Diné Uranium History

(continued)

• Health Impacts —
  — Excess lung cancer, nonmalignant respiratory diseases in
       Navajo underground miners
  — Few population health studies, many community concerns
• Environmental Impacts —
  — >1,100 mines, 4 mills abandoned late-'50s to early-'80s
  — Active mining, milling in Grants area, 1950 thru mid-'80s
  — Church Rock Dam Break, Tailings Spill July '79
• Law and Policy Initiatives —
  — UMTRA cleanup program enacted in 1978
  — RECA enacted in 1990; RECA amendments, 2000
  — Executive Order Moratorium issued 1992