Take something along to drink! Prohibition sign is intended to prevent damage to health from drinking water that is non-potable. Can be found at fountains or on campsites.
Learn more about the meaning
Emoji History
Development of the emoji in the Unicode lexicon
First included
The emoji โNon-potable waterโ was approved as part of Unicode 8.0 in 2015 and added to Emoji 1.0 .