Utility Survey to AS 5488.1:2022

Subsurface utility information to a national standard

Scope Mapping provides utility surveying and subsurface utility information in accordance with the principles of AS 5488.1:2022, Classification of Subsurface Utility Information. The standard gives a nationally recognised framework for classifying underground utility information by its location, position and attribute information, so a project team can understand how reliable the data in front of them actually is.

Quality levels

We identify and document underground services across the AS 5488 quality levels. QL-A provides the highest level of verification, through positive identification and direct measurement of an exposed service.

• QL-D, existing records and available information
• QL-C, surface features and visible evidence
• QL-B, services detected and traced using locating technology
• QL-A, services physically exposed and surveyed in three dimensions

Why utility surveying matters

Reliable underground service information reduces the risk of utility strikes, avoids costly redesign, improves construction planning and gives greater confidence before excavation begins. Whether the job is subdivision works, civil construction, roadworks, drainage, an infrastructure upgrade or detailed design, we can provide clear survey-grade information on what is beneath it.