Underground and aboveground petroleum testing under EPA 40 CFR Part 280. Manufacturer certified, audit-ready since 1997.
The pressurized-system tests that anchor every UST compliance program.
Tank tightness · Line tightness · Leak detector
The functional and pinpoint-detection tests that confirm equipment is working as designed.
ATG functional · Helium leak detection
The containment-tier tests required at every fill point and dispenser sump.
Spill bucket · Sump · Overfill prevention
State-required vapor recovery and pressure vacuum vent testing.
Stage I & PVV
EPA 40 CFR Part 280 sets the federal baseline. State overlays vary in form requirements, scheduling, and inspector expectations. PTTI tracks the differences per site across all nineteen states served.
We track the forms, deadlines, and inspector preferences for your specific state and site. Ask us what applies where you operate.
The pressurized-system tests that form the backbone of EPA 40 CFR Part 280 compliance. PTTI runs each test on the schedule each state requires, with the manufacturer certifications each test demands.
EPA-recognized volumetric tank tightness testing for in-service and out-of-service USTs. PTTI uses the EZY 3 Locator Plus attached to an isolation tree with a liquid sensor and microphone. Negative pressure is applied to the tank, and the tech listens through headphones for audible leak sounds from inside the tank. Single-wall, double-wall, and interstitial configurations all covered.
EPA 40 CFR Part 280
See details →Pressure-decay tightness testing on every product line. PTTI pressurizes each line to 1.5 times its operating pressure using the Estabrook line tightness tester with a nitrogen tank, then measures decay. Inconclusive testing is common. When a reading indicates fail, PTTI installs a silver bullet for further isolation before declaring a leak. We do not jump to conclusions.
EPA 40 CFR 280.41
See details →Annual mechanical and electronic line leak detector certification per the PEI RP1200 17-step procedure. PTTI uses the Estabrook Leak Detector Tester with a calibrated leak orifice simulating 3 GPH at 10 PSI. Detector must hold metering pressure for the duration of the simulated leak to pass.
EPA 40 CFR 280.40
See details →Functional verification of the gauges, detectors, and sensors that monitor your tank network continuously. Plus pinpoint leak detection for failures that need physical localization.
Probe removal and float inspection, alarm-trigger verification, console programming comparison, printed test record. PTTI is certified to work on all Veeder-Root systems (TLS-300 through TLS-450) and all Franklin INCON systems in every state we service.
EPA 40 CFR Part 280 (monthly leak test required)
See details →Pinpoint leak detection after a failed compliance test. PTTI purges the system, introduces helium, drills holes in concrete above the suspected area, and uses a specialized sniffer to detect helium PPM concentrations against atmospheric air. Concentration patterns pinpoint the leak location. For Stage I systems, a vent tree on top allows helium injection.
Diagnostic, post-failure localization
See details →The containment-tier tests required at every fill point, every dispenser sump, every drop tube. Triennial cycle in most states, more frequent where state program overlays apply.
Hydrostatic testing for single-wall spill buckets. Vacuum testing for dual-wall spill buckets. Hydrostatic pass: water level drops less than 1/8 inch in 1 hour. Vacuum pass: 26 inch water column held after 1 minute at 30 inch starting vacuum.
EPA 40 CFR 280.35, PEI RP1200 C-3
See details →Hydrostatic and DriSump methods. Hydrostatic: fill to 4 inches above highest penetration, settle 15 minutes, measure, wait 1 hour, re-measure. Pass: less than 1/8 inch change. DriSump is a different method, probes drilled into concrete around the sump, capped, then a vapor test reads containment leakage.
PEI RP1200 C-4
See details →Three device types tested per device present at site. Flapper valves verified to shut off product flow at no more than 95% tank capacity. Ball float valves verified to restrict flow at no more than 90%. Overfill alarms verified to trigger at no more than 90% via ATG console comparison.
EPA 40 CFR 280.31, PEI RP1200 C-5 and C-6
See details →State-required vapor recovery and pressure vacuum vent testing. PTTI brings manometers, test rigs, and the state-specific paperwork on every visit. Stage II vapor recovery, required only in California, is outside PTTI’s service scope.
Stage I vapor recovery returns vapors from fuel delivery back to the truck via vapor riser. PVV testing checks pressure/vacuum vent valve function. State requirements vary. Some states require PVs, vent lines, and static torque. Others require only PVs or only static torque. PTTI tracks which forms are required per state per site.
Clean Air Act; PEI RP300
See details →Annual line tightness on every pressurized product line, triennial spill bucket and sump testing across a multi-state portfolio. Uninterrupted compliance scheduling across multiple contract renewals.
ATG functional verification plus Stage I and PVV testing per state schedule across fleet depot yards in the Mountain West.
Annual compliance package across medical facilities in Utah and Colorado: tank tightness, line tightness, spill bucket, sump. Continuous multi-year coverage.
Triennial compliance bundling across government fuel sites: spill bucket, sump, overfill, line tightness. Multi-year contract relationship.