Here is the opinion in Hopi Tribe v. United States.
An excerpt:
The Hopi Tribe filed suit against the United States in the Court of Federal Claims seeking damages to cover the cost of providing safe drinking water on the Hopi Reservation. In order to invoke the trial court’s jurisdiction, the Hopi Tribe must identify a statute or regulation imposing a specific obligation on the United States to provide adequate drinking water that would give rise to a claim for money damages. Because the Court of Federal Claims properly concluded that the Hopi Tribe failed to identify any source for a money-mandating obligation, we affirm
Briefs:
Lower court materials here.
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