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University of Colorado at Boulder (2006)

Quantifying the effect of drought on transport processes controlling metal contamination in Peru Creek, an acid mine drainage stream

Wong, Jeffrey W.

Titre : Quantifying the effect of drought on transport processes controlling metal contamination in Peru Creek, an acid mine drainage stream

Auteur : Wong, Jeffrey W.

Université de soutenance : University of Colorado at Boulder

Grade : Master of Science (MS) 2006

Résumé
Peru Creek, located in Summit County, Colorado, is a mountain stream affected by acid mine drainage, due to the presence of several abandoned silver mines, the largest of which is the Pennsylvania Mine. The result is an acidic and metal-rich stream environment, unable to sustain aquatic life. Previous studies have shown that the Pennsylvania Mine is a significant contributor of dissolved metals in Peru Creek. A tracer experiment coupled with synoptic sampling was conducted along a 7-km stretch of Peru Creek in the drought year of 2002 to identify specific sources of metal loading. The study showed that the downstream reach spanning Warden Gulch was an important diffuse source of several dissolved metals. Two additional tracer experiments were conducted in 2004 and 2005, focusing on the Pennsylvania Mine and Warden Gulch areas, respectively, to further investigate metal loading during more representative hydrologic conditions.

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Page publiée le 20 mai 2011, mise à jour le 15 janvier 2019