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H1 Site one (Hopkins River Bridge)

16 August 2026

Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #17693
Date and Time Sunday 16th August 2026 13:00pm
Approved Approved

Notes

Great results, very strong salt-wedge pushing in at depth, while very fresh top layer flowing well out to sea!  Thanks Jarred.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 13.20 1.90 9.06 85.3 3.55
Previous 10.6 2.1 8.8 79.0 4.0
Median 17.2 11.70 9.05 99.90 19.6
0.5m 13.10 1.90 8.94 83.7 3.55
Previous 12.9 2.8 9.6 91.1 5.2
Median 17.2 11.70 9.05 99.90 19.6
1.0m 13.00 8.80 6.07 59.3 12.63
Previous 13.6 23.7 5.5 60.5 38.1
Median 16.3 20.80 8.40 96.60 33.1
1.5m 13.20 21.70 5.31 57.9 32.69
Previous 13.0 5.1 8.0 77.0 9.0
Median 16.3 20.20 8.40 96.60 32.2
2.0m 13.70 29.40 6.17 70.5 45.77
Previous 13.8 30.2 2.5 28.3 46.6
Median 16.0 26.20 7.70 89.60 40.8
2.5m 13.80 31.70 5.66 64.6 48.69
Previous 14.5 26.2 5.8 66.2 40.6
Median 16.0 26.20 7.70 89.60 40.8
3.0m 13.90 32.50 4.69 53.0 49.65
Previous 14.7 29.4 5.4 62.2 45.4
Median 15.9 29.90 6.45 77.30 46.0
3.2m 13.80 32.50 3.79 43.5 49.66
Previous 15.8 23.3 5.2 59.4 36.8
Median 16.0 30.20 6.53 78.30 46.6

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 10 6.9
Previous 0.1 31 7.8
Median 0.1 9 8.1
Bottom 3.4 9 7.6
Previous 2.9 12 7.2
Median 3.8 9 7.9

Other details

Max depth 3.50
Previous 3.00
Median 3.90
Flow estimate N/A

Observation Documents

Link Date File name Description
Download 16-08-2026 16:30 img20260816_16160378.pdf

Preceding Observations

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