Tetra Tech is Leading with Science® to support industrial and water utilities clients with technical solutions that optimise sustainable water use and minimise environmental impact.

Our water services draw from the multidisciplinary capabilities of our engineers, planners, and environmental experts. We tackle a host of water-related issues facing new developments and strategies, addressing flood risk, water quality, biological impact, carbon footprint, and more.

Tetra Tech’s work in the UK’s water sector spans projects and programmes for various industrial clients and water utilities companies, including United Utilities and Northern Ireland Water. Our team is providing strategic technical advice to a major water utilities provider in the UK, taking holistic approaches to low-impact, time-efficient, and low-cost solutions that prioritise green infrastructure.

Tetra Tech has been ranked #1 in Water by Engineering News Record magazine for 17 years in a row. We are involved in all phases of the water cycle, combining state-of-the-art techniques and demonstrated best practices. Backed by the extensive knowledge of our U.S-based water team, we bring a comprehensive understanding of water and wastewater legislation, policy, and implementation across the complex and ever-changing regulatory framework. With this knowledge, we can work with clients to proactively plan to address drivers and the pressures they face to develop both short-term and long-term water quality and quantity solutions.

Our capabilities include flood risk assessment and Sustainable urban Drainage Systems (SuDS), water resources, hydrogeology, groundwater, and wastewater treatment.

Our Water expertise includes:

Flood Risk Assessment & SuDS

  • Fluvial, pluvial, marine, groundwater, inter-urban & reservoir flood risk assessment & management
  • Consent & approvals
  • SuDS design
  • Drainage design, including flow control & attenuation
  • Water networks collection / distribution
  • Hydraulic / network modelling of watercourses, drainage systems, & overland flows
  • EIA / ES chapters
  • Engineering design services, including new flood defences
  • Geotechnical investigations, including to support the design of new flood defence projects
  • Geomorphological investigations

Water Resources

  • Groundwater resource development
  • Private water supply
  • Source protection zone assessments
  • De-watering design
  • Hydrogeological risk assessments
  • Contaminant flow & transport modelling
  • Hydro-ecology
  • Design, installation, & operation of Local & National groundwater monitoring strategies

Industrial Water Services

  • Industrial water treatment
  • Industrial wastewater treatment & disposal
  • Industrial water supply development licensing
  • Quarry impact assessment
  • Landfill monitoring
  • Cemetery assessments
  • Water use and efficiency audits
  • Bottled water development and certification of natural mineral waters
  • Compliance monitoring
  • Integrated pollution control license
  • Geothermal feasibility & design

Municipal Water & Wastewater Treatment

  • Feasibility, optioneering, & design for:
    • Water supply
    • Water treatment
    • Wastewater treatment
    • Wastewater networks
    • Sludge treatment
  • Smart networks
  • Real time control systems treatment works
  • Catchment area studies

Related projects and experts

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