[Bill Doig]

There’s a little section in the EEA Guide to work on poles and structures – Section 15.

[Rebeca Clifton]

Thanks Bill — those controls are consistent with what we currently have in place.

I’m also interested in how others are thinking about the level of chronic health risk overall, and whether health monitoring programmes (where used) include arsenic testing as a way of verifying that controls are effective over time.

Keen to hear different perspectives or approaches.

Thanks 🙂

[Stephen Small]

CCA is relatively inert once dried, so pose little risk on installed poles and crossarms (including sawdust and chips) so follow EEA Guide as per Bill’s answer – however the biggest risk is that when burned the CCA additives concentrate in the ash and burnt residue. All of our burnt poles are disposed of at approved hazardous waste disposal facilities.

if you are searching the Web NZ, Australia, and Scandinavia are the only major users of CCA treatment so research from those counties will be more substantive.

[Rebeca Clifton]

Thanks Stephen.