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  5. 21-01-2025

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G4 Bridge at Rivernook

21 January 2025

CAUTION: This observation has not yet been reviewed by an EstuaryWatch coordinator.

Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #16671
Date and Time Tuesday 21st January 2025 09:45am
Approved Pending

Notes

Debbie Ferrari also sampling

Wind up so flow looks slow but is most likely pooled

Strong stagnant odour in bottom depth sample

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 22.00 0.40 3.72 45.8 0.62
Previous 19.7 1.1 6.1 71.4 1.5
Median 14.1 0.20 8.58 83.60 0.3
0.5m 21.90 0.40 3.59 43.9 0.61
Previous 16.6 1.1 7.6 83.0 1.6
Median 14.0 0.20 8.58 83.60 0.3
1.0m 21.70 0.40 3.44 42.0 0.64 unstable reading estimate
Previous 19.7 1.2 6.1 71.3 1.7
Median 14.1 0.20 8.46 83.30 0.3
1.5m 21.70 0.50 3.36 41.0 0.64
Previous 16.5 1.1 7.6 83.0 1.6
Median 13.9 0.20 8.46 83.30 0.3
2.0m 21.70 0.40 3.36 41.0 0.64 unstable reading estimate
Previous 18.6 32.1 3.8 43.3 45.8
Median 13.9 0.20 8.44 83.10 0.3
2.5m 21.60 13.30 1.31 16.9 19.00 unstable reading estimate
Previous 16.7 35.9 8.1 89.0 51.3
Median 13.9 0.20 8.44 83.10 0.3
3.0m 20.40 25.10 0.21 2.5 35.90
Previous 18.4 32.2 3.7 42.6 46.1
Median 14.4 0.30 8.16 81.30 0.3
3.5m 19.40 29.90 0.08 1.0 42.70
Previous 16.7 36.5 8.2 90.7 52.1
Median 14.2 0.20 8.16 81.30 0.3
4.0m 18.70 31.80 0.06 0.6 45.40
Previous 18.3 32.2 3.7 42.3 46.1
Median 14.7 0.30 7.70 79.20 0.3
4.5m 18.30 32.50 0.04 0.5 46.40
Previous 16.5 36.8 7.4 81.5 52.5
Median 14.4 0.20 7.70 79.20 0.3
5.0m 18.60 32.50 0.05 0.6 46.40
Previous 18.3 32.2 3.7 42.3 46.1
Median 13.9 0.20 8.39 81.20 0.3
5.5m 17.80 32.60 0.04 0.4 46.60
Previous 11.9 0.2 10.3 100.9 0.3
Median 13.9 0.20 8.55 83.00 0.3
5.8m 17.70 32.60 0.04 0.4 46.60
Previous 11.8 0.4 10.0 98.2 0.6
Median 13.9 0.20 8.39 81.20 0.3

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.9
Previous 0.1 9 7.0
Median 0.1 11 6.9
Bottom 5.7 27 5.9
Previous 5.1 9 6.7
Median 5.0 12 7.0

Other details

Max depth 5.84
Previous 5.20
Median 5.15
Flow estimate Pool

Observation Documents

Link Date File name Description

Download 		21-01-2025 15:42 image_4.jpg

Download 		21-01-2025 15:42 IMG_5160.jpeg

Download 		21-01-2025 15:42 IMG_5162.jpeg

Download 		21-01-2025 15:42 IMG_5163.jpeg

Preceding Observations

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