080121-08MN006-Sabina Hackett River Project Proposal ... - NIRB

Identification of Potential EnvironmentalEffects and Proposed MitigationProposed MitigationMitigation for air emissions from fuel combustion will be addressed by necessity due to the highcost of fuel in the region. Vehicles used for the project will be high in fuel efficiency andmovement of vehicles and aircraft will be managed to reduce fuel consumption.Ore geochemistry results are pending and will provide some indication as to the likely chemicalnature of airborne particulates released from the crusher. Ore dust and concentrate dustemissions, to the extent that they occur, will be mitigated inherently due to the value of theproduct. Dust suppression in stock pile areas may be conducted during the brief dry season.Trucks transporting concentrate to the port will be covered to minimize loss of concentrate andminimize airborne fugitive dust, and will be washed after delivery.Dust suppression methods will be used for roads and the airstrip to help minimize dustgeneration from road and airstrip usage.7.3.1.2 NoisePotential EffectsPotential project-related impacts to noise include:• Vehicles, aircraft, and equipment• Blasting during mining• CrusherNoise emissions will primarily be localized to the Hackett River Project area and Bathurst Inletwith some additional noise along the trucking lanes. Noise at the Project will consist of periodicblasting, equipment operation and aircraft landing and takeoff. At Bathurst Inlet, the shiploading (operation of conveyors) will be the largest noise emitter.Noise during construction along the road will be more intense but short in duration compared tothe passage of regular truck traffic.Proposed MitigationAll mining and road construction equipment that will be used during the mining program will bemodern or new, and equipped with appropriate mufflers. The focus of any mitigation at theProject will be on ensuring a safe work environment with appropriate personal protectiveequipment to minimize impacts. Options for further mitigation are limited, and impacts arerelatively modest and short-term. Therefore, no other mitigation is proposed for land-basedequipment.Potential noise impacts to both people and wildlife from aircraft will be mitigated by restrictingair traffic to a prescribed minimum height.January 2008 Hackett River Project – Project Proposal Sabina Silver CorporationReport Version B.1 7–5 Rescan Environmental Services Ltd. (Proj. #833-2)