Capabilities +
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Capability · See What Lies Beneath

Subsurface Utility Investigation.

Accredited utility locating, engineering-grade survey, non-destructive excavation and concrete scanning. A complete, verified picture of what lies below ground.

Transport for NSW Accredited
Sydney Water Accredited
CERTLOC Certified
AS 5488-2022 (QL-A to QL-D)
24/7 Emergency Call-Outs

No job too small. No project too large.

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.

Small contractors Major infrastructure

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.

Our SUI Capabilities

Six capabilities, one verified picture.

Locating, survey, drafting and reporting delivered in-house and classified to AS 5488-2022.

01 · Locate

Utility Locating (EM & GPR)

Detection, tracing and marking of underground services using electromagnetic and ground-penetrating radar, to the accuracy each site demands.

EM · GPR · QL-A to QL-D Learn more →
02 · Survey

Utility Survey & Mapping

Engineering-grade utility survey and drafting to AS 5488-2022, delivering 12D/DWG models, BIM-ready 3D strings and GDA2020 deliverables.

12D · DWG · GDA2020 · BIM Learn more →
03 · Verify

Non-Destructive Excavation

Safe vacuum potholing to positively identify services and achieve the highest Quality Level (QL-A), without damaging the asset.

Vacuum potholing · QL-A Learn more →
04 · Scan

Concrete Scanning & Inspection

GPR concrete imaging before cutting, coring or drilling. Locates rebar, post-tension cables, conduits and voids. Radiation-free, no site shutdown.

GPR · radiation-free Learn more →
05 · Inspect

CCTV & Drainage Investigation

Push-rod and crawler camera inspection, connectivity mapping and condition reporting for pipes up to 2 m in diameter.

Push-rod · crawler · to 2m dia Learn more →
06 · Report

Additional Subsurface Reporting

USTs, concrete substructures, voids and rock seams, plus unmarked-grave, forensic and archaeological investigations.

USTs · voids · forensic Learn more →
Design & pre-construction utility clearance
How it works

Book. Locate. Deliver.

A simple three-step process, backed by desktop research and Before You Dig Australia enquiries, all classified and reported to AS 5488-2022.

01

Book

Tell us the site and scope. Same-day quotes, and we mobilise fast, including 24/7 for day and night emergency call-outs.

Same-day quotes
02

Locate

Accredited crew on site with EM, GPR and non-destructive excavation. Every service located, marked and captured to AS 5488-2022.

On-site delivery
03

Deliver

Full documentation: CAD mapping and 12D modelling, DWG/DXF, georeferenced data and quality-level classification your team can build on.

CAD & 12D formats
Where We Add Value

Trusted across New South Wales' largest programs.

From design and pre-construction utility clearance to damage prevention on complex, congested sites.

Ready to de-risk your next project?

Talk to our SUI team.

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

Talk to our SUI team Call 1300 032 730