|The Physical Object|
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And it raised the specter that uranium mining in the Colorado River Basin may be endangering Arizona's Lake Mead, and with it the drinking water of Las Vegas, Los Angeles, and much of Arizona. Except for the bomb tests, Church Rock was probably the biggest . Particulate, colloidal, and dissolved-phase associations of plutonium and americium in a water sample from well at the Rocky Flats Plant, Colorado / (Denver, Colo.: U.S. Dept. of the Interior, U.S. Geological Survey: Earth Science Information Center, Open-File Reports Section [distributor], ), by R. A. Harnish, J. F. Ranville, Diane. minimizing interstate water pollution prob lems. In , on recommendations from the conferees, the project began detailed studies of the mineral quality problem in the Colorado River basin. Mineral quality, commonly known as salinity, is a complex basinwide problem that has become crit ically important to users of lower Colorado River water. The Hardest Working River in the West: Common-Sense Solutions for a Reliable Water Future for the Colorado River Basin Identifies five innovative solutions that could eliminate Western water shortages stemming from the over-taxed and stressed Colorado River and meet the water needs of the West's business, agricultural and growing population.
The Colorado River, which supplies roughly 90 percent of Southern Nevada's drinking water, was called the most endangered river in the nation by an environmental group today. the Colorado River system to meet future Basin resource. 5. needs are even more apparent, given the likelihood of increasing demand for water throughout the Basin coupled with projections of reduced supply due to climate change. It was against this backdrop that the Colorado River Basin Water Supply and Demand Study (Study) was conducted. Radioactivity in the Environment A Case Study of the Puerco and Little Colorado River Basins, Arizona and New Mexico By LAURIEWIRT U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 94 Prepared in cooperation with the OFFICE OF NAVAJO AND HOPI INDIAN RELOCATION Tucson, Arizona Cited by: 5. This is a common way for remote ecosystems to become contaminated, says the USGS team. As for the selenium, they believe pollution from upstream sources is the culprit. "Irrigation of selenium-rich soils in the upper Colorado River basin contributes much of the selenium that is present in the Colorado River in Grand Canyon," say researchers.
Significant changes have been made in the long range goals and objectives of the Colorado River Basin Project on Water Quality Control. The scope has been changed from the development of a comprehensive program to investigation of the critical and pressing interstate pollution problems which may exist now or in the future in the Basin. The major use of water is irrigation, but transmountain diversions provide water to more than 1 million people in the eastern part of Colorado (outside of the study area). Stream and River Highlights Streams and rivers in the Upper Colorado River Basin (UCOL) are . More than half of the streamflow in the Upper Colorado River Basin originates as groundwater, according to a new U.S. Geological Survey study published today in the journal Water Resources Research.. The entire Colorado River Basin currently supports 50 million people, and that amount is expected to increase by 23 million between and The many threats the Colorado River faces led American Rivers to designate the Colorado River as “America’s Most Endangered River” in April Over-allocation of water from the River by water managers in western states has depleted Lake Mead, a reservoir on the River, to levels not seen since Hoover Dam was completed.