CHONGQING, Nov. 4 -- Water supply to around 100,000 residents in southwest China's Chongqing Municipality resumed early Sunday after more than 24 hours of cutoff due to water plant equipment failure, local sources said.Water supply was cut around 4 p.m. Friday to about 100,000 residents in northern downtown of Chongqing due to a mechanical failure of the electricity facilities of Liangtuo Water Plant, according to a source with Chongqing Water Supply Group.Repair work immediately started and by 6 p.m. Saturday, water supply began to restart to the affected areas, said the source.In the early hours of Sunday, water returned as normal to all the affected households, the source said.Fire-fighting vehicles were mobilized to send water to residents during the cutoff.