RENO, Nev. (AP) -- A state investigation is under way into why air pollution control devices were not properly placed at a mine outside Virginia City.
The Nevada Division of Environmental Protection ordered a one-week shutdown of Comstock Mining Inc.'s ore crushing operations in August after learning about the violation.
According to documents obtained by the Reno Gazette-Journal (http://on.rgj.com/19IngHP ), the agency took the action after an inspection revealed the ore crushing facility was functioning without required devices to prevent particulate air pollution.
Division spokeswoman JoAnn Kittrell says the order was lifted Aug. 23 after required pollution control gear was installed "pretty quickly," and the investigation will determine whether any penalties will be assessed against the company.
Comstock Mining CEO Corrado De Gasperis says the problem to a large extent stemmed from a simple misunderstanding, and the company "immediately fixed" it when notified by the state.