The base of the transit storage area shall be impervious and designed to retain any spillage.
IBCs and packages may be placed on the ground in loading and unloading areas prior to loading vehicles or prior to moving containers to a storage area or installation.

The ground should be impervious and designed to retain any spillage or drain to a containment for environmental reasons

A “Package” is a container <500L

Stores shall be provided with a means of either containing a spill or of diverting it to a compound within the boundaries of the premises.

The net capacity of any compound shall be not less than whichever is the greater of —

  1. 25 % of the aggregate volume of liquids kept; or
  2. the capacity of the largest container kept;

but need not exceed 5,000 L where only packages are kept.

Capacity of compounds

  • The net capacity of a compound shall be not less than 110 % of the capacity of the largest tank located within the compound, or 25 % of the total capacity of all tanks within the compound, whichever is the greater.

Materials of Construction

  • The materials of construction shall be substantially immune to attack by any corrosive substance that they may be required to contain.
  • Spill compounds made of plastics shall not be used when there is a potential that it could melt when exposed to a radiant heat source.
  • Radiant heat sources could include burning stacks of combustible material, fuel storage facilities or buildings made of combustible material.

Design

  • They shall be impervious and designed to retain and enable the recovery of any spillage.
  • They shall be designed to withstand the hydrostatic pressure expected to be exerted on them when they are full.

 Compound drainage

  • Substances that might react dangerously shall not be directed into a common compound.