from HS2

The water treatment plant removal works are now ongoing until 28 February 2026. Works have been extended to accommodate access for other works.

These works will be 24/7 due to site constraints and the safety of the workforce. There will be lorry movements to remove the equipment during the day only. We will be emptying the treatment plant used to store water for our tunnel boring machines as it is no longer required. We will do this by using a hose connection into a silt buster system. Once emptied, we will disconnect and disassemble the plant and then remove from site during the day.

You may notice crane movements to lift the equipment for the water treatment plant and disassembly. Due to constraints on site some crane lifting may happen overnight. You may notice lights on site during nights, but we will position lights to avoid shining directly onto nearby properties. You may also hear white noise alarms during the day to ensure safety on site during the transportation of equipment. We will continue to monitor our working methods and noise levels to reduce disruption.
more info

https://assets.hs2.org.uk/wp-content/uploads/2026/01/HS2-SCS-25-1586-Update-to-247-working-to-remove-water-treatment-plant-at-West-Ruislip-Portal-Hillingdon_-February.pdf