190627-M-MH051-0075.JPG - James Carter, with the city of Havelock’s waste water treatment plant, lowers a meter to test levels of certain substances in the water at Marine Corps Air Station (MCAS) Cherry Point, North Carolina, June 27, 2019. Tracking changes in water quality is important to maintaining the health and livelihood of Marines and Sailors on base, as well as civilians in the local area, who depend on clean, reliable water sources. Water quality checks are done once every week to test the chemical, physical, and biological characteristics of the surrounding surface waters to ensure they are safe and abide by regulations upheld by the MCAS Cherry Point Environmental Affairs Department. (U.S. Marine Corps photo by Cpl. Micha Pierce)