The government's new radioactive waste storage facility in Fukushima Prefecture kicked into full gear on Saturday after completing a roughly four-month trial run.

While the facility near the crippled Fukushima No. 1 nuclear complex is designed to store soil and other tainted waste collected during decontamination work for up to 30 years, it remains only half complete six years after the triple core meltdown struck in March 2011.

An estimated 22 million cu. meters of contaminated waste exists in Fukushima, but the facility does not yet have enough capacity to store it all, and residents fear it will sit there permanently in the absence of a final disposal site.

The government has been able to buy only 40 percent of the land so far but eventually plans to secure 1,600 hectares for the facility, which is expected to generate ¥1.6 trillion ($14.1 billion) in construction and related costs.

The storage facility is urgently needed to consolidate the 13 million cu. meters of radioactive waste scattered around the prefecture. The prolonged disposal work, among other concerns, is said to be keeping residents away from their hometowns even when the evacuation orders are lifted.

Also on Saturday, the government began full operation of a facility where waste intended for incineration, such as trees and plants, is separated from the rest.

Contaminated soil is sorted into different categories depending on cesium level before storage.