Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

Contaminated Land & Remediation

Restoring land for safe, compliant future use
Aerial view of excavator working on construction site with dirt piles and worker nearby
Environmental field technician handling soil or material samples for contamination testing.
INTRO

Unlocking land value through environmental clarity

Historic industrial activity, aging infrastructure and legacy waste disposal can leave contaminants in soil and groundwater that affect redevelopment feasibility, regulatory compliance and long-term asset value. These impacts can delay projects, increase financial liability and create uncertainty for developers, asset owners and public agencies.

Clear environmental understanding is essential. Environmental site assessments and investigation programs define the nature and extent of impacts across soil, groundwater, surface water, sediment and vapor pathways. Integrated field programs, laboratory testing and analysis and environmental modeling help organizations get a clear understanding of contaminant behavior, evaluate risk pathways and establish defensible evidence for regulators, investors and stakeholders.

With reliable data as the foundation, we develop and implement practical risk-based remediation strategies that support effective contaminated site management, helping organizations manage environmental liability, achieve site closure goals, reduce liability, enable brownfield redevelopment and infrastructure investment, and return impacted land to safe, productive use that supports community renewal.
Man looking over mountain hill landscape

Start the conversation

Contaminated land challenges affect industries where historic operations, infrastructure and redevelopment pressures intersect with environmental responsibility and regulatory oversight.
Why it matters

Contaminated land challenges extend far beyond the project site

Developers, asset owners and public agencies rely on clear environmental evidence to define risk and determine the most appropriate path forward for contaminated land. Clear environmental site assessments and modeling enable development of practical, risk-based approaches to manage environmental liabilities efficiently.

Defensible data supports regulatory engagement, financing decisions and community confidence. With a clear understanding of site conditions and contaminant behavior, organizations can manage environmental liability, design effective remediation programs and move redevelopment projects forward with greater certainty.
Environmental field workers handling remediation materials at a remote project site.
Open land area prepared for environmental assessment or remediation work.
Hand holding soil during environmental testing or land restoration work.
Solutions

Strengthening redevelopment outcomes
and environmental accountability

Clarify environmental liability and contamination conditions across complex sites

Enable brownfields redevelopment and recovery of underused land value

Reduce environmental risk and long term liability exposure

Support faster pathways to regulatory closure and land reclamation

Deliver defensible environmental data for investment and redevelopment decisions

Return contaminated land to safe, productive and compliant use

Contaminated Site & Remediation Solutions

Scientific insight guiding remediation from investigation to closure

Our integrated strategies generate defensible evidence, guide risk-based remediation decisions, and support regulatory closure across complex contaminated land and brownfield redevelopment projects.
Environmental technician collecting soil samples for contamination analysis and remediation planning.

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