超844亿立方米！

Core Viewpoint - The South-to-North Water Diversion Project's East and Middle Line Phase I has been operational for 11 years, benefiting 195 million people along the route by providing stable and high-quality water sources [1][2]. Group 1: Project Impact - As of now, the project has delivered over 84.4 billion cubic meters of water to northern regions, serving 48 large and medium-sized cities and 195 million people [2]. - The water quality of the Middle Line project consistently meets or exceeds Class II surface water standards, while the East Line project maintains Class III standards [4]. - The guarantee rate for domestic water supply in cities along the Middle Line has increased from below 75% to over 95%, and the East Line's guarantee rate for domestic and industrial water supply has risen from below 80% to 97% [4]. Group 2: Ecological Benefits - The project has utilized its surplus flow capacity for ecological replenishment, providing over 12.3 billion cubic meters of ecological water to more than 50 rivers and lakes, revitalizing previously dry rivers, lakes, and wetlands along the route [6].