Aboveground Fuel Tank (AST) Inspection Logger
STI SP001-style monthly AST checks — shell, containment, vents, gauges, water draw and spill kit readiness; offline log with GPS.
New storage tank inspection
STI SP001 periodic (typically monthly) owner inspections, plus annual detailed checks; formal certified inspections per tank category.
Field guide: Aboveground Fuel Tank (AST) Inspection Logger
Most reportable fuel releases from small ASTs don't come from tank shells — they come from the dike drain valve someone left open before the overfill, the corroded fitting that wept for months, and the rainwater 'managed' by propping containment open permanently. The STI SP001 monthly inspection this logger encodes targets exactly that pattern: shell and fittings, containment integrity with drain-valve position called out explicitly, vents (an emergency vent stuck shut turns a fire into a BLEVE risk), overfill protection, and water in the product.
The water-draw field reflects fuel-quality reality: water under diesel breeds microbes that corrode tanks from inside and kill engines downstream — over ~6 mm on the stick means pump-out. For SPCC-regulated facilities, this dated log per tank IS the inspection records section of the plan; the export gives your PE-certified plan its evidence with GPS pins for multi-site fleets.
Field tips
- Check the drain valve position FIRST, every time — open-drain-plus-overfill is the textbook reportable release.
- Use water-finding paste monthly on diesel tanks; the interface is invisible to a gauge and merciless to injectors.
- Lift the emergency vent by hand (where design allows) — a stuck-seated vent is invisible until the day it's everything.
Records are stored only in this browser (localStorage) — export regularly. This tool aids field documentation; it does not replace your agency's official inspection procedures or engineering judgment.
Aboveground Fuel Tank (AST) Inspection Logger — STI SP001-style monthly AST checks — shell, containment, vents, gauges, water draw and spill kit readiness; offline log with GPS. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Aboveground Fuel Tank (AST) Inspection Logger
Most reportable fuel releases from small ASTs don't come from tank shells — they come from the dike drain valve someone left open before the overfill, the corroded fitting that wept for months, and the rainwater 'managed' by propping containment open permanently. The STI SP001 monthly inspection this logger encodes targets exactly that pattern: shell and fittings, containment integrity with drain-valve position called out explicitly, vents (an emergency vent stuck shut turns a fire into a BLEVE risk), overfill protection, and water in the product.
How to use Aboveground Fuel Tank (AST) Inspection Logger
- 1Enter the tank id and tap 📍 GPS to pin the storage tank's exact location (or type coordinates).
- 2Work through the storage tank checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Satisfactory / Monitor / Repair required / Release/risk of release ⚠ scale; actionable findings are tallied automatically.
- 4Add notes and log the inspection — it saves instantly to your device, even with zero signal.
- 5Export the round as CSV for your asset system, GeoJSON for the GIS, or print a clean report.
Why use Aboveground Fuel Tank (AST) Inspection Logger?
- ✓100% free, no sign-up — built for crews, not per-seat licences
- ✓Offline-first: records save to your device instantly and survive dead zones
- ✓One-tap GPS tagging with accuracy capture on every record
- ✓Exports CSV for asset systems, GeoJSON for GIS, and print-ready reports
- ✓Checklist and guidance aligned with STI SP001
Frequently asked questions
Who must follow STI SP001?+
It's the standard SPCC plans typically reference for shop-fabricated ASTs — if your facility stores oil above EPA SPCC thresholds (generally >1,320 gal aggregate), your plan likely commits you to SP001-style periodic inspections by trained owner personnel, plus formal certified inspections on a schedule set by tank category and containment.
Can I drain rainwater from containment?+
Only by inspect-then-drain: verify no sheen, open valve, drain, CLOSE AND (where required) LOCK the valve, and document. SPCC requires containment drainage be controlled and recorded. The standing answer to chronic rainwater is roofs or double-wall tanks — not a permanently open drain.
Why is the emergency vent so important?+
In a fire, heated product vaporizes faster than the normal vent can pass; the emergency vent's job is relieving that surge before the tank ruptures. They fail by corrosion-seizing or painted-shut seats. SP001 inspections explicitly include verifying it's free — a check that takes seconds and prevents catastrophic failure modes.
How much water in a fuel tank is too much?+
Operationally, act at about 6 mm (1/4 in) on the stick for diesel — beyond that you have a microbe farm and a slug that storms into filters when the tank gets stirred by a delivery. After every delivery is the right time to re-check: drops entrained in fill turbulence settle within hours.
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<iframe src="https://tooljolt.com/tools/fuel-tank-ast-inspection-logger" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Aboveground Fuel Tank (AST) Inspection Logger — ToolJolt" loading="lazy"></iframe>Related GIS tools
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