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Ammonia Spike From Chesham Sewage Works

Oct 5, 2022
Category: Pollution
Posted by: Kathryn
On 3rd October, we received a call from Thames Water telling us they had detected a spike in ammonia levels in the effluent from the Chesham Sewage Treatment Works.

8-Fold Increase In Aquifer Impact Posed by HS2 Tunnel Consent

Jun 24, 2021
Category: HS2
Posted by: Kathryn

New information from HS2/Align indicates a much greater risk of aquifer contamination than previously admitted. 

Sewage Updates

Mar 21, 2021
Category: Pollution
Posted by: Kathryn

Daily sewage releases into the river could continue into May, but work is underway to tackle groundwater infiltration into Chesham's sewers which is big contributor to this problem.

Work Starts to Fix Sewer Infiltration

Feb 26, 2021
Category: Pollution
Posted by: Kathryn

In March, Thames Water is beginning work to fix groundwater infiltration hotspots in Chesham's sewers. 

Latest News

Sewage Pollution in the Chess

Jan 15, 2020

Category: Pollution
Posted by: Kathryn

Sewage pollution

Above: Discoloured water polluted by sewage photographed on Wednesday 15th January 2020

We were informed on the morning of the 15th January by Thames Water that their Chesham Sewage Treatment Work was discharging storm sewage into the Chess.

At the present time, we have no further information regarding how long the discharge took place for or the volume of sewage released into the water.

If you are planning to access the river for work, study or recreation in the near future, we would recommend postponing this.

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