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Topic: water treatment

FILE - In this Aug. 3, 2014, file photo, the City of Toledo water intake crib is surrounded by algae in Lake Erie, off the shore of Curtice, Ohio. Groups working to solve Lake Erie’s algae outbreaks agree that a key step will be targeting areas that are sending much of the algae-feeding phosphorus into the lake. (AP Photo/Haraz N. Ghanbari, File) (AP)

Algae is taking over Lake Erie

Maria Gallucci - Grist
Pittsburgh Water and Sewer Authority workers try to reach valves that control the flow of water in and out of Highland Park Reservoir No. 1 outside the membrane filtration plant in Highland Park neighborhood of Pittsburgh on Tuesday, Jan. 31, 2017. Tests by the state Department of Environmental Protection showed low levels of chlorine in water at a facility that draws water from the city’s Highland Park reservoirs. (Rebecca Droke/Pittsburgh Post-Gazette via AP)

Millions drank unsafe water

Agnel Philip, Elizabeth Sims, Jordan Houston, Rachel Konieczny