NEVADA STATE ENVIRONMENTAL COMMISSION
REGULATORY PETITION REGISTRY & DOCUMENT ACCESS
Petition No. P2006-12 10/31/07

LCB File No. R141-06

Nevada Administrative Code: NAC 445A.430

Description of Petition: This regulation would amend NAC 445A.430 by focusing stabilization of spent ore on effluent chemistry levels rather then dictating a particular stabilization action or method (e.g., rinsing). The existing language in the regulation does not reflect the changes and advancements in spent ore stabilization methods and technologies that have occurred since the regulation was first promulgated. The proposed changes are designed to broaden spent ore stabilization options for spent ore that has been left on pads, or which will be remove from pads. The amended regulation will continue to require that spent ore effluent demonstrate Cyanide and pH stability levels in accordance with existing regulatory limits.

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