Narangba Quarry - About Us
The Narangba Quarry is located on Raynbird Road, Narangba, 37km north of Brisbane and northwest of the Narangba Township. Boral's landholdings cover an area of 469.8 hectares. Approximately 50ha are occupied by quarry operations and 420ha are buffer land. Boral's total landholding comprises:
- Lot 139 on SL10320;
- Lot 53 on RP895391;
- Lot 93 on SP193378; and
- Lot 1 on RP167435.
The Narangba Quarry has been managed and operated by Boral since 1995, however the site has been operational since 1969. An existing town planning and environmental approval along with a Local Law Permit are in place for the operations.
The existing operation is contained within Lot 139 on SL10320 and Lot 1 on RP167435 with the other parcels owned by Boral acting as a buffer to the quarry's operation.
The site is included in the Rural Zone under the Caboolture Shire Plan and is designated as Regional Landscape and Rural Production Area in the South East Queensland Regional Plan 2005-2026. The entire site is identified as a Key Resource Area (KRA46) under the draft State Planning Policy for the Protection of Extractive Resources. Access for vehicles transporting materials to and from the quarry is via the haulage route of Raynbird Road, Oakey Flat Road and New Settlement Road to the Bruce Highway.
Narangba quarry produces a range of sealing, asphalt and concrete aggregates as well as road base.
The current products are sourced from two pits:
- 1. A greenstone pit: Greenstone is a foliated rock formed from basalts which have been regionally metamorphosed by pressures induced by burial or crustal movements.
- 2. A blue hornfels pit (commonly referred to as bluestone): Hornfels is a term given to a claystone type rock that has been "cooked" around the margins of an intrusion by thermal metamorphism.
Boral is committed to optimising the significant hard rock resource within the designated Key Resource Area while minimising social and environmental impacts from quarry operations.
There are four main rock types:
- Greenstone and hornfelsed greenstone;
- Blue hornfels;
- Phyllite; and
The site is dominated by the NE-SW trending ridge of hornfelsed greenstone. The north-western corner of the Boral property is granite. The north-eastern corner is dominated by blue hornfels and phyllite.
These rocks were originally a sequence of basalt, volcanic ash and mudstone which were folded and faulted and subjected to regional metamorphism:
- Volcanic Ash - Phyllite;
- Mudstone - Shale;
- Basalt - Greenstone.
A second phase of heating occurred with the intrusion of the Dayboro granite (tonalite).
The molten granite melted the shale and greenstone it came into contact with.
When these beds cooled they formed to:
- Shale-Blue Hornfels and/or;
- Greenstone- Hornfelsed Greenstone.
The environmental development approval (administered by the Queensland Environmental Protection Agency) permits extraction, crushing and screening environmentally relevant activities (ERAs) to greater than 100 thousand tonnes per year.
Boral's Narangba Quarry is operated under approvals from the Caboolture Shire Council and Environmental Protection Agency (EPA). These approvals include:
- Town Planning consent issued by Caboolture Shire Council;
- Local law Extractive Industries Permit issued by Caboolture Shire Council; and
- Environmental development approval and Operators Registration Certificate issued by EPA.
State Planning Policy for the Protection of Extractive Resources
State Planning Policies (SPPs) set out the State Government's interest in development-related economic, social, or environmental issues that can be implemented through planning schemes and development assessment.
On 8 June 2007, The Honourable Andrew Fraser, Minister for Local Government, Planning and Sport adopted the State Planning Policy 2/07: Protection of Extractive Resources (the Policy) under the Integrated Planning Act 1997 (IPA) with effect from 3 September 2007.
The Policy is a joint initiative between the Departments of Mines and Energy and Local Government, Planning, Sport and Recreation.
The Policy seeks to maintain the long-term availability of major extractive resources by protecting these resources and their main transport routes from incompatible land uses. This is achieved through local government planning schemes and assessment of development located near extractive resources.
Major extractive resources identified in the Policy are referred to as key resource areas (KRAs). A KRA encompasses:
- the extractive resource and on-site processing area;
- the associated transport route, usually a road haulage route;
- a separation area around the resource and processing area and the transport route.
KRAs will be protected from incompatible develop through the development assessment by ensuring development in the KRA is compatible with the extraction, processing and transport of extractive materials to markets.
Boral's Narangba Quarry is located within Key Resource Area - KRA 46 as defined under the State Planning Policy.
Local Government Area: Caboolture Shire Council.
>State Planning Policy 2/07: Protection of Extractive Resources
>Narangba Key Resource Area - KRA 46