Tuckmill Brook and tributaries - GB106039022920 Catchment area 26.2km2, length 12km. Not designated artificial or heavily modified. Waterbody description WFD 2016 overall is Poor, failing for phosphate from probable sewage point source pollution. Rising in Idstone and Ashbury, two streams flow northerly towards Stainswick, winding through agricultural fields before passing the Great Western railway to reach east Shrivenham. It flows to the south of Watchfield and joins the river Cole at Bower Bridge. The geology is chalk in the upper reaches, flowing over bands of sandstone and clay before reaching limestone before its confluence. Land use and designations Flora and Fauna Conclusions and issues Water Framework Directive http://environment.data.gov.uk/catchment-planning/WaterBody/GB106039022920 Click here to go back to the main waterbodies information page Manage Cookie Preferences