Contaminated land

Contaminated land & soil remediation consultancy

Evidence-led support across the contaminated-land lifecycle — from investigation review and soil washing to remediation technology selection, risk-based strategy, and defensible reporting.

The challenge

Every contaminated site is a decision under uncertainty.

Investigation data is rarely complete, remediation options carry different cost and risk, and the outcome has to satisfy regulators, owners, and future site users alike.

The value isn't in defaulting to dig-and-dump — it's in matching the right method to the site and proving the decision is sound.

What we do

Support across the contaminated-land lifecycle.

Investigation

Site investigation review

Assess whether investigation design and data actually answer the risk question, and identify the gaps that matter.

Selection

Remediation technology selection

Compare options — including soil washing — against contaminant, soil type, receptors, and regulatory drivers.

Risk

Risk-based decision support

Conceptual site models, exposure pathways, and lines of evidence for defensible, proportionate decisions.

Monitoring

Monitoring & verification

Monitoring design and verification that remediation has achieved its objectives.

Modelling

Fate & transport modelling

Contaminant transport and mass-balance modelling to support remediation design and scale-up.

Reporting

Regulator-facing reporting

Clear, transparent reporting that a technical team, regulator, or project board can act on.

Remediation methods we assess

Soil washing and the wider remediation toolkit.

We evaluate and combine methods rather than defaulting to any single one.

Soil washing

Ex-situ separation and concentration of contamination from excavated soil, reducing the volume needing disposal or treatment.

In-situ treatment

Treating contamination in place where excavation is impractical or disruptive.

Stabilisation & solidification

Immobilising contaminants to reduce leaching and risk.

Excavation & ex-situ treatment

Targeted removal with off-site or on-site treatment where it is the sound choice.

Monitored natural attenuation

Evidence-based reliance on natural processes with appropriate monitoring.

Pump and treat

Hydraulic containment and above-ground treatment for impacted groundwater.

Related

PFAS-contaminated sites are a core specialism.

Many contaminated-land projects now involve PFAS. Our dedicated PFAS work integrates directly with contaminated-land strategy, investigation, and monitoring.

PFAS remediation services

Who we work with

Specialist contaminated-land input, wherever the site is.

Aquentis works with international clients — site owners and developers, engineering consultancies needing specialist depth, and regulators and agencies reviewing evidence and building guidance.

Enquire

Tell us about your site.

Share a short, non-confidential summary of the site or system, the decision you need to make, and the data you already have. We'll come back with how we can help.

Prefer email? Write to info@aquentisenviroconsultancy.com.

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