Department of the Interior, United States Geological Survey in cooperation with the state of Indiana, Department of Natural Resources and other state, municipal, and federal agencies
United States Geological Survey, Water Resources Division, in cooperation with the Arizona Water Commission and other state, municipal, and federal agencies
United States Geological Survey, Water Resources Division in cooperation with the Colorado Department of Natural Resources and other state, municipal, and federal agencies
Department of the Interior, United States Geological Survey in cooperation with the Massachusetts Water Resources Commission and other state and federal agencies
Department of the Interior, United States Geological Survey, in cooperation with the California Department of Water Resources and other state, municipal, and federal agencies