Resource Limestone
Company Boral Resources (SA) Pty Ltd
Status Operating, open cut. Linwood Quarry Eastern Extension Project mining lease granted, PEPR pending.
Mining operation Open cut mine, activities conducted on the site include drilling and blasting, mining (loading and hauling), crushing and screening, concrete batching, and product sales.
Location and areaLinwood Quarry is located between the suburbs of Hallett Cove, Marino and Seacliff Park, approximately 15 km southwest of Adelaide CBD covering an area of approximately 230 hectares.
Tenement information

Linwood Quarry currently consists of extractive minerals leases (EML) 5730, 5731, 5732 and 6525; private mines (PM) 3, 4 and 22, for the extraction of limestone.

  • EML 5730 - Longfield Pty Ltd, area of 1.07 hectares, for the extraction of limestone
  • EML 5731 - Longfield Pty Ltd, area of 0.84 hectares, for the extraction of limestone
  • EML 5732 - Longfield Pty Ltd, area of 0.42 hectares, for the extraction of limestone
  • PM 3 - Boral Resources (SA) Ltd, area of 4 hectares, for the extraction of limestone
  • PM 4 - Boral Resources (SA) Ltd, area of 60 hectares, for the extraction of limestone
  • PM 22 - Longfield Pty Ltd, area of 163.5 hectares, for the extraction of limestone
  • EML 6525 - Eastern extension project, 37.38 hectares, for the extraction of limestone

Tenement information can be found via the South Australian Resources Information Gateway (SARIG)

The deposit

Linwood Quarry produces limestone-based products for the building and construction market in South Australia. Products from the quarry are used for asphalt, road-sealing aggregates, concrete aggregates, and road base materials.

Activities conducted on the site include, drilling and blasting, mining (loading and hauling), crushing and screening, and product sales. More information can be found on the Boral website.

Linwood Quarry has been identified as a strategic mineral resources area in South Australia. More information about strategic extractive quarries can be found in Identification of Strategic Mineral Resource Areas in South Australia (PDF 4.0 MB)

Resource estimates and production estimates

Production statistics are available from Operating mines and quarries of South Australia

Application and approval process

Quarrying first began on this site in 1882 with Boral taking over the operation in 1994. There is currently an approved Mine Operations Plan (MOP) for the Linwood Quarry which was approved by DEM in October 2008.

On 6 December 2018, Boral submitted an application for a mining lease for the eastern expansion area and supported by a mining proposal to the Department for Energy and Mining (DEM).

The application was made available for public comment on 16 May 2019, with comments to be submitted by 27 June 2019. 11 submissions were received from members of the public.

The Department for Energy and Mining reviewed all submissions made by members of the public along with technical input from a number of South Australian government Departments including, but not limited to, the Environment Protection Authority, Department for Environment and Water, and the Department for Planning, Transport and Infrastructure.

DEM determined that additional information was required to enable assessment of the application, and a request for a response document was prepared. The applicant was required to formally respond to all matters and requests for further information raised by the public and the South Australian Government.

The applicant submitted their response document on 3 June 2020. This response document, along with the public submissions, the government’s request for response document has been published on this website (see “Current documents and reports” below). and the original Mining Proposal can be found on the Boral Website.

On 14 May 2021 the mining lease for extractive minerals, EML 6525, was granted for a term of 21 years.

The current operational program for the quarry must be revised by Boral and approved by DEM prior to commencement of mining operations in the eastern expansion area. The currently approved Mine Operations Plan (MOP) authorises operations on the remainder of the Linwood Quarry mining tenements.

Current Documents and reports

Mining proposal

  • Mining proposal
  • Appendices

Public submissions received

Response documents

The request for response letter includes a consolidated list of matters raised by relevant South Australian Government departments, and outlines further information required by the applicant.

Combined Mine Operations Plan (MOP) and Program for environment protection and rehabilitation (PEPR)

The current operational program for the quarry must be revised by Boral and approved by DEM prior to commencement of mining operations. As the operation includes private mines which require a MOP, and mining leases which require a PEPR, Boral are currently preparing a single combined MOP/PEPR for the operations to address the legislative requirements for all tenements.

Following submission and government assessment, if the MOP/PEPR is approved it will be made available on this web page.

Current Mine Operations Plan

A Mine Operations Plan (MOP) for the Linwood Quarry was approved by DEM in October 2008. The MOP contains a description of the existing environment, description of mining operations, and a set of environmental objectives and measurement criteria which must be achieved for the site.

Mine Operations Plan (MOP) 2008 - please refer to the Boral Website.

In December 2016, DEM endorsed a minor variation to the Linwood Quarry operations after a detailed risk assessment process was undertaken on a proposal to extend the southern face of the quarry approximately 25 metres to the south. The top two benches of the quarry have now been completed to the southern-most limits of this endorsement.

Risk Assessment documentation - please refer to the Boral Website.

The EPA licenses activities of environmental significance and monitors water, air and noise pollution. Linwood Quarry's current operations, are subject to this requirement for EPA authorisation. For more information see the EPA website.

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