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Containment Wall System

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Provide impermeable containment of hydrocarbons and aggressive liquids either for secondary containment to 110% of the capacity of tanks or equipment or  primary containment of liquids in lagoons


Modular wall and corner sections

Section dims L x W x H 1829 x 610 x 914mm

Molded locking pegs connect walls and corners

Impermeable LLDPE liner

2.4 mm Geotextile underliner

Liner and underliner resistant to ultraviolet, biological and chemical degradation

Capping clips

Assembled and disassembled on site

Can be constructed on concrete, hardcore, tarmac, sand, or grass

Not secured to the substrate


Can be constructed to suit individual site requirements

Provides volume storage capacity

Easy assembly

Watertight Bunding

Protects liner from puncturing

Conforms to Environment Agency LFE 5 and CIRIA C736: Design of Containment Systems for the Prevention of Water Pollution from Industrial Accidents

Secures liner in place

Turnkey job, no need for own technical staff

Flexible locations

Easy dismantled and removed after use

  • Requires suitable flat ground comprised of concrete or graded hardcore – not sand.

  • Bund walls and corners slotted together

  • Geotextile underlay for protection

  • Impermeable liner compatible for the storage of the liquids contained

  • UL-34-204 Ultra Containment Wall - 1829 x 610 x 914

  • UL-34-205 Ultra Containment Corner - 762 x 762 x 914

  • FL- 34 – 209  1 mm LLDPE Liner and Geotextile Underliner

Bund Assembly
  • Provided by Fosse Liquitrol

  • Walls, corners, underlay and liner positioned

  • Liner secured onto walls using capping

  • Any tank can be manoeuvred into bund during assembly

  • Bund completed and made impermeable

Bund Disassembly
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  • The bund can be dismantled and removed when the job is complete

  • Can be relocated to another site

  • Liners can be repaired or replaced

Geotextile underlay in place
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Liner being installed
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Cappings securing the liner in place
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Tanks located in bund and in use
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Liquid Storage Lagoon
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Bund Assembly
  • Manufactured in the USA by Ultratech International Inc

  • Meets SPCC, EPA Container Storage Regulation 40 CFR 264.175 USA

  • Meets Control of Pollution (Oil Storage) (England) Regulations 2001

Pressure Testing

Ultratech carried out pressure testing by filling bunds of different sizes with liquid. The liquid does layer over the bottom "L" in the walls which creates the downward force that holds the walls in place.

The test bunds were left in place for many months with no leakage or malformation.

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