Water that may contain objectionable pollution, contamination, minerals, or infective agents and is considered unsafe and/or unpalatable for drinking.
NON-POTABLE (NON-POE-TUH-BULL)
Meaning of NON-POTABLE (NON-POE-TUH-BULL) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012