Ground-water contamination near a uranium tailings disposal site in Colorado

Ground Water
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Abstract

Contaminants from uranium tailings disposed of at an active mill in Colorado have seeped into the shallow ground water onsite. This ground water discharges into the Arkansas River Valley through a superposed stream channel cut in the resistant sandstone ridge at the edge of a synclinal basin. In the river valley, seasonal surface-water irrigation has a significant impact on hydrodynamics. Water levels in residential wells fluctuate up to 20 ft and concentrations of uranium, molybdenum, and other contaminants also vary seasonally, with highest concentrations in the Spring, prior to irrigation, and lowest concentrations in the Fall. Results of a simple transient mixing cell model support the hypothesis that lateral ground-water inflow, and not irrigation recharge, is the source of ground-water contamination.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Ground-water contamination near a uranium tailings disposal site in Colorado
Series title Ground Water
DOI 10.1111/j.1745-6584.1987.tb02884.x
Volume 25
Issue 5
Year Published 1987
Language English
Publisher Wiley
Contributing office(s) Pennsylvania Water Science Center
Description 10 p.
First page 545
Last page 554
Country United States
State Colorado
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