Plant Manager Dennis Clark says testing at the biodiesel plant in downtown Keokuk could get underway in a couple of weeks.
He says that process will continue until the equipment is up to speed, as it sat idle for several years.
The same company (W2 Fuel that owns the former Tri-City Energy plant in Keokuk has a similar facility in Crawfordsville, Iowa.
Clark says the hiring process is underway at both locations.
The relatively warm weather in recent weeks has benefited Keokuk's new water tower.
The structure behind the former Lincoln Elementary School in Keokuk can hold four-million gallons of water.
Waterworks General Manager Bill Cole says the water tower first went online just before Christmas. He says it was not placed in full service, though, until last Friday.
Cole says the time in between allowed for electrical work to be completed and equipment to be tuned. He says those processes were aided by the lack of freezing temperatures.