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

Freshwater invertebrate surveys

There are a number of species of freshwater invertebrate that receive legal protection and may require consideration at the planning stage.

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Fish surveys

We have over 30 years experience undertaking fisheries surveys, and assessments in marine, estuarine and freshwater environments.

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Fisheries and aquatic science

Our state of the art laboratory is equipped so we can provide a number of services

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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 Unicomarine’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

Dr Phil Aldous

Director of Water

Guildford Office

Thomson Ecology
Compass House,
60 Priestley Road
Surrey Research Park

+44 (0)1483 466 006

Accreditations and awards

Thomson Ecology Handbook

This online version of the Thomson Ecology Handbook provides a general overview of current wildlife legislation* and is aimed at helping project managers understand and plan for ecology from the start.

Find out more

Get in touch

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