Chemicals in drinking water worry residents in Marana

It’s not clear when a half-dozen polluted wells serving more than one-third of the Marana water utility’s households will be cleaned up, town officials say.

Since late 2016, Marana Water Department officials have known that these wells contained levels of two kinds of chemical pollutants that are higher than those recommended by the Environmental Protection Agency.

The water utility now has a detailed plan for cleaning up the water. But it’s waiting for federal direction as to how thoroughly the water needs to be cleaned because of changing environmental standards.