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  5. 16-10-2026

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H3 Site three (Mahoneys Road)

16 October 2026

Observation details

Overview

Estuary Hopkins River Estuary
Site Site three (Mahoneys Road)
Observation ID #17738
Date and Time Friday 16th October 2026 17:43pm
Approved Approved

Notes

Limited depth due to very low estuary water levels at present, but interesting that the same trend seen in the upper water column at H1 and H2 has also been measured here.  This includes high D.O. levels due to algae growth; driven by receding flows, warming water and nutrient rich conditions. 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.10 17.80 14.39 177.0 28.75
Previous 14.2 2.6 9.4 92.5 4.8
Median 16.4 9.80 9.60 103.90 16.6
0.5m 21.30 18.70 15.15 185.7 30.08
Previous 13.7 1.9 9.1 86.4 3.5
Median 16.4 9.80 9.60 103.90 16.6
0.7m 20.30 19.40 13.20 169.1 30.71
Previous 11.6 1.8 9.4 85.9 3.5
Median 17.3 10.30 9.61 104.50 17.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 8.4
Previous 0.1 15 8.2
Median 0.1 11 8.2
Bottom 0.8 14 8.2
Previous 1.4 15 8.2
Median 1.2 12 8.2

Other details

Max depth 0.90
Previous 1.50
Median 1.40
Flow estimate N/A

Observation Documents

Link Date File name Description
Download 18-10-2026 12:36 img20261018_12191405.pdf

Preceding Observations

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