CARTHAGE, Mo. (AP) – The long-running cleanup of contaminated mining wastes in a southwest Missouri county has moved to another site but much work still needs to be done.

Since the cleanup began in 2007 in Carterville, about $100 million has been spent scraping mining byproduct and contaminated soil from about 2,000 acres in eastern Jasper County. The operation has recently shifted to western sections of the county.

Mark Doolan, manager of the cleanup for the U.S. Environmental Protection Agency, says about one-third of the acreage but more than half of the volume has been cleaned. He says the work will be faster now but it could take another 10 years.

The Joplin Globe reports between 6,000 and 7,000 acres still must be reclaimed.