Underground Utility Detection
An underground utility survey is a vital part of any construction project. Really understanding what is below ground throughout the project lifecycle can deliver significant benefits. Whether it is better design, enhanced health and safety performance or greater project assurance; having accurate underground utility data can optimise project delivery. Catsurveys is an industry leading provider of underground utility surveys and is at the forefront of the development of standards and best practice in the surveying industry.
PAS 128 - Survey Quality Types
PAS 128 is the latest specification that sets the standards for underground utility detection, verification and location. PAS 128 creates a common environment for both the client and contractor to specify, survey and deliver data. Catsurveys provides all PAS 128 quality level surveys.
QL-D
Desktop Utility Records Search
A desktop search of utility providers records provides the starting point for all underground utility detection. Catsurveys has a simple online ordering platform that makes desktop utility records searches easy to order and manage.
QL-C
Site Reconnaissance
Before beginning an underground utility detection survey, our team will walk the site and visually identify evidence of utility locations to increase the accuracy of the desktop records.
QL-B
Detection
Detection of underground utilities relies on the use of range of different techniques to verify utility location. This includes both Ground Penetrating Radar and EML detection which are methods of non-invasive underground utility detection.
QL-A
Verification
The physical verification of underground utilities begins with manhole reporting and verification of all manholes that could affect the specified area. In certain circumstances it can require excavation to uncover utilities to confirm location.
How is an Underground Utility Detection Carried Out?
All of our utility surveyors use the most up to date precision locators and Ground Penetrating Radar available. Using different methods we can locate/detect metallic pipes and cables. With the addition if various attachments and accessories, we can locate drains, sewers and empty ducts. With all methods and accessories we can give reliable horizontal and vertical locations.