Eco Tank Services

Underground Fuel Storage Tanks: Maintenance and Potential Issues

Underground Fuel Storage Tanks: Maintenance and Potential Issues

Underground Fuel Storage Tanks (USTs) are critical components for fuel storage in both commercial and residential settings. However, due to their concealed positioning and constant exposure to moisture, shifting soil, and temperature fluctuations, they are inherently more susceptible to corrosion, leaks, and environmental hazards. At Eco Tank Services, we specialize in professional UST maintenance, removal, and installation, helping clients across the UK extend the life of their tanks and stay compliant with all environmental regulations.

Why Regular UST Maintenance Is Crucial

Regular inspections and preventative maintenance are essential to ensure:

  • Environmental safety and pollution prevention
  • Continued fuel quality and storage efficiency
  • Regulatory compliance with UK environmental standards
  • Avoidance of costly tank replacements or soil remediation

Ignoring maintenance can result in fuel leakage, ground contamination, and potential legal liabilities. That’s why Eco Tank Services offers scheduled UST servicing packages tailored to your specific tank type, size, and location.

Step-by-Step Inspection and Testing Procedures

To accurately assess the condition of an underground fuel tank, the following procedures are recommended as industry standard — and are part of Eco Tank Services’ comprehensive inspection process:

1.⁠ ⁠Visual Inspection

We start with a full external visual inspection of access hatches, manways, and exposed pipework. Our technicians look for signs of corrosion, fuel staining, and mechanical damage.

2.⁠ ⁠Internal Tank Cleaning and Inspection

Once the tank is safely emptied and gas-freed, we perform a detailed internal inspection. This step allows us to visually evaluate the interior walls, weld seams, and base for corrosion, sediment build-up, or coating deterioration.

3.⁠ ⁠Pressure Testing

Eco Tank Services conducts precision pressure testing on both the storage tank and connected pipework. This ensures there are no fuel losses from hidden cracks, faulty seals, or corroded joints.

4.⁠ ⁠Ultrasonic Testing

Using ultrasonic equipment, we measure the wall thickness and detect rust or metal thinning in inaccessible areas. This non-invasive method is vital for detecting structural weakness before it becomes critical.

5.⁠ ⁠Tank Lining

If internal degradation is detected, we can apply a protective liner to the tank interior. This process significantly extends the tank’s life, boosts corrosion resistance, and reduces the risk of future contamination.

6.⁠ ⁠Ground and Soil Testing

Our team performs ground testing and soil sampling to check for signs of fuel seepage. If contamination is detected, Eco Tank Services can undertake full soil remediation or advise on safe tank removal and replacement.

Advanced Monitoring Solutions

Modern tanks are increasingly fitted with electronic monitoring systems — including leak sensors, level monitors, and bund alarms. While these systems offer valuable real-time insights, Eco Tank Services emphasizes that nothing replaces hands-on inspection and physical testing when determining tank integrity.

Internal Lining: A Legal and Environmental Solution

Should testing reveal structural weakness or minor leaks, internal tank lining is often the only legal option to prolong the tank’s lifespan without full replacement. Though a more significant investment upfront, lining offers:

  • Regulatory compliance
  • A secure barrier against corrosion
  • Extended tank lifespan
  • Peace of mind for property owners and businesses

Why Choose Eco Tank Services?

At Eco Tank Services, we are proud to offer a nationwide service across Northampton, London, Birmingham, and the rest of the UK. Our team is certified and experienced in:

  • Underground and above-ground tank removal
  • Fuel tank decommissioning
  • Fuel filtration and transfer
  • New tank installations
  • Emergency spill response and site clearance

We use the latest tools, non-invasive diagnostics, and fully compliant testing protocols to provide safe, cost-effective fuel storage solutions. 

If you’re considering installing a new heating oil tank or need to service your existing system, contact an OFTEC-registered professional today to ensure your home’s heating system is in the best hand.

Get in touch with Eco Tank Services for a free no obligation quotation on 0800 2922 020 or info@ecotankservices.co.uk

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