Coastal acid sulfate soils (ASS) are naturally occurring sediments deposited under low elevation estuarine conditions such as coastal floodplains. When exposed to oxygen through drainage or disturbance, these materials produce sulfuric acid, often releasing potentially iron, aluminium and other metals.

The NSW Sugar Industry plays an active role in the management of ASS in cane farming areas throughout the region.

acid sulfate drains

The NSW Sugar Industry controls on-farm management of acid sulfate soils (ASS) through a unique industry-government self-regulation scheme.

Click here to read more about how the sugar industry achieved self-regulation

Click here to see the NSW Sugar Industry Best Practice Guidelines for acid sulfate soil


acid sulfate audit

An annual audit of acid management practices is an integral component of the NSW sugar industry self regulation scheme.

2018 audit summary audit summary



Drain maintenance compliance record form - year ending June 2019

Cleaning drains - a simple way to work out how much lime do I need?


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