Challoner Park 23 Carbon Project

Challoner Park 23 Carbon Project is a Soil Organic Carbon Sequestration project located approximately 110km west of Hebel and 214km southwest of St George in the Balonne Shire of Queensland, near the New South Wales border. Registered in April 2024 by proponent LOAM CARBON PTY LTD, the project area covers 11,306.31 hectares of the broader 20,800-hectare Challoner Park property. The region is widely utilized for cropping, cattle grazing, and mixed farming, leveraging expansive exclusion-fenced blocks. Environmental conditions in the area are typical of a semi-arid climate, receiving a low annual average rainfall of around 400 to 470mm. The property itself features productive flat to gently sloping plains characterized by predominantly soft red and grey soils, as well as areas of beneficial flooding from the Mungallala and Wallum waterways.

The project operates under the 2021 Estimation of Soil Organic Carbon Sequestration using Measurement and Models methodology. Soil carbon projects generate carbon credits by changing land management practices to increase the amount of organic carbon stored in agricultural soils. The standard requirements for this method involve establishing a baseline of existing soil carbon, implementing eligible new management activities, and strictly quantifying carbon stock changes over time through rigorous physical soil core sampling combined with approved statistical models.

Specifically, the Challoner Park 23 Carbon Project aims to increase soil carbon within its agricultural system by applying nutrients to the land in the form of synthetic or non-synthetic fertilizers to address a material deficiency. Public records indicate that the project has undergone variations to its boundaries, with specific areas listed in the project being removed in September 2024 and October 2025. This is a common practice in soil carbon projects as proponents refine their Carbon Estimation Areas (CEAs) following initial baselining and viability assessments to exclude ineligible or underperforming land.