The Ninth Circuit has issued a new opinion in Northern California River Watch v. City of Healdsburg (No. 04-15442, Aug. 6, 2007).
The case involves the post-Rapanos standard for how “navigable waters of the United States” is defined in the Clean Water Act, and what wetlands are covered under the Act’s jurisdiction. The court summarized its decision, holding that the controlling test from the Rapanos plurality (4-4-1) decision is Justice Kennedy’s “significant nexus” test:
Healdsburg discharged the sewage into a body of water known as “Basalt Pond,” a rock quarry pit that had filled with water from the surrounding aquifer, located next to the Russian River.
The issue is whether Basalt Pond is subject to the CWA because the Pond, containing wetlands, borders additional wetlands that are adjacent to a navigable river of the United States. The district court held that discharges into the Pond are discharges into the