Mt Shamrock Quarry
Holcim’s Mt Shamrock Quarry produces high quality construction materials such as rail ballast, aggregates (for concrete and asphalt) and road bases that are essential for the construction of homes, roads, railways, bridges, marinas, hospitals, schools, shopping centres, and other infrastructure within our communities.
Community & Environment Enquiries
Victoria has a growing demand for construction materials due to major infrastructure projects as part of the Victoria’s Big Build and civil construction for housing and industrial developments in the south east growth corridor. In Victoria, there is a current shortage of suitable approved quarry materials that are in close transport proximity to meet the needs of these projects. Mt Shamrock Quarry is ideally located for ongoing affordable supply to residential and commercial developments.
Future resource investigation
In January 2025, Holcim informed the community that the Department of Transport Impact Assessment Unit (DTP IAU) formally accepted Holcim's referral application to seek a determination under the Environment Effects Act 1978 if an Environmental Effects Statement (EES) is required for the extension project at the Mt Shamrock Quarry.
In April 2025, Holcim was advised by the DTP IAU that the Minister of Planning determined that an Environment Effects Statement is not required for this project. The stated reasons are as follows:
Mt Shamrock Quarry: Work Authority Boundary Context (click to download larger version)
- The environmental effects of the project are unlikely to have the extent or complexity to warrant assessment under the Environment Effects Act.
- Potential effects on the environment, including effects on native vegetation and biodiversity, air quality, noise and vibration, land and water, are unlikely to be significant and should therefore be readily addressed through statutory processes and requirements under the Planning and Environment Act 1987, Environment Protection Act 2017 and Mineral Resources (Sustainable Development) Act 1990.
The minister's determination is publicly available on the following website along with submitted referral document and accompanying assessments:
This determination does not provide approval for the extension project to proceed, nor does it guarantee any subsequent approvals required for the proposed extension.
There are still a number of steps and processes that Holcim will need to undertake prior to the submission of a Work Plan Variation application to Earth Resources Regulation.
For general information on the work plan application process, you can refer to the following website on the Earth Resources Victoria website:
Next steps
Holcim’s focus is to complete the remainder of the technical assessments which include:
- Surface water & Erosion control
- Landscape and revegetation plan
- Landscape and visual amenity impact
- Noise
- Blasting
- Geotechnical
Holcim will also commence preliminary engagement with the other critical approval agencies such as Environmental Protection Agency (EPA) and Department of Energy, Environment and Climate Action (DEECA) on the assessments completed to date.
Holcim is committed to continuing to engage with the community throughout this project, and will provide updates as the project progresses.
Please note
Holcim is not considering any changes to the following conditions as part of this project:
- Size and shape of the Work Authority Boundary
- Operating hours 7am-6pm Monday to Friday & 7am to noon Saturday (Critical Maintenance can occur outside these hours)
- Blasting time frames Monday to Friday 11am-12 Noon, and 2pm-3pm
- Location or size of the existing infrastructure
- Intensity of the operation
- Traffic routes in and out of the quarry
Keeping you informed
Holcim is committed to open dialogue with the community and will continue to provide updates as the project progresses. Should you have any queries, concerns or wish to provide feedback project please use the the following dedicated avenues:
- Information website: www.holcim.com.au/mt-shamrock
- Consultation through the existing Environmental Review Committee (ERC) which meets quarterly
- All communications with the ERC and copies of all existing environmental performance are posted on this website
- Email contact: au-mtshamrock@holcim.com
- Phone contact: 0439 381 724
