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About Us

Constructive Evaluation has a team of experienced Geo-Environmental specialists, able to provide full Contaminated Land assessments or soil screening as necessary to fulfil the requirements of construction projects and to satisfy the planning process.

Archway Mini-Tracked Lightweight Rig


Constructive Evaluation's in-house Archway Mini-Tracked Lightweight Rig back when it was new! One of our engineers was lucky enough to have the opportunity to use this on its first day. The tracked rig allows us to complete dynamic (windowless sample) boreholes to a typical depth in the order 5.00-6.00m below ground level, navigating uneven terrain to achieve this. In addition, the rig has the capability to undertake SPT/CPT and dynamic probe testing for geotechnical design. As this site pictured was found to be situated over reclaimed land / fill material, it was deemed necessary by the Engineer to install monitoring wells (standpipes) for future ground gas, soil vapour and groundwater monitoring. Monitoring wells can be installed within dynamic (windowless sample) boreholes using a combination of slotted and plain pipe.

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