Secondary containment for IBC totes isn't optional if you're storing regulated materials — it's an EPA requirement, and in many states it applies to any bulk liquid storage regardless of substance. Getting this wrong means potential fines, insurance voidance, and environmental liability. Getting it right is straightforward: the right pallet, correctly sized, from a compliant supplier.
This guide covers the exact regulation, how to calculate your required containment volume, the best compliant products for every budget, and what to do if you're storing multiple totes.
How Much Containment Do You Need?
| IBC Tote Size | Tote Capacity | Minimum Required (×1.1) | Recommended Pallet Size |
|---|---|---|---|
| 110-gallon IBC | 110 gal | 121 gal minimum | 200-gal pallet ✓ |
| 135-gallon IBC | 135 gal | 149 gal minimum | 200-gal pallet ✓ |
| 275-gallon IBC | 275 gal | 303 gal minimum | 330-gal pallet ✓ |
| 330-gallon IBC | 330 gal | 363 gal minimum | 400-gal pallet ✓ |
| Two 275-gal IBCs | 550 gal total | 303 gal minimum* | Double-tote 660-gal pallet ✓ |
* EPA rule requires 110% of the largest single container, not the total volume. Two 275-gallon totes still only require 303 gallons of containment — though many facilities choose to contain the full volume as best practice.
Who Needs Secondary Containment?
Federally Required
Hazardous waste storage — Any facility storing hazardous waste in quantities above the threshold for their generator category requires secondary containment under RCRA (Resource Conservation and Recovery Act), regardless of container size.
Oil storage (SPCC rule) — Facilities that store oil in quantities above 1,320 gallons above ground (or 42,000 gallons below ground) must have an SPCC plan including secondary containment. A single 275-gallon IBC tote is below the threshold, but many agricultural and commercial operations with multiple totes exceed it.
Often Required by State/Local Code
Even below federal thresholds, many states require secondary containment for any bulk liquid storage of petroleum products, agricultural chemicals, or other regulated substances. Local fire codes frequently require containment for flammable and combustible liquids stored above certain quantities. Check with your local fire marshal and state environmental agency.
Required by Insurance
Many commercial property and general liability insurance policies require secondary containment for any bulk chemical or fuel storage as a condition of coverage. Failure to comply can void your coverage for spill-related claims — even if the spill itself was an accident. Review your policy or check with your broker.
Best Practice (Even When Not Required)
For any liquid that could damage the environment or cause liability — fuel, lubricants, agricultural chemicals, cleaning products — secondary containment is simply good risk management. A spill containment pallet costs $200–$800. Environmental cleanup, fines, and liability from an unconstrained spill can cost hundreds of thousands.
Best IBC Tote Spill Containment Pallets
Storing Multiple IBC Totes
The EPA 110% rule applies to the largest single container in a containment area — not the total combined volume. Two 275-gallon totes in the same secondary containment area still only require 303 gallons of containment capacity, not 605 gallons.
However, this assumes the totes are in the same secondary containment area (bermed floor, double-tote pallet, or containment room). If each tote has its own individual spill pallet, each pallet must be sized to 110% of its own tote independently.
Options for Multiple Totes
Double-tote spill pallet — A single pallet that holds two 275-gallon IBC totes with 660-gallon combined containment capacity. More cost-effective than two individual pallets and takes less floor space.
Bermed containment area — A permanently bermed concrete or lined area that contains all totes stored within it. Common in warehouses and chemical facilities. A licensed engineer typically designs these to ensure compliant capacity and drainage.
Individual pallets per tote — Simplest approach. Each tote sits on its own 330-gallon spill pallet. Most flexible for facilities where tote placement changes.
Types of Secondary Containment
Spill Containment Pallet (Most Common)
A portable platform with an integrated sump. The IBC tote sits on the platform, and any leak or spill drains into the sump below. Available in polyethylene (corrosion-resistant for most chemicals) and steel (for high-load applications). Forklift-accessible on 2 or 4 sides.
IBC Containment Tray
A lower-profile alternative to a full pallet — essentially a shallow basin that the tote's pallet sits inside. Lower cost ($100–$200) but lower capacity and not suitable for full-volume spill containment without a drain system. Used when spill risk is low and regulatory requirements are less stringent.
Bermed Containment Area
A permanent containment solution for facilities storing multiple totes or large volumes. Concrete floors with berms (raised edges) or flexible berms installed around a storage area. Must be lined to prevent seepage, and the volume must be engineered for compliance. Expensive to install but zero per-tote cost once built.
Double-Wall / Integrated Containment Tote
The Roth double-wall IBC tote has a built-in steel outer shell that serves as secondary containment — no separate pallet required. The outer shell is rated to contain the full volume of the inner tank. Most cost-effective for heating oil and fuel storage where a dedicated containment vessel is worth the premium.