Chongqing Wastewater Treatment Plant, Xituo Town, Chongqing, China

The Chongqing wastewater treatment plant is located in Xituo Town, Shizhu Tujia Autonomous County, Chongqing, China. It serves a population of approximately 8,000 people, classifying it as a small-scale municipal facility. The plant is situated in the mountainous region of southwestern China, near the Yangtze River basin. With a designed capacity of 1.00 volume unit, the plant is sized for a small community. As a Chinese wastewater facility, it operates under national standards such as the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits based on the receiving water body's sensitivity. The plant's treated effluent likely discharges into a local tributary of the Yangtze River, which flows eastward through the Three Gorges region and into the East China Sea. The Yangtze basin supports diverse aquatic life and is critical for water supply, fisheries, and agriculture. The plant's proximity to the coast (within 50 km) means its discharge can influence downstream water quality in the Yangtze estuary.

The plant discharges into a tributary of the Yangtze River, which flows through the Three Gorges region and empties into the East China Sea. The Yangtze basin is ecologically significant, supporting species such as the Chinese sturgeon and finless porpoise. The plant's location within 50 km of the coast means its effluent can affect coastal water quality, particularly in the Yangtze River estuary, a critical habitat for migratory fish and birds.