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In this April 9, 2016 photo, water plant workers hold up water samples, before and after treatment, at the newest sewage treatment plant in Niteroi, Brazil. In Niteroi, 95 percent of sewage is treated, unlike Rio de Janeiro, just 5 miles (8 kilometers) across the bay, which has broken promises to fix its sewage problem in time for the upcoming Summer Games. Officials now say Rio's water won't be cleaned up until 2035. (AP Photo/Felipe Dana)
Associated Press | June 5, 2016 9:02 pm
When Rio fails, sister city shows sewage cleanup possible