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Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #16760
Date and Time Friday 7th March 2025 11:00am
Approved Approved

Notes

Debbie Ferrari - sampler

HQ 40d Meter

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.40 3.80 8.39 101.4 5.49
Previous 21.0 6.0 6.0 72.3 8.5
Median 14.7 2.10 8.27 85.30 3.0
0.5m 21.20 4.10 8.30 99.9 5.92 ”Unstable reading”
Previous 23.8 2.1 5.2 65.7 3.0
Median 14.6 1.80 8.27 85.30 3.0
1.0m 20.70 7.20 8.85 105.4 10.25
Previous 19.7 28.5 8.7 101.9 40.7
Median 15.2 2.60 8.38 86.90 5.2
1.5m 21.20 24.70 9.65 115.9 35.30
Previous 23.8 2.1 5.2 65.2 3.0
Median 14.8 2.40 8.31 86.50 4.8
2.0m 21.70 29.40 9.98 121.1 42.00 DO% high
Previous 19.1 33.0 6.6 76.7 47.1
Median 16.0 32.70 8.02 84.60 43.9
2.5m 21.30 31.60 11.20 134.9 45.10 DO% high
Previous 21.6 11.4 0.1 1.7 16.3
Median 15.8 28.90 8.02 84.60 43.2
3.0m 20.60 34.40 11.64 138.2 49.10 DO% high
Previous 18.4 34.4 3.0 35.0 49.1
Median 16.4 34.40 7.00 78.70 46.4
3.5m 19.80 35.00 9.09 106.2 50.00
Previous 19.0 34.6 0.1 0.6 49.4
Median 16.4 34.60 7.15 78.90 46.4
4.0m 19.40 35.00 6.18 71.5 50.60
Previous 18.2 34.6 1.0 11.1 49.4
Median 17.1 30.30 7.00 71.00 48.4
4.5m 19.00 35.60 2.91 33.4 50.90
Previous 17.5 36.1 0.0 0.5 51.5
Median 16.6 30.30 7.00 71.00 47.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.9
Previous 0.1 9 7.2
Median 0.1 11 7.1
Bottom 4.5 13 7.3
Previous 4.2 16 6.7
Median 3.9 21 7.1

Other details

Max depth 4.60
Previous 4.30
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