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Effects Of A Beaver Pond In Southwestern Montana On Metals Concentration And Loads, William J. Drury, Martin Lorenzo
Effects Of A Beaver Pond In Southwestern Montana On Metals Concentration And Loads, William J. Drury, Martin Lorenzo
Environmental Engineering
A 400-m2 beaver pond on Cabbage Gulch (Deer Lodge County, MT) was investigated for its retention of total recoverable (TR) and dissolved arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), zinc (Zn), and total suspended solids (TSS) during three storm water runoff events in the summer of 2013. Water samples were collected and flow rates were measured at monitoring stations above and below the pond. Decreases in TR metals concentrations were -17 percent for As (that is, As concentrations increased), 10 percent for Cu, 7 percent for Pb, and 27 percent for Zn. Total recoverable metals retained in the …