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  5. 20-08-2025

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B1 The Heads

20 August 2025

Observation details

Overview

Estuary Barwon River Estuary
Site The Heads
Observation ID #17146
Date and Time Wednesday 20th August 2025 09:20am
Approved Approved

Notes

Water Levels and Tides

Low tide time 13:30

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.20 38.40 11.24 102.2 54.90
Previous 12.3 38.0 10.9 99.6 54.3
Median 15.6 37.20 9.42 93.60 53.1
0.5m 12.30 38.40 11.15 101.7 54.80
Previous 11.2 35.5 10.4 94.4 50.7
Median 15.6 37.20 9.41 93.60 53.1
1.0m 12.50 38.30 11.09 101.5 54.70
Previous 12.3 38.0 10.9 99.4 54.3
Median 15.7 37.20 9.45 93.70 53.2
1.5m 12.50 38.30 11.08 101.5 54.70
Previous 11.2 35.4 10.4 94.2 50.6
Median 15.7 37.20 9.36 93.70 53.2
2.0m 12.50 38.20 11.06 101.4 54.60
Previous 12.3 38.0 10.8 99.2 54.3
Median 15.7 37.60 9.40 95.70 53.7
2.5m 12.50 38.30 11.10 101.8 54.70
Previous 13.4 37.5 10.2 96.2 53.6
Median 15.7 37.60 9.40 95.00 53.7

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 7.5
Previous 0.1 9 7.9
Median 0.1 9 7.9
Bottom 2.7 9 7.8
Previous 2.8 9 8.2
Median 2.5 9 7.9

Other details

Max depth 2.80
Previous 2.90
Median 2.60
Flow estimate Slow
Low tide time 13:30pm

Observation Documents

Link Date File name Description

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
We acknowledge and respect Victorian Traditional Owners as the original custodians of Victoria’s land and waters, their unique ability to care for Country and deep spiritual connection to it.
We honour Elders past and present whose knowledge and wisdom has ensured the continuation of culture and traditional practices.
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