VERO BEACH — Moving the city wastewater-treatment plant off the Indian River Lagoon is still very possible, but not yet definite. 

The city Utilities Commission Tuesday discussed ways to relocate the plant from the corner of 17th Street and Indian River Boulevard to the Vero Beach Regional Airport within the next few years.

The treatment plant is at the southeast corner of the three-cornered, city-owned property some residents want to see developed for community use.

The other two properties, the former power plant and the former Post Office annex, are no longer in use. Plans are to eventually dismantle the decommissioned power plant and move a substation to a portion of the Post Office annex property.

Voters must approve any future use of the three properties. 

Building a new treatment plant at the airport could cost up to $51 million, according to a study by Kimley-Horn and Associates and Reiss Engineering.