Church Rock uranium mill spill
http://dbpedia.org/resource/Church_Rock_uranium_mill_spill an entity of type: SpatialThing
The Church Rock uranium mill spill occurred in the U.S. state of New Mexico on July 16, 1979, when United Nuclear Corporation's tailings disposal pond at its uranium mill in Church Rock breached its dam. The accident remains the largest release of radioactive material in U.S. history, having released more radioactivity than the Three Mile Island accident four months earlier.
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El Derrame del Molino de Uranio de Church Rock ocurrió en Nuevo México, Estados Unidos, en 1979 cuando la piscina de desechos de relaves del molino de uranio de la en Church Rock rompió su dique. Sobre 1.000 toneladas de desechos radiactivos del molino y millones de litros de aguas residuales de la mina se escaparon hacia el , y estos contaminantes viajaron 80 millas (129 km) corriente abajo hasta el Condado de Navajo, Arizona. Los residentes locales usaban el agua del río para irrigación y para el ganado y no se dieron cuenta inmediatamente del peligro causado por esta contaminación.
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Church Rock uranium mill spill
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Derrame del molino de uranio de Church Rock
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UNC Church Rock
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23637218
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United Nuclear Corporation Church Rock mill site after clean-up
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NMD030443303
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1998-08-29
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1983-08-08
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USA New Mexico
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1982-12-30
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The Church Rock uranium mill spill occurred in the U.S. state of New Mexico on July 16, 1979, when United Nuclear Corporation's tailings disposal pond at its uranium mill in Church Rock breached its dam. The accident remains the largest release of radioactive material in U.S. history, having released more radioactivity than the Three Mile Island accident four months earlier. The mill, which operated from June 1977 to May 1982, was located on privately owned land about 17 miles (27 km) north of Gallup, New Mexico, and was bordered to the north and southwest by Navajo Nation Tribal Trust lands. The milling of uranium ore produced an acidic slurry of ground waste rock and fluid (tailings) that was pumped to the tailings disposal area. The breach released more than 1,100 short tons (1,000 t) of solid radioactive mill waste and 94 million US gallons (360,000 m3) of acidic, radioactive tailings solution into the Puerco River through Pipeline Arroyo. An estimated 1.36 short tons (1.23 t) of uranium and 46 curies of alpha contaminants traveled 80 miles (130 km) downstream to Navajo County, Arizona, and onto the Navajo Nation. In addition to being radioactive and acidic, the spill contained toxic metals and sulfates. The spill contaminated groundwater and rendered the Puerco unusable to local residents, mostly Navajo peoples who used the river's water for drinking, irrigation, and livestock. They were not warned for days of the toxic dangers from the spill. The Governor of New Mexico Bruce King refused the Navajo Nation's request that the site be declared a federal disaster area, limiting aid to affected residents. The nuclear contamination event received less media coverage than that of Three Mile Island, possibly because it occurred in a very rural area not served by major media. The spill also happened in Native American country, among a community that at that time were not predisposed to speaking out. In 2003, the Churchrock Chapter of the Navajo Nation began the Church Rock Uranium Monitoring Project to assess environmental impacts of abandoned uranium mines; it found significant radiation from both natural and mining sources in the area. The EPA National Priorities List currently includes the Church Rock tailings storage site, where "groundwater migration is not under control."
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El Derrame del Molino de Uranio de Church Rock ocurrió en Nuevo México, Estados Unidos, en 1979 cuando la piscina de desechos de relaves del molino de uranio de la en Church Rock rompió su dique. Sobre 1.000 toneladas de desechos radiactivos del molino y millones de litros de aguas residuales de la mina se escaparon hacia el , y estos contaminantes viajaron 80 millas (129 km) corriente abajo hasta el Condado de Navajo, Arizona. Los residentes locales usaban el agua del río para irrigación y para el ganado y no se dieron cuenta inmediatamente del peligro causado por esta contaminación. En términos de la cantidad de radiación liberada, el accidente fue comparable en magnitud al accidente de Three Mile Island ocurrido ese mismo año. Ha sido caracterizado como el accidente radiactivo más grande en la historia de Estados Unidos, pero el gobernador rechazó la solicitud de la Nación Navajo de que el sitio fuera declarado un área de desastre federal. El evento recibió menos atención de la prensa de lo que lo pasó con Three Mile Island, probablemente debido a que ocurrió en un área rural ligeramente poblada; algunos investigadores han sugerido que hubo aspectos de clase y raciales involucrados, dado que el evento afectó principalmente a nativos americanos pobres. En 2003 el capítulo de Churchrock de la 'Nación Navajo' inició el proyecto de monitoreo de uranio de Church Rock para evaluar los impactos ambientales de las minas de uranio abandonadas; este encontró significativa radiación tanto de fuentes naturales como de actividades mineras en el área.
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Metals, radionuclides
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37515
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