The facts about CCA-treated timber. A boardwalk constructed from CCA-treated timber This comprehensive fact sheet provides consumers with up-to-date information and advice about timber treated with Australia’s most widely used wood preservative, copper chromium arsenic (CCA). 28 October 2008 | Updated 14 October 2011 Restrictions and regulations.
Former gasworks sites. 0 - Koppers. Environment Protection Heritage Council.