A divided U.S. Supreme Court has limited the scope of the Clean Water Act by removing U.S. Army Corps of Engineers' jurisdiction over isolated waters and seasonal wetlands, such as vernal pools and ephemeral washes. Farmers, developers and property rights advocates hailed the ruling as an important limitation on intrusive federal regulation. Environmentalists decried the ruling as a step backward, although many observers said the decision's impact would not be as great in California because of extensive...