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Fate and Transport of Metals and Sediment in Surface Water
EPA Grant Number: R829515C002Subproject: this is subproject number 002 , established and managed by the Center Director under grant R829515
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites
Center Director: Shackelford, Charles D.
Title: Fate and Transport of Metals and Sediment in Surface Water
Investigators: Julien, Pierre , Bledsoe, Brian P. , Watson, Chester
Current Investigators: Julien, Pierre , Bledsoe, Brian P. , Stein, Otto , Watson, Chester
Institution: Colorado State University
Current Institution: Colorado State University , Montana State University - Bozeman
EPA Project Officer: Lasat, Mitch
Project Period: November 1, 2001 through October 31, 2003
Project Amount: Refer to main center abstract for funding details.
RFA: Hazardous Substance Research Centers - HSRC (2001)
Research Category: Hazardous Waste/Remediation
Description:
Objective:This effort will focus on surface water and sediment transport, with an emphasis on the fate and transport of metals in rivers from mining wastes. The main thrust of this two-year proposal is to: 1) develop a predictive scientific methodology for evaluating impacts on resulting from both point and diffuse sources of metal pollution; and 2) improve and develop computer modeling tools for the simulation of point-source and non-point source metals and fine sediment contamination in surface waters. The ultimate goal of our research is to improve our mechanistic understanding of the interaction between heavy metals and fine sediment.
Approach:The study entails: 1) field monitoring of contaminated streams; and 2) computer modeling of advection, mixing and dispersion of fine sediment and heavy metals from point and diffuse sources. The models will be calibrated and tested with field data at a few sites on the 303(d) List. One of the main hypotheses to be tested is the relative importance of riffles and pools in the detention and storage of contaminants and as a potential added mechanism for the dispersion of contaminants in mountain streams. Other sites will be determined in collaboration with the remediation and risk assessment groups of this center proposal, as well as with the Water Quality Control Division of the Colorado Department of Public Health and Environment.
Expected Results:The two most important expected benefits of this research are: 1) an improved understanding of the mechanics of heavy metal fate and transport in mountain streams; and 2) development and validation of numerical models for the simulation of advection, mixing and dispersion of fine sediment and heavy metals in mountain streams. Field measurements will be used to calibrate and test numerical models at several sites where the water quality has been altered by mining waste contamination. Funding is requested to support two graduate students to be supervised by three academic faculty members for a period of two years.
Supplemental Keywords:streams, water, watersheds, sediments, metals, discharge, effluent, dissolved solids, restoration, aquatic habitat, modeling, monitoring, heavy metals, Rocky Mountains. , Industry Sectors, Scientific Discipline, Waste, RFA, Remediation, Ecological Risk Assessment, Hazardous Waste, Environmental Engineering, Contaminated Sediments, Hazardous, Mining - NAIC 21, Ecology and Ecosystems, heavy metal contamination, heavy metals, risk assessment, runoff, treatment, mining impacted watershed, contaminated waste sites, mining, mining wastes, stream ecosystems, acid mine runoff, acid mine drainage, groundwater, metal release, remediation technologies, contaminant transport, computer modeling, leaching of toxic metals, metal wastes, aquatic ecosystems, metals, sediment transport, field monitoring, contaminated marine sediment, metals-contaminated soil
Progress and Final Reports:
2002 Progress Report
2003 Progress Report
Main Center Abstract and Reports:
R829515 HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites