Out of interest, what are the concentrations of total chromium and other metals/semi-metals etc.
Kind regards
Chris Dainton
Peak Environmental Solutions Limited
Unit 10, Aston Ind Estate, Parsons Lane, Hope, Hope Valley, Derbyshire, S33 6RB
http://peakenvironmentalsolutions.com/
http://peakenvironmentalsolutions.com/?page_id=691
http://www.linkedin.com/in/chrisdainton
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