A water fountain has been installed at London Charing Cross station – the first Network Rail station to feature one.
The water fountain will mean free drinking water for 30 million Southeatern railway passengers each year.
Network Rail aims to install them at its other stations on the South East route, including Victoria, London Bridge and Cannon Street, within a year.
The initiative forms part of Network Rail’s wider ambitions to reduce the impact of plastic waste at its stations.
Network Rail chief executive Mark Carne said: “We hope that by making this small change, we not only help quench the thirst of our station users, but also have a positive impact on the environment by reducing single-use plastics.
“As one of Britain’s biggest landowners, we are always looking for the best ways to positively change, protect and enhance Britain’s environment and it’s our ambition to reduce the waste that we send to landfill to as near as possible to zero.”
Mark Carne was joined by environment minister Thérèse Coffey. She added: “By refilling our water bottles to cut our plastic use we can each make a genuine difference and help to protect our oceans and precious marine life.”