Purifying Water Army Reserve soldiers purify water from Guajataca Lake, Puerto Rico, Oct. 9, 2017. The operation will provide potable water for residents in nearby Isabela. The soldiers are assigned to the 973rd Quartermaster Company, 346th Transportation Battalion, 166th Regional Support Group, 1st Mission Support Group. Army photo by Pvt. Alleea Oliver SHARE IMAGE: Download Image: Full Size (3.38 MB) Tags: Huricane Maria, DoD Hurricane Relief, Soldiers, Army, Northcom, Northern Command, reserve, Humanitarian Relief Photo By: Pvt. Alleea Oliver VIRIN: 171009-A-PF443-0002C.JPG Photo Gallery