Environmental Efficiency undertakes bund testing strictly in accordance with the EPA Guidance document 'Storage and Transfer of Materials for Scheduled Activities'. This guidance divides bunds into three containment classes and this class dictates the method of testing to be carried out. If the containment class of the bunds on site are unknown, Environmental Efficiency can determine the class from the nature and volumes of the substances stored in the tanks.
The allowable bund test methods include hydrostatic tests to BS8007 and CIRIA163, and visual inspections.
Where the bund cannot be filled with water to capacity for practical or safety reasons, the EPA allows a visual inspection by a Chartered Engineer and Environmental Efficiency can undertake this.