National Risk Management Research Laboratory (U.S.) Superfund Innovative Technology Evaluation Program (U.S.) text Cincinnati, Ohio : National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, [2002] eng "SITE, Superfund Innovative Technology Evaluation"--Cover. "December 2002." "EPA/540/R-02/506." Includes bibliographical references. Constructed wetlands. Zinc--Environmental aspects. Mine drainage--Environmental aspects. Mine water--Recycling. Water--Purification. Also available in digital form. http://hdl.loc.gov/loc.gdc/scd0001.00114085303