Critical Fuel Systems Testing
Our holistic testing program helps you meet regulatory demands, reduce risk and lower costs.
To protect your assets, reduce risk and ensure compliance, you need a testing program aimed at long-term viability. We look at your entire fuel tank management system and provide testing services that meet your specific operational and compliance needs. Our team:
- Creates efficient testing schedules aimed at meeting compliance objectives
- Tailors testing plans to the entity's specific needs
- Serves as a consulting partner and stays with clients through issue resolution
- Is highly certified, allowing us to be nimble and highly responsive. Some of our certifications include:
- (PEI) RP 1200
- STI SP001
- API 651
- NACE
“They understand our underground tanks, monitoring systems and alarms deeply. In one case, they quickly determined an alarm was a sensor issue—not a leak, which avoided panic and unnecessary escalation.”
“Our system is extremely complicated, and they took the time to really understand it. They deal with issues that aren’t common—and it takes real hands-on knowledge to solve them.”
“They don’t oversell. They make recommendations, but they don’t push unnecessary work. There are no surprise change orders or hidden costs.”
Automatic Tank Gauge Testing
If you have above and underground fuel storage tanks, you may also have an Automatic Tank Gauge (ATG) to reduce environmental risk and meet regulatory requirements. Our experienced and certified fuel technicians manage tests on a range of equipment manufacturers, such as Veeder Root, Pneumercator, OMNTEC, INCON, and many others.
Some of the largest telecommunications companies in the country, hospitals and data center operators select OCCU-TEC as their vendor of choice for Automatic Tank Gauge (ATG) testing.
Piping Sump and Spill Bucket Testing
We help clients manage their Underground Storage Tank (UST) system piping sumps and fill port spill buckets to meet state UST compliance and EPA regulations – as well as to identify potential leaks or problems. OCCU-TEC’s PEI RP1200-certified fuel technicians will protect clients against costly releases and compliance violations.
Overfill Prevention Equipment Testing
Overfill prevention systems can be complex, whether it’s an automatic shut-off valve, an exterior overfill alarm or a ball-float valve. Our PEI RP1200-certified technicians help clients mitigate risk by ensuring their equipment is working properly, preventing spills, overfills and reducing environmental contamination.
Ultrasonic Testing/Non-destructive Testing
Piping and fuel tank replacement includes a costly, time-consuming process. But ignoring corroding equipment is even more expensive, with potentially damaging consequences. We use ultrasonic testing to help clients determine the life of their equipment so they can plan accordingly. Routine testing can be a cost-effective way to manage your assets. It can establish your corrosion rate, determine if the tank has adequate steel for continued service and identify whether you need a full fuel tank replacement or if a coating restoration will be sufficient to extend the life of your critical fuel systems.
Line and Tank Tightness Testing
OCCU-TEC’s network of third-party certified testers makes sure your tank and fuel lines meet all regulatory requirements. A leak in your tank or fuel lines can disrupt continuity, making line and tank tightness crucial to your system’s readiness.
OCCU-TEC testers help your team manage whatever requirements they face, from state regulations to EPA mandates. We have extensive experience working with mission-critical facilities, from hospitals to data centers, delivering cost-effective solutions that meet your regulatory requirements.
Fuel Testing
If fuel isn’t used, which happens often with emergency backup generators, it grows stagnant and can break down in as little as 12 months.
Our team conducts regular generator fuel testing, checking backup fuel supplies for degradation and puts a preventative maintenance schedule in place to ensure your business is never disrupted because of a degraded fuel supply.
Our standard fuel quality testing methods include, but are not limited to:
- Water by Karl Fischer - ASTM D-6304
- Water and Sediment - ASTM D2709
- Particulate Count - ASTM D7647
- ISO Cleanliness - ISO 4406
- API Gravity - ASTM D-1298
- Distillation - ASTM D-86
- Cetane Index - ASTM D-976
- Micro-Organisms - ASTM D6469
- Cloud Point – ASTM D7689
- Cold Filter Plug Point – ASTM D6371
Corrosion Protection Testing
At OCCU-TEC, we have a third-party network of technicians certified by the National Association of Corrosion Engineers (NACE) to assess the corrosion system stability on your tanks and piping well before symptoms ever occur.
Our corrosion protection (CP) testing includes visual inspections and CP viability surveys inside and outside the fuel storage tank and piping. Our experienced technicians are highly trained to identify telltale signs of common or hidden issues such as anode failure, wiring problems and rectifier issues, so you can mitigate risk quickly and ensure you meet compliance demands. Working with a third party allows us to tailor plans to meet your needs, delivering sustainable and cost-effective solutions on a nationwide scale.
Testing is a critical component to keeping your emergency systems up and running. Contact our team to learn how we can help you remain compliant and prepared for a power outage.
Testing FAQs
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Why is critical fuel systems testing important?
Testing verifies that fuel systems will perform under real conditions, not just on paper. It’s one of the most effective ways to prevent unexpected failures.
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How often should critical fuel systems be tested?
Testing frequency depends on regulatory requirements, system type, and risk profile. OCCU‑TEC helps determine an appropriate schedule based on your facility’s needs.
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What types of testing does OCCU‑TEC perform?
We provide fuel system operational testing, compliance testing, generator fuel quality testing and performance verification aligned with your compliance and reliability goals.
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Will testing disrupt facility operations?
Testing is planned carefully to minimize disruption. When impacts are unavoidable, we coordinate closely with facility teams to manage timing and expectations. If prolonged downtime is expected, fuel or generator continuity plans are added to the project.
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What happens if testing uncovers an issue?
We clearly explain findings, outline next steps and help prioritize solutions based on risk and/or cost—without pushing unnecessary work.
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Does testing support inspections and compliance?
Yes. Proper testing documentation and results often support fuel system inspections and demonstrate proactive system management to regulators.
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What should I expect the life span to be for a new fuel system?
A new fuel system’s life span depends on design, environment, usage, fuel quality, and how well it’s maintained. With proper inspection, testing, and preventative maintenance planning, many components can provide reliable service for decades, but no system should be treated as “install and forget.”
Protecting People, Places and Performance
We help keep employees safe, the environment clean, and bottom lines healthy
