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Remediation

We provide expert consulting, planning, and execution for the remediation of soil and groundwater contamination - efficiently, safely, and fully compliant.

Practice Lead

Stefanie Kellmann

Contact Stefanie

Reliable Solutions for Contaminated Sites

Soil and groundwater contamination poses risks to both the environment and human health. At CDM Smith, we help you mitigate these risks and guide you through every stage of the remediation process – from initial scoping to construction and ongoing site operations. Whether it’s Pump & Treat or in-situ methods like Air Sparging, Enhanced Anaerobic Bioremediation, or Funnel & Gate systems – we identify the right solutions for your site. With decades of hands-on-remediation experience, CDM Smith is your reliable partner for safe, efficient and compliant delivery. Our interdisciplinary teams of engineers, scientists, and project managers work closely with regulatory authorities to ensure smooth permitting and minimise project risks – combining technical excellence with a clear focus on your remediation goals.

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Remediation Concepts

Our remediation concepts rely on proven ex-situ and in-situ methods.

Enhanced Anaerobic Bioremediation

Under anaerobic conditions, microorganisms are activated by adding nutrients or electron donors to break down contaminants such as those found in groundwater.

Funnel & Gate Systems

Directs contaminated groundwater through impermeable barriers (funnel) into a permeable, reactive zone (gate) where contaminants are degraded and removed.

Air Sparging

Injects air into the subsurface below the groundwater table. The air strips volatile contaminants from the groundwater, transferring them to the soil vapour phase, where they can be extracted and treated.

Pump & Treat

A groundwater remediation method that pumps contaminated water, treats it effectively, and then safely re-injects or disposes of it.

How We Turn Your Remediation Challenges into Smart Solutions

Discover how our technologies and strategies come to life on-site – tailored, effective, and compliant.

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Project

Living and Working on the Water - a New Business and Residential District for Offenbach

CDM Smith is developing the remediation concept for the new urban district on the former industrial harbour in Offenbach.

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Project

Reactivation Opel Plant Bochum

CDM Smith managed demolition planning, mine stabilisation, site preparation and remediation for the former Opel Plant I site in Bochum, Germany.

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Project

International Accelerator Facility FAIR

For the foundation of the accelerator facility, CDM Smith provides all geotechnical consulting, and design services and oversees the execution of the work on site.

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Project

Environmental Site Investigations and Remediation for Bosch Sites in Japan

CDM Smith has performed site investigations and remedial planning services for several Bosch sites in Japan including remediation of soil and groundwater at former production sites.

Related Practices

Curious what else we can do for you? Discover our services and related practice areas.

Redevelopment

We redevelop unused or derelict sites and use innovative concepts to ensure they remain part of the utilization cycle for as long as possible.

Solid Waste

From landfill planning to energy recovery – we secure legacy landfills and guide you through complex permitting procedures.

Special Foundation Engineering

Every construction project needs a solid foundation – we deliver special foundation and geotechnical engineering solutions for stability, safety and long-term performance.

Geotechnics

From ground investigation to execution: Our geotechnical experts support you in every project phase with in-depth know-how and innovative methods.

Infrastructure

Forward-looking infrastructure starts with planning expertise: We assess feasibility, evaluate risks, and develop the best solutions for your project.

Tunnelling

We combine detailed planning with smart solutions to master even the most complex ground conditions.