Engineering & Environmental Sciences
Environmental Construction Monitoring & Brownfield Redevelopment
Start a conversationOverview
Redeveloping environmentally impacted properties with environmental challenges requires careful planning, regulatory coordination, and proactive management throughout construction. Citadel EHS helps developers, property owners, contractors, and public agencies transform environmentally impacted sites into productive assets by providing environmental oversight and technical support from pre-development through project completion.
Our team works alongside project stakeholders to identify environmental risks, manage contaminated soil and groundwater, implement mitigation measures, maintain regulatory compliance, and minimize construction delays. By integrating environmental considerations into the redevelopment process, we help clients reduce liability, control costs, and successfully advance projects from acquisition through construction and to occupancy.
Services
- 01Brownfield Redevelopment Planning and Environmental Support
- 02Pre-Development Environmental Planning and Site Characterization
- 03Environmental Compliance Monitoring During Site Development
- 04Soil Management Plans (SMPs) and Implementation Support
- 05Contaminated Soil Characterization, Segregation, and Disposal Coordination
- 06Groundwater Management During Construction Activities
- 07Soil Vapor and Vapor Intrusion Mitigation Support
- 08Vapor Intrusion Mitigation System (VIMS) Installation Oversight
- 09Regulatory Coordination and Compliance Documentation
- 10Construction Completion Reports and Site Closure Support
Project profiles
How we've delivered

Confidential Energy Client
Major Refinery Conversion – Environmental, Safety & Compliance Support
Citadel EHS has provided multidisciplinary environmental, industrial hygiene, safety, and regulatory compliance support for the decommissioning and conversion of a major legacy asphalt and petroleum refinery into a renewable fuels production facility in Los Angeles County.

Hollywood Park Land Company, LLC / Turner Construction Company
Environmental Consulting and Construction Monitoring for Hollywood Park and SoFi Stadium
Citadel EHS provided comprehensive environmental consulting, hazardous materials management, environmental compliance, and air quality monitoring services during the redevelopment of the former Hollywood Park Racetrack property in Inglewood, California.

Legends Project Development on behalf of Los Angeles Football Club
LAFC Stadium & Training Facility Development
Citadel EHS provided environmental and industrial hygiene consulting during development of two major Los Angeles Football Club facilities: Banc of California Stadium and the LAFC Practice Facility and Field at California State University, Los Angeles. Citadel supported project teams with subsurface assessment, construction-phase soil characterization, hazardous materials guidance, and worker and community air monitoring to help address environmental conditions encountered during active construction.

Pivotal Group / Woodridge Capital
Century Plaza Hotel Redevelopment Project
Citadel EHS provided environmental due diligence, hazardous materials consulting, and abatement oversight for the multi-year redevelopment of the historic Century Plaza Hotel property. Services included Phase I and Phase II Environmental Site Assessments, comprehensive Environmentally Regulated Materials surveys across more than 600,000 square feet, and evaluation of asbestos, lead, PCBs, universal wastes, and other regulated materials.

Clark Construction
Long Beach Civic Center Redevelopment – Environmental, HazMat & Industrial Hygiene Consulting
Citadel EHS provided comprehensive environmental, hazardous materials, industrial hygiene, and remediation consulting in support of the Long Beach Civic Center redevelopment in Long Beach, California. The project involved replacement and modernization of aging civic facilities, including City Hall, the Main Library, Lincoln Park, and surrounding site improvements.
Community Development Organization
Environmental Investigation & Redevelopment Support for Affordable Senior Housing
Citadel EHS manages the investigation and remediation of a 0.64 acre commercial property in the City of Oakland within Alameda County. The site is an Equitable Communities Revitalization Grant (ECRG) environmental investigation project under the oversight of the Department of Toxic Substances (DTSC).

Griffin Structures, Inc.
Santa Ana Civic Center Redevelopment Program
The Santa Ana Civic Center Redevelopment Program is transforming a significant portion of Orange County's government campus through the replacement of aging facilities with a modern mixed-use civic complex that will consolidate public services and include new event and conference facilities. The long-term redevelopment effort is being implemented in multiple phases and requires careful management of environmental risks associated with demolition and construction activities.

County of Los Angeles, Department of Public Works
Hazardous Materials Survey, Abatement Oversight, and Industrial Hygiene Services - Martin Luther King, Jr. Medical Campus - Behavioral Health Center/ Old MACC Building
Citadel EHS supported the redevelopment of the Martin Luther King, Jr. Medical Campus Behavioral Health Center (MLK Behavioral Health Center) by providing comprehensive environmental consulting, hazardous materials surveys, industrial hygiene services, and construction-phase environmental compliance support.

BH Luxury Residences LLC
Environmental Consulting & Redevelopment Support for a Landmark Luxury Hospitality Destination
One Beverly Hills is a transformative luxury hospitality and residential development located at the western gateway to Beverly Hills at Wilshire and Santa Monica Boulevards. The approximately 17.4-acre project site encompasses the Beverly Hilton, Waldorf Astoria Beverly Hills, adjacent development parcels, and the former service station property at 9988 Wilshire Boulevard. The broader redevelopment plan integrates new hotel and residential development, extensive landscaped open space and amenities, a conference center, below-grade parking, and enhancements to the existing Beverly Hilton.
Los Angeles World Airports / Myers-Griffith and PCL Construction
LAX ConRAC / Manchester Square Redevelopment
Citadel EHS provided multidisciplinary environmental consulting and construction-phase support for the redevelopment of the Manchester Square neighborhood associated with the new LAX Consolidated Rent-A-Car (ConRAC) facility. Working initially with Myers-Griffith and subsequently with PCL Construction, Citadel supported the project from pre-demolition assessment through abatement, excavation, grading, and active construction.

Centennial GH Partners
Comprehensive Environmental Assessment, Site Investigation, and Mitigation Design – Los Angeles County General Hospital Redevelopment
Citadel EHS performed an Environmentally Regulated Materials (ERM) survey for the redevelopment of the Los Angeles County General Hospital in Los Angeles, California. The survey included the main hospital building, a multi-wing, an 18-story building with a basement, a concrete structure with multiple levels and areas of roofing, built in the late 1920’s to early 1930’s.
More from Engineering & Environmental Sciences
Work with us
Facing something similar at your facility?
Tell us where things stand. We'll route you to the practice leaders who've handled it before — typically within one business day.