Investigate and map buried utilities before intrusive work. We agree the detection methods, PAS 128 scope and reporting level required for safer excavation planning and design.
An underground utility survey investigates likely buried service routes, such as gas, water and electricity, within an agreed scope and reporting level.
The methodology can include records review, visual inspection and appropriate geophysical detection. Findings depend on access, ground conditions, service materials and the methods specified.
Surveyed findings and limitations are recorded in the agreed drawings and report so the project team can plan intrusive work with a clearer account of remaining uncertainty.
We agree the methodology, survey coverage and reporting level before work begins. Detected and inferred routes are distinguished in the issued information.
Where specialist utility detection is required, its methods, survey control and interpretation are coordinated within the agreed project scope. The drawings record the findings and their limitations.
Agree the PAS 128 survey scope, detection methods and reporting requirements before records review, fieldwork and delivery.
We review statutory utility records to build an initial site picture.
On-site detection using GPR and EML to locate buried services.
Detected routes are marked and topographically surveyed.
Final CAD drawing and report delivered with PAS 128 classifications.
The UK specification for underground utility detection, setting standards for survey quality and methodology.
No. Detection depends on service type, depth, ground conditions and access. The survey reports the methods, findings and remaining limitations.
There is no universal detection depth. We assess suitable methods and explain site-specific limitations in the scope and report.