What We Do

Liability evaluations and property transaction support.

• Phase I and Phase II Environmental Site Assessments
• Historical use and regulatory records review
• Soil, groundwater, vapor, and indoor air investigations
• Property transaction support
• Environmental liability and cost evaluations

Comprehensive environmental compliance, permitting, and regulatory reporting services.

• Hazardous materials business plans (HMBPs) and CUPA program compliance
• Stormwater permits and SWPPP development
• SPCC plan preparation
• Underground storage tank (UST) compliance
• Environmental compliance audits
• Regulatory reporting and agency submittals

Site characterization, risk assessment, and agency coordination for closure.

• Site characterization and conceptual site models
• Emerging contaminant and PFAS site investigation and regulatory compliance support
• Regulatory agency coordination and approval support
• Closure strategy development
• Environmental risk management for redevelopment projects

Toxicology and risk-based services to evaluate exposure, support regulatory closure, and manage long-term liability.

• Human health risk assessments
• Ecological screening-level risk assessments
• Toxicology evaluation and chemical-specific dose-response analysis
• Exposure pathway and receptor analysis grounded in risk-based conceptual site models
• Vapor intrusion and indoor air quality risk characterization
• Risk-based cleanup level development and remedial goal support
• Institutional controls and long-term risk management planning

Design and implementation of soil, vapor, and groundwater remediation systems.

• Remedial investigations and feasibility studies
• Remedial action and corrective action plans
• Soil, soil vapor, and groundwater remediation
• In-situ treatment systems
• Vapor and methane mitigation system design
• Soil vapor extraction, air sparging, and treatment optimization

Environmental oversight and soil management during active construction.

• Environmental oversight during redevelopment and construction
• Soil management planning and implementation support
• Contaminated soil handling and disposal coordination
• Groundwater and vapor controls during construction
• Closure documentation and completion reporting
• Institutional controls and land use covenants

Site-specific mitigation strategies for managing vapor intrusion risks during redevelopment and property reuse.

• VIMS engineering evaluation and design
• Vapor barrier and sub-slab venting systems
• Passive and active mitigation approaches
• Utility line, trench, and penetration sealing
• Construction oversight and performance verification
• Commissioning, regulatory support, and long-term monitoring