Tag: Ninth Circuit

Injection Well Operators Beware: Ninth Circuit Finds Underground Injection Wells Require NPDES Permit under the Federal Clean Water Act

On February 1, 2018, the U.S. Court of Appeals for the Ninth Circuit upheld the district court’s decision, finding that the County of Maui violated the Clean Water Act (“CWA”) when it discharged treated effluent into underground injection wells, which then allowed the effluent to seep into the Pacific Ocean.  The Ninth Circuit panel held … Continue Reading

Tribes’ Federal Water Rights Include Groundwater—But How Much?

Co-authored by Wes Miliband and guest-blogger Hayley K. Siltanen The Ninth Circuit recently ruled that federal reserved water rights held by Indian tribes extend to groundwater underlying reservation lands. Determining the quantity of that groundwater, however, is reserved for another day. In Aqua Caliente Band of Cahuilla Indians v. Coachella Valley Water District, the Ninth … Continue Reading