Catchment area 2,199 ha, length 8.4km. Not designated artificial or heavily modified.


Waterbody description

This narrow waterbody drains from Sunhill (to the east of Poulton village) southwards towards Meysey Hampton, passing under the A417. The brook flows around the village of Marston Mersey and joins the River Thames to the west of Castle Eton.

The brook flows over Alluvium superficial deposits of clay, silt, sand and gravel, however the bedrock geology is predominantly limestone.


Land use and designations

Agriculture is the dominant land-use within this waterbody


Flora and Fauna


Conclusions and issues


Water Framework Directive


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