Fingerboards Mineral Sands Noise assessment Introduction Gillian - PowerPoint PPT Presentation

Fingerboards Mineral Sands Noise assessment

Introduction Gillian Lee – Senior Consultant Fingerboards Mineral Sands Noise Assessment Experience: 9 years acoustic consulting experience • Has prior experience developing noise assessments for EES processes in regional VIC • Has experience with mining & quarrying projects around metropolitan Melbourne and regional Victoria • Has expertise in 3D environmental noise modelling 2

Presentation Overview Examine purpose for study Discuss EES scoping requirements Provide overview of study approach Report findings so far Discuss proposed mitigation measures Discuss next steps for study

Purpose of Noise Assessment To protect the health and wellbeing of residents and local communities, and minimise effects on noise, having regard to relevant limits, targets or standards [EES Scoping requirements – Amenity and Environmental Quality] 4

EES Scoping Requirements Characterising the existing environment Design and mitigation measures Assessment of likely effects Approach to manage performance 5

Methodology underpinning Noise Assessment • Measurements: Existing Ambient and Traffic noise Baseline • NIRV ( N oise from I ndustry in R egional V ictoria) • Other guidelines (VIC EPA, NSW EPA) Criteria • Model Scenarios • Comparison of predicted noise level with criteria Assess • Consultation with industry experts • Mitigation targeted to reduce highest noise levels Mitigate 6

Baseline Noise Assessment - Measurement Locations Baseline ambient and background noise measurements 7

Baseline Data Results Ambient noise levels Table 1: Range of daily period ambient noise levels, L Aeq(1hr) Location 11 – 23 May 2017 Day Evening Night L1 29 – 59 21 – 46 17 – 56 L2 29 – 58 21 – 53 16 – 48 L3 22 – 56 20 – 39 17 – 48 8 – 22 August 2017 L1 35 – 67 21 – 60 26 – 67 L2 28 – 61 32 – 65 23 – 60 L3 31 – 62 28 – 57 21 – 58 8

Baseline Data Results Background noise levels Table 2: Range of daily period background noise levels, L A90(1hr) Location 11 – 23 May 2017 Day Evening Night L1 19 – 43 17 – 40 16 – 32 L2 17 – 48 16 – 46 15 – 32 L3 19 – 42 16 – 38 16 – 35 8 – 22 August 2017 L1 21 – 57 21 – 47 21 – 45 L2 18 – 51 21 – 62 17 – 54 L3 21 – 56 23 – 51 19 – 48 9

Baseline Noise Assessment - Measurement Locations Baseline traffic noise measurements Baseline ambient and background noise measurements Baseline traffic noise measurements 10

Baseline data results – traffic noise Table 3: Ambient noise logging results summary, 8 – 22 August 2017 Location Range of daily period noise level Day, L Aeq15hr, dB Night, L Aeq9hr, dB (0700 hrs – 2200 hrs) (2200 hrs – 0700 hrs) L4 51 - 55 40 - 49 L5 55 - 60 47 - 54 L6 58 - 61 52 - 57 11

Criteria - NIRV Recommended maximum noise levels for Earth Resources (Mines, Quarries etc) 12

Assess - Findings so far Predicted noise levels comply with evening period NIRV limit for day/evening activities at all locations, for all scenarios Predicted noise levels comply with night period NIRV limit for night activities at most locations, for most scenarios (two exceptions of 1dB exceedance) 13

Findings so far Predicted noise levels - Day and Evening period 50 Day period NIRV limit (46) 45 Evening period NIRV limit (41) 40 35 30 25 20 15 10 5 0 R1 R2 R5 R6 R7 R15 R16 R21 R29 R30 R43 R44 Yr 01 Yr 05 Yr 08 Yr 12 14

Findings so far Predicted noise levels - Night period 50 45 40 Night period NIRV limit (36) 35 30 25 20 15 10 5 0 R1 R2 R5 R6 R7 R15 R16 R21 R29 R30 R43 R44 Year 1 Year 5 Year 8 Year 12 15

Findings so far Location Increase in level due to project-related traffic Base Base Noise Diff, dB Base Base Noise Diff, dB Noise Level + Noise Level + Level project- Level project- related related traffic traffic Day period, L Aeq15hr, dB Night period, L Aeq9hr, dB L4 +1 40 47 +7 51 52 L5 +1 47 49 +2 55 56 L6 Nil 52 53 +1 58 58 16

Mitigate - Proposed mitigation measures Screening – Earth Bunds (examples) 17

Mitigate - Proposed mitigation measures Proposed that some items will not operate at night in Year 1 without prior confirmation from measurements that they can achieve the night criteria Examples: -Haul trucks (overburden) -Overburden support dozer -FEL at overburden -Water truck at overburden -Amphirolls Plant-based mitigation packages - examples 18

Mitigate - Proposed mitigation measures Broadband reversing signals Cladding or screening of WCP (example) 19

Noise Monitoring and Management Plan Development of noise management plan • Framework for managing noise within the community • Noise compliance monitoring • Validation of equipment emissions • Reporting and verification 20