The Lea is one of the most polluted catchments in Britain
Working with an Oxford University computer modelling system tailored to therequirements of this project, T21 ran a series of workshops led by a new Project Officer to train and involve members of the local community to become Community Champions groups.
The three community modelling groups learnt how to identify, analyse, investigate and test scenarios of implementing green infrastructure using an integrated catchment management approach. The three catchments chosen were the Salmons Brook, Ching Brook and Pymmes Brook catchments. All are located in heavily urbanised areas, where urban diffuse pollution and misconnections in the separate sewer systems can affect the rivers health.
As the process continued the groups knowledge of water quality modelling increased as did their educational awareness to the issue of water quality. Walkovers, site visits and sustainable drainage systems tours were completed in the first 3 months of the project and helped the groups prioritise areas that are pollution hotspots. Mapping workshops were undertaken to investigate areas in which potential sites could have constructed wetlands developed on. Using the INCA software it has been possible to develop scenarios to account for the addition of constructed wetlands.