What is Secondary Containment?

  • , by Richard Wilkes
  • 3 min reading time
What is Secondary Containment?


Secondary containment is a backup system that captures leaks, spills, or overflows from tanks, drums, totes, and other liquid storage containers before they spread into the surrounding area. It helps protect workers, equipment, and the environment while supporting safer storage practices.

For companies that store fuel, oil, chemicals, or industrial fluids, secondary containment is an important safeguard. A single leak can create cleanup costs, safety hazards, operational delays, and environmental exposure. With the right containment system in place, those risks are easier to control.

Why Secondary Containment Matters

The purpose of secondary containment is simple: if the main container fails during storage or transfer, the spilled liquid stays contained.

That protection can help businesses:

  • Reduce the risk of soil and water contamination
  • Protect employees and equipment nearby
  • Limit cleanup costs and downtime
  • Improve spill preparedness
  • Support compliance and site safety standards

In many industrial and commercial settings, secondary containment is a standard part of responsible liquid storage.

How It Works

Every storage setup starts with a primary container, such as a tank, drum, or tote. Secondary containment adds a second layer of protection around or beneath that container. If a leak, rupture, or overflow occurs, the containment system captures the liquid and prevents it from spreading.

Common examples include:

  • Spill pallets
  • Containment berms
  • Double-walled tanks
  • Sumps
  • Lined containment areas
  • Custom containment systems

The right option depends on the material being stored, the volume involved, and the conditions at the site.

Where It Is Commonly Used

Secondary containment is used anywhere liquids could pose a safety or environmental risk if released. Common applications include:

  • Fuel storage areas
  • Chemical storage locations
  • Oil drums and totes
  • Generator and transformer sites
  • Loading and transfer points
  • Construction and industrial job sites
  • Fleet maintenance areas

What to Look for in a Containment System

A good secondary containment system should fit the application it is meant to protect. Key considerations include:

  • Compatibility with the stored liquid
  • Adequate capacity
  • Durability in harsh conditions
  • Resistance to punctures, weather, and wear
  • Easy inspection and maintenance

Not every product works for every site, which is why selecting the right containment solution matters.

Secondary containment helps prevent a leak from turning into a larger safety, environmental, or operational problem. For businesses that store or handle liquids, it is one of the most practical ways to improve protection and reduce risk.

At Consolidated Containment, we help customers find reliable containment solutions built for real-world conditions. Whether you need spill pallets, berms, or a custom setup, our team can help you choose the right fit for your operation.

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