PAS 128 Cat A – Verification Surveys (Trial Holes)

Utilities are observed at an inspection chamber, or exposed through excavation, such as a trial hole/trench.

Verification Surveys are typically carried out after Category B – Detection Verification Surveys has been carried out. There are several applications for which Verification Surveys can be used for:

– Unidentified Utility Service Identification
– Targeted Utility Service Verification
– Confirmation of record searches

All of the trial hole/trench excavations that Subscan UDS carry out, are carried out by fully competent, fully trained and industry approved members of staff.

The excavations will be re-instated to the same condition as they were found in, no matter the surface/ground type.

Category A Surveys can be utilised for the following and more:

  • Confirmation of Unidentified traces located on the initial Category B Survey
  • Confirmations of the initial Category B Surveys in Critical areas
  • Establishment of the size and material of certain services

Cost Effective

At Subscan we ensure that we price each and every survey/job precisely and efficiently to ensure that the client/customer receives the most cost effective survey that they require for that particular project/job.

Integrated Survey Specialists

Working in conjunction with our Drainage and Survey departments, Subscan are able to provide an integrated survey solution that is unique in the market place. Our extensive survey offering means that many of our clients save time and money when appointing us to their project due to the efficiencies achieved from appointing only one contractor.

Case Study

Client:
Wessex Water

Project type:
Underground utilities and topographical survey

Location:
Taunton, Somerset

Overview

Subscan were appointed by Wessex Water to carry out a full underground utilities and topographical survey to areas within Hinkley Nuclear Power Station and collate all information into one document.

Subscan were appointed by Wessex Water to carry out a full underground utilities and topographical survey to areas within Hinkley Nuclear Power Station.

This is an ongoing project due for completion on site Christmas 2018 and will be produced in a complete CAD DWG format with relevant PDFs. All high resolution photos from site and written day to day survey reports will be collated into one document by our surveyors and presented to the client on completion.

Client Testimonial

“The Subscan UDS team of surveyors and drainage engineers helped our minor works team out again and did a thoroughly professional job. We will continue to work with Subscan on LNE projects throughout the region.”

Lee Sanderson, Building & Civils Project Manager, Construction Marine Ltd