Scion is to investigate the feasibility of remediating treated timber with government funding of $163,000, Associate Environment Minister Scott Simpson announced today. Chromated copper arsenate (CCA) is a preservative for timber that has been commonly used in New Zealand since the 1950s. However, CCA-treated timber becomes a hazardous waste material when sent to landfill, that can leach arsenic into the ground. “To date, there have been no practical remediation options available to this problem, so I am delighted that Scion believes they may have one and that I am able to support them in testing its feasibility,” Mr Simpson says.…