Bunded storage are specialised containment systems designed to prevent spills and leaks when storing hazardous and non-hazardous liquids. They consist of a primary storage unit with a secondary containment area, known as a bund, which captures any leaks before they can cause harm. 

Proper liquid storage is essential for workplace safety, environmental protection, and regulatory compliance. Without secure containment, spills can lead to costly clean-ups, legal penalties, and serious health risks. 

Solutions such as Armorgard Safety Stores, External Bunding, Justrite Bunds, Oil & Fuel Tanks, Spill Pallets for Drums, and Spill Pallets for IBC’s provide effective ways to manage liquid storage safely, reducing risks and ensuring compliance with UK regulations. 

Understanding Bunded Storage 


What Is Bunded Storage? 


Bunded Storage is a containment system designed to prevent spills and leaks by surrounding a primary storage container with a secondary protective barrier, known as a bund. This setup ensures that any accidental release of liquids is safely contained, preventing environmental contamination. 

In the UK, regulations stipulate that bunded storage must have a capacity equal to at least 110% of the largest container or 25% of the total combined volume of all stored containers, whichever is greater. This ensures full containment even in the event of container failure or simultaneous leaks. 

Materials commonly used for bund construction include steel, concrete, or high-density polyethylene, chosen based on factors like chemical compatibility, durability, and environmental exposure risks associated with the stored liquid. 

How Does Bunded Storage Work? 


Bunded systems function by providing an extra layer of protection around the stored liquid. If the primary container leaks or overflows, the secondary containment area prevents the liquid from spreading. 

There are different types of bunded storage solutions, including: 

  • External Bunding – Fixed containment structures designed for outdoor storage, commonly used for Oil & Fuel Tanks. 



  • Spill Pallets for Drums and Spill Pallets for IBC’s – Portable containment solutions for workplaces handling smaller quantities of hazardous liquids. 



  • Justrite Bunds and Armorgard Safety Stores – Specialised storage units offering secure containment for chemicals and flammable substances. 


Industries That Require Bunded Storage 


Bunded Storage is essential in industries where liquids pose environmental, safety, or compliance risks. Key sectors include: 

  • Manufacturing – Storage of oils, lubricants, and hazardous chemicals used in production. 



  • Chemical Processing – Secure containment of corrosive or reactive substances. 



  • Fuel Storage – Prevention of diesel, petrol, and oil spills in transport and logistics. 



  • Agriculture – Safe storage of pesticides, fertilisers, and fuels used in farming operations. 


Consequences of Improper Storage 


Failing to use Bunded Storage can lead to severe consequences. For example, a manufacturing plant storing chemicals without proper bunding may experience a leak that contaminates local waterways, leading to environmental fines and operational shutdowns. Similarly, a fuel depot without adequate bunding may suffer a spill, posing a fire risk and resulting in significant financial and legal repercussions. 

Investing in compliant bunded storage solutions reduces these risks, ensuring workplace safety and environmental protection. 

Types of Bunded Storage Solutions 


Armorgard Safety Stores 


Armorgard Safety Stores are purpose-built bunded storage units designed to securely contain hazardous materials, such as chemicals, fuels, and flammable substances. These units are made from robust steel, providing high durability and resistance to corrosion. 

Some of the main advantages of Armorgard Safety Stores are their COSHH compliance, their lockable and reinforced doors that can help prevent unauthorised access and theft. Many models are also fire-resistant, offering additional protection in environments where flammable liquids are stored. 

For example, an industrial site handling large quantities of chemical solvents uses Armorgard Safety Stores to ensure that all hazardous substances are contained within a secure, ventilated unit, reducing the risk of fire and accidental exposure. 

External Bunding 


External Bunding involves fixed secondary containment structures placed around storage tanks or containers to prevent leaks from contaminating the surrounding environment. These structures can range from built-in bunded areas, such as bunded yards with concrete barriers, to dedicated external bunded stores. 

Many businesses choose external bunded stores due to their flexibility, robust construction, and ease of installation. Unlike permanent concrete structures, external bunded stores offer a durable yet adaptable containment solution suitable for long-term use without necessarily being permanent. These stores provide secure containment for liquids such as oils, fuels, and hazardous chemicals, ensuring compliance with environmental regulations while offering practical storage solutions. 

