The UK's leading Underground Utility Mapping and CCTV Drainage surveying company, providing full UK coverage in a wide range of services aimed at the detection and avoidance of underground utilities.
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Trial Holes

Trial Holes / Slit Trenches

What is a Trial Hole?

A trial pit is an excavation of ground in order to study or sample the composition and structure of the subsurface, usually dug during a site investigation, a soil survey or a geological survey. Trial pits are dug before the construction.

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