We understand the regulatory and legislative constraints with freshwater management and the environmental pressures on precious water resources. Working with you, we solve problems, obtain approvals and enable your water related projects to progress smoothly.

We have a team of specialists with expertise in all aspects of water resource management, water quality, hydrogeology and hydrology, operating alongside our full service laboratory.

Freshwater impact assessments

We deliver scientifically robust and regulatory compliant assessments including freshwater Ecological Impact Assessments (EcIA) and Water Framework Directive (WFD) assessments.

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Aquatic pollution

We have a strong track record of providing clients with robust assessments of ecological damage and accurate assessments of ecosystem recovery time.

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Fisheries management services

Should you encounter an issue that you would like help resolving, or require advice with regards to making improvements, Thomson’s fisheries scientists are here to help.

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Freshwater surveys

Our aquatic team provide clients with a comprehensive range of surveys that give a robust understanding of the impacts of their operations on aquatic ecosystems.

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Catchment management

We support you in the development and implementation of a catchment approach to water quality and flood defence.

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Sewerage discharges and SuDS

The pressure on new development to deliver Sustainable Drainage System (SuDS) solutions is immense.

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Our experienced team have specialist expertise in all areas of hydrogeology.

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Hydrologists apply scientific knowledge and mathematical principles to mitigate water-related problems in society and environmental protection.

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Groundwater and surface water monitoring

We design, evaluate and advise on sampling programmes and strategies and carry out data collection programmes.

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Freshwater management services

Our team of freshwater specialists have expertise in water resource management, water quality, hydrogeology and hydrology.  We offer a range of services including regulatory assessments, permissions and permits, groundwater and surface water monitoring, sewerage discharges and SuDS assessments, and catchment management services.

Get in touch today to discuss your freshwater requirements.


Companies and organisations we work with

This WFD assessment is one of the best that we have received.

WFD Assessment, Environment Agency

We are impressed by Thomson’s in-depth technical knowledge in this area and their enthusiasm to do a good job for us.

Dave Levell, Environment Manager, Milford Haven Port Authority

‘Correct identification is of paramount importance to our work at the Environment Agency; we need to be absolutely certain of the species’ ID as it influences WFD estuary fish classification scores. Thomson Unicomarine gave a quick turnaround on the project and provided us with the identifications, dissected specimens and material that we can use as teaching aids.’

Rob Hillman, Senior Environmental Monitoring Officer, Environment Agency.

Key Contact

Tessa Harding

Director of Aquatic Ecology

Guildford Office

Compass House
60 Priestley Road
Surrey Research Park

+44(0)1483 466 000

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