Amid the river’s worst water year on record and deadlocked negotiations over its future, the Bureau of Reclamation announced it will impose a new 10-year management plan if the states relying on the river don’t come to an agreement.By Wyatt MyskowBOULDER, Colo.—The federal government will impose a 10-year operating framework for managing water use in the Colorado River Basin by the end of this summer if the seven states that rely on the river cannot come to an agreement before then, said Scott Cameron, acting commissioner for the Bureau of Reclamation, at a water conference Thursday.