Paragraph 8 Storage of fuel and hazardous substancesI1

it is located on an impervious base and graded to drain to a sump or collector, or surrounded by impervious walls to form a bunded compound;

all filling points, vents, gauges and sight glasses are located on an impervious base and the drainage system sealed, with no discharge to any watercourse, land or underground strata;

any associated pipe work is located above ground and protected from accidental damage;

all filling points and tank overflow pipe outlets are designed to discharge into a sump, collector or bunded compound.