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G2 Old Coach Road Bridge Princetown

17 April 2026

Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #17540
Date and Time Friday 17th April 2026 12:05pm
Approved Approved

Notes

Pump failed at bottom but water still obtained and measured 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 15.00 2.70 8.58 84.6 4.00
Previous 19.2 1.5 5.7 61.7 2.1
Median 14.7 2.10 8.28 85.90 2.7
0.5m 14.80 2.70 8.57 84.1 4.02
Previous 20.7 1.5 5.1 57.6 2.2
Median 14.7 2.10 8.28 85.90 3.0
1.0m 14.60 2.70 8.44 82.4 4.01
Previous 19.1 1.4 4.9 52.4 2.1
Median 15.2 3.90 8.38 89.70 5.5
1.5m 15.40 15.00 3.66 36.3 20.03
Previous 20.6 1.7 6.3 70.1 2.5
Median 15.2 3.90 8.38 89.70 6.9
2.0m 15.80 16.40 3.04 30.5 22.00
Previous 19.4 2.6 0.6 7.0 4.4
Median 16.0 30.50 8.21 84.80 40.3
2.5m 16.10 40.90 5.31 53.6 50.50
Previous 20.5 12.4 0.4 4.2 18.9
Median 16.0 30.50 8.21 84.80 41.5
3.0m 16.20 38.40 7.04 71.1 54.80
Previous 18.7 31.9 0.1 1.1 42.9
Median 15.5 34.40 7.22 78.70 47.2
3.5m 16.20 38.70 6.99 70.7 55.30
Previous 19.7 28.7 23.0 2.5 39.9
Median 15.5 34.40 7.22 78.70 47.5
4.0m 16.20 38.90 6.82 69.0 55.50
Previous 15.0 35.4 6.0 66.2 27.8
Median 17.1 35.40 5.51 55.50 49.5
4.4m 16.20 38.90 6.81 68.9 55.50
Previous 12.9 35.6 5.5 55.5 41.3
Median 17.5 35.60 5.51 55.50 49.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.5
Previous 0.1 9 7.0
Median 0.1 10 7.1
Bottom 4.4 11 5.8
Previous 5.0 100 6.2
Median 3.9 17 7.1

Other details

Max depth 4.48
Previous 5.05
Median 4.00
Flow estimate Slow

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
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