We keep your site compliant — and your file ready for an inspector.
California, Arizona, and Nevada all require trained Designated Operators on UST sites. GTI provides certified DO service, monthly inspections, documentation, and corrective follow-up so an inspector visit is a non-event.
Compliance built right the first time. Documented every time.
Every state has rules for who has to inspect what on a UST site, how often, and what gets logged. The rules are not optional and the fines for missing them are real. GTI's Designated Operator service is built around one principle: when an inspector shows up, your file is ready.
We're certified DOs in California (SWRCB ICC), Arizona (ADEQ), and Nevada (NDEP). Monthly visits, full visual inspections, leak detection verification, spill bucket and overfill checks, and a digital file that's audit-ready 365 days a year.
Certified in all three states we serve
Straightforward process, start to finish.
Site enrollment
We onboard your site, pull your existing records, and flag anything that needs immediate correction.
Monthly inspection cycle
Our DO visits monthly, runs the inspection checklist, photographs deficiencies, and updates your digital file.
Annual + audit-ready
Annual line and tank testing scheduled and coordinated. When an inspector arrives, your file is current and complete.
What the work actually looks like.
Most operators ask about these.
We track every regulatory deadline in CA, AZ, and NV and adjust the inspection scope automatically. New rules are baked into the service.
Get your site under DO coverage.
First-month inspection and file audit included when you enroll a site.
Most operators bundle this with these.
Loyalty & Maintenance Program
Free phone support, priority dispatch, 15–20% off the whole invoice. From $8.18 a day.
Pump Service & Repair
Manufacturer-certified on Gilbarco and Wayne. In-warranty and out-of-warranty.
Construction & Tank Installation
Turnkey AST and UST installation. New builds, conversions, upgrades.