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PAS128 Utility Surveys

Setting the Standard with PAS128 Utility Surveys
Amethyst Surveys have been providing high-quality, compliant PAS128 Utility Surveys since its introduction in 2014.

PAS128: Specification for underground utility detection, verification and location was published by the British Standards Institution (BSI), with the aim of providing greater confidence with the results and accuracy of utility mapping surveys. The standard outlines the precise methodologies on how a utility survey should be undertaken, and the level of results that need to be issued within the report.
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Survey Types

The standard lists different types of survey that can be requested to tailor the exact requirements for a specific project. The PAS128 survey types are:

  • PAS 128 Survey Category Type D: 'Desktop Utility Records Search’ to identify known utility owners within the survey area. This information is collated into one document and issued as a digital report.
  • PAS 128 Survey Category Type C: ‘Site Reconnaissance’ Obtain information for Type D then undertake a site visit to check the record information against existing site features such as manhole covers, inspection covers, lighting columns, valve pits, electric poles, telegraph poles and service trench scars, then issue within an annotated plan or report.
  • PAS 128 Survey Category Type B: ‘Detection’ Obtain information for Type D or Type C, then undertake a full on-site detection survey of all underground utilities, using Electromagnetic (EML) and Ground Penetrating Radar (GPR) techniques and methodologies. Please note that a particular detection level needs to be agreed on prior to this type of survey. For more detail regarding the detection methods, please get in touch.
  • PAS 128 Survey Category Type A: ‘Verification’ Obtain deliverables for Type D, and where available, Type C and/or Type B. Agree with the client where excavation can take place to verify the exact locations of underground services.
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PAS128 Support

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Amethyst Surveys have a vast amount of experience with all types of PAS128 Utility Surveys. At Amethyst, we take pride in the quality of survey work we produce, and the level of customer service that we provide. With any written standard, they can be a little confusing at times, so our expert team are ready to discuss your project and any specific PAS128 requirements today.

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PAS128 Utility Surveys
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