ONALASKA, Wis. (WKBT) -

Efforts to get the largest water well in Onalaska working full time again are moving along.

The City Council approved going forward with the design phase of a water treatment plant at Well No. 9 in the city.

Currently the well is rarely used due to a build up of Iron and Manganese in the water. Onalaska Assistant City Engineer said it's not a health concern but it can cause the water to taste funny or have a rust color to it.

The estimated $3.25 million project will put the well back into regular service and would likely extend the life of the other wells in the city.

A final design is due by the end of the year.