metal concentrations / magnetic resonance imaging / due mining districts / historical metal / downstream site / metal complexing agent / chemical analyses / historical mining districts / chemical constituents / historical hardrock mining / metal sodium / /
NaturalFeature
Saint Vrain Creek / U.S. Streams / Boulder Creek / Boulder Canyon / Coal Creek / CONCLUSIONS Rivers / /
Organization
U.S. Department of Agriculture / Colorado Department of Public Health / Water Quality Control Division / University of Colorado / Department of Health / U.S. Department of the Interior U.S. Geological Survey WWTP / National Agricultural Statistics Service / /