Rule 16 Abrasive blasting processes - both mobile and stationary
The discharge of contaminants into air in connection with:
(1)abrasive blasting processes;
is a Permitted Activity, provided it complies with the following conditions, and excluding any discharges of contaminants to air arising from:
(a)dry abrasive blasting.
The person(s) responsible for the activity shall ensure that:
(i)there is no over-spray, dust, odour, gas or vapour from the process which is noxious, dangerous, offensive or objectionable at or beyond the boundary of the property, or beyond 50 metres of the discharge when sited on public land;
(ii)all reasonable steps are taken to ensure minimal discharge of contaminants to water bodies;
(iii)so far as is practicable, all debris and used blasting materials is collected; and
(iv)all collected debris are stored and disposed of safely, preferably to a landfill holding the appropriate consents.
Note: Mobile abrasive basting activities can be considered for a "regional resource consent" (see section 5.1.4), allowing the operator to work throughout the Region subject to appropriate conditions.
Explanation:Rule 16 relates to the discharge of contaminants from abrasive blasting processes, whether or not undertaken with a mobile blasting unit. This Rule applies regardless of whether abrasive blasting is undertaken as part of an industrial or trade process. It applies also regardless of whether the blasting is from a mobile or stationary source. Abrasive blasting involves the projection of water (wet abrasive blasting) or sand and other materials (dry abrasive blasting) under high pressure for the purpose of cleaning or preparing surfaces.
Rule 16 permits wet abrasive blasting, subject to compliance with the specified conditions. Dry abrasive blasting is a discretionary activity covered by Rule 23, regardless of whether or not it is associated with an industrial or trade process, and regardless of whether it is from a mobile or stationary source.