A GPRS Case Study

GPRS Ensures Safe Excavation of Leaking Utility Line

GPRS Ensures Safe Excavation of Leaking Utility Line

Highlights

THE BOTTOM LINE

GPRS provided accurate data on the utilities inside a buried pipe that had been used as a utility tunnel at a power substation to assist with the repair of an unknown leaking utility.

INDUSTRY

SERVICE

LOCATION

PM Insight

Deliverables

PROJECT APPLICATION

ASK

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Task

Locate all utilities in and around a buried concrete or asbestos pipe, and investigate a possible void near these lines, to assist with the safe repair of a leaking utility.

PROBLEM

  • A petroleum and natural gas electrical power station had a suspected leaking utility line that they believed was also causing a void
  • The leaking utility was encased in a concrete or asbestos pipe, which also contained several other utilities that had all been buried for over 40 years
  • There was no way to access this utility pipe, which sits under a newer steel building on the property

Solution

  • GPRS deployed ground penetrating radar and electromagnetic locating to map the utilities in and around the buried pipe
  • The Project Manager also identified the likely location of the leaking utility, which aligned with data the client acquired with a thermal imaging gun
  • GPRS went beyond the original project scope and located expansion joints along the buried utility tunnel
  • In addition to marking out located utilities with spray paint on the asphalt, the data was uploaded into SiteMap®

Benefits

  • The client was able to avoid destructive and potentially dangerous exploratory potholing to find the leaking utility line
  • The accurate, actionable data obtained by GPRS will expedite the repair process by ensuring they only need to dig once
  • All stakeholders have 24/7, secure access to this field-verified data thanks to SiteMap®, which is available via computer, tablet, or smartphone

CASE STUDY GALLERY

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“Our team was more effective and efficient because of SiteMap, allowing us to provide better results from more informed decision-making.”
Alexander Valigosky
Project Environmental Scientist