The Nevada Supreme Court held, 4-3, that the state's top water official had authority to approve a groundwater management plan (GMP) that deviated from the doctrine of prior appropriation for the over-appropriated Diamond Valley Hydrologic Basin. Senior rights holders in the basin sought to invalida...

The Ninth Circuit granted in part and denied in part a petition to review EPA's determination that glyphosate did not pose "any unreasonable risk to man or the environment." Nonprofit groups challenged the Agency's determination, arguing that EPA did not adequately consider whether the weedkiller ca...

The D.C. Circuit upheld FERC's approval of a dam operator's flood protection plan for a nearby water pump station in North Carolina. A city petitioned for review of FERC's approval of the plan, a state-imposed condition of its water quality certification under the CWA, which involved raising the pum...