How long can Vibrio cholerae live in its ambiental optimal context?
I Found It!!!!    SURVIVAL OUTSIDE HOST: Cholera can survive in well water for 7.5 ± 1.9 days and the El Tor biotype can survive 19.3 ± 5.1 days(Footnote 21). The bacterium can survive in a wide variety of foods and drinks for 1-14 days at room temperature and 1-35 days in an ice box(Footnote 21). It has also been found on fomites at room temperature for 1-7 days(Footnote 21).

Source>>http://www.phac-aspc.gc.ca/lab-bio/res/psds-ftss/vibrio-cholerae-eng.php