Monitoring on the weekend reveals that the continuing rain has washed away the acid sulfate threat. The river is healthy and the country is greening up.
The risk posed by the presence of acid sulfate soils in the Finniss River system was at the forefront of the justification of both state and federal authorities for the construction of regulators at Clayton Bay, Finniss River and Currency Creek. They were designated an emergency response but no emergency has materialised.
The Tookeyera Creek is flowing across the road as it has done a number of times since the rains started this winter. Sampling shows the pH is 6.5. The slightly acidic quality of the water is due to the presence of a complex mixture of organic acids produced by the decomposition of vegetable matter, i.e. the water is humic and healthy.
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