Inspection and Remediation Services

Tetra Tech provides comprehensive contaminated land inspection and remediation solutions to help clients mitigate environmental risk, secure regulatory approvals, and unlock land and property development potential. With decades of experience across the UK and Europe, our teams apply technical rigour and scientific insight to characterise, assess, and remediate sites and properties including buildings, water and wastewater plants, and transportation and highway structures.

We support the full project lifecycle—from preliminary risk assessment to the implementation of complex remediation strategies. Our services are underpinned by our Leading with Science® approach, combining geotechnical expertise, property expertise, digital innovation, and environmental stewardship to deliver outcomes that are safe, compliant, and commercially viable.

Site Characterisation and Risk Assessment

We deliver robust site investigation and risk assessment services that form the foundation of effective land management and remediation strategies.

• Phase 1 desk studies and historical data reviews
• Phase 2 intrusive site investigations
• Groundwater, soil, vapour, and gas monitoring
• Generic and detailed quantitative risk assessments
• Development of conceptual site models
• Stakeholder engagement and regulatory liaison

Remediation Design and Implementation

Our experts design and deliver remediation schemes tailored to the technical and regulatory needs of each site, supporting safe and timely land reuse.

• Property and asset condition and defect assessments
• Property and asset repair and remediation strategies
• Feasibility studies and remedial options appraisal
• Remediation method statements and verification plans
• In situ and ex situ treatment technologies
• Excavation, stabilisation, and capping works
• Construction phase support and site supervision
• Remediation verification and closure reporting

Brownfield Redevelopment Support

We help public and private sector clients transform underutilised brownfield land into sustainable developments.

• Planning and permitting support for redevelopment
• Integration of remediation into land use masterplanning
• Support with Part 2A, planning conditions, and the National Planning Policy Framework (NPPF)
• Technical due diligence for land acquisition and sale
• Cost estimation and value engineering of remediation schemes

Environmental Due Diligence and Audit

We provide clarity and confidence to investors, developers, and asset managers through independent environmental inspections and audits.

• Pre-acquisition and divestment due diligence
• Regulatory compliance and liability assessments
• Site condition reports and environmental audits
• Bespoke reporting for financiers, insurers, and legal advisors