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G2 Old Coach Road Bridge Princetown

21 November 2025

Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #17353
Date and Time Friday 21st November 2025 12:40pm
Approved Approved

Notes

Rose Jackson attended with spare meter while ours being serviced

Unknown flow due to strong wind pushing surface water up river

Salinity auto function to be rectified

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 14.70 8.15 80.3 1.21
Previous 9.9 2.0 10.1 95.3 2.7
Median 14.5 2.10 8.33 86.00 3.0
0.5m 14.60 7.80 77.2 1.38
Previous 10.0 0.7 11.0 101.8 0.9
Median 14.6 2.10 8.30 86.00 3.0
1.0m 14.60 7.65 76.5 1.45
Previous 11.6 19.2 10.1 95.4 23.0
Median 14.7 3.60 8.61 90.60 5.5
1.5m 14.60 7.45 75.1 1.54
Previous 10.0 0.7 10.5 102.3 1.0
Median 14.8 3.60 8.47 90.20 5.5
2.0m 14.50 7.39 72.3 2.85
Previous 12.4 32.6 10.1 96.0 37.9
Median 14.9 31.60 8.51 88.90 42.2
2.5m 14.40 7.30 70.0 4.20
Previous 10.1 2.2 9.2 94.2 3.0
Median 15.8 31.60 8.37 87.60 43.2
3.0m 14.70 6.33 66.5 19.50
Previous 12.5 34.4 7.2 71.5 39.9
Median 15.5 34.40 7.22 78.90 47.8
3.5m 15.00 5.80 63.5 27.00
Previous 12.2 29.1 7.8 81.1 34.0
Median 15.5 34.40 7.38 79.20 47.8
4.0m 15.00 6.05 66.2 27.80
Previous 12.9 35.4 5.5 55.5 41.3
Median 17.5 35.40 5.51 55.50 49.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 24 7.2
Previous 0.1 9 7.7
Median 0.1 10 7.1
Bottom 4.0 24 7.4
Previous 3.9 9 7.3
Median 3.9 16 7.2

Other details

Max depth 4.15
Previous 3.97
Median 4.00
Flow estimate N/A

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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