Thames Water received a chemical discharge into their pumping station late on Wednesday 15th January which has impacted both Camberley and Sandhurst sewage treatment works (STW). The chemical discharge reduced the ability for the STW to effectively process their effluent. The resulting effluent that was discharged into the River Blackwater was high in ammonium. Both STW are now recovering. Environment Officers are out on site monitoring the impact on the River Blackwater. There are currently no reports of dead fish.

The Environment Agency number to report any further details is 0800 807060