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October 2025: Chemical, Water Quality and Macroinvertebrate Analysis
- Alison Loxton
- 6 days ago
- 1 min read
Hi everyone,
Please find attached results of our Water Quality Monitoring results for October 2025.
Overall, the results were within the normal range, with comments as follows:
pH varies a little between fresh and saltwater; saltwater is generally higher in pH being slightly alkaline, whilst freshwater can tend to be a little more acidic, bearing in mind that a pH of 7 is neutral
Water temperature does vary a little along the Coomera River; in the month of October the higher temperatures were upriver rather than downriver, a situation reversed in cooler months
Overall, the waters appeared quite clean, with little fish activity except the breeding herring at the weir; even at the weir the tiny baitfish were not evident and the number of breeding egrets at Waterhen Lake is less than a third of what it was two years ago
It will be interesting to see if the numbers of animals both land and water-based recover to what we have enjoyed in the past; if the loss continues it will be a great loss and ourselves the poorer in terms of environment
Many thanks to Helen and Ross and to Brian for their valuable contribution to the WQM program.
As Helen and Ross will be away between now and March 2026, I am seeking someone who may wish to assist in sampling Waterhen Lake. If you are interested just let me know.
Kindest regards to you all
Steven Gill
