Essentially, a 2m wide strip was to be left all around the pond area. This had been shaved of vegetation so that when earth is piled on to form an embankment, a good bond occurs. The embankment is to be about 1.5m high. Inside of the pond area outlined by the embankment strip, is a 1.5m wide strip left to remain as a berm. [If some of the terms are unclear please refer back to the earlier cited article.] Inside of the berm strip is yet another strip, 2m wide that is left alone while digging. This is the slope allowance.[-‘submerged’ by water in the pond in the adjoining illustration] After the pond is dug, its sides will be vertical which will lead to erosion. The slope allowance is the stock from which the pond will be given sloping sides. In sum, the actual digging began 5.5m from the outer line of the embankment. At pointReturn the area occupied by the pond system is 15,000 sft; the surface area of the water holding pit is only about half of that. Being 6′ deep, it has a holding capacity of 1.5million litres.