Ronette Cooley watches as she fills containers with water at a city fire station in the Lawrenceville section of Pittsburgh where water buffaloes are available for the public on Wednesday, Feb. 1, 2017. The city set up over a dozen spots across town … to distribute potable water after 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, prompting the closure of nearly two dozen schools and a boil-water advisory for 100,000 customers of the Pittsburgh Water and Sewer Authority.