River Tarrant Protection Society

Evidence · Advocacy · Action

Keep the River Tarrant flowing

The Tarrant, our Dorset chalk stream, now runs dry each year, harming wildlife, the community and the valley. We are local volunteers who gather and share evidence, monitor flows and habitats, and work with residents, farmers, Wessex Water and the Environment Agency on practical fixes.

Latest news Reports and minutes

Source to Stour

  1. Rises near Stubhampton
  2. Tarrant Gunville
  3. Tarrant Hinton
  4. Tarrant Launceston
  5. Tarrant Monkton
  6. Tarrant Rawston
  7. Tarrant Rushton
  8. Tarrant Keyneston
  9. Tarrant Crawford
  10. Joins the River Stour
The River Tarrant running clear over gravel beneath overhanging trees
The Tarrant in flow, April 2020

About us

What we investigated

The River Tarrant Protection Society (RTPS) commissioned an independent review of why our chalk stream has seen more frequent low flows and drying. The work gathered historic accounts and archives, including mill records and fisheries notes, alongside rainfall data, observation-borehole groundwater levels and spot-gauged river flows. It considered a range of potential influences, including climate variability, land use and public water-supply abstraction, and tested a simple catchment model against what residents and volunteers have observed on the ground.

What we’re doing next

RTPS will engage with the Environment Agency, Wessex Water and local partners to review the evidence together and agree next steps. We’ll focus on a practical, monitoring-led approach so changes can be tracked clearly and transparently, without pre-judging a single “fix”. We’ll keep the community involved through local meetings and regular updates in The Tarrant Times and online.

A dry, grassed-over river channel running through pasture with cattle grazing beside it
The dry bed of the Tarrant, 15 October 2026
A dry gravel river bed curving through a field behind a metal gate
Dry gravel in the river bed, 15 October 2026
Watercolour illustration of a clear chalk stream with water crowfoot in flower, brown trout, an otter, a water vole, a kingfisher, a heron and a grey wagtail
Illustration: a chalk stream in good health
A still, tree-shaded pool on the river with elder in flower
The Tarrant in May 2020

Latest news

All news
· RTPS editors

John Lawson’s abstraction report

“Low flows and drying of the River Tarrant: history, causes, impacts and potential solutions.” The independent review commissioned by RTPS, published in full.

Read the report

The record

Reports, reviews and the agreed minutes of our meetings with the Environment Agency, published in full.

All documents

Seen the river low or dry?

Report it to the Environment Agency's 24-hour incident hotline, then let the Society know. Each report adds to the record.

EA incident hotline 0800 80 70 60 Then email [email protected]