Abstract: Based on the hydrogeological conditions and undergroundwater exploitation status,the plan of 13 emergency water supply sources of 11 key cities is put forward,and the specific exploitation conditions are given separately.Maximum amount of the emergency extraction is evaluated as 155.03 × 104m3 /d adopting interferential well groups method for plain area,large well method for karst area and supply method and drainage method for mountain and basin area.Resilience of the emergency water supply sour...