Coogee Cockburn

Moylan Wattleup is situated within the South West Metropolitan Region of Western Australia, in the Wattleup industrial precinct south of Fremantle. The terrain is characterised by low-relief coastal plain underlain by Tamala Limestone formations — a shallow, friable carbonate sequence ideal for open-cut quarrying. Flat to gently undulating topography minimises overburden stripping ratios and simplifies bulk earthworks logistics, enabling high-volume extraction with reduced cut-slope engineering complexity.

The site operates under an active quarrying licence within a peri-urban industrial zone, classifying it as a DIDO (Drive-In Drive-Out) operation given its proximity to the Perth metropolitan area. Key operational parameters include:

• Continuous day-shift extraction cycles typical of metro-adjacent quarries
• No FIFO roster required — local workforce drawn from Kwinana/Cockburn catchment
• Proximity to Kwinana Industrial Area enables direct B2B supply to cement, construction, and agricultural lime sectors
• Operator: WA Limestone Group, one of WA's largest integrated limestone producers

Limestone and limesand extraction at Moylan Wattleup relies on drill-and-blast or rip-and-push methodology suited to the soft Tamala formation. Processing typically involves:

• Primary jaw or impact crushing for coarse aggregate sizing
• Screening circuits for graded limestone products (road base, agricultural lime, construction fill)
• Limesand processing via dry or wet screening — minimal beneficiation required
• On-site stockpile management for bulk dispatch by road tipper fleet

No flotation or complex hydrometallurgical circuits are applicable to this commodity type.

Operating within the Perth metropolitan fringe imposes stringent environmental compliance obligations under the WA Environmental Protection Act 1986 and DMP quarry licensing conditions. ESG considerations include:

• Dust suppression and noise attenuation as primary community impact controls
• Progressive rehabilitation obligations tied to extraction licence conditions
• Short haul distances to Kwinana industrial consumers reduce Scope 3 transport emissions
• Potential alignment with WA Limestone Group's broader carbon footprint reduction initiatives via fleet electrification and renewable energy procurement