Sampling in Mine Drainage—Looking for Solute Inflows to Streams with Questions on Hyporheic Mixing

U.S. Geological Survey (USGS) scientist Dr. Kenneth E. Bencala gave a seminar entitled "Sampling in Mine Drainage—Looking for Solute Inflows to Streams with Questions on Hyporheic Mixing" Menlo Park, California, May 10, 2007. The seminar described the challenges that scientists face when trying to characterize in-stream solute loading and identifying near-stream, sub-surface solute sources. There is a need to quantitatively define the character and source of solutes entering mountain streams from subsurface pathways. Tracer-injection and synoptic sampling approaches provide tools for making operational estimates of solute loading in streams affected by abandoned mine lands. The seminar was part of the USGS's biweekly Water Resources Discipline Research Seminar Series. Dr. Bencala conducts research on the biogeochemical and hydrological processes that control the transport and fate of contaminants in mountain streams. A streaming video of the seminar is available.

Contact

• Kenneth E. Bencala, USGS,

Seminar Information

• Streaming Video of Seminar (requires Windows Media Player^© — Instructions)
• Archive of Past Seminars Videos

More Information

• Coupled Transport and Geochemical Processes Determining the Fate of Chemicals in Surface Waters
• Watershed Contamination from Hard-Rock Mining Issue Based Research
• Hard Rock Mining Contamination in Rocky Mountain Terrain -- Upper Arkansas River, Colorado

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• Handbook on Permeable Reactive Barriers Published - The handbook gives guidance on the use of permeable reactive barriers to remediate radionuclide, trace metal, and nutrient contamination.
• Nature's Way of Cleaning Up Mining-Contaminated Streams
• Cleaning up Contamination in Hard Rock Mine Lands
• Tracer Tests Steer Cleanup of Mined Watersheds

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