Volume Two 23. Airport Zone [R] 23.1.24. Discharge of contaminants to air from water blasting and from dry abrasive blasting, other than from the use of a moveable source. [R] 23.1.25. Discharge of contaminants to air from the application of coating materials (including paints and powders) through spray application undertaken within an enclosed booth. [R] 23.1.26. Discharge of contaminants to air from the spray application of paint or adhesive coating materials of surfaces not within a spray booth, other than a road. [R] 23.1.27. Discharge of contaminants to air from the production of fibreglass and other composite materials or from the production of plastic products and plastic moulding operations. [R] 23.1.28. Discharge of contaminants to air from the burning of solid fuel in a indoor open fire. [R] 23.1.29. Discharge of contaminants to air from the burning of solid fuel in a small scale solid fuel burning appliance. [R] 23.1.30. Discharge of contaminants to air from the burning of solid fuel in an enclosed pellet burner. [R] 23.1.31. Discharge of heat and water vapour from cooling towers. 23.2. Standards that apply to all permitted activities 23.2.1. Construction and siting of a building or structure. 23.2.1.1. A building or structure, including a mast, pole, fence, overhead telegraph cable, overhead power cable, tree or other object must not penetrate any flight path, take off, climb/approach fan or transitional slide slope identified in the Picton (Koromiko) or Omaka Obstacle Limitation Surfaces shown in Appendix 15. 23.2.1.2. With the exception of airport navigation control or safety equipment, a building or structure must not exceed a height of 14m. 23.2.1.3. A building must be setback 8m from the zone boundary. 23.2.1.4. A building or structure that has the potential to divert water must not be within a Level 2 Flood Hazard Area. 23.2.1.5. A building or structure must not be within a Level 3 Flood Hazard Area. 23.2.1.6. A building or structure in which human effluent will be created must connect to, and dispose of its effluent into, a Council operated sewerage system designed for that purpose, if the system is within 30m of the property boundary or 60m of the closest building. 23 – 3