HOT SPRINGS – Park Magnet School fourth graders Liliana Boekhout, left, and Katrina Lambert prepare to conduct a water quality test in the Hot Springs Wastewater Treatment Plant lab under the guidance of Harold Mauldin, lab manager. The students toured the rest of the facility with Pretreatment Manager Dennis Brunson to gather information for a project on water resources and water pollution for the school’s upcoming 4th Grade Exhibition.