Based on publicly released data from 2025, domestic water plants with a daily water supply capacity exceeding one million tons are mainly located in megacities such as Beijing, Shanghai, Guangzhou and Chengdu.
01 Chengdu No.7 Water Supply Plant
This water plant boasts a daily water supply capacity of 1.8 million tons, ranking among the largest waterworks in China. It adopts a gravity-flow water supply process, which effectively reduces energy consumption.
02 Beijing No. 9 Water Plant
This water plant has a daily water supply capacity of 1.71 million tons, serving as the core backbone of Beijing's water supply system. It mainly draws water from the Danjiangkou Reservoir of the South-to-North Water Diversion Project.
03 Guangzhou North Water Plant
The total designed capacity of the water plant is 1.5 million tons per day. It houses the largest single membrane treatment workshop in Asia, and is also China’s first smart water plant adopting 5G industrial Internet technology.
04 Nanjing Beihekou Water Plant
This water plant has a daily water supply capacity of 1.2 million tons, undertaking more than half of the water supply for the main urban area of Nanjing.
05 Shenzhen Nanshan Water Plant
Designed water supply capacity is 1.2 million tons per day, serving approximately 1.8 million residents. Its finished water quality exceeds the direct drinking water standards.
06 Guangzhou Nanzhou Water Plant
This water plant has a daily water supply capacity of 1.2 million tons and is one of the key water supply infrastructures in Guangzhou.
07 Chongqing Yuelai Water Plant
This water plant has a daily water supply capacity of 1.2 million tons, ensuring water supply security for the northern area of Chongqing.
08 Dongguan Songshanhu Water Plant
The designed water supply capacity of this plant is 1.1 million tons per day. It is the largest single water plant built in one phase across Asia, with its finished water quality ranking among the top nationwide.
09 Dongguan No. 3 Water Plant
This water plant has a daily water supply capacity of 1.1 million tons, mainly serving the Dongguan area.
10 Wuhan Baishazhou Water Plant
This water plant has a daily water supply capacity of 1 million tons. Sourced from the Yangtze River, it mainly serves the old urban area of Wuchang and East Lake High-Tech Development Zone.
11 Guangzhou Xicun Water Plant
This water plant has a daily water supply capacity of 1 million tons. Built a long time ago, it has long provided stable support for the water supply of Guangzhou.
12 Tianjin Xinkaihe Water Plant
This water plant has a daily water supply capacity of 1 million tons and serves as a key water supply hub project in Tianjin.
13 Shanghai Taihe Water Plant
This water plant has a daily water supply capacity of 1 million tons. Adopting modern water treatment technologies, it provides reliable water supply guarantee for citizens in Shanghai.
14 Wuxi Xicheng Water Plant
This water plant has a daily water supply capacity of 1 million tons, providing continuous and stable water supply services for the Wuxi area.
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