We manage the collection, treatment and distribution of water, supplying around 1.24 billion litres of drinking water each day – that’s the equivalent of a glass of water for every person on the planet! We also collect, treat and dispose of about one billion litres of waste water safely back into the environment each day. Through our grid system we operate more than 700 water and sewage treatment works and 120 reservoirs. We operate 40,000 miles of water and sewerage mains – enough pipework to circulate the earth! Many of these pipes were constructed back in the 19th century and are still in use today. Our job is to maintain these in good working order and continually improve them for future generations to protect public health, the environment and public water supply.