Specialists in New Zealand ground investigation reporting and in-situ geotechnical tests

RDCL answer your questions on how the ground may shake, rattle and roll. Don't gamble with the ground: talk to us first.

Our team of professional geologists, geophysicists and geotechnical engineers provide these answers through a range of above and below-ground investigative testing techniques and seismic surveying.

Whether through in-situ cone penetrometer testing (CPT drilling) or surface geophysics, we provide data to de-risk our clients projects so they don't gamble with the ground.


Unforeseen ground conditions can often plague development projects and applying some sound geotechnical engineering at the beginning can save you time and money in the end. For that reason, our team of experienced geotech consultants follow proven cone penetration test procedures and standards for other in situ geotechnical tests to ensure you get accurate results.

Our key capabilities fall broadly into four areas: