Managing Noise at HVO
We regularly measure noise generated by our operations to assess our performance against regulatory conditions and the effectiveness of our noise management strategies. We measure noise using a combination of attended noise monitoring (hand held units) and real time noise monitoring.
When an alarm is received on site, our team at the Integrated Operations Centre (IOC) acknowledge and respond to the alarm with the use of real time data and directional noise indicator software. If noise levels are indicating a particular area of the mine, our operations are required to take action to ensure that noise is reduced. Modifications to operations are generally undertaken according to a hierarchy of control, and include:
- Re-arranging fleet types
- Changing haul routes
- Changing dump locations
- Reducing fleet numbers
- Shutting down tasks/mine site
HVO take proactive measures at the beginning of each shift to account for prevailling meteorological conditions using predictive modelling. The real-time monitoring system assists the mine with noise management and relays alerts to the Shift Corodinator.
The Shift Coordinator uses data from the real-time monitoring system to help the site make changes to its operations if noise levels are rising, and to let them know whether the changes are working to reduce the noise levels.
Our Shift Corodinators may also speak with community members who raise concerns about mine noise. OCEs receive and respond to complaints on night shift and inform community members of current noise levels from the real time monitoring network, and (if applicable) any changes that have been implemented at site to minimise noise.
Routine compliance assessments are undertaken by specialist acoustic consultants. Monitoring is completed once per month at a number of locations surrounding HVO. The results of compliance monitoring are reported publically each month in the document library on this website. For more information on compliance assessment, please refer to the HVO Noise Management Plan.