Los Angeles Times

North Carolina environmental regulators acknowledged Sunday that they had erroneously reported results of early toxic tests in the Dan River after a huge coal ash spill, specifically, that arsenic was within safe levels.

The North Carolina Department of Environment and Natural Resources said it had incorrectly reported that results of water samples taken Feb. 3 were within state standards for arsenic, a toxic heavy metal. In fact, the agency said, two samples exceeded the standard of 10 micrograms per liter.

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