LENEXA, Kan. (AP) — The Environmental Protection Agency says it’s working to remove hazardous chemicals from a laboratory facility in suburban Kansas City.

The EPA’s regional office says in a release that it will begin work next week at the abandoned Beta Chem Laboratory facility in Lenexa, Kansas. The federal agency says work at the site will take about a month.

Beta Chem used the facility for medical research involving radioactive carbon. The EPA says the company failed to follow directions from the Kansas Department of Health and Environment to attain compliance with its Radioactive Materials License.

KDHE seized the facility in 2013 and referred the facility to the EPA.