2018/03/01 - Merged Traill Rural Water District with the Grand Forks-Traill Rural Water District to create the East Central Regional Water District

2018/01/01 - Merged Williams Rural Water District into the new Northwest Rural Water District

2017/01/01 - Added the North Central Regional Water District

12/08/10 Changes - Added the Garrison Rural Water District 08/17/10 Changes - Transferred territory from the Southeast Water Users District - Central to the Barnes Rural Water District 4/02/08 Changes - Excluded State Line Cooperative areas from South Central Water District (under development area) 10/15/07 Changes - Added the Upper Souris Rural Water District The individual systems represent the exact boundary areas served by a Water District for operating a rural water system