Volume Two 22. Lake Grassmere Salt Works Zone is allowed for a period of not more than 2 minutes continuously, or for an aggregate of 4 minutes, in any 60 minute period. 22.3.12.5. The fuel burning equipment must be maintained in accordance with the manufacturer’s specifications at least once every year by a person competent in the maintenance of that equipment. A log recording all maintenance must be made available to the Council on request. 22.3.12.6. For external combustion sources the stack must comply with requirements in Appendix 8 – Schedule 5. 22.3.12.7. Coal must not be burned as a fuel if there are buildings higher than 6m within a 25m radius of the discharge. Fuels other than coal must not be burned if there are buildings higher than 5m within a 25m radius of the discharge. 22.3.12.8. The sulphur content of any coal burnt must be less than 2%. 22.3.13. Discharge of contaminants to air from combustion within a stationary internal combustion engine (i.e. internal combustion). 22.3.13.1. The fuel used in the engine must be gas, LPG, petrol, diesel, vegetable oils or alcohol. 22.3.13.2. Fuel containing sulphur at levels greater than 0.05% by weight must not be burned. 22.3.13.3. The power output of the engine must not exceed 400kW, this limit applies to the total heat output from a site. 22.3.13.4. If the power output of the engine is between 30kW and 400kW – (a) the engine must not be operated for a total of greater than 5 hours in any 24-hour period; (b) if the engine is in a fixed location, the stack must comply with the requirements of Appendix 8 – Schedule 5. 22.3.13.5. Where more than one fuel type is used on the property, the combined heat output must not exceed the lowest MW or kW threshold of any of the fuel types used. 22.3.14. 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. 22.3.14.1. There must not be more than 5 litres of coating material applied per hour and not more than 20 litres of coating material applied per month. 22.3.14.2. Where there is a sensitive receptor on another property within 100m of where the spray coating is to occur, there must not be more than 0.5 litre of coating material applied per hour and not more than 5 litres of coating material applied per month. 22.3.14.3. Spray coating must not occur on surfaces of fixed structures that can be dismantled and transported to a spray booth. 22.3.14.4. The coating material must not contain di-isocyanates or organic plasticisers. 22.3.14.5. The discharge must occur at least 10m from any sensitive receptor beyond the boundary of the property where spray coating is undertaken. 22.3.14.6. There must be no dispersal or deposition of contaminants beyond the boundary of the property where the discharge originates. 22 – 9