Water Quality is a former Division B and Division C event which tests students' ability to identify marine coral reef indicator organisms and their knowledge on indicators affecting estuarine and marine water quality. Topics that may be included in the testing are aquatic ecology, the water cycle, nutrient cycling, aquatic chemistry, potable water treatment, waste water treatment, aquatic food chains and webs, community interactions, population dynamics, watershed resource management issues, sedimentation pollution, harmful species, marine biology and ecology, coral reef flora and fauna (as well as general ecology) and estuary ecology. The event returned for the 2020 and 2021 seasons with a focus on marine and estuary aquatic environments. For more information on this subtopic, see Water Quality/Marine and Estuary.
