Gold King Mine Information

San Juan Basin Health Department
Animas River Health

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Gold King Mine 9/29/15 Adit Sampling Results

Due to constituent concerns, the Board of County Commissioners requested that additional sampling of certain non-metal and radionuclide occur  at the adit of the Gold King Mine.  Specifically, the Board was interested in learning about the presence and levels of nitrates,nitrites, ammonia, Total Kjeldahl, cyanide, chromium, dioxins and furans, polychlorinated biphenyls (PCBs), uranium and radium.  Two separate sampling events occurred.  On September 21, 2015 the EPA collected a split sample and on September 29, 2015, La Plata County collected a sample. None of the water quality analytes were detected with the exception of radium 226, radium 228 and uranium.  A narrative explanation of the results and the actual results may be found below.

Results of Expanded Adit Sampling at Gold King Mine

EPA Technical Evaluation of the Gold King Mine Incident - Link to the Document
EPA Action Memo - January 15, 2016

La Plata County Adit Report