Roberts Carlotta

Project Logistics & B2B Overview

Geographic Location and Topography

Roberts Carlotta is an operating construction materials quarry situated within the South West Mining Field of Western Australia — a region characterised by undulating lateritic terrain, dense karri and jarrah forest corridors, and high annual rainfall exceeding 1,000 mm. Intense seasonal rainfall events generate significant mud accumulation on haul roads and access tracks, demanding continuous grading cycles and geotextile reinforcement to maintain safe truck payload movements and prevent axle-load failures on unsealed access routes.

B2B Lifecycle and Operations

The site maintains an active operating status, supplying crushed aggregate, road base, and construction-grade materials to regional civil and infrastructure contractors. Continuous 24/7 operational cycles drive intensive diesel combustion across drill rigs, loaders, and haul trucks, creating sustained demand for bulk fuel supply contracts, on-site fuel storage infrastructure, and dedicated power subestations to sustain crushing and screening plant throughput without interruption.

Engineering and Extraction Infrastructure

Material handling at Roberts Carlotta relies on a network of complex conveyor belt systems transferring blasted rock from the pit face through primary jaw crushing to secondary and tertiary screening circuits. Key engineering dependencies include:

• High-tension conveyor drives requiring scheduled vulcanisation and belt-tracking maintenance
• Vibrating screen decks calibrated to construction-grade aggregate specifications
• Dust suppression water cannons integrated across transfer points
• Diesel-electric gensets providing backup power redundancy to crushing circuits

ESG, Value Chain and Sustainability

Operating within the South West region mandates rigorous Aboriginal Heritage compliance under the WA Aboriginal Heritage Act, requiring Section 18 consents and ongoing cultural monitoring protocols prior to any ground disturbance. B2B procurement strategies increasingly prioritise:

• Formal supply agreements with local Aboriginal-owned enterprises for civil works and site services
• Rehabilitation bonding and progressive landform restoration commitments
• Carbon-intensity reporting aligned with Scope 1 diesel emission reduction targets
• Stormwater and sediment control plans addressing high-rainfall runoff risk