Investigation finds more than 80 dams could flood communities with toxic waste if they failed

Where a dam failure would pose a significant risk to communities due to toxic waste sites, according to Undark analysis

An investigation has identified more than 80 dams in 24 states that could flood local areas with toxic waste if they failed. The risks these dams pose to toxic waste sites are mostly unrecognized by government agencies, according to interviews with dam safety, environmental and emergency officials, leaving communities nationwide vulnerable to such disasters, James Dinneen and Alexander Kennedy report for Undark.

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