Site investigation specialist Topdrill has completed the installation of groundwater monitoring wells at a difficult site in Aberdeenshire.
It used a modular window sample drilling rig to install 17 of the wells at a steep, unstable site above Stonehaven harbour.
The location has a long history of slope instability and the groundwater monitoring wells are the latest stage of an ongoing site investigation carried out for Aberdeenshire Council under the supervision of Glasgow-based Jacobs Geotechnical.
As a result of using this rig, the Topdrill team could work on the steep gradient without causing any further disturbance to the slope.
The Topdrill team then cased the holes − necessary because of the variable groundwater conditions beneath the slope.
It also enabled the provision of installations to monitor specific horizons in the mid-slope section.
The rig can be assembled without lifting equipment and this allowed the team to carry it to specific locations on the slope and reassemble it.
Site investigation spotlight: Groundwater monitoring, Aberdeen