WASHINGTON — Several conservative members of the Supreme Court criticized the Environmental Protection Agency today for heavy-handed enforcement of rules affecting homeowners after the government told an Idaho couple they can’t challenge an order declaring their future home site a “protected wetlands.”

Justice Antonin Scalia assailed the “high-handedness” of the environmental agency when dealing with private property, and Justice Samuel Alito described some of the EPA’s actions as “outrageous,” arguing that most people would say “this kind of thing can’t happen in the United States.”

The EPA said that Mike and Chantell Sackett illegally filled in most of their 0.63-acre lot with dirt and rocks in preparation for building a home. The agency said the property is a wetlands that cannot be disturbed without a permit. The Sacketts had none.