Technical Environmental Services

Tetra Tech’s technical environmental services enable clients across the public and private sectors to make informed decisions by identifying and managing environmental risks. Our specialist teams offer multidisciplinary expertise in air quality, acoustics, noise and vibration, lighting, flood risk, and geo-environmental conditions, supporting planning, permitting, and ongoing operations. Our experts are supported by global environmental management and compliance expertise.

We combine deep regulatory knowledge with innovative data modelling and assessment tools to deliver cost-effective, sustainable outcomes. Our integrated approach ensures that clients meet environmental obligations while supporting project viability and enhancing environmental performance.

Air Quality and Odour Assessments

We help clients understand and manage emissions and odour risks through robust monitoring and predictive modelling.

• Air quality impact assessments for planning and permitting
• Odour assessments and abatement strategy support
• Air dispersion modelling using ADMS and AERMOD
• Monitoring strategies for construction and operational phases
• Indoor air quality and occupational exposure analysis
• Stakeholder engagement and reporting
• Stack height modelling

Acoustics, Noise, and Vibration

We deliver assessments that enable planning, permitting, and building control compliance and effective design.

• Noise and vibration measurement, monitoring, control, and mitigation
• Noise modelling (e.g. CadnaA, SoundPLAN)
• Noise impact assessments for planning and permitting
• Industrial assessments (Industry, Data Centers, Solar, BESS, Battery Storage)
• Transportation noise and vibration
• Wind farm noise assessments
• Building and architectural acoustics (RIBA Design Stages 2-6)
• Occupational noise and Hand Arm Vibration (HAV) monitoring and assessment
• Underwater acoustics
• Expert witness services for appeals and inquiries

Lighting Assessments

Our lighting consultants evaluate the effects of artificial lighting on people and wildlife to support compliant, low-impact design.

• Lighting impact assessments (LIA) for planning
• Obtrusive light and sky glow analysis
• Glint, glare, and light spill mitigation advice
• Modelling of proposed lighting schemes
• Compliance with ILP and BSI guidelines
• Ecological lighting strategies in sensitive locations

Flood Risk Assessment and Modelling

Our teams assess flood risk using advanced modelling to support land use planning, infrastructure resilience, and regulatory compliance.

• Regional and site-specific flood risk assessments (FRAs)
• Hydraulic and hydrological modelling
• Integrated catchment modelling
• Flood zone mapping
• Surface water management strategies
• Sustainable drainage (SuDS) design integration and nature-based flood management solutions
• Flood forecasting
• Emergency planning and climate change impact assessment
• Infrastructure planning and design support