The engagement of this project has ended
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Please note that we have updated the Ground Investigation tile in the ‘Find out more’ section of HS2inHillingdon.
This change provides an update on the progress of Ground Investigation works in the London Borough of Hillingdon and the standpipe development and monitoring that we will be conducting in 2018. Further information is provided in the following letter , sent to residents in proximity to boreholes effected by these works.