2010 ADA Standards for Accessible Design Pocket Guide

211.2 Minimum Number.

No fewer than two drinking fountains shall be provided. One drinking fountain shall comply with 602.1 through 602.6 and one drinking fountain shall comply with 602.7. [S.H. 4.1.3(10)(a)]

EXCEPTION: Where a single drinking fountain complies with 602.1 through 602.6 and 602.7, it shall be permitted to be substituted for two separate drinking fountains.