By selecting appropriate external bunding, businesses can achieve compliance with environmental standards, safeguard their sites against costly spills, and effectively protect natural resources. 

Justrite Bunds 

Justrite Bunds provide versatile and high-quality secondary containment solutions specifically designed for the safe storage and handling of hazardous liquids such as oils, chemicals, and fuels. Their innovative pop-up design allows businesses to quickly set them up whenever needed, making them ideal for temporary containment during loading and unloading activities. 

These bunds can be conveniently unfolded and deployed during liquid transfer, ensuring immediate containment if spills occur. After use, Justrite Bunds can be quickly folded down and packed away, offering businesses a flexible and space-efficient solution for safe liquid management. 

A warehouse handling industrial lubricants uses Justrite Bunds to comply with UK hazardous material regulations. By placing oil drums within the bunded area, the warehouse ensures that any accidental spills are contained, preventing workplace hazards and regulatory breaches. 

Oil & Fuel Tanks with Bunded Protection 


Oil & Fuel Tanks are commonly used in industries requiring bulk fuel storage, such as construction, agriculture, and transport. To minimise environmental risks, many modern tanks are bunded, featuring a double-skinned design that provides an extra layer of protection against leaks. 

For example, a construction company operating in remote areas installs bunded Oil & Fuel Tanks to store diesel for heavy machinery. The built-in secondary containment prevents spills from contaminating the ground, ensuring compliance with environmental safety standards. 

Spill Pallets for Drums 


Spill Pallets for Drums provide effective secondary containment, capturing leaks and preventing hazardous substances from contaminating workspaces or the environment. They are typically made from chemical-resistant polyethylene or robust steel, making them ideal for storing drums containing oils, chemicals, and solvents. 

These pallets are particularly beneficial in industrial settings or workshops where significant volumes of hazardous liquids are stored and handled daily. For example, a manufacturing facility storing lubricants or industrial solvents would use drum spill pallets to contain any accidental leaks or spills, protecting employees from potential exposure and preventing environmental contamination. 

Spill Pallets for IBC’s 


Intermediate Bulk Containers (IBCs) hold large volumes of liquids, making them a common choice for industrial applications. Spill Pallets for IBC’s provide secondary containment to prevent spills from these large containers, ensuring compliance with UK safety regulations. 

A manufacturing plant storing industrial cleaning chemicals uses Spill Pallets for IBC’s to prevent accidental leaks from reaching drainage systems. With a high load capacity and integrated drainage features, these pallets offer a reliable solution for large-scale liquid storage. 

Choosing the right bunded storage solution depends on the type of liquid being stored, the storage location, and regulatory requirements. Implementing the appropriate system helps businesses maintain safety, prevent spills, and comply with legal standards. 

How to Choose the Right Bunded Storage Solution 


Selecting the correct Bunded Storage solution depends on several factors, including the type of liquid being stored, the required capacity, environmental risks, and legal obligations. Businesses must assess these factors carefully to ensure compliance with UK regulations and to prevent potential hazards. 

Key Factors to Consider 


Type of Liquid 


Different liquids present varying levels of risk, and this determines the type of bunded storage required. Flammable substances, for example, typically require bunds designed specifically to minimise fire hazards, such as Armorgard Safety Stores. 

Justrite bunds are temporary, portable solutions ideal for short-term containment during liquid transfers or deliveries. For corrosive substances, a variety of long-term storage options are available, depending on the specific liquid and the conditions of use. Selecting the appropriate bunded storage solution must therefore consider the type, quantity, and potential risks associated with each liquid. 

Storage Capacity 


The volume and type of liquid stored will determine the most suitable bunded storage solution. For smaller quantities, such as containers and small cans, a drip tray is sufficient. Drums containing liquids should be stored on dedicated Drum Spill Pallets specifically designed to provide safe containment. For larger liquid storage in Intermediate Bulk Containers (IBCs), Spill Pallets for IBCs offer the necessary protection. 

Fuel tanks equipped with bunded protection are specifically designed for fuel storage, offering a secure and compliant containment solution rather than general bulk storage. Selecting the appropriate containment depends on accurately matching the storage solution to the type and quantity of liquid being managed. 

