Volume Two 15. Marina Zone 15.4.1.6. There must be no dispersal or deposition of particles beyond the boundary of the property where the discharge originates. Matters over which the Council has reserved control: 15.4.1.7. The standard of emission. 15.4.1.8. Recovery of toxic materials from the blasting enclosure. 15.4.1.9. Methods for disposal of toxic materials. 15.4.1.10. Requirement for monitoring. [R] 15.4.2. Discharge of contaminants to air from the application of coating materials (including paints and powders) through spray application undertaken within an enclosed booth. Standards and terms: 15.4.2.1. Coatings that contain di-isocyanates must not be used. 15.4.2.2. The total amount of coating material sprayed at one place must not exceed 10 litres per hour. 15.4.2.3. The spray booth must be fitted with an air extraction system vertically discharging all contaminants and exhaust air to an emission stack. 15.4.2.4. The emission stack must be a height of at least 2m above the ridgeline of the roof of any building, land or other substantial structure within a radius, from the stack, of 35m. 15.4.2.5. The discharge must be directed vertically into the air and must not be impeded by any obstruction above the stack which decreases the vertical efflux velocity, below that which would occur in the absence of such obstruction. 15.4.2.6. The discharge must be through a filtration system that removes at least 95% of particulate matter from the discharge. Matters over which the Council has reserved control: 15.4.2.7. The standard of emission. 15.4.2.8. Recovery of toxic materials from the blasting enclosure. 15.4.2.9. Methods for disposal of toxic materials. 15.4.2.10. Requirement for monitoring. [R] 15.4.3. Discharge of contaminants to air from water blasting or from dry abrasive blasting, other than from the use of a moveable source from any industrial or trade premise. Standards and terms: 15.4.3.1. There must be no discharge of water spray, dust or other contaminant beyond the boundary of the property. 15.4.3.2. Where the discharge occurs from public land there must be no discharge of water spray, dust or other contaminant beyond 50m from the discharge point or beyond the boundary of the public land, whichever is the lesser. 15.4.3.3. There must be no discharge of water spray, dust or other contaminant into the coastal marine area. 15 – 11