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G5 Coxon's Bridge

21 November 2025

Observation details

Overview

Estuary Gellibrand River Estuary
Site Coxon's Bridge
Observation ID #17345
Date and Time Friday 21st November 2025 11:05am
Approved Approved

Notes

Rose Jackson CCMA came along with spare meter while ours is being serviced

Water sitting on flats

23 Black swans

Aquatic plants growing on top of water sitting on flats

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 13.80 0.20 8.80 85.2 0.26
Previous 9.4 0.3 11.6 107.6 0.4
Median 13.6 0.20 8.84 85.10 0.3
0.5m 13.80 0.20 8.71 84.2 0.26
Previous 9.9 0.3 10.8 101.0 0.4
Median 14.0 0.20 8.84 85.10 0.3
1.0m 13.80 0.20 8.63 83.4 0.26
Previous 9.4 0.3 11.6 107.3 0.4
Median 14.0 0.20 8.87 85.50 0.3
1.5m 13.80 0.20 8.66 84.0 0.26
Previous 9.8 0.3 10.8 100.7 0.4
Median 14.0 0.20 8.71 84.60 0.3
2.0m 13.80 0.20 8.61 83.2 0.26
Previous 9.8 0.3 10.8 100.4 0.4
Median 12.1 0.20 9.14 86.40 0.3
2.5m 13.80 0.20 8.59 83.0 0.26
Previous 12.1 0.2 8.5 83.9 0.3
Median 12.1 0.20 9.05 85.30 0.3
2.9m 13.80 0.20 8.54 82.6 0.26
Previous 14.9 0.2 7.6 80.0 0.3
Median 12.1 0.20 9.14 86.40 0.3

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 35 6.3
Previous 0.1 10 5.6
Median 0.1 10 6.5
Bottom 2.9 27 6.7
Previous 1.6 14 5.9
Median 2.0 14 6.7

Other details

Max depth 2.95
Previous 1.75
Median 2.10
Flow estimate Fast

Observation Documents

Link Date File name Description

Download 		10-01-2026 14:09 IMG_9109.jpeg

Download 		10-01-2026 14:09 IMG_9110.jpeg

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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