Liang Tan river is not only the largest sub-basin river but also the most polluted in Chongqing City.

梁滩河是重庆市主城区流域面积最大的次级河流，也是污染最严重的河流。

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On March twenty-seventh,nineteen twelve, Missus Taft and the wife of the Japanese Ambassador together planted two trees at a part of the river called the tidal basin.

VOA: special.2011.04.08

After independence, nine countries in the Niger River Basin in Africa created a joint river basin authority to cooperatively manage their joint water resources.

FORBES: World Water Day 2013: Water as a Catalyst for Peace

The Susquehanna River Basin Commission said the overall health of the river basin is improving, but there are some problem areas.

WSJ: Susquehanna River commission wants gauge funding

Within the implementation of the Framework Agreement on the Sava River Basin (FASRB), the Sava countries drafted the Protocol on Sediment Management to the FASRB, to provide a legal basis for future cooperation of the countries on the development of the Sediment Management Plan for the Sava River Basin (Sava SM Plan).

UNESCO: OFFICE IN VENICE