SPCC inspection requirements: the monthly walkthrough, explained

Short answer: the SPCC rule requires integrity inspections of bulk storage containers on a regular schedule developed in accordance with industry standards, conducted under written procedures, and recorded with a signature. For most qualified facilities that means a monthly visual inspection of tanks, secondary containment, and transfer areas, plus annual inspection elements from the applicable industry standard, and annual discharge prevention briefings for anyone who handles oil.

Where the "monthly" comes from

40 CFR 112.8(c)(6) requires each bulk storage container to be tested or inspected for integrity on a regular schedule and whenever material repairs are made, with the scope and frequency per industry inspection standards. EPA's qualified-facility guidance, and the inspection schedule attached to the EPA's own Tier I template, make the cadence concrete: visually inspect monthly for signs of deterioration, discharges, or accumulation of oil inside diked areas, and add the annual inspection elements your industry standard calls for. Shop-built aboveground tanks are commonly inspected under STI SP001; larger field-erected tanks under API 653. Which standard applies depends on your tanks; that's a decision your plan's inspection program should state explicitly.

The inspection program itself must be described in the plan: scope, frequency, method, and who conducts it. "We walk around and look" written nowhere is not a program; the written procedures are part of the rule (112.7(e)).

Who can do the inspections

For qualified facilities, the rule doesn't require a third-party inspector for the routine walkthrough; it requires that inspections follow your written procedures and that records be signed by "the appropriate supervisor or inspector." What it does require is competence where the industry standard demands it: formal inspection elements under STI SP001 or API 653 (external visual inspection, in-service inspection intervals) may need qualified/certified inspectors for those specific elements. The monthly walkthrough, though, is yours, provided it's documented, consistent, and actually performed.

What the walkthrough covers

A defensible monthly inspection hits five areas:

1. Tank integrity: corrosion, dents, and damage on the exterior; foundation settling or cracks; leaks or staining at the tank base; vents and openings clear; overfill prevention devices tested and working; level gauges readable; identification labels legible.
2. Secondary containment: dike and berm walls intact (no cracks, holes, erosion); no accumulated oil or unmanaged standing water; drainage valves closed and locked; liner integrity where applicable; containment capacity holding up; no vegetation establishing; proper slope toward the sump.
3. Piping and valves: aboveground piping free of leaks and corrosion; supports and hangers secure; valves operational and labeled; flanges and connections tight; flexible hoses in good condition; loading/unloading connections secured when idle.
4. Spill response equipment: spill kit present and stocked; absorbents (pads, booms, granular) available; cleanup tools present; PPE available; disposal containers ready.
5. Documentation and signage: the SPCC plan accessible at the facility; emergency contact information posted; spill reporting procedures posted; tank capacity and contents placards visible; previous inspection records on hand.

Thirty well-chosen points across those five groups cover the rule's monthly expectations. A longer checklist isn't more compliant: a 90-item form that nobody finishes consistently protects you less than a 30-point one that gets done every month with photos and a signature. The rule cares about the signed record, not the page count.

What turns a walkthrough into a compliance record

• The record is signed by the inspector or appropriate supervisor, every time (112.7(e));
• Failed items get corrected promptly: the rule requires visible discharges and leaks to be corrected, and oil accumulated in diked areas to be promptly removed (112.8(c)(10));
• Photos attach to the item they document, not to a phone gallery that no one can correlate later;
• The record survives three years: the retention window that makes your pattern of inspections provable.

FAQ

How often do SPCC inspections have to happen? Monthly for the visual inspection of bulk storage containers at most qualified facilities, per the schedule in your plan (which follows the industry standard). Additional elements (annual inspections, formal integrity assessments) come from the standard itself.

Do I need a certified inspector every month? No. The monthly walkthrough follows your written procedures with signed records. Formal elements of the industry standard (e.g., certain STI SP001 inspections) are where certified inspectors enter the picture.

What happens if I find a problem? Fix it and document the fix. Leaks and visible discharges must be promptly corrected under 112.8(c)(10). A failed item with a tracked corrective action is compliance working; a failed item nobody addressed is a violation with a paper trail.

Is there a checklist I can use? PlanKeep's inspection runner ships with a 30-point, 5-group checklist built around these requirements: run it from a phone at the tank, with photos where they matter, signatures, and three-year record retention. Failed items automatically become findings with a corrective-action lifecycle.