Integrated Catchment Management

Tetra Tech provides integrated catchment management services that help stakeholders understand, plan, and manage water systems holistically. By examining the interdependencies between land use, water quality, biodiversity, and flood risk, we develop strategies that balance environmental protection with community and economic needs.

Our multidisciplinary teams combine environmental science, modelling, engineering, and stakeholder engagement to deliver innovative, data-led solutions. We enable clients to address regulatory requirements, climate resilience, and sustainable land and water use through catchment-based approaches that deliver measurable, long-term benefits.

Catchment Planning and Modelling

We help clients understand and manage complex catchment systems through robust analysis and scenario planning.

• Integrated water cycle modelling and hydrological analysis
• Strategic catchment planning for long-term sustainability
• GIS-based data visualisation and mapping
• Identification of priority areas for intervention
• Asset management and infrastructure investment planning

Natural Flood Management (NFM)

Using nature-based solutions, we reduce flood risks while improving habitats and water quality.

• NFM opportunity mapping and feasibility studies
• River restoration and wetland creation
• Soil and land management to reduce runoff
• Monitoring and adaptive management strategies

Water Framework Directive (WFD) and Regulatory Compliance

We support clients in meeting WFD objectives and other regulatory standards through targeted action plans.

• Evidence-based assessments and risk screening
• Measures appraisals to achieve Good Ecological Status
• Development of river basin management plan (RBMP) compatible programmes of work
• Liaison with regulators and catchment partnerships

Stakeholder Engagement and Partnership

Collaborative planning is central to successful catchment management, and we support clients and partners to work together to plan and execute a shared vision.

• Facilitation of catchment partnerships and forums
• Stakeholder mapping and engagement strategy design
• Public consultation and communication planning
• Capacity building for local delivery partner strategies

Catchment Monitoring and Evaluation

We provide baseline studies and performance monitoring to support adaptive management.

• Design and implementation of monitoring frameworks
• Data collection and analysis for water quality, hydrology, and biodiversity
• Evaluation of intervention effectiveness
• Reporting to stakeholders and funders