( July 9, 2024, 8:43 AM EDT) -- PHOENIX — A copper mine shaft constructed in 2014 does not require a new National Pollutant Discharge Elimination System (NPDES) permit because it is integrated into previous elements of an existing mine and is not considered a “new source” under the Clean Water Act (CWA), the Arizona Supreme Court found in partially vacating a state appellate court’s judgment....