From the Littleton Independent (Tom Munds):
The Littleton/Englewood Wastewater Treatment Plant hosted the event to mark World Water Monitoring Day that celebrated the 39th anniversary of the Clean Water Act. Schools around the area were invited to take part in the event and the charter school’s sixth-grade classes accepted. When they arrived, the students were divided into two groups. While one group was testing the water and searching for “critters” living in the South Platte River, the second group visited the wastewater treatment plant to view displays and demonstrations about a variety of water quality subjects After about an hour, the groups traded places.
More South Platte River basin coverage here.