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The U.S. Geological Survey estimated in 2013 that “more than 100 million people in the United States, about 35 percent of the population . . . received their drinking water from public groundwater systems.” The U.S.
We audited the Bureau of Land Management's (BLM) mineral materials sales program to determine whether the U.S. Department of the Interior obtained market value for materials removed from Federal lands.
We investigated concerns that OIG auditors raised during an audit of costs claimed by an NPS contractor for hazardous materials remediation post Hurricane Sandy. The concerns were that some of the costs claimed by the contractor were excessive, and that labor time was improperly reported.