New Warnings About Toxic Rivers

Contaminated water is traveling through Utah and New Mexico.
3:00 | 08/12/15

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Transcript for New Warnings About Toxic Rivers
New warnings, new outrage tonight in Colorado and new Mexico after that massive spill in the animas river. Those haunting images, 100 miles, stretching nearly to the grand canyon now, contaminated with 3 million gallons of toxic water. These images tonight of the river before and after, the accident triggered by the EPA, the water glowing yellow. Now officials warning that heavy rain moving in expected to stir up the toxins in the water. ABC's Clayton Sandell along the river tonight. Reporter: Colorado's river is seeing red. It is unacceptable. Reporter: 3 million gallons of toxic waste water turned the animas river from this to this. Today the environmental protection agency promised an investigation into how its own cleanup crew released this sludge from a mine. Develops of toxins in the water like lead and arsenic skyrocketed. Dropping now, and most of the Orange color is gone, but the water is still not safe. The animas and now the San Juan river in New Mexico are striblthly off limits as the plume travels downstream from Colorado all the way to Utah and lake Powell, a major reservoir for drinking water. Biologist Scott Roberts is racing to help understand what the plume is doing to wildlife. After 100 hours, these insects, at least, are still alive. Reporter: David, there may still be long-term health affects for wildlife and people. Tonight it's supposed to rain here which means some of this toxic residue may wash back into the river. Pollution the EPA add administrator will see for herself. Major developments in that

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