A state high court affirmed a lower court's summary judgment for the Montana Department of Environmental Quality in a challenge to the Department's issuance of a NPDES general permit for discharges from municipal separate storm sewer systems (MS4s). An environmental group challenged the permit, argu...

In an unpublished opinion, the Tenth Circuit vacated a district court's order enjoining BLM's Waste Prevention Rule, which restricted the venting and flaring of natural gas wells, pending finalization of a replacement rule that was undergoing public notice and comment. California, New Mexico, and en...