Having delivered our environmental measures, it is then vital that we collect sufficient evidence to provide an objective and scientifically robust assessment of the effectiveness of our interventions. Ultimately, we must be able to justify that the money we have spent and the interventions we have made across the landscape have either delivered significant improvements in the health of the environment and/or have generated significant secondary financial, ecological and social benefits.

Defra project assessing effectiveness of catchment managment measures

Improving the health of East London's River Lea

Thames River Watch is a citizen science project which aims to improve our understanding of the health of the tidal Thames.

An application to explore information about designated bathing waters.

A network of nearly 100 partner organisations working together.

Method of assessing the physical diversity of rivers.

Method for locating sediment pollution in river catchments.

Volunteer scheme to spot & report pollution.

Monitoring can be designed to look at biological measures.

Evidence-based assessment of the options to tackle diffuse pollution.

This review  explores the data and evidence available.

 Assessing delivery of objectives and benefits.

FARM SCale Optimisation of Pollutant Emission Reductions model.

The Extended Nutrient Export Coefficient Model

Removing nutrients directly from sewage treatment works effluent. 
Improving volunteer and catchment partnership knowledge to identify barriers to fish passage.
A citizen science project on a small west London river combining Riverfly, phosphorous and outfall monitoring.
Community-based monitoring and modelling project using citizen science.
Supporting the Anglers' Riverfly Monitoring Initiative across the Upper Lea, Colne and South Chilterns catchments.
Training volunteers to carry out walkover surveys, habitat surveys, water quality sampling and kick sampling.
A campaign to collect 1,000 water samples from the Thames River Basin in a single day.
Supporting community groups to take ownership of a waterway.
Using citizen science to reduce the impact of urban pollution upon rivers
Improving polluted urban rivers with better evidence and community engagement.

A 7 step guide to developing a Natural Flood Management Scheme.


The Catchment-Based Approach website is designed to showcase the work of catchment partnerships aross England and Wales and to encourage the sharing and adoption of best practice in stakeholder-led catchment managment planning, delivery and evaluation.


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