An attorney cautioned the Trump administration Dec. 4 against rewriting the rule clarifying the reach of the Clean Water Act by relying solely on the late Justice Antonin Scalia‘s narrow reading of the law.

The administration should consider all U.S. Supreme Court decisions pertaining to the scope of the Clean Water Act jurisdiction, not just Scalia’s opinion, in redefining the rule, Deidre Duncan, a Washington–based attorney for Hunton & Williams LLP, said at a Clean...