Accredited utility locating, engineering-grade survey, non-destructive excavation and concrete scanning. A complete, verified picture of what lies below ground.
From a single locate for a local contractor through to the largest infrastructure programs across New South Wales, the same accredited crew and the same AS 5488-2022 data.
LCG is a professional surveying and subsurface utility investigation consultancy and an accredited provider for Transport for NSW and Sydney Water. Our SUI service combines accredited locating with engineering-grade survey and drafting to reduce risk, protect critical assets and support confident design and construction decisions.
Locating, survey, drafting and reporting delivered in-house and classified to AS 5488-2022.
Detection, tracing and marking of underground services using electromagnetic and ground-penetrating radar, to the accuracy each site demands.
Engineering-grade utility survey and drafting to AS 5488-2022, delivering 12D/DWG models, BIM-ready 3D strings and GDA2020 deliverables.
Safe vacuum potholing to positively identify services and achieve the highest Quality Level (QL-A), without damaging the asset.
GPR concrete imaging before cutting, coring or drilling. Locates rebar, post-tension cables, conduits and voids. Radiation-free, no site shutdown.
Push-rod and crawler camera inspection, connectivity mapping and condition reporting for pipes up to 2 m in diameter.
USTs, concrete substructures, voids and rock seams, plus unmarked-grave, forensic and archaeological investigations.
A simple three-step process, backed by desktop research and Before You Dig Australia enquiries, all classified and reported to AS 5488-2022.
Tell us the site and scope. Same-day quotes, and we mobilise fast, including 24/7 for day and night emergency call-outs.
Accredited crew on site with EM, GPR and non-destructive excavation. Every service located, marked and captured to AS 5488-2022.
Full documentation: CAD mapping and 12D modelling, DWG/DXF, georeferenced data and quality-level classification your team can build on.
From design and pre-construction utility clearance to damage prevention on complex, congested sites.



Talk to the LCG Subsurface Utility Investigation team about your site, program and deliverables.