River Thames Water Quality Testing Group sites

The River Thames Water Quality Testing Group is operated by volunteers who enjoy wild swimming, paddle-boarding and boating, and are concerned about the water quality in the River Thames and the lack of up-to-date information. Together with a number of organisations with similar concerns, they conduct tests at a number of places on the river between Oxford and Windsor.

Citizen science data from 14 sites measure two different types of bacteria; Escherischia coli (EC) and Intestinal enterococci (IE).

Visit their website for more information.