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Rule 17 Cooling towers/ventilation

Rule 17 Cooling towers/ventilation

Updated 3 July 2015 12:55pm

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

(1)water vapour plumes or steam from cooling towers and air-cooled heat exchangers; and/or

(2)forced air ventilation from indoor working spaces, unless otherwise covered by other rules in this Plan;

is a Permitted Activity, provided it complies with the conditions below.


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

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

(ii)exhausts are located to avoid cross-contamination with air intakes in the same building and adjacent buildings.

Explanation:Under Rule 17 discharges from cooling towers of water vapour-based plumes or steam, air from air-cooled heat exchangers and forced air ventilation from indoor working spaces, are permitted activities, subject to compliance with the stated conditions. This Rule relates to discharges to air from cooling towers and air cooled heat exchangers and from forced air ventilation from indoor spaces such as offices and factories. Rule 17 applies to discharges to air emanating from industrial or trade premises only.

The conditions in Rule 17 require that there are no dangerous, offensive, objectionable or noxious discharges. Condition (ii) requires that, when deciding on a location for exhausts for cooling towers, air-cooled heat exchangers and other forced air ventilation exhausts, due regard is had to the effects on air intakes of neighbouring properties.