Data-Driven Remediation Planning

Successful soil cleanup starts with a clear understanding of the contamination. Using our Remedial Design Characterization process, we develop a Quantitative High-Resolution Conceptual Site Model that defines contaminant type, concentration, and distribution—both vertically and laterally. This ensures that cleanup efforts are precisely targeted for maximum effectiveness.

In-Situ Soil Remediation

When conditions allow, AST treats impacted soils in place using methods such as In-Situ Remediation with site-specific reagents to promote rapid contaminant breakdown including:

• Overburden Injection to target dissolved-phase hydrocarbons in unconsolidated soils
• Bedrock Injection to address impacts in fractured bedrock formations
• GeoTAP™ (Pre-Drill Methodology) for in-situ treatment of contamination in lithology that is difficult to access using direct push technology alone
• Permeable Reactive Barriers (PRBs) installed to prevent contaminant migration and protect downgradient receptors

Ex-Situ Soil Treatment & Removal

Where excavation is the most effective approach, AST offers:

• Soil & Waste Excavation – Complete removal of contaminated materials for offsite disposal or treatment.
• Soil Mixing – On-site blending of soils with amendments to treat contamination before placement or reuse.
• Environmental Construction – Support for site grading, backfilling, and restoration following cleanup activities.

Contaminant Types We Address

Our soil cleanup services are effective against a wide range of contaminants, including:

• Petroleum hydrocarbons
• Chlorinated solvents
• Heavy metals
• PFAS and emerging contaminants
• Industrial process chemicals and byproducts

Integrated Soil & Groundwater Remediation

In many cases, soil contamination cleanup is part of a larger remediation effort involving impacted groundwater. Our Groundwater Treatment services can be implemented in parallel, ensuring complete contaminant source control and preventing recontamination.

Proven Results, Faster Closures

Whether working on a Brownfield Remediation project, an Industrial Site Cleanup, or an Oil and Gas Spill Remediation, AST’s integrated approach delivers measurable results and regulatory compliance—often ahead of schedule. Our expertise, technology, and attention to detail help clients achieve cleanup goals while minimizing project costs and disruption.