Uranium Health Studies:
Environmental Assessments

• Abandoned ("inactive") uranium mills —
  • Reclamation completed at 4 Navajo sites: Shiprock, Monument Valley, Mexican Hat, Tuba City
  • Groundwater restoration continuing at all 4 sites
  • Remediation finished, groundwater restoration continuing at UNC-Church Rock Mill (a USEPA Superfund site)
• Puerco River —
  • 20+ years mine dewatering; July '79 tailings spill (largest release, by volume, of radioactive wastes in U.S. history)
  • Radionuclide levels elevated in runoff (USGS, 1994); difficult discerning mining effects from natural runoff

For further information contact Uranium@sric.org

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