Thousands of homes in Cardiff are without water this afternoon due to problems with a city water main.
Welsh Water said households in Canton, Ely, Riverside and Grangetown are all experiencing problems after a contractor damaged a water main in the Ely area.
A team is on site repairing the damage, and water supplies are expected to start returning by later this evening.
In a statement, Welsh Water said: “We were alerted this afternoon that a third party had caused damage to our water main on the Ely Bridge development site. This is interrupting local water supply to households in Ely, Canton and Victoria Park and we have a team on-site carrying out an emergency repair. Whilst we estimate that water supplies will begin returning to normal later this evening, we are distributing bottled water to vulnerable customers in these areas.
“Until the repair is complete, our customers in the area may experience low water pressure or have no water supply at all. We would like to assure customers we are working as quickly as possible to restore supplies.
“As supplies begin to return, we would ask customers to use water sparingly if possible as this will help the network return to normal. We would also remind customers that as supplies return, they may notice a slight discolouration of their tap water. This is not unusual after an incident of this nature and should clear within a short period of time.
“If anyone has concerns about their water, we would ask they call out operational helpline on 0800 052 0130.”
Canton councillor Cerys Furlong tweeted that up to 10,000 homes are without water, and that the problem was expected to take up to six hours to fix.
Major water fail in Canton, over 10k homes affected according to @welshwater due 3rd party damage. 4-6 hours to fix. Will update have more
— Cerys Furlong (@cerysfurlong) June 21, 2013
There have also been problems with water supply today in the Whitchurch area, where a burst water main is affecting supplies.
A team is also working to repair the damage there, with supplied in the CF14 postcode area expected to be back later this afternoon.
A spokesperson for EBDC (Ely Bridge Development Company) said: “We can confirm that a mains water pipe was disturbed this afternoon during remediation work at the site which lead to a temporary disruption to the water supply in the Canton area.
We are currently working to remedy the situation and expect the water supply to resume shortly (before 6pm this evening). We apologise for any inconvenience caused by the disruption.”