Weelhamby Carbon

Lake Weelhamby is a saline playa lake system located in the Mid-West region of Western Australia, approximately 400 km north of Perth via the North West Coastal Highway. The site sits within a flat, semi-arid landscape typical of the Murchison-Geraldton corridor. This remoteness creates extended supply chain lead times for consumables, reagents, and mechanical components. All critical inputs must be pre-staged through the Geraldton logistics hub, making inventory buffer management a non-negotiable operational discipline for any B2B vendor.

Lake Weelhamby operates as an active gypsum extraction site, supplying agricultural-grade and industrial-grade gypsum to downstream markets including soil amendment and cement manufacturing. Workforce deployment follows rotational FIFO/DIDO rosters from Geraldton as the nearest service town. Camp support infrastructure — including catering, accommodation, and medical response — must be contractor-supplied given the absence of permanent township facilities. B2B vendors targeting this site should align proposals with lean crew cycles and seasonal extraction windows driven by lake-bed moisture conditions.

• Agricultural-grade gypsum: primary product stream
• Industrial-grade gypsum: secondary market (cement, plasterboard)
• Geraldton as primary FIFO/DIDO mobilisation hub
• Seasonal operational windows tied to playa lake hydrology

Surface extraction at Lake Weelhamby relies on mechanical scrapers and front-end loaders harvesting gypsum crust from the lake bed. Processed material is transferred via conveyor belt systems to stockpile and load-out areas, where dust suppression and material segregation are critical engineering controls. Given the flat terrain, conveyor alignment and belt tension management under high ambient temperatures (exceeding 40°C in summer) represent key maintenance challenges. Mobile crushing and screening units are typically deployed on-site to achieve product gradation specifications prior to road haulage.

• Mechanical lake-bed scraping and front-end loader fleet
• Conveyor systems for stockpile transfer and load-out
• Mobile crushing and screening for product sizing
• Dust suppression systems — mandatory in arid, high-wind conditions
• Road haulage via B-double trucks to Geraldton port

Gypsum operations at Lake Weelhamby carry an inherently low carbon extraction footprint relative to hard-rock mining, with no blasting and minimal overburden removal. ESG advancement opportunities include integration of solar-hybrid power generation to offset diesel dependency for site plant and camp loads — a viable proposition given the region's exceptional solar irradiance (GHI >5.5 kWh/m²/day). Water stewardship is critical; the playa system must be managed to avoid hydrological disruption. Alignment with Scope 1 and Scope 2 decarbonisation targets is increasingly demanded by downstream cement and agricultural customers under their own ESG reporting obligations.

• No-blast surface extraction — inherently lower GHG intensity
• Solar-hybrid microgrid potential for site power
• Playa lake hydrology monitoring as core environmental obligation
• Scope 1 & 2 reporting alignment with downstream customer ESG mandates
• EV-compatible light vehicle fleet transition feasible at current scale