Utility Surveys

Utility Surveys will be carried out in accordance with PAS 128:2014 specification for underground utility detection, verification and location published by BSI.

Survey Types:

Type D: Desktop utility records search

A report identifying all known utility owners and their assets within an area including a list of affected and non-affected providers, long with plans, maps and diagrams provided.

Type C: Site Reconnaissance

Accompanied by a desktop report (type D) – it will involve a site reconnaissance visit to identify features that may indicate the presence of a service such as manholes, valves, utility markers, street furniture and excavation scars.  The deliverable will be in the form of records overlaid onto existing survey or OS base plans.

Type B: Detection

Accompanied by a desktop utility report (type D). This survey is a non-penetrative survey conducted using geophysical techniques such as electromagnetic detection and Ground Penetrating Radar (GPR).  Deliverables will be in the form of an AutoCAD file accompanied by a written report and photographic record.

Type A: Verification

This survey can improve the confidence level of service location and types by actual visual inspection via access points such as manholes or by excavation ad exposure.