river water

river water (countable and uncountable, plural river waters)

1. Water in or taken from a river.
   • 1978, Haslam, River Plants, →ISBN, page 115:

     They can be changed in various ways; for instance, river water is more turbid than that of lakes, since rivers drain water from the land, ...

   • 2006, C. A. Brebbia, J. S. Antunes do Carmo, Water Pollution VIII: Modelling, Monitoring and Management, →ISBN, page 67:

     All these five directly use Pavana River, thus river water quality is very important for them.

   • 2008, Makoto Taniguchi, William C. Burnett, Yoshihiro Fukushima, From Headwaters to the Ocean, →ISBN:

     River waters are used as drinking water and irrigation water for agricultural fields.

   • 2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 110:

     Bad weather, therefore, cannot disrupt the metronomic existence of its regular users, but river water does come in, both from the Thames and its tributary the Walbrook. [...] This may be why the line is nicknamed 'The Drain', [...]

• riverwater, river-water

• “river water”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.