It has been estimated that 30% of all acid sulphate soils located in Australia are on the coastal strip of Western Australia. Disturbing the ASS can cause environmental damage. Iron sulphide minerals in these soils oxidise when exposed to air, caused by a lowering of the water table or excavation, releasing sulphuric acid and iron into the soils and groundwater. This can result in waterways being adversely affected, killing fish and vegetation and damage to structural infrastructure from development.

In response to a growing need for the evaluation of Acid Sulphate Soils in Western Australia ARL (WA) is pleased to offer a comprehensive suite of NATA accredited analyses used to identify potential and actual Acid Sulphate Soils. The ARL (WA) Methods are based on the Acid Sulphate Soils Laboratory Methods Guidelines QASSIT (Ahern et al)

Analytical suites available are:

• SPOCAS ( Suspension Peroxide Oxidation Combined Acidity and Sulphate) suite.

• Chromium Reducible Sulphur suite.

• Acid base accounting calculations and liming rate calculations.

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