Large natural streams of FRESH WATER formed by converging tributaries and which empty
into a body of water (lake or ocean).
https://www.sfed.org/sites/www.sfed.org/files/2022-06/Coloscopie%20assistee%20a%CC%80%20l%27eau%20version%20finale%20V2.pdf 2022 France practice guideline colonoscopes Water colonoscopy water Bacteriology judgment streams rivers Water bacteriology counseling bacteriologist