Inicio Mesa Water History: Water Issues Study Group Mesa Water History: Water Issues Study Group Posted: Monday, January 4, 2021 In 1986, Mesa Water started the Water Issues Study Group (WISG) to further its commitment to provide water education and resources to its community. This adult educational program, hosted by the District’s Board of Directors, was open to customers interested in learning more about groundwater. Decades later, the study group has grown significantly and provided information about water history, water quality, and other important water issues to hundreds of community members. Learn more about WISG and future dates here.