New Mexico high court to hear arguments over pollution rule

SANTA FE, N.M. (AP) – The New Mexico Supreme Court will hear oral arguments next month in a case over contested water regulations that address groundwater pollution by copper mines.
Attorneys for the state and environmental groups will make their case regarding the so-called copper rule on Sept. 28.
The rule was initially approved by water regulators in 2013.
The New Mexico Environment Department argues the regulations are among the most stringent of any copper-producing state in the West