Spill Containment vs. Secondary Containment
When there’s a spill, your first priority is to stop it from spreading. By quickly containing a spill, you can reduce the spill to a smaller area. That means it will take less time to clean.
Best practice is to have a spill response plan in place that deals with your specific spill requirments. It helps to have access to absorbent socks, booms, non-absorbent dikes or even drainage sumps designed to collect spilled liquids.
Drums, totes and tanks are primary containers. Containers like these generally work well for containing liquid contents. If the contents are hazardous, and they can fail, the EPA requires them to have secondary containment.
The EPA doesn’t specify exactly what secondary containment must look like. However, EPA is clear about what containment needs to do: If the primary container fails, the secondary containment device/structure must be able to hold the entire volume that could spill.