There are also some highly specialised providers in the market who deal with a specific aspect of the business, such as working in deep sand or on offshore projects.

Soil types range from deep sand to rocky.

It grows in shallow sand over laterite, in deep sand, and occasionally atop lateritic rises, on flat or gently undulating land, among kwongan shrubland.

Deep sand bed filters are another filtration method.

Very deep sand; however, has the problem of seepage.