Local governments are looking to enact their own mining regulations as Gov. Scott Walker prepares to lift Wisconsin’s nearly 20-year ban on gold and silver mining, saying they want to protect the environment and make sure taxpayers don’t have to clean up any potential damage. Walker voted for the mining moratorium when he was in the state Assembly in 1998 but is expected to sign a new Republican-backed bill that would lift the prohibition and relax other mining regulations. The measure comes as Aquila Resources Inc. is considering mining ore deposits in Taylor and Marathon counties. The company has been eyeing the deposits since 2011 but hasn’t filed any formal permit applications. It didn’t respond to messages seeking comment.