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Rule 13 Chemical processes

Rule 13 Chemical processes

Updated 3 July 2015 12:56pm

The discharge of contaminants into air from an industrial or trade premises in connection with:

(1)any process involving the manufacture or other processing of chemicals;

is a Permitted Activity, provided it complies with the conditions below, and excluding any discharges of contaminants to air arising from:

(a)the emission of any hazardous air pollutants listed in Appendix 1;

(b)any electroplating process;

(c)the bodying of oils or manufacture or reaction of monomers for production of synthetic resins, varnishes, and plastics;

(d)the production of soap, grease, detergents, and surface active agents;

(e)the synthesis or extraction of organic chemicals, including formulation of agrichemicals, plant hormones, and like toxic organic compounds;

(f)the production of inorganic chemicals, including concentration of acids and anhydrides, ammonia, and alkalis;

(g)the production of synthetic fertilisers, including granulation of single or mixed fertilisers; or

(h)solvent recovery processes.


The person(s) responsible for the activity shall ensure that:

(i)there is no discharge of particulates of a concentration greater than 250 mg/m (at STP), measured at the point of discharge;

(ii)there is no smoke, dust, odour, gas, or vapour from the process, which is noxious, dangerous, offensive or objectionable at or beyond the boundary of the property; and

(iii)the discharge to air is vented through a chimney(s) or vent(s) which discharge at a point which terminates at least three metres above the level of any adjacent area to which there is general access (i.e., ground level, roof areas or adjacent openable windows).

Explanation: Rule 13 relates to the discharge of contaminants to air from processes involving the manufacture or processing of chemicals. Rule 13 applies to discharges from industrial or trade premises only. This Rule permits processes relating to chemical manufacture, subject to compliance with the specified conditions.

Rule 13 explicitly excludes a range of chemical processing activities from the permitted activity class. These activities, listed in (a)-(h), when undertaken as part of an industrial or trade process, are discretionary activities, requiring a resource consent under Rule 23.

The conditions in Rule 13 require that there is no discharge of particulates of a concentration greater than 250 mg/m 3 (at STP), measured at the point of discharge, that there are no offensive, objectionable, dangerous or noxious discharges, and that discharges are vented through a chimney(s) or vent(s).