Table of Contents
How big does a secondary containment need to be?
Secondary containment needs to be at least the capacity of the container and sufficient freeboard1 for precipitation. For indoor storage, the industry standard is 110 percent of the container’s capacity. For a single drum, that would be 66 gallons of containment capacity.
What qualifies as secondary containment?
The 411 on Secondary Containment So, basically, secondary containment is any system, device or control measure that is used to stop a discharge from leaving a specified area. The theory is that if a spill can be contained, it will not pollute the environment or cause additional harm.
What is secondary containment for storage tanks?
Secondary containment for ASTs is defined as capturing the entire contents of the largest tank in the containment area in the event of a leak or spill.
How do you calculate secondary containment volume?
Customer Questions: Calculating Secondary Containment Needs
- Length (L’) x Width (W’) x Height (H’) x 7.48 = Sump Capacity (Gallons)
- L x W x 2’H x 7.48 = 520 gallons.
- L x W x 14.96 = 520 gallons.
- L x W = 520/14.96 = 34.76.
- So any combination of L x W >= 34.76, where L > 5.5 and W > 3.5 will work.
How large must a secondary containment structure be for a bulk storage container?
3. The secondary containment system “must have sufficient capacity to contain at least 10% of the total volume of the primary containers or 100% of the volume of the largest container, whichever is greater.”
Do you need secondary containment for double wall tanks?
Shop-built double-walled or double-hulled aboveground storage tanks (ASTs) may be used for secondary containment purposes, as long as they are operated with certain protective measures.
What is the purpose of secondary containment?
Secondary containment systems are an important part of safety control systems and are designed to reduce worker exposure to harmful chemicals and other hazards.
Is a double walled tank considered secondary containment?
An open containment that is half full of water may overflow if a tank spills its contents into the containment. A double wall tank is a form of Secondary Containment that has a small footprint and is sealed to keep dirt, debris and rain out of the containment area.
Is secondary containment required for double walled tanks?
Shop-built double-walled or double-hulled aboveground storage tanks (ASTs) may be used for secondary containment purposes, as long as they are operated with certain protective measures. Here’s more on simplifying secondary containment requirements.
What is primary and secondary containment?
Primary containment protects people and the immediate laboratory environment from exposure to infectious agents. Secondary containment protects the environment external to the laboratory from exposure to infectious materials.
How do you do secondary containment?
8 Tips for Creating Secondary Containment Systems
- Use Containment Pallets and Decks.
- Build Cement Berms.
- Install Flexible Barriers.
- Create Slopes.
- Construct Retention Ponds.
- Build Earthen Berms.
- Use Double-Walled Tanks and Equipment.
- Deploy Collapsible Containment.
Is secondary containment required for double-walled tanks?