Water Quality Results 2015-2016

The latest water quality results have been released courtesy of City of Gold Coast Council. With no official summary of the results available, I would like to comment on local observations over the past year.

2015 started off with above average rainfall but in the second half of the year and continuing into 2016, the rainfall has been well below average.

Rainfall Statistics 2016

The lack of rain would contribute to less nutrients from properties being washed into the lake. The lack of heavy downpours has hopefully increased the efficiency of the drain litter baskets with more leaf litter being collected and again less nutrients entering the lake.

On the negative side, the lake has not received any flushing over the past year with not enough rainfall to fill the lake to overflow.

Water Visibility. Water visibility improved leading into spring but usually deteriorates through summer. With the lack of rainfall however, water clarity has remained good throughout summer and into Autumn.

Graphs below – Courtesy: City of Gold Coast Council.

Total Nitrogen 2015

Total Phosphorus 2015

Turbidity 2016