Environmental Conditions 


Outdoor storage requires appropriate containment solutions capable of handling exposure to weather and environmental conditions. External Bunding, typically constructed from concrete or steel, provides robust protection for outdoor tanks, preventing leaks from contaminating soil and water sources. 

However, spill pallets can also be effectively used outdoors, particularly covered spill pallets designed specifically for external use. These provide flexible containment options for drums and IBCs, ensuring liquids remain secure and protected against weather conditions without necessarily needing fixed bunded structures. 

Regulatory Compliance 


UK regulations mandate that bunded storage must contain at least 110% of the primary container’s capacity. Choosing a compliant solution helps businesses avoid fines and legal consequences. Justrite Bunds and Armorgard Safety Stores are designed to meet strict industry standards. 

Cost vs. Long-Term Benefits 


While bunded storage solutions may require upfront investment, the long-term benefits outweigh the costs. Preventing spills reduces clean-up expenses, avoids regulatory fines, and ensures workplace safety. 

For example, an industrial plant storing volatile chemicals must decide between Justrite Bunds and Armorgard Safety Stores. If theft and fire risks are major concerns, Armorgard Safety Stores offer enhanced security. However, if the priority is chemical resistance, Justrite Bunds provide better protection. Selecting the right storage system ensures both compliance and operational efficiency. 

Regulatory Compliance and Safety Standards 


Ensuring Bunded Storage meets legal requirements is essential for workplace safety and environmental protection. In the UK, strict regulations govern the storage of hazardous liquids, with non-compliance resulting in heavy fines and operational risks. Businesses must understand and adhere to both national and international standards to avoid legal consequences. 

UK and Global Regulations 


In the UK, the Control of Pollution (Oil Storage) Regulations 2001 requires that Oil & Fuel Tanks with a capacity of 200 litres or more must have secondary containment capable of holding at least 110% of the tank’s contents. The Health and Safety Executive (HSE) and the Environment Agency enforce compliance to prevent spills that could harm the environment. 

For chemical storage, the Control of Substances Hazardous to Health (COSHH) Regulations apply. Companies handling flammable or corrosive substances must use appropriate containment solutions such as Justrite Bunds or Armorgard Safety Stores to minimise fire and exposure risks. 

Globally, organisations more and more are looking to comply with ISO 14001 Environmental Management Standards, ensuring that bunded storage prevents leaks from contaminating soil and water sources. 

Legal Requirements for Storage Solutions 


Different storage solutions have specific regulatory requirements: 

  • Oil & Fuel Tanks – Must have External Bunding or built-in bunds to prevent fuel spills. 



  • Spill Pallets for Drums – Must be chemical-resistant and provide adequate sump capacity to contain leaks. 



  • Spill Pallets for IBC’s – Must be designed to hold at least 110% of the IBC’s volume to meet containment regulations. 


Importance of Maintenance and Inspections 


Regular inspections ensure Bunded Storage remains effective. Businesses must check for structural integrity, drainage issues, and corrosion in any bund. Poor maintenance can lead to leaks, safety hazards, and regulatory breaches. 

Case Study: The Cost of Non-Compliance 


In 2023, a UK-based manufacturing company was fined £100,000 after failing to use compliant Spill Pallets for IBC’s, resulting in a chemical leak that contaminated a local water source. The incident highlighted the financial and environmental risks of improper bunded storage. 

By adhering to regulations and conducting routine inspections, businesses can avoid penalties, protect the environment, and ensure workplace safety. 

Choosing the Right Bunded Storage 


Effective Bunded Storage is essential for preventing spills, protecting the environment, and ensuring workplace safety. Whether storing fuels, chemicals, or hazardous liquids, businesses must comply with UK regulations and invest in the right containment solutions. 

Assessing storage needs is crucial—whether it’s Armorgard Safety Stores for secure hazardous material storage, External Bunding for outdoor tanks, or Spill Pallets for Drums and IBC’s for controlled containment. 

To ensure compliance and safety, businesses should consult a Bunded Storage specialist who can recommend the most suitable solution based on industry regulations and operational requirements.