Corrosion Management group:

Case Study

EEMUA 159 Out-of-Service Inspection: Uniper Raw Water Tank

First EEMUA 159 inspection of a 6.6 million litre fire water tank during a short outage, with repairs to keep it compliant and in service until its 2027 reline.

Large raw water storage tank at the Uniper site with scaffold access
Tank capacity
6,597,000 L
Programme
3 weeks
Standard
EEMUA 159

The Challenge

  • Complete out-of-service inspection to EEMUA 159 on a 6,597,000 L tank that is critical to site operations, providing water for emergency firefighting in the event of a fire.
  • A full refurbishment is due in 2027, so the works had to include repairs that would ensure integrity while getting the asset back into service as soon as possible.
  • Waste removal and surface preparation were required before the inspection.

Our Solution

  • The goal during the short outage window was to complete the asset's first EEMUA 159 inspection and recommend repairs to get the tank through a 12-month service ahead of a full reline in 2027.
  • With full access to the tank's shell and base, specialist inspection equipment detected multiple areas of failure through the lining.
  • The necessary patch plate and coating repairs were carried out to return the asset to service.
  • A risk-based inspection was completed with a reduced sign-off window, keeping the asset compliant, the site operational and the next outage properly planned.
Corrosion Management Ltd
01626 886771 · info@corrosionmanagement.co.uk
cm-projects.co.uk/case-studies/uniper-raw-water-tank-eemua-159

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