The attacks came just hours after the Iraqi government announced the start of a wide-scale operation to recapture areas under the control of the IS group in Anbar.
Brig Gen Saad Maan Ibrahim, the spokesman for the Joint Military Command, told The Associated Press that the attacks took place outside the Islamic State-held city of Fallujah late the previous night.
Ibrahim added that the Islamic State extremists used a sandstorm that engulfed most of Iraq yesterday night to launch the deadly wave of bombings. He said it was not clear how many suicide attackers were involved in the bombings but they hit the military from multiple directions.
Last month, the water station fell into the hands of IS militants following attacks that also included multiple suicide bombings and that killed a general commanding the 1st Division and a dozen other officers and soldiers.
The Iraqi operation to retake Anbar, which is said to be backed by Shiite militias and Sunni pro-government fighters, is deemed critical in regaining momentum in the fight against the Islamic State.