Brook Levels

The Pillhill Brook Association are curious to find out how groundwater level affects the depth of the brook throughout the year. With PBA volunteers recording water depth at 9 locations along the brook and groundwater level in a number of boreholes in the north of the catchment we can start to create a flow map of the brook.

Play the slide presentation below to see how brook flow has changed over the summer. 

Watch the top left hand corner of the slides as the blue line (showing the course of the Pillhill Brook) starts to disappear over time from Kimpton southwards and Thruxton eastwards. You can also see how the leat in Amport Fen has dried.

The Environment Agency use groundwater levels at Clanville Gate and Kimpton High View boreholes to help them assess flood or drought risk in our area. So the table in the top left hand corner of the map shows how groundwater levels at these boreholes has changed as the brook ceases to flow. 

As of 22 August 2025 the Pillhill Brook is dry all the way down to Mullens Pond in East Cholderton just south of the A303 and the leat in Amport Fen is now also dry.