This emergency administrative order is issued to the Bureau of Reclamation for violations at the Ft. Yates Water System. EPA has determined that conditions exist at Respondent's public water system that may present an imminent and substantial endangerment to the health of persons. Such conditions include a loss of presure in the distribution system, which may cause a net movement of water from outside the pipe to the inside through cracks, breaks, or joints in the distribution system that are common in all water systems. Such system failures carry a high potential that fecal contamination or other disease causing organisms could enter the distribution system.