Williams River’s health test

Dungog Public School student James Overton testing the PH of the waterFour students from Dungog Public School began testing the Williams River in August last year.

Ian Parsons, Brad Andrews, Stuart Hitchens and James Overton water-test the river at Robinson Park (Dungog caravan park) once a month under the watchful eye of teacher Kerry Lason.

While Ian has moved to high school the other three students are continuing to provide this data to the Catchment Management Authority (CMA) to check the quality of the river.

“The testing involves measuring the air and water temperature, PH level, electrical conductivity and the turbidity level of the consistency of the river,” Ms Lason said.

“The final results are put on the CMA database.”

On May 10 the air temperature was 18 degrees Celsius, water temp was 17 degrees, PH 7, electrical conductivity 170uS/cm (microsiemens centimetre).

The turbidity was 7 NTU (nephelometric turbidity unit).

“This shows us the river is in really excellent condition,” Ms Lason said.

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