Uranium miner Peninsula Energy has received a key US regulatory approval to start the production at the Lance Projects in Wyoming.

The US Environmental Protection Agency (EPA) has approved an aquifer exemption surrounding the deep disposal well (DDW) at the Ross Permit Area of the Lance Uranium projects.

EPA has given aquifer exemption saying that it does not currently serve as a source of drinking water, and it is located at a depth or location which makes recovery of water for drinking water purposes economically or technologically impractical.

In June this year, Peninsula wholly owned subsidiary Strata Energy has completed the DDW to a depth of 8,607ft at the RPA.

The company also submitted a revision to the existing aquifer exemption request to the Wyoming Department of Environmental Quality (WDEQ) to include a portion of the Flathead aquifer that surrounds the DDW.

Based on the information, EPA approved "a non-substantial program revision to include exemption of a portion of the Flathead formation surrounding the Ross DDW".

Peninsula managing director and CEO Gus Simpson said: "The EPA deep disposal well aquifer exemption clears a significant regulatory milestone for the commencement of production at the Lance Projects."