Types of water sources
Around 97% of the water on Earth is salt water and the remaining 3% is freshwater. These are our main freshwater sources:
Rainwater is a relatively clean water source, but it can become contaminated once it hits the ground, which is why we treat it before supplying it to customers. Rainwater harvesting also plays an important role in reducing pressure on the water network.
Reservoirs are constructed lakes or bodies of water designed to store rainwater before it is transported to water treatment centres. Once cleaned, this water is then supplied to homes and businesses.
Groundwater can be found beneath the Earth’s surface in the cracks and spaces between soil, sand and rock. We use boreholes, which have been sunk up to 120 meters underground, to pump this water to the surface.
Rivers and streams:
Rivers and streams provide many benefits to humans and are important habitats for plants and animals. They also carry water, organisms, gases and nutrients to areas that need them, as well as draining nearly 75% of the Earth's land surface.