stephanie: in previous lawsuits, homestake mining company has denied that its facilities are causingt is now trying to absolve itself of further responsibility. mark: barrick gold and homestake are now trying to to be done with clean up, to get exemptions from the government to change the regulatory standards at the site so they can kind of wash their hands of it, hand it over to the department of energy and have it now be the federal government's problem. >> united states regulators can't possibly think this is ok. stephanie: in the meantime, some, including candace head-dylla have agreed to take buyout offers from homestake. candace: we trusted the federal government. we really thought that once they said this is going to be cleaned up, that it would be. stephanie: candace is jonnie's daughter, the woman we met at the beginning of this story. she moved to colorado in 2019. it wasn't an easy decision -- leaving both her parents and her dream house in the murray acres subdivision behind. candace: this is my mom, my two grandmas. this i outside, the barn in the tailings piles right ov