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  4. 15-12-2021

B1 The Heads

15 December 2021

Overview Notes Depth Profile Top-Bottom Documents 1 Chart
Observation details

Overview

Estuary Barwon River Estuary
Site The Heads
Observation ID #14405
Date and Time Wednesday 15th December 2021 09:23am
Approved Approved

Notes

The 50cm markers of the depth monitor need adjusting.

Turbidity was les than 9 on top and bottom.

We did not do monitoring at B2 (fisherman jetty) and B5 (Taits Point) as the water appeared very dirty due to sewerage discharge into the river as a result of the Barwon Heads sewer system failure event requiring emergency work by Barwon Water over the past few days. We considered the state of the water to be a potential Health and Safety issue.

Water Levels and Tides

Low tide time 15:18

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 18.20 37.80 9.59 102.5 54.00
Previous 18.3 38.1 10.6 112.8 54.4
Median 14.5 37.20 9.83 93.50 53.1
0.5m 18.10 37.70 9.64 102.7 53.80
Previous 14.3 31.9 10.2 98.5 45.5
Median 14.5 37.20 9.83 93.50 53.1
1.0m 18.00 37.80 9.58 101.9 54.00
Previous 18.3 38.1 10.6 113.4 54.4
Median 14.5 37.10 9.81 92.80 53.0
1.5m 18.00 37.90 9.52 101.2 54.10
Previous 14.4 35.7 10.2 99.2 51.0
Median 14.5 37.10 9.81 92.80 53.0
2.0m 17.90 37.90 9.46 100.4 54.10
Previous 18.3 38.1 10.6 113.4 54.4
Median 14.4 38.10 10.20 99.40 54.4
2.9m 17.80 38.10 9.40 99.5 54.40
Previous 14.4 36.2 10.2 99.4 51.7
Median 14.4 36.50 9.79 95.80 52.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 7.8
Previous 0.1 9 7.8
Median 0.1 9 7.5
Bottom 2.8 9 8.0
Previous 2.8 9 7.5
Median 2.4 9 7.8

Other details

Max depth 3.00
Previous 2.90
Median 2.50
Flow estimate Medium
Low tide time 15:18pm

Observation Documents

Link Date File name Description

Download 		15-12-2021 15:42 B2_The_heads.jpg

Preceding Observations

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