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Quality Levels set out the accuracy to which the survey data is captured for specific purposes, the quality expected of that data and a means by which to assess and indicate the confidence that can be placed in that data.
PAS 128 compliant utility survey will consist of many underground utilities and it is possible that all of the Survey Category Types will be featured in some way.
A particular single utility may have several QL designations along its route depending on whether it has been exposed (verified), successfully detected or taken from utility records at a particular section along its length.
The complete package in line with the PAS128:2022 specification.
SVS have always prided themselves on going the extra mile when it comes to utility mapping.