Photo: Testing water from San Juan River (AP Photo)

Ben Brown, with the Utah Department of Environmental Quality, left, collects a water sample from the San Juan River from hydrologic technician Ryan Parker, Tuesday, Aug. 11, 2015, in Montezuma Creek, Utah. A spill containing lead and arsenic from the abandoned Gold King Mine in Silverton, Colo., leaked into the Animas River, which flows into the San Juan River in southern Utah, on Aug. 5.