Slide presentation by William H. Clements describing a 22-year monitoring program on the Arkansas River, Colorado. Covers declines in metal concentrations after remediation, biological responses (macroinvertebrates, brown trout), stream microcosm experiments to define safe metal levels, and how hydrology and climate change may affect recovery. Ends with practical monitoring and study design recommendations.
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Presentation
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Authorship (William H. Clements) and study details (22-year Arkansas River dataset, 1989–2011) are visible in the slides. No explicit presentation date or event is shown in the PDF. All summary points are drawn from slide content; recommend checking the original source for a publication or presentation date if needed.
