Federal officials are considering Evansville's proposal to correct drainage overflows by routing treated water into a new wetland.
Utility Director Allen Mounts tells the Evansville Courier & Press that the Environmental Protection Agency has technical questions about the plan to turn Bee Slough along Riverside Drive in an artificial wetland.
Mounts says the EPA is "intrigued" because the solution would be "green."
He says he expects a written response to the plan from the EPA within a few weeks. It isn't clear whether the agency with endorse the plan, which involves $540 million worth of projects over more than 20 years.
Combined sewer overflows occur when storm water and sewage drainage exceed a system's capacity. The waste water can end up in nearby rivers and tributaries, causing pollution.
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