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Gold King Mine Data, August 30, 2015

Data from Gold King Mine Response

EPA sediment samples for August 11 and 19, 2015 were collected from 10 locations in the Animas River.

EPA sediment samples for August 13 and 14, 2015 were collected from 17 locations in the Animas River.

EPA sediment samples for August 16 and 18, 2015 were collected from 2 locations in the Animas River.

EPA has done a review of the data which included a comparison to screening levels for exposure during recreational use to determine if metal concentrations are consistent with pre-event levels.

Based on the results of the sediment samples, sediment concentrations are trending toward pre-event conditions.


EPA sediment samples were collected on August 23, 25, 26 and 27, 2015, at locations along the Animas and San Juan Rivers.

EPA has done a review of the data which included a comparison to screening levels for exposure during recreational use to determine if the metal concentrations are consistent with pre-event levels.

Based upon the sediment sampling results, sediment sample concentrations are trending toward pre-event conditions.


EPA surface water samples for August 7, 8, 9, 10, 11, 12 and 13, 2015 were collected from eight locations in the Animas River.

EPA has done a review of the data which included a comparison to screening levels for exposure during recreational use to determine if metal concentrations are consistent with pre-event levels.

Based on the results of the surface water samples, surface water concentrations are trending toward pre-event conditions.


EPA surface water samples were collected August 23, 24, and 25, 2015, at locations along the Animas and San Juan Rivers.

EPA has done a review of the data which included a comparison to screening levels for exposure during recreational use to determine if the metal concentrations are consistent with pre-event levels.

Based on surface water sample results, surface water concentrations are trending toward pre-event conditions.

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