Installation Testing

Ensure a perfectly tight fuel system from day one

Certified, accurate integrity testing at the pre-bury and post-bury stage for new site installations

Why do pre and post-bury UST testing?

Fuel site owners and operators are required to do a UST tightness test prior to commissioning new sites as per EPA regulations.

Unfortunately, 90% of new or remodelled sites that pass a gauge pressure test have an installation issue such as water ingress and small leaks from pipes, fittings and vents. If left undetected it can mean cutting up concrete, excavation, repair and possible remediation to fix a leaking installation.

UST installation testing at both the pre-bury and post-bury stages ensure you’re putting a 100% tight fuel system into the ground, protecting your multi-million dollar investment from the get-go.

Don’t bury installation issues

Traditional testing technology doesn’t detect leaks smaller than 1.59 gallons per hour, or 13,900 gallons per year – in or out of the tank.

Our EPA-certified pre and post-bury test can detect ullage leaks equivalent to 0.025 gallons per hour (gph) – 400 per cent more accurate than current USA leak detection thresholds.

Never bury an installation issue with the world’s most accurate test.

See our certification

Reduce the TCO of your fuel systems

With today’s ultra-low sulfur diesel fuels, USTs need to be as tight as possible to prevent water ingress that causes major headaches like biological activity, accelerated corrosion and contaminated product unfit for sale.

There’s a clear correlation between ullage and fitting issues and fuel contamination in the underground tank.

Perfectly tight storage systems through pre-bury and post-bury testing have the lowest operating cost, the best environmental and safety outcomes over the 30-year life of the asset.

It can potentially save hundreds of thousands of dollars in maintenance programs and reduce the Total Cost of Ownership (TCO) of your UST investment.

Get in touch

2-stage process


Independent third party precision testing of the tank and lines is carried out to detect leaks and make repairs to the system before back fill and concrete is poured. The test is conducted for a minimum of 18 minutes and collects a large amount of data, providing a rolling view of the actual leak threshold.


Certified testing of the final fuel system is conducted before the first fuel delivery into the tank, confirming UST integrity to 0.025 gph or less. Concrete is only poured when the system is perfect. The UST is tested again after concrete to confirm no disturbance on integrity.

Fuel site installation
Installation testing video

Related solutions

Tank & line integrity testing

For existing fuel sites our precision tank and line integrity technology provides fast, accurate leak detection testing with digitally verified results.

Learn more
Compliance Plus

For complete testing of lines, containment sumps and leak detectors, Compliance Plus is a single-source digital testing platform that increases site uptime, lowers leak risk and ensures digitally verified compliance with all EPA regulations.

Learn more

Latest News & Insights

  • 06.10.2021
  • Compliance Plus
Download the Dri-sump & Bravo flyer
Read more
Leighton O'Brien website launch
  • 05.10.2021
Leighton O’Brien launches new website: A hub for forecourt intelligence
Read more
Bravo logo
  • 01.10.2021
  • Compliance Plus
S. Bravo Systems, Inc. & Leighton O’Brien Launch the First Dri-sump Test-Ready Sump
Read more
Angela Wisdom
  • 15.09.2021
Staff spotlight series: Angela Wisdom
Read more
Hayden Noone from Leighton O'Brien at the PEI show in 2018
  • 08.09.2021
  • Wetstock Live, Fuel Replenishment, AMS, SIR, iHUB
Digital, integrated forecourt AI: Leighton O’Brien to launch new iHUB platform at NACS/PEI show 2021
Read more
  • 07.09.2021
  • Wetstock Live, Fuel Replenishment, AMS, SIR, iHUB
Download the iHUB flyer
Read more