On January 26, 2006, Hecla Mining Company, Lucky Friday Unit (“Hecla”), filed a timely petition for review of the decision of U.S. EPA Region 10 (“Region”) to issue a final Clean Water Act (“CWA”) National Pollutant Discharge Elimination System (“NPDES”) permit, dated December 28, 2005 (the “2005 Permit”), to Hecla.