Subsurface Utility Engineering

Subsurface Utility Engineering (SUE) per ASCE 38 defines four quality levels of subsurface information. Quality Level B (designating with surface geophysics) and Quality Level A (locating with controlled potholing) are the workhorses of design-phase utility verification. We deliver Quality Level B/A subsurface utility engineering for design teams, with deliverables structured to industry standards and integrated into engineering submissions.

Who this service is for

• Commercial
• Government

Why Pipe Mapping for subsurface utility engineering

Pipe Mapping is a sub-division of Leak.ca, the Greater Vancouver leak detection company trusted since 1999. Every site visit is delivered by certified technicians using calibrated equipment, with documented findings formatted for insurance, engineering and procurement use.

We don't sell remediation. Our role is independent detection and assessment — the data you and your professional team work from.

Pairs well with

Clients booking subsurface utility engineering often combine it with Private Utility Locating or Utility Mapping & As-Builts — particularly when the underlying issue spans multiple systems or when documentation needs to support a broader investigation.

How to prepare for your visit

1. Document what you're seeing. Photos, dates, sounds, water-bill changes, anything unusual. The more we know in advance, the faster we can locate.
2. Clear access to the suspected area. Move furniture, stored items, and rugs. Non-invasive methods still need clear sightlines.
3. Have system history ready. Recent plumbing work, prior leaks, renovations, age of property, prior insurance claims.
4. Confirm the email for your report. Photo-linked report delivered within 48 hours (often same-day for residential).