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ATTACHMENT E - REVISED NOISE AND DUST MANAGMENT PLAN ITEM 11.1 COUNCIL 24/04/2013 Sand Extraction – Lot 75, Haag Road, Yelverton 3.3 POTENTIAL IMPACTS AND DUST SOURCES Excavation of the ore itself does not tend to generate excessive dust, as the ore material is sandy and coarse (~50µm), with good levels of soil moisture and low clay content. In-pit operations also tend to generate less dust due to the reduced airflow within the pit. Removal and replacement of topsoil material has a higher risk of dust generation due to the large volumes of material involved and generally lower levels of soil moisture, particularly during summer earthworks campaigns. Potential dust emissions may include dust generated by haul road use, wind action on disturbed areas, pit walls and batters. Other less likely sources of dust generation include soil cultivation during rehabilitation operations, vehicle movements outside of the pit and the clearing of vegetation. Dust generation can be significantly reduced by restricting dust generating activities on excessively windy days, using water carts, minimising the area of disturbance, and rehabilitating as soon as practically after mining. Other methods may include vegetating topsoil stockpiles, applying fines and sealing agents or mulch on exposed areas. 3.4 MONITORING DUST 3.4.1 High Volume Air Sampler (Gravimetric Method) The high volume air sampler (HVA) measures TSP by drawing a measured volume of air through a filter for a set period and measuring the subsequent gain in mass of the filter. Typically the sampling period is approximately 24 hours (hrs) and the air flow 70m 3 /h, in effect measuring the cumulative dust load over 1680m 3 of air for single sample. The HVA sampling method that will be followed is described in AS/NZ 3580.9.3, which provides information and requirements on preparation, calibration, reporting and quality assurance. The method is widely employed in regional air quality monitoring networks because the TSP material trapped in the filter can be further assayed for chemical and particle size analysis. The power requirements of maintaining a constant flow rate that is beyond portable power generators therefore most HVA units are fixed in a static location with mains power. Preparation and analysis of filter papers will be conducted according to AS3580.9 and a NATA accredited laboratory will be used for analysis. 3.4.2 Siting in Monitoring Equipment Equipment referenced in this management plan will be sited according to the AS3580.1.1, when monitoring is undertaken. Where it is not possible to meet the criteria listed in the standard, the results gathered from non-compliant sites will be reported with a statement noting the difference. Sand Extraction – Lot 75, Haag Road, Yelverton 7
ATTACHMENT E - REVISED NOISE AND DUST MANAGMENT PLAN ITEM 11.1 COUNCIL 24/04/2013 Sand Extraction – Lot 75, Haag Road, Yelverton 3.5 MANAGEMENT ACTIONS The following management actions will be applied to the Project to ensure any dust emissions emanating from the operations remain within acceptable levels. 3.5.1 Workplace Practices The following practices will be employed on site to provide dust management techniques for specific activities, such as: Speed Limits Project speed limits on the main access haulage road and unformed tracks will be restricted to no more than 30km/h for light vehicles and haulage trucks Heavy earthmoving equipment will drive to soil conditions with water applied to working areas as required. Speed limits for heavy earthmoving equipment are a contingency available during adverse conditions, based on the site supervisors’ assessment Topsoil Stripping Topsoil will normally only be stripped outside summer months (i.e. not between December to February). Water carts will be used to suppress dust when low soil moisture conditions require it Exceptions to this may occur where weather or soil conditions prevent access during wet months If topsoil stripping occurs outside winter months then water carts will be used to keep the soil damp during topsoil stripping Weather conditions will be assessed before commencing topsoil stripping, and re-assessed on a daily basis during stripping Haulage Management of dust from the haulage road is to be controlled by using well-formed roads Tarpaulin measures will be employed for all loads prior to haulage leaving the site Haulage roads will be dampened through water application such as water carts as required Disturbed Areas Clearing areas will be restricted to the minimum requirement for continued operation Outside of winter months, sealing agents will be applied to any disturbed areas that are not to be immediately utilised (Refer to Section 3.5.3). Soil will be dampened by using water carts in high activity, disturbed areas that cannot be stabilised using mulch from site or areas that are awaiting application of mulch or similar application Access will be restricted to areas that are able to be serviced by a water cart and sprinkler bar Sprinkler systems may be used in areas where dust control is not achieved by the other control measured outlined above Sand Extraction – Lot 75, Haag Road, Yelverton 8
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DATE REFERENCE NAME DESCRIPTION AMO
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City of Busselton COUNCIL 24/04/201
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ATTACHMENT A - LOCATION PLAN ITEM 1
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SUMMARY OF SUBMISSIONS PROPOSAL: DA
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SUMMARY OF SUBMISSIONS PROPOSAL: DA
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ATTACHMENT D - APPLICATION FOR PLAN
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Attachment B Item 12.1 Council 24 A
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The new process (described above) d
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COUNCIL 24/04/2013 CIB ATTACHMENT 2
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Attachments - City of Busselton

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