Blue green algae bloom on the River Thames

Water sample

We are pleased that we can now remove our advice against bathing and avoiding contact with the water.

We have received two consecutive weeks of algae monitoring analysis, showing that all River Thames sample locations, from Hampton Ferry to the Ham and Kingston Bathing Water, have been assessed as ‘PASS’. 

The river’s condition has improved significantly, and no floating algal scum has been observed either in the river or in the samples collected.

The advice against bathing notice, will be removed from the Designated Bathing Water and warning signs are being taken down from affected lock sites and slipways.

We have also updated the SwimInfo. website, where you can find out the latest updates on bathing water sites in your area.