HS2 Works update Notification: Water monitoring borehole works at Chalfont St Peter vent shaft

We’re writing to let you know about some planned works that we will be carrying out in your area.

Works taking place

We will be carrying out borehole drilling in the field behind our Chalfont St Peter vent shaft on Chesham Lane on 18 October 8am to 6pm for four weeks. We may also be on site for one hour’s start up and shut down outside of those times. A small number of vehicles entering and leaving the site each day, these are 4×4 type vehicles there will be no HGVs used for these works. There may be some low noise from the drilling rig used to create the borehole.

You can view the works notification, including a map, here


We’re committed to keeping you informed about the planning and delivery of the railway in your area with regular updates on progress.



If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email hs2enquiries@hs2.org.uk.