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

Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #17372
Date and Time Friday 16th January 2026 11:25am
Approved Pending

Notes

Unable to read below 2 metres due to lead length - tb replaced

Difficult to confirm water flow due to strong wind blowing surface upstream

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 18.80 3.20 8.64 93.1 5.16
Previous 18.3 2.1 7.8 82.8 3.4
Median 14.6 2.10 8.30 86.00 3.0
0.5m 18.80 3.20 8.62 92.9 5.14
Previous 14.6 2.0 7.8 77.2 1.4
Median 14.6 2.10 8.30 86.00 3.0
1.0m 18.70 3.40 8.57 92.3 5.40 unstable EC
Previous 17.4 15.5 7.3 76.3 21.7
Median 14.7 3.90 8.47 90.20 5.5
1.5m 18.50 4.70 8.32 89.3 7.40 unstable EC
Previous 14.6 19.2 7.5 75.1 1.5
Median 14.7 3.60 8.47 90.20 5.5
2.0m 18.30 35.20 5.47 58.3 46.40
Previous 16.8 29.8 6.0 62.4 38.7
Median 14.9 31.60 8.37 87.60 40.3

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 13 7.1
Previous 0.1 15 7.0
Median 0.1 11 7.1
Bottom 3.9 80 6.5
Previous 3.8 12 6.9
Median 3.9 16 7.2

Other details

Max depth 3.95
Previous 3.93
Median 4.00
Flow estimate Pool

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