.
- [Environmental Air Quality](https://citadelehs.com/services/air-quality): Air permitting, emissions inventories, dispersion modeling.
- [Safety Consulting](https://citadelehs.com/services/safety-consulting): IIPPs, APPs, safety program development, OSHA compliance.
- [Moisture Intrusion & Microbial Consulting](https://citadelehs.com/services/moisture-intrusion): Water damage assessment and mold remediation.
- [ESG & Sustainability](https://citadelehs.com/services/esg-sustainability): GHG inventories, climate disclosure, ESG reporting, SB 253/261 California climate laws.
- [Green Building Standards](https://citadelehs.com/services/green-building-standards): LEED, WELL, Fitwel certifications.

## Office locations

- [Glendale, CA (HQ)](https://citadelehs.com/offices/glendale): Headquarters serving greater LA. Cal/OSHA, SB 553, SCAQMD.
- [Irvine, CA](https://citadelehs.com/offices/irvine): Orange County tech, medical device, biotech.
- [Valencia, CA](https://citadelehs.com/offices/valencia): Santa Clarita Valley, aerospace, film, entertainment.
- [Long Beach, CA](https://citadelehs.com/offices/long-beach): Port operations, oil and gas, logistics, CARB Advanced Clean Fleets.
- [San Diego, CA](https://citadelehs.com/offices/san-diego): Biotech, defense, telecom, SDAPCD.
- [Walnut Creek, CA](https://citadelehs.com/offices/walnut-creek): Bay Area, BAAQMD, technology, energy.
- [Grass Valley, CA](https://citadelehs.com/offices/grass-valley): Sierra Nevada foothills, mining (SMARA), agriculture.
- [Seattle, WA](https://citadelehs.com/offices/seattle): Puget Sound aerospace, tech, maritime. WA DOSH, PSCAA.
- [Portland, OR](https://citadelehs.com/offices/portland): Silicon Forest, apparel, food and beverage. Oregon OSHA heat and wildfire smoke rules, DEQ.
- [Charlotte, NC](https://citadelehs.com/offices/charlotte): Carolinas energy, banking, EV supply chain. NC OSH, NC DEQ, PFAS.

## Credentials and approach

- 30+ years in EHS (founded 1993)
- Credentialed staff: CIH, CSP, CHMM, PE, PG, REA, LEED AP, CAC, CDPH
- Federal- and multi-state regulatory experience
- Single-vendor delivery for multi-site clients
- ISO-aligned quality